ILLINOIS POLLUTION CONTROL BOARD
    June 10,
    1981
    In The Matter Of:
    Proposed Amendment
    )
    to Chapter
    8:
    Noise Regulations,
    )
    R80—9,
    10
    Rules
    101,
    206,
    208,
    and 209
    ADOPTED RULE.
    FINAL ACTION
    FINAL OPINION OF THE BOARD
    (by 3.
    Anderson):
    This Opinion is written in support of new Rule 210 and
    amendments to Rules
    101,
    206, 208 and 209 of Chapter
    8:
    Noise
    Regulations, adopted May
    28,
    1981 by the Board as final rules
    to
    become effective June
    1,
    1981.
    By
    letter of May 12,
    1981,
    JCAR
    stated it had no objections to these rules.
    Procedural History
    In the original Chapter
    8:
    Noise Regulations, promulgated
    in 1973,
    Rule 209(f)
    exempted “every owner or operator of Class C
    land” who conducts necessary explosive blasting activities from
    complying with the sound limitations contained in Rule 206
    R72—2,
    8 PCB
    653,
    702
    (July
    26,
    31,
    1973).
    This original exemption was
    granted because no method was known at that time for bringing
    blasting noise into compliance with the Rule 206
    limits.
    As
    a
    result of the subsequent R76-16 proceeding, the exemption was
    extended until January
    1,
    1981.
    While some techniques to mitigate
    the air blast and ground vibration of blasting had been developed
    during the first exemption period, the Board granted the extension
    because of its agreement with industry, the Illinois Institute of
    Natural Resources
    (Institute) and the Illinois Environmental Pro-
    tection Agency (Agency)
    that more research was needed to determine
    the proper descriptor for human response to blasting noise.
    The
    single most important piece of research awaited by the parties was
    a study
    to be completed by the
    US.
    Bureau of Mines
    (USBM)
    tR76—16,
    32 PCB
    457,
    458
    (January
    18,
    1979).
    On May 15,
    1980,
    the Mining Industry
    Task Force on Impulsive
    Noise and Vibration
    (Task Force) proposed that the Board extend
    the exemption until June
    1,
    1983.
    The Task Force explained that
    there had been a delay
    in the USBM research schedule, but that
    its research report on the “Human Response to Blast Noise and
    *The Board wishes to express its appreciation for the
    assistance of Kathleen M.
    Crowley, Administrative Assistant to
    J.
    7~ndersonand Hearing Officer herein in the drafting of this
    Opinion,
    as well
    as the aid of William Withrow,
    Technical
    Assistant to the Board.
    42—79

    2
    Ground Structure Vibrations” was expected
    to he completed
    in
    mid—1982
    (Docket R80—9).
    On July
    10,
    1980, the Agency proposed
    enactment of certain “interim” sound limitations during this
    waiting period
    (Docket R80—10).
    Each proposal was published
    in the Environmental Register,
    R80—9
    in
    #219,
    June 23,
    1980 and R80—10
    in #221,
    August
    5,
    1980.
    By its Order of July 10,
    1980,
    the Board consolidated these
    proposals for the purposes of hearing and decision.
    Three hearings were held on the consolidated proposals
    in
    the
    following locations:
    Chicago
    August 12,
    1980
    Springfield
    August
    13,
    1980
    Chicago
    September 24,
    1980
    Evidence concerning each proposal’s merit and economic
    impact ~ias
    received at each hearing.
    Separate economic impact hearings were
    not held,
    as the Institute had filed a statement in each case
    Lha~
    preparation of a formal economic impact statement was not tech-
    nically feasible at that time due to lack of economic parameters
    and essential data which would be available only after completion
    of the USBM research
    (R80—9,
    Ex.
    4 dated June
    11,
    1980 and R80—10,
    Ex.
    9 dated July
    21, 1980).
    As the final post-hearing subrnittals
    were not filed with
    the
    Board until October 10,
    1980,
    it became apparent that there
    was
    insufficient time remaining before the expiration of
    the
    exemption
    on January
    1,
    1981 for the Board to initiate and have completed
    the
    90 day, two—step notice procedures required under the provisions
    of the Illinois Administrative Procedures Act
    (APA).
    Accordingly,
    after its review of the hearing transcripts and exhibits,
    on
    December
    4,
    1980 the Board chose
    to exercise its emergency rule-
    making powers under the Environmental Protection Act
    (Act)
    as well
    as the APA to extend the Rule 209(f)
    exemption as
    an emergency
    rule effective through May
    31,
    1981
    (the maximum period allowable
    by the APA).
    On the same date however, the Board authorized
    publication of the APA first notice of a modified version of
    the
    Agency’s interim sound limitation proposal.
    Both the emergency
    exemption rule and the first notice of the proposed interim sound
    limitation rules appeared
    in the Illinois Register,
    Vol.
    5, January
    2,
    1981,
    at respectively pp.
    266—269, and pp.
    5—11 as well
    as in
    Environmental Register
    #229,
    December 18,
    1980.
    The Board decided
    to extend
    the exemption on an emergency basis
    (thereby maintaining
    the status quo)
    “to insure that the quarrying industry has ample
    time to determine first, whether
    its blasting activities are cur-
    rently
    in compliance with the proposed limits,
    and secondly, how
    and when compliance can be achieved so that any necessary petitions
    for variance can be timely filed.”
    R80—9,
    10,
    (Emergency) Order
    of December
    4,
    1980.
    42—80

    3
    Second notice of the proposed rules, amended in response
    to public comments received during the first notice period, was
    authorized by the Board by its Order of April
    2,
    1981.
    Other
    amendments were made during the second notice period in response
    to comments made by the Joint Committee on Administrative
    1~ules
    (JCAR).
    The
    Technical
    Record
    The record in the R76—16 proceeding was incorporated into
    this record
    (R.
    7).
    To the extent that technical evidence
    presented in this proceeding is cumulative to earlier evidence
    discussed
    in the Board’s R76—16 Opinion,
    it will not be
    discussed
    in detail here.
    Both the Agency and the Task Force agree that considerable
    progress has been made in efforts to
    develop a better understanding
    of the human and structural response to explosive blasting, and
    to develop blasting technologies which will minimize that response
    (see R76—16 Opinion,
    p.
    3,
    R.
    26—27).
    While the coal mining and
    quarry industries had already been voluntarily seeking to reduce
    noise levels,
    the federal Office of Surface Mining Reclamation and
    Enforcement
    (OSMRE)
    promulgated regulations applicable only
    to the
    surface coal mining industry which were designed to minimize the
    adverse effect of its blasting activities on building structures,
    30 CFR §816.64 and §816.65,
    44 Federal Register 15404—405, March
    13,
    1979.
    The Illinois Department ot Mines and Minerals
    (IDMM)
    has adopted identical regulations,
    and is funded to enforce the
    federal regulations, §1816.64 and §1816.65,
    4 Illinois Register
    236—241, September 12,
    1980.
    The numerical limits contained in
    these regulations are to be measured using the C—weighted,
    slow
    response sound descriptor advocated
    in R76~16
    (see Opinion,
    p.
    2—3),
    as well as by measuring for
    sound pressure
    level peaks.
    As a result of industries’
    voluntary and enforced control
    activities,
    the number of complaints concerning blasting noise
    annoyance received by both industry and the Agency has diminished
    since the completion of the R76-16 hearings
    (R.
    15,
    57—60).
    In
    the hearings in this proceeding and
    in R76—16,
    the Agency and the
    Task Force agreed that a C—weiqhted
    s1o~,z response measurement
    is
    a better descriptor for response
    to blast noise than is the A—
    weighted fast response measurement of
    current
    Rule
    206
    (e.g.
    R.
    108—124,
    276—313).
    There
    was
    no
    testimony
    or
    comment
    suggesting
    that
    compliance
    with
    the
    Rule
    206
    sound
    limits
    is
    any
    more
    technically feasible currently
    than
    it
    was
    in
    1973.
    The Agency and the Task Force agree that the OSMRE based
    Agency proposed sound
    limits “are reasonably related to building
    structure damage criteria”
    (R.
    15).
    The Agency believes that
    compliance with these limits is technically feasible,
    through use
    of delay
    intervals, reduced charges, and proper stemming procedures
    (R.
    128).
    The Task Force stated that “from a practical viewpoint”
    it
    “could
    accept”
    the
    Agency’s
    interim
    regulations
    based
    on
    OSMRE
    4 2—81

    4
    limits
    (e.g.
    R.
    220),
    Testimony concerning C-slow
    blast data
    gathered by the
    Illinois Coal Association supports these technical
    feasibility assessments:
    less than 5
    of 594 data
    points measured
    under various blast conditions
    exceeded the suggested 109 dB C—slow
    limit
    (R.
    251—255,
    Ex.
    5,
    R80—9,
    10),
    The ultimate issue
    at hearing, therefore,
    became a matter
    of
    whether the Board
    should adopt any sound limitations
    pending the
    completion of the
    USBM “Human Response” study,
    or
    whether the
    Board should extend the previous Rule 209(f) exemption.
    As
    discussed in the
    R76—16 proceeding,
    and reiterated here,
    blasting
    activities produce
    both air—borne noise and ground—borne vibration.
    Due to the lack of necessary human response data,
    it “is difficult,
    if not impossible,
    to determine which effect
    (air or ground) was
    principally responsible
    for
    a
    complaint” about annoyance from
    blast activities
    (R,
    15),
    The Task Force accordingly stated that
    after receipt of results of
    the
    tJSBM
    research as well as on—goinci
    research
    by
    industry
    itself,
    “it
    may be that when
    the Task Force
    is
    ready
    to
    make
    its final recommendations, they may go beyond
    just
    the
    question
    of noise and respond to
    the entire
    problem,
    which
    includes,
    also,
    ground
    vibrations and where
    those
    standards
    would
    be”
    (R.
    34),
    In
    short, it is
    the position of the
    Task
    Force
    that
    no
    regulations
    should be issued
    by the Board until
    such
    time
    as
    the
    data
    exists
    to
    develop comprehensive
    and final regulations
    which
    will
    deal
    with both human and structural response to blast
    noise.
    It
    is
    the
    Agency’s
    position that a regulatory
    first step
    should be taken pending
    completion of the necessary research,
    as
    it is agreed
    that the OSMRE noise limits “are reasonably related
    to building
    structure damage criteria”
    (R,
    15),
    and
    it is reason-
    able to
    assume
    that final noise limits based upon human response
    criteria
    would
    be
    lower, that
    is,
    more restrictive
    (R,
    30,
    167).
    While it agrees
    with the Agency that the OSMRE—based
    limitations are
    reasonable,
    the Department of Mines and Minerals
    favored
    continuation of the exemption for the coal mining indusfry
    which is
    already
    subject to the OSMRE regulations as adopted
    and
    enforced in
    Illinois by IDMM,
    It has stated that:
    “applying
    Rule 210 to coal mines will result
    in
    1)
    an
    unwarranted
    burden on the taxpayers of the state
    due
    to duplication of
    effort and enforcement of largely
    identical
    rules by two different state agencies;
    and
    2) confusion
    in
    enforcement and compliance
    as a result
    of those differences
    that do exist between the PCB
    Rule 210 and the
    Department’s rules and regulations.”
    (Public Comment
    3,
    and R.
    211—13).
    This modified exemption
    approach was also suggested by
    the Amax
    Coal Company
    (P.C.
    4),
    42—82

    5
    Economic Effects
    As in R76—16,
    the Illinois Institute of Natural Resources
    (IINR)
    determined that
    it is technically infeasible
    to do an
    economic impact study
    of either proposal at this time, due to lack
    of necessary research.
    Some cost information was however
    developed at hearing held August 12-13 and September 24,
    1980,
    primarily relating to the Agency’s R80-10 proposal.
    These
    proposed rules were intended to provide relief from the general
    sound limitations of Rule 206, which cannot be complied with by
    either the coal mining or quarrying industries.
    In the broadest
    sense then, viewing
    Rule 210 as the only alternative to Rule 206,
    Rule 210 would represent an economic savings for both industries.
    However, both industries have been exempt from Rule 206 since
    1973.
    Passage of Rule 210 will impose no additional costs on the
    coal mining industry, which is
    already required to comply with
    these sound limits pursuant to
    the aforementioned federal and
    state mining regulations.
    The
    quarry
    industry
    is
    not
    federally
    regulated.
    However, at
    hearing,
    no
    objection
    was
    made
    by
    this
    industry to
    these
    Rule
    210
    limitations.
    Arvid
    Tienson
    of
    Material
    Services and Chairman
    of
    the
    Task
    Force
    explained
    that
    the quarry industry had already
    taken
    steps
    to
    quiet
    its
    blasts
    to reduce
    citizens
    complaints.
    The
    quarry
    industry
    Task
    Force
    members
    have stated
    in
    writing
    that
    they
    are “...willing to accept the OSMRE
    limits on an interim basis...”
    (Interim Statement,
    p.
    9, May 15,
    1980),
    The Board therefore
    assumes
    there
    will
    be
    little
    or no economic impact on the
    quarry
    industry.
    The
    effect
    on
    the Agency’s
    budget is anticipated
    to be
    minimal.
    Agency
    testimony was that it is currently investigating
    complaints
    against
    quarry cases,
    and so envisions no
    extra costs
    in
    that
    respect.
    As to coal
    mining,
    it
    was
    pointed out
    that
    the
    A?ency
    “.
    .
    .might
    be
    doin9
    some monitoring which
    the Department
    of
    Mines
    and
    Minerals
    is
    doing.
    Well, those costs should
    balance
    out
    because
    if
    one
    group
    is
    making
    the measurements,
    another group
    wouldn’t
    have
    to”
    (R.
    183—184),
    These
    regulations
    impose no duty or additional
    responsibility
    on
    the
    Department
    of
    Mines and Minerals, but coordination
    of
    monitoring
    with
    IEPA
    may result
    in cost savings to that Department:.
    The
    Rules
    As
    Adopted
    Prior
    to
    a
    discussion
    of the specific rules
    as
    adopted,
    some
    general
    remarks
    should be made.
    The Board adopted
    the
    substance
    of the Agency’s proposals, with some editorial changes,
    as
    it
    has
    been convinced that the Agency’s proposal
    is in fact
    a technologi-
    cally feasible and economically reasonable first step in providing
    relief from explosive blasting noise.
    To continue an eight year
    long
    exemption pending receipt of federal research, completion of
    42—83

    6
    which has already been once delayed, would be
    in dereliction of the
    Board’s
    responsibility under Section 25 of the Act to “prescribe
    for
    each
    noise
    source
    category
    the maximum permissible limits on
    such noise emissions.
    Rule 101 Definitions
    While these definitions are in the main self explanatory,
    it
    should
    be
    noted
    that
    reference
    has
    been
    made
    to
    the
    currently
    existing
    version
    of
    the
    ANSI
    document
    S1,4-1971--(R1976)--and
    the
    phrase
    “or
    subsequent
    revisions”
    has
    been
    deleted.
    Reference
    to
    a
    specific
    document,
    which
    is
    being
    filed
    with
    the
    Secretary
    of
    State
    for
    greater
    public
    availability,
    will
    insure
    that
    no
    question
    can
    be
    raised
    concerning
    the
    applicable “Specifications
    for Sound
    Level
    Meters”.
    Rule
    208
    Exceptions
    Rule
    209
    Compliance
    Dates
    These
    rules
    have
    not
    been
    modified
    from
    the
    proposed
    version.
    Rule
    208(h)
    refers
    to
    Rule
    210
    as
    establishing
    sound
    limits
    as
    an
    exception
    to
    the
    Rule
    206
    general
    limits.
    The
    Rule
    209(f)
    exemp-
    tion to Rule 206 has been deleted
    in its entirety.
    Rule 210
    Impulsive Sound From Explosive Blasting
    In recognition of the possibility
    of further delay in
    completion
    of
    the
    USBM
    “Human
    Response”
    research,
    and
    the
    resulting
    delay
    in
    initiation
    of
    the
    Board’s
    “second
    step”
    human
    response
    rulemaking,
    the
    termination date the Board proposed to
    include
    in
    these
    “interim”,
    OSMRE—based
    regulations
    has
    been
    deleted.
    The
    Board
    chose
    not
    to
    exempt
    the
    coal
    mining
    industry
    from
    regulation
    under
    the
    Environmental
    Protection
    Act,
    as
    it
    believes
    that
    relief
    to
    the
    public
    from
    the
    effects of blasting noise should
    not
    be
    dependent
    upon
    the
    continuing
    authority
    of
    and
    federal
    support
    for
    the
    Department of Mines and Minerals to administer
    a
    federal
    noise
    control
    program.
    To
    eliminate
    regulatory
    inconsis-
    tency problems for the coal mining industry,
    the Board has amended
    the proposed rules to coincide with IDMM rules
    in all but one
    respect:
    IDMM additionally requires that emergency nighttime
    blasting be done only after
    its specific permission has been
    received.
    The Board again notes that the Task Force intends to propose
    human response related noise limits once federal research into
    human response to blast noise
    is completed.
    If the jurisdiction
    of the Agency
    to monitor explosive blasts from coal mines is
    removed,
    its ability to provide input into the Board’s regulatory
    process may
    be curtailed.
    In addition, while the Board and IDMM
    regulations are now virtually identical, in the future the regu-
    latory response of the Board and OSMRE to the human response data
    or other factors may not be identical.
    This could result
    in
    42—84

    7
    undesireable enforcement gaps.
    On the whole,
    coordination of
    monitoring efforts between the Agency and IDMM appears to the
    Board to be the most efficient and least disruptive approach to
    the dual jurisdiction issue.
    Finally,
    in response to JCAR comments,
    the Board amended
    Rule 210 to provide that sound measurements may be taken from “any
    point of interference with the reasonable use of” receiving Class
    A or B
    land.
    The Board wishes
    to emphasize that this change in
    language is not indicative of a change in past practice in the
    noise area.
    Instead,
    it makes explicit the approach the Board has
    taken in past actions regarding noise regulations.
    I, Christan L. Moffett, Clerk of the Illinois Pollution
    Control Board,
    hereby certify that the above Opinion was adopted
    on the
    /~
    day of ¼1~~
    ,
    1981 by a vote of
    d/~
    Christan
    L.
    Mofé~,~
    Clerk
    Illinois Pollution Control Board
    42—85

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