ILLINOIS POLLUTION CONTROL BOARD
    Nay 5,
    1993
    IN THE HATTER OF:
    )
    R93—1
    SAFE DRINKING WATER ACT
    )
    (Identical in Substance Rules)
    UPDATE,
    PHASE
    V RULES
    (7/1/92
    12/31/92)
    )
    Proposal for Public Comment.
    Proposed Order of the Board
    (by J. Anderson):
    Pursuant to Sections 17.5 of the Environmental Protection
    Act
    (Act),
    the Board is proposing to amend the Safe Drinking
    Water Act (SDWA) regulations.
    Section 17.5 provides for quick adoption of regulations that
    are “identical in substance” to federal regulations and that
    Title VII of the Act and Section 5 of the Administrative
    Procedure Act
    (APA)
    shall not apply.
    Because this rulemaking is
    not subject to Section
    5 of the APA,
    it is not subject to first
    notice or to second notice review by the Joint Committee on
    Administrative Rules
    (JCAR).
    The federal SDWA regulations are
    found at 40 CFR 141 and 142.
    This rulemaking updates SDWA rules
    to correspond with major federal amendments more fully outlined
    in the accompanying Opinion.
    This proposed order is supported by a proposed opinion
    adopted on the same day.
    The Board will receive public comment
    on the proposal for a period of 45 days following its publication
    in the Illinois Register.
    The complete text of the proposed
    rules follows.
    IT IS SO ORDERED.
    I, Dorothy M.
    Gunn, Clerk of the Illinois Pollution Control
    Board, do hereby certify that the above order was adopted by the
    Board ~rithe
    ___________
    day of
    ~
    ,
    1992, by a vote
    of
    ~
    4
    7’
    ~-‘
    /~L~~-2~
    Dorothy H. G~n,
    Cler”k
    Illinois Po1~utionControl Board
    u~L~-Q~143

    2
    TITLE 35:
    ENVIRONNENTAL PROTECTION
    SUBTITLE F:
    PUBLIC WATER SUPPLIES
    CHAPTER I:
    POLLUTION CONTROL BOARD
    PART 604
    FINISHED WATER
    AND RAW
    WATER QUALITY
    AND
    QUANTITY
    (REPEALED)
    Section
    604.101
    604
    .
    102
    Finichcd Water Quality
    (flcpcalc~,
    ~o
    ini~1i-1L~3
    UflU
    IIUX.LIUUJU
    ~,L1OWUDiC
    ~uncentration~
    -(Rcpcalcd)-
    604.203
    Exccptiono to Naximum Allowable Conccntrationr~
    (Repealed)
    604.204
    Action Purcuant to Exccedanoe of Maximum Allowable
    Concentration (Repealed)
    Section
    604.301
    iaa.iuzu—~6, -2~8,ana ~ro~s
    ~.Irn~
    (-Rep-oalcd)
    ~04.3
    Ndii~
    (flcpcalcd)
    Section
    SUBPART
    D:
    CHLORINATION
    AND
    FLUORIDATION
    604.402
    Chlorination Exemption Rcquircmcnt~ (Repealed)
    604.403
    Condition~ifor Obtaining a Written Chlorination
    Exemption
    (rtctcalcd)
    on Exempti
    Section
    604.501
    flaw Water
    SUBPArt
    Quality
    T
    E:
    RAW
    WATER
    (Repealed)
    604~502
    flaw Water Quantity
    (Repealed)
    APPENDIX
    A
    Refcrcnccc3
    to
    Former
    Rules
    Act
    (Ill. Rev
    Li~
    ~
    ~
    ~.0l7and 1027).
    .4.4,
    .4
    .
    u~
    ~-O~L~.L!.
    BACTERIOLOGICAL QUALITY
    Total Coliform LimitQ
    •1
    ~-._
    ~
    .~ ~
    ~.t_
    _I_
    ~
    ~u’~ .-iu..~
    TotaL
    LULLLULW
    IL1~Uit—c~.J.LRple~J
    604.104
    Bacterial Plate Count Sample
    604.105
    Bacterial Plate Count Limito
    Section
    604
    l~
    fl~A
    SUBPART
    B:
    CHEMICAL AND
    PHYSICAL
    QUALITY
    £UBPART
    C:
    RADIOLOGICAL
    QUALITY
    ——
    S
    —J
    ~~~~1
    604.404
    Lo~c3ofChiorinati
    A
    i~~~____.~
    _~_~A_1
    I
    AUTHORITY:
    Implementing Ccotion
    17 and authorized by Section 27
    of the Environmental Prote&~
    -
    ~‘tat.,1987,
    ch.

    SOURCE:
    Filed with Secretary of State January
    1,
    1973; amended
    at
    2 Ill.
    flog.
    36,
    p.
    72, effective August 29,
    19-73; amended at
    3
    Ill. Reg.
    13,
    p.
    236, effective March 30,
    1979; amended and
    codified
    at
    6 Ill. Reg.
    11497,
    effective
    September
    14,
    1982;
    amended
    at
    6
    Ill.
    Reg.
    14344,
    effective
    November
    3,
    1982;
    amended
    in
    fl84-12
    at
    14
    Ill.
    Rcg.
    689,
    effective
    January
    2,
    1990;
    amended
    in
    R83—26
    at
    14
    Ill.
    Reg.
    16435,
    effective
    Ccptciubcr
    20,
    19-9-~Repealed in
    R93-1
    at
    17
    Ill.
    Req.
    ,
    effective
    CUBPART
    A:
    BACTERIOLOGICAL QUALITY
    Section
    604.101
    Standard
    Sample
    This
    Section
    applies
    until the—effective--date for the filtration
    and
    disinfection requirements of 35 Iii.
    Adju.
    Code
    611.Subpart
    B
    a-s applicable to each aupply~-
    a)
    For the membrane filter technique,
    not
    ices
    than
    100
    milliliters.-
    b)
    For the fermentation tube method,
    five standard
    portions
    of
    either ten milliliters or 100 milliliters.
    (Source:
    Amended
    at
    14
    Ill.
    Rcg.
    16435,
    effective
    September
    20,
    1990)-
    Section 604.102
    Total Coliforin Limits
    This Section applies until the effective data for the
    filtration
    and
    disinfection
    requirements
    of
    35
    Ill.
    Adm.
    Code
    611,
    Subpart
    B
    as applicable to each supply.
    The number of organisms of the
    r~n1~frs~-,-
    group
    present
    in
    potable
    “-4-—
    ‘-
    indicat-cd
    .p.w,.,..,.n4..4.
    4
    .r~
    nmn
    .4
    ~
    ~
    cxam~..cd,
    shall
    not
    exceed
    the
    fol1owi...~
    limits:
    i-
    a)
    When
    the membrane filter technique is used,
    arithmetic
    mean
    coliforin
    density
    of
    all
    standard
    samples
    examined
    per month shall not exceed one per 100 milliliters.
    Coliform
    colonies
    per
    standard
    sample
    shall
    not
    exceed
    four
    per
    100
    milliliters
    in:
    1)
    more
    than
    one
    standard
    sample
    when
    less
    than
    twenty arc examined per month; or
    2)
    more
    than
    five
    percent
    of
    the
    standard
    samples
    when twenty or more
    are
    examined
    per
    month.
    b)
    ~fi-
    .~
    •_.__•4—
    4
    p.
    ~—
    t.
    —‘~
    -
    3
    -W~
    #~..
    ...illilitcr
    standard
    ~
    by
    tho rarmentation tube method,
    ~
    more
    than
    ten
    percent
    in
    any
    month
    shall
    show
    the
    presence
    of
    the
    coliform

    4
    group.
    The presence of the coliform group in
    tnrce
    or
    more ten-milliliter portions of a standard sample shall
    not be allowable if this occurs in:
    1)
    more than one sample per month when less than
    twenty arc
    examined
    per
    month;
    or
    2)
    more than five percent of the samples when twenty
    or
    more
    arc examined
    r~r
    month.
    When 100-milliliter standard portions are examined by
    the fermentation tube method, not more than sixty
    percent in any mon~n
    snaii
    snow
    tne
    presence
    of
    the
    coliforin
    group.
    The
    presence
    of
    the
    coliform
    group in
    five of the 100-milliliter portions of a
    standard
    sample shall not be allowable if this occurs iru
    1)
    more than one sample per month when less than five
    are examined per month; or
    more than twenty perccn-c oi
    inc
    r~’mr~1c~
    when five or
    more arc examined per month.
    (Source:
    Amended at 14 Ill.
    fleg.
    16435, ~effcctive September 20,
    199-0-)-
    Section 604.103
    Total Coliform Check-Samples
    This Section applies until the effective date for the filtration
    and disinfection requirements of
    35- Ill.
    Adin.
    Code C11.Cubpart B
    as applicable to each supply.
    r~
    When coliform densities exceed thea limit established in
    Seotion 604.102, they may indicate a breakdown in the
    protective barriers and shall be cause for special
    follow—un action to locate and eliminate the cause of
    concauu.nacion.
    b)
    Chock—samples may be taken at the discretion of the
    Environmental Protection Agency
    (Agency) under the
    following
    conditions:
    1)
    When coliform
    colonies
    in
    a
    single
    standard
    sample
    exceed four per 100 milliliters,
    as measured by
    the-membrane filter technique, daily oamples shall
    bc promptly -collected
    and
    examined from thc same
    campling point until the results obtained from at
    least two consecutive samples show less than one
    coliform
    nr~v
    100 milliliters.
    2)
    When
    organisms
    of the coliform group occur
    in
    three
    or
    more
    of
    the
    ten-milliliter
    portions
    of
    a
    0
    1~2-031~6

    5
    single
    standard
    sample
    (fermentation
    tube
    method),
    daily
    samples
    shall
    ho
    promptly
    collected
    and
    examined
    from
    the
    same
    sampling
    point
    until
    the
    results
    obtained
    from
    at
    least
    two
    consecutive
    samples
    show
    no
    positive
    results.
    same
    camo~
    ~-
    trom
    th~..
    ~i-:point
    until
    the
    ~.sults
    obtained
    from
    at
    least
    two
    consecutive
    samples
    The
    sampling
    point
    rcquircdtobc
    -
    —---C-
    may not
    history
    of
    questionable
    water
    quality.
    These
    check
    samples shall not be included in the total number of
    samples
    examined
    per
    month,
    nor
    shall
    the
    check
    samples
    be
    used
    as
    a—basis
    for
    determining
    compliance
    with
    Section 604. 103 (b).
    (Source:
    Amended
    at
    14
    Ill.
    rtcg.
    16435,
    effective
    September
    20,
    199 0-)-
    Section
    604.104
    Bacterial
    Plato
    Count
    Sample
    This
    Section
    applies
    until
    the
    effective
    date
    for
    the
    filtration
    and
    disinfection
    requirements
    of
    35
    Ill.
    Adm.
    Code
    611.Cubpart
    B
    as
    applicable
    to
    each
    supply.
    When
    bacterial
    plate
    counts
    arc
    considered
    by
    the
    Agency
    to
    be
    necessary,
    the
    sample
    for
    the
    bacterial
    plate
    count
    using
    Standard
    Plate-Count
    Agar
    (35
    C,
    48
    hours)
    shall
    consist—of
    two
    portions
    of
    one
    milliliter
    and
    two
    portions
    of
    one-tenth
    milliliter.
    H(Sourcc:
    Amended
    at
    14
    Ill.
    R
    1990)-
    Section
    604.105
    Bacterial
    eg.
    16435,
    effective
    Plate
    Count
    Limits
    September
    20,
    the
    filtration
    This
    Section
    applies
    until
    the
    effective
    date
    for
    and disinfection requirements of 35 Ill.
    Adiu.
    Code 611.Cubpart B
    as
    applicable
    to
    each
    supply.
    a)
    The
    max-imum
    nuinbe:
    water
    —“~--~
    to
    the
    ‘-
    bacterial
    ~
    O~L~2-03L~7
    3)
    When
    organisms
    of
    the
    coliform
    group
    occur
    in
    all
    five
    of
    the
    100-milliliter
    portions
    of
    a
    single
    standard
    sample
    (fermentation
    tube
    method),
    daily
    samples
    rih~-~1T
    hr
    iwmrd-1~j
    llckrird
    nntl
    ~vmir~rr~
    for
    the
    bact
    t~iiisu1nar
    -
    --
    significant
    figures.
    ial
    plate
    ~
    organluuiu
    P~L
    urillilitcr, based on arithmetic average of all
    s-amples
    ,
    1
    examined
    in
    a
    ‘IT~I~r
    -
    i-hr’~-w
    d~~f-~i
    calendar
    ~~ih~1
    1
    hr
    month.
    In
    vr’r~r~r+r’d
    determining
    1-n
    +trn
    C-
    in
    the

    6
    exceed
    500
    organisms
    per
    one
    milliliter,
    either
    in
    portions
    of
    the
    distribution
    network
    or
    in
    finished
    water
    reservoir
    storage,
    the
    Agency
    shall
    determine
    if
    those
    bacterial
    counts
    require
    further
    action
    to
    be
    taken
    to
    protect
    the
    water
    consumers.
    Upon
    ouch
    findings,
    prompt
    attention
    shall
    be
    directed
    by
    the
    owner
    toward
    finding
    the
    cause
    and
    taking
    appropriate
    action
    for
    correction.
    (Source:
    1-990)-
    Amended
    at
    14
    Ill.
    flog.
    16435,
    effective
    September
    20,
    SUBPART B:
    CHEMICAL
    AND
    PHYSICAL QUALITY
    Section 604.201
    Finished Water Quality
    (Repealed)-
    -(-Seurcc:
    Repealed at 14
    Ill.
    Reg.
    16435, effective September 20,
    -1990-)-
    Section 604.202
    Contaminants and Maximum Allowable
    Concentrations (Repealed)-
    Repealed
    at
    14 Ill. Reg.
    16435, effective September 20,
    (Source:
    1090)
    Section 604.203
    Exceptions to Maximum All
    Concentrations (Repealed)
    -I
    (Source:
    Repealed at 14 Ill.
    flcg.
    16435,
    effective September 20,
    1-9-90)
    Section 604.204
    Action Pursuant to Exceedance of Maximum
    Allowable
    Concentration
    (Repealed)
    (Source:
    Repealed at 14 Ill. Reg.
    16435,
    effective September 20,
    1900-)-
    SUBPART C:
    RADIOLOCICAL QUALITY
    Section 604.301
    Radium
    -
    266,
    -228,
    and Cross Alpha Particle
    Activity (Repealed)
    (Source:
    -1990)
    Repealed at
    14
    Ill.
    Reg.
    16435,
    effective September 20,
    604.302
    Man-Made Radioactivity
    (Repealed)
    Section
    (Fnurrn
    Repealed
    at
    14
    -Ill.
    Reg.
    16435,
    effective
    September
    2fl
    L~~2-Q3L48

    7
    Section 604.303
    Determining Maximum Allowable Concentrations
    -(Repealed)
    (Source:
    Repealed at 14 Iii. Beg.
    16435,
    effective September 20,
    1000)
    SUBPART D:
    CHLORINATION
    AND
    FLUORIDATION
    Section 60-4.401
    Chlorination flcguircmcnt
    This Section
    applies
    until
    the effective
    date
    for
    the
    filtration
    and
    disinfection
    requirements
    of
    35 Ill.
    Adm. Code 611.Cubpart B
    -as
    applicable
    to
    each
    supply.
    All
    supplies,
    except
    those
    community
    water
    supplies
    exempted
    pursuant
    to
    Section
    17(b)
    of
    the Environmental Protection Act
    (Ill. Rev.
    Stat.
    1987.
    ch.
    111
    1/2,
    .~.
    1017(b)
    shall chlorinate the
    before ~
    the
    distribution system.
    -—
    rcquL.
    I
    maintain residuals of tree or comDincd chlorine at
    levc-lci sufficient to provide adequate protection.
    chlorination.
    promulgate
    of
    this
    I
    ‘-
    — —
    mpcd
    wells
    and
    4-
    A~A
    ~
    A-~
    (Source:
    Amended
    at
    14
    Ill.
    Rcg.
    16435,
    effective
    September
    20,
    1090)
    Section
    604.402
    Chlorination
    Exemption
    Requirements
    (Repealed-)-
    (Source:
    Repealed
    at
    14
    Ill.
    Beg.
    16435,
    effective
    September
    20,
    1000)
    Section 604.403
    Conditions for Obtaining a Written
    Chlorination
    Exemption
    (Repealed)
    (Source:
    Repealed at 14
    Iii. Beg.
    16435,
    effective September 20,
    1990)
    Section
    604.404
    Loss
    of
    Chlorination
    Exemption
    (Repealed)
    (Cource:flepealod
    at
    14
    Ill.
    Beg.
    16435,
    effective
    September
    20,
    1900)
    Section
    604.405
    Fluoridation
    Requirement
    (Repealed)
    (Source:
    Repealed
    cit
    14
    Ill.
    Beg.
    16435,
    effective
    September
    20,
    0
    ~42-03L39

    8
    1990)-
    ~u~i&tcr
    i~:
    ion 604.501
    Raw Water Quality (Rc~
    (Sour-ce:
    Repealed
    at
    14
    111.
    flog.
    16435,
    effective
    September 20,
    1990)
    Section
    604.502
    Raw
    Water
    -Quantity
    (Repealed)
    September 20,
    (Source:
    rtc~iDcalcdat 14
    Ill.
    Beg.
    16435, effective
    1990)
    Sectii
    (Source:
    Repealed
    at
    14
    Ill.
    Beg.
    Scptcmbcr
    20,
    1990)
    01
    E~2-(J350

    9
    TITLE 35:
    ENVIRONMENTAL PROTECTION
    SUBTITLE F:
    PUBLIC WATER SUPPLIES
    CHAPTER I:
    POLLUTION CONTROL BOARD
    PART 605
    SAMPLING
    AND MONITORING
    (REPEALED)
    £-ection
    605.101
    Frequency
    of
    Bacteriological
    Sampliny
    Minimum
    Allowable
    Monthly
    Samples for Bacteriological
    Analysis
    605.103
    Frequency of Chemical Analysis Sampling
    (Repealed)
    605.104
    Frequency of Trihalomethanc Analysis Sampling
    (Repealed)
    605.105
    Monitoring Requirements for Radium-226,
    -228
    and
    Gross
    Alpha particle Activity (Repealed)
    605.106
    Monitoring
    Frequency
    for
    Radium—226,
    -228
    and
    Cross
    Alpha
    Particle
    Activity
    (Repealed)
    605.107
    Monitoring Requirements for Man-Made Radioactivity
    (Repealed)
    605.103
    Monitoring Frequency for Man-Made Radioactivity
    (Repealed)
    605.
    109
    Surface
    Water
    Supplies
    Additional
    Monitoring
    Requirements
    605.110
    Modification
    of
    Monitoring
    Requirements
    (Repealed)
    605.Appcndix
    A
    References
    to
    Former
    Rules
    (Repealed)
    AUTHORITY:
    Implementing Section 17
    and
    authoriced
    by
    Section 27
    of the Environmental Protection Act
    (Ill. Rev.
    Stat.
    1987.
    ch.
    I
    I
    I
    L
    pars.
    i017
    and
    1027
    £415
    ILCC
    5/17
    and
    273,.
    (~JI
    Ci.L.1
    SOURCE:
    Filed with Ceoretary
    ~
    January ~
    -J ‘~,
    unu.iiu~u
    ~.LL
    ..
    ILL.
    LtLy.
    ..30,
    p.
    i.~,
    cLeu~.Lvc
    August
    ..~‘,
    i.si~
    amended
    and
    codified at
    6 Ill.
    Beg.
    11497,
    effective—September 14,
    1982;
    amended at 6
    Ill. Beg.
    14344,
    effective November
    3,
    1982; amended
    in
    R84—12
    at
    14
    Ill.
    Beg.
    695,
    effective
    January
    2,
    1090;
    amended
    at 14 Ill. Beg.
    16642, effective
    September
    20,
    l990Repealed
    in
    R93—l at 17
    Ill.
    Req.
    ,
    effective
    Section 605.101
    Frequency of Bacteriological Sampling
    This Section applies until the effective date for the filtration
    and
    disinfection
    requirements
    of
    35
    Ill. Adm. Code 611.Cubpart B
    as
    applicable
    to
    each
    supply.
    a)
    Representative camp
    distr1’~~
    analysis.
    lea
    of
    the
    finished
    water
    fr-om
    the
    A..
    I_
    — t......
    I
    S..
    .5...
    .3
    -
    I
    L_ — —
    -
    ~i.u~z
    system
    ~rc
    ~..u
    ~
    ~u
    ~
    montniy
    uy
    ~nc~h
    nw-Tier, official custodian,
    or his authorized
    ~crsonnei to a certified laboratory for bacteriological
    u!4~L~)

    monthly is acpcnaent upon
    shown in Section 605.102.
    I
    -
    S.
    -
    Lmbcrof sa
    I
    es may bc requircd by the
    b)
    The owner,
    official custodian,
    or authorized personnel
    of any community water supply which is exempt from
    chlorination pursuant to 35 Ill.
    Ad-rn.
    Code 604.403
    shall submit samples to a certified laboratory fo~
    bacteriological analysis at least twice a month.
    Each
    s-ubmission shall consist of—the minimum number of
    -samples shown in Section 605.102 plus raw water samples
    of a sufficient number to assur-e that each active well
    is sampled at least monthly.
    c)
    It shall be the responsibility of the su~lyto have
    •rna.a~..~e..,..—,~
    4
    a.
    ~.
    ...._~
    ..thcr
    at
    it ...44......~.._.fic~c1
    1-aboratory or at any other certified laboratory.
    The
    !i~rcr’nr-~j
    mw
    vr’rnai-rr~
    tihM~
    -~r~mr~
    n~
    il
    1
    -nf
    thc~
    mnnt~h1v
    ~.L
    ‘~“
    caiirnles be submitted to its laboratories.
    (Source:
    Amended at 14 Iii. Beg.
    16642,
    effective September 20,
    1090)
    Section 605.102
    Minimum Allowable Monthly -Samples for
    Bacteriological Analysis
    This Section applies until the effective-date for the filtration
    and disinfection requirements of 35 Iii.
    Adm.
    as applicable to each supply.
    Code 611.Cubpart B
    Population
    Minimum number of
    Samples Pper Month
    101 to 2,500
    2
    2,501 to 3,300
    3
    3,301 to 4,100
    4
    4,101 to 4,900
    5
    4,901 to 5,800
    6
    5,801 to 6,700
    7
    6,701 to 7,600
    8
    7,601 to 3,500
    9
    8,501 to 9,400
    10
    9,401 to 10,300
    11
    10,301 to 11,100
    12
    11,101 to 12,000
    13
    12,001 to 12,900
    14
    12,901
    to 13,700
    15
    Li
    I
    10
    1
    C-
    __1__..
    A
    S~k.
    the population

    11
    16
    13,701 to 14,600
    17
    14,601 to 15,500
    18
    15-,501 to 16,300
    19
    16,301 to 17,200
    20
    17,201 to 18,100
    21
    18,101 to 18,900
    -
    Cs
    18,901 to 19,800
    23
    19,801 to 20,700
    24
    20,701 to 21,500
    25
    21,501 to 22,300
    26
    22,301 to 23,200
    27
    23,201 to 24,000
    24,001 to 24,900
    28
    24,901 to 25,000
    29
    25,001 to 28,000
    30
    28,001 to 33,000
    35
    33,001 to 37,000
    40
    37,001 to 41,000
    45
    41,001 to 46,000
    50
    55
    46,001 to 50,000
    60
    50,001 to 54,000
    65
    54,001 to 50,000
    70
    59,001 to 64,000
    64,001 to 70,000
    80
    70,001 to 76,000
    76,001 to 83,000
    90
    33,001 to 90,000
    90,001 to 9C,000
    05
    06,001 to 111,000
    1-00
    111,001 to 130,000
    110
    130,001 to 160,000
    120
    160,001 to 190,000
    130
    -190,00? to 220,000
    140
    220,001 to 250,000
    150
    250,001 to 290,000
    1-60
    290,001 to 320,000
    170
    320,001 to 360,000
    180
    360,001 to 410,000
    190
    410,001 to 450,000
    200
    450,001 to 500,000
    210
    500,001 to 550,000
    220
    550,001 to GO0,-000
    230
    600,001 to 660,000
    240
    660,001 to 720,000
    250
    720,001 to 780,000
    260
    780,001 to 840,000
    270
    840,001 to 910,000
    280
    910,001 to 970,000
    200
    970,001 to 1,050,000
    300
    1,050,001 to 1,140,000
    310
    1,140,001 to 1,230,000
    320
    1,230,001 to 1,320,000
    330
    j) ~
    L~-0353

    (Source:
    Amended at 14 Ill. Beg.
    16642, effective September 20,
    19-90)-
    Section 605. 103
    Frequency of Chemical Analysis Sampling
    -(Repealed)
    (Source:
    1990-)-
    Repealed at 14 Ill.
    Beg.
    16642, effective September 20,
    Section
    605.104
    Frequency of Trihalomethanc Analysis Sampling
    fflcpealcd)
    (Source:
    1900)-
    Repealed
    at
    14
    Ill.
    Beg.
    16442,
    effective
    September
    20,
    Section 605.105
    Monitoring Requirements for fladium-226,
    -228
    and Cross Alpha particle Activity
    (Repealed)
    (Source:
    -1990)
    Repealed at 14 Ill. Beg.
    16642, effective September 20,
    Section 605.106
    Monitoring Frequency for Radium—226,
    -223 and
    Cross Alpha Particle Activity (Repealed)
    (Source:
    1990)
    Repealed at 14 Ill.
    flog.
    16642, effective September 20,
    Section 6-05.107
    Monitoring Requirements for Man-Made
    Radioactivity (Repealed)
    (~ourcic~
    Repealed
    at
    14
    Ill.
    flog.
    16642,
    effective September 20,
    1990)-
    U~
    ‘~
    t~_
    u~jJ~~
    12
    1,320,001
    1,420,001
    1,520,001
    1,630,001
    1,730,001
    1,350,001
    1,970,001
    2,060,001
    2,270,001
    2,510, 001
    2,750,001
    3,020,001
    3,320,001
    3,620,001
    2,960,001
    to 1,420,000
    to
    1,520,000
    to 1,630,000
    to 1,730,000
    to
    1,850,000
    to
    1,970,000
    to 2,060,000
    to
    2,270,000
    to 2,510,000
    to 2,750,000
    to 3-,020,000
    to 3,320,000
    to 3,620,000
    to 3,960,000
    to 4,310,000
    340
    350
    360
    370
    380
    39-~
    400
    410
    Cs
    430
    440
    450
    460
    470
    480
    4,310,001 to 4,690,000
    490
    4,690,001 or more
    500

    Section 605.
    Radioactivity
    (Repealed)
    (Source:
    Repealed at 14 Ill.
    Beg.
    16642,
    effective September 20,
    1990)
    Section 605.109
    Surface Water Supplies Additional Monitoring
    Requirements
    This Section applies until the offoctive date for the filtration
    and di-sinfoction requirements of 35 Ill. Adm.
    Code 6l1.Bubpart B
    as applicable
    to each supply.
    Owners
    or official custodians of
    community water supplies utilizing surface water sources sha-Il
    ens
    ur-el-
    a)
    that finished water samples arc taken at
    arcprcsentativc entry points to the distribution
    syctemat least once per day, and
    b)
    that a turbidity analysis is performed on each of
    thcsamplcs
    immediately.
    The analysis of the samples
    shall be done by an individual
    who—has been approved by
    the Agency
    as qualified to
    make thi-s analysis.
    (Source:
    Amended at 14 Ill. Beg.
    16642, effective September 20,
    1990-)-
    Section
    605.110
    Modification of Monitoring Requirements
    (Repealed)-
    (~-nir~
    Repealed at
    14 Ill. Beg.
    16642, effective September 20,
    i
    ;~
    13
    Section 605.Appcndix A
    References to Former Rules
    (Repealed)
    (-Sour
    1990)
    I
    -
    0
    L~2-O355

    14
    TITLE
    35:
    ENVIRONMENTAL
    PROTECTION
    SUBTITLE F:
    PUBLIC WATER SUPPLIES
    CHAPTER
    I:
    POLLUTION CONTROL BOARD
    PART
    611
    PRIMARY DRINKING WATER STANDARDS
    SUBPART A:
    GENERAL
    Section
    611.100
    611.101
    61?.
    102
    611.103
    611.107
    611.108
    611.109
    611.110
    611.111
    611.112
    611.113
    611.114
    611.115
    611.120
    611.121
    611.125
    611. 126
    611. 130
    Section
    611.201
    611.202
    611.211
    611.212
    611.213
    611.
    220
    611.230
    611.231
    611.232
    611.233
    611.240
    611.241
    611.242
    611.250
    611. 261
    611. 262
    611. 271
    611.272
    Purpose, Scope and Applicability
    Definitions
    Incorporations
    by
    Reference
    Severability
    Agency Inspection of PWS Facilities
    Delegation to Local Government
    Enforcement
    Special Exception Permits
    Section 1415 Variances
    Section 1416 Varianc~s
    Alternative Treatment Techniques
    Siting requirements
    Source Water Quantity
    Effective dates
    Maximum Contaminant Levels
    Fluoridation Requirement
    Prohibition on Use of Lead
    Special Requirements for Certain Variances and Adjusted
    Standards
    SUBPART B:
    FILTRATION
    AND
    DISINFECTION
    Requiring
    a
    Demonstration
    Procedures for Agency Determinations
    Filtration Required
    Groundwater under Direct Influence of Surface Water
    No Method of HPC Analysis
    General Requirements
    Filtration Effective Dates
    Source Water Quality Conditions
    Site—specific Conditions
    Treatment Technique Violations
    Disinfection
    Unfiltered PWSs
    Filtered PWS5
    Filtration
    Unfiltered
    PWSs:
    Reporting
    and
    Recordkeeping
    Filtered PWSs:
    Reporting and Recordkeeping
    Protection during Repair Work
    Disinfection following Repair
    Section
    SUBPART
    C:
    USE
    OF
    NON-CENTRALIZED
    TREATMENT
    DEVICES
    ‘J~
    .~—

    15
    611.280
    611.290
    Section
    611.295
    611. 296
    611.297
    Section
    611.
    300
    611. 301
    611.310
    611.311
    611. 320
    611.325
    611.330
    611.331
    Section
    611.350
    611.351
    611.352
    611.353
    611. 354
    611. 355
    611.356
    611. 357
    611. 358
    611.359
    611.360
    611.361
    Point-of-Entry
    Devices
    Use
    of
    Point-of-Use
    Devices
    or
    Bottled
    Water
    SUBPART D:
    TREATMENT TECHNIQUES
    General Requirements
    Acrylamide
    and
    Epichlorohydrin
    Corrosion
    Control
    SUBPART
    F:
    MAXIMUM
    CONTAMINANT
    LEVELS
    (MCL’S)
    Old MCLs for Inorganic Chemicals
    Revised MCLs for Inorganic Chemicals
    Old MCL5 for Organic Chemicals
    Revised
    MCLs
    for
    Organic
    Contaminants
    Turbidity
    Microbiological
    Contaminants
    Radium and Gross Alpha Particle Activity
    Beta Particle and Photon Radioactivity
    SUBPART
    G:
    LEAD
    AND COPPER
    General
    Requirements
    Applicability of Corrosion Control
    Corrosion Control Treatment
    Source Water Treatment
    Lead Service Line Replacement
    Public Education and Supplemental Monitoring
    Tap Water Monitoring for Lead and Copper
    Monitoring for Water Quality Parameters
    Monitoring for Lead and Copper in Source Water
    Analytical Methods
    Reporting
    Recordkeeping
    SUBPART K:
    GENERAL MONITORING
    AND
    ANALYTICAL REQUIREMENTS
    Alternative Analytical Techniques
    Certified Laboratories
    Laboratory Testing Equipment
    Consecutive PWSs
    Special Monitoring for Unregulated Contaminants
    SUBPART L:
    MICROBIOLOGICAL
    MONITORING
    AND ANALYTICAL REQUIREMENTS
    Routine Coliform Monitoring
    Repeat
    Coliform
    Monitoring
    Invalidation
    of
    Total
    Coliform
    Samples
    Sanitary
    Surveys
    Fecal Coliform and E. Coli Testing
    Analytical
    Methodology
    Section
    611.480
    611. 490
    611.491
    611. 500
    611. 510
    Section
    611.521
    611. 522
    611. 523
    611. 524
    611. 525
    611. 526
    (‘~I
    ~

    16
    611.527
    Response to Violation
    611.531
    Analytical Requirements
    611.532
    Unfiltered PWS5
    611.533
    Filtered PWSs
    SUBPART H:
    TURBIDITY
    MONITORING
    AND ANALYTICAL REQUIREMENTS
    Section
    611.560
    Turbidity
    SUBPART
    N:
    INORGANIC
    MONITORING
    AND
    ANALYTICAL
    REQUIREMENTS
    Violation of State MCL
    Frequency
    of
    State
    Monitoring
    Applicability
    Monitoring
    Frequency
    Asbestos Monitoring Frequency
    Inorganic
    Monitoring
    Frequency
    Nitrate
    Monitoring
    Nitrite Monitoring
    Confirmation Samples
    More Frequent Monitoring and Confirmation Sampling
    Additional Optional Monitoring
    Averaging
    Inorganic
    Monitoring
    Times
    Inorganic Analysis
    Monitoring
    Requirements
    for
    Old
    Inorganic
    MCLs
    Special Monitoring for Sodium
    Special Monitoring for Inorganic Chemicals
    SUBPART 0:
    ORGANIC MONITORING AND ANALYTICAL REQUIREMENTS
    Section
    Definitions
    Old
    MCLs
    Analytical Methods for Old MCLs
    Phase I~and Phase II. and Phase V Volatile Organic
    Contaminants
    Sampling for Phase I Volatile Organic
    Contaminants
    Phase II,Phase
    IIB, and Phase V Synthetic Organic
    Contaminants
    Monitoring for 36 Contaminants
    (Repealed)
    Analytical Methods for 36 Contaminants
    (Repealed)
    Special Monitoring for Organic Chemicals
    SUBPART P:
    THM MONITORING AND
    ANALYTICAL REQUIREMENTS
    Sampling, Analytical and other Requirements
    Reduced Monitoring Frequency
    Averaging
    Analytical
    Methods
    Modification
    to
    System
    SUBPART
    Q:
    RADIOLOGICAL MONITORING AND ANALYTICAL REQUIREMENTS
    Section
    611. 591
    611.592
    611. 600
    611. 601
    611.602
    611.603
    611. 604
    611. 605
    611. 606
    611. 607
    611.608
    611. 609
    611. 610
    611. 611
    611. 612
    611.630
    611.631
    611.640
    611.641
    611. 645
    611. 646
    611. 647
    611. 648
    611. 650
    611. 657
    611.658
    Section
    611. 680
    611. 683
    611. 684
    611.685
    611.686
    O~
    ~~.2-O358

    17
    Section
    611.720
    Analytical Methods
    611.731
    Gross
    Alpha
    611.732
    Manmade Radioactivity
    SUBPART T:
    REPORTING, PUBLIC NOTIFICATION AND RECORDKEEPING
    Section
    Applicability
    Monthly Operating Report
    Notice
    by
    Agency
    Cross Connection Reporting
    Reporting
    Reporting MCL and other Violations
    Reporting
    other
    Violations
    Notice to New Billing Units
    General Content of Public Notice
    Mandatory Health Effects Language
    Fluoride Notice
    Fluoride
    Secondary
    Standard
    Record Maintenance
    List of 36 Contaminants
    A Mandatory Health Effects Information
    B Percent Inactivation of G. Lamblia Cysts
    C Common Names of Organic Chemicals
    D Defined Substrate Method for the Simultaneous
    Detection of Total Coliforms and Eschricia Coli
    from Drinking Water
    E Mandatory Lead Public Education Information
    Total Coliform Monitoring Frequency
    Fecal
    or
    Total
    Coliform
    Density
    Measurements
    Frequency of RDC Measurement
    Number of Lead and Copper Monitoring Sites
    Lead and Copper Monitoring Start Dates
    Number of Water Quality Parameter Sampling Sites
    Summary of Monitoring Requirements for Water
    Quality
    Parameters’
    Federal Effective Dates
    AUTHORITY:
    Implementing Sections
    17 and 17.5 and authorized by
    Section 27 of the Environmental Protection Act
    (Ill.
    Rev.
    Stat.
    1991,
    ch.
    111½, pars.
    1017,
    1017.5 and 1027 415
    ILCS 5/17,
    5/17.5 and 5/27).
    SOURCE:
    Adopted in R88—26 at 14 Ill. Reg.
    16517, effective
    September 20,
    1990;
    amended in R90—21 at 14 Ill. Reg.
    20448,
    effective December 11,
    1990; amended in R90-13 at 15 Ill. Reg.
    1562, effective January 22,
    1991; amended in R91—3 at 16 Ill.
    Reg.
    19010,
    December
    1,
    1992;
    amended
    in
    R92—3
    at
    17
    Ill.
    Reg.
    _____,
    effective
    ;
    amended in R93-1 at 17
    Ill.
    Red.
    ,
    effective
    611.830
    611.831
    611. 832
    611. 833
    611. 840
    61?. 851
    611. 852
    611.853
    611. 854
    611. 855
    611. 856
    611.858
    611. 860
    611.870
    611.Appendix
    611.Appendix
    611.Appendix
    611.Appendix
    611.Appendix
    611.Table A
    61?.Table B
    61l.Table C
    611.Table D
    611.Table E
    611.Table F
    611.Table
    G
    611.Table
    Z
    U
    ~-
    ~
    £
    U
    .~i

    18
    SUBPART A:
    GENERAL
    Section 611.101
    Definitions
    As
    used
    in
    this
    Part,
    the
    term:
    “Act” means the Environmental Protection Act (Ill. Rev.
    Stat.
    1991,
    ch.
    111½,par.
    1001
    et
    seq.
    415
    ILCS
    5/1
    et
    seq.)
    “Agency.”
    means
    the
    Illinois
    Environmental
    Protection
    Agency.
    BOARD
    NOTE:
    The
    Department
    of
    Public
    Health
    (“Public
    Health”) regulates non—community water supplies
    (“non—
    CWS5”,
    including non—transient, non—community water
    supplies (“NTNCWSs”) and transient non-community water
    supplies (“transient non—CWS5”)).
    For the purposes of
    regulation
    of
    supplies
    by
    Public
    Health
    by
    reference
    to
    this Part,
    “Agency” shall mean Public Health.
    “Ai” means “inactivation ratio”.
    “Approved source of bottled water”, for the
    purposes of Section 611.130(e) (4), means a source
    of
    water
    and
    the
    water
    therefrom,
    whether
    it
    be
    from a spring, artesian well,
    drilled well,
    municipal water supply, or any other source, that
    has been inspected and the water sampled,
    analyzed, and found to be a safe and sanitary
    quality
    according
    to
    applicable
    laws
    and
    regulations
    of
    State
    and
    local
    government
    agencies
    having jurisdiction, as evidenced by the presence
    in the plant of current certificates or notations
    of approval from each government agency or
    agencies having jurisdiction over the source,
    the
    water
    it
    bottles, and the distribution of
    the
    water
    in
    commerce.
    BOARD NOTE:
    Derived from 40 CFR 142.62(g) (2) and
    21 CFR 129.3(a)
    (1992).
    The Board cannot compile
    an exhaustive listing of all federal,
    state, and
    local laws to which bottled water and bottling
    water
    may
    be
    subjected.
    However,
    the
    statutes
    and
    regulations
    of
    which
    the
    Board
    is
    aware
    are
    the
    following:
    the Illinois Food,
    Drug and Cosmetic
    Act
    (410 ILCS 62011 et
    seq.,
    formerly Ill. Rev.
    Stat.
    1991
    ch.
    56½,
    par.
    501 et
    seq.),
    the Bottled
    Water Act
    (815 ILCS 310/1 et
    seq.,
    formerly Ill.
    Rev.
    Stat.
    1991
    ch.
    111½, par.
    121.101),
    the
    DPH
    Water
    Well
    Construction
    Code
    (77
    Ill.
    Adm.
    Code
    920),
    the
    DPH
    Water
    Well
    Pump
    Installation
    Code
    (77 Ill. Adm. Code 925), the federal bottled water

    19
    quality standards
    (21 CFR 103.35), the federal
    drinking water processing and bottling standards
    (21
    CFR
    129),
    the
    federal
    Good
    Manufacturing
    Practices for human foods
    (21 CFR 110), the
    federal
    Fair
    Packaging
    and
    Labeling
    Act
    (15
    U.S.C.
    SS
    1451 et
    seq.),
    and the federal Fair Packaging
    and Labeling regulations
    (21 CFR 201).
    “Best
    available
    technology”
    or
    “BAT”
    means
    the
    best
    technology, treatment techniques or other means that
    USEPA has found are available for the contaminant in
    question.
    BAT is specified in Subpart F of this Part.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Board” means the Illinois Pollution Control Board.
    “CAS No” means “Chemical Abstracts Services Number”.
    “CT”
    or
    “CT~~”
    is
    the
    product of “residual disinfectant
    concentration”
    (RDC or C)
    in mg/L determined before or
    at the first customer, and the corresponding
    “disinfectant contact time”
    (T)
    in minutes.
    If a
    supplier
    applies
    disinfectants
    at
    more
    than
    one
    point
    prior
    to
    the
    first
    customer,
    it
    shall
    determine
    the
    CT
    of each disinfectant sequence before or at the first
    customer
    to
    determine
    the
    total
    percent
    inactivation
    or
    “total
    inactivation
    ratio”.
    In
    determining
    the
    total
    inactivation ratio, the supplier shall determine the
    RDC
    of each disinfection sequence
    and
    corresponding
    contact time before any subsequent disinfection
    application point(s).
    (See “CT~9”)
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “CT,,~,9” is the CT value required for 99.9 percent
    (3-
    log) inactivation of Giardia lamblia cysts.
    CT999 for a
    variety of disinfectants and conditions appear in
    Tables 1.1-1.6,
    2..
    and 3.1 of Section 611.Appendix B.
    (See “Inactivation Ratio”.)
    BOARD NOTE:
    Derived from the definition of “CT”
    in 40
    CFR 141.2
    (1992).
    “Coagulation” means a process using coagulant chemicals
    and mixing by which colloidal and suspended materials
    are destabilized and agglomerated into flocs.
    BOARD NOTE:
    Derived
    from
    40
    CFR
    141.2
    (1992).
    “Community Water System” or “CWS” means a public water
    system
    (PWS) that serves at least 15 service
    connections used by year—round residents or regularly
    serves at least 25 year—round residents.
    BOARD
    NOTE:
    Derived from 40 CFR 141.2
    (1992).
    This
    U
    U ~
    6

    20
    definition differs slightly from that of Section 3.05
    of the Act.
    “Compliance
    cycle”
    means
    the
    nine—year
    calendar
    year
    cycle
    during
    which
    public
    water
    systems
    (PWS5)
    must
    monitor.
    Each compliance cycle consists of three
    three—year compliance periods.
    The first calendar
    cycle
    begins
    January
    1,
    1993,
    and
    ends
    December
    31,
    2001;
    the
    second
    begins
    January
    1,
    2002
    and
    ends
    December
    31,
    2010;
    the
    third
    begins
    January
    1,
    2011,
    and ends December 31,
    2019.
    BOARD
    NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Compliance
    period”
    means
    a
    three—year
    calendar
    year
    period within a compliance cycle.
    Each compliance
    cycle
    has
    three
    three—year
    compliance
    periods.
    Within
    the first compliance cycle, the first compliance period
    runs
    from
    January
    1,
    1993,
    to
    December
    31,
    1995;
    the
    second
    from
    January
    1,
    1996,
    to
    December
    31,
    1998;
    the
    third from January
    1,
    1999,
    to December 31,
    2001.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Confluent growth” means a continuous bacterial growth
    covering the entire filtration area of a membrane
    filter or a portion thereof,
    in which bacterial
    colonies are not discrete.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Contaminant”
    means
    any
    physical,
    chemical,
    biological
    or radiological substance or matter in water.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Conventional filtration treatment” means
    a series of
    processes including coagulation, flocculation,
    sedimentation and filtration resulting in substantial
    particulate
    removal.
    BOARD
    NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Diatomaceous earth filtration” means a process
    resulting in substantial particulate removal in which:
    A
    precoat
    cake
    of
    diatomaceous
    earth
    filter
    media
    is
    deposited on a support membrane
    (septum); and
    While the water
    is filtered by passing through the
    cake on the septum, additional filter media known
    as
    body
    feed is continuously added to the feed
    water to maintain the permeability of the filter
    cake.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Direct filtration” means a series of processes
    0 tL:.2-0362

    21
    including coagulation and filtration but excluding
    sedimentation resulting in substantial particulate
    removal.
    BOARD
    NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Disinfectant” means any oxidant, including but not
    limited to chlorine, chlorine dioxide, chloramines and
    ozone added to water in any part of the treatment or
    distribution process, that is intended to kill or
    inactivate pathogenic microorganisms.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Disinfectant contact time” or “T” means the time in
    minutes that it takes for water to move from the point
    of disinfectant application or the previous point of
    RDC
    measurement
    to
    a
    point
    before
    or
    at
    the
    point
    where
    RDC is measured.
    Where only one RDC is measured, T is the time in
    minutes
    that
    it
    takes
    for water to move from the
    point
    of disinfectant application to a point
    before or at where
    RDC
    is measured.
    Where more than one RDC is measured, T is:
    For
    the
    first
    measurement
    of
    RDC,
    the
    time
    in
    minutes
    that
    it
    takes
    for
    water
    to
    move
    from
    the
    first
    or
    only
    point
    of
    disinfectant
    application
    to
    a
    point
    before
    or
    at
    the
    point
    where
    the
    first
    RDC
    is
    measured
    and
    For subsequent measurements of RDC, the time
    in minutes that it takes for water to move
    from the previous RDC measurement point to
    the RDC measurement point for which the
    particular T is being calculated.
    T in pipelines must be calculated based on “plug
    flow” by dividing the internal volume of the pipe
    by the maximum hourly flow rate through that pipe.
    T within mixing basins and storage reservoirs must
    be determined by tracer studies or an equivalent
    demonstration.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Disinfection” means a process that inactivates
    pathogenic organisms in water by chemical oxidants or
    equivalent agents.
    BOARD
    NOTE:
    Derived from 40 CFR 141.2
    (1992).
    Uk~
    Qio3

    22
    “Distribution system” includes all points downstream of
    an “entry point” to the point of consumer ownership.
    “Domestic or other non—distribution system plumbing
    problem” means a coliform contamination problem in a
    PWS with more than one service connection that is
    limited to the specific service connection from which
    the coliform—positive sample was taken.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Dose equivalent” means the product of the absorbed
    dose from ionizing radiation and such factors as
    account for differences in biological effectiveness due
    to the type of radiation and its distribution in the
    body as specified by the International Commission on
    Radiological Units and Measurements
    (ICRU).
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Entry point” means a point just downstream of the
    final treatment operation,
    but upstream of the first
    user and upstream of any mixing with other water.
    If
    raw water is used without treatment, the “entry point”
    is the raw water source.
    If a PWS receives treated
    water from another PWS, the “entry point” is a point
    just downstream of the other PWS, but upstream of the
    first user on the receiving PWS, and upstream of any
    mixing with other water.
    “Filtration” means a process for removing particulate
    matter from water by passage through porous media.
    BOARD
    NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Flocculation” means a process to enhance agglomeration
    or collection of smaller floc particles into larger,
    more easily settleable particles through gentle
    stirring by hydraulic or mechanical means.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “GC” means “gas chromatography”
    or “gas-liquid phase
    chromatography”.
    “GC/MS” means gas chromatography (GC)
    followed by mass
    spectrometry
    (MS).
    “Gross alpha particle activity” means the total
    radioactivity due to alpha particle emission as
    inferred from measurements on a dry sample.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Gross beta particle activity” means the total
    radioactivity due to beta particle emission as inferred
    from measurements on a dry sample.
    0
    IL~.2-036~

    23
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Groundwater under the direct influence of surface
    water” is as determined in Section 611.212.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “GWS” means “groundwater system”,
    a public water supply
    (PWS)
    that uses only groundwater sources.
    BOARD NOTE:
    Drawn from 40 CFR 141.23(b) (2)
    &
    141.24(f)(2) note
    (1992).
    “Halogen” means one of the chemical elements chlorine,
    bromine or iodine.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “HPC” means “heterotrophic plate count”, measured as
    specified in Section 611.531(c).
    “Inactivation Ratio”
    (Ai) means:
    Ai
    =
    CT~~,~/CT999
    The sum of the inactivation ratios,
    or “total
    inactivation ratio”
    (B)
    is calculated by adding
    together the inactivation ratio for each
    disinfection sequence:
    B
    =
    SUM(Ai)
    A total inactivation ratio equal to or greater
    than 1.0
    is assumed to provide a 3—log
    inactivation of Giardia lamblia cysts.
    BOARD
    NOTE:
    Derived from the definition of “CT”
    in 40 CFR 141.2
    (1992).
    “Initial compliance period” means the three—year
    compliance period that begins January
    1,
    1993,
    excePt
    for the NCLs for dichloromethane, 1,2,4—trichloro-
    benzene,
    1,1 ,2—trichloroethpne.
    benzolalpyrene.
    dalapon. di(2-ethvlhexyl)adinate. di (2—ethylhexyl)
    phthalate,
    dinoseb. diquat, endothall.
    endrin,
    aly~hosate. hexachlorobenzene. hexachlorocvclo~enta—
    diene,
    oxamyl. picloram,
    siniazjne. 2,3,7.8—TCDD,
    antimony. beryllium, cyanide, nickel. and thallium as
    they ai~1vto suppliers whose supplies have fewer than
    150 service connections.
    for which it means the three—
    year compliance period that begins on January 1,
    1996.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992). as
    amended
    at
    57
    Fed.
    Req.
    31838
    (July
    17,
    19921..
    n
    u~_
    ~j1.;UL)

    24
    “L” means “liter”.
    “Legionella” means
    a genus of bacteria, some species of
    which have caused a type of pneumonia called
    Legionnaires Disease.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Man—made beta particle and photon emitters” means all
    radionuclides emitting beta particles and/or photons
    listed in Maximum Permissible Body Burdens and Maximum
    Permissible Concentrations of Radionuclides in Air and
    in Water for Occupational Exposure, NCRP Report Number
    22,
    incorporated by reference in Section 611.102,
    except the daughter products of thorium—232, uranium—
    235 and uranium-238.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Maximum contaminant level”
    (“HCL”) means the maximum
    permissible level of a contaminant in water that
    is
    delivered to any user of a public water system.
    See
    Section 611.12?
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Maximum Total Trihalomethane Potential” or “MTP” means
    the maximum concentration of total trihalomethanes
    (TTHMs)
    produced in a given water containing a
    disinfectant residual after
    7
    days at a temperature of
    250
    C or above.
    BOARD
    NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “MFL” means millions of fibers per liter larger than 10
    micrometers.
    BOARD NOTE:
    Derived from 40 CFR 141.23(a) (4)
    (i)
    (1992).
    “mg” means milligrams
    (1/1000th of a gram).
    “mg/L” means milligrams per liter.
    “Mixed system” means a PWS that uses both groundwater
    and surface water sources.
    BOARD
    NOTE:
    Drawn from 40 CFR 141.23(b) (2) and
    141.24(f)(2) note
    (1992).
    “MUG”
    means 4-methyl-umbelliferyl-beta-d-glucuronide.
    “Near the first service connection” means at one of the
    20 percent of all service connections in the entire
    system that are nearest the public water system
    (PWS)
    treatment facility,
    as measured by water transport time
    within the distribution system.
    BOARD
    NOTE:
    Derived from 40 CFR 141.2
    (1992).
    O~L~2-o366

    25
    “nm” means nanometer (1/1,000,000,000th of a meter).
    “Non—community
    water
    system”
    or
    “NCWS”
    or
    “non—CWS”
    means a public water system
    (PWS)
    that is not
    ,a
    community water system
    (CWS).
    BOARD
    NOTE:
    Derived from the definition of “public
    water system” in 40 CFR 141.2
    (1992).
    “Non—tranaient non—community water system” or “NTNCWS”
    means a public water system
    (PWS) that is not a
    community water system
    (CWS)
    and that regularly serves
    at least 25 of the same persons over
    6 months per year.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “NPDWR” means “national primary drinking water
    regulation”.
    “NTU” means
    “nephelometric turbidity units”.
    “Old MCL” means one of the inorganic maximum
    contaminant levels
    (NCLs), codified at Section 611.300,
    or organic MCLs,
    codified at Section 611.310, including
    any marked as “additional state requirements.”
    BOARD NOTE:
    Old MCLs are those derived prior to the
    implementation of the USEPA “Phase II” regulations.
    The Section 611.640 definition Of this term, which
    applies only to Subpart 0 of this Part,
    differs from
    this definition in that that definition does not
    include the Section 611.300 inorganic NCL5.
    “P—A Coliform Test” means “Presence—Absence Coliform
    Test”.
    “Performance evaluation sample” means a reference
    sample provided to a laboratory for the purpose of
    demonstrating that the laboratory can successfully
    analyze the sample within limits of performance
    specified by the Agency;
    or, for bacteriological
    laboratories, Public Health; or,
    for radiological
    laboratories, the Illinois Department of Nuclear
    Safety.
    The true value of the concentration of the
    reference material is unknown to the laboratory at the
    time of the analysis.
    BOARD
    NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Person” means an individual,
    corporation,
    company,
    association, partnership,
    State, unit of local
    government or federal agency.
    BOARD NOTE:
    Derived from 40 CFR 141
    2
    (1992).
    “Phase I” refers to that group of chemical contaminants
    and the accompanying regulations promulgated by USEPA
    01 L~.2-0367

    26
    on July 8,
    1987,
    at 52 Fed. Reg.
    25712.
    “Phase II” refers to that group of chemical
    contaminants and the accompanying regulations
    promulgated by USEPA on January 30,
    1991,
    at 56 Fed.
    Reg.
    3578.
    “Phase IIB” refers to that group of chemical
    contaminants and the accompanying regulations
    promulgated by USEPA on July 1,
    1991,
    at 56 Fed. Reg.
    30266.
    “Phase V” refers to that group of chemical contaminants
    promul~atedby USEPA on July 17,
    1992. at 56 Fed. Req.
    31776.
    “Picocurie” or “pCi” means the quantity of radioactive
    material producing 2.22 nuclear transformations per
    minute
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Point of disinfectant application”
    is the point at
    which the disinfectant is applied and downstream of
    which water is not subject to recontamination by
    surface water runoff.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Point—of-entry treatment device” is a treatment device
    applied to the drinking water entering a house or
    building for the purpose of reducing contaminants in
    the drinking water distributed throughout the house or
    building.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Point—of—use treatment device” is a treatment device
    applied to a single tap used for the purpose of
    reducing contaminants in drinking water at that one
    tap.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Public Health” means the Illinois Department of Public
    Health.
    BOARD NOTE:
    The Department of Public Health
    (“Public
    Health”) regulates non—community water supplies (“non—
    CWS5”,
    including non—transient, non—community water
    supplies
    (“NTNCWSs”) and transient non—community water
    supplies (“transient non—CWSs”)).
    For the purposes of
    regulation of supplies by Public Health by reference to
    this Part,
    “Agency” shall mean Public Health.
    “Public water system” or “PWS” means a system for the
    provision to the public of piped water for human
    O~Lt.2 0.368

    27
    consumption,
    if such system has at least fifteen
    service connections or regularly serves an average of
    at least 25 individuals daily at least 60 days out of
    the year. A PWS
    is either a community water system
    (CWS)
    or a non-community water system (non—CWS).
    Such
    term includes:
    Any collection, treatment,
    storage and
    distribution facilities under control of the
    operator of such system and used primarily in
    connection with such system, and;
    Any collection or pretreatment storage facilities
    not under such control that are used primarily in
    connection with such system.
    BOARD
    NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Reliably and consistently” below a specified level for
    a contaminant means an Agency determination based on
    analytical results following the initial detection of a
    contaminant to determine the qualitative condition of
    water from an individual sampling point or source.
    The
    Agency shall base this determination on the consistency
    of analytical results, the degree below the MCL, the
    susceptibility of source water to variation, and other
    vulnerability factors pertinent to the contaminant
    detected that may influence the quality of water.
    BOARD NOTE:
    Derived from 40 CFR 141.23(b) (9),
    141.24(f) (11)
    (ii),
    and 141.24(f)(11)(iii)
    (1992).
    “Rem” means the unit of dose equivalent from ionizing
    radiation to the total body or any internal organ or
    organ system.
    A “millirem (mrem)” is 1/1000 of a rem.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Repeat compliance period” means a compliance period
    that begins after the initial compliance period.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Representative” means that a sample must reflect the
    quality of water that is delivered to consumers under
    conditions when all sources required to supply water
    under normal conditions are in use and all treatment is
    properly operating.
    “Residual disinfectant concentration” (“RDC” or “C” in
    CT calculations) means the concentration of
    disinfectant measured in ntg/L in a representative
    sample of water.
    For purposes of the requirement of
    Section 611.241(d)
    of maintaining a detectable
    RDC
    in
    the distribution system,
    “RDC” means a residual of free
    or combined chlorine.
    UI
    4c~Uj69

    28
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “SDWA” means the Public Health Service Act, as amended
    by the Safe Drinking Water Act, Pub. L.
    93-523,
    42
    U.S.C.
    300f et seq.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Sanitary survey” means an onsite review of the water
    source, facilities,
    equipment,
    operation and
    maintenance of a public water system
    (PWS)
    for the
    purpose of evaluating the adequacy of such source,
    facilities, equipment,
    operation and maintenance for
    producing and distributing safe drinking water.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Sedimentation” means a process for removal of solids
    before filtration by gravity or separation.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “SEP” means special exception permit (Section 611.110).
    “Slow sand filtration” means a process involving
    passage of raw water through a bed of sand at low
    velocity (generally less than 0.4 meters per hour
    (rn/h)) resulting in substantial particulate removal by
    physical and biological mechanisms.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “SOC” or “Synthetic organic chemical contaminant”
    refers to that group of contaminants designated as
    “SOCs”, or “synthetic organic chemicals” or “synthetic
    organic contaminants”,
    in USEPA regulatory discussions
    and guidance documents.
    “SOCs” include alachlor,
    aldicarb. aldicarb sulfone, aldicarb sulfoxide,
    atrazine, benzoal pyrene, carbofuran,
    chiordane,
    dalapon,
    dibromoethylene (ethylene dibromide or EDB),
    dibromochioropropane
    (DBCP),
    di (2-ethvlhexvl adipate,
    di (2-ethylhexyl)phthalate. dinoseb. diquat.
    endothall,
    endrin,
    glvtthosate. heptachior, heptachlor epoxide,
    hexachlorobenzene, hexachlorocyclo~entadiene. lindane,
    methoxychior, oxamyl
    pentachloro~henol.~iclorain.
    siinazine. toxaphene, polychiorinated biphenyls .(PCB5),
    2,4—D,
    2,3.,7,8—TCDD. and 2,4,5—TP.
    “Source” means a well, reservoir, or other source of
    raw water.
    “Standard sample” means the aliquot of finished
    drinking water that is examined for the presence of
    coliform bacteria.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    01
    f.~.2-O37O

    29
    “Supplier of water” or “supplier” means any person who
    owns or operates a public water system
    (PWS).
    This
    term includes the “official custodian”.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Surface water” means all water that is open to the
    atmosphere and subject to surface runoff.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “SWS” means “surface water system”,
    a public water
    supply
    (PWS)
    that uses only surface water sources,
    including “groundwater under the direct influence of
    surface water”.
    BOARD NOTE:
    Drawn from 40 CFR 141.23(b) (2) and
    141.24(f)(2) note
    (1992).
    “System with
    a single service connection” means a
    system that supplies drinking water to consumers via a
    single service line.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Too numerous to count” means that the total number of
    bacterial colonies exceeds 200 on a 47—mm diameter
    membrane filter used for coliform detection.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Total trihalomethanes” or “TTHN” means the
    sum
    of the
    concentration of trihalomethanes
    (THNs), in milligrams
    per liter
    (mg/L), rounded to two significant figures.
    BOARD NOTE:
    Derived from the definition of “total
    trihalomethanes” in 40 CFR 141.2
    (1992) .See the
    definition of THMs for a listing of the four compounds
    that USEPA considers TTHM5 to comprise.
    “Transient, non—community water system” or “transient
    non-CWS” or “TNCWS” means a public water system
    (PWS)
    that is neither a community water system
    (“CWS”) nor a
    non—transient, noncommunity water system
    (“NTNCWS”).
    BOARD
    NOTE:
    The federal regulations apply to all
    “public water systems”, which are defined as all
    systems having at least
    15 service connections or
    regularly serving water to at least
    25 persons.
    See 42
    U.S.C. §300f(4).
    The Act mandates that the Board and
    the Agency regulate “public water supplies”, which it
    defines as having at least
    15 service connections or
    regularly serving 25 persons daily at least
    60 days per
    year.
    See Ill. Rev.
    Stat.
    1991 ch.
    111½, par. 1003.28
    (415 ILCS 5/3.28.
    The Department of Public Health
    regulates transient non—community water systems.
    “Treatment” means any process that changes the
    physical, chemical, microbiological, or radiological
    0
    iL~2-037
    I

    30
    properties of water,
    is under the control of the
    supplier, and is not a “point of use” or “point of
    entry treatment device” as defined in this Section.
    “Treatment” includes, but is not limited to aeration,
    coagulation,
    sedimentation,
    filtration,
    activated
    carbon treatment, disinfection, and fluoridation.
    “Trihalomethane” or “THM” means one of the family of
    organic compounds, named as derivatives of methane,
    in
    which three of the four hydrogen atoms in methane are
    each substituted by a halogen atom in the molecular
    structure.
    The THM5 are:
    Trichloromethane (chloroform),
    Dibromochloromethane,
    Bromodichloromethane and
    Tribromomethane
    (bromoform)
    BOARD NOTE:
    Derived from the definitions of
    “total trihalomethanes” and “trihalomethanes” in
    40 CFR 141.2
    (1992).
    “j.~g”means micrograms
    (1/1,000,000th of a gram).
    “USEPA” means the U.S. Environmental Protection Agency.
    “Virus” means a virus of fecal origin that is
    infectious to humans by waterborne transmission.
    “VOC” or “volatile organic chemical contaminant” refers
    to that group of contaminants designated as “VOCs”,
    or
    “volatile organic chemicals” or “volatile organic
    contaminants”, in USEPA regulatory discussions and
    guidance documents.
    “VOCs” include benzene, dichioro—
    methane, tetrachloromethane (carbon tetrachloride),
    trichloroethylene, vinyl chloride,
    1,1,1—trichloroethane (methyl chloroform),
    1,1—di—
    chloroethylene,
    1, 2—dichloroethane,
    cis-1,2-dichloro-
    ethylene, ethylbenzene, monochlorobenzene, o—dichloro—
    benzene, styrene,
    1,2,4—trichlorobenzene.
    1.1,2—
    trichloroethane, tetrachioroethylene,
    toluene,
    trans—
    1, 2-dichloroethylene, xylene, and 1,2—dichioropropane.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Waterborne disease outbreak” means the significant
    occurrence of acute infectious illness,
    epidemiologically associated with the ingestion of
    water from a public water system
    (PWS) that is
    deficient in treatment, as determined by the

    31
    appropriate local or State agency.
    BOARD NOTE:
    Derived from 40 CFR 141.2
    (1992).
    “Wellhead Protection Program” means the wellhead
    protection program for the State of Illinois, approved
    by USEPA under Section 1428 of the SDWA.
    BOARD NOTE:
    Derived from 40 CFR 141.71(b)
    (1992).
    The
    wellhead protection program will include the
    “groundwater protection needs assessment” under Section
    17.1 of the Act, and regulations to be adopted in 35
    Ill.
    Adrn. Code 615 et seq.
    (Source:
    Amended at
    17 Ill.
    Reg.
    ________,
    effective
    ___________
    ____________________________
    )
    Section 611.102
    Incorporations by Reference
    a)
    Abbreviations.
    The following abbreviated names are
    used in this Part to refer to materials incorporated by
    reference:
    “AEPA-l Polymer”
    is available from Advanced
    Polymer Systems.
    “AsbcGtoo Methodo” mcan~“Analytical Method for
    Dctcrmination of Aobectoo Fibero in Water”,
    available from NTIS.
    “ASTM” means American Society for Testing and
    Materials
    “Atomic Absorption—Platform Furnace Method” or
    “AA—Platform Furnace Method” means “Determination
    of Trace Elements by Stabilized Temperature
    Graphite Furnace Atomic Absorption Spectroiuetry
    --
    Method 200.9”
    “Indigo method”
    is as described in “Standard
    Methods”, 17th Edition, Method 4500-03 B.
    “Inductively Coupled Plasma—Mass Spectrometry
    Method” or “ICP—MS Method” means “Determination of
    Trace Elements in Water and Wastes by Inductively—
    Coupled Plasma—Mass Spectrometry
    —-
    Method 200.8”
    “Inductively Coupled Plasma Method 200.7” or “ICP
    Method 200.7” means “Inductively Coupled Plasma—
    Atomic Emission Spectrometric Method for Trace
    Element Analysis in Water and Wastes
    ——
    Method
    200.7, with appendix”~ See 40 CFR 136, Appendix
    C.

    32
    “Inductively Coupled Plasma Method 200.7, Rev.
    3.2” or “ICP Method 200.7,
    Rev. 3.2” means
    “Determination of Metals and Trace Elements in
    Water and Wastes by Inductively Coupled Plasma-
    Atomic Emission Spectrometry
    --
    Method 200.7,
    Revision 3.2”
    See 40 CFR 136, Appendix C.
    “Ion Chromatography Method 300.0” means
    “Determination of Inorganic Ions in Water by Ion
    Chromatography
    --
    Method 300.0”
    “Microbiological Methods” means “Microbiological
    Methods for Monitoring the Environment, Water and
    Wastes”, available from NTIS.
    “MMO—MUG
    Test” means “minimal medium ortho-
    nitrophenyl-beta-d-galactopyranoside-4-methyl-
    umbelliferyl-beta-d—glucuronide test”, available
    from Environetics, Inc.
    “NCRP” means “National Council on Radiation
    Protection”.
    “NTIS” means “National Technical Information
    Service”.
    “Radiochemical
    Methods”
    means
    “Interim
    Radiochemical Methodology for Drinking Water”,
    available
    from
    NTIS.
    “Standard Methods”, means “Standard Methods for
    the Examination of Water and Wastewater”,
    available from the American Waterworks
    Association.
    “Technicon Methods” means “Fluoride in Water and
    Wastewater”,
    available
    from
    Technicon.
    “USEPA Asbestos Methods” means “Analytical Method
    for Determination of Asbestos Fibers in Water”.
    available from NTIS.
    “USEPA Dioxin and Furan Method 1613” means “Tetra—
    through Octa— Chlorinated Dioxins and Furans by
    Lsoto~eDilution, available from USEPA—OST.
    “USEPA Environmental Metals Methods” means
    “Methods for the Determination of Metals in
    Environmental Samples”. available from NTIS.
    “USEPA Inorganic Methods” means “Methods for
    Chemical Analysis of Water and Wastes”, available
    U
    I
    !4~037L~

    33
    from NTIS and ORD Publications.
    “USEPA Ion ChromatograPhy Method 300.0” means
    “Method 300.0, Determination of Inorganic Anions
    in Water by Ion Chromatography”. available from
    USEPA-ENSL.
    “USEPA Organic Methods” means “Methods for the
    Determination of Organic Compounds in Finished
    Drinking Water and Raw Source Water”, September.
    1986, available from NTIS and USEPA—EMSL. for the
    ~ur~oses of Section 611.647 only
    ,
    and “Methods
    for the Determination of Organic Compounds in
    Drinking Water”, December,
    1988, available from
    NTIS and ORD Publications, for the purposes of
    Sections 611.646 and 611.648.
    “USGS Methods” means “United Ctatc~Ceological
    Survey Methods for Determination of Inorganic
    Substances in Water and Fluvial Sediments”~
    available from USGS.
    b)
    The Board incorporates the following publications by
    reference:
    Access Analytical Systems,
    Inc.,
    See Environetics,
    Inc.
    ASTN.
    American Society for Testing and Materials,
    1976 Race Street, Philadelphia, PA
    19103
    215/299—5585:
    ASTM Method D511-88A and B, “Standard Test
    Methods for Calcium and Magnesium in Water”,
    approved 1988.
    ASTN Method D515-88A,
    “Standard Test Methods
    for Phosphorus in Water”, approved 1988.
    ASTN Method D858-88,
    “Standard Test Methods
    for Manganese in Water”,
    approved August 19,
    1988.
    ASTM Method D859-88, Standard Test Method for
    Silica in Water”, approved.~l988.
    ASTM Method 1067-88B, “Standard Test Methods
    for Acidity or Alkalinity in Water”, approved
    1988).
    ASTN Method D1125-82B,
    “Standard Test Methods
    for Electrical Conductivity and Resistivity
    0
    ~:.2-0375

    34
    of Water”, approved October 29,
    1982.
    ASTM
    Method D1179-72A or B “Standard Test
    Methods for Fluoride in Water”, approved July
    28,
    1972,
    reapproved 1978.
    ASTM Method D1293-84B “Standard Test Methods
    for pH of Water”, approved October 26,
    1984.
    ASTM Method D1428-64,
    “Standard Test Methods
    for Sodium and Potassium in Water and Water-
    Formed Deposits by Flame Photometry”,
    approved August 31,
    1964, reapproved 1977.
    ASTM Method D1688-90A or C,
    “Standard Test
    Methods for Copper in Water”, approved 1990.
    AETIf
    Method D1839-58a,
    “Standard Tcct Method
    for Turbidity of Water”, approved June 24,
    I
    flOO
    .J..
    —,
    ‘—,
    ‘-.
    ASTM Method D2036-89A or B,
    “Standard Test
    Methods for Cyanide in Water”,
    approved 1989.
    ASTM Method D2459-72, “Standard Test Method
    for Gamma Spectrometry in Water,” 1975,
    reapproved 1981, discontinued 1988.
    ASTM Method D2907-83,
    “Standard Test Methods
    for Microquantities of Uranium in Water by
    Fluorometry”, approved May 27,
    1983.
    ASTM Method D2972-88A or B, “Standard Test
    Methods for Arsenic
    in Water”, approved 1988.
    ASTN Method D3223-86,
    “Standard Test Method
    for Total Mercury in Water”, approved
    February 28,
    1986.
    ASTM Method D3559-85D,
    “Standard Test Methods
    for Lead in Water”, approved 1985.
    ASTM Method D3645-84B, “Standard Test Methods
    for Beryllium in Water. Method B--Atomic
    Absorption, Graphite Furnace”, approved Jan.
    27,
    1984.
    ASTN Method D3697—87,
    “Standard Test Method
    for Antimony in Water”, a~~roved1987.
    ASTN Method D3859-88, “Standard Test Methods
    for Selenium in Water”, approved June 24,
    Cfl~~2-0376

    35
    1988.
    ASTM Method D3867-90, “Standard Test Methods
    for Nitrite-Nitrate in Water”, approved
    January 10,
    1990.
    ASTN Method 4327-88, “Standard Test Method
    for Anions in Water by Ion Chromatography”,
    approved 1988.
    American Waterworks Association et al.,
    6666 West
    Quincy Ave.,
    Denver, CO
    80235
    (303)
    794—7711:
    Standard Methods for the Examination of Water
    and Wastewater, 13th Edition,
    1971.
    Method 302, Gross Alpha and Gross Beta
    Radioactivity in Water
    (Total, Suspended
    and Dissolved).
    Method 303, Total Radioactive Strontium
    and Strontium 90 in Water.
    Method 304, Radium in Water by
    Precipitation.
    Method 305, Radium 226 by Radon in Water
    (Soluble, Suspended and Total).
    Method 306, Tritium in Water.
    Standard Methods for the Examination of Water
    and Wastewater, 14th Edition,
    1976.
    Method 214A, Turbidity, Nephelometric
    Method
    --
    Nephelometric Turbidity Units
    (for the purposes of Section 611.560
    turbidity onlyl.
    Methods 320 and 320A,
    Sodium, Flame
    Photometric Method.
    Method 412D,
    Cyanide,
    ~
    Method.
    Standard Methods for the Examination of Water
    and Wastewater, 16th Edition,
    1985.
    Method 212, Temperature.
    Method 214A, Turbidity, Nephelometric
    Method
    --
    Nephelometric Turbidity Units
    0377

    36
    (for the purposes of Section 611.631
    microbiological only).
    Method 303A, Determination of Antimony,
    etc. by Direct Aspiration into an Air-
    Acetylene Flame.
    Method 303C, Determination of Aluminum-,
    ‘l-c., by Direct Acpiration into a
    trouci Oxide—Acetylene name.
    Method 303E, Determination of Arsenic
    and Selenium by Conversion to Their
    Hydrides by Sodium Borohydride Reagent
    and Aspiration into an Atomic Absorption
    Atomizer.
    Method 303F, Determination of Mercury by
    the Cold Vapor Tcchniquc.
    Method 304, Determination of Micro
    Quantities of Aluminum,
    etc. by
    Electrothermal Atomic Absorption
    Spectrometry.
    Method 307A, Arsenic, Atomic Absorption
    Spectrophotometric Method.
    Method 307B, Arsenic, Silver Diethyldi—
    thiocarbamate
    Method.
    Method 408C,
    Chlorine (Residual),
    Amperometric Titration Method.
    Method 408D,
    Chlorine (Residual),
    DPD
    Ferrous
    Titrimetric
    Method.
    Method 408E,
    Chlorine (Residual),
    DPD
    Colorimetric Method.
    Method 408F,
    Chlorine (Residual),
    Leuco
    Crystal
    Violet
    Method.
    Method 410B, Chlorine Dioxide,
    Amperometric Method.
    Method 410C, Chlorine Dioxide, DPD
    Method
    (Tentative).
    Method 412D, Cyanide,
    Coloriinctric
    Method.
    0~
    L~2-ij378

    37
    Method 413A, Fluoride, Preliminary
    Distillation Step.
    Method 413B,
    Fluoride, Electrode Method.
    Method 413C, Fluoride, SPADNS Method.
    Method 413E, Fluoride, Complexone
    Method.
    Method 415C, Nitrogen (Nitrate),
    Cadmium
    Reduction Method.
    Method 41SF, Nitrogen
    (Nitrate),
    Automated Cadmium Reduction Method.
    Method 423, pH Value.
    Method 907A,
    Pour Plate Method.
    Method 908, Multiple Tube Fermentation
    Technique for Members of the Coliform
    Group.
    Method 908A, Standard Coliform Multiple—
    Tube (MPN)
    Tests.
    Method 908B, Application of Tests to
    Routine Examinations.
    Method 908C, Fecal Coliform
    MPN
    Procedure.
    Method 908D, Estimation of Bacterial
    Density.
    Method 908E, Presence—Absence
    (P-A)
    Coliform Test (Tentative).
    Method 909, Membrane Filter Technique
    for Members of the Coliform Group.
    Method 909A,
    Standard Total Coliform
    Membrane Filter Procedure.
    Method 909B, Delayed Incubation Total
    Coliform Procedure.
    Method 909C,
    Fecal Coliform Membrane
    Filter Procedure.
    Standard Methods for the Examination of Water
    o;
    ~2-0379

    38
    and Wastewater,
    17th Edition,
    1989.
    Method 2320, Alkalinity.
    Method 2510,
    Conductivity.
    Method 2550, Temperature.
    Method 3111 B, Metals by Flame Atomic
    Absorption Spectroiuetry, Direct Air-
    Acetylene Flame Method.
    Method 3111 D, Metals by Flame Atomic
    Absorption Spectrometry, Direct Nitrous
    Oxide-Acetylene Flame Method.
    Method 3112 B, Metals by Cold-Vapor
    Atomic Absorption Spectrometry. Cold-
    Vapor Atomic Absorption S~ectrometric
    Method.
    Method 3113, Metals by Electrothermal
    Atomic Absorption Spectrometry.
    Method 3113 B, Metals by Electrothermal
    Atomic Absorption Spectrometrv.
    Electrothermal Atomic Absorption
    Spectrometric Method.
    Method 3114 B. Metals by Hydride
    Generation/Atomic Absorption
    Spectrometrv, Manual Hydride Generation!
    Atomic Absorption Spectrometric Method.
    Method 3120, Metals by Plasma Emission
    Spectroscopy.
    Method 3500-Ca D, Calcium, EDTA
    Titrimetric Method.
    Method 4110, Determination of Anions by
    Ion Chromatography.
    Method 4500-CN D,
    Cyanide, Titrinietric
    Method.
    Method 4500-CN E,
    Cyanide. Colorimetric
    Method.
    Method 4500-CN F,
    Cyanide, Cyanide-
    Selective Electrode Method.
    t~
    ‘I
    ~
    U

    39
    Method 4500—CN G.
    Cyanide, Cyanides
    Amenable to Chlorination after
    Distillation.
    Method 4500-H~,pH Value.
    Method 4500-NO~E, Nitrogen
    (Nitrate).
    Cadmium Reduction Method.
    Method 4500-NO3
    F, Nitrogen (Nitrate),
    Automated Cadmium Reduction Method.
    Method 4500-03, Ozone
    (Residual),
    Indigo
    Colorimetric Method
    (Proposed).
    Method 4500-P
    F, Phosphorus, Automated
    Ascorbic Acid Reduction Method.
    Method 4500—Si
    D,
    Silica, Molybdosili-
    cate Method.
    Method 4500-Si E, Silica, Heteropoly
    Blue Method.
    Method 4500—Si
    F,
    Silica, Automated
    method for Molybdate-Reactive Silica.
    Advanced Polymer Systems,
    3696 Haven Avenue,
    Redwood City,
    CA
    94063
    415/ 366—2626:
    AEPA-1 Polymer.
    See 40 CFR 141.22(a).
    Also,
    as referenced in ASTM D1889.
    Environetics,
    Inc.,
    21 Business Park Drive,
    Branford, CT
    06405
    800/321—0207:
    NNO-MUG
    tests:
    Colilert P/A or Colilert
    MPN.
    ERDA Health and Safety Laboratory, New York, NY:
    HASL
    Procedure Manual,
    HASL
    300,
    1973.
    See
    40 CFR 141.25(b) (2).
    Millipore Corporation, Waters Chromatography
    Division,
    34 Maple St., Milford, MA
    01757
    800/252—4752:
    Waters Test Method for the Determination of
    Nitrite/Nitrate in Water Using Single Column
    Ion Chromatography, Method B-loll.
    0
    ~2-U38
    I

    40
    NCRP.
    National Council on Radiation Protection,
    7910 Woodmont Ave.,
    Bethesda, MD
    (301)
    657—2652:
    “Maximum Permissible Body Burdens and Maximum
    Permissible Concentrations of Radionuclides
    in Air and in Water for Occupational
    Exposure”,
    NCRP Report Number 22, June
    5,
    1959.
    NTIS.
    National Technical Information Service,
    5285 Port Royal Road, Springfield, VA
    22161
    (703) 487—4600 or
    (800)
    336—4700:
    Analytical Method for Determination of
    Asbestos Fibers in Water,
    EPA-600/4—83—043,
    September,
    1983,
    Doe. No. PB83—260471.
    “Methods of for Chemical Analysis of Water
    and Wastes”,
    J. Kopp and D. HoCce, Third
    Edition, March,
    1979.
    EPA—600/4—79—020,
    Doe. No. PB84—297686.
    “Methods for Chemical Analysis of Water and
    Wastes”,
    March,
    1983,
    Doe. No. PB84—128677,
    for all methods referenced except methods
    180.1
    (turbidity, Section 611.560) and 273.1
    and 273.2
    (sodium, Section 611.630)
    “Methods for Chemical Analysis of Water and
    Wastes”, March,
    1979,
    Doc.
    No. PB84—128677,
    only for methods 180.1
    (turbidity, Section
    611.560)
    and 273.1 and 273.2
    (sodium,
    Section
    611.630).
    “Methods for the Determination of Metals in
    Environmental Samples”.
    1991, Doe. No.
    PB91-
    231498.
    “Methods for the Determination of Organic
    Compounds in Finished Drinking Water and Raw
    Source Water”, EPA/60014—88/039, September,
    1986, Doe.
    No. PB89—22046l.
    (For the
    purposes of Section 611.647 only.)
    “Methods for the Determination of Organic
    Compounds in Drinking Water”, EPA/600/4-
    88/039,
    December,
    1988,
    Doe.
    Nofl. PES9—
    220461PB91—231480 and PB91—l46027.
    (For the
    purposes of Sectione 611.646 and 611.648
    only;
    including Method 515.1, revision 5.0
    and Method 525.1, revision 3.0
    (May,
    1991).)
    (.~r
    0
    (‘I.
    tj~4~.U

    41
    “Microbiological Methods for Monitoring the
    Environment:
    Water and Wastes”,
    R. Bodner
    and
    J.
    Winter,
    1978.
    EPA—600/8—78—017,
    Doe.
    No. PB290-329/LP.
    “Procedures for Radiochernical Analysis of
    Nuclear Reactor Aqueous Solutions”, H.L.
    Krieger and S.
    Gold, EPA—R4—73—014, May,
    1973,
    Doe. No. PB222—l54/7BA.
    ORD Publications,
    CERI,
    EPA, Cincinnati, OH 45268:
    “Methods for Chemical Analysis of Water and
    Wastes”, March,
    1983,
    (EPA—600/4—79—020),
    for
    all methods referenced except methods 180.1
    (turbidity, Section 611.560) and 273.1 and
    273.2
    (sodium, Section 611.630).
    “Methods for Chemical Analysis of Water and
    Wastes”, March,
    1979,
    (EPA—600/4—79—020),
    only for methods 180.1
    (turbidity, Section
    611.560) and 273.1 and 273.2
    (sodium,
    Section
    611.630).
    “Methods for the Determination of Organic
    Compounds in Drinking Water”, EPA/600/4-
    88/039, December,
    1988, Dcc. Nos.
    PB9I—231480
    and PB91—146027.
    (For the purposes
    pf
    Section 611.646 only.)
    See NTIS.
    Orion Research,
    Inc., 529 Main St., Boston, MA
    02129
    800/225—1480:
    Orion Guide to Water and Wastewater Analysis,
    Form WeWWG/5880,
    p.
    5.
    Technicon Industrial Systems, Tarrytown, NY
    10591:
    “Fluoride in Water and Wastewater”,
    Industrial Method #129-71W, December, 1972
    See 40 CFR 141.23(f) (10), footnotes
    6 and 7.
    “Fluoride in Water and Wastewater”, #380-
    75WE,
    February,
    1976.
    See 40 CFR
    141.23(f) (10), footnotes
    6 and 7.
    United States Environmental Protection Agency,
    EMSL,
    EPA, Cincinnati, OH 45268:
    “The Analysis of Trihalomethanes in Drinking
    Waters by the Purge and Trap Method”, Method
    U
    ~2-0383

    42
    501.1.
    See 40 CFR 141,
    Subpart C, Appendix
    C.
    “The Analysis of Trihalomethanes in Drinking
    Water by Liquid/Liquid Extraction,” Method
    501.2.
    See 40 CFR 141,
    Subpart C, Appendix
    C.
    “Inductively Coupled Plasma-Atomic Emission
    Spectrometric Method for Trace Element
    Analysis in Water and Wastes
    —-
    Method 200.7,
    with Appendix to Method 200.7”
    entitled,
    “Inductively Coupled Plasma-Atomic Emission
    Analysis of Drinking Water”
    (Appendix
    200.7A), March 1987
    (EPA/600/4—91/0lo).
    See
    40 CFR 136, Appendix C.
    “Interim Radiochemical Methodology for
    Drinking Water”, EPA-600/4—75—008
    (Revised)
    March,
    1976.
    “Methods for the Determination of Organic
    Compounds in Finished Drinking Water and Raw
    Source Water”--, September,
    1986.
    (For the
    purposes of Section 611.647 only).
    See NTIS.
    “Methods of for Chemical Analysis of Water
    and Wastes”.
    See NTIS and ORD Publications.
    Microbiological Methods for Monitoring the
    Environment, Water and Wastes”.
    See NTIS
    “Procedures for Radiochemical Analysis of
    Nuclear Reactor Aqueous Solutions”.
    See
    NTIS.
    USEPA-OST (United States Environmental Protection
    Agency, Office of Science and Technology). P.O Box
    1407, Arlington, VA
    22313:
    “Tetra- through Octa- Chlorinated Dioxins and
    Furans by Isotope Dilution”.
    United States Environmental Protection Agency,
    Science and Technology Branch, Criteria and
    Standards Division, Office of Drinking Water,
    Washington D.C.
    20460:
    “Guidance Manual for Compliance with the
    Filtration and Disinfection Requirements for
    Public Water Systems using Surface Water
    Sources”, October,
    1989.

    43
    USGS.
    United States Geological Survey,
    1961 Stout
    St.,
    Denver, CO
    80294
    303/844—4169:
    Techniques of Water—Resources Investigation
    of the United States Geological Survey:
    Book
    5,
    Chapter
    A-i,
    “Methods
    for
    Determination of Inorganic Substances in
    Water and Fluvial Sediments”,
    3d ed.,
    Open—File Report 85—495,
    1989.
    c)
    The Board incorporates the following federal
    regulations by reference:
    40 CFR 136, Appendix B and C (1992).
    40 CFR 141.22(a)
    (1992).
    40 CFR 141.23(f) (10),
    footnoteci 6 and 7
    (1992).
    40 CFR 141.24(c), footnote
    6
    (1992).
    40 CFR 141.25(b)(2)
    (1992).
    40 CFR 141, Subpart C, Appendix C
    (1992).
    40 CFR 142, Subpart C
    (1992).
    d)
    This Part incorporates no futurelater amendments or
    editions.
    Amended at 17 Ill. Reg.
    _________,
    effective
    ___________
    (Source:
    ___________
    _____________
    Section 611.110
    Special Exception Permits
    a)
    Unless otherwise specified,
    each Agency determination
    in this Part is to be made by way of a written permit
    pursuant to Section 39(a)
    of the Act.
    Such permit is
    titled a “special exception” permit
    (“SEP”).
    b)
    No person shall cause or allow the violation of any
    condition of a SEP.
    c)
    The supplier may appeal the denial of or the conditions
    of a SEP to the Board pursuant to Section 40 of the
    Act.
    d)
    A SEP may be initiated either:
    1)
    By an application filed by the supplier; or
    0~L~2-U385

    44
    2)
    By the Agency, when authorized by Board
    regulations.
    BOARD NOTE:
    The Board does not intend to mandate
    by any provision of this Part that the Agency
    exercise its discretion and initiate a SEP
    pursuant to subsection
    (d) (2)
    above.
    Rather, the
    Board intends to clarify by this subsection that
    the Agency may opt to initiate a SEP without
    receiving
    a request from the supplier.
    e)
    The Agency shall evaluate a request for a SEP from the
    monitoring requirements of Section 611.646(e) and
    (f)
    (Phase I.
    Phase II, and Phase V VOCs and Phacic II
    VOCo),
    Section 611.646(d), only as to initial
    monitoring for 1.2 ,4—trichlorobenzerie, Section
    611.648(a)
    (for Phase II, Phase IIB. and Phase V SOCs)
    andor Section 611.510(a)
    (for unregulated organic
    contaminants) on the basis of knowledge of previous use
    (including transport, storage, or disposal)
    of the
    contaminant in the watershed or zone of influence of
    the system, as determined pursuant to 35 Ill. Adm. Code
    671:
    1)
    If the Agency determines that there was no prior
    use of the contaminant,
    it shall grant the SEP,
    or
    2)
    If the contaminant was previously used or the
    previous use was unknown, the Agency shall
    consider the following factors:
    A)
    Previous analytical results;
    B)
    The proximity of the system to any possible
    point source of contamination (including
    spills or leaks at or near a water treatment
    facility; at manufacturing, distribution, or
    storage facilities; from hazardous and
    municipal waste land fills;
    or from waste
    handling or treatment facilities) or non-
    point source of contamination (including the
    use of pesticides and other land application
    uses of the contaminant);
    C)
    The environmental persistence and transport
    of the contaminant;
    D)
    How well the water source is protected
    against contamination,
    including whether it
    is
    a SWS or a GWS:
    i)
    A GWS must consider well depth,
    soil
    ~.

    45
    type,
    and well casing integrity, and
    ii)
    A
    SWS
    must consider watershed
    protection; and
    E)
    For Phase II, Phase
    IIB. and Phase V SOC5 and
    unregulated organic contaminants
    (pursuant to
    Section
    611.631
    or
    611.648)
    i)
    Elevated nitrate levels at the water
    source;
    and
    ii)
    The use of PCB5 in equipment used in the
    production,
    storage, or distribution of
    water
    (including pumps,
    transformers,
    etc.); and
    F)
    For Phase I.
    Phase II, and Phase V VOC5 and
    Phacic II VOCs (pursuant to Section 611.646):
    the number of persons served by the PWS and
    the proximity of a smaller system to a larger
    one.
    f)
    If a supplier refuses to provide any necessary
    additional information requested by the Agency,
    or if a
    supplier delivers any necessary information late in the
    Agency’s deliberations on a request, the Agency may
    deny the requested SEP or grant the SEP with conditions
    within the time allowed by law.
    BOARD NOTE:
    Subsection
    (e)
    above is derived from 40
    CFR 141.24(f)(8) and (h)(6)
    (1992).
    Subsection
    (f)
    above is derived from 40 CFR 141.82(d) (2), and
    141.83(b)(2)
    (1992).
    USEPA has reserved the
    discretion, at 40 CFR 142.18
    (1992), to review and
    nullify Agency determinations of the types made
    pursuant to Sections 611.510,
    611.602,
    611.603,
    611.646, and 611.648 and the discretion,
    at 40 CFR
    141.82(i),
    141.83(b) (7), and 142.19
    (1992), to
    establish federal standards for any supplier,
    superseding any Agency determination made pursuant to
    Sections 611.352(d).
    611.352(f),
    611.353(b) (2), and
    611.353(b) (4).
    (Source:
    Amended at
    17 Ill.
    Reg.
    _________,
    effective
    _______
    __________________________ )
    Section 611.130
    Special Requirements for Certain Variances
    and Adjusted Standards
    a)
    Relief from the
    TTHM
    MCL.

    46
    1)
    In granting any variance or adjusted standard to a
    supplier
    that
    is
    a
    CWS
    that
    adds
    a
    disinfectant
    at
    any
    part
    of
    treatment
    and
    which
    provides
    water
    to
    10,000 or more persons on a regular basis from the
    maximum
    contaminant
    level
    for
    TTHM
    listed
    in
    Section 611.310(c), the Board will require
    application of the best available technology
    (BAT)
    identified at subsection
    (a) (4) below for that
    constituent as
    a condition to the relief, unless
    the supplier has demonstrated through
    comprehensive
    engineering
    assessments
    that
    application of BAT is not technically appropriate
    and technically feasible for that system, or it
    would only result in a marginal reduction in
    TTHN
    for that supplier.
    2)
    The
    Board
    will
    require
    the
    following
    as
    a
    condition for relief from the
    TTHN
    MCL where it
    does not require the application of BAT:
    A)
    That the supplier continue to investigate the
    following methods as an alternative means of
    significantly reducing the level of
    TTHM,
    according to a definite schedule:
    i)
    introduction
    of
    off-line
    water
    storage
    for
    THM
    precursor
    reduction;
    ii)
    aeration for
    TTHM
    reduction,
    where
    geography
    and
    climate
    allow;
    iii)
    introduction of clarification, where not
    presently practiced;
    iv)
    use of alternative sources of raw water;
    and
    v)
    use of ozone as an alternative or
    supplemental disinfectant or oxidant,
    and
    B)
    That the supplier report results of that
    investigation to the Agency.
    3)
    The Agency shall petition the Board to reconsider
    or modify a variance or adjusted standard,
    pursuant to 35 Ill. Adm. Code 101.Subpart
    K,
    if
    it
    determines that an alternative method identified
    by the supplier pursuant to subsection
    (a) (2)
    above is technically feasible and would result in
    a significant reduction in TTKM.
    ~
    0
    0
    ~
    J~Ju~

    47
    4)
    Best available technology for TTHM reduction:
    A)
    use of chloramines as an alternative or
    supplemental disinfectant,
    B)
    use of chlorine dioxide as an alternative or
    supplemental disinfectant, or
    C)
    improved existing clarification for
    THM
    precursor reduction.
    BOARD
    NOTE:
    Derived from 40 CFR 142.60
    (1992).
    The restrictions of this subsection
    do not apply to suppliers regulated for
    TTHM
    as an additional state requirement.
    See the
    Board Note to Section 611.301(c).
    b)
    Relief from the fluoride MCL.
    1)
    In granting any variance or adjusted standard to a
    supplier that is a CWS from the maximum
    contaminant level for fluoride listed in Section
    611.301(b),
    the Board will require application of
    the best available technology
    (BAT)
    identified at
    subsection
    (b) (4) below for that constituent as a
    condition to the relief, unless the supplier has
    demonstrated through comprehensive engineering
    assessments that application of BAT is not
    technically appropriate and technically feasible
    for that supplier.
    2)
    The Board will require the following as a
    condition for relief from the fluoride MCL where
    it does not require the application of BAT:
    A)
    That the supplier continue to investigate the
    following methods as an alternative means of
    significantly reducing the level of
    TTHM,
    according to a definite schedule:
    i)
    modification of lime softening;
    ii)
    alum coagulation;
    iii) electrodialysis;
    iv)
    anion exchange resins;
    v)
    well field management;
    vi)
    use of alternative sources of raw water;
    and
    1’
    ~

    48
    vii) regionalization, and
    B)
    That the supplier report results of that
    investigation to the Agency.
    3)
    The Agency shall petition the Board to reconsider
    or modify a variance or adjusted standard,
    pursuant to 35 Ill.
    Athu.
    Code 101.Subpart K,
    if it
    determines that an alternative method identified
    by the supplier pursuant to subsection
    (b) (2)
    above
    is technically feasible and would result in
    a significant reduction in fluoride.
    4)
    Best available technology for fluoride reduction:
    A)
    activated alumina absorption centrally
    applied, and
    B)
    reverse osmosis centrally applied.
    BOARD NOTE:
    Derived from 40 CFR 142.61
    (1992)
    c)
    Relief from an inorganic chemical contaminant, VOC, or
    SOC MCL.
    1)
    In granting to a supplier that is a CWS or NTNCWS
    any variance or adjusted standard from the maximum
    contaminant levels for any VOC or SOC,
    listed in
    Section 611.311(a)
    or
    (c), or for any inorganic
    chemical contaminant, listed in Section 611.301,
    the supplier must have first applied the best
    available technology
    (BAT)
    identified at Section
    611.311(b)
    (VOC5 and SOCs)
    or Section 611.301(c)
    (inorganic chemical contaminants) for that
    constituent, unless the supplier has demonstrated
    through comprehensive engineering assessments that
    application of BAT would achieve only a minimal
    and insignificant reduction in the level of
    contaminant.
    BOARD NOTE:
    USEPA lists BAT for each SOC and VOC
    at 40 CFR 142.62(p)
    (1992). as amended at 57 Fed.
    Req.
    31848
    (July 17.
    1992),
    for the purposes of
    variances and exemptions
    (adjusted standards).
    That list is identical to the list at 40 CFR
    141.61(b), with three exceptions:
    the section
    142.62 listing adds PTA (“PAT”)
    for alachior;
    lists OX for hexachlorobenzene,
    instead of GAC;
    and omits PTA for toxaphene.
    The Board has chosen
    to use the section 141.61(a)
    (Section 611.311) BAT
    listing because we believe USEPA intended
    #,.,.
    ,,
    ~,
    (—p,
    •~
    I
    ~tL.

    49
    consistency and because the preamble at 57
    Fed.
    Req.
    31778—79 indicates that this listing is
    correct as to alachlor and hexachlorobenzene
    (although the preamble at 56 Fed. Reg. 3529
    (Jan.
    30. 1991)
    indicates that it is
    wrong
    as to
    toxaphene).
    2)
    The Board may require any of the following as a
    condition for relief from a MCL listed in Section
    611.301 or 611.311:
    A)
    That the supplier continue to investigate
    alternative means of compliance according to
    a definite schedule, and
    B)
    That the supplier report results of that
    investigation to the Agency.
    3)
    The Agency shall petition the Board to reconsider
    or modify a variance or adjusted standard,
    pursuant to 35 Ill. Adm. Code l0l.Subpart K,
    if
    it
    determines that an alternative method identified
    by the supplier pursuant to subsection
    (c) (2)
    above is technically feasible.
    BOARD
    NOTE:
    Derived from 40 CFR 142.62(a) through
    (e)
    (1992).
    d)
    Conditions requiring use of bottled water or point-of-
    use or point—of—entry devices.
    In granting any
    variance or adjusted standard from the maximum
    contaminant levels for organic and inorganic chemicals
    or an adjusted standard from the treatment technique
    for lead and copper, the Board may impose certain
    conditions requiring the use of bottled water, point-
    of-entry devices, or point—of-use devices to avoid an
    unreasonable risk to health, limited as provided in
    subsections
    (e) and
    (f)
    below.
    1)
    Relief from an MCL.
    The Board may, when granting
    any variance or adjusted standard from the MCL
    requirements of Sections 611.301 and 611.311,
    impose a condition that requires a supplier to use
    bottled water, point-of—use devices, point—of-
    entry devices or other means to avoid an
    unreasonable risk to health.
    2)
    Relief from corrosion control treatment.
    The
    Board may, when granting an adjusted standard from
    the corrosion control treatment requirements for
    lead and copper of Sections 611.351 and 611.352,
    impose a condition that requires a supplier to use
    01
    L~.2-039
    I

    50
    bottled water and point—of—use devices or other
    means,
    but not point—of—entry devices, to avoid an
    unreasonable risk to health.
    3)
    Relief from source water treatment or service line
    replacement.
    The Board may, when granting an
    exemption from the source water treatment and lead
    service line replacement requirements for lead and
    copper under Sections 611.353 or 611.354, impose a
    condition that requires a supplier to use point—
    of—entry devices to avoid an unreasonable risk to
    health.
    BOARD
    NOTE:
    Derived from 40 CFR 142.62(f)
    (1992).
    e)
    Use of bottled water.
    Suppliers that propose to use or
    use bottled water as a condition for receiving a
    variance or an adjusted standard from the requirements
    of Section 611.301 or Section 611.311, or an adjusted
    standard from the requirements of Sections 611.351
    through 611.354 must meet the requirements of either
    subsections
    (e)(l),
    (e)(2),
    (e)(3),
    and (e)(6)
    or
    (e) (4),
    (e) (5) and
    (e) (6)
    below:
    1)
    The supplier must develop a monitoring program for
    Board approval that provides reasonable assurances
    that the bottled water meets all MCLs of Sections
    611.301 and 611.311 and submit
    a description of
    this program as part of its petition.
    The
    proposed program must describe how the supplier
    will comply with each requirement of this
    subsection.
    2)
    The supplier must monitor representative samples
    of the bottled water for all contaminants
    regulated under Sections 611.301 and 611.311
    during the first three-month period that it
    supplies the bottled water to the public, and
    annually thereafter.
    3)
    The supplier shall annually provide the results of
    the monitoring program to the Agency.
    4)
    The supplier must receive a certification from the
    bottled water company as to each of the following:
    A)
    that the bottled water supplied has been
    taken from an approved source of bottled
    water,
    as such is defined in Section 611.101;
    B)
    that the approved source of bottled water has
    conducted monitoring
    in accordance with 21
    0
    L~.2-U392

    51
    CFR 129. 80(g) (1) through (3);
    C)
    and that the bottled water does not exceed
    any MCL5 or quality limits as set out in 21
    CFR 103.35,
    110, and 129.
    5)
    The supplier shall provide the certification
    required by subsection
    (e) (4) above to the Agency
    during the first quarter after it begins supplying
    bottled water and annually thereafter.
    6)
    The supplier shall assure the provision of
    sufficient quantities of bottled water to every
    affected person supplied by the supplier via door-
    to-door bottled water delivery.
    Derived from 40 CFR 142.62(g)
    (1992).
    f)
    Use of point—of-entry devices.
    Before the Board grants
    any PWS a variance or adjusted standard from any
    NPDWR
    that includes a condition requiring the use of
    a point-
    of-entry device, the supplier must demonstrate to the
    Board each of the following:
    1)
    that the supplier will operate and maintain the
    device;
    2)
    that the device provides health protection
    equivalent to that provided by central treatment;
    3)
    that the supplier will maintain the
    microbiological safety of the water at all times;
    4)
    that the supplier has established standards for
    performance, conducted a rigorous engineering
    design review, and field tested the device;
    5)
    that the operation and maintenance of the device
    will account for any potential for increased
    concentrations of heterotrophic bacteria resulting
    through the use of activated carbon, by
    backwashing, post-contactor disinfection, and
    heterotrophic plate count monitoring;
    6)
    that buildings connected to the supplier’s
    distribution system have sufficient devices
    properly installed, maintained, and monitored to
    assure that all consumers are protected; and
    7)
    that the use of the device will not cause
    increased corrosion of lead and copper bearing
    materials located between the device and the tap
    UH4~Ui

    52
    that could increase contaminant levels at the tap.
    BOARD
    NOTE:
    Derived from 40 CFR 142.62(h)
    (1992).
    (Source:
    Amended at 17 Ill. Reg.
    ,
    effective
    _________
    _________________________ )
    SUBPART B:
    FILTRATION
    AND
    DISINFECTION
    Section 611.240
    Disinfection
    a)
    A supplier that uses a surface water source and does
    not provide filtration treatment shall provide the
    disinfection treatment specified in Section 611.241
    beginning December 30,
    1991.
    b)
    A supplier that uses a groundwater source under the
    influence of surface water and does not provide
    filtration treatment shall provide disinfection
    treatment specified in Section 611.241 beginning
    December 30,
    1991,
    or 18 months after the Agency
    determines that the groundwater source is under the
    influence of surface water, whichever is later, unless
    the Agency has determined that filtration is required.
    c)
    If the Agency determines that filtration is required,
    the Agency may, by special exception permit, require
    the supplier to comply with interim disinfection
    requirements before filtration is installed.
    d)
    A system that uses a surface water source that provides
    filtration treatment shall provide the disinfection
    treatment specified in Section 611.242 beginning June
    29,
    1993,
    or beginning when filtration
    is installed,
    whichever is later.
    e)
    A system that uses a groundwater source under the
    direct influence of surface water and provides
    filtration treatment shall provide disinfection
    treatment as specified in Section 611.242 by June 29,
    1993 or beginning when filtration is installed,
    whichever is later.
    f)
    Failure to meet any requirement of the following
    Sections after the applicable date specified in this
    Section is a treatment technique violation.
    BOARD NOTE:
    Derived from 40 CFR 141.72 preamble
    (198-9Z),
    ac amended at 54 Fcd.
    flcg.
    27526, June 29,
    1:989.
    1’’)
    U

    53
    g)
    CWS
    suppliers using groundwater which is not under the
    direct influence of surface water shall provide
    disinfection pursuant to Section 611.241 or 611.242,
    unless the Agency has granted the supplier an exemption
    pursuant to Section 17(b)
    of the Act.
    BOARD
    NOTE:
    This is an additional State requirement.
    (Source:
    Amended
    at
    17
    Ill.
    Reg.
    ________,
    effective
    _________
    SUBPART
    F:
    MAXIMUM
    CONTAMINANT
    LEVELS
    (MCL’ 5)
    Section
    611.300
    Old
    NCLs
    for
    Inorganic
    Chemicals
    a)
    The old MCLs listed in subsection
    (b) below for
    inorganic chemicals apply only to CWS suppliers.
    Compliance with old MCLS for inorganic chemicals is
    calculated pursuant to Section 611.612.
    BOARD
    NOTE:
    Derived from 40 CFR 141. 11(a)
    (1992).
    b)
    The following are the old MCL’S for inorganic
    chemicals,
    with the old NCL for cyanide effective only
    until the revised MCL for cyanide at Section 611.301(a)
    becomes effective:
    Contaminant
    Level, mg/L
    Additional
    State
    Requirement
    (*)
    Arsenic
    0.05
    Cyanide
    0.2
    *
    Iron
    1.0
    *
    Manganese
    0.15
    *
    Zinc
    5.
    *
    BOARD
    NOTE:
    Derived from 40 CFR 141.11(b)
    &
    (c)
    (1992).
    This provision, which corresponds with 40
    CFR 141.11, was formerly the only listing of MCLs
    for inorganic parameters.
    However, USEPA added
    another listing of inorganic MCL5 at 40 CFR 141.62
    at 56 Fed.
    Reg. 3594
    (Jan.
    30,
    1991).
    Following
    the changing USEPA codification scheme creates two
    listings of NCL5:
    one at this Section and one at
    Section 611.301.
    This causes fluoride to appear
    in both the 40 CFR 141.11(b) and 141.62(b)
    listings with the same MCL.
    The Board has deleted
    the corresponding fluoride MCL from this Section
    in favor of that which appears at Section
    611.301(b).
    USEPA adopted a MCL for cyanide at 40
    (flL~.2-0395

    54
    CFR 141.62(b) (13),
    effective January 17,
    1994, at
    57 Fed. Reg.
    31847
    (July 17,
    1992).
    That MCL is
    the same as that at this Section.
    The Board has
    rendered the state MCL at this Section ineffective
    on the date the new federal MCL becomes effective.
    c)
    The occondary old NCL for fluoride io 2.0 mg/L.
    BOARD
    NOTE:
    Derived from 40 CFR 141.11(c)
    (1992) .This
    subsection corresponds with
    40 CFR 141.11(c), the
    substance of which the Board has codified in subsection
    (b)
    above.
    This statement maintains structural parity
    with the federal rules.
    d)
    Nitrate.
    1)
    The Board incorporates by reference 40 CFR
    141.11(d)
    (1992).
    This incorporation includes no
    later editions or amendments.
    2)
    Non-CWSs may exceed the MCL for nitrate to the
    extent authorized by 40 CFR 141.11(d).
    BOARD NOTE:
    Derived from 40 CFR 141.11(d)
    (1992).
    Public Health regulations may impose a nitrate
    limitation requirement.
    Those regulations are at
    77 Ill.
    Adm. Code 900.50.
    e)
    The following supplementary condition applies to the
    concentrationMCLs listed in subsection
    (b) above÷~
    ~jron and manganese:
    1)
    CWS suppliers that serve a population of 1000 or
    less, or 300 service connections or less,
    are
    exempt from the standards for iron and manganese.
    2)
    The Agency may, by special exception permit, allow
    iron and manganese in excess of the MCL if
    sequestration tried on an experimental basis
    proves to be effective.
    If sequestration
    is not
    effective,
    positive iron or manganese reduction
    treatment as applicable must be provided.
    Experimental use of a sequestering agent may be
    tried only if approved by special exception
    permit.
    BOARD
    NOTE:
    This is an additional State
    requirement.
    (Source:
    Amended at 17 Ill. Reg.
    _________,
    effective
    __________________________)
    01
    L~2-O396

    55
    Section 611.301
    Revised MCL5 for Inorganic Chemicals
    a)
    This subsection corresponds with 40 CFR 141.62(a),
    reserved by USEPA.
    This statement maintains structural
    consistency with USEPA rules.
    b)
    The MCLs in the following table apply to CWSs.
    Except
    for fluoride, the MCL5 also apply to NTNCWSs.
    The MCL5
    for nitrate, nitrite and total nitrate and nitrite also
    apply to transient non-CWSs.
    The MCLs for antimony,
    beryllium, cyanide, nickel, and thallium are effective
    January 17,
    1994.
    Contaminant
    NCL
    Units
    Fluoride
    4.0
    mg/L
    Antimony
    0
    006
    mg/L
    Asbestos
    7
    NFL
    Barium
    2
    mg/L
    Beryllium
    0.004
    rng/L
    Cadmium
    0.005
    mg/L
    Chromium
    0.1
    mg/L
    Cyanide
    (as free CN1
    rn~/L
    Fluoride
    mg/L
    Mercury
    0.002
    mg/L
    Nickel
    mci/L
    Nitrate
    (as N)
    10.
    mg/L
    Nitrite (as N)
    1.
    mg/L
    Total Nitrate and Nitrite
    10.
    mg/L
    (as
    N)
    Selenium
    0.05
    mg/L
    Thallium
    0.002
    rnci/L
    BOARD NOTE:
    See the definition of “initial
    compliance period” at Section 611.101.
    c)
    USEPA has identified the following as BAT for achieving
    compliance with the MCL for the inorganic contaminants
    identified in subsection
    (b)
    above, except for
    fluoride:
    Contaminant
    BAT(s)
    Antimony
    ~LE
    RO
    Asbestos
    C/F
    DDF
    CC
    Barium
    IX
    LII
    ~2-O397

    56
    LIME
    RO
    ED
    Beryllium
    IX
    LIME
    RO
    Cadmium
    C/F
    IX
    LIME
    RO
    Chromium
    C/F
    IX
    LIME,
    BAT for Cr(III)
    only
    RO
    Cyanide
    IX
    RO
    Mercury
    C/F, BAT only if influent Hg
    concentrations less than or equal
    to
    (?)
    10 ~g/L
    GAC
    LIME, BAT only if influent Hg
    concentrations ?
    10 j~g/L
    RO, BAT only if influent Hg
    concentrations ?
    10 j~g/L
    Nickel
    LIME
    RO
    Nitrate
    IX
    RO
    ED
    Nitrite
    IX
    RO
    Selenium
    AAL
    C/F, BAT for Se(IV)
    only
    LIME
    RO
    ED
    Thallium
    AAL
    ‘.‘~
    ‘~‘~
    rb
    1,

    57
    IX
    Abbreviations
    AAL
    Activated alumina
    C/F
    Coagulation/filtration
    DDF
    Direct and diatomite filtration
    GAC
    Granular activated carbon
    IX
    Ion exchange
    LIME Lime softening
    RO
    Reverse osmosis
    CC
    Corrosion control
    ED
    Electrodialysis
    ~i2
    Chlorination
    UV
    Ultraviolet irradiation
    BOARD NOTE:
    Derived from 40 CFR 141.62
    (1992),
    as amended at 57 Fed. Req.
    31847
    (July 17.
    1992).
    (Source:
    Amended at 17 Ill. Reg.
    _________,
    effective
    _____
    ____________________________ )
    Section 611.310
    Old MCLs for Organic Chemicals
    The following are the MCL5 for organic chemicals.
    The NCLs for
    organic chemicals in subsections
    (a) and
    (b) apply to all CWS5.
    Compliance with the MCLs in subsections
    (a) and
    (b)
    is calculated
    pursuant to Section 611.641 et seq.
    Compliance with the NCL for
    TTHM
    is calculated pursuant to Subpart P.
    Contaminant
    Level
    Additional
    (mg/L)
    State
    Requirement
    (*)
    a)
    Chlorinated hydrocarbons:
    Aldrin
    0.001
    *
    DDT
    0.05
    *
    Dieldrin
    0.001
    *
    Endrin
    ~ 0002
    Heptachior
    0.0001
    *
    Heptachior epoxide
    0.0001
    *
    BOARD
    NOTE:
    Originally ~erived
    from 40 CFR
    141.12(a)
    (1991), USEPA removed the last entry in
    this subsection and marked it reserved at 57 Fed.
    Req. 31838
    (July 17,
    1992).
    Thic provicion,
    which
    corre~pond3with 40 CFR 141.12, wac formerly the
    only lioting of MCLo for organic parameters.
    However, USEPA added another listing of organic
    0
    L~2-0•399

    58
    MCLs
    Fed.
    at 40 CFR 141.61 (1992),
    as
    Reg. 359331847
    (Jan.
    3OJuly
    amended at 5~
    17, 199*~). ~P~e
    UCEPA codification scheme creates two listings of
    MCLsz
    the counterpart to one of which appoars at
    this Section ana tne ocncr appears a~~cetion
    611.311.
    Thi-a also causes hfieptachlor, heptachlor
    epoxide, and 2,4-D #e—appear in both lists this
    Section and in Section 611.311. with a different
    MCL in each li~tSection. The heptachior,
    heptachlor epoxide, and 2,4-D MCL5 in this
    ~4stSection
    are Illinois limitations that are more
    stringent than the federal requirements.
    However,
    detection of these contaminants or violation of
    their federally-derived revised Section 611.311
    MCLs imposes more stringent monitoring, reporting,
    and notice requirements.
    b)
    Chlorophenoxys:
    2,4—D
    0.01
    *
    BOARD NOTE:
    Originally W~erivedfrom 40 CFR
    141.12(b)
    (1991). USEPA removed the last entry in
    this subsection and marked it reserved at 56 Fed.
    Req. 3578
    (Jan.
    30.
    1991).
    See the preceding
    Board Note regarding the dual listing of MCL5 for
    2 ,4—D.
    C)
    TTHM
    0.10
    *
    BOARD
    NOTE:
    Derived in part from 40 CFR 141.12(c)
    (1992).
    This is an additional State requirement to the
    extent it applies to supplies other than CWSs that add
    a disinfectant at any part of treatment and which
    provide water to 10,000 or more individuals.
    (Source:
    Amended at 17 Ill.
    Reg.
    _________,
    effective
    __________
    Section 611.311
    Revised MCL5 for Organic Contaminants
    a)
    Volatile organic chemical contaminants.
    The following
    MCLs for volatile organic chemical contaminants
    (VOC5)
    apply to CWS suppliers and NTNCWS suppliers.
    The MCLs
    for dichloromethane. 1.2.4—trichlorobenzene, and 1,1.2—
    trichloroethane are effective JanuarY 17.
    1994.
    CAS No.
    Contaminant
    NCL
    (mg/L)
    71—43—2
    Benzene
    0.005
    56—23—5
    Carbon tetrachioride
    0.005
    0 iLi,2-01,00

    59
    95—50—1
    106—46—7
    107—06—2
    75—35—4
    156—59—2
    156—60—5
    75—09—2
    78—87—5
    100—41—4
    108—90—7
    100—42—5
    127—18—4
    108—88—3
    120—82—1
    __________________________
    71—55—6
    79—00—5
    ________________________
    79—01—6
    75—01—4
    1330—20—7
    BOARD
    NOTE:
    See the definition of “initial
    compliance period” at Section 611.101.
    0.075
    0.005
    0.007
    0.07
    0.005
    0.005
    0.7
    0.1
    0.1
    0.005
    1
    0.07
    0.2
    0. 005
    0.005
    0.002
    10
    b)
    USEPA has identified,
    as indicated below, granular
    activated carbon (GAC)J er—packed tower aeration (PTA)~
    or oxidation (OX)
    as BAT for achieving compliance with
    the NCL5 for volatile organic chemical contaminants and
    synthetic organic chemical contaminants in subsections
    (a)
    and
    (c) of this Section.
    15972—60—8
    116—06—3
    1646—87—4
    1646—87—3
    1912—24—9
    71—43—2
    50—32—8
    1563—66—2
    56—23—5
    57—74—9
    94—75—7
    75—99—0
    96—12—8
    95—50—1
    106—46—7
    107—06—2
    156—59—2
    156—60—5
    75—35—4
    75—09—2
    78—87—5
    Alachlor
    Aldicarb
    Aldicarb sulfone
    Aldicarb suifoxide
    Atrazme
    Benzene
    Benzofalpyrene
    Carbofuran
    Carbon tetrachloride
    Chlordane
    2, 4—D
    Dalapon
    Dibromochioropropane
    o—Dichlorobenzene
    p—Dichlorobenzene
    1,2-Dichioroethane
    cis-1, 2—Dichloroethylene
    trans-i
    ,
    2-Dichoroethylene
    1,1-Dichloroethylene
    Dichioromethane
    1,2-Dichioropropane
    GAC
    GAC
    GAC
    GAC
    GAC
    GAC, PTA
    GAC
    GAC
    GAC,
    GAC
    GAC
    GAC
    GAC,
    GAC,
    GAC,
    GAC,
    GAC,
    GAC,
    GAC,
    PTA
    GAC,
    o-Dichlorobenzene
    0.6
    p-Dichlorobenzene
    1,2-Dichloroethane
    1, l-Dichloroethylene
    cis-1, 2-Dichioroethylene
    trans—1, 2-Dichioroethylene
    0
    1
    Dichioroniethane
    (methylene chloride)
    1, 2-Dichioropropane
    Ethylbenzene
    Monochlorobenzene
    Styrene
    Tetrachloroethylene
    Toluene
    1,2,4—Trichlorobenzene
    ____
    1,1,1—Trichloroethane
    1,1,2-Trichloroethane
    Trichloroethylene
    Vinyl chloride
    Xylenes
    (total)
    PTA
    PTA
    PTA
    PTA
    PTA
    PTA
    PTA
    PTA
    PTA
    0~~2-Ot~O1

    60
    103-23-1
    Di(2-ethvlhexvl)adipate
    GAC
    PTA
    117-81-7
    Di(2-ethylhexyl)Phthalate
    88—85—7
    Dinoseb
    85—00—7
    Diquat
    145-73—3
    Endothall
    72-20—8
    Endrin
    106-93-4
    Ethylene dibromide
    (EDB)
    GAC, PTA
    100-41-4
    Ethylbenzene
    GAC, PTA
    1071-53-6
    Glyphosate
    76-44-8
    Heptachlor
    GAC
    1024-57-3
    Heptachlor epoxide
    GAC
    118-74—1
    Hexachlorobenzene
    77—47-3
    Hexachlorocyclopentadiene
    GAC, PTA
    58-89-9
    Lindane
    GAC
    72-43-5
    Methoxychlor
    GAC
    108-90-7
    Monochlorobenzene
    GAC, PTA
    23135-22-0 Oxamyl
    GAC
    87-86-5
    Pentachiorophenol
    GAC
    1918—02—1
    Picloram
    1336-36-3
    Polychlorinated biphenyls
    GAC
    (PCB)
    122—34—9
    Simazine
    100-42-5
    Styrene
    GAC, PTA
    1746—01—6
    2.3.7,8—TCDD
    127-18-4
    Tetrachioroethylene
    GAC, PTA
    108—88—3
    Toluene
    Q~.
    8001-35-2
    Toxaphene
    GAC, PTA
    120—82—1
    1.2,4—trichlorobenzene
    GAC, PTA
    71-55-6
    1,1,1-Trichloroethane
    GAC, PTA
    79-00-5
    1.1.2-trichloroethane
    GAC,
    PTA
    79-01-6
    Trichioroethylene
    GAC, PTA
    108—88-3
    Toluenc
    GAG
    8001-35-Z
    Toxaphcnc
    CAC, PTA
    93—72—1
    2,4,5—TI’
    GAC
    75-01-4
    Vinyl chloride
    PTA
    1330-20-7
    Xylene
    GAC, PTA
    BOARD NOTE:
    Examination of the preamble to the
    Phase II amendments,
    at 56 Fed. Req. 3529
    (Jan.
    30, 1991) indicates that USEPA may not have
    intended the adoption of PTA for BAT for
    toxa~hene. The Board included it because that is
    what the federal rule actuallY indicates.
    See the
    Board Note to Section 611.130(c) (1).
    c)
    Synthetic organic chemical contaminants.
    The following
    MCLs for synthetic organic chemical contaminants
    (SOC5)
    apply to CWS and NTNCWS suppliers.
    The NCLs for benzo-
    falpyrene.
    dalapon. di(2-ethvlhexyl)adipate. di (2—
    ethylhexvl)~hthalate,dinoseb, diquat. endothall,
    endrin. cilyphosate, hexpchlorobenzene. hexachiorocyclo—
    pentadiene, oxamyl
    (vvdate). picloram, simazine. and
    I
    /
    U~u

    61
    2,3,7,8—TCDD
    (dioxin) are effective January 17. 1994.
    CAS Number Contaminant
    MCL (mg/L)
    15972—60—8 Alachlor
    0.002
    116—06—3
    Aldicarb
    0.003
    1646—87—4
    Aldicarb sulfone
    0.002
    1646—87—3
    Aldicarb sulfoxide
    0.004
    1912—24—9
    Atrazine
    0.003
    50—32—8
    Benzoa~yrene
    0.0002
    1563—66—2
    Carbofuran
    0.04
    57—74—9
    Chiordane
    0.002
    94—75—7
    2,4—D
    0.07
    75-99-0
    Dala~on
    96—12-8
    Dibromochloropropane
    0.0002
    103-23-1
    Di (2-ethvlhexvl)adipate
    117-81-7
    Di(2-ethylhexyl)phthalate
    0.006
    88—85—7
    Dinoseb
    0.007
    85—00—7
    Dipuat
    0.02
    14
    5-73-3
    Endothall
    .QJ.
    72—20—8
    Endrin
    0.002
    106—93-4
    Ethylene dibroiuide
    0.00005
    1071—53-6
    Glyphosate
    0.7
    76—44—8
    Heptachlor
    0.0004
    1024—57-3
    Heptachlor epoxide
    0.0002
    118-74-1
    Hexachlorobenzene
    0.001
    77—47-4
    Hexachlorocyclopentadiene
    0.05
    58—89—9
    Lindane
    0.0002
    72—43—5
    Methoxychior
    0.04
    23135—22-0 Oxamyl
    (Vydate)
    87—86—5
    Pentachlorophenol
    0.001
    1918—02—1
    Picloram
    1336-36-3
    Polychiorinated biphenyls
    0.0005
    (PCBs)
    122—34—9
    Simazine
    0.004
    1746—01—6
    2,3,7,8—TCDD
    (Dioxin)
    0.00000003
    8001—35—2
    Toxaphene
    0.003
    93—72—1
    2,4,5—TP
    0.05
    BOARD
    NOTE:
    Derived from 40 CFR 141.61
    (1992),
    as
    amended at 57
    Fed.
    Reg. 31847
    (July 17,
    1992).
    See the definition of “initial compliance period”
    at Section 611.101.
    More stringent state MCL5 for
    2,4-D,
    heptachior, and heptachlor epoxide appear
    at Section 611.310.
    See the Board Note at that
    provision.
    The effectiveness of the HCL5 for
    aldicarb, aldicarb sulfone, and aldicarb sulfoxide
    are administratively stayed until the Board takes
    further administrative action to end this stay.
    However, suppliers must monitor for these three
    SOCs pursuant to Section 611.648.
    See 40 CFR
    141.6(g)
    (1992)
    and 57 Fed. Reg. 22178
    (May 27,
    U
    I
    L2-Qt~,O3

    62
    1992).
    (Source:
    Amended at 17 Ill. Reg.
    _________,
    effective
    _______
    ____________________________ )
    SUBPART
    K:
    GENERAL
    MONITORING
    AND
    ANALYTICAL
    REQUIREMENTS
    Section
    611.510
    Special
    Monitoring
    for
    Unregulated
    Contaminants
    Monitoring
    of
    the
    unregulated
    inorgani.c
    contaminants
    listed
    in
    subsection
    (k) below and the unregulated inorganic contaminants
    listed in subsection
    (1) below shall be conducted as follows:
    a)
    Each CWS and NTNCWS supplier shall take four
    consecutive quarterly samples at each sampling point
    for each contaminant listed in subsection
    (k) below and
    report the results to the Agency.
    Monitoring must be
    completed by December 31,
    1995.
    b)
    Each CWS and NTNCWS supplier shall take one sample at
    each sampling point for each contaminant listed in
    subsection
    (1) below and report the results to the
    Agency.
    Monitoring must be completed by December 31,
    1995.
    c)
    Each
    CWS
    and
    NTNCWS
    supplier
    may
    apply
    to
    the
    Agency
    for a SEP pursuant to Section 611.110 that releases it
    from any of the requirements of subsections
    (a)
    and
    (b)
    above.
    d)
    The
    Agency
    shall
    grant
    a
    SEP
    pursuant
    to
    Section
    611.110 as follows:
    1)
    From any requirement of subsection
    (a) above based
    on consideration of the factors set forth at
    Section 611.110(e), and
    2)
    From any requirement of subsection
    (b) above if
    previous analytical results indicate contamination
    would not occur, provided this data was collected
    after January
    1,
    1990.
    e)
    A GWS supplier shall take a minimum of one sample at
    every entry point to the distribution system that is
    representative of each well after treatment (“sampling
    point”).
    f)
    A SWS
    or mixed system supplier shall take a minimum of
    one sample at points in the distribution system that
    are representative of each source or at each entry
    point to the system after treatment (“sampling point”).
    Ut

    63
    g)
    If the system draws water from more than one source and
    sources are combined before distribution, the supplier
    shall sample at an entry po.int during periods of normal
    operating conditions
    (when water representative of all
    sources is being used).
    h)
    The Agency may issue a SEP pursuant to Section 610.110
    to require a supplier to use a confirmation sample for
    results that it finds dubious for whatever reason.
    The
    Agency must state its reasons for issuing the SEP if
    the SEP is Agency-initiated.
    1)
    Suppliers shall take samples at the same sampling point
    unless the Agency has granted a SEP allowing another
    sampling point because conditions make another sampling
    point more representative of the water from each source
    or treatment plant.
    BOARD NOTE:
    Subsection
    (i)
    above corresponds with
    duplicate segments of 40 CFR 141.40(n) (5)
    and
    (n) (6)
    (1991), which correspond with subsections
    (e)
    and
    (f)
    above.
    The Board has adopted no counterpart to 40 CFR
    141.40(n) (9), an optional provision that pertains to
    composite sampling.
    Otherwise, the structure of this
    Section directly corresponds with 40 CFR 141.40(n)
    (1991).
    j)
    Instead of performing the monitoring required by
    Section,
    a CWS and NTNCWS supplier serving fewer
    150 service connections may send a letter to the
    stating that the PWS is available for sampling.
    letter must be sent to the Agency by January
    1,
    The supplier shall not send such samples to the
    unless requested to do so by the Agency.
    k)
    List of unregulated organic contaminants:
    Contaminant
    USEPA Organic
    Methods
    this
    than
    Agency
    This
    1994.
    Agency,
    Aldrin
    BCflZO~L,
    Butachlor
    Carbaryl
    Dalapon
    Di (2-ethylhcxyl)adipate
    Di (2-ethylhexyl)
    -
    phthalatcs
    Dicamba
    Dieldrin
    Dinoscb
    505,
    508, 525
    525,
    550,
    550.1
    507,
    525
    531.1
    515.1
    506,
    525
    ~0-6,525
    515.1
    505,
    508,
    525
    515.1

    64
    -
    3—Hydroxycarbofuran
    Methomyl
    Metolachlor
    Metribuzin
    Oxamyl
    (vydate)
    Pic 1cr am
    Propachior
    Cimazinc
    2,3,7,8—TCDD
    (Dioxin)
    Diquat
    EndothalI
    C
    lyphoc
    ate
    Hexachloroi
    505,
    508,
    525
    505, 525
    531.1
    531.1
    507, 525
    507,
    508, 525
    531.1
    515.1
    507, 525
    505,
    507, 525
    1)
    List of unregulated inorganic contaminants:
    Contaminant
    USEPA Inorganic Methods
    Antimony
    Graphite
    Furnace
    Atomic
    Absorption; Inductively
    Coupled Plasma
    Beryllium
    Graphite
    Furnace
    Atomic
    Absorr~t~i
    pn~
    Tnducitiv~iv
    coupicdMa3s Spcctrornctry
    Plasma
    Cnectrophotoinctrio
    Atomic
    Absc
    _______,
    —~
    .._~i_
    Sulfate
    Thallium
    Colorimetric
    Graphitc
    -
    Furnace Atomic
    Ai~orption~ i~uctivoiy
    Coupled Mass Spectrometry
    Pla3ma
    Cyanide
    Cpcctrop
    BOARD
    NOTE:
    (1993~2),as
    17.
    1992).
    Derived from 40 CFR 141.40(n)
    amended at 57 Fed. Rea.
    31846 (July
    (Source:
    Amended
    at
    17
    Ill.
    Reg.
    ,
    effective
    SUBPART
    M:
    INORGANIC MONITORING AND ANALYTICAL REQUIREMENTS
    Section
    611.600
    Applicability
    The
    following
    types
    of
    suppliers
    shall
    conduct
    monitoring
    to
    determine
    compliance
    with
    the
    old
    MCL5
    in
    Section
    611.300
    and
    the
    revised
    MCL5
    in
    611.301,
    as
    appropriate,
    in
    accordance
    with
    this
    Subpart:
    DIt~2-0~.O6
    Nickc1
    ...a~fl.,
    ~
    .
    ma;
    Graphite

    65
    a)
    CWS suppliers.
    b)
    NTNCWS suppliers.
    c)
    Transient non—CWS suppliers to determine compliance
    with the nitrate and nitrite MCL5.
    BOARD
    NOTE:
    Derived from 40 CFR 141.23
    (preamble)
    (1991).
    d)
    Detection limits.
    The following are detection limits
    for purposes of this Subpart
    (MCLs from Section 611.301
    are set forth for information purposes only):
    Detec-
    MCL
    (mg/L,
    tion
    except as-
    Limit
    Contaminant
    bestos)
    Method
    (mg/L)
    Antimony
    0.006
    Atomic absorption—
    0.003
    furnace technique
    Atomic absorption—
    0.0008
    furnace technique
    (stabilized
    temperature)
    Inductively-coupled
    0.0004
    plasma—Mass spectro—
    metrv
    Atomic absorption-
    0.001
    gaseous hydride tech-
    nique
    Asbestos
    7 MFL
    Transmission ~lectron
    0.01
    M~flicroscopy
    MFL
    Barium
    2
    Atomic A~bsorption~
    0.002
    furnace technique
    Atomic A~bsorptionj-z
    0.1
    direct aspiration tech-
    nique
    Inductively—G~oupled
    0
    002
    ~plasma arc furnace
    Inductively—G~oupled
    0.001
    P~1asma~~(j~sing
    concentration technique
    in Section 611.A~ppen—
    13
    L~
    2
    U
    0 7

    66
    dix 200.7A to USEPA
    Inorganic Method
    200.7)~-
    Beryllium
    0.004
    Atomic absorption-
    0.0002
    furnace technique
    Atomic absorption-
    0.00002
    furnace technigue
    (stabilized temper-
    ature)
    Inductively—coupled
    0.0003
    plasma
    (using a 2x
    preconcentration step;
    a lower MDL is possible
    using 4x preconcentra—
    tion)
    Inductive1y—cou~1ed
    0.0003
    plasma—Mass spectro—
    metrv
    Cadmium
    0.005
    Atomic A~bsorption~.~ 0.0001
    furnace technique
    Inductive1y—G~oupled
    0.001
    Pplasma~Ujj~sing
    concentration technique
    in A~ppendix200.7A to
    USEPA Inorganic Method
    200.7j--
    Chromium
    0.1
    Atomic A~bsorption-~
    0.001
    furnace technique
    Inductively—G~oupled
    0.007
    P~lasma
    Inductively—G~goupled
    0.001
    P~lasmaj~~fl~sing
    concentration technique
    in Appendix A to USEPA
    Inorganic Method
    200.
    71--
    cyanide
    0.2
    Distillation,
    0.02
    spectrophotometric
    (screening method for
    total cyanides)
    Automated distillation, 0.005
    0

    67
    spectrophotometric
    (screening method for
    total cyanides)
    Distillation, selective 0.05
    electrode (screening
    method for total
    cyanides)
    Distillation, amenable,
    0.02
    spectrophotometric (for
    free cyanides)
    Mercury
    0.002
    Manual G~oldV~apor
    0.0002
    ~echn
    ique
    Automated GQold ~Mapor
    0.0002
    ~echnique
    Nickel
    Q~J~
    Atomic absorption—
    0.001
    furnace technique
    Atomic absorption-
    0.0006
    furnace technique
    (stabilized temper-
    ature)
    Inductively-coupled
    0.005
    plasma
    (using
    a 2x
    preconcentration step;
    a lower MDL is possible.
    using 4x preconcentra—
    tion)
    Inductively-coupled
    0.0005
    plasma—Mass spectro-
    metry
    Nitrate
    (as
    10
    Manual G~admium
    0.01
    N)
    Rr~eduction
    Automated ~hydrazine
    0.01
    R~eduction
    Automated G~admium
    0.05
    R~eduction
    Ion—&~elective
    1
    ~lectrode
    Ion G~hromatography
    0.01
    Ol~2-0i~.09

    68
    Nitrite
    (as
    1
    Spectrophotometric
    0.01
    N)
    Automated G~admium
    0.05
    Rreduction
    Manual Gcadmium
    0.01
    Rreduction
    Ion G~hromatography
    0.004
    Selenium
    0.05
    Atomic A~bsorptionj-z
    0.002
    furnace technique
    Atomic A~bsorption-~
    0.002
    gaseous hydride tech-
    nique
    Thallium
    0.002
    Atomic absorption-
    0.002
    furnace technique
    Atomic absorption-
    0.0007
    furnace technique
    (stabilized temper-
    ature)
    Inductively—coupled
    0.0003
    plasma—Mass spectro—
    metry
    BOARD
    NOTE:
    Derived from 40 CFR 141.23 preamble and
    paragraph
    (a) (4) (i)
    (1991). as amended at 57 Fed. Req.
    31838—39
    (July 17.
    1992).
    (Source:
    Amended at 17 Ill. Reg.
    ________,
    effective
    _________
    Section 611.601
    Monitoring Frequency
    Monitoring shall be conducted as follows:
    a)
    Required sampling.
    1)
    Each supplier shall take a minimum of one sample
    at each sampling point at the times required by
    Section 611.610 beginning January
    1,
    1903in the
    initial compliance period.
    2)
    Each sampling point must produce samples that are
    representative of the water from each source after
    treatment or from each treatment plant,
    as
    required by subsection
    (b)
    below.
    The total
    Ut i~.2-UL~~
    10

    69
    number of sampling points must be representative
    of the water delivered to users throughout the
    PWS.
    3)
    The supplier shall take each sample at the same
    sampling point unless conditions make another
    sampling point more representative of each source
    or treatment plant and the Agency has granted a
    SEP pursuant to subsection
    (b) (5)
    below.
    b)
    Sampling points.
    1)
    sampling points for GWSs.
    Unless otherwise
    provided by SEP,
    a GWS supplier shall take at
    least one sample from each of the following
    points:
    each entry point that is representative
    of each well after treatment.
    2)
    Sampling points for SWS5 and mixed systems.
    Unless otherwise provided by SEP,
    a SWS or mixed
    system supplier shall take at least one sample
    from each of the following points:
    A)
    Each entry point after the application of
    treatment; or
    B)
    A point in the distribution system that is
    representative of each source after
    treatment.
    3)
    If a system draws water from more than one source,
    and the sources are combined before distribution,
    the supplier shall sample at an entry point during
    periods of normal operating conditions when water
    is representative of all sources being used.
    4)
    Additional sampling points.
    The Agency shall, by
    SEP, designate additional sampling points in the
    distribution system or at the consumer’s tap if it
    determines that such samples are necessary to more
    accurately determine consumer exposure.
    5)
    Alternative sampling points.
    The Agency shall,
    by
    SEP,
    approve alternate sampling points if the
    supplier demonstrates that the points are more
    representative than the generally required point.
    C)
    This subsection corresponds with 40 CFR 141.23(a) (4),
    an optional USEPA provision relating to compositing of
    samples that USEPA does not require for state programs.
    This statement maintains structural consistency with
    USEPA
    rules.
    01L~.2-OL~1
    I

    70
    d)
    The frequency of monitoring for the following
    contaminants must be in accordance with the following
    Sections:
    1)
    Asbestos:
    Section 611.602;
    2)
    Antimony, B.~arium,beryllium,
    cadmium, chromium,
    cyanide. fluoride, mercury af~dnickel.selenium~
    and thallium:
    Section 611.603;
    3)
    Nitrate:
    Section 611.604; and
    4)
    Nitrite:
    Section 611.605.
    BOARD
    NOTE:
    Derived from 40 CFR 141.23(a)
    (1991)
    and 40 CFR 141.23Ic). as amended at 57 Fed. Req.
    31839
    (July 17,
    1992).
    (Source:
    Amended at 17 Ill. Reg.
    ________,
    effective
    ________
    __________________________)
    Section 611.603
    Inorganic Monitoring Frequency
    The frequency of monitoring conducted to determine compliance
    with the revised NCL5 in Section 611.301 for antimony. barium,
    beryllium, cadmium, chromium, cyanide,
    fluoride, mercury,
    a~n8nicke1, selenium, and thallium is as follows:
    a)
    Suppliers shall take samples at each sampling point,
    beginning January
    1,
    l~93inthe initial compliance
    period,
    as follows:
    1)
    For GWSs:
    at least one sample during each
    compliance periodevery three years
    2)
    For SWSs and mixed systems:
    at least one sample
    each year.
    BOARD
    NOTE:
    Derived from 40 CFR 141.23(c) (1)
    (1991), as amended at 57 Fed.
    Req. 31839
    (July 17,
    1992).
    b)
    SEP Application.
    The supplier may apply to the Agency
    for a SEP that allows reduction from the monitoring
    frequencies specified in subsection
    (a) above pursuant
    to subsections
    (d) through
    (f) below and Section
    611.110.
    BOARD NOTE:
    Drawn from 40 CFR 141.23(c) (2) and
    (c) (6)
    (1991).
    c)
    SEP Procedures.
    The Agency shall review the request
    01
    t~2-0L~.
    12

    71
    pursuant to the SEP procedures of Section 611.110 based
    on consideration of the factors in subsection
    (e)
    below.
    BOARD
    NOTE:
    Drawn from 40 CFR 141.23 (c) (6)
    (1991).
    d)
    Standard for SEP reduction in monitoring.
    The Agency
    shall grant a SEP that allows a reduction in the
    monitoring frequency if the supplier demonstrates that
    all previous analytical results were less than the MeL,
    provided the supplier meets the following minimum data
    requirements:
    1)
    For GWS suppliers:
    a minimum of three rounds of
    monitoring.
    2)
    For SWS and mixed system suppliers:
    annual
    monitoring for at least three years.
    3)
    At least one sample must have been taken since
    January
    1,
    1990.
    BOARD NOTE:
    Drawn from 40 CFR 141.23(c) (4)
    (1991).
    e)
    Standard for SEP monitoring conditions.
    As a condition
    of any SEP, the Agency shall require that the supplier
    take a minimum of one sample during the term of the
    SEP.
    In determining the appropriate reduced monitoring
    frequency,
    the Agency shall consider:
    1)
    Reported concentrations from all previous
    monitoring;
    2)
    The degree of variation in reported
    concentrations; and
    3)
    Other factors may affect contaminant
    concentrations,
    such as changes in groundwater
    pumping rates, changes in the CWSs configuration,
    the CWS’s operating procedures,
    or changes in
    stream flows or characteristics.
    BOARD NOTE:
    Drawn from 40 CFR 141.23(c) (3)
    and
    (c) (5)
    (1991)
    f)
    SEP Conditions and Revision.
    1)
    A SEP will expire at the end of the compliance
    cycle for which it was issued.
    BOARD NOTE:
    Drawn from 40 CFR 141.23(c) (3)
    Q
    I
    i.s.2-0L~
    13

    72
    (1991).
    2)
    In issuing a SEP, the Agency shall specify the
    level of the contaminant upon which the “reliably
    and consistently” determination was based.
    A SEP
    must provide that the Agency will review and,
    where appropriate, revise its determination of the
    appropriate monitoring frequency when the supplier
    submits new monitoring data or when other data
    relevant to the supplier’s appropriate monitoring
    frequency become available.
    BOARD NOTE:
    Drawn from 40 CFR 141.23(c) (6)
    (1991).
    g)
    A supplier that exceeds the MCL for barium,
    cadmium,
    chromium, fluoride, mercury, or selenium, as determined
    in Section 611.609,
    shall monitor quarterly for that
    contaminant, beginning in the next quarter after the
    violation occurred.
    BOARD
    NOTE:.
    Derived from 40 CFR 141.23(c) (7)
    (1991).
    h)
    Reduction of quarterly monitoring.
    1)
    The Agency shall grant a SEP pursuant to Section
    611.110 that reduces the monitoring frequency to
    that specified by subsection
    (a)
    above if it
    determines that the sampling point is reliably and
    consistently below the MCL.
    2)
    A request for a SEP must include the following
    minimal information:
    A)
    For a GWS:
    two quarterly samples.
    B)
    For an SWS or mixed system:
    four quarterly
    samples.
    3)
    In issuing the SEP, the Agency shall specify the
    level of the contaminant upon which the “reliably
    and consistently” determination was based.
    All
    SEPs that allow less frequent monitoring based on
    an Agency “reliably and consi~tently”
    determination shall include a condition requiring
    the supplier to resume quarterly monitoring for
    any contaminant pursuant to subsection
    (g)
    above
    if it violates the MCL specified by Section
    611.609 for that contaminant.
    BOARD NOTE:
    Derived from 40 CFR 141.23(c) (8)
    (1991).
    0
    t1~2-014R

    73
    (Source:
    Amended at 17 Ill. Req.
    _________,
    effective
    __________
    ________________________)
    Section 611.609
    Averaging
    Compliance with the MCLs of Sections 611.300 or 611.301
    (as
    appropriate) must be determined based on the analytical result(s)
    obtained at each sampling point.
    a)
    For suppliers that monitor at a frequency greater than
    annual, compliance with the NCLS for antimony~
    asbestos, barium, beryllium,
    cadmium, chromium,
    cyanide, fluoride, mercury, a~idnicke1. selenium, and
    thallium is determined by a running annual average at
    each sampling point.
    1)
    If the average at any sampling point is greater
    than the MCL, then the supplier is out of
    compliance.
    2)
    If any one sample would cause the annual average
    to be exceeded, then the supplier is out of
    compliance immediately.
    3)
    Any sample below the method detection limit must
    be calculated at zero for the purpose of
    determining the annual average.
    BOARD NOTE:
    The “method detection limit” is
    different from the “detection limit”, as set forth
    in Section 611.600.
    The “method detection limit”
    is the level of contaminant that can be determined
    by a particular method with a 95 percent degree of
    confidence,
    as determined by the method outlined
    in 40 CFR 136,
    appendix’B,
    incorporated by
    reference at Section 611.102.
    b)
    For suppliers that monitor annually or less frequently,
    compliance with the MCLs for antimony. asbestos,
    barium, beryllium,
    cadmium, chromium, cyanide,
    fluoride, mercury, e~i4nickel. selenium, and thallium is
    determined by the level of the contaminant at any
    sampling point.
    If a confirmation sample is taken, the
    determination of compliance will be based on the
    average of the two samples.
    c)
    Compliance with the NCLs for nitrate and nitrite is
    determined based on one sample if the levels of these
    contaminants are below the MCL5.
    If the levels of
    nitrate or nitrite exceed the MCLs in the initial
    sample, Section 611.606 requires confirmation sampling,
    and compliance is determined based on the average of
    U
    t4~.ti4

    74
    the initial and confirmation samples.
    d)
    When the portion of the distribution system that is out
    of compliance is separable from other parts of the
    distribution system and has no interconnections, the
    supplier may give the public notice required by Subpart
    T
    only to persons served by that portion of the
    distribution system not in compliance.
    BOARD
    NOTE:
    Derived from 40 CFR 141.23(i)
    (1991). as
    amended at 57 Fed. Req. 31839
    (July 17,
    1992).
    (Source:
    Amended at 17 Ill.
    Req.
    _________,
    effective
    __________
    ____________________________ )
    Section 611.611
    Inorganic Analysis
    Analytical methods are from documents incorporated by reference
    in Section 611.102.
    These are mostly referenced by a short name
    defined by Section 611.102(a).
    Other abbreviations are defined
    in Section 611.101.
    a)
    Analysis for antimony, asbestos, beryllium,
    barium,
    cadmium,
    chromium,
    cyanide,
    mercury,
    nickel,
    nitrate,
    nitrite, and selenium,
    and thallium pursuant to
    Sections 611.600 through 611.604 must be conducted
    using the following methods.
    For approved analytical
    techniques for metals and selenium, the technique
    applicable to total metals must be used.
    For methods
    marked with an asterisk
    (*),
    the procedure of
    subsection
    (f) below must be used for preservation,
    measurement of turbidity, and digestion.
    fl
    Antimony:
    ~j
    Atomic absorption, furnace technigue*:
    iL
    USEPA Inorganic Methods:
    Method 204.2,
    or
    jjj..
    Standard Methods:
    Method 3113
    ~j
    Atomic absorption, Platform furnace
    techniaue*:
    USEPA
    Environmental
    Metals
    Methods:
    Method 220.9
    ~j.
    Inductively-coupled plasma-Mass
    spectrometrv*:
    USEPA Environmental Metals
    Methods:
    Method 200.8; or
    Qj
    Atomic
    absorption.
    ciaseous
    hydride
    techniciue,
    usinci
    the
    digestion
    technique
    set
    forth
    in
    cit
    L~.2-Ui~.i6

    75
    the method:
    ASTM Method D3697—87.
    ~)
    Asbestos:
    Transmission electron microscopy~j
    USEPA Asbestos Methods.
    a3)
    Barium:
    A)
    Atomic absorption,
    furnace technique~:
    i)
    USEPA Inorganic Methods:
    Method 208.2,
    or
    ii)
    Standard Methods:
    Method
    3-O-43113B;
    B)
    Atomic absorption, direct aspiration
    technique*:
    i)
    USEPA Inorganic Methods:
    Method 208.1,
    or
    ii)
    Standard Methods:
    Method 303C3111D; or
    C)
    Inductively—coupled plasma arc furnace~~j.
    iL
    Inductively-Coupled Plasma MethodUSEPA
    Environmental Metals Methods
    Method
    200.7.,
    as supplemented by Hethod
    200.7A. or
    JJJ.
    Standard Methods:
    Method
    3120.
    j)
    Beryllium:
    ~
    Atomic absorption,
    furnace technigue*:
    ii
    USEPA Inorganic Methods:
    Method 210.2,
    jjj
    ASTM Method D3645—84B, or
    iii)
    Standard Methods:
    Method 3113
    ~j
    Atomic absorption,
    platform furnace
    technique*:
    USEPA Environmental Metals
    Methods:
    Method 200.9
    .Q).
    Inductively—coupled ~1asma arc furnace*:
    11
    USEPA Environmental Metals Methods:
    Method 200.7, or
    iii
    Standard Methods:
    Method
    3120; or
    0
    Lt2-tJL~,
    17

    76
    ~
    Inductively-coupled plasma-Mass
    spectrometry*:
    USEPA Environmental Metals
    Methods:
    Method 200.8.
    3~)
    Cadmium:
    A)
    Atomic absorption,
    furnace technique~:
    i)
    USEPA Inorganic Methods:
    Method 213.2,
    or
    ii)
    Standard Methods:
    Method 3G43113B; or
    B)
    Inductively—coupled plasma arc furnace,-~j
    Inductively Coupled Plasma Mcth0dUSEPA
    Environmental Metals Methods*, Method
    200’7T
    as supplemented by Method 200.7A.
    46)
    Chromium:
    A)
    Atomic absorption, furnace technique,~:
    i)
    USEPA Inorganic Methods:
    Method 218.2,
    or
    ii)
    Standard Methods:
    Method 304
    (The
    addition of
    1 mL of 30
    hydrogen
    peroxide to each 100 mL of standards and
    ~amp1cs
    is required before
    analyzis.)3113B; or
    B)
    Inductively—coupled plasma arc furnace7~
    li
    Inductively Coupled Plasma HethodUSEPA
    Environmental Metals Methods:
    Method
    200.7.,
    as supplemented by Method
    200.7A, or
    .jil.
    Standard Methods:
    Method 3120.
    a
    Cyanide:
    ~j
    Distillation, s~ectrophotometric:
    iL
    USEPA Inorganic Methods:
    Method 335.2,
    Lii
    ASTM Method D2036-89A.
    iii) Standard Methods:
    Method 4500-CN D. or
    ~
    USGS Methods:
    Method 1-3300-85
    0H~2-0L.j8

    77
    ~j
    Automated distillation. spectrophotometric:
    LL
    USEPA Inorganic Methods:
    Method 335.3,
    or
    jJJ.
    Standard Methods:
    Method 4500-CN E
    ~j
    Distillation, selective electrode:
    LL.
    ASTM Method D2036-89A, or
    jjj
    Standard Methods:
    Method 4500-CN F; or
    Qj
    Distillation,
    amenable,
    spectrophotometric:
    i~
    USEPA
    Inorganic
    Methods:
    Method
    335.1,
    jjj
    ASTM Method D2036-89B,
    or
    iii)
    Standard
    Methods:
    Method
    4500-CN
    G.
    5)
    Mercury:
    A)
    Manual
    cold
    vapor
    technique,
    using
    the
    digestion technique set forth in the method:
    i)
    USEPA Inorganic Methods:
    Method 245.1,
    ii)
    ASTM D3223—86, or
    iii) Standard Methods:
    Method 303F3112B; or
    B)
    Automated cold vapor technique, using the
    digestion
    technique
    set
    forth
    in
    the
    method:
    USEPA
    Inorganic
    Methods:
    Method
    245.2.
    ~j
    Nickel:
    ~j.
    Atomic absorption, furnace technigue*:
    iL
    USEPA Inorganic Methods:
    Method 249.2,
    or
    iii
    Standard Methods:
    Method 3113
    ~
    Atomic absorption, platform furnace
    technique*:
    USEPA Environmental Metals
    Methods:
    Method 200.9
    Qj
    Atomic absorption, direct aspiration
    technique*:
    0
    1
    L~
    2
    3 ~
    9

    78
    ii
    USEPA Inorganic Methods:
    Method 249.1,
    or
    Lii.
    Standard Methods:
    Method 3111B
    Qj
    Inductively-coupled plasma*:
    LL
    USEPA Environmental Metals Methods:
    Method 200.7, or
    jjj
    Standard Methods:
    Method 3120;
    or
    El
    Inductively-coupled plasma-Mass
    spectrometry*:
    USEPA Environmental Metals
    Methods:
    Method 200.8.
    610)
    Nitrate:
    A)
    Manual cadmium reduction:
    i)
    USEPA Inorganic Methods:
    Method 353.3,
    ii)
    ASTN D3867—90, or
    iii)
    Standard Methods:
    Method 4lSC4500-N03
    B)
    Automated hydrazine reduction:
    USEPA
    Inorganic Methods:
    Method 353.1;
    C)
    Automated cadmium reduction:
    1)
    USEPA Inorganic Methods:
    Method 353.2,
    ii)
    ASTM D3867—90, or
    iii)
    Standard Methods:
    Method 418C4500-N03
    D)
    Ion selective electrode:
    WeWWG/5880,
    available from Orion Research; or
    E)
    Ion chromatography:
    i)
    USEPA Inorganiclon Chromatography
    Methods:
    Method 300.0,
    or
    ii)
    B-loll,
    available
    from
    Millipore
    Corporation.
    ~jJ~)
    Nitrite:
    01 L~2-0~.20

    79
    A)
    Spectrophotometric:
    USEPA Inorganic Methods:
    Method 354.1;
    B)
    Automated cadmium reduction:
    i)
    USEPA Inorganic Methods:
    Method 353.2,
    ii)
    ASTM D3867—90, or
    iii) Standard Methods:
    Method 418C4500—NO3
    C)
    Manual
    cadmium
    reduction:
    i)
    USEPA
    Inorganic
    Methods:
    Method
    353.3,
    ii)
    ASTM
    D3867—90,
    or
    iii)
    Standard
    Methods:
    Method
    4-1CC4500—N03
    E.
    D)
    Ion
    chromatography:
    i)
    USEPA
    Inorganiclon
    Chromatography
    Methods:
    Method 300.0,
    or
    ii)
    Method B-loll, available from Millipore
    Corporation.
    ~i~) Selenium:
    A)
    Atomic
    absorption,
    gaseous
    hydride,
    using
    the
    digestion technique set forth in the method:
    il
    ASTM
    D3859-88A,
    or
    iLL
    Standard Nethods~ Method 3114B
    or
    B)
    Atomic absorption, graphite furnace
    technique*. adding 2mL of 30
    hydrogen
    peroxide (H2Q~andan appropriate
    concentration
    of
    nickel
    nitrate
    hexahydrate
    (NiNO~&O) to the samples as
    a matrix
    modifier:
    i)
    USEPA
    Inorganic
    Methods~:
    Method
    270.2,
    ii)
    ASTM D3859—88B, or
    iii) Standard Methods:
    Method 3043113B
    (Prior to dilution of the selenium
    01 L~2-OL~,2.L

    80
    calibrati
    hydrogen peroxide for each 100 mL of
    standard.).
    ~
    Thallium:
    ~j
    Atomic absorption, furnace technique, using
    the digestion technique set forth in the
    method*:
    iL
    USEPA Inorganic Methods:
    Method 279.2.
    or
    iii
    Standard
    Methods:
    Method
    3113
    ~j
    Atomic absorption platform furnace technique,
    using the digestion technique set forth in
    the
    method:
    USEPA
    Environmental
    Metals
    Methods*:
    Method 200.9; or
    çj
    Inductively—coupled plasma—Mass s~ectrometry:
    USEPA
    Environmental
    Metals
    Methods:
    Method
    200.8.
    BOARD
    NOTE:
    Derived
    from
    40
    CFR
    141.23
    (k) (1)
    (1992)
    and 40 CFR 141.23
    (k) (4), as added at
    57
    Fed.
    Reci.
    31839—40
    (July
    17,
    1992).
    In
    promulaatina
    the
    Phase
    V
    rules,
    USEPA
    creates
    a new table of analytical methods at 40 CFR
    141.23(k) (4) that would duplicate the methods
    set forth at 40 CFR 141.23(k) (1)
    except that
    USEPA
    updated
    and
    revised
    several
    of
    the
    methods.
    The
    Board
    has
    combined
    the
    two
    federal
    tables,
    using
    the
    version
    of
    each
    method set forth in the Phase V rules where
    the methods set forth conflict.
    b)
    Arsenic.
    Analyses for arsenic must be conducted using
    one
    of
    the
    following
    methods:
    1)
    Atomic
    absorption,
    furnace
    technique:
    USEPA
    Inorganic
    Methods:
    Method
    206.2;
    2)
    Atomic
    absorption,
    gaseous
    hydride:
    A)
    USEPA
    Inorganic
    Methods:
    Method
    206.3,
    B)
    ASTM
    D2972—88B,
    C)
    Standard
    Methods:
    i)
    Method
    307A
    (referencing
    Methods
    303E
    0
    L~2-UL~.22

    81
    and 304), or
    ii)
    Method
    307B
    D)
    USGS
    Methods:
    1—1062—85;
    3)
    Spectrophotometric,
    silver
    diethyldithiocarbamate:
    A)
    USEPA Inorganic Methods:
    Method 206.4,
    B)
    ASTM D—2972-88A,
    or
    C)
    Standard Methods:
    Method 307B;
    or
    4)
    Inductively—coupled plasma arc furnace,
    Inductively Coupled Plasma Method, Method 200.7,
    as supplemented by Methodappendix 200.7A.
    BOARD NOTE:
    Derived from 40 CFR 141.23 (k) (2)
    (1992).
    c)
    Fluoride.
    Analyses for fluoride must be conducted
    using one of the following methods:
    1)
    Colorimetric SPADNS, with distillation:
    A)
    USEPA Inorganic Methods:
    Method 340.1,
    B)
    ASTM D1179—72A,
    or
    C)
    Standard Methods:
    Methods 413A and 413C;
    BOARD
    NOTE:
    40
    CFR
    141.23(k)
    (3)
    cites
    methods “43 A and
    C”,
    an obvious error that
    the Board has corrected to “413A and 413C”.
    2)
    Potentiometric,
    ion selective electrode:
    A)
    USEPA Inorganic Methods:
    Method 340.2,
    B)
    ASTM D1179—72B,
    or
    C)
    Standard Methods:
    Method 413B;
    3)
    Automated Alizarin fluoride blue, with
    distillation
    (complexone):
    A)
    USEPA Inorganic Methods:
    Method 340.3,
    B)
    Standard Methods:
    Method 413E, or
    C)
    Technicon Methods:
    Method 129—71W; or
    01
    ~42-Oi~23

    82
    4)
    Automated ion selective electrode:
    Technicon
    Methods, Method 380—7SWE.
    BOARD NOTE:
    Derived from 40 CFR 141.23(k) (3)
    ~992)
    d)
    Sample collection for antimony. asbestos,
    barium,
    beryllium,
    cadmium, chromium, cyanide, fluoride,
    mercury, nickel,
    nitrate, nitrite~and—selenium, and
    thallium pursuant to Sections 611.600 through 611.604
    must
    be
    conducted
    using
    the
    following
    sample
    preservation, container and maximum holding time
    procedures:
    fl
    Antimony:
    ~j
    Preservative:
    Concentrated nitric acid to pH
    less than 2.
    If nitric acid cannot be used
    because
    of
    shippinci
    restrictions,
    the
    sample
    may initially be preserved bY icing and
    immediately shipping it to the laboratory.
    Upon receipt in the laboratory1 the sample
    must be acidified with concentrated nitric
    acid to pH less than 2.
    At the time of
    sample analysis, the sample container must be
    tborouahly rinsed with 1:1 nitric acid;
    washings must be added to the sample..
    Plastic or glass
    (hard or soft).
    ~
    Holding time:
    SamPles must be analyzed as
    soon after collection as possible. but in any
    event within
    6 months.
    4~) Asbestos:
    A)
    Preservative:
    Cool to
    40
    C.
    B)
    Plastic or glass
    (hard or soft).
    ~)
    Barium:
    A)
    Preservative:
    Concentrated nitric acid to pH
    less than 2.
    If nitric acid cannot be used
    because of shipping restrictions, the sample
    may initially be preserved by icing and
    immediately shipping it to the laboratory.
    Upon receipt .in the laboratory, the sample
    must be acidified with concentrated nitric
    acid to pH less than 2.
    At the time of
    sample analysis, the sample container must be
    thoroughly rinsed with 1:1 nitric acid;
    01 L~2-Ot~.2L~.

    83
    washings must be added to the sample.
    B)
    Plastic or glass (hard or soft).
    C)
    Holding time:
    Samples must be analyzed as
    soon after collection as possible, but in any
    event within
    6 months.
    j)
    Beryllium:
    ~j
    Preservative:
    Concentrated nitric acid to PH
    less
    than
    2.
    If
    nitric
    acid
    cannot
    be
    used
    because
    of
    shipping
    restrictions,
    the
    sample
    may
    initially
    be
    preserved
    by
    icing
    and
    immediately
    shipping
    it
    to
    the
    laboratory.
    Upon
    receipt
    in
    the
    laboratory,
    the
    sample
    must
    be
    acidified
    with
    concentrated
    nitric
    acid
    to
    PH
    less
    than
    2.
    At
    the
    time
    of
    sample
    analysis,
    the
    sample
    container
    must
    be
    thorou~hly
    rinsed
    with
    1:1
    nitric
    acid;
    washings
    must
    be
    added
    to
    the
    sample.
    ~j.
    Plastic or glass
    (hard or soft).
    .~1
    Holding
    time:
    Samples
    must
    be
    analyzed
    as
    soon
    after
    collection
    as
    possible,
    but
    in
    any
    event within
    6 months.
    ~-5)
    Cadmium:
    A)
    Preservative:
    Concentrated
    nitric
    acid
    to
    pH
    less
    than
    2.
    If
    nitric
    acid
    cannot
    be
    used
    because
    of
    shipping
    restrictions,
    the
    sample
    may initially be preserved by icing and
    immediately
    shipping
    it
    to
    the
    laboratory.
    Upon receipt in the laboratory, the sample
    must
    be
    acidified
    with
    concentrated
    nitric
    acid to pH less than 2.
    At the time of
    sample analysis, the sample container must be
    thoroughly rinsed with 1:1 nitric acid;
    washings
    must
    be
    added
    to
    the
    sample.
    B)
    Plastic
    or
    glass
    (hard
    or
    soft).
    C)
    Holding time:
    Samples must be analyzed as
    soon after collection as possible, but in any
    event within
    6 months.
    4~)
    Chromium:
    A)
    Preservative:
    Concentrated
    nitric
    acid
    to
    pH
    less than 2.
    If nitric acid cannot be used
    01 L~2-OL~.25

    84
    because
    of
    shipping
    restrictions,
    the
    sample
    may
    initially
    be
    preserved
    by
    icing
    and
    immediately shipping it to the laboratory.
    Upon
    receipt
    in
    the
    laboratory,
    the
    sample
    must
    be
    acidified
    with
    concentrated
    nitric
    acid to pH less than 2.
    At the time of
    sample
    analysis,
    the
    sample
    container
    must
    be
    thoroughly
    rinsed
    with
    1:1
    nitric
    acid;
    washings must be added to the sample.
    B)
    Plastic
    or
    glass
    (hard
    or
    soft).
    C)
    Holding time:
    Samples must be analyzed as
    soon after collection as possible, but in any
    event within
    6 months.
    ~j
    Cyani~~
    ~j
    Preservative:
    Cool to 4°C. Add sodium
    hydroxide to pH
    12.
    See the analytical
    methods for information on sample
    preservation.
    ~
    Plastic or ~lass
    (hard or soft).
    ,çj
    Holding time:
    Samples must be analyzed as
    soon after collection as possible. but in any
    event within 14 days.
    ~)
    Fluoride:
    A)
    Preservative:
    None.
    B)
    Plastic or glass
    (hard or soft).
    C)
    Holding time:
    Samples must be analyzed as
    soon after collection as possible, but in any
    event within
    1 month.
    6~)
    Mercury:
    A)
    Preservative:
    Concentrated nitric acid to pH
    less than 2.
    If nitric acid cannot be used
    because of shipping restrictions, the sample
    may initially be preserved by icing and
    immediately shipping it to the laboratory.
    Upon receipt in the laboratory, the sample
    must be acidified with concentrated nitric
    acid to pH less than 2.
    At the time of
    sample
    analysis,
    the
    sample
    container
    must
    be
    thoroughly rinsed with 1:1 nitric acid;
    washings must be added to the sample.
    L2jL~26

    85
    B)
    Plastic or glass
    (hard or soft).
    C)
    Holding time:
    Samples must be analyzed as
    soon after collection as possible, but in any
    event within 28 days.
    12L
    Nickel:
    ~j
    Preservative:
    Concentrated nitric acid to pH
    less than 2.
    If nitric acid cannot be used
    because of shipping restrictions, the sample
    may
    initially
    be
    preserved
    by
    icing
    and
    immediately shipping it to the laboratory.
    UPon receipt in the laboratory. the samPle
    must be acidified with concentrated nitric
    acid to pH less than 2.
    At the time of
    sample analysis, the sample container must be
    thoroughly
    rinsed
    with
    1:1
    nitric
    acid;
    washings must be added to the sample.
    Dl
    Plastic or glass
    (hard or soft).
    Qj
    Holding time:
    Samples must be analyzed as
    soon after collection as possible.
    but in any
    event within 6 months.
    ~J)
    Nitrate, chlorinated:
    A)
    Preservative:
    Cool to 4°C.
    B)
    Plastic or glass
    (hard or soft).
    C)
    Holding time:
    Samples must be analyzed as
    soon after collection as possible, but in any
    event within 28 days.
    &12) Nitrate, non—chlorinated:
    A)
    Preservative:
    Concentrated sulfuric acid to
    pH less than 2.
    B)
    Plastic or glass
    (hard or soft).
    C)
    Holding time:
    Samples must be analyzed as
    soon after collection as possible, but in any
    event within 14 days.
    ‘91~) Nitrite:
    A)
    Preservative:
    Cool to 4°C.
    B)
    Plastic or glass (hard or soft).
    01 ~~2-Q~~,27

    86
    C)
    Holding time:
    Samples must be analyzed as
    soon after collection as possible, but in any
    event within 48 hours.
    1G~)
    Selenium:
    A)
    Preservative:
    Concentrated nitric acid to pH
    less than 2.
    If nitric acid cannot be used
    because of shipping restrictions, the sample
    may initially be preserved by icing and
    immediately shipping it to the laboratory.
    Upon receipt in the laboratory, the sample
    must be acidified with concentrated nitric
    acid to pH less than 2.
    At the time of
    sample analysis, the sample container must be
    thoroughly
    rinsed
    with
    1:1
    nitric
    acid;
    washings must be added to the sample.
    B)
    Plastic or glass (hard or soft).
    C)
    Holding time:
    Samples must be analyzed as
    soon after collection as possible,
    but in any
    event within
    6 months.
    ~l
    Thallium:
    ~j
    Preservative:
    Concentrated nitric acid to PH
    less than 2.
    If nitric acid cannot be used
    because of shipping restrictions, the sample
    may initially be preserved by icing and
    immediately shipping it to the laboratory.
    Upon receipt in the laboratory. the sample
    must be acidified with concentrated nitric
    acid to pH less than 2.
    At the time of
    sample analysis. the sample container must be
    thoroughly
    rinsed
    with
    1:1
    nitric
    acid:
    washings must be added to the sample.
    Dl
    Plastic or glass
    (hard or soft).
    ci
    Holding time:
    Samples must be analyzed as
    soon after collection as possible, but in anY
    event within
    6 months.
    BOARD NOTE:
    Derived from 40 CFR 141.23(k)
    (4)
    (1992)
    as amended and renumbered to 40 CFR
    141.23
    (k)(5)
    at 57 Fed. Req. 31840
    (July 17.
    1992).
    e)
    Analyses under this Subpart must be conducted by
    laboratories that received approval from USEPA or the
    Agency.
    Laboratories may conduct sample analyses for
    2
    U
    t~
    2 8

    87
    antimony. beryllium,
    cyanide, nickel, and thallium
    under provisional certification granted by the Agency
    until January
    1, 1996.
    The Agency shall approvccertify
    laboratories to conduct analyses for antimony.
    asbestos, barium, beryllium,
    cadmium, chromium,
    cyanide,
    fluoride, mercury, nickel. nitrate, nitrite~
    and—selenium, and thallium if the laboratory:
    1)
    Analyzes performance evaluation samples, provided
    by the Agency pursuant to
    35 Ill. Adm. Code
    183.125(c), that include those substances at
    levels not in excess of levels expected in
    drinking water; and
    2)
    Achieves quantitative results on the analyses
    within the following acceptance limits:
    ~j
    Antimony: ±30
    at greater than or equal to
    0.006 mg/L.
    BOARD
    NOTE:
    40 CFR 141.23(k) (6).
    as
    renumbered
    from
    paragraph
    (k)
    (5)
    and
    amended
    at 40 CFR 31840
    (July 17,
    1992), actually
    lists
    “6#30” as the acceptance limit for
    antimony.
    The Board corrected this to
    “±
    30”
    based on the discussion at 57 Fed. Reg.
    31801.
    A~) Asbestos7~ 2 standard deviations based on
    study statistics.
    Bc)
    BariumT~±15
    at greater than or equal to
    0.15
    mg/L.
    21
    Beryllium: ±15
    at greater than or eaual to
    0.001
    mqIL.
    G~) Cadmium7~±20
    at greater than or equal to
    0.002 mg/L.
    B~) ChromiumT~±15
    at greater than or equal to
    0.01 mg/L.
    Qj
    Cyanide: ±25
    at greater than or equal to
    0.1 mg/i.
    ~fi)
    FluorideT~±10
    at
    I to 10 mg/L.
    ~)
    Mercury7~±30
    at greater than or equal to
    0.0005 mg/L.
    ~
    Nickel: ±15
    at greater than or
    equal
    to
    ‘~:~:.
    t~)~-;c_~j.

    88
    0.01 mgfL.
    G~) Nitrate~~±10
    at greater than or equal to
    0.4 mg/L.
    HL)
    Nitrite~j ±15
    at greater than or equal to
    0.4 mg/L.
    ~j)
    SeleniumT~ ± 20
    at
    greater
    than
    or
    equal
    to
    0.01
    mg/L.
    ~j
    Thallium: ±30
    at greater than or equal to
    0.002 mg/L.
    BOARD NOTE:
    Derived from 40 CFR 141.23(k) (5)
    (1992), as amended and renumbered to 40 CFR
    141.23
    (k) (6)
    at
    57 Fed. Req. 31840—41
    (July
    17,
    1992),
    and
    the
    discussion
    at
    57
    Fed.
    Req.
    31809.
    ~j
    Sample preservation, turbidity measurement, and
    digestion.
    For
    all
    analytical
    methods
    marked
    with
    an
    asterisk
    (*)
    in
    subsection
    (a)
    above,
    the
    following
    must
    be
    done:
    fl
    The
    samples
    must
    be
    preserved
    with
    concentrated
    nitric
    acid
    (~H
    2)
    fl
    Turbidity
    must
    be
    measured
    on
    the
    preserved
    samples
    immediately
    prior
    to
    analysis;
    and
    ~j
    The sample must be analyzed as follows:
    ~J.
    Directly
    for
    total
    metals
    if
    the
    turbidity
    is
    less
    than
    1
    NTU.
    or
    Dl
    After
    digestion.
    using
    the
    total
    recoverable
    technique
    as
    defined
    in
    the
    ap~1icable
    method,
    if the turbidity is
    1 NTU or greater.
    BOARD
    NOTE:
    Derived
    from
    40
    CFR
    141.23(k) (4). footnote 6.
    as added at 57 Fed.
    Reg.
    31840
    (July
    17,
    1992).
    (Source:
    Amended
    at
    17
    Ill.
    Reg.
    _________,
    effective
    __________
    Section
    611.612
    Monitoring
    Requirements
    for
    Old
    Inorganic
    MCLs
    a)
    Analyses
    for
    the
    purpose
    of
    determining
    compliance
    with
    the
    old
    inorganic
    MCLs
    of
    Section
    611.300
    are
    required
    UI ~.2-0t~3O

    89
    as follows:
    1)
    Analyses
    for
    all
    CWS5
    utilizing
    surface
    water
    sources must be repeated at yearly intervals.
    2)
    Analyses for all CWS5 utilizing only groundwater
    sources must be repeated at three—year intervals.
    3)
    This
    subsection
    corresponds
    with
    40
    CFR
    141.23(l)(3)
    (1992),
    which
    requires
    monitoring
    for
    the repealed old MCL for nitrate at a frequency
    specified by the state..
    The Board has followed
    the
    USEPA
    lead
    and
    repealed
    that
    old
    MCL.
    This
    statement maintains structural consistency with
    USEPA
    rules
    4)
    This
    subsection
    corresponds
    with
    40
    CFR
    141.23(l)(4)
    (1992),
    which
    authorizes
    the
    state
    to
    determine compliance and initiate enforcement
    action.
    This
    authority
    exists
    through
    the
    authorization of the Act, not through federal
    rules.
    This
    statement
    maintains
    structural
    consistency
    with
    USEPA
    rules.
    b)
    If
    the
    result
    of
    an
    analysis
    made
    under
    subsection
    (a)
    above indicates that the level of any contaminant
    listed in Section 611.300 exceeds the old MCL, the
    supplier
    shall
    report
    to
    the
    Agency
    within
    7
    days
    and
    initiate
    three
    additional
    analyses
    at
    the
    same
    sampling
    point
    within
    one
    month.
    c)
    When
    the
    average
    of
    four
    analyses
    made
    pursuant
    to
    subsection
    (b)
    above, rounded to the same number of
    significant figures as the old MCL for the substance in
    question, exceeds the old MCL, the supplier shall
    notify
    the
    Agency
    and
    give
    notice
    to
    the
    public
    pursuant to Subpart T of this Part.
    Monitoring after
    public notification must be at a frequency designated
    by the Agency by a SEP granted pursuant to Section
    611.110
    and
    must
    continue
    until
    the
    old
    MCL
    has
    not
    been exceeded in two successive samples or until a
    different monitoring schedule becomes effective as a
    condition to a variance, an adjusted standard, a site
    specific rule, an enforcement action,
    or another SEP
    granted pursuant to Section 611.110.
    d)
    This subsection corresponds with 40 CFR 141.23(o)
    (1992), which pertains to monitoring for the repealed
    old MCL for nitrate.
    The Board has followed the USEPA
    action
    and
    repealed
    that
    old
    MCL.
    This
    statement
    maintains structural consistency with USEPA rules.
    0
    1
    2
    0
    ~
    3
    1

    90
    e)
    This subsection corresponds with 40 CFR 141.23(p)
    (1992), which pertains to the use of existing data up
    until a date long since expired.
    The Board did not
    adopt the original provision in R88-26.
    This statement
    maintains
    structural
    consistency
    with
    USEPA
    rules.
    f)
    Analyses conducted to determine compliance with the old
    MCLs of Section 611.300 must be made in accordance with
    the following methods, incorporated by reference in
    Section
    611.102.
    1)
    Arsenic:
    A)
    ASTM:
    i)
    Method
    D2972-88A,
    or
    ii
    Method
    D2972-88B;
    B)
    Standard Methods:
    i)
    Method
    307A,
    or
    ii)
    Method
    307B;
    C)
    USGS Methods, Method 1—1062-85;
    D)
    USEPA Inorganic Methods:
    i)
    Method
    206.2,
    or
    ii)
    Method
    206.3;
    or
    E)
    ICP
    Method 200.7, as supplemented by appendix
    200. 7A.
    ..~‘
    ~
    “1
    i~j
    ttanaara nc’~noas: Method 308
    i)
    Method
    208.1,
    or
    ii)
    Method 208. 2; or
    C)
    ICP Mothod 200.7,
    as su~ol
    200.7A.
    ~2)
    Fluoride:
    The methods specified in Section
    611.611(c)
    shall apply for the purposes of this
    Section.
    01
    L~2-0~32

    91
    4,~)
    Cyanide.
    until
    the
    cyanide
    MCL
    of
    Section
    611.300
    is no longer effective:
    A)
    Standard Methods:
    Method 412D4500-CN D.
    E,
    L_~re~L
    B)
    USEPA
    Inorganic
    Methods:
    Nethod~ 335.1.
    335.2--,
    or 335.3; or
    ~
    ASTN
    Methods
    D2036-89A
    or
    B.
    ~54) Iron:
    A)
    Standard
    Methods:
    Method
    303A;
    B)
    USEPA
    Inorganic
    Methods:
    i)
    Method 236.1,
    or
    ii)
    Method 236.2; or
    C)
    ICP Method 200.7,
    as supplemented by appendix
    200. 7A.
    6~) Manganese:
    A)
    ASTM:
    Method
    D858-84;
    B)
    Standard Methods:
    Method 303A;
    C)
    USEPA
    Inorganic
    Methods:
    i)
    Method
    243.1,
    or
    ii)
    Method 243.2; or
    D)
    ICP
    Method
    200.7,
    as
    supplemented
    by
    appendix
    200.7A.
    ~7-6)
    Zinc:
    A)
    Standard
    Methods:
    Method
    303A;
    or
    B)
    USEPA
    Inorganic
    Methods:
    i)
    Method
    289.1,
    or
    ii)
    Method
    289.2.
    BOARD
    NOTE:
    The
    provisions
    of
    subsections
    (a)
    through
    (f)
    above
    apply
    to
    additional
    state
    requirements.
    L1~L:.2-O’i~.33

    92
    Subsections
    (a) through
    (f) (3) above
    derived from 40 CFR 141.23(1) through
    (q)
    (1992).
    The Board has deleted
    several analytical methods codified by
    USEPA at 40 CFR 141.23(q)
    (formerly 40
    CFR 141.23(f))
    because the MCLs of 40
    CFR 141.11 expired for those
    contaminants on July 30 and November
    30,
    1992.
    Subsection
    (f)
    (~)
    above relates
    to a contaminant for which USEPA
    specifies a~MCL, but for which it
    repealed the analytical method.
    Subsections
    (f)
    (4)
    through
    (f) (Si) above
    relate exclusively to additional state
    requirements.
    The predecessor to
    subsections
    (a) through
    (e)
    above were
    formerly codified as Section 611.601.
    The predecessor to subsection
    (f) above
    was formerly codified as Section
    611. 606..
    (Source:
    Amended at 17 Ill. Reg.
    _________,
    effective
    __________
    ____________________________)
    SUBPART 0:
    ORGANIC MONITORING
    AND
    ANALYTICAL REQUIREMENTS
    Section 611.640
    Definitions
    The following terms are defined for use in this Subpart only.
    Additional definitions are located in Section 611.102.
    “Old MCL” means an MCL in Section 611.310.
    These
    include the MCL5 identified as “aUditional state
    requirements” and those derived from 40 CFR 141.12, but
    excluding TTHM.
    “Old MCLs” includes the Section
    611.310 MCL5 for the following contaminants:
    Aldrin
    2, 4—D
    DDT
    Dieldrin
    Endrin
    Heptachior
    Heptachlor
    epoxide
    BOARD NOTE:
    2,4-D, heptachlor, and heptachlor
    epoxide are also “Phase II SOC5”.
    The additional
    state requirements of Section 611.310 impose a
    more stringent “old NCL” for each of these
    compounds than that imposed on them as Phase II
    SOCs by Section 611.311.
    However, the
    requirements
    for sampling and monitoring for these
    ~
    ‘)_flj,
    U
    ri...
    ~

    93
    compounds as Phase II SOCs and the consequences of
    their detection and violation of their revised
    MCL5 is more stringent as Phase
    II SOC5.
    “Phase II SOC5” means:
    Alachlor
    Atrazme
    Carbofuran
    Chlordane
    Dibromochloropropane
    Ethylene dibromide
    Heptachlor
    Heptachior epoxide
    Lindane
    Methoxychlor
    Polychlorinated biphenyls
    Toxaphene
    2
    ,
    4—D
    2,4,5—TP
    BOARD NOTE:
    These are organic contaminants
    regulated at 40 CFR 141.61(c) (1) through
    (C)
    (18)
    (1992).
    The MCL5 for these contaminants are
    located at Section 611.311.
    More stringent MCL5
    for heptachlor, heptachlor epoxide,
    and 2,4—D are
    found as “additional state requirements”
    in
    Section
    611.310.
    “Phase IIB SOCs” means:
    Aldicarb
    Aldicarb
    Sulfone
    Aldicarb Sulfoxide
    Pentach1oropheno1
    BOARD
    NOTE:
    These are organic contaminants
    regulated
    at
    40
    CFR
    141.61(c)
    (1)
    through
    (c)
    (18)
    (1992).
    The NCL5 for these contaminants are
    located at Section 611.311.
    —The effectiveness
    of the Section 611.311 MCLs for aldicarb, aldicarb
    sulfone, and aldicarb sulfoxide are administra-
    tively stayed until the Board takes further
    administrative action to end this stay.
    However,
    suppliers must monitor for these three SOC5
    pursuant to Section 611.648.
    See 40 CFR 141.6(g)
    (1992)
    and 57 Fed. Reg. 22178
    (May 27,
    1992).
    “Phase V SOCS” means:
    Benzoa)
    pyrene
    Dalapon
    Di (2—ethvlhexvl)adipate
    Di (2—ethylhexyflphthalate
    0
    ~2-0~35

    94
    Dinoseb
    Diquat
    Endotha11
    Endrin
    Glv~hosate
    Hexachlorobenzene
    Hexachlorocyclopentadiene
    Oxamvl
    Picloram
    Simazine
    2.3,7,8—TCDD
    BOARD NOTE:
    These
    are
    organic
    contaminants
    re~ulated
    at
    40
    CFR
    141.61(c)
    (19)
    through
    (c)
    (33)
    (1992).
    The MCLs for these contaminants are
    located at Section 611.311, and become effective
    January 17,
    1994.
    “Phase I VOCs” means:
    Benzene
    Carbon tetrachloride
    p—Dichlorobenzene.
    1,2-Dichloroethane
    1, 1—Dichloroethylene
    1,1,1—Trichloroethane
    Trichloroethylene
    Vinyl chloride
    BOARD
    NOTE:
    These are the organic contaminants
    regulated at 40 CFR 141.61(a) (1)
    through
    (a) (8)
    (1992).
    The MCL5 for these contaminants are
    located at Section 611.311(a).
    “Phase II VOC5” means:
    o—Dichlorobenzene
    cis-1,2—Dichloroethylene
    trans—i,2-Dichioroethylene
    1,2-Dichioropropane
    Ethylbenzene
    Monochlorobenzene
    Styrene
    Tetrachloroethylene
    Toluene
    Xylenes
    (total)
    BOARD NOTE:
    These are organic contaminants
    regulated at 40 CFR 141.61(a) (9) through
    (a) (18)
    (1992).
    The NCL5 for these contaminants are in
    Section 611.311(a)
    “Phase V VOCs” means:
    Dichloromethane
    o
    L~
    2
    U
    L~
    3 6

    95
    1.2
    .
    4—Trichlorobenzene
    1.1.2—Trichioroethane
    BOARD
    NOTE:
    These
    are
    the
    organic
    contaminants
    regulated
    at
    40
    CFR
    141.61(a)
    (19)
    throuah
    (a)
    (21)
    (1992).
    The MCLs for these contaminants are
    located at Section 611.311(a)
    and become effective
    January 17,
    1994.
    “Revised
    MCL”
    means
    an
    MCL
    in
    Section
    611.311.
    This
    term
    includes
    MCLs
    for
    “Phase
    I
    VOCs”,
    “Phase
    II
    VOCs”~
    “Phase V VOCs”, and “Phase II SOCs”, Phase IIB SOCs,
    and “Phase V
    SOCstl.
    (Source:
    Amended
    at
    17
    Ill.
    Reg.
    _________,
    effective
    __________
    Section
    611.646
    Phase
    I~ and—Phase
    II,
    and
    Phase
    V
    Volatile
    Organic
    Contaminants
    Monitoring
    of
    the
    Phase
    I.
    Phase
    II.
    and
    Phase
    V
    VOC5
    and
    Phase
    ~-I VOC-s
    for
    the
    purpose
    of
    determining
    compliance
    with
    the
    NCL
    must
    be
    conducted
    as
    follows:
    a)
    Definitions.
    As
    used
    in
    this
    Section:
    “Detect” and “detection” means that the
    contaminant of interest is present at a level
    greater than or equal to the “detection limit”.
    “Detection limit” means 0.0005 mg/L.
    BOARD
    NOTE:
    Derived
    from
    40
    CFR
    141.24
    (f)
    (7),
    (f)(11),
    (f)(14)(i), and
    (f)(20)
    (1992).
    This is
    a “trigger level”
    for Phase
    I, Phase II.
    and Phase
    y
    VOC5 and Phase II VOCs inasmuch as it prompts
    further action.
    The use of the term “detect” in
    this section is not intended to include any
    analytical capability of quantifying lower levels
    of any contaminant, or the “method detection
    limit”.
    Note, however that certain language at
    the end of federal paragraph
    (f) (20)
    is capable of
    meaning that the “method detection limit” is used
    to derive the “detection limit”.
    The Board has
    chosen to disregard that language at the end of
    paragraph
    (f) (20) in favor of the more direct
    language of paragraphs
    (f) (7)
    and
    (f) (11).
    “Method detection limit”,
    as used in subsections
    (q)
    and
    (t)
    below
    means
    the
    minimum
    concentration
    of a substance that can be measured and reported
    with 99 percent confidence that the analyte
    concentration is greater than zero and is
    (1
    ~2-OL~.37

    96
    determined from analysis of a sample in a given
    matrix containing the analyte.
    BOARD NOTE:
    Derived from 40 CFR 136, Appendix B
    (1992).
    The method detection limit is determined
    by the procedure set forth in 40 CFR 136, Appendix
    B.
    See subsection
    (t)
    below.
    b)
    Required sampling.
    Each supplier shall take a minimum
    of one sample at each sampling point at the times
    required in subsection
    (u)
    below.
    C)
    Sampling points.
    1)
    Sampling points for GWS5.
    Unless otherwise
    provided by SEP,
    a GWS supplier shall take at
    least one sample from each of the following
    points:
    each entry point that is representative
    of each well after treatment.
    2)
    Sampling points for SWS5 and mixed systems.
    Unless otherwise provided by SEP,
    a SWS or mixed
    system supplier shall sample from each of the
    following points:
    A)
    Each entry point after treatment; or
    B)
    Points in the distribution system that are
    representative of each source.
    3)
    The supplier shall take each sample at the same
    sampling point unless the Agency has granted a SEP
    that designates another location as more
    representative of each source, treatment plant,
    or
    within the distribution system.
    4)
    If a system draws water from more than one source,
    and the sources are combined before distribution,
    the supplier shall sample at an entry point during
    periods of normal operating conditions when water
    is representative of all sources being used.
    BOARD NOTE:
    Subsections
    (b)
    and
    (c)
    above derived
    from 40 CFR 141.24(f) (I) through
    (f)(3)
    (1992).
    d)
    Each CWS and NTNCWS supplier shall take four
    consecutive quarterly samples for each of the Phase I
    VOC5,
    excluding vinyl chloride,
    and Phase II VOCs
    during each compliance period, beginning in the
    compliance period starting January
    1,
    1993in the
    initial compliance period.
    ~J
    j
    L42-jJi~38

    97
    e)
    Reduction to annual monitoring frequency.
    If the
    initial monitoring for the Phase
    I. Phase II, and Phase
    V VOCs and Phase II VOCs as allowed in subsection
    (r) (1) below has been completed by December 31,
    1992,
    and the supplier did not detect any of the Phase
    I
    VOCs,
    including vinyl chloride, e~—PhaseII, or Phase V
    VOC5, then the supplier shall take one sample annually
    beginning January
    1,
    1993in the initial compliance
    period.
    f)
    GWS reduction to triennial monitoring frequency.
    After
    a minimum of three years of annual sampling, GWS
    suppliers that have not previously detected any of the
    Phase I VOC5,
    including vinyl chloride, e~’—PhaseII. or
    Phase V
    VOC5 shall take one sample during each three—
    year compliance period.
    g)
    A CWS or NTNCWS supplier that has completed the initial
    round of monitoring required by subsection
    (d) above
    and which did not detect any of the Phase
    I VOCs,
    including vinyl chloride, and—Phase II. and Phase V
    VOCs may apply to the Agency for a SEP pursuant to
    Section 611.110 that releases
    it from the requirements
    of subsection
    (e) or
    (f)
    above.
    A supplier that serves
    fewer than 500 service connections may apply to the
    Agency for a SEP pursuant to Section 611.110 that
    releases it from the requirements of subsection
    (d)
    above as to 1,2,4—trichlorobenzene.
    BOARD NOTE:
    Derived from 40 CFR 141.24(f) (7) and
    (f) (10)
    (1992),
    as amended at 57 Fed. Req. 31841
    (July
    17,
    1992). and the discussion at 57 Fed. Req. 31825
    (July 17,
    1992).
    Provisions concerning the term of the
    waiver appear below in subsections
    (i) and
    (j)
    below.
    The definition of “detect”, parenthetically added to
    the federal counterpart paragraph is in subsection
    (a)
    above.
    h)
    Vulnerability Assessment.
    The Agency shall consider
    the factors of Section 611.110(e)
    in granting a SEP
    from the requirements of subsections
    (d).
    (e)~or
    (f)
    above sought pursuant to subsection
    (g)
    above.
    i)
    A SEP issued to a GWS pursuant to subsection
    (g) above
    is for a maximum of six years, except that a SEP as to
    the subsection
    (d)
    above monitoring for 1,2.4-tn—
    chlorobenzene
    shall
    apply
    only
    to
    the
    initial
    round
    of
    monitoring.
    As a condition of
    a SEP, except as to a
    SEP
    from the initial round of subsection
    (d) above
    monitoring for 1.2,4-trichlorobenzene. the supplier
    shall, within 30 months after the beginning of the
    period for which the waiver was issued, reconfirm its
    0! ~2-0L~.39

    98
    vulnerability assessment required by subsection
    (h)
    above and submitted pursuant to subsection
    (g)
    above,
    by taking one sample at each sampling point and
    reapplying for a SEP pursuant to subsection
    (g)
    above.
    Based on this application, the Agency shall either:
    1)
    If it determines that the PWS meets the standard
    of Section 611.610(e),
    issue a SEP that reconfirms
    the prior SEP for the remaining three-year
    compliance period of the six—year maximum
    term;
    or,
    2)
    Issue a new SEP requiring the supplier to sample
    annually.
    BOARD NOTE:
    This provision does not apply to SWS5
    and mixed systems.
    j)
    Special considerations for SEPS for SWS and mixed
    systems.
    1)
    The Agency must determine that a SWS is not
    vulnerable before issuing a SEP pursuant to a SWS
    supplier.
    A
    SEP
    issued
    to
    a
    SWS
    or
    mixed
    system
    supplier pursuant to subsection
    (g)
    above is for a
    maximum of one compliance period; and
    2)
    The Agency may require,
    as a condition to a SEP
    issued to a SWS or mixed supplier, that the
    supplier take such samples for Phase I, Phase II,
    and Phase V VOC5 and Phase
    II VOCs at such a
    frequency as the Agency determines are necessary,
    based on the vulnerability assessment.
    BOARD NOTE:
    There is a great degree of similarity
    between 40 CFR 141.24(f) (7), the provision
    applicable to GWS5,
    and 40 CFR 141.24(f) (10), the
    provision for SWS5.
    The Board has consolidated
    the common requirements of both paragraphs into
    subsection
    (g)
    above.
    Subsection
    (j)
    above
    represents the elements unique to SWS5 and mixed
    systems, and subsection
    (i)
    above relates to GWSs.
    Although 40 CFR 141.24(f) (7) and
    (f) (10) are
    silent as to mixed systems, the Board has included
    mixed systems with SWSs because this best follows
    the federal scheme for all other contaminants.
    k)
    If one of the Phase I VOCs,
    excluding vinyl chloride,
    er—Phase II, or Phase V VOC5 is detected in any sample,
    then:
    1)
    The supplier shall monitor quarterly for that
    L.
    7
    ii
    i4
    fJ

    99
    contaminant at each sampling point that resulted
    in a detection.
    2)
    Annual monitoring.
    A)
    The Agency shall grant a SEP pursuant to
    Section 611.110 that allows a supplier to
    reduce the monitoring frequency to annual at
    a sampling point if it determines that the
    sampling point is reliably and consistently
    below the MCL.
    B)
    A request for a SEP must include the
    following minimal information:
    i)
    For a GWS, two quarterly samples.
    ii)
    For
    a
    SWS or mixed system,
    four
    quarterly samples.
    C)
    In issuing a SEP, the Agency shall specify
    the
    level
    of
    the
    contaminant
    upon
    which
    the
    “reliably and consistently” determination was
    based.
    All SEPs that allow less frequent
    monitoring based on an Agency “reliably and
    consistently”
    determination
    shall
    include
    a
    condition
    requiring
    the
    supplier
    to
    resume
    quarterly
    monitoring
    pursuant
    to
    subsection
    (k)
    (1)
    above
    if
    it
    violates
    the
    MCL
    specified
    by
    Section
    611.311.
    3)
    Suppliers
    that
    monitor
    annually
    shall
    monitor
    during
    the
    quarter(s)
    that
    previously
    yielded
    the
    highest analytical result.
    4)
    Suppliers that do not detect a contaminant at a
    sampling
    point
    in
    three
    consecutive
    annual,
    samples
    may
    apply
    to
    the
    Agency
    for
    a
    SEP
    pursuant
    to
    Section
    611.110
    that
    allows
    it
    to
    discontinue
    monitoring
    for
    that
    contaminant
    at
    that
    point,
    as
    specified in subsection
    (g)
    above.
    5)
    A GWS supplier that has detected one or more of
    the two—carbon contaminants listed in subsection
    (k) (5)
    (A)
    below
    shall
    monitor
    quarterly
    for
    vinyl
    chloride
    as
    described
    in
    subsection
    (k) (5)
    (B)
    below,
    subject
    to
    the
    limitation
    of
    subsection
    (k) (5) (C) below.
    A)
    Two-carbon
    contaminants
    (Phase
    I
    or
    II
    VOC):
    1,2-Dichloroethane
    (Phase
    I)

    100
    1,1-Dichloroethylene
    (Phase I)
    cis—1, 2-Dichloroethylene (Phase II)
    trans-i,2-Dichloroethylene (Phase II)
    Tetrachloroethylene (Phase II)
    1,1,1-Trichioroethylene (Phase
    I)
    Trichloroethylene (Phase I)
    B)
    The supplier shall sample quarterly for vinyl
    chloride at each sampling point at which it
    detected one or more of the two—carbon
    contaminants listed in subsection
    (k) (5) (A)
    above.
    C)
    The Agency shall grant a SEP pursuant to
    Section 611.110 that allows the supplier to
    reduce the monitoring frequency for vinyl
    chloride at any sampling point to once in
    each three-year compliance period if it
    determines that the supplier has not detected
    vinyl chloride in first sample required by
    subsection
    (k) (5) (B)
    above.
    1)
    Quarterly monitoring following MCL violations.
    1)
    Suppliers that violate an MCL for one of the Phase
    I VOC5,
    including vinyl chloride, o~—PhaseII,
    or
    Phase V VOC5,
    as determined by subsection
    (0)
    below,
    shall monitor quarterly for that
    contaminant, at the sampling point where the
    violation occurred, beginning the next quarter
    after the violation.
    2)
    Annual monitoring.
    A)
    The Agency shall grant a SEP pursuant to
    Section 611.110 that allows a supplier to
    reduce the monitoring frequency to annually
    if it determines that the sampling point is
    reliably and consistently below the MCL.
    B)
    A request for a SEP must include the
    following minimal information:
    four
    quarterly samples.
    C)
    In issuing a SEP, the Agency shall specify
    the level of the contaminant upon which the
    “reliably and consistently” determination was
    based.
    All SEPs that allow less frequent
    monitoring based on an Agency “reliably and
    consistently” determination shall include a
    condition requiring the supplier to resume
    quarterly monitoring pursuant to subsection
    .-‘
    ,-_,
    0
    I4~-u~2

    101
    (l)(1)
    above if it violates the MCL specified
    by Section 611.311.
    D)
    The supplier shall monitor during the
    quarter(s)
    that previously yielded the
    highest analytical result.
    m)
    Confirmation samples.
    The Agency may issue a SEP
    pursuant to Section 610.110 to require a supplier to
    use a confirmation sample for results that it finds
    dubious for whatever reason.
    The Agency must state its
    reasons for issuing the SEt~if the SEP is Agency-
    initiated.
    1)
    If a supplier detects any of the Phase I. Phase
    II,
    or Phase V VOCs or Phase II VOCs in
    a sample,
    the supplier shall take a confirmation sample as
    soon as possible, but no later than 14 days after
    the supplier receives notice of the detection.
    2)
    Averaging is as specified in subsection
    (o)
    below.
    3)
    The Agency shall delete the original or
    confirmation sample if it determines that a
    sampling error occurred,
    in which case the
    confirmation sample will replace the original or
    confirmation sample.
    n)
    This subsection corresponds with 40 CFR 141.24(f) (14),
    an optional USEPA provision relating to compositing of
    samples that USEPA does not require for state programs.
    This statement maintains structural consistency with
    USEPA rules.
    o)
    Compliance with the MCLS for the Phase I, Phase II, and
    Phase V VOCs and Phase II VOCs must be determined based
    on the analytical results obtained at each sampling
    point.
    1)
    For suppliers that conduct monitoring at a
    frequency greater than annual, compliance is
    determined by a running annual average of all
    samples taken at each sampling point.
    A)
    If the annual average of any sampling point
    is greater than the MCL, then the supplier is
    out of compliance.
    B)
    If the initial sample or a subsequent sample
    would cause the annual average to exceed the
    MCL, then the supplier is out of compliance
    immediately.
    L~.
    2
    -
    U
    i~.
    L~
    3

    102
    C)
    Any samples below the detection limit shall
    be deemed as zero for purposes of determining
    the annual average.
    2)
    If monitoring is conducted annually, or less
    frequently,
    the supplier is out of compliance if
    the level of a contaminant at any sampling point
    is greater than the MCL.
    If a confirmation sample
    is taken,
    the determination of compliance is based
    on the average of two samples.
    3)
    Public notice for a supplier out of compliance
    is
    governed by Subpart T of this Part.
    p)
    Analyses for. the Phase
    I, Phase II. and Phase V VOCs
    and Phase II VOCs must be conducted using the following
    methods.
    These methods are contained in USEPA Organic
    Methods, incorporated by reference in Section 611.102:
    1)
    Method SO2.l~j
    “Volatile Halogenated Organic
    Chemicals in Water by Purge and Trap Gas
    Chromatography--”~
    2)
    Method 5O2.2-~-j.“Volatile Organic Compounds in
    Water by Purge and Trap Capillary Column Gas
    Chromatography with Photoionization and
    Electrolytic Conductivity Detectors in Series,-”~
    3)
    Method 503.1,-:
    “Volatile Aromatic and Unsaturated
    Organic Compounds in Water by Purge and Trap Gas
    Chromatography~-”~
    4)
    Method 524.1,-j
    “Measurement of Purgeable Organic
    Compounds in Water by Purged Column Gas
    Chromatography/Mass Spectrometry~-”~
    5)
    Method 524.2,-~“Measurement of Purgeable Organic
    Compounds in Water by Capillary Column Gas
    Chromatography/Mass Spectrometry,-”~
    q)
    Analysis under this Section must only be conducted by
    laboratories that have received approval by USEPA or
    the Agency according to the following conditions:
    1)
    To receive conditional approval to conduct
    analyses for the Phase I VOCs,
    excluding vinyl
    chloride, and Phase II VOCs,
    and Phase V VOC5, the
    laboratory must:
    A)
    Analyze performance evaluation samples that
    include these substances provided by the
    Agency pursuant to 35 Ill. Adm. Code
    01 1~2-0~LtL~

    103
    183.125(c)
    ;
    B)
    Achieve the quantitative acceptance limits
    under subsections
    (q) (1) (C)
    and
    (q) (1) (D)
    below for at least 80 percent of the Phase
    I
    VOCs, excluding vinyl chloride, er—Phase II
    VOC5, except vinyl chloride,
    or Phase V VOC5
    C)
    Achieve quantitative results on the analyses
    performed under subsection
    (q) (1) (A) above
    that are within ±20 percent of the actual
    amount of the substances in the performance
    evaluation sample when the actual amount is
    greater than or equal to 0.010 mg/L;
    D)
    Achieve quantitative results on the analyses
    performed under subsection
    (q) (1) (A) above
    that are within ±40 percent of the actual
    amount of the substances in the performance
    evaluation sample when the actual amount is
    less than 0.010 mg/L;
    and
    E)
    Achieve a method detection limit of 0.0005
    mg/L, according to the procedures in 40 CFR
    136,
    appendix B, incorporated by reference in
    Section 611.102.
    2)
    To receive conditional approval to conduct
    analyses for vinyl chloride the laboratory must:
    A)
    Analyze performance evaluation samples
    provided by the Agency pursuant to 35 Ill.
    Adm. Code 183.125(c);
    B)
    Achieve quantitative results on the analyses
    performed under subsection
    (q) (2) (A) above
    that are within ±40 percent of the actual
    amount of vinyl chloride in the performance
    evaluation sample;
    C)
    Achieve a method detection limit of 0.0005
    mg/L, according to the procedures in 40 CFR
    136, appendix B,
    incorporated by reference in
    Section 611.102; and
    D)
    Obtain certification pursuant to subsection
    (q) (1)
    above for Phase
    I VOC5,
    excluding
    vinyl chloride, and—Phase II VOCs, and Phase
    V VOC5.
    r)
    Use of existing data.
    ~
    q,
    ~‘

    104
    1)
    The Agency shall allow the use of data collected
    after January
    1,
    1988 but prior to the effective
    date of this Section, pursuant to Agency sample
    request letters,
    if it determines that the data
    are generally consistent with the requirements of
    this Section.
    2)
    The Agency shall grant a SEP pursuant to Section
    611.110 that allows
    a supplier to monitor annually
    beginning January
    1, 1993in the initial compliance
    period if it determines that the supplier did not
    detect any Phase I~11CC or Phase II. or Phase V
    VOC using existing data allowed pursuant to sub-
    section
    (r) (1)
    above.
    s)
    The Agency shall,
    by SEP,
    increase the number of
    sampling points or the frequency of monitoring if it
    determines that it is necessary to detect variations
    within the PWS.
    t)
    Each laboratory approved for the analysis of Phase I~
    110Cc or Phase II,
    or Phase V VOCs pursuant to
    subsection
    (q) (1)
    or
    (q) (2)
    above shall:
    1)
    Determine the method detection limit
    (MDL),
    as
    defined in 40 CFR 136, Appendix B, incorporated by
    reference in Section 611.102,
    at which it is
    capable of detecting the Phase
    I. Phase II, and
    Phase V VOCs and Phase II VOCS
    and,
    2)
    Achieve an MDL for each Phase I~VOC and-Phase II~
    and Phase V VOC that is less than or equal to
    0.0005 mg/L.
    u)
    Each supplier shall monitor, within each compliance
    period, at the time designated by the Agency by SEP
    pursuant to Section 611.110.
    BOARD NOTE:
    Derived from 40 CFR 141.24(f)
    (1992),
    as
    amended at 57 Fed. Req. 31841
    (July 17.
    1992).
    (Source:
    Amended at 17 Ill. Reg.
    _________,
    effective
    __________
    ____________________________
    )
    Section 611.648
    Phase II. Phase IIB. and Phase V Synthetic
    Organic Contaminants
    Analysis of the Phase II, Phase IIB. and Phase V SOC5 for the
    purposes of determining compliance with the MCL must be conducted
    as follows:
    a)
    Definitions.
    As used in this Section:
    01
    ~

    105
    “Detect or detection” means that the contaminant
    of interest is present at a level greater than or
    equal to the “detection limit”.
    “Detection limit” means the level of the
    contaminant of interest that is specified in
    subsection
    (r)
    below.
    BOARD
    NOTE:
    This is a “trigger level” for Phase
    II, Phase
    IIB, and Phase V SOC5 inasmuch as it
    prompts further action.
    The use of the term
    “detect” or “detection” in this section is not
    intended to include any analytical capability of
    quantifying lower levels of any contaminant, or
    the “method detection limit”.
    b)
    Required sampling.
    Each supplier shall take a minimum
    of one sample at each sampling point at the times
    required in subsection
    (q)
    below.
    BOARD NOTE:
    USEPA stayed the effective date of the
    MCLs for aldicarb, aldicarb sulfone, and aldicarb
    sulfoxide at 57 Fed.
    Reg. 22178
    (May 27,
    1991).
    Section 611.311(c)
    includes this stay.
    However,
    despite the stay of the effectiveness of the MCL5 for
    these three SOCs,
    suppliers must monitor for them.
    c)
    Sampling points.
    1)
    Sampling points for GWSs.
    Unless otherwise
    provided by SEP,
    a GWS supplier shall take at
    least
    one
    sample
    from
    each
    of
    the
    following
    points:
    each entry point that is representative
    of each well after treatment.
    2)
    Sampling points for SWSs and mixed systems.
    Unless otherwise provided by SEP, a SWS or mixed
    system supplier shall sample from each of the
    following points:
    A)
    Each entry point after treatment; or
    B)
    Points in the distribution system that are
    representative of each source.
    3)
    The supplier shall take each sample at the same
    sampling point unless the Agency has granted a SEP
    that designates another location as more
    representative of each source, treatment plant, or
    within the distribution system.
    4)
    If a system draws water from more than one source,
    01 L~.2-Qt~.L~.7

    106
    and the sources are combined before distribution,
    the supplier shall sample at an entry point during
    periods of normal operating conditions when water
    is representative of all sources being used.
    BOARD NOTE:
    Subsections
    (b) and
    (c) above derived
    from 40 CFR 141.24(h) (1) through
    (h)(3)
    (1992).
    d)
    Monitoring frequency:
    1)
    Each CWS and NTNCWS supplier shall take four
    consecutive quarterly samples for each of the
    Phase II, Phase IIB, and Phase V SOCs during each
    compliance period, beginning in the three—year
    compliance period starting January
    1,
    1993in the
    initial compliance period.
    2)
    Suppliers serving more than 3,300 persons that do
    not detect a contaminant in the initial compliance
    period,
    shall take a minimum of two quarterly
    samples
    in one year of each subsequent three—year
    compliance period.
    3)
    Suppliers serving less than or equal to 3,300
    persons that do not detect a contaminant in the
    initial compliance period, shall take a minimum of
    one sample during each subsequent three—year
    compliance period.
    e)
    Reduction to annual monitoring frequency.
    A CWS or
    NTNCWS supplier may apply to the Agency for a SEP that
    releases it from the requirements of subsection
    (d)
    above.
    A SEP from the requirement of subsection
    (d)
    above shall last for only a single three—year
    compliance period.
    f)
    Vulnerability Assessment.
    The Agency shall grant a SEP
    from the requirements of subsection
    (d)
    above based on
    consideration of the factors set forth at Section
    611.110(e).
    g)
    If one of the Phase II,
    Phase IIB. or Phase V SOCs is
    detected
    in. any sample, then:
    1)
    The supplier shall monitor quarterly for the
    contaminant at each sampling point that resulted
    in a detection.
    2)
    Annual
    monitoring.
    A)
    A
    supplier
    may
    request
    that
    the
    Agency
    grant
    a SEP pursuant to Section 610.110 that
    I
    (~)

    107
    reduces
    the
    monitoring
    frequency
    to
    annual.
    B)
    A request for a SEP must include the
    following minimal information:
    i)
    For a GWS, two quarterly samples.
    ii)
    For a SWS or mixed system, four
    quarterly
    samples.
    C)
    The Agency shall grant a SEP that allows
    annual monitoring at a sampling point if it
    determines
    that
    the
    sampling
    point
    is
    reliably and consistently below the MCL.
    D)
    In issuing the SEP, the Agency shall specify
    the level of the contaminant upon which the
    “reliably and consistently” determination was
    based
    All SEP5 that allow less frequent
    monitoring
    based
    on
    an
    Agency.
    “reliably
    and
    consistently” determination shall include a
    condition requiring the supplier to resume
    quarterly monitoring pursuant to subsection
    (g) (1) above if it detects any Phase II SOC.
    3)
    Suppliers that monitor annually shall monitor
    during the quarter(s) that previously yielded the
    highest analytical result.
    4)
    Suppliers that have three consecutive annual
    samples with no detection of a contaminant at a
    sampling point may apply to the Agency for a SEP
    with respect to that point,
    as specified in
    subsections
    (e) and
    (f)
    above.
    5)
    Monitoring for related contaminants.
    A)
    If monitoring results in detection of one or
    more of the related contaminants listed in
    subsection
    (g)
    (5)
    (B)
    below,
    subsequent
    monitoring
    shall
    analyze
    for
    all
    the
    related
    compounds in the respective group.
    B)
    Related contaminants:
    i)
    first group:
    aldicarb
    aldicarb sulfone
    aldicarb sulfoxide
    ii)
    second group:
    01
    ~2-0~L~.9

    108
    heptach1or
    heptachlor epoxide,
    h)
    Quarterly monitoring following MCL violations.
    1)
    Suppliers that violate an MCL for one of the Phase
    II.
    Phase IIB. or Phase V SOC5,
    as determined by
    subsection
    (k)
    below, shall monitor quarterly for
    that contaminant at the sampling point where the
    violation occurred, beginning the next quarter
    after the violation.
    2)
    Annual monitoring.
    A)
    A supplier may request that the Agency grant
    a SEP pursuant to Section 611.110 that
    reduces the monitoring frequency to annual.
    B)
    A request for a SEP must include, at a
    minimum, the results from four quarterly
    samples.
    C)
    The Agency shall grant a SEP that allows
    annual monitoring at a sampling point if it
    determines
    that
    the
    sampling
    point
    is
    reliably and consistently below the MCL.
    D)
    In issuing the SEP, the Agency shall specify
    the level of the contaminant upon which the
    “reliably and consistently” determination was
    based
    All
    SEPs
    that
    allow
    less
    frequent
    monitoring based on an Agency “reliably and
    consistently”
    determination
    shall
    include
    a
    condition
    requiring
    the
    supplier
    to
    resume
    quarterly monitoring pursuant to subsection
    (h) (1)
    above if it detects any Phase II SOC.
    E)
    The supplier shall monitor during the
    quarter(s)
    that
    previously
    yielded
    the
    highest analytical result.
    i)
    Confirmation samples.
    1)
    If
    any of the Phase II. Phase IIB. or Phase V SOC5
    are detected in a sample, the supplier shall take
    a confirmation sample as soon as possible, but no
    later
    than
    14
    days
    after
    the
    supplier
    receives
    notice of the detection.
    2)
    Averaging is as specified in subsection
    (k)
    below.
    3)
    The Agency shall delete the original or
    C)
    ~‘
    *
    fl
    U
    ‘~

    109
    confirmation
    sample
    if
    it
    determines
    that
    a
    sampling
    error
    occurred,
    in
    which
    case
    the
    confirmation sample will replace the original or
    confirmation sample.
    j)
    This subsection corresponds with 40 CFR 141.24(h) (10),
    an optional USEPA provision relating to compositing of
    samples that USEPA does not require for state programs.
    This statement maintains structural consistency with
    USEPA rules.
    k)
    Compliance with the MCL5 for the Phase II. Phase IIB,
    and Phase V SOC5 shall be determined based on the
    analytical results obtained at each sampling point.
    1)
    For suppliers that are conducting monitoring at a
    frequency greater than annual, compliance is
    determined by a running annual average of all
    samples taken at each sampling point.
    A)
    If the annual average of any sampling point
    is greater than the NCL, then the supplier is
    out of compliance.
    B)
    If the initial sample or a subsequent sample
    would cause the annual average to be
    exceeded, then the supplier is out of
    compliance immediately.
    C)
    Any samples below the detection limit must be
    calculated as zero for purposes of
    determining the annual average.
    2)
    If monitoring is conducted annually or less
    frequently, the supplier is out of compliance if
    the level of a contaminant at any sampling point
    is greater than the MCL.
    If a confirmation sample
    is taken, the determination of compliance is based
    on the average of two samples.
    3)
    Public notice for a supplier out of compliance is
    governed by Subpart T of this Part.
    BOARD
    NOTE:
    Derived from 40 CFR 141.24(h) (11)
    (1992).
    1)
    Analysis for Phase II, Phase IIB, and Phase V SOC5 must
    be conducted using the following methods.
    These
    methods, except for USEPA Dioxin and Furan Method
    1613,
    are contained in USEPA Organic Methods~~All methods
    are incorporated by reference in Section 611.102.
    I
    L~’-u5
    I

    110
    1)
    Method 504,-~“1,2-Dibromoethane (EDB)
    and
    1,2-Dibromo-3-chloropropane (DBCP)
    in Water by
    Microextraction and Gas Chromatography~-”~Method
    504 can be used to measure 1,2—Dibromo—3-chloro—
    propane (dibromochloropropane or DBCP)
    and’
    1,2-Dibromoethane
    (ethylene
    dibromide
    or
    EDB).
    2)
    Method 5O5,-~“Analysis of Organohalide Pesticides
    and Commercial Polychlorinated Biphenyl Products
    (Aroclors)
    in Water by Microextraction and Gas
    Chromatography--”~ Method 505 can be used to
    measure alachlor, atrazine, chlordane, DDT,
    dieldrin,
    endrin, heptachior, heptachlor epoxide,
    hexachlorobenzene,
    hexachiorocyclopentadiene,
    lindane,
    methoxychior,
    simazine,
    and
    toxaphene.
    Method 505 can be used as
    a screen for PCB5.
    3)
    Method 5O7~j “Determination of Nitrogen— and
    Phosphorus-Containing Pesticides in Ground Water
    by Gas Chromatography with a Nitrogen—Phosphorus
    Detector-.-”~.Method 507 can be used to measure
    a1achlor~and atrazine, and simazine.
    4)
    Method 508,-j
    “Determination of Chlorinated
    Pesticides in Water by Gas Chromatography with an
    Electron Capture Detector-r”~ Method 508 can be
    used to measure chlordane, DDT, dieldrin, endrin,
    heptachior, heptachlor epoxide, hexachlorobenzene.
    lindane, methoxychlor,
    and toxaphene.
    Method 508
    can be used as
    a screen for PCB5.
    5)
    Method 508A,-~“Screening for Polychlorinated
    Biphenyls by Perchlorination and Gas
    Chromatography--”~Method 508A is used to
    quantitate
    PCBs
    as
    decachlorobiphenyl
    if
    detected
    in Methods 505 or 508.
    6)
    Method 515.1, revision 5.0
    (May,
    1991),-j
    “Deter-
    mination of Chlorinated Acids in Water by Gas
    Chromatography with an Electron Capture
    Detector-r”~ Method 515.1 can be used to measure
    2,4—D, dalapon. dinoseb. ~entachloro~henol.
    picloram, and 2,4,5-TP
    (Silvex) and pentachloro-
    phenol.
    7)
    Method 525.1, revision 3.0
    (May,
    1991),-j
    “Deter-
    mination of Organic Compounds in Drinking Water by
    Liquid-Solid Extraction and Capillary
    Column
    Gas
    C~romatography/Mass Spectrometry--”~ Method 525
    ~
    be used to measure alachlor, atrazine,
    chlordane,
    di (2-ethylhexyl)
    adipate.
    di(2-ethyl—
    hexvl) phthalate.
    endrin, heptachlor, heptachlor
    0
    i
    i~2-0L’52

    111
    epoxide, hexachlorobenzene. hexachiorocyclopenta—
    diene,
    lindane,
    methoxychior,
    and
    pentachloro—
    phenol
    ~olvnuclear
    aromatic
    hydrocarbons.
    simazine.
    and
    toxaphene.
    8)
    Method
    53l.1,-~
    “Measurement
    of
    N-Methyl
    Carbamoyloximes
    and
    N—Methyl
    Carbamates
    in
    Water
    by
    Direct
    Aqueous
    Injection
    HPLC
    with
    Post-Column
    Derivatization--”.
    Method
    531.1
    can
    be
    used
    to
    measure
    aldicarb,
    aldicarb
    sulfoxide,
    aldicarb
    sulfone,
    and
    carbofuran,
    and
    oxamyl.
    ~j
    USEPA Dioxin and Furan Method
    1613:
    “Tetra-
    through Octa— Chlorinated Dioxins and Furans by
    Isotope Dilution”.
    Method 1613 can be used to
    measure 2,3,7,8-TCDD (dioxin).
    ~
    Method 547:
    “Analysis of Glv~hosatein Drinking
    Water
    bY
    Direct
    Aqueous
    Injection
    HPLC
    with
    Post-
    Column Derivitization”,
    available from USEPA—OST.
    Method
    547
    can
    be
    used to measure glvphosate.
    3Jj
    Method 548:
    “Determination of Endothall in
    Aaueous
    Samples”.
    Method
    548
    can
    be
    used
    to
    measure
    endothall.
    ~j.
    Method 549:
    “Determination of Diciuat and Paraquat
    in
    Drinking
    Water
    by
    High
    Performance
    Liquid
    Chromato~ra~hvwith
    Ultraviolet
    Detection”.
    Method
    549
    can
    be
    used
    to
    measure
    diquat.
    )~3J..
    Method 550:
    “Determination of Polycvclic Aromatic
    Hvdorcarbons
    in Drinking Water by Liquid-Liguid
    Extraction and HPLC with Coupled Ultraviolet and
    Fluorescence Detection”.
    Method 550 can be used
    to measure benzo(a)pyrene and other Polvnuclear
    aromatic
    hydrocarbons.
    ~.IL
    Method
    550.1:
    “Determination
    of
    Polvcvclic
    Aromatic Hydrocarbons in Drinking Water by Liquid-
    Solid Extraction and HPLC with Coupled Ultraviolet
    and Fluorescence Detection”.
    Method 550 can be
    used to measure benzo(a)~yreneand other
    polynuclear aromatic hydrocarbons.
    m)
    Analysis for PCBs must be conducted as follows:
    1)
    Each supplier that monitors for PCBs shall analyze
    each sample using either USEPA Organic Methods,
    Method 505 or Method 508.
    2)
    If PCBs are detected in any sample analyzed using

    112
    USEPA Organic Methods, Methods 505 or 508, the
    supplier shall reanalyze the sample using Method
    508A to quantitate the individual Aroclors (as
    decachlorobiphenyl).
    3)
    Compliance with the PCB NCL must be determined
    based upon the quantitative results of analyses
    using USEPA Organic Methods, Method 508A.
    n)
    Use of existing data.
    1)
    The Agency shall allow the use of data collected
    after January
    1,
    1990 but prior to the effective
    date of this Section, pursuant to Agency sample
    request letters,
    if
    it
    determines that the data
    are generally consistent with the requirements of
    this Section.
    2)
    The Agency shall grant a SEP pursuant to Section
    611.110 that allows a supplier to monitor annually
    beginning January
    1,
    19931n the initial compliance
    period if it determines that the supplier did not
    detect any Phase
    I VOC or Phase II VOC using
    existing data allowed pursuant to subsection
    (n)(1)
    above.
    o)
    The Agency shall issue a SEP that increases the number
    of sampling points or the frequency of monitoring
    if it
    determines that this is necessary to detect variations
    within the PWS due to such factors as fluctuations in
    contaminant concentration due to seasonal use or
    changes in the water source.
    BOARD NOTE:
    At 40 CFR 141.24(h) (15), USEPA uses the
    stated factors as non—limiting examples of
    circumstances that make additional monitoring
    necessary.
    p)
    This subsection corresponds with 40 CFR 141.24(h) (16),
    a USEPA provision that the Board has not adopted
    because it reserves enforcement authority to the state
    and would serve no useful function as part of the
    state’s rules.
    This statement maintains structural
    consistency with USEPA rules.
    q)
    Each supplier shall monitor, within each compliance
    period, at the time designated by the Agency by SEP
    pursuant to Section 611.110.
    r)
    “Detection” means greater than or equal to the
    following concentrations for each contaminant:
    o
    ~
    o ~

    113
    1)
    for PCBs (Aroclors):
    Aroclor
    Detection Limit
    (mg/L)
    1016
    0.00008
    1221
    0.02
    1232
    0.0005
    1242
    0.0003
    1248
    0.0001
    1254
    0.0001
    1260
    0.0002
    2)
    for other Phase II, Phase IIB. and Phase V SOC5:
    Contaminant
    Detection Limit
    (mg/L)
    Alachlor
    0.0002
    Aldicarb
    0.0005
    Aldicarb sulfoxide
    0.0005
    Aldicarb sulfone
    0.0008
    Atrazine
    0.0001
    Benzo(a)~vrene
    0.00002
    Carbofuran
    0.0009
    Chlordane
    0.0002
    2.4—D
    0.0001
    Dalapon
    0.001
    Dibromochloropropane
    (DBCP)
    0.00002
    2,4—D
    0.0001
    Di (2-ethylhexvl)adipate
    0.0006
    Di (2-ethylhexvl)phthalate
    0.0006
    Dinoseb
    0.0002
    Diquat
    0.0004
    Endothall
    0.009
    Endrin
    0.0000.
    Ethylene dibromide
    (EDB)
    0.00001
    Glyphosate
    0.006
    Heptachior
    0.00004
    Heptachior epoxide
    0.00002
    Hexachlorobenzene
    0.0001
    Hexachlorocyclopentadiene
    0.0001
    Lindane
    0.00002
    Methoxychlor
    0.0001
    Oxamyl
    0.002
    Picloram
    0.0001
    Polychlorinated biphenyls
    (PCB5)
    (as decachlorobiphenyl)
    0.0001
    Pentachlorophenol
    0.00004
    Simazine
    0.00007.
    Toxaphene
    0.001
    2~3.7.8—TCDD
    (dioxin)
    0.000000005
    2,4,5—TP (Silvex)
    0.0002
    UIL~,2-oi~55

    114
    BOARD NOTEz
    Derived from 40
    (1992)
    2 standard
    2 standard
    2
    standard
    ±45
    deviations
    deviations
    deviations
    ±45
    deviations
    deviations
    deviations
    0
    L.
    2
    1)11.56
    ‘——I
    s)
    Laboratory Certification.
    1)
    Analyses under this Section must only be conducted
    by laboratories that have received approval by
    USEPA
    or
    the
    Agency
    according
    to
    the
    following
    conditions.
    2)
    To receive certification to conduct analyses for
    the
    Phase
    II.
    Phase
    IlL
    and
    Phase
    V
    SOC5
    the
    laboratory must:
    A)
    Analyze performance evaluation samples
    provided by the Agency pursuant to 35 Ill.
    Adm. Code 183.125(c) that include these
    substances; and
    B)
    Achieve
    quantitative
    results
    on
    the
    analyses
    performed under subsection
    (s) (2) (A) above
    that
    are
    within
    the
    acceptance
    limits
    set
    forth
    in
    subsection
    (5)
    (2) (C)
    above.
    C)
    Acceptance limits:
    SOC
    Acceptance
    Limits
    Alachlor
    Aldicarb
    Aldicarb sulfone
    Aldicarb sulfoxide
    Atraz me
    Benzo (a) pyrene
    Carbofuran
    Chiordane
    Dalapon
    Di
    (2-ethvlhexvl)
    adipate
    2
    2 standard deviations
    ±45
    ±45
    2 standard deviations
    standard
    Di. (2-ethylhexyl)phthalate
    2 standard
    Dinoseb
    2 standard
    Diquat
    2
    standard
    Endothall
    Endrin
    Glv~hosate
    2
    standa~ri
    Dibromochloropropane
    (DBCP)
    Ethylene dibromide
    (EDB)
    Heptachior
    Heptachlor epoxide
    Hexachlorobenzene
    2 standard
    Hexachlorocvc
    lopentad iene
    -
    deviations
    2 standard
    ~
    .
    deviations
    ±30
    deviations
    ±40
    ±40
    ±45
    ±45
    deviations

    115
    2 standard deviations
    Lindane
    ±45
    Methoxychlor
    ±45
    Oxamvl
    2 standard deviations
    PCBs (as Decachlorobiphenyl)
    0-200
    Pentachlorophenol
    ±50
    Picloram
    2 standard deviations
    Simazine
    2 standard deviations
    Toxaphene
    ±45
    2,4—D
    ±50
    2,3.7.8—TCDD
    (dioxin)
    2 standard deviations
    2,4,5—TP (Silvex)
    ±50
    2,4—D
    +
    50
    BOARD NOTE:
    Derived from 40 CFR 141.24(h)
    (1992), as amended at 57 Fed. Req. 31842
    (July 17.
    1992).
    (Source:
    Amended at 17 111. Reg.
    _________,
    effective
    __________
    ____________________________
    )
    Section 611.App~ndixA
    Mandatory Health Effects Information
    1)
    Trichloroethylene.
    The United States Environmental
    Protection Agency
    (USEPA)
    sets drinking water standards
    and has determined that trichloroethylene is a health
    concern at certain levels of exposure.
    This chemical
    is a common metal cleaning and dry cleaning fluid.
    It
    generally gets into drinking water by improper waste
    disposal.
    This chemical has been shown to cause cancer
    in laboratory animals such as rats and mice when the
    animals are exposed at high levels over their
    lifetimes.
    Chemicals that cause cancer in laboratory
    animals also may increase the risk of cancer in humans
    who are exposed at lower levels over long periods of
    time.
    USEPA has set forth the enforceable drinking
    water standard for trichloroethylene at 0.005 parts per
    million
    (ppm)
    to reduce the risk of cancer or other
    adverse health effects which have been observed in
    laboratory animals.
    Drinking water which meets this
    standard is associated with little to none of this risk
    and should be considered safe.
    2)
    Carbon tetrachloride.
    The United States Environmental
    Protection Agency
    (USEPA)
    sets drinking water standards
    and has determined that carbon tetrachloride is a
    health concern at certain levels of exposure.
    This
    chemical was once a popular household cleaning fluid.
    It generally gets into drinking water by improper waste
    disposal.
    This chemical has been shown to cause cancer
    0
    H42-01t57

    116
    in laboratory animals such as rats and mice when the
    animals are exposed at high levels over their
    lifetimes.
    Chemicals that cause cancer in laboratory
    animals also may increase the risk of cancer in humans
    who are exposed at lower levels over long periods of
    time.
    USEPA has set the enforceable drinking water
    standard for carbon tetrachioride at 0.005 parts per
    million
    (ppm)
    to reduce the risk of cancer or other
    adverse health effects which have been observed in
    laboratory animals.
    Drinking water which meets this
    standard is associated with little to none of this risk
    and should be considered safe.
    3)
    1,2-Dichloroethane.
    The United States Environmental
    Protection Agency
    (USEPA) sets drinking water standards
    and has determined that 1,2-dichloroethane is a health
    concern at certain levels of exposure.
    This chemical
    is used as a cleaning fluid for fats,
    oils, waxes and
    resins.
    It generally gets into drinking water by
    improper waste disposal.
    This chemical has been shown
    to cause cancer in laboratory animals such as rats and
    mice when the animals are exposed at high levels over
    their lifetimes.
    Chemicals that cause cancer in
    laboratory animals also may increase the risk of cancer
    in humans who are exposed at lower levels over long
    periods of time.
    USEPA has set the enforceable
    drinking water standard for 1,2-dichloroethane at 0.005
    parts per million
    (ppm)
    to reduce the risk of cancer or
    other adverse health effects which have been observed
    in laboratory animals.
    Drinking water which meets this
    standard is associated with little to none of this risk
    and should be considered
    safe.
    4)
    Vinyl chloride.
    The United States Environmental
    Protection Agency
    (USEPA)
    sets drinking water standards
    and has determined that vinyl chloride is a health
    concern at certain levels of exposure.
    This chemical
    is used in industry and is found in drinking water as a
    result of the breakdown of related solvents.
    The
    solvents are used as cleaners and degreasers of metals
    and generally get into drinking water by improper waste
    disposal.
    This chemical has been associated with
    significantly increased risks of cancer among certain
    industrial workers who were exposed to relatively large
    amounts of this chemical during their working careers.
    This chemical has also been shown to cause cancer in
    laboratory animals when the animals are exposed at high
    levels over their lifetimes.
    Chemicals that cause
    increased risk of cancer among exposed industrial
    workers and in laboratory animals also may increase the
    risk of cancer in humans who are exposed at lower
    levels over long periods of time.
    USEPA has set the
    cn
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    117
    enforceable drinking water standard for vinyl chloride
    at 0.002 parts per million
    (ppm)
    to reduce the risk of
    cancer or other adverse health effects which have been
    observed in laboratory animals.
    Drinking water which
    meets this standard is associated with little to none
    of this risk and should be considered safe.
    5)
    Benzene.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that benzene is a health concern at certain
    levels of exposure.
    This chemical is used as a solvent
    and degreaser of metals.
    It is also a major component
    of gasoline.
    Drinking water contamination generally
    results from leaking underground gasoline and petroleum
    tanks or improper waste disposal.
    This chemical has
    been associated with significantly increased risks of
    leukemia among certain industrial workers who were
    exposed to relatively large amounts of this chemical
    during their working careers.
    This chemical has also
    been shown to This chemical has been shown to cause
    cancer in laboratory animals when the animals are
    exposed at high levels over their lifetimes.
    Chemicals
    that cause increased risk of cancer among exposed
    industrial workers and in laboratory animals also may
    increase the risk of cancer in humans who are exposed
    at lower levels over long periods of time.
    USEPA has
    set the enforceable drinking water standard for benzene
    at 0.005 parts per million
    (ppm)
    to reduce the risk of
    cancer or other adverse health effects which have been
    observed in humans and laboratory animals.
    Drinking
    water which meets this standard is associated with
    little to none of this risk and should be considered
    safe.
    6)
    1,1—Dichloroethylene.
    The United States Environmental
    Protection Agency (USEPA) sets drinking water standards
    and has determined that 1,1-dichloroethylene is a
    health concern at certain levels of exposure.
    This
    chemical is used in industry and is found in drinking
    water as a result of the breakdown of related solvents.
    The solvents are used as cleaners and degreasers of
    metals and generally into drinking water by improper
    waste disposal.
    This chemical has been shown to cause
    liver and kidney damage in laboratory animals such as
    rats and mice when the animals are exposed at high
    levels over their lifetimes.
    Chemicals that cause
    adverse effects in laboratory animals also may cause
    adverse health effects in humans who are exposed at
    lower levels over long periods of time.
    TJSEPA
    has set
    the enforceable drinking water standard for 1,1—
    dichloroethylene at 0.007 parts per million (ppm)
    to
    reduce the risk of these adverse health effects which
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    118
    have been observed in laboratory animals.
    Drinking
    water which meets this standard is associated with
    little to none of this risk and should be considered
    safe.
    7)
    Para—dichlorobenzene.
    The United States Environmental
    Protection Agency ~(USEPA)sets drinking water standards
    and has determined that para—dichlorobenzene is a
    health concern at certain levels of exposure.
    This
    chemical is a component of deodorizers, moth balls and
    pesticides.
    It generally gets into drinking water by
    improper waste disposal.
    This chemical has been shown
    to cause liver and kidney damage in laboratory animals
    such as rats and mice when the animals are exposed at
    high levels over their lifetimes.
    Chemicals which
    cause adverse effects in laboratory animals also may
    cause adverse health effects in humans who are exposed
    at lower levels over long periods of time.
    USEPA has
    set the enforceable drinking water standard for para-
    dichlorobenzene at 0.075 parts per million
    (ppm)
    to
    reduce the risk of these adverse health effects which
    have been observed in laboratory animals.
    Drinking
    water which meets this standard is associated with
    little to none of this risk and should be considered
    safe.
    8)
    1,1,1-Trichloroethane.
    The United States Environmental
    Protection Agency
    (USEPA)
    sets drinking water standards
    and has determined that 1,1,1-trichloroethane is a
    health concern at certain levels of exposure.
    This
    chemical is used as a cleaner and degreaser of metals.
    It generally gets into drinking water by improper waste
    disposal.
    This chemical has been shown to damage the
    liver, nervous system and circulatory system of
    laboratory animals such as rats and mice when the
    animals are exposed at high levels over their
    lifetimes.
    Some industrial workers who were exposed to
    relatively large amounts of this chemical during their
    working careers also suffered damage to the liver,
    nervous system and circulatory system.
    Chemicals which
    cause adverse effects among exposed industrial workers
    and in laboratory animals also may cause adverse health
    effects in humans who are exposed at lower levels over
    long periods of time.
    USEPA has set the enforceable
    drinking water standard for 1,1,1-trichloroethane at
    0.2 parts per million
    (ppm)
    to protect against the risk
    of these adverse health effects which have been
    observed in laboratory animals.
    Drinking water which
    meets this standard is associated with little to none
    of this risk and should be considered safe.
    9)
    Fluoride.
    The U.S. Environmental Protection Agency

    119
    requires that we send you this notice on the level of
    fluoride in your drinking water.
    The drinking water in
    your community has a fluoride concentration of
    milligrams per liter
    (mg/L).
    Federal regulations require that fluoride, which occurs
    naturally in your water supply, not exceed a
    concentration of 4.0 mg/L in drinking water.
    This is
    an enforceable standard called a Maximum Contaminant
    Level
    (MCL), and it has been established to protect the
    public health.
    Exposure to drinking water levels above
    4.0 mg/L for many years may result in some cases of
    crippling skeletal fluorosis, which is a serious bone
    disorder.
    Federal law also requires that we notify you when
    monitoring indicates that the fluoride in your drinking
    water exceeds 2.0 mg/L.
    This is intended to alert
    families about dental problems that might affect
    children under nine years of age.
    The fluoride
    concentration of your water exceeds this federal
    guideline.
    Fluoride in children’s drinking water at levels of
    approximately 1 mg/L reduces the number of dental
    cavities.
    However, some children exposed to levels of
    fluoride greater than about 2.0 mg/L may develop dental
    fluorosis.
    Dental fluorosis,
    in its moderate and
    severe forms,
    is a brown staining and/or pitting of the
    permanent teeth.
    Because dental fluorosis occurs only when developing
    teeth
    (before they erupt from the gums)
    are exposed to
    elevated fluoride levels, households without children
    are not expected to be affected by this level of
    fluoride.
    Families with children under the age of nine
    are encouraged to seek other sources of drinking water
    for their children to avoid the possibility of staining
    and pitting.
    Your water supplier can lower the concentration of
    fluoride in your water so that you will still receive
    the benefits of cavity prevention while the possibility
    of stained and pitted teeth is minimized.
    Removal of
    fluoride may increase your water costs.
    Treatment
    systems are also commercially available for home use.
    Information on such systems is available at the address
    given below.
    Low fluoride bottled drinking water that
    would meet all standards is also commercially
    available.
    For further information, contact
    at your
    I
    f’t
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    120
    water system.
    BOARD
    NOTE:
    Derived from 40 CFR 141.32 (e) (9)
    and 143.5
    (1992)
    10)
    Microbiological contaminants
    (for use when there is
    a
    violation of the treatment technique requirements for
    filtration and disinfection in Subpart B of this Part).
    The United States Environmental Protection Agency
    (USEPA)
    sets drinking water standards and has
    determined that the presence of microbiological
    contaminants are a health concern at certain levels of
    exposure.
    If water is inadequately treated,
    microbiological contaminants in that water may cause
    disease.
    Disease symptoms may include diarrhea,
    cramps, nausea and possibly jaundice and any associated
    headaches and fatigue.
    These symptoms, however, are
    not just associated with disease—causing organisms in
    drinking water, but also may be caused by a number of
    factors other than your drinking water.
    USEPA has set
    enforceable requirements for treating drinking water to
    reduce the risk of these adverse health effects.
    Treatment such as filtering and disinfecting the water
    removes or destroys microbiological contaminants.
    Drinking water which is treated to meet USEPA
    requirements is associated with little to none of this
    risk and should be considered safe.
    11)
    Total coliforms.
    (To be used when there is a violation
    of Section 611.325(a)
    and not a violation of Section
    611.325(b)).
    The United States Environmental
    Protection Agency
    (USEPA) sets drinking water standards
    and has determined that the presence of total coliforms
    is a possible health concern.
    Total coliforms are
    common in the environment and are generally not harmful
    themselves.
    The presence of these bacteria in drinking
    water,
    however, generally is a result of a problem with
    water treatment or the pipes which distribute the water
    and indicates that the water may be contaminated with
    organisms that can cause disease.
    Disease symptoms may
    include diarrhea, cramps, nausea and possibly jaundice,
    and any associated headaches and fatigue.
    These
    symptoms, however, are not just associated with
    disease—causing organisms in drinking water, but also
    may be caused by a number of factors other than your
    drinking water.
    USEPA has set an enforceable drinking
    water standard for total coliforms to reduce the risk
    of these adverse health effects.
    Under this standard,
    no more than 5.0 percent of the samples collected
    during a month can contain these bacteria, except that
    systems collecting fewer than 40 samples/month that
    have one total coliform—positive sample per month are
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    121
    not violating the standard.
    Drinking water which meets
    this standard is usually not associated with a health
    risk from disease—causing bacteria and should be
    considered safe.
    12)
    Fecal Coliforms/E.
    coli.
    (To be used when there is a
    violation of Section 611.325(b)
    or both Section
    611.325(a)
    and
    (b)).
    The United States Environmental
    Protection Agency
    (USEPA) sets drinking water standards
    and has determined that the presence of fecal coliforms
    or
    E. coli
    is a serious health concern.
    Fecal
    coliforms and E.
    coli are generally not harmful
    themselves, but their presence in drinking water is
    serious because they usually are associated with sewage
    or animal wastes.
    The presence of these bacteria in
    drinking water
    is generally a result of a problem with
    water treatment or the pipes which distribute the water
    and indicates that the water may be contaminated with
    organisms that can cause disease.
    Disease symptoms may
    include diarrhea,
    cramps, nausea and possibly jaundice,
    and associated headaches and fatigue.
    These symptoms,
    however,
    are not just associated with disease—causing
    organisms in drinking water, but also may be caused by
    a number of factors other than your drinking water.
    USEPA has set an enforceable drinking water standard
    for fecal coliforms and E.
    coli to reduce the risk of
    these adverse health effects.
    Under this standard all
    drinking water samples must be free of these bacteria.
    Drinking water which meets this standard is associated
    with little or none of this risk and should be
    considered safe.
    State and local health authorities
    reconunend that consumers take the following
    precautions:
    To
    be inserted by the public water
    system, according to instruction from State or local
    authorities).
    13)
    Lead.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that lead is a health concern at certain
    exposure levels.
    Materials that contain lead have
    frequently been used in the construction of water
    supply distribution systems, and plumbing systems in
    private homes and other buildings.
    The most commonly
    found materials include service lines, pipes, brass and
    bronze fixtures, and solders and fluxes.
    Lead in these
    materials can contaminate drinking water as a result of
    the corrosion that takes place when water comes into
    contact with those materials.
    Lead can cause a variety
    of adverse health effects in humans.
    At relatively low
    levels of exposure, these effects may include
    interference with red blood cell chemistry, delays in
    normal physical and mental development in babies and
    01~~2-0~63

    122
    young children, slight deficits in the attention span,
    hearing, and learning abilities of children, and slight
    increases in the blood pressure of some adults.
    USEPA’s national primary drinking water regulation
    requires all public water systems to optimize corrosion
    control to minimize lead contamination resulting from
    the corrosion of plumbing materials.
    Public water
    systems serving 50,000 people or fewer that have lead
    concentrations below 15 parts per billion
    (ppb)
    in more
    than 90
    of tap water samples
    (the USEPA “action
    level”) have optimized their corrosion control
    treatment.
    Any water system that exceeds the action
    level must also monitor their source water to determine
    whether treatment to remove lead in source water is
    needed.
    Any water system that continues to exceed the
    action level after installation of corrosion control
    and/or source water treatment must eventually replace
    all lead service lines contributing in excess of
    15 ppb
    of lead to drinking water.
    Any water system that
    exceeds the action level must also undertake a public
    education program to inform consumers of ways they can
    reduce their exposure to potentially high levels of
    lead in drinking water.
    14)
    Copper.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that copper is a health concern at certain
    exposure levels.
    Copper,
    a reddish—brown metal,
    is
    often used to plumb residential and commercial
    structures that are connected to water distribution
    systems.
    Copper contaminating drinking water as a
    corrosion by—product occurs as the result of the
    corrosion of copper pipes that remain in contact with
    water for a prolonged period of time.
    Copper
    is an
    essential nutrient,
    but at high doses it has been shown
    to cause stomach and intestinal distress,
    liver and
    kidney damage,
    and anemia.
    Persons with Wilson’s
    disease may be at a higher risk of health effects due
    to copper than the general public.
    USEPA’s national
    primary drinking water regulation requires all public
    water systems to install optimal corrosion control to
    minimize copper contamination resulting from the
    corrosion of plumbing materials.
    Public water systems
    serving 50,000 people or fewer that have copper
    concentrations below 1.3 parts per million
    (ppm)
    in
    more than 90
    of tap water samples
    (the USEPA “action
    level”) are not required to install or improve their
    treatment.
    Any water system that exceeds the action
    level must also monitor their source water to determine
    whether treatment to remove copper in source water is
    needed.
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    123
    15)
    Asbestos.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that asbestos fibers greater than
    10
    micrometers
    in length are
    a health concern at
    certain levels of exposure.
    Asbestos is a naturally
    occurring mineral.
    Most asbestos fibers in drinking
    water are less than 10 micrometers in length and occur
    in drinking water from natural sources and from
    corroded asbestos—cement pipes in the distribution
    system.
    The major uses of asbestos were in the
    production of cements,
    floor tiles,
    paper products,
    paint,
    and caulking;
    in transportation-related
    applications; and in the production of textiles and
    plastics.
    Asbestos was once a popular insulating and
    fire retardant material.
    Inhalation studies have shown
    that various forms of asbestos have produced lung
    tumors in laboratory animals.
    The available
    information on the risk of developing gastrointestinal
    tract cancer associated with the ingestion of asbestos
    from drinking water is limited.
    Ingestion of
    intermediate—range chrysolite asbestos fibers greater
    than 10 micrometers in length is associated with
    causing benign tumors in male rats.
    Chemicals that
    cause cancer in laboratory animals also may increase
    the risk of cancer in humans who are exposed over long
    periods of time.
    USEPA has set the drinking water
    standard for asbestos at 7 million long fibers per
    liter to reduce the potential risk of cancer or other
    adverse health effects which have been observed in
    laboratory animals.
    Drinking water which meets the
    USEPA standard is associated with little to none of
    this risk and should be considered safe with respect to
    asbestos.
    16)
    Barium.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that barium is
    a health concern at certain
    levels of exposure.
    This inorganic chemical occurs
    naturally in some aquifers that serve as sources of
    groundwater.
    It is also used in oil and gas drilling
    muds, automotive paints,
    bricks,
    tiles, and jet fuels.
    It generally gets into drinking water after dissolving
    from naturally occurring minerals
    in the ground.
    This
    chemical may damage the heart and vascular system, and
    is associated with high blood pressure in laboratory
    animals such as rats exposed to high levels during
    their lifetimes.
    In humans, USEPA believes that
    effects from barium on blood pressure should not occur
    below
    2 parts per million
    (ppm)
    in drinking water.
    USEPA has set the drinking water standard for barium at
    2 parts per million
    (ppm)
    to protect against the risk
    of these adverse health effects.
    Drinking water that
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    124
    meets the USEPA standard is associated with little to
    none of this risk and is considered safe with respect
    to barium.
    17)
    Cadmium.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that cadmium is a health concern at certain
    levels of exposure.
    Food and the smoking of tobacco
    are common sources of general exposure.
    This inorganic
    metal is
    a contaminant in the metals used to galvanize
    pipe.
    It generally gets into water by corrosion of
    galvanized pipes or by improper waste disposal.
    This
    chemical has been shown to damage the kidney in animals
    such as rats and mice when the animals are exposed at
    high levels over their lifetimes.
    Some industrial
    workers who were exposed to relatively large amounts of
    this chemical during working careers also suffered
    damage to the kidney.
    USEPA has set the drinking water
    standard for cadmium at 0.005 parts per million
    (ppm)
    to protect against the risk of these adverse health
    effects.
    Drinking water that meets the USEPA standard
    is associated with little to none of this risk and is
    considered safe with respect to cadmium.
    18)
    Chromium.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that chromium is a health concern at certain
    levels of exposure.
    This inorganic metal occurs
    naturally in the ground and is often used in the
    electroplating of metals.
    It generally gets into water
    from runoff from old mining operations and improper
    waste disposal from plating operations.
    This chemical
    has been shown to damage the kidney, nervous system,
    and the circulatory system of laboratory animals such
    as rats and mice when the animals are exposed at high
    levels. Some humans who were exposed to high levels of
    this chemical suffered liver and kidney damage,
    dermatitis and respiratory problems.
    USEPA has set the
    drinking water standard for chromium at 0.1 parts per
    million
    (ppm)
    to protect against the risk of these
    adverse health effects.
    Drinking water that meets the
    USEPA standard is associated with little to none of
    this risk and is considered safe with respect to
    chromium.
    19)
    Mercury.
    The United States Environmental Protection
    Agency
    (USEPA) sets drinking water standards and has
    determined that mercury
    is a health concern at certain
    levels of exposure.
    This inorganic metal is used in
    electrical equipment and some water pumps.
    It usually
    gets into water as a result of improper waste disposal.
    This chemical has been shown to damage the kidney of
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    I ~2
    0 ~6 6

    125
    laboratory animals such as rats when the animals are
    exposed at high levels over their lifetimes.
    USEPA has
    set the drinking water standard for mercury at 0.002
    parts per million
    (ppm)
    to protect against the risk of
    these adverse health effects.
    Drinking water that
    meets the USEPA standard is associated with little to
    none of this risk and is considered safe with respect
    to mercury.
    20)
    Nitrate.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that nitrate poses an acute health concern
    at certain levels of exposure.
    Nitrate is used in
    fertilizer and is found in sewage and wastes from human
    and/or farm animals and generally gets into drinking
    water from those activities.
    Excessive levels of
    nitrate
    in drinking water have caused serious illness
    and sometimes death in infants under six months of age.
    The serious illness in infants is caused because
    nitrate is converted to nitrite in the body.
    Nitrite
    interferes with the oxygen carrying capacity of the
    child’s blood. This is an acute disease in that
    symptoms can develop rapidly in infants.
    In most
    cases, health deteriorates over a period of days.
    Symptoms include shortness of breath and blueness of
    the skin.
    Clearly, expert medical advice should be
    sought immediately if these symptoms occur.
    The
    purpose of this notice is to encourage parents and
    other responsible parties to provide infants with an
    alternate source of drinking water.
    Local and State
    health authorities are the best source for information
    concerning alternate sources of drinking water for
    infants. USEPA has set the drinking water standard at
    10 parts per million
    (ppm)
    for nitrate to protect
    against the risk of these adverse effects.
    USEPA has
    also set a drinking water standard for nitrite at 1
    ppm.
    To allow for the fact that the toxicity of
    nitrate and nitrite are additive.
    USEPA has also
    established a standard for the sum of nitrate and
    nitrite at 10 ppm.
    Drinking water that meets the USEPA
    standard is associated with little to none of this risk
    and is considered safe with respect to nitrate.
    21)
    Nitrite.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that nitrite poses an acute health concern
    at certain levels of exposure.
    This inorganic chemical
    is used in fertilizers and is found in sewage and
    wastes from humans and/or farm animals and generally
    gets into drinking water as a result of those
    activities.
    While excessive levels of nitrite in
    drinking water have not been observed, other sources of
    01
    L~,2-QL67

    126
    nitrite have caused serious illness and sometimes death
    in infants under six months of age.
    The serious
    illness in infants is caused because nitrite interferes
    with the oxygen carrying capacity of the child’s blood.
    This is an acute disease
    in that symptoms can develop
    rapidly.
    However,
    in most cases, health deteriorates
    over a period of days.
    Symptoms include shortness of
    breath and blueness of the skin.
    Clearly, expert
    medical advice should be sought immediately if these
    symptoms occur.
    The purpose of this notice is to
    encourage parents and other responsible parties to
    provide infants with an alternate source of drinking
    water.
    Local and State health authorities are the best
    source for information concerning alternate sources of
    drinking water for infants.
    USEPA has set the drinking
    water standard at 1 part per million
    (ppm)
    for nitrite
    to protect against the risk of these adverse effects.
    USEPA has also set a drinking water standard for
    nitrate (converted to nitrite in humans) at 10 ppm and
    for the sum of nitrate and nitrite at 10 ppm.
    Drinking
    water that meets the USEPA standard is associated with
    little to none of this risk and is considered safe with
    respect to nitrite.
    22)
    Selenium.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that selenium is a health concern at certain
    high levels of exposure.
    Selenium is also an essential
    nutrient at low levels of exposure.
    This inorganic
    chemical is found naturally in food and soils and is
    used in electronics, photocopy operations, the
    manufacture of glass,
    chemicals,
    drugs, and as a
    fungicide and a feed additive.
    In humans, exposure to
    high levels of selenium over a long period of time has
    resulted in a number of adverse health effects,
    including a loss of feeling and control in the arms and
    legs.
    USEPA has set the drinking water standard for
    selenium at 0.05 parts per million
    (ppm)
    to protect
    against the risk of these adverse health effects.
    Drinking water that meets the USEPA standard is
    associated with little to none of this risk and is
    considered safe with respect to selenium.
    23)
    Acrylamide.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that acrylamide is a health concern at
    certain levels of exposure.
    Polymers made from
    acrylamide are sometimes used to treat water supplies
    to remove particulate contaminants.
    Acrylamide has
    been shown to cause cancer in laboratory animals such
    as rats and mice when the animals are exposed at high
    levels over their lifetimes.
    Chemicals that cause
    — U
    ~4

    127
    cancer in laboratory animals also may increase the risk
    of cancer in humans who are exposed over long periods
    of time.
    Sufficiently large doses of acrylamide are
    known to cause neurological injury.
    USEPA has set the
    drinking water standard for acrylamide using a
    treatment technique to reduce the risk of cancer or
    other adverse health effects which have been observed
    in laboratory animals.
    This treatment technique limits
    the amount of acrylamide in the polymer and the amount
    of the polymer which may be added to drinking water to
    remove particulates.
    Drinking water systems which
    comply with this treatment technique have little to no
    risk and are considered safe with respect to
    acrylamide.
    24)
    Alachior.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that alachlor is a health concern at certain
    levels of exposure.
    This organic chemiáal is a widely
    used pesticide.
    When soil and climatic conditions are
    favorable,
    alachlor may get into drinking water by
    runoff into surface water or by leaching into
    groundwater.
    This chemical has been shown to cause
    cancer in laboratory animals such as rats and mice when
    the animals are exposed at high levels over their
    lifetimes.
    Chemicals that cause cancer in laboratory
    animals also may increase the risk of cancer in humans
    who are exposed over long periods of time.
    USEPA has
    set the drinking water standard for alachlor at 0.002
    parts per million
    (ppm)
    to reduce the risk of cancer or
    other adverse health effects which have been observed
    in laboratory animals.
    Drinking water that meets this
    standard is associated with little to none of this risk
    and is considered safe with respect to alachlor.
    25)
    Aldicarb.
    The United States Environmental Protection
    Agency
    (USEPA) sets drinking water standards and has
    determined that aldicarb is a health concern at certain
    levels of exposure.
    Aldicarb is a widely used
    pesticide.
    Under certain soil and climatic conditions
    (e.g.,
    sandy soil and high rainfall), aldicarb may
    leach into groundwater after normal agricultural
    applications to crops such as potatoes or peanuts or
    may enter drinking water supplies as a result of
    surface runoff.
    This chemical has been shown to damage
    the nervous system in laboratory animals such as rats
    and dogs exposed to high levels. USEPA has set the
    drinking water standard for aldicarb at 0.003 parts per
    million
    (ppm)
    to reduce the risk of adverse health
    effects.
    Drinking water that meets this standard is
    associated with little to none of this risk and is
    considered safe with respect to aldicarb.
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    128
    26)
    Aldicarb sulfoxide.
    The United States Environmental
    Protection Agency
    (USEPA) sets drinking water standards
    and has determined that aldicarb sulfoxide is a health
    concern at certain levels of exposure.
    Aldicarb is a
    widely used pesticide.
    Aldicarb sulfoxide in
    groundwater is primarily a breakdown product of
    aldicarb.
    Under certain soil and climatic conditions
    (e.g.,
    sandy soil and high rainfall),
    aldicarb
    sulfoxide may leach into groundwater after normal
    agricultural applications to crops such as potatoes or
    peanuts or may enter drinking water supplies as a
    result of surface runoff.
    This chemical has been shown
    to damage the nervous system in laboratory animals such
    as rats and dogs exposed to high levels. USEPA has set
    the drinking water standard for aldicarb sulfoxide at
    0.004 parts per million
    (ppm)
    to reduce the risk of
    adverse health effects.
    Drinking water that meets this
    standard is associated with little to none of this risk
    and is considered safe with respect to áldicarb
    sulfoxide.
    27)
    Aldicarb sulfone.
    The United States Environmental
    Protection Agency
    (USEPA) sets drinking water standards
    and has determined that aldicarb sulfone is
    a health
    concern at certain levels of exposure.
    Aldicarb is a
    widely used pesticide.
    Aldicarb sulfone in groundwater
    is primarily a breakdown product of aldicarb.
    Under
    certain soil and climatic conditions
    (e.g.,
    sandy soil
    and high rainfall),
    aldicarb sulfone may leach into
    groundwater after normal agricultural applications to
    crops such as potatoes or peanuts or may enter drinking
    water supplies as a result of surface runoff.
    This
    chemical has been shown to damage the nervous system in
    laboratory animals such as rats and dogs exposed to
    high levels. USEPA has set the drinking water standard
    for aldicarb sulfone at 0.002 parts per million
    (ppm)
    to reduce the risk of adverse health effects.
    Drinking
    water that meets this standard is associated with
    little to none of this risk and is considered safe with
    respect to aldicarb sulfone.
    28)
    Atrazine.
    The United States Environmental Protection
    Agency
    (USEPA) sets drinking water standards and has
    determined that atrazine is a health concern at certain
    levels of exposure.
    This organic chemical is a
    herbicide.
    When soil and climatic conditions are
    favorable, atrazine may get into drinking water by
    runoff into surface water or by leaching into
    groundwater.
    This chemical has been shown to affect
    offspring of rats and the heart of dogs.
    USEPA has set
    the drinking water standard for atrazine at 0.003 parts
    per million
    (ppm)
    to protect against the risk of these
    U.
    ~
    - U
    4

    129
    adverse health effects.
    Drinking water that meets the
    USEPA standard
    is associated with little to none of
    this risk and is considered safe with respect to
    atrazme.
    29)
    Carbofuran.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that carbofuran is a health concern at
    certain levels of exposure.
    This organic chemical is
    a
    pesticide.
    When soil and climatic conditions are
    favorable,
    carbofuran may get into drinking water by
    runoff into surface water or by leaching into
    groundwater.
    This chemical has been shown to damage
    the nervous and reproductive systems of laboratory
    animals such as rats and mice exposed at high levels
    over their lifetimes.
    Some humans who were exposed to
    relatively large amounts of this chemical during their
    working careers also suffered damage to the nervous
    system.
    Effects on the nervous system are generally
    rapidly reversible.
    USEPA has set the drinking water
    standard for carbofuran at 004 parts per million
    (ppm)
    to protect against the risk of these adverse health
    effects.
    Drinking water that meets the USEPA standard
    is associated with little to none of this risk and
    is
    considered safe with respect to carbofuran.
    30)
    Chlordane.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that chlordane is a health concern at
    certain levels of exposure.
    This organic chemical is a
    pesticide used to control termites.
    Chlordane is not
    very mobile in soils.
    It usually gets into drinking
    water after application near water supply intakes or
    wells.
    This chemical has been shown to cause cancer in
    laboratory animals such as rats and mice when the
    animals are exposed at high levels over their
    lifetimes.
    Chemicals that cause cancer in laboratory
    animals also may increase the risk of cancer in humans
    who are exposed over long periods of time.
    USEPA has
    set the drinking water standard for chlordane at 0.002
    parts per million (ppm)
    to reduce the risk of cancer or
    other adverse health effects which have been observed
    in laboratory animals. Drinking water that meets the
    USEPA standard is associated with little to none of
    this risk and is considered safe with respect to
    chlordane.
    31)
    Dibromochloropropane
    (DBCP).
    The United States
    ~nvironmental Protection Agency
    (USEPA)
    sets drinking
    water standards and has determined that DBCP is a
    health concern at certain levels of exposure.
    This
    organic chemical was once a popular pesticide.
    When
    L~2-Q~~7
    I

    130
    soil and climatic conditions are favorable, DBCP may
    get into drinking water by runoff into surface water or
    by leaching into groundwater.
    This chemical has been
    shown to cause cancer in laboratory animals such as
    rats and mice when the animals are exposed at high
    levels over their lifetimes.
    Chemicals that cause
    cancer in laboratory animals also may increase the risk
    of cancer in humans who are exposed over
    long, periods
    of time.
    USEPA has set the drinking water standard for
    DBCP at 0.0002 parts per million
    (ppm)
    to reduce the
    risk of cancer or other adverse health effects which
    have been observed in laboratory animals.
    Drinking
    water that meets the USEPA standard is associated with
    little to none of this risk and is considered safe with
    respect to DBCP.
    32)
    o-Dichlorobenzene.
    The United States Environmental
    Protection Agency
    (USEPA)
    sets drinking water standards
    and has determined that o-dichlorobenzene is a health
    concern at certain levels of exposure.
    This organic
    chemical is used as a solvent in the production of
    pesticides and dyes.
    It generally gets into water by
    improper waste disposal.
    This chemical has been shown
    to damage the liver, kidney and the blood cells
    of
    laboratory animals such as rats and mice exposed to
    high levels during their lifetimes.
    Some industrial
    workers who were exposed to relatively large amounts of
    this chemical during working careers also suffered
    damage to the liver, nervous system, and circulatory
    system.
    USEPA has set the drinking water standard for
    o-dichlorobenzene at 0.6 parts per million (ppm)
    to
    protect against the risk of these adverse health
    effects.
    Drinking water that meets the USEPA standard
    is associated with little to none of this risk and is
    considered safe with respect to o—dichlorobenzene.
    33)
    cis-1,2-Dichloroethylene.
    The United States
    Environmental Protection Agency
    (USEPA) establishes
    drinking water standards and has determined that
    cis—1,2—dichloroethylene is a health concern at certain
    levels of exposure.
    This organic chemical is used as a
    solvent and intermediate in chemical production.
    It
    generally gets into water by improper waste disposal.
    This chemical has been shown to damage the liver,
    nervous system,
    and circulatory system of laboratory
    animals such as rats and mice when exposed at high
    levels over their lifetimes.
    Some humans who were
    exposed to relatively large amounts of this chemical
    also suffered damage to the nervous system.
    USEPA has
    set the drinking water standard for cis-1,2-dichloro—
    ethylene at 0.07 parts per million
    (ppm)
    to protect
    against the risk of these adverse health effects.
    U
    L.
    2
    U L~.
    7
    2

    131
    Drinking water that meets the USEPA standard is
    associated with little to none of this risk and is
    considered safe with respect to
    cis-1,2-dichloroethylene.
    34)
    trans—1,2-Dichloroethylene.
    The United States
    Environmental Protection Agency
    (USEPA)
    establishes
    drinking water standards and has determined that
    trans—1,2—dichloroethylene is a health concern at
    certain levels of exposure. This organic chemical is
    used as a solvent and intermediate in chemical
    production.
    It generally gets into water by improper
    waste disposal.
    This chemical has been shown to damage
    the liver, nervous system, and the circulatory system
    of laboratory animals such as rats and mice when
    exposed at high levels over their lifetimes.
    Some
    humans who were exposed to relatively large amounts of
    this chemical also suffered damage to the nervous
    system.
    USEPA has set the drinking water standard for
    trans—1,2-dichloroethylene at 0.1 parts per million
    (ppm)
    to protect against the risk of these adverse
    health effects.
    Drinking water that meets the USEPA
    standard is associated with little to none of this risk
    and is considered safe with respect to
    trans-i,2—dichioroethylene.
    35)
    1,2-Dichloropropane.
    The United States Environmental
    Protection Agency
    (USEPA) sets drinking water standards
    and has determined that 1,2-dichloropropane is a health
    concern at certain levels of exposure.
    This organic
    chemical
    is used as a solvent and pesticide.
    When soil
    and climatic conditions are favorable,
    1,2—
    dichloropropane may get into drinking water by runoff
    into surface water or by leaching into groundwater.
    It
    may also get into drinking water through improper waste
    disposal.
    This chemical has been shown to cause cancer
    in laboratory animals such as rats and mice when the
    animals are exposed at high levels over their
    lifetimes.
    Chemicals that cause cancer in laboratory
    animals also may increase the risk of cancer in humans
    who are exposed over long periods of time.
    USEPA has
    set the drinking water standard for 1,2-dichloropropane
    at 0.005 parts per million (ppm)
    to reduce the risk of
    cancer or other adverse health effects which have been
    observed in laboratory animals.
    Drinking water that
    meets the USEPA standard is associated with little to
    none of this risk and is considered safe with respect
    to
    1,2-dichloropropane.
    36)
    2,4—D.
    This contaminant is subject to a “additional
    State requirement”.
    The supplier shall give the
    following notice if the level exceeds the Section
    U
    U4 /
    ..)

    132
    611.311 MCL.
    If the level exceeds the Section 611.310
    MCL, but not that of Section 611.311, the supplier
    shall give
    a general notice under Section 611.854.
    The United States Environmental Protection Agency
    (USEPA) sets drinking water standards and has
    determined that 2,4—D is
    a health concern at certain
    levels of exposure.
    This organic chemical is used as a
    herbicide and to control algae
    in reservoirs.
    When
    soil and climatic conditions are favorable, 2,4—D may
    get into drinking water by runoff into surface water or
    by leaching into groundwater.
    This chemical has been
    shown to damage the liver and kidney of laboratory
    animals such as rats exposed at high levels during
    their lifetimes.
    Some humans who were exposed to
    relatively large amounts of this chemical also suffered
    damage to the nervous system.
    USEPA has set the
    drinking water standard for 2,4-D at 0.07 parts per
    million
    (ppm)
    to protect against the risk of these
    adverse health effects.
    Drinking water that meets the
    USEPA
    standard is associated with little to none of
    this risk and
    is considered safe with respect to 2,4-D.
    37)
    Epichlorohydrin.
    The United States Environmental
    Protection Agency
    (USEPA)
    sets drinking water standards
    and has determined that epichiorohydrin is a health
    concern at certain levels of exposure.
    Polymers made
    from epichlorohydrin are sometimes used in the
    treatment of water supplies as a flocculent to remove
    particulates.
    Epichlorohydrin generally gets into
    drinking water by improper use of these polymers.
    This
    chemical has been shown to cause cancer in laboratory
    animals such as rats and mice when the animals are
    exposed at high levels over their lifetimes.
    Chemicals
    that cause cancer in laboratory animals also may
    increase the risk of cancer in humans who are exposed
    over long periods of time.
    USEPA has set the drinking
    water standard for epichlorohydrin using a treatment
    technique to reduce the risk of cancer or other adverse
    health effects which have been observed in laboratory
    animals.
    This treatment technique limits the amount of
    epichlorohydrin in the polymer and the amount of the
    polymer which may be added to drinking water as a
    flocculent to remove particulates.
    Drinking water
    systems which comply with this treatment technique have
    little to no risk and are considered safe with respect
    to epichlorohydrin.
    38)
    Ethylbenzene.
    The United States Environmental
    Protection Agency
    (USEPA)
    sets drinking water standards
    and has determined ethylbenzene is a health concern at
    certain levels of exposure.
    This organic chemical is a
    O1k2-01’~7~

    133
    major component of gasoline.
    It generally gets into
    water by improper waste disposal or leaking gasoline
    tanks.
    This chemical has been shown to damage the
    kidney,
    liver, and nervous system of laboratory animals
    such as rats exposed to high levels during their
    lifetimes.
    USEPA has set the drinking water standard
    for ethylbenzene at 0.7 parts per million
    (ppm)
    to
    protect against the risk of these adverse health
    effects.
    Drinking water that meets the USEPA standard
    is associated with little to none of this risk and is
    considered safe with respect to ethylbenzene.
    39)
    Ethylene dibromide
    (EDB).
    The United States
    Environmental Protection Agency
    (USEPA) sets drinking
    water standards and has determined that EDB
    is a health
    concern at certain levels of exposure.
    This organic
    chemical was once a popular pesticide.
    When soil and
    climatic conditions are favorable, EDB may get into
    drinking water by runoff into surface water or by
    leaching into groundwater.
    This chemical has been
    shown to cause cancer in laboratory animals such as
    rats and mice when the animals are exposed at high
    levels over their lifetimes.
    Chemicals that cause
    cancer in laboratory animals also may increase the risk
    of cancer in humans who are exposed over long periods
    of time.
    USEPA has set the drinking water standard for
    EDB at 0.00005 parts per million
    (ppm)
    to reduce the
    risk of cancer or other adverse health effects which
    have been observed in laboratory animals.
    Drinking
    water that meets this standard is associated with
    little to none of this risk and is considered safe with
    respect to EDB.
    40)
    Heptachlor.
    This contaminant is subject to a
    “additional State requirement”.
    The supplier shall
    give the following notice if the level exceeds the
    Section 611.311 MCL.
    If the level exceeds the Section
    611.310 MCL,
    but not that of Section 611.311, the
    supplier shall give a general notice under Section
    611.854.
    The United States Environmental Protection Agency
    (USEPA)
    sets drinking water standards and has
    determined that heptachior is a health concern at
    certain levels of exposure.
    This organic chemical was
    once a popular pesticide.
    When soil and climatic
    conditions are favorable, heptachlor may get into
    drinking water by runoff into surface water or by
    leaching into groundwater.
    This chemical has been
    shown to cause cancer in laboratory animals such as
    rats and mice when the animals are exposed at high
    levels over their lifetimes. Chemicals that cause
    0tL~2’-UL75

    134
    cancer in laboratory animals also may increase the risk
    of cancer in humans who are exposed over long periods
    of time.
    USEPA has set the drinking water standards
    for heptachior at 0.0004 parts per million
    (ppm)
    to
    reduce the risk of cancer or other adverse health
    effects which have been observed in laboratory animals.
    Drinking water that meets this standard is associated
    with little to none of this risk and is considered safe
    with respect to heptachlor.
    41)
    Heptachlor epoxide.
    This contaminant is subject to a
    “additional State requirement”.
    The supplier shall
    give the following notice if the level exceeds the
    Section 611.311 MCL.
    If the level exceeds the Section
    611.310 MCL, but not that of Section 611.311, the
    supplier shall give a general notice under Section
    611.854.
    The United States Environmental Protection Agency
    (USEPA)
    sets drinking water standards and has
    determined that heptachlor epoxide is a health concern
    at certain levels of exposure.
    This organic chemical
    was once a popular pesticide.
    When soil and climatic
    conditions are favorable, heptachlor epoxide may get
    into drinking water by runoff into surface water or by
    leaching into groundwater.
    This chemical has been
    shown to cause cancer in laboratory animals such as
    rats and mice when the animals are exposed at high
    levels over their lifetimes.
    Chemicals that cause
    cancer in laboratory animals also may increase the risk
    of cancer in humans who are exposed over long periods
    of time.
    USEPA has set the drinking water standards
    for heptachlor epoxide at 0.0002 parts per million
    (ppm)
    to reduce the risk of cancer or other adverse
    health effects which have been observed in laboratory
    animals.
    Drinking water that meets this standard is
    associated with little to none of this risk and is
    considered safe with respect to heptachlor epoxide.
    42)
    Lindane.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that lindane is a health concern at certain
    levels of exposure.
    This organic chemical is used as a
    pesticide.
    When soil and climatic conditions are
    favorable,
    lindane may get into drinking water by
    runoff into surface water or by leaching into
    groundwater.
    This chemical has been shown to damage
    the liver,
    kidney, nervous system, and immune system of
    laboratory animals such as rats,
    mice and dogs exposed
    at high levels during their lifetimes.
    Some humans who
    were exposed to relatively large amounts of this
    chemical also suffered damage to the nervous system and
    L~tt4~.
    U4

    135
    circulatory system.
    USEPA has established the drinking
    water standard for lindane at 0.0002 parts per million
    (ppm)
    to protect against the risk of these adverse
    health effects.
    Drinking water that meets the USEPA
    standard is associated with little to none of this risk
    and is considered safe with respect to lindane.
    43)
    Methoxychior.
    The United States Environmental
    Protection Agency
    (USEPA)
    sets drinking water standards
    and has determined that methoxychlor is a health
    concern at certain levels of exposure.
    This organic
    chemical is used as a pesticide.
    When soil and
    climatic conditions are favorable, methoxychlor may get
    into drinking water by runoff into surface water or by
    leaching into groundwater.
    This chemical has been
    shown to damage the liver,
    kidney, nervous system, and
    reproductive system of laboratory animals such as rats
    exposed at high levels during their lifetimes.
    It has
    also been shown to produce growth retardation in rats.
    USEPA has set the drinking water standard for
    methoxychlor at 0.04 parts per million
    (ppm)
    to protect
    against the risk of these adverse health effects.
    Drinking water that meets the USEPA standard is
    associated with little to none of this risk and is
    considered safe with respect to methoxychlor.
    44)
    Monochlorobenzene.
    The United States Environmental
    Protection Agency
    (USEPA) sets drinking water standards
    and has determined that monochlorobenzene is a health
    concern at certain levels of exposure.
    This organic
    chemical is used as a solvent.
    It generally gets into
    water by improper waste disposal.
    This chemical has
    been shown to damage the liver, kidney and nervous
    system of laboratory animals such as rats and mice
    exposed to high levels during their lifetimes.
    USEPA
    has set the drinking water standard for
    monochlorobenzene at 0.1 parts per million
    (ppm)
    to
    protect against the risk of these adverse health
    effects.
    Drinking water that meets the USEPA standard
    is associated with little to none of this risk and is
    considered safe with respect to monochlorobenzene.
    45)
    Polychlorinated biphenyls (PCB5).
    The United States
    Environmental Protection Agency
    (USEPA) sets drinking
    water standards and has determined that polychlorinated
    biphenyls (PCB5)
    are
    a health concern at certain levels
    of exposure.
    These organic chemicals were once widely
    used in electrical transformers and other industrial
    equipment.
    They generally get into drinking water by
    improper waste disposal or leaking electrical
    industrial equipment.
    This chemical has been shown to
    cause cancer in laboratory animals such as rats and
    0
    b.2-OL~77

    136
    mice when the animals are exposed at high levels over
    their lifetimes.
    Chemicals that cause cancer in
    laboratory animals also may increase the risk of cancer
    in humans who are exposed over long periods of time.
    USEPA has set the drinking water standard for PCB5 at
    0.0005 parts per million
    (ppm)
    to reduce the risk of
    cancer or other adverse health effects which have been
    observed in laboratory animals.
    Drinking water that
    meets this standard is associated with little to none
    of this risk and is considered safe with respect to
    PCB5.
    46)
    Pentachiorophenol.
    The United States Environmental
    Protection Agency
    (USEPA) sets drinking water standards
    and has determined that pentachlorophenol is a health
    concern at certain levels of exposure.
    This organic
    chemical is widely used as a wood preservative,
    herbicide, disinfectant, and defoliant.
    It generally
    gets into drinking water by runoff into surface water
    or leaching into groundwater.
    This chemical has been
    shown to produce adverse reproductive effects and to
    damage the liver and kidneys of laboratory animals such
    as rats and mice when the animals are exposed at high
    levels over their lifetimes.
    Some humans who were
    exposed to relatively large amounts of this chemical
    also suffered damage to the liver and kidneys.
    This
    chemical has been shown to cause cancer in laboratory
    animals such as rats and mice when the animals are
    exposed at high levels over their lifetimes.
    Chemicals
    that cause cancer in laboratory animals also may
    increase the risk of cancer in humans who are exposed
    over long periods of time.
    USEPA has set the.drinking
    water standard for pentachlorophenol at 0.001 parts per
    million
    (ppm)
    to reduce the risk of adverse ‘health
    effects.
    Drinking water that meets this standard is
    associated with little to none of this risk and is
    considered safe with respect to pentachlorophenol.
    47)
    Styrene.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that styrene is a health concern at certain
    levels of exposure.
    This organic chemical is commonly
    used to make plastics and is sometimes a component of
    resins used for drinking water treatment.
    Styrene may
    get into drinking water from improper waste disposal.
    This chemical has been shown to damage the liver and
    nervous system in laboratory animals when exposed at
    high levels during their lifetimes.
    USEPA has set the
    drinking water standard for styrene at 0.1 parts per
    million
    (ppm)
    to protect against the risk of these
    adverse health effects. Drinking water that meets the
    USEPA standard is associated with little to none of
    01
    L:.-Ut1.78

    137
    this risk and is considered safe with respect to
    styrene.
    48)
    Tetrachloroethylene.
    The United States Environmental
    Protection Agency
    (USEPA)
    sets drinking water standards
    and has determined that tetrachloroethylene is a health
    concern at certain levels of exposure.
    This organic
    chemical has been a popular solvent, particularly for
    dry cleaning.
    It generally gets into drinking water by
    improper waste disposal.
    This chemical has been shown
    to cause cancer in laboratory animals such as rats and
    mice when the animals are exposed at high levels over
    their lifetimes.
    Chemicals that cause cancer in
    laboratory animals also may increase the risk of cancer
    in humans who are exposed over long periods of time.
    USEPA has set the drinking water standard for
    tetrachloroethylene at 0.005 parts per million
    (ppm)
    to
    reduce the risk of cancer or other adverse health
    effects which have been observed in laboratory animals.
    Drinking water that meets this standard is associated
    with little to none of this risk and is considered safe
    with respect to tetrachioroethylene.
    49)
    Toluene.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that toluene is a health concern at certain
    levels of exposure.
    This organic chemical is used as a
    solvent and in the manufacture of gasoline for
    airplanes.
    It generally gets into water by improper
    waste disposal or leaking underground storage tanks.
    This chemical has been shown to damage the kidney,
    nervous system, and circulatory system of laboratory
    animals such as rats and mice exposed to high levels
    during their lifetimes.
    Some industrial workers who
    were exposed to relatively large amounts of this
    chemical during working careers also suffered damage to
    the liver, kidney and nervous system.
    USEPA has set
    the drinking water standard for toluene at
    1 part per
    million
    (ppm)
    to protect against the risk of these
    adverse health effects.
    Drinking water that meets the
    USEPA standard is associated with little to none of
    this risk and is considered safe with respect to
    toluene.
    50)
    Toxaphene.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that toxaphene is a health concern at
    certain levels of exposure.
    This organic chemical was
    once a pesticide widely used on cotton, corn,
    soybeans,
    pineapples and other crops.
    When soil and climatic
    conditions are favorable, toxaphene may get into
    drinking water by runoff into surface water or by
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    ~
    ~
    ~
    u4

    138
    leaching into groundwater.
    This chemical has been
    shown to cause cancer in laboratory animals such as
    rats and mice when the animals are exposed at high
    levels over their lifetimes. Chemicals that cause
    cancer in laboratory animals also may increase the risk
    of cancer in humans who are exposed over long periods
    of time.
    USEPA has set the drinking water standard for
    toxaphene at 0.003 parts per million
    (ppm)
    to reduce
    the risk of cancer or other adverse health effects
    which have been observed in laboratory animals.
    Drinking water that meets this standard is associated
    with little to none of this risk and is considered safe
    with respect to toxaphene.
    51)
    2,4,5-TP.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that 2,4,5—TP is a health concern at certain
    levels of exposure.
    This organic chemical is used as a
    herbicide.
    When soil and climatic conditions are
    favorable, 2,4,5-TP may get into drinking water by
    runoff into surface water or by leaching into
    groundwater.
    This chemical has been shown to damage
    the liver and kidney of laboratory animals such as rats
    and dogs exposed to high levels during their lifetimes.
    Some industrial workers who were exposed to relatively
    large amounts of this chemical during working careers
    also suffered damage to the nervous system.
    USEPA has
    set the drinking water standard for 2,4,5—TP at 0.05
    parts per million
    (ppm)
    to protect against the risk of
    these adverse health effects. Drinking water that meets
    the USEPA standard is associated with little to none of
    this risk and is considered safe with respect to
    2,4,5—TP.
    52)
    Xylenes.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that xylene is a health concern at certain
    levels of exposure.
    This organic chemical is used in
    the manufacture of gasoline for airplanes and as
    a
    solvent for pesticides, and as
    a cleaner and degreaser
    of metals.
    It usually gets into water by improper waste
    disposal. This chemical has been
    shown
    to damage the
    liver, kidney and nervous system of laboratory animals
    such as rats and dogs exposed to high levels during
    their lifetimes.
    Some humans who were exposed to
    relatively large amounts of this chemical also suffered
    damage to the nervous system.
    USEPA has set the
    drinking water standard for xylene at 10 parts per
    million
    (ppm)
    to protect against the risk of these
    adverse health effects.
    Drinking water that meets the
    USEPA standard is associated with little to none of
    this risk and is considered safe with respect to
    L~2~-C’L~80

    139
    xylene.
    ~j.
    Antimony.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that antimony is a health concern at certain
    levels of exposure.
    This inorganic chemical occurs
    naturally in soils,
    ground water, and surface water and
    is often used in the flame retardant industry.
    It is
    also used
    in ceramics and glass, batteries,
    fireworks,
    and explosives.
    It may get into drinking water through
    natural weathering of rock,
    industrial production.
    municipal waste disposal, or manufacturing processes.
    This chemical has been shown to decrease longevity, and
    altered blood levels of cholesterol and glucose in
    laboratory animals such as rats exposed to high levels
    during their lifetimes.
    USEPA has set the drinking
    water standard for antimony at 0.006 carts Per million
    (ppm) to protect against the risk of these adverse
    health effects.
    Drinking water that meets the USEPA
    standard is associated with little to none of this risic
    and is considered safe with respect to antimony.
    ,~jj.. Beryllium.
    The United States Environmental Protection
    A~encv (USEPA) sets drinking water standards and has
    determined that beryllium is a health concern at
    certain levels of exposure.
    This inorganic chemical
    occurs naturally in soils. ground water, and surface
    water and is often used in electrical eciuipment and
    electrical components.
    It generally gets into water
    from runoff from mining operations, discharge from
    processing plants, and improper waste disposal.
    Beryllium compounds have been associated with damage to
    the bones and lungs and induction of cancer in
    laboratory animals such as rats and mice when the
    animals are exposed to high levels during their
    lifetimes.
    There is limited evidence to suggest that
    beryllium may Pose a cancer risk via drinking water
    exposure.
    Therefore, USEPA based the health assessment
    on noncancer effects with and extra uncertainty factor
    to account for possible carcinogenicitv.
    Chemicals
    that_cause cancer in laboratory animals also may
    increase the risk of cancer in humans who are exposed
    over long periods of time.
    USEPA has set the drinking
    water standard for beryllium at 0.004 Parts per million
    (~~m)to protect against the risk of these adverse
    health effects.
    Drinking water that meets the USEPA
    standard is associated with little to none of this risk
    and is considered safe with respect to beryllium.
    ~j
    Cyanide.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that cyanide is
    a health concern at certain
    U
    I
    ~
    U4

    140
    levels of exposure.
    This inorganic chemical is used in
    electroplating,
    steel processing. plastics,
    synthetic
    fabrics, and fertilizer products.
    It usually gets into
    water as a result of improper waste disposal.
    This
    chemical has been shown to damage the spleen, brain,
    and liver of humans fatally poisoned with cyanide.
    USEPA has set the drinking water standard for cyanide
    at 0.2 parts per million
    (ppm)
    to protect against the
    risk of these adverse health effects.
    Drinking water
    that meets the USEPA standard is associated with little
    to none of this risk and is considered safe with
    respect to cyanide.
    ~
    Nickel.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that nickel
    is
    a health concern at certain
    levels of exposure.
    This inorganic chemical occurs
    naturally in soils, ground water,
    and surface water and
    is often used in electroplating,
    stainless steel, and
    alloy products.
    It generally gets into water from
    mining and refining operations.
    This chemical has been
    shown to damage the heart and liver
    in laboratory
    animals when the animals are exposed to high levels
    over their lifetimes.
    USEPA has set the drinking water
    standard at 0.1 parts per million (~~m)for nickel to
    protect against the risk of these adverse health
    effects.
    Drinking water that meets the USEPA standard
    is associated with little to none of this risk and is
    considered safe with respect to nickel.
    ~fl
    Thallium.
    The United States Environmental Protection
    Agency
    (USEPA) sets drinking water standards and has
    determined that thallium is a health concern at certain
    high levels of exposure.
    This inorganic chemical
    occurs naturally in soils, pround water, and surface
    water and is used in electronics, pharmaceuticals, and
    the manufacture of glass and alloys.
    This chemical has
    been shown to damage the kidney.
    liver,
    brain,
    and
    intestines of laboratory animals when the animals are
    exposed to high levels during their lifetimes.
    USEPA
    has set the drinking water standard for thallium at
    0.002 parts per million
    (tpm)
    to protect against the
    risk of these adverse health effects.
    Drinking water
    that meets the USEPA standard is associated with little
    to none of this risk and is considered safe with
    respect to thallium.
    ~j
    Benzo(a)pyrene.
    The United States Environmental
    Ptotection Agency
    (USEPA) sets drinking water standards
    and has determined that benzo(a)pyrene is a health
    concern at certain levels of exposure.
    Cigarette smoke
    and charbroiled meats are common sources of general
    Ut4~
    ~jL~

    141
    exposure.
    The malor source of benzo(a)~yrenein
    drinking water is the leaching from coal tar lining and
    sealants in water storage tanks.
    This chemical has
    been shown to cause cancer in animals such as rats and
    mice when the animals are exposed to high levels.
    USEPA has set the drinking water standard for benzo(a)-
    ~vrene at 0.0002 parts per million
    (ppm)
    to protect
    against the risk cancer.
    Drinking water that meets the
    USEPA standard is associated with little to none of
    this risk and is considered safe with resPect to benzo—
    (a)Pvrene.
    ~
    dalapon.
    The United States Environmental Protection
    A~encv (USEPA) sets drinking water standards and has
    determined that dalaPon is a health concern at certain
    levels of exposure.
    This organic chemical is a widely
    used herbicide.
    It may ~et into drinking water after
    application to control grasses j~crops, drainage
    ditches, and alon~railroads.
    This chemical has been
    associated with damage to the kidney and liver in
    laboratory animals when the animals are exposed to high
    levels during their lifetimes.
    USEPA has set the
    drinking water standard for dala~onat 0.2 parts per
    million
    (ppm)
    to protect against the risk of these
    adverse health effects.
    Drinking water that meets the
    USEPA standard is associated with little to none of
    this risk and is considered safe with respect to
    dalapon.
    ~
    Dichloromethane.
    The United States Environmental
    Protection Agency
    (USEPA) sets drinking water standards
    and has determined that dichloromethane
    (methvlene
    chloride)
    is a health concern at certain levels of
    exposure.
    This organic chemical is
    a widely used
    solvent.
    It
    is used in the manufacture of paint
    remover,
    as a metal degreaser, and as an aerosol
    proPellant.
    It generally nets into water after
    improper discharge of waste disposal.
    This chemical
    has been shown to cause cancer in laboratory animals
    such as rats and mice when the animals are exPosed to
    high levels during their lifetimes.
    Chemicals that
    cause cancer in laboratorY animals also maY increase
    the risk of cancer in humans who are exposed over lon~
    periods of time.
    USEPA has set the drinking water
    standard for dichloromethane at 0.005 parts per million
    (~~m)to Protect against the risk of cancer or other
    adverse health effects.
    Drinking water that meets the
    USEPA standard
    is associated with little to none of
    this risk and is considered safe with respect to
    dichloromethpne.
    ~jJ
    Di(2-ethvlhexyl)adipate.
    The United States
    0
    L~2-0L~.83

    142
    Environmental Protection Agency
    (USEPA)
    sets drinking
    water standards and has determined that di(2-ethvl-
    hexyl)adipate is
    a health concern at certain levels of
    exposure.
    Di(2-ethylhexyl)adipate is a widely used
    plasticizer in a variety of products,
    including
    synthetic rubber,
    food packaging materials, and
    cosmetics.
    It may get into drinking water after
    improper waste disposal.
    This chemical has been shown
    to damage the liver and testes in laboratory animals
    such as rats and mice when the animals are exposed to
    high levels.
    USEPA has set the drinking water standard
    for di(2-ethylhexyl)adipate at 0.4 parts per million
    (ppm)
    to protect against the risk of adverse health
    effects.
    Drinking water that meets the USEPA standard
    is associated with little to none of this risk and is
    considered safe with respect to di(2—ethylhexyl)-
    adipate.
    ~j
    Di (2-ethylhexvl)phthalate.
    The United States
    Environmental Protection Agency
    (USEPA)
    sets drinking
    water standards and has determined that di(2-ethyl—
    hexyl)phthalate is
    a health concern at certain levels
    of exposure.
    Di(2-ethylhexyl)phthalate is a widely
    used plasticizer, which is primarily used in the
    production of polyvinyl chloride
    (PVC)
    resins.
    It may
    get into drinking water after improper waste disposal.
    This chemical has been’shown to cause cancer in
    laboratory animals such as rats and mice when the
    animals are exposed to high levels during their
    lifetimes.
    USEPA has set the drinking water standard
    for di(2—ethvlhexyl)phthalate at 0.004 parts per
    million
    (ppm)
    to protect against the risk of cancer or
    other adverse health effects which have been abserved
    in laboratory animals.
    Drinking water that meets the
    USEPA standard is associated with little to none of
    this risk and is considered safe with respect to di-
    (2-ethyihexyl)phthalate.
    ~fl.
    Dinoseb.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that dinoseb is a health concern at certain
    levels of exposure.
    Dinoseb is a widely used pesticide
    and generally gets into water after application on
    orchards, vineyards,
    and other crops.
    This chemical
    has been shown to damage the thyroid and reproductive
    organs in laboratory animals such as rats exposed to
    high levels.
    USEPA has set the drinking water standard
    for dinoseb at 0.007 carts per million (~~m)to protect
    a~ainstthe risk of these adverse health effects.
    Drinking water that meets the USEPA standard is
    associated with little to none of this risk and is
    considered safe with respect to dinoseb.
    01
    L2-L~L~3Li.

    143
    ~
    pjquat.
    The United States Environmental Protection
    A~ency(USEPA)
    sets drinking water standards and has
    determined that diquat is a health concern at certain
    ~ve1s
    of exposure.
    This organic chemical is a
    herbicide used to control terrestrial and aquatic
    weeds.
    It may get into drinking water by runoff into
    surface water.
    This chemical has been shown to dama~e
    the liver, kidney,
    and gastrointestinal tract and
    causes cataract formation in laboratory animals such as
    dogs and rats exposed at high levels over their
    lifetimes.
    USEPA has set the drinking water standard
    for djauat at 0.02 Parts ~er million
    (ppm)
    to protect
    ~gainst the risk of these adverse health effects.
    Drinking water that meets the USEPA standard is
    associated with little to none of this risk and is
    considered safe with respect to diquat.
    ~j
    Endothall.
    The United States Environmental Protection
    A~encv (USEPA) sets drinking water standards and has
    determined that endothall is a health concern at
    certain levels of exposure.
    This organic chemical is a
    herbicide used to control terrestrial and aquatic
    weeds.
    It may ~et into drinking water by runoff into
    surface water.
    This chemical has been shown to damage
    the liver,
    kidney, gastrointestinal tract,
    and
    reproductive system of laboratorY animals such as rats
    and mice exposed at high levels over their lifetimes.
    USEPA has set the drinking water standard for endothall
    at 0.1 parts Per million (~~m)to protect against the
    risk Df these adverse health effects.
    Drinking water
    that meets the USEPA standard is associated with little
    to none of this risk and
    is considered safe with
    respect to endothall.
    ~
    Endrin.
    The United States Environmental Protection
    Aaencv
    (USEPA) sets drinking water standards and has
    determined that endrin is a health concern at certain
    levels of exposure.
    This organic chemical is a
    pesticide no longer registered for use in the United
    States.
    However, this pesticide is persistent
    in
    treated soils and accumulates in sediments and aquatic
    and terrestrial biota.
    This chemical has been shown to
    cause damage to the liver, kidney. and heart in
    laboratory animals such as rats and mice when the
    animals are exPosed to high levels during their
    lifetimes.
    USEPA has set the drinking water standard
    for endrin at 0.002 parts Per million
    (rpm)
    to protect
    ~g~inst the risk of these adverse health effects that
    have been observed in laboratory animals.
    Drinking
    water that meets the USEPA standard is associated with
    little to none of this risk and is considered safe
    with
    respect to endrin.
    0
    c..
    U
    ‘~
    U

    144
    ~fl
    Glyphosate.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that glyphosate is a health concern at
    certain levels of exposure.
    This organic chemical
    is a
    herbicide used to control grasses and weeds.
    It may
    ~et into drinking water by runoff into surface water.
    This chemical has been shown to cause damage to the
    liver and kidneys
    in laboratory animals such as rats
    and mice when the animals are exposed to high levels
    during their lifetimes.
    USEPA has set the drinking
    water standard for glyphosate at 0.7 parts per million
    (ppm)
    to protect against the risk of these adverse
    health effects.
    Drinking water that meets the USEPA
    standard is associated with little to none of this risk
    and_is_considered safe with respect to glyphosate.
    ~fl
    Hexachlorobenzene.
    The United States Environmental
    Protection Agency
    (USEPA)
    sets drinking water standards
    and has determined that hexachlorobenzene is a health
    concern at certain levels of exposure.
    This organic
    chemical is produced as an impurity in the manufacture
    ‘of certain solvents and pesticides.
    This chemical has
    been shown to cause cancer in laboratory animals such
    as rats and mice when the animals are exposed to high
    levels during their lifetimes.
    Chemicals that cause
    cancer in laboratory animals also may increase the risk
    of cancer in humans who are exposed over long periods
    of time.
    USEPA has set the drinking water standard for
    hexachlorobenzene at 0.001 parts per million
    (ppm)
    to
    protect against the risk of cancer and other adverse
    health effects.
    Drinking water that meets the USEPA
    standard is associated with little to none of this risk
    and is considered safe with respect to hexachloro—
    benzene.
    ~j
    Hexachlorocyclopentadiene.
    The United States
    Environmental Protection Agency
    (USEPA) sets drinking
    water standards and has determined that hexachlorocyc—
    lopentadiene is
    a health concern at certain levels of
    exposure.
    This organic chemical is a used as an
    intermediate in the manufacture of pesticides and flame
    retardants.
    It may get into water by discharge from
    production facilities.
    This chemical has been shown to
    damage the kidney and the stomach of laboratory animals
    when exposed to high levels during their lifetimes.
    USEPA has set the drinking water standard for hexa-
    chiorocyclopentadjene at 0.05 parts per million
    (ppm)
    to protect against the risk of these adverse health
    effects.
    Drinking water that meets the USEPA standard
    is associated with little to none of this risk and is
    considered safe with respect to hexachiorocyclopenta—
    diene.
    0
    L~2-Ot~.86

    145
    ~Qj
    Oxamyl.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that oxamyl is
    a health concern at certain
    levels of exposure.
    This organic chemical is used as a
    pesticide for the control of insects and other pests.
    It may get into drinking water bY runoff into surface
    water or leaching into ground water.
    This chemical has
    been shown to dama~ethe kidneys of laboratory animals
    such as rats when exposed at high levels during their
    lifetimes.
    USEPA has set the drinking water standard
    for oxamvl at 0.2 parts per million (~~m)to protect
    against the risk of these adverse health effects.
    Drinking water that meets the USEPA standard is
    associated with little to none of this risk and is
    considered safe with respect to oxamyl.
    2J.1.
    Picloram.
    The United States Environmental Protection
    Agency
    (USEPA)
    sets drinking water standards and has
    determined that picloram is a health concern at certain
    levels of exposure.
    This organic chemical is used as a
    pesticide for broadleaf weed control.
    It may get into
    drinking water by runoff into surface water or leaching
    into groundwater as a result of pesticide application
    and improper waste disposal.
    This chemical has been
    shown to cause damage to the kidneys and liver in
    laboratory animals such as rats when the animals are
    exposed to high levels during their lifetimes.
    USEPA
    has set the drinking water standard for picloram at 0.5
    parts per million (~~m)to protect against the risk of
    these adverse health effects.
    Drinking water that
    meets the USEPA standard is associated with little to
    none of this risk and is considered safe with respect
    to picloram.
    221
    Simazine.
    The United States Environmental Protection
    Agency
    (USEPA) sets drinking water standards and has
    determined that siuiazine is a health concern at certain
    levels of exposure.
    This organic chemical is a
    herbicide used to control annual grasses and broadleaf
    weeds.
    It may leach into groundwater or run off into
    surface water after application.
    This chemical may
    cause cancer in laboratory animals such as rats and
    mice when the animals are exposed to high levels during
    their lifetimes.
    Chemicals that cause cancer in
    laboratory animals also may increase the risk of cancer
    in humans who are exposed over long periods of time.
    USEPA has set the drinking water standard for siniazine
    at 0.004 Parts ~er million (~~m)to reduce the risk of
    cancer or adverse health effects.
    Drinking water that
    meets the USEPA standard is associated with little to
    none of this risk and is considered safe with respect
    to simazine.
    C)
    U ~ U
    I

    146
    .U1
    1,2,4-Trichlorobenzene.
    The United States
    Environmental Protection Agency
    (USEPA)
    sets drinking
    water standards and has determined that 1,2,4—tn-
    chlorobenzene is a health concern at certain levels of
    exposure.
    This organic chemical is used as a dye
    carrier and as
    a precursor in herbicide manufacture.
    It generally gets into drinking water by discharges
    from industrial activities.
    This chemical has been
    shown to cause damage to several organs, including the
    adrenal glands.
    USEPA has set the drinking water
    standard for 1.2,4—trichlorobenzene at 0.07 parts per
    million
    (ppm)
    to Protect against the risk of these
    adverse health effects.
    Drinking water that meets the
    USEPA standard
    is associated with little to none of
    this risk and is considered safe with respect to
    1,2,4—trichlorobenzene.
    .141
    1,1,2-Trichloroethane.
    The United States Environmental
    Protection Agency
    (USEPA)
    sets drinking water standards
    and has determined that l,1,2-trjchloroethane is a
    health concern at certain levels of exposure.
    This
    organic chemical
    is an intermediate in the production
    of 1,l-dichloroethylene.
    It generally gets into water
    by industrial discharge of wastes.
    This chemical has
    been shown to damage the kidney and liver of laboratory
    animals such as rats exposed to high levels during
    their lifetimes.
    USEPA has set the drinking water
    standard for 1,1,2-trichloroethane at 0.005 parts per
    million
    (ppm)
    to protect against the risk of these
    adverse health effects.
    Drinking water that meets the
    USEPA standard is associated with little to none of
    this risk and is considered safe with respect to
    1,1,2-trichloroethane.
    2~1
    2~7~—TCflT)
    (riiwin~
    Ph~IlnitAd St.~t~Rnvironm~nta1
    Protection Agency
    (USEPA) sets drinking water standards
    and has determined that dioxin is a health concern at
    certain levels of exposure.
    This organic chemical is
    an impurity in the production of some pesticides.
    It
    may get into drinking water by industrial discharge of
    wastes.
    This chemical has been shown to cause cancer
    in laboratory animals such as rats and mice when the
    animals are exposed to high levels during their
    lifetimes.
    Chemicals that cause cancer in laboratory
    animals also may increase the risk of cancer in humans
    who are exposed over long periods of time.
    USEPA has
    set the drinking water standard for dioxin at
    0.00000003 parts per million
    (Ppm) to protect against
    the risk of cancer or other adverse health effects.
    ~~ing
    water that meets the USEPA standard is
    associated with little to none of this risk and is
    considered safe with respect to dioxin.
    C!
    L~
    2
    U
    L~
    8 3

    147
    BOARD
    NOTE:
    Derived from 40 CFR 141.32(e)
    (1992),
    as
    amended at
    57 Fed.
    Reg.
    31843
    (July 17, 1992~.
    (Source:
    Amended at 17 Ill. Reg.
    _________,
    effective
    __________
    __________________________)
    Section
    611.Table
    Z
    Federal
    Effective
    Dates
    The
    following
    are
    the
    effective
    dates
    of
    the
    federal
    MCLs:
    Fluoride
    (40
    CFR
    141.60(b)
    (1))
    October
    2,
    1987
    (corresponding with Section 611.301(b))
    Phase
    I
    VOCs
    (40
    CFR
    141.60(a)
    (1))
    July
    9,
    1989
    (corresponding with Section 611.311(a))
    (benzene, carbon tetrachioride, p-dichlorobenzene.,
    1,2-Dichloroethane,
    1, 1—dichioroethylene, 1,1,1—tn—
    chloroethane, trichioroethylene, and vinyl chloride)
    Lead
    and
    Copper
    (40
    CFR,
    Subpart
    I)
    July
    7,
    1991
    (corresponding
    with
    Subpart
    G
    of
    this
    Part)
    (lead and copper monitoring, reporting, and
    recordskeeping requirements of
    40 CFR 141.86 through
    141.91)
    Phase
    II
    lOCs
    (40
    CFR
    141.60(b)
    (2))
    July
    30,
    1992
    (corresponding with Section 611.301(b))
    (asbestos, cadmium,
    chromium, mercury, nitrate,
    nitrite,
    and selenium)
    Phase
    II
    VOCs
    (40
    CFR
    141.60(a)
    (2))
    July
    30,
    1992
    (corresponding with Section 611.311(a))
    (o—dichlorobenzene, cis—1,2—dichioroethylene,
    trans—
    1, 2-dichloroethylene,
    1, 2—dichloropropane,
    Gthyl-
    benzene, monochlorobenzene,
    styrene, tetrachloroethyl—
    ene, toluene, and xylenes
    (total))
    Phase
    II
    SOC5
    (40
    CFR
    141.60(a)
    (2))
    July
    30,
    1992
    (corresponding with Section 611.311(c))
    (alachlor,
    atrazine, carbofuran, chlordane, dibromo—
    chloropropane, ethylene dibromide, heptachlor,
    heptachlor epoxide,
    lindane, methoxychlor, poly—
    chlorinated biphenyls,
    toxaphene,
    2,4-D,
    and 2,4,5-TP
    (Silvex))
    Lead
    and
    Copper
    (40
    CFR,
    Subpart
    I)
    December
    7,
    1992
    (corresponding with Subpart G of this Part)
    (lead and copper corrosion control, water treatment,
    public education, and lead service line replacement
    requirements of 40 CFR 141.81 through 141.85)
    Phase
    IIB
    IOC
    (40
    CFR
    141.60(b)
    (2))
    January
    1,
    1993
    U
    I
    2
    0 ~8
    9

    148
    (corresponding with Section 611.301(b))
    (barium)
    Phase IIB SOCs
    (40 CFR 141.60(a) (2))
    January 1,
    1993
    (corresponding with Section 611.311(c))
    (aldicarb,
    aldicarb sulfone, aldicarb sulfoxide,
    and
    pentachlorophenol; USEPA stayed the effective date as
    to the MCLs for aldicarb, aldicarb sulfone,
    and
    aldicarb sulfoxide,
    but the monitoring requirements
    became effective January
    1,
    1993)
    Phase V lOCs
    (40 CFR 141.60(b) (3))
    January 17,
    1994
    (corresponding with Section 611.301(b))
    (antimony.
    beryllium,
    cyanide, nickel, and thallium)
    Phase V VOCs
    (40 CFR 141.60(a) (3))
    January
    17,
    1994
    (corresponding with Section 611.311(a))
    (dichioroinethane.
    1,2 ,4—trichlorobenzene, and 1,1.2—
    tnichioroethane)
    Phase V SOC5 (40 CFR 141.60(a) (3))
    January
    17, 1994
    (corresponding with Section 611.311(c))
    (benzolalpyrene,
    dalapon. di(2-ethylhexyl)adipate. di-
    (2-ethylhexyl)phthalate dinoseb, diquat,
    endothall.
    endnin, glyphosate.
    hexachlorobenzene. hexachlorocvclo—
    pentadiene,
    oxamyl, picloram, simazine, and 2,3,7,8—
    TCDD)
    (Source:
    Amended at
    17 Ill.
    Reg.
    _________,
    effective
    __________
    0;~2-0L~9O

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