1. THIS FILING SUBMITTED ON RECYCLED PAPER
      2. MOTION FOR ACCEPTANCE
      3. THIS FILING SUBMITTED ON RECYCLED PAPER
      4. BACKGROUND
      5. GROUNDWATER MODELING
      6. CONCEPTUAL MODEL
      7. WELL I.D. X COORDINATE Y COORDINATE
      8. WELL I.D. X Coordinate Y Coordinate Pumping Rate(m3/s)
      9. RESULTS
      10. REGULATORY DEVELOPMENT
      11. CONCLUSION
  1. CURRICULUM VITAE
  2. RICHARD P. COBB, P.G.
      1. I. Personal
      2. II. Education
      3. III. License
      4. IV. Certifi~ition
      5. V. Summary ofExperience
      6. VIII. Professional Affiliation
      7. IX. Chronological Experience
      8. XI. Honors
      9. Principal Author
      10. Principal Author
      11. Co-Author
      12. Co-Author
      13. Principal Author
      14. F. Groundwater Quality and Hydrogeology
      15. Principal Author
      16. Co-author
      17. G. Groundwater Protection Program Documents
      18. Principal Author
      19. Co-Author
      20. III,— United States National Map Accuracy Standards
      21. EXHIBIT
      22. EXHIBIT
      23. RESOLUTION NO. ~
      24. conditions; and
      25. Section 1. The foregoing recitals are hereby adopted and found to be correct.
      26. IEPA to increase the setback zones from the Existing Wells.
      27. ATTESTS
      28. Heights, Tazewell County, Illinois
      29. EXHIBIT
      30. Prepared in cooperation with the U.S. Geological Survey.
      31. 5028 0 82550280 06457 KELLEY’S AUTO SALES AUTO REPAIR 1100
      32. 1200750
      33. This~\ dayof~j4N\cLr~7) ,2005.

IN THE MATTER OF:
MAXIMUM SETBACK ZONES
(35
Iii.
Adm. Code 618)
R05-
9
(Rulemaking Public Water Supplies)
NOTICE OF FILiNG
Dorothy Gunn, Clerk
Illinois Pollution
Control Board
James R. Thompson Center
100
W. Randolph, Suite 11-500
Chicago, Illinois
60601
General Counsel
Illinois Department ofNatural Resources
One Natural Resources Way
Springfield, Illinois 62702-1271
Service List
Matthew Dunn,
Esq.
Environmental Bureau Chief
Office ofthe Attorney General
James R. Thompson Center
100 W. Randolph,
12th
Floor
Chicago, Illinois 60601
Richard R. McGill, Jr.
Ill. Pollution Control Board
James R. Thompson Center
100 W. Randolph, Suite 11-500
Chicago, Illinois 60601
PLEASE TAKE NOTICE that I have today filed with the Office ofthe Clerk ofthe Illinois
Pollution
Control
Board
the
written
testimony
of Richard P.
Cobb,
P.G.,
a
copy of which
is
ILLINOIS ENVRIONMENTAL
PROTECTION AGENCY
B~f)df4’d(/V~2I
mberly A. Geving
Assistant
Counsel
Division ofLegal Counsel
Date:
January 21, 2005
1021
North Grand Ave. East
P.O. Box
19276
Springfield, Illinois 62794-9276
(217)
782-5544
BEFORE THE ILLNOIS POLLUTION CONTROL BOARD
)
)
)
)
)
)
)
CLE~’g
OF~fCE
JAN
2
4
20fl5
STATE OF
lLL~~~i
~
Pollution Controi bo~-~
herewith served upon you.
THIS FILING SUBMITTED ON RECYCLED PAPER

BEFORE THE ILLNOIS POLLUTION CONTROL BOARD
IN
THE
MATTER OF:
)
)
MAXIMUM
SETBACK ZONES
)
R05- 9
(35
Ill. Adm.
Code 618)
)
(Rulemaking Public Water Supplies)
)
)
)
MOTION FOR ACCEPTANCE
NOW COMES the Illinois
Environmental
Protection Agency (“Illinois EPA”) and,
pursuant to
35 Ill. Adm. Code 102.424, moves the Illinois Pollution Control Board (“Board”) to
accept the attached written testimony ofRichard P. Cobb, P.G. for the above-referenced matter.
Respectfully submitted,
ILLINOIS ENVIRONMENTAL
PROTECTION AGENCY
By:
____________
~mberly
Al
Geving
Assistant Counsel
Division ofLegal Counsel
Date:
January 21,
2005
1021
North Grand Ave. East
P.O. Box
19276
Springfield, Illinois 62794-9276
(217)782-5544
THIS FILING SUBMITTED
ON RECYCLED PAPER
2

CLE~k’~~~P
TESTIMONY OF
RICHARD
P.COBB, P.G.
iAN 24
2Q05
QUALIFICATIONS/INTRODUCTION
STATE OF ILU
Pollution Controj
bo~~c~
My name is Richard P.
Cobb and I am the Deputy Manager ofthe Division ofPublic Water
Supplies ofthe Illinois Environmental Protection Agency’s (Illinois EPA) Bureau ofWater.
For
further detail on my qualifications I have enclosed a copy ofmy Curriculum Vitae in Exhibit I.
The references that I have quoted or used in my testimony are detailed in Exhibit II. This
testimony, the Statement ofReasons, and exhibits included with this testimony describe the basis
for the proposal ofa maximum setback zone for the Marquette Heights community water supply
(CWS).
BACKGROUND
In
September
1987,
the
Illinois
General
Assembly
enacted
the
Illinois
Groundwater
Protection
Act
(IGPA) (415 ILCS
55/1).
The IGPA was part ofPublic Act
85-863,
which created
the
IGPA and
amended
portions
of the Environmental Protection
Act
(Act)
dealing
with
public
water supplies.
The IGPA established
minimum setback zones of 200
or 400
feet,
under Section
14.2 ofthe Act
(415 ILCS
5/14.2),
for CWS
wells.
New potential primary sources, new potential
routes,
and new potential secondary sources, as defined in Sections
3.345,
3.350
and
3.355
ofthe
Act
(415
ILCS
5/
3.345,
3.350
and
3.355),
respectively,
are prohibited
within these
areas.
The
Illinois General Assembly provided additional protection for CWS wells under Section
14.3 ofthe
Act (415 ILCS
5/14.3), by authorizing
either the county or municipality served by a
CWS well, or
the Board,
to
establish
a
maximum setback zone
of up
to
1,000
feet from
the
weiThead.
Under
Section
14.3(e)
of the Act
(415 ILCS
5/14.3),
no
new potential
primary sources can be
located
within a maximum setback zone.
Section
14.3
of the Act
provides
the
authority
to
establish
maximum, setback
zones
to
counties and municipalities served by CWS wells, and to the Board.
However, the illinois EPA is
required to
approve the
adequacy of a demonstration that the “lateral
area of influence”
is
larger
than the mimmum setback
zone before
adoption of maximum
setback zones
The Illinois
EPA

was
required
to
develop
procedures
to
make
such
determinations
using
pumping
tests
and
estimation
procedures.
The Illinois
EPA developed,
and the Joint
Committee’ on Administrative
Rules
adopted,
35
Ill.
Adm.
Code
671,
Maximum
Setback
Zone
Rules
for Community
Water
Supply
Wells, which
details
the technical
criteria
for
determining
the
lateral
area of influence
(LAJ).
Subpart
B of Part
671
sets
forth
the procedures for determining the LAI ofwells
under
normal operating conditions.
DETERMINATION
OF THE
LATERAL AREA
OF
INFLUENCE
Illinois
EPA
contracted
with
RAPPS
Engineering
and
Applied
Science
(RAPPS)
to
develop a regional groundwater flow model for the Creve Coeur to
Pekin area, and to subsequently
delineate
the
wellhead
protection
area
(WHPA)
for the
Marquette
Heights
wells.
A
“WHPA”
means
the
area
delineated
for
CWS
wells
pursuant
to
Sections
1428
and/or
1453
of the
Safe
Drinking
Water
Act
(SDWA)
(415
ILCS
5/17.5).
This
more
sophisticated approach allowed
for
the
determination
of
an
irregular
shaped
maximum
setback
zone,
up
to
1,000
feet,
for
the
respective wellheads by taking into account the regional groundwater gradient in combination with
the
LAI,
and
other pumping
stresses
in
the area.
The
Illinois
EPA reviewed
and
approved the
technical adequacy ofthis model.
The
Marquette
Heights
proposed
maximum
setback
zone
is
based
on
a
sophisticated
technique for determining the LAI pursuant to 35
Ill.
Adm.
Code
671.201(g),
Illinois’ Wellhead
Protection
Program
approved
by
United
States
Environmental
Protection
Agency
(U.S.
EPA)
pursuant
to
§
1428 of the SDWA
(Illinois EPA,
1992), and Guidance for conducting groundwater
protection needs assessments (Cobb,
et al.,
1995).
In addition,
the
Guidelinesfor the Delineation
of Welihead Protection Areas
(U.S.
EPA,
1987) and
Model Assessmentfor Delineating
WHPAs
(U.S.
EPA,
1988) were
considered.
Furthermore, modeling was performed to be
consistent
with
approaches recommended in
Applied Groundwater Modeling Simulation of Flow and Advective
Transport (Anderson and Woessner,
1992).
4

The
Marquette
Heights
CWS
wells
are
located
in
the
Central
Priority
Groundwater
Protection
Planning
Region established
pursuant
to
Section
17.2 of the Act
(415
ILCS
5/17.2).
The regional
priority
planning
areas
were
designated
in
part based
on
the Potential for Aquifer
Recharge Area Map of Illinois
developed by the Department of Natural Resources
(DNR).
This
mapping was completed and published by DNR
in
1990.
In
1991, the
first two
priority regions
were
established
including
the
Central
Region.
The
Central
Priority
Groundwater
Protection
Planning Region is
composed
of Peoria,
Tazewell,
Woodford,
and
Mason
Counties.
Figure
1
illustrates the
location of the
Marquette
Heights
CWS
WHPA
in
relation
to
the
Potential
for
Aquifer
Recharge
Map
of
Illinois.
Thus,
the
Marquette
Heights
WIPA
is
located
in
a
hydrogeologic
setting
with
a
high
potential
for
aquifer
recharge,
and
is,
therefore,
a
highly
vulnerable source ofClass
I: Potable Resource Groundwater.
5

Figure 1. Potential for Aquifer Recharge Map
for Marquette Heights WHPA.
6
L~~d’
FotanhI
For
Aquifer Reci~rge
s~
MgI war
,~_,• ~
L~or
~
b
P~aft
Ife~
11e3J
PFteclbI
Apa
~
~MCh

GROUNDWATER MODELING
The basic assumption ofgroundwater modeling is Darcy’s Law, which states that the flow ofwater
through a porous material is proportional to the gradient ofthe hydraulic head.
The hydraulic head
is the
level to
which water would rise in a non-pumpingwell.
Darcy’s Law,
combined with the
water balance equation (inflow
outflow
=
change in storage), yields a governing equation that
must be satisfied1 by the hydraulic head everywhere within the water-saturated porous medium.
Once the hydraulic head values throughout the system are known, flowlines and capture zones for
__________________________________________________
water flowing through the
Total hydraulic head
canbe described by the
following where:
system can be delineated.
h
=
total hydraulic head
(meters (m));
z
=
a point that is at an elevation above a datum (m);
Except for a few very simple
P
=
fluid pressure (newton-meters2 (NIM2));
g
=
the acceleration due to gravity constant
@
9.8 meters per second2
hydrogeologic systems,
(m/sec2)~
p
=
density or mass per
unit
volume (kilograms per meter3 (kg/m3)); and
exact solutions
to
boundary
The velocity of groundwater flowing in a porous n~edia
under natural
value
problems cannot be
hydraulic gradients is relatively very low (e.g.,
10
rn/sec or 30 rn/year,
which is typical for groundwater). Thus, velocity can be ignored
and
h is
found.
However,
numerical
given by the
formula h
z
+
P/pg.
Therefore,
total “hydraulic head”
means the sum of
the elevation head,
the pressure head, and the
velocity
modeling techniques such as
head in an aquifer (Fetter, 94).
____________________________________________________________
the finite difference method
can be used to find approximate solutions.
In the finite difference method, the model domain is
separated into an assemblage ofcells.
The solution consists of single values ofhydraulic head that
best characterize each cell.
The modeling grid and subsequent recharge area delineations for the community water
supply wells were based on digitizing the well locations offUnited States Geological Survey
(USGS) 1:24,000 or
1
inch equals 2,000 feet topographic’ quadrangle maps.
Thus, the modeling
grid was tied to real world coordinates.
The Illinois EPA uses the Lambert Conformal Conic
system ofcoordinates. The wells were located and mapped in the field using 1-inch equals 400-
foot aerial photographic maps.
The aerial photos were used to locate the wells on the USGS maps.
Thus, the locations ofthe wells
and the associated recharge area delineations have a locational
The solution to this equation satisfies the governing equation not only within the model domain but
also along
the
various boundaries of the model
(Bear, 1972).
7

accuracy that complies with the Unites States National Map Accuracy Standards, as described in
Exhibit III.
A
conceptual
model
of the
groundwater flow
system
based
on
data
available
from
the
literature,
or from well records,
was created for the
study area.
This
model
contains information
on
hydrostratigraphic units
and
boundary
conditions,
as well as
acceptable ranges for hydraulic
conductivity and recharge.
The
end members for the range ofhydraulic
conductivity values were
based
on
field-measurements from
an
area with
geologic materials similar to
those
found in
the
study
area.
The
end
members
for
the range
of recharge
values
were
based
on
an
analysis
of
baseflow in streams or from previous groundwater flow models in
similar landscapes.
A steady-state finite difference groundwater flow model was created by RAPPS from the
conceptual model with MODFLOW, the USGS modular three-dimensional finite-difference
groundwater flow modeling program (McDonald and Harbaugh,
1988).
MODFLOW yields the
distribution ofhydraulic head in the flow system.
The numerical, block-centered, three-
dimensional finite difference approach is utilized in MODFLOW to approximate a solution to the
“governing equation” ofgroundwater flow as a boundary value problem.
Once the groundwater
head elevations are simulated and calibrated according to observed mass water level
measurements, pumping stresses
associated with community water supply wells were induced in
the model.
Particles
were
reverse tracked
from
each production well for a
period of five
years with
MODPATH,
the
USGS
particle-tracking program
(Pollock,
1989).
The
trace
of the
particles
approximates the
capture
zone for the well.
A projection of the’ capture zone onto
a horizontal
plane defines the WHPA.
The
finite difference
grid, which
represents the bounded’ area of study,
was created using Graphic
Groundwater (Esling, 2000), a pre-
and post-processor to MODFLOW
and MODPATH
(RAPPS, 2003).
8

Calibration
The purpose
of calibration
is
to
match
heads
simulated by
a
numeric
model
to
those
actually observed
in the field.
Calibration
is
accomplished by adjusting input parameters such as
hydraulic
conductivity or recharge or by modifying boundary
conditions.
In a humid temperate
climate, like that ofIllinois, the water table is oflen a subdued reflection ofthe surface topography.
The model
developed by RAPPS,
reviewed
and
approved by Illinois
EPA, was
calibrated
to
the
regional topography in the project area.
Calibration
was
done
systematically
by
bracketing
reasonable
ranges
in
the
ratio
of
recharge to
hydraulic
conductivity (RIK).
The ratio ofthe
low recharge
end member for a region
to the highest hydraulic conductivity end member yields the lowest value ofR/K.
The high end of
the range, on the otherhand,
is determined through simulations.
The value ofR/K
is
adjusted until
the hydraulic head is at or immediately below the land surface in the study area.
Any larger value
creates the unrealistic situation where hydraulic heads rise above the land surface.
The actual RIK
value for the
study
area must fall
somewhere
between the low
and high
R/K
values
(RAPPS,
2003).
Sensitivity Analysis
In a normal sensitivity
analysis, the modeler examines the effect that a change in
an input
parameter has
on
the distribution of hydraulic
head.
However,
for this purpose,
the
shape
and’
extent
of the
capture
zone
is
a
much more
important
consideration.
Thus,
the
values
of the
different
parameters
were
selected
from
the same range
of plausible
values
determined
for the
study
area during
development of the
conceptual
model.
The different
recharge
and
hydraulic
conductivity end members were combined to produce a matrix of RIK values, shown below:
9

Initially,
each RIK value in
the matrix
was examined
to
make sure that
it fell within the
range of acceptable R/K values determined during calibration.
If one or more ofthe R/K
values
fell
outside
the
acceptable
range,
the
hydraulic
conductivity
or
recharge
end
members
were
adjusted.
The ultimate objective was a matrix ofR/K values that produced simulations that bound
all possible capture zones forthe study area.
The best estimate for the capture zone is a simulation
based
on some
combination ofrecharge and hydraulic
conductivity between the end members.
A
high level
of confidence is
associated with the WHPA if the four RIK values
in
the matrix
yield
capture zones with
similar shape and
extent.
Distinctly different bounding
capture
zones tend to
suggest less
confidence in the modeling results (RAPPS, 2003).
Geographic Setting
CONCEPTUAL MODEL
Marquette Heights is located in Tazewell County in central Illinois approximately
8
kilometers
south ofPeoria in
Section
13, Township
25 North, Range
5
West and Section
18,
Township 25 North, Range 4 West.
The Marquette Heights wells are located on the west side of
town on the floodplain ofthe Illinois River approximately 400 meters south and 450 meters east of
the northwest corner ofSection
13, Township 25 North, and Range
5
West.
The land surface
elevation at the wells is approximately
142 meters above sea leyel.
10

Figure
2. USGS
topographic quadrangle map of the‘Marquette Heights WHPA (Section
13, Township 25
North, Range
5
West and
Section 18, Township 25 North,
Range 4
West).
11

Physiography
Illinois
is
situated in the south-central part of the great Central
Lowland Province near the
confluence oftwo
major lines of drainage,
the Mississippi and
Ohio Rivers,
making it the lowest
of the north-central states
with a mean
elevation of about
183
meters
above sea
level
and
a total
relief of only 300 meters (Leighton et al., 1948).
Marquette Heights
lies in the extreme northern
portion of the Springfield
Plain of the Till
Plains
Section,
the
largest physiographic
division
in
Illinois,
covering
approximately
four-fifths
of the
state,
characterized by
broad
till
plains
in
an
uneroded or youthful
stage of erosion.
The
Springfield
Plain
includes the
level
portion of the
Illinoian drift
sheet in central and south-central Illinois,
distinguished by its
flatness and shallowly
entrenched drainage.
Bedrock Geology
The Quaternarydeposits in the Illinois Valley south ofPeoria are underlain by rocks
belonging to the Pennsylvanian Carbondale Formation (Willman et al., 1967).
Detailed
descriptions ofthe Pennsylvanian strata ofIllinois
were published by Willman
et al.
(1975).
The
following geologic descriptions are based largely on this report.
The Quaternary deposits
on the uplands south ofPeoria and
east of the Illinois
Valley are
underlain
by
rocks
belonging
to
the Pennsylvanian Modesto ,Formation
(Wiliman
et al.,
1967).
Well logs indicate that the bedrock beneath the Quaternary deposits in the Marquette
Heights area,
both in the Illinois Valley and on the adjacent uplands, is mainly shale.
Quaternary Geology
The Quaternary deposits in the Illinois Valley south ofPeoria consist ofglacial outwash
deposits belonging to
the Banner Formation and the Henry Formation overlain by channel and.
floodplain deposits ofthe Cahokia Formation (Berg and Kempton,
1987; Horberg,
1950;
-
Lineback,
1979; Marino and Schicht,
1969).
The Sa,nkoty
Sand Member ofthe BannerFormation
rests directly on bedrock and fills the deepest part ofthe Illinois Valley in the study area.
Its
12

thickness varies greatly from about 15
to 45 meters due to erosion and irregularities on the bedrock
surface (Burch and Kelly,
1993).
The SankotySand is the most extensive aquifer in the region and
is characterized by coarse- to medium-grained sand with an abundance ofquartz grains, ofwhich
25 percent ormore are pink, rounded,
and polished (Horberg, 1950).
Gravel is present in some
beds but is not common (Wiliman and Frye,
1970).
The upper part ofthe Sanicoty Sand hasbeen eroded in the Illinois Valley south ofPeoria
and is buriedby glacial outwash deposits belonging to the Henry Formation.
The outwash
constituting the Henry Formation consists ofsorted and
stratified water-laid material that is
dominantly sand and gravel.
These outwash sediments were depositedby debris-laden meltwaters
flowing away from the ice fronts during both the advances and retreats ofglaciers during the
Wisconsinan Age (Willman and Frye, 1970) and were previously classified with the Mackinaw
Member, sand and gravel outwash deposited as valley trains.
Well logs indicate that the combined
thickness ofthe Sankoty Sand and the Henry Formation ranges from approximately 23 to 45
meters in the study area.
The Cahokia Formation consists of deposits in the floodplains and channels ofmodern
rivers and streams,
and is comprised ofmostly poorly sorted sand, silt, and claywith wood and
shell fragments, and local deposits ofsandy gravel (Lineback, 1979).
The upper part consists of
overbank silts and clays, while the coarser-textured lower portion is mainly sandy channel
deposits.
The Cahokia is present along all Illinois streams, although locally absent where active
stream erosion is occurring.
In major valleys, it commonly overlies the well-sorted deposits ofthe
Henry Formation (Willman and Frye, 1970).
The Cahokia Formation is generally greater than 6
meters thick in the study area (Berg and Kempton, 1987).
Public Water Supply
Marquette Heights currently obtains its water supply from two wells located on the west
side of town on the Illinois River floodplain.
Wells #4 (50280) and #5 (50281)
are
the current
production wells
(Figure 2).
Both wells are screened in the Sankoty Sand and/or the Henry
Formation.
Well #4 (50280) has a depth of28.96 meters
(95
feet) and is screened from
19.81
13

meters to
28.96 meters.
Well #5 (50281) is 28.65 meters (94 feet) deep and is screened from
19.51
meters to
28.65 meters.
Wells #4 and
#5
have a total annual pumpage of332,262 cubic meters
(87.9 million gallons), correspondingto a steady pumping rate of5.24e-3
cubic meters per second
(83 gpm) for each well.
Lambert coordinates for the wells are listed in Table
1.
Table
1:
Lambert Coordinates of the Marquette Heights Production Wells
WELL I.D.
X COORDINATE
Y COORDINATE
Well #4 (EPA#50280)
2966469.25
.
2764122.75
Well#5(EPA#50281)
2966361.75
2764137.50
NUMERICAL
MODEL
Model Design
The
conceptual model of the area was simplified into a one-layer numerical model.
The
model
grid contains 290 columns and
474
rows with
spacing of 15
meters around
the production
wells.
Beyond
the immediate vicinity of the wells,
the grid
spacing
is
gradually increased
by
a
factor of 1.16
to
a maximum of 150 meters, which is maintained out to the boundaries ofthe model
(Figure 3).
The coarse lower portion ofthe Cahokia Formation, the sands and gravels ofthe Henry
Formation,
and
the Sankoty sand constitute a
single hydrostratigraphic unit
and
are modeled
as a
single
layer.
Logs
of the
Marquette
Height’s
wells
and
other nearby wells
indicate
that
these
coarse-grained deposits have a thickness of approximately 23
meters immediately
south of Peoria.
In
the
southern
part
of
the
study
area,
south
of North
Pekin,
their
thickness
increases
to
a
maximum of approximately 45 meters due to the presence of an alluvial
terrace above the Illinois
River floodplain.
The fine-grained
upper part of the Cahokia Formation overlying
the sand and
gravel deposits serves as an upper confining layer and was not simulated (RAPPS, 2003).
14

Marquette Heights
Wells
Constant Head Cells
1500
-~
11101111k
_~~~b—;;
~
...•i.,iuiuii’
.m..uuluIIiiI:
.....IIIIIliI:
•~•uuuiiiuiii
••••uuiiiiii
•u••uuuiiuiii
•u••iiiiiiiii
•uu•..iiiiii
.I.IuIIIIlIIi
•••iuiiiiiii
“iIIH~P~~
3000
4500 Meters
Figure
3. Variable finite-difference
grid showing
the boundary conditions used in
delineating
the WHPA for Marquette Heights,
Illinois.

The
Illinois
River,
which penetrates
the upper
confining layer and
is
in
direct
contact
with
the
aquifer below, forms a constant head boundary along the western edge of the model.
Head values
for constant head cells were
determined through
linear interpolation ofthe gradient of the Illinois
River.
Stage
data for the interpolation
were
obtained
from
contour lines
crossing the river
on
1:24,000 scale topographic maps and pool elevations
on the upstream and downstream sides ofthe
Peoria lock and dam.
Smaller streams like Lost Creek were not simulated since they are not deep
enough to
fully penetrate the fine-grained upper part of the Cahokia Formation.
Worley Lake and
Pekin Lake,
located on the Illinois
River floodplain just north of Pekin,
have thick
clay beds and’
are probably not
in direct contact with
the aquifer.
They were
not
simulated in order to
produce
more
conservative results
(not
simulating
the
lakes
prevents
them
from
acting
as
sources
that
reduce the size of the capture zones) (RAPPS, 2003).
Where unconsolidated aquifer materials are in
direct contact with bedrock, both at the base
ofthe aquifer and along the model’s eastern edge, a no-flow boundary is assumed.
Although some
exchange ofgroundwater between these units is possible, the unconsolidated deposits have a ,much
higher
hydraulic
conductivity
than the predominantly shale bedrock and
flow between
the
two
units
likely
constitutes
only
a
small portion of the overall
hydrologic budget
for the area.
The
southern
boundary of the model
is
a
no-flow boundary
located
at
a sufficient
distance
from the
production wells
so that their cones of depression
do not
extend
out to
these boundaries
(RAPPS,
2003).
-
-
The wells of Creve Coeur, Pekin, North Pekin, and the Groveland Township Water District~
are
located within
the modeled area
and
have
been included
in
the model
to
account for
their
significant pumpage
in
the region.
Eight
remediation wells
and
7 collector wells operated by BP
Amoco
as part
of
a subsurface contamination clean-up and
recovery system have been included in
the model for the same reason.
These wells are located just south ofthe Creve Coeur wells.
16

Table 2:
Lambert Coordinates and Pumping Rates
All Additional Wells
WELL
I.D.
X Coordinate
Y Coordinate
Pumping
Rate(m3Is)
Creve Coeur (#503 82)
2967459.00
1
2967459.00
7.65e-3
Creve Coeur (#50383)
j
2967302.00
2768305.00
l.39e-2
Creve Coeur (#50384)
2967382.00
2768378.25
1.39e-2
North Pekin(#502l0)
2966114.00
2764259.50
3.19e-3
North Pekin
(
#50211)
2966346.75
2759770.00
3.l9e-3
Groveland
TWP (#50075)
2964975.75
,
2757126.50
2.72e-3
L
Groveland TWP (#50076)
2964971.00
2757368.00
2.72e-3
Pekin(#50056)
2958573.00
2744193.50
4.29e-2
Pekin(#50057)
2957913.25
1
2744007.75
4.23e-2
Pekin (#50058)
2958378.25
2744190.75
,
4.23e-2
Pekin(#50060)
2962602.50
2746887.75
3.38e-2
Pekin(#50061)
2962694.75
2746881.25
4.23e-2
Pekin(#50062)
2957061.50
2740658.75
4.23e-2
Pekin
(#50063)
1
2962168.75
2755077.75
1
3.62e-2
AMOCO (RW1)
AMOCO (RW2)
2966778.49
2966682.06
1
2766233.33
2766115.47
l.05e-3
l.05e-3
AMOCO (RW3)
2966649.91
2765933.33
l.05e-3
AMOCO (RW4)
J
2966821.34
2765954.76
l.05e-3
J
AMOCO (RW5)
2966949.91
2765922.61
1.05e-3
.
AMOCO (RW6)
2967078.49
2765911.9
1.05e-3
AMOCO (RW7)
2967228.49
2765901.19
1.05e-3
17

Table
2 (Continued):
Lambert Coordinates and Pumping Rates
All Additional Wells
WELL I.D.
X Coordinate
Y Coordinate
Pumping Rate(m3/s)
AMOCO (RW8)
2967378.49
2765890.47
1.05e-3
AMOCO (CW1)
2965921.34
2764926.19
2.le-3
AMOCO (CW2)
3966360.36
2764936.9
2.le-3
AMOCO (CW3)
2966167.77
2765204.67
2.le-3
AMOCO (CW4)
2966339.2
2765483.33
2.le-3
AMOCO (CW5)
2966585.03
2765419.04
2.le-3
AMOCO (CW6)
2966821.34
1
2765376.19
2.le-3
AMOCO (CW7)
2967035.63
2765344.04
2.le-3
j
Model Parameters
Values for initial head, top and bottom
elevation, hydraulic conductivity, porosity, and
recharge had to
be assigned for every cell in the finite difference
grid.
These values were
determined using data from well logs, topographic maps, pump tests, and published literature
sources (RAPPS, 2003).
Initial Head
-
An
initial head value of 190 meters was
assigned to every cell ‘except
constant head cells.
Steady-state models are self-correcting, hence a uniform initial head
distribution is appropriate.
One hundred ninety meters is the maximum land surface elevation, and
therefore the maximum potential hydraulic head, in the model domain.
Head values for constant
head cells were determined through linear interpolation ofthe gradient ofthe illinois River and
range from 130.96 to
131.06 meters.
Cell Top and Bottom Elevations
The elevation ofthe top ofthe aquifer varies spatially
in the model domain.
Cell top
elevations were therefore varied in order to
simulate aquifer~op
elevations as accurately as possible.
A top elevation of 135 meters was assigned to cells in the
northern part ofthe domain.
Cells in the southern part ofthe domain (south ofNorth Pekin),
18

where the aquifer is thicker due to the presence ofan alluvial terrace above the Illinois River
floodplain, were assigned a top
elevation of 143
meters.
Linear interpolation
was used to
gradually increase top elevations
from 135 to
143 meters between these two areas.
Aquifer bottom
elevations do not vary spatially in the model domain and all cells were assigned a bottom
elevation
of 112 meters.
Hydraulic
Conductivity
-
Hydraulic conductivity
(K)
values for the Sankoty
Sand were
calculated from transmissivity values reported by Visocky and Sanderson (1996) from one 24-hour
and one 7-day aquifer test in the Sankoty Well Field in Peoria, Illinois.
These values range from
5.2e-4
to
7.86e-4
meters/second.
Hydraulic
conductivity values
derived from
pump
tests
on
the
Creve Coeur wells
(located’ approximately
1,300 meters north ofthe Marquette Heights wells)
and
othernearby wells in the modeled area range from 4.53e-4 to 2.19e-3
meters/second.
Because this
range includes the Visocky and Sanderson values and is more conservative (higher K values result
in larger capture
zones), it was used in
the model
instead of the values reported by
Visocky and
H
Sanderson.
Recharge
-
Minimum
and
maximum recharge
rates
were
determined
using
hydrograph
separation
techniques
and
published
literature
values.
To
determine
minimum recharge
using
hydrograph
separation
techniques,
daily
discharge
data
from
Farm
Creek at
East
Peoria
were
analyzed
using
HYSEP
(Sloto
and
Crouse,
1996),
the
U.S.
EPA’s
streamfiow
hydrograph
separation and analysis program.
HYSEP produces an
annual hydrograph of streamfiow for each
year of record analyzed, then estimates base
flow by using
one of three methods (fixed interval,
sliding interval, or local minimum)
to systematically draw connecting lines between the low points
ofthe stream hydrograph.
The sequence ofconnecting lines defines the base
flow component of
the hydrograph.
The estimated base flow is then divided by the area ofthe stream’S drainage basin
or catchment
to
yield an estimate of average recharge.
Using the local minimum method,
annual
estimates
of base
flow
and
recharge
were
determined
for Farm
Creek
at
East Peoria,
then
an
average recharge rate was calculated
from the annual estimates.
This rate, 2.39e-9 meters/second
(2.97 inlyr),
is
considered the minimum rate for the
study area.
An alluvial valley would have
a
higher recharge rate than an upland area in a similar climate.
19

The upper
end member for recharge
was determined from
values repOrted
in the literature
in areas with
similar climate and
geologic
setting (alluvial valley).
Thornthwaite (1964) used his
water balance model
to determine
the quantitative impact of climatic factors
that
determine the
water surplus (recharge) of an
area.
He calculated recharge at the southern tip
ofIllinois
for the
town of Cairo
of 0.274
meters
(10.79 in)
per
year.
Schicht
(1965)
calculated recharge
directly
from precipitation based on flow-net analysis ofpiezometric maps
in the American Bottoms of the
Mississippi
Valley
and
found
a
range
of 0.16
meters/year
to
almost
0.254
meters/year.
A
maximum rate for Marquette
Heights was
determined by rounding the
large values found in
the
literature to a conservative 9.67e-9 meters/second (12 inlyear).
Porosity
-
Sand and gravel deposits can have a porosity ranging from 25-50
(Domenico
and
Schwartz,
1998;
Fetter,
1994;
Morris
and
Johnson,
1967).
Numerous
studies
by
the
Hydrologic Laboratory ofthe U.S. Geological Survey show that
fine gravel deposits typically have
a
porosity
between
25-39
with
an
average
value
around
34
(Morris
and
Johnson,
1967).
Rounding
down to
30
from the average provides a conservative estimate for defining the capture
zone.
Calibration
The low R’K end member was determined by taking the lowest value for recharge (2.39e-9
meters/second)
and
dividing
by
the
largest
value
of
hydraulic
conductivity
(2.1 9e-3
meters/second).
The resultant
RIK value
is
1 .09e-6.
This value represents
an unlikely scenario
because it is based on too low a recharge and too high a hydraulic’ conductivity.
A high RJK value
was then determined by running
several simulations of the model,
gradually
increasing the R/K
value until hydraulic
head intersected the land surface somewhere in
the study
area, or until
the
RIK
value
determined
by
taking
the
highest
value
for
recharge
(9.67e-9
meters/second)
and
dividing by the smallest hydraulic
conductivity value (4.53e-4 meters/second) was reached.
This
RIK value
is
2.13e-5.
Upon
increasing
the recharge
to
the maximum value
and
decreasing
the
hydraulic
conductivity to
the smallest
value the
heads
did
not
reach the
land surface.
The high
R/K end member is therefore 2.13e-5
(RAPPS, 2003).
20

Sensitivity Analysis
Trials were designed to determine what effects varying the RIK value would have on the
capture zone geometry.
The objective was to
vary the hydraulic conductivity and recharge while
remaining in the range ofRIK values determined during calibration.
In a normal sensitivity
analysis, recharge is first set to
th’e minimum rate and hydraulic
conductivity set to the maximum
value, simulating an unrealistically low R/K case.
Recharge is then set to the maximum rate and
hydraulic
conductivity set to the minimum value, simulating an unrealistically high RIK case.
Groundwater conditions in the study area must fall somewhere between these two R/K extremes.
Finally, intermediate trials are run using combinations oflow recharge with low hydraulic
conductivity
and high recharge with high hydraulic conductivity.
The capture zones produced
during these trials are compared, and if all
four are similar in both size and geometry then a high
degree ofconfidence is associated with the resultant WHPA.
Table 3 shows the matrix ofR’K
values for the sensitivity analysis ofthe Marquette Heights model (RAPPS, 2003).
Table 3:
RIK Combinations for the Sensitivity Analysis ofthe Marquette Heights Model
HYDRAULIC
CONDUCT
WITY
-
Low Hydraulic Conductivity
4.53e-4
meters/second
High Hydraulic Conductivity
2.19e-3 meters/second
-
Low Recharge
Intermediate RIK Member
Low 111K End Member
2.39e-9 meters/second
5.28e-6
1.09e-6
c)
~
High Recharge
High
111K End Member
Intermediate R/K Member
9.67e-9 meters/second
2.13e-5
4.42e-6
During the low recharge/low hydraulic conductivity sensitivity trial the cells with well
stresses representing Pekin wells #
3 and #6 went dry.
In a steady-state model, all wells
are
pumped simultaneously at their steady-statepumping rates for the duration of the simulation.
When recharge is minimal and a low hydraulic conductivity value is used, there is increased
drawdown in and around the pumping wells and cells with large well stresses can easily go dry,
21

especiallywhen they are in close proximity to
other cells with large well stresses.
Pekin wells #3
and #6 are in
close proximity to other Pekin wells (well #6
is near well #5;
well #3
is near wells
#1
and #2), and it is for this reason that they went dry during the trial.
The wells do not go dry in
reality because they are cycled (i.e., they are not pumped continuously) and are most
likely not
pumped at the same time as the nearbywells.
Also, the actual hydraulic conductivity and recharge
values in the study area are most ‘likely higher that the lowest values determined during,
development ofthe conceptual model (RAPPS, 2003).
The rewetting feature of MODFLOW allows the reactivation ofcells that have been
converted from active to inactive cells by the program because the head has dropped below the
bottom elevation ofthe cell (McDonald et al., 1991).
Rewetting was unable to prevent the cells
with well stresses representing Pekin wells #
3 and #6
from going dry during the low recharge/low
hydraulic
conductivity sensitivity trial,
however, so hydraulic conductivity was adjusted (while
recharge remained set at 2.39e-9 meters/second) until the cells no longer went dry.
The hydraulic
conductivity value that achieves this was determined by running several simulations ofthe model,
gradually increasing the hydraulic conductivity value until neither ofthe cells was dry at the end of
the simulation.
The resultant K value is
5.09 e-4 meters/second.
This value replaced the low
hydraulic conductivity value of4.53 e-4 meters/second in the low recharge/low hydraulic
conductivity sensitivity trial
so the results from the four sensitivity trials could be
compared
(RAPPS, 2003).
-‘
RESULTS
The groundwater head elevations were simulated and calibrated according to observed
mass water level measurements, based on the methods described by the foregoing.
Figure 4
illustrates the predicted groundwater elevation contours or lines of equipotential predicted by
MODFLOW.
A “equipotential line” means a line in a two-dimensional groundwater flow field
suchthat the total hydraulic head is the same for all points along the line (Fetter, 1994).
22

Figure
4. Contourmap of equipotential lines
indicating groundwater
flow patterns
(0.5 meters contourinterval).
1300
2600
3900
Meters

The capture zones produced by the four sensitivity analysis trials varied in
size and
geometry.
Therefore, a conservative WHPA was constructed by outlining the area encompassed
by the four individual capture zones.
Because these four capture zones likely bound all possible
capture zones for the model, there is
a high degree ofconfidence in this composite WHPA than in
any ofthe individual WHIPAs (RAPPS, 03).
REGULATORY DEVELOPMENT
On March 29, 2004 the Illinois EPA received a letter from
the Mayor ofMarquette Heights
with an
enclosed resolution requesting that we develop this proposal.
This letter and the resolution
are provided in Exhibit
IV.
After receipt ofthis
letter and resolution the source water assessment
completed
for
Marquette
Heights
on
April
25,
2003
was
evaluated
to
determine
the
susceptibility/vulnerablity of the
wells
to
groundwater contamination.
Marquette Heights
Source
Water Assessment Fact
Sheet
is’ detailed in
Exhibit V.
The Illinois
EPA can develop a maximum
setback
zone
proposal
based
upon
the
following
from
Section
14.3(d)
of the
Act
(415
ILCS
5/14.3(d)):
Such
proposal
shall
be
based
upon
all
reasonably available
hydrogeologic
information,
include
the justification
for
expanding
the zone
of welihead
protection,
‘and
specify the
boundaries
of such zone,
no
portion of which
shall be
in
excess
of
1,000
feet
from
the
welihead.
Such justification
shall include the need to
protect a sole source ofpublic water
supply
or
a
highly
vulnerable
source
of
groundwater,
or
an
Agency
finding’ that
the
presence of potential primary or potential
secondary sources or potential routes represents a
significant hazard to the public health or the environment. (Emphasis added)
Evaluation conducted by the Illinois EPA, documented in Exhibit V, concludes that the
Marquette Heights CWS wells are a highly vulnerable source ofgroundwater.
Figure
1
also
supports this conclusion.
In addition, the Illinois EPA issued an advisory ofgroundwater
contamination hazard for North Pekin and Marquette Heights on July 25,
1990 pursuant to’, Section
17.1(g) ofthe Act
(415 ILCS 5/17.1(g)).
This advisory was issued due to
the presence of
-
potential sources ofgroundwater contamination that represented a significant hazard to public
health and the environment.
Therefore, this proposal meets the requirements forjustification,
24

emphasized above, under Section
14.3(g) ofthe Act.
Further, pursuant to Section 14.3(d) ofthe
Act, the Illinois EPAprovided notice by certified mail to
the City ofMarquette Heights, Village of
North Pekin, the Tazewell County Zoning Office, and the Central Priority Groundwater Protection
Planning Committee on June 21, 2004.
On July 7, 2004 the Central Priority Planning Committee
included discussion ofthe proposed Marquette Heights maximum setback zone as one ofthe
agenda items for discussion.
I presented the background on the proposal
and asked for the
committee’s input.
A couple of general questions were asked and answered to their satisfaction.
The regional committee understood the need for this protective measure and raised no objections
to proceeding with the proposal.
The IGPA (415 ILCS
55/5),
established the Interagency Coordinating Committee on
Groundwater (ICCG). The Illinois EPA chairs the ICCG.
The ICCG is comprised of: the Illinois
Department ofPublic Health (JDPH); Department ofNatural Resources (DNR); Department of
Agriculture (DOA); Illinois State Fire Marshall (ISFM);
Department of Commerce and Economic
Opportunity (DCEO),
and Illinois Emergency Management Agency (TEMA).
The IGPA also
establishes the Groundwater Advisory Council (GAC).
The GAC
is comprised ofenvironmental,
business, public water
supply, county and municipal government, regional planning, ai~d
water
well driller interest group representatives.
The ICCG and GAC work jointly, and the Illinois EPA
is
the liaison between the ICCG and GAC.
This state level coordinating committee and advisory
council
also works with the four priority groundwater protection-planning committees (415 ILCS
5/17.2) with diverse local stakeholder representation.
A joint meeting ofthe ICCG and GAC was
held on July 27, 2004 to
discuss, among other issues, their input on the Marquette Heights
maximum setback zone proposal.
Similar to the regional committee, the GAC understood the need
for theproposal and raised no objections.
Pursuant to Section
14.3
(d) ofthe Act, the Illinois EPA”...may proceed with filing such a
proposal unless the county or municipality, within 30 days ofthe receipt ofthe written notice, files
a request for a conference with the Agency.
The Illinois EPA did not receive any comments,
within the 30-day period prescribedby Section 14.3(d) ofthe Act, from City ofMarquette-Heights,
Village ofNorth Pekin, or the Tazewell County Zoning Office in regard to the written notice
25

provided to them by the Illinois EPA on June 25, 2004.
Accordingly, we are proceeding with this
proposal to the Board.
The Illinois EPA’s Proposal
The following is
a section-by-section summary ofthe Illinois EPA’s proposal.
Subpart A General Maximum Setback Zones
This
Subpart establishes the general provisions associated with all maximum setback zones
that are adop’ted by the Board:
Section 618.100 Purpose
This
Section
defines
the
purpose
of maximum
setback
zone
regulations
delineated
pursuant to Section
14.3 ofthe Act (415 ILCS
5/14.3).
Section
6 18.105 Definitions
The Illinois
EPA has proposed general
definitions
for maximum
setback zones within
the
State of Illinois.
The definitions
proposed are derived
from the
Act,
IGPA, and
other Board
regulations.
Subpart B Marquette Heights CWS Well Maximum Setback Zones
This Subpart details the specific requirements that are being proposed to
apply within the
delineated Marquette Heights CWS well maximum setback zones.
26

Section 6 18.200 Purpose
The Purpose section describes the standards and requirements beingproposed for the
protection ofthe Marquette Heights CWS wells.
Section 618.205
1,000 Foot Maximum Setback Zone Prohibition
Section
618.205
describes
the
requirement
that
new
potential
primary
sources
are
prohibited within the maximum setback zone ofthe Marquette Heights CWS
wells in Appendix A
ofthis Part.
This requirement is based on Section
14.3 ofthe Act.
Section 618.
Subpart B.Appendix A
Appendix
A
details
a map
of the
Marquette
Heights
CWS
wells
(50280
and
50281),
maximum
setback zone boundaries, roads, and
property boundaries
and
associated
identification
numbers.
The local property boundaries and associated identification numbers were obtained from
the county assessor’s office.
In addition,
to
assist with implementation,
ease of understanding of
the area being regulated,
and conformance with
local zoning, Illinois EPA has annotated the map
with the properties located wholly or partially within the proposed maximum setback zone.
Technical Feasibility and Economical Reasonableness
The pollution
of groundwater can have wide-ranging
economic
implications
to
local
communities
and
businesses
(Bhagwat
and
Berg,
1992)
and
(U.S.
EPA,
1996).
Groundwater
contamination can produce significant economic hardships for local businesses
and
communities,
including
the
following:
devalued
real estate;
diminished
home sales or commercial
real estate
sales; loss
to
the tax base;
consulting
and
legal
fees; increased operation
and maintenance costs;
increased water rates
for alternative water
supplies
as
well as
the
cost
of new equipment
and
27

treatment; and remediation coSts including
site characterization, feasibility studies, and
long-term
treatment
and
disposal
costs
(Freshwater
Foundation,
1989). Further,
communities
that
deliver
water that
exceeds the drinking water standards
are placed
on restricted status and
are not
issued
permits
for water main extensions that would allow the
expansion ofthe distribution system.
The
ratio of contamination costs to basic prevention
costs may be as large as 200:1
(U.S.
EPA,
1996).
All ofthese costs have the potential to adversely affect local economic development.
The
U.S.
EPA prepared an
assessment of the national water supply replacement
cost
due
to
groundwater contamination from
nine types of contamination sources.
The total
national
value of resource damage
from these
sources was estimated to be
greater than
S28
billion.
The
U.S.
EPA
study
also
provided
a
summary
from
a
site-specific
case
involving
a
leaking
underground
storage tank that has
cost $1.9
million in
state funds, and
$1
million
for dIrect and
borrowed funds
to
the community for aquifer rehabilitation.
In addition,
for contamination cases
where the only feasible alternative is drilling new wells, the cost ofinstalling new transmission and
distribution lines to connect private well users to existing community water supplies
is substantial.
In
cases
where
these
alternatives
were
necessary,
costs
have ranged
from
$70
thousand
to over
$2.3 million, depending on the extent ofcontamination and the population served.
The Illinois
EPA has also
evaluated costs associated
with contaminated community water
supplies in Illinois (Cobb, 2000
and 2001).
In addition, to previous testimony provided by Illinois
EPA, the groundwater contamination at East Alton provides another example ofthe cost versus the
benefit
of
implementing
groundwater
protection
measures.
East
Alton,
located
in
‘Madison
County,
has had
to
use
one of their wells
as
a
hydraulic
containment
well with
treatment
and
discharge
to
surface water to
protect their well
field from
a
methyl
tertiary butyl ether (MTBE
plume) with a
concentration exceeding
1,000 parts per billion
(“ppb”).
Two leaking underground
storage
tanks
located with the’ recharge area of the East Alton well field have
each spent nearly
$1,000,000
each,
and the remediation
is
not complete.
Table 4
details
the
cost-benefit analysis
that East Alton’s consultant performed on providing a safe
and’ adequate water supply.
28

Table
4:
Cost Benefit Analysis ofTreating or Providing an Alternative Water
Supply in East Alton,
Illinois (Madison County) due to MTBE Groundwater Contamination
COST COMPARISON
SUMMARY
(a) Assume Illinois EPA loan, 20 years, 3,
Level debt (no coverage)
(b) Increase over and above current annual cost of $590,000, excluding depreciation
Case
Description
Capital
Cost
Debt
Service
(a)
O&M
Cost
Increase
Annual Cost
Increase
Revenue
Increase (b)
Ia
Pump, Treat, Discharge
(Iron & Manganese
Reduction)
$41,700
.
$2,803
$89,900
$92,603
15.7
lb
Pump,
Treat,
Discharge
(Iron
&
Manganese
Reduction:
MTBE
Reduction
with
Air Stripper)
$658,300
$44,254
$156,900
$201,154
34.1
lc
Pump,
Treat,
Discharge
(Iron
&
Manganese
Reduction:
MTBE
Reduction with GAC)
$1,048,600
$70,492
$738,200
$808,692
137.1
2
,
Pump,
Treat,
Discharge
(Iron
&
Manganese
Reduction:
MTBE
Reduction with Air Strippers
&GAC)
$2,904,500
.__________
$195,255
.
.
$1,561,000
.
$1,756,255
297.7
.
3
New Well Field
$2,727,100
$183,329
$51,400
$234,729
39.8
4
Altemate
Treated
Water
Supply
$1,505,000
$101,174
$568,900
$670,074
,
113.6
These
and
other
examples
(Bliagwat
and
Berg,
1992)
document
that
the
cost
of
groundwater contamination is
significant.
In contrast, establishing
a maximum setback zone will
reduce
the
likelihood
of
contamination,
thereby
reducing
costs.
In
summary,
the
benefit
of
adopting a maximum setback zone that minimizes the risk ofpotential
contamination exceeds the
cost ofthis proposed regulation.
CONCLUSION
This concludes my testimony.
I will be happy to
address any questions.
29
Deputy Manager
Division ofPublic Water Supplies
Illinois Environmental Protection
Agency

EXhIBIT I
-‘
Richard P.
Cobb’s Curriculum Vitae
30

Back to top


CURRICULUM VITAE
of

Back to top


RICHARD P. COBB, P.G.
I. Personal
A. Present Position:
Deputy Manager, Division ofPublic Water Supplies, Bureau of
Water, Illinois Environmental Protection Agency
B. Personal:
Married to Janet Cobb
since July 12,
1986 with one son Dylan
Cobb
who is
11
years old.
Actively involved at Our Saviors’ Lutheran
Church and School, as follows: Director ofthe Board ofMissions
and Evangelism, December 1999 to December 2001;
Directorofthe
Spiritual Life Team associated with implementation of a capital
campaign in 2002;
5
grade Sunday school teacher, May 2003
May
2004;
Board of Elders, December 2003
-
present; Parent Teacher
League; and Cub Scouts.
II. Education
1979
San
SalvadorBahamian Research Station (Marine Ecology and Paleoecology)
1980
South Dakota School ofMines
and Technology (Field Geology)
1981
B.S.
Illinois State University
(Geology)
1984
Illinois State University (Hydrogeology and Engineering Geology)
1986
United States Geological Survey National Training Center (Geochemistry for
Groundwater Systems)
1986
Illinois State University Graduate Hydrogeology Program (Hydrogeology ofWaste
Disposal Sites)
1987
Illinois State University Graduate Hydrogeology Program (Hydrology of Glacial
Deposits in Illinois)
1992
United States Geological Survey (MODFLOW and MODPATH groundwater
modeling)
1994
24 Hour Occupational Health & Safety Training
31

1995
Illinois State University Graduate Hydrogeology Program (Computer Modeling of
Groundwater Systems)
2001
United States Environmental Protection Agency Introduction to Quality Systems
Requirements and Basic Statistics Courses
2001
United States Environmental Protection Agency, Drinking Water Academy, Source
Water Contamination Prevention Measures
III. License
Licensed Professional Geologist
196-000553, State ofIllinois, expires 3/31/2005
IV. Certifi~ition
Certified Professional Geologist 7455,
Certified by the American Institute ofProfessional
Geologists 4/88
Certified Total Quality Management Facilitator
Certified by Organizational Dynamics Inc., 5/92
V. Summary ofExperience
Nineteen years ofdiversified,
interdisciplinary experience as a: deputy division manager (2-
years), section manager (10-years), unit manager (4-years), and lead worker (3-years) for
Illinois’ statewide groundwater protection and drinking water program. More than twenty years
ofexperience ofworking as a professional geologist
in hydrogeology, environmental geology
and petroleum geology. Three years of experience as a consulting well site geologist for major
and independent oil companies conducting petroleum exploration and development in
Arkansas, Kansas, Louisiana,
Montana, North Dakota, Oklahoma and Utah. Two years of
undergraduate teaching assistant experience for petrology, geologic field techniques, and
stratigraphy courses.
VI. Summary ofComputer
Skills
I use the following computer programs: WordPerfect
10, Microsoft Word 2000, Excel, Access,
Power Point, ARC VIEW 3.2, Aqtesolv, SURFER, WHIPA, DREAM, AQUIFEM,
MODFLOW, MODPATH, and Visual MODFLOW.
VII.
Professional Representation
A.
Illinois Environmental Protection Agency (Agency)
liaison to the Governor appointed
Groundwater Advisory Council (GAC).
32

B.
Agency representative ofi the Interagency Coordinating Committee on Groundwater
(ICCG).
C.
Agency representative on the Senate Working Committee on Geologic Mapping.
D.
Agency representative on the State Certified Crop Advisory Board,
and chairman ofthe
ethics and regulatory subcommittee established in association with the American Society of
Agronomy/American Registry ofCertified Professionals in Agronomy, Crops and Soils
1995
2001.
E.
Past Chairman ofthe Agency Geographic Information System Users Group.
F.
Past member ofthe Agency Cleanup Objectives Team from
1988 to 1993 that established
soil and groundwater cleanup objectives on a site-by-site basis.
G.
Member oftechnical work group that developed Illinois groundwater quality standards
regulations.
H.
Project leader for a special Agency work group that utilized vadose zone and solute
transport modeling to develop soil cleanup objectives under different hydrogeologic settings
for the leaking underground storage tank program.
I.
Agency representative on a special subcommittee ofthe ICCG charged with the
development ofa State Pesticide Management Plan for the protection, ofgroundwater.
J.
Member ofAgency task group involved with developing the siting criteria for a low level
radioactive waste site in Illinois.
K.
Environmental regulatory representative from Illinois on the Fresh Water Foundation’s
Groundwater Information System (GWIS) project in the great lakes basin.
L.
Agency representative on four priority regional groundwater protection planning,
committees designated by the Director to advocate groundwater protection programs at the
local level.
M. Representative on the Groundwater Subcommittee of the National Section 305(b) Report,
ofthe Clean Water Act Consistency Workgroup.
N.
Bureau ofWater representative on the Agency’s Locational Data Policy Workgroup.
0.
Bureau ofWater representative on the Agency GIS
Steering Committee.
P
Member ofthe Ground Water Protection Council’s Welihead Protection Subcommittee
Q
Elected Co-Chair ofthe Groundwater Division ofthe GWPC on September 1997
GWPC
is a national, not for profit organization whose members are interested in the protection ofthe

nation’s ground water supplies. The mission ofthe GWPC is to promote the safest methods and
most effective regulations regarding comprehensive ground water protection and underground
injection techniques.
GWPC’s meetings, workshops, seminars, and symposia provide forums,
educational resources, open
communication, and active participation by its members. GWPC’s
membership includes local,
state, and federal governments, citizen groups, industry, academia,
and other parties interested in responsible protection and management of ground water
resources.
R.
Chairman ofIllinois’ Source Water Protection Technical and Citizens Advisory
Committee.
S.
United States Environmental Protection Agency National Ground Water Report work
group member. One of 10
state representatives serving on
a work group sponsored by U.S.
EPA headquarters charged with development ofa national report to be submitted to the U.S.
Congress
on the
status and needs
for groundwater protection programs across the country.
January 1999 to July2000.
T.
Northeastern Illinois Planning Commission Water Supply Task Force member.
The
purpose ofthis task force is to assist the Commission
in the development of a Strategic Plan for
Water Resource Management. March
1999 to 2001.
U.
GWPC/U.S. EPA Futures Forum Work Group providing input on source water protection
for the next 25
years. January 1999 to
2001.
V.
GWPC/ASDWA work group providing input into the U.S. EPA Office of Ground and
Drinking Water Strategic Plan for Source Water Protection. June 2000.
W.
Co-Chair U.S. EPA Headquarters/GWPC/ASDWAIASWIPCA workgroup to develop the
second Ground Water Report to
Congress. March 2002
Present.’
X.
Member ofAgency Enforcement and Compliance System (ACES) Oversight Committee
and Agency Information Management Steering Committee.
June 2002
Present.
Y.
Chaired the ICCG Groundwater Contamination Response Subcommittee responsible for
developing a new strategy for responding to
groundwater contamination and the subsequent
notification ofprivate well owners. March 2002
Present.
Z.
Illinois EPA representative on the ICCG Water Quantity Planning Subcommittee working
on development of a surface and groundwater quantity- planning program for Illinois. June
2002
-
Present
ZZ.
Bureau ofWater representative on Agency Environmental Justice Advisory Group.
January 2003.
-
AA. Bureau ofWater representative working on the development ofa new Strategic
Management Plan for Illinois EPA under the new administration. August 2003
present.
34

VIII. Professional Affiliation
American
Institute ofProfessional Geologists
Illinois Groundwater Association
Ground Water Protection Council
National Groundwater Association -Association of Groundwater Scientists and Engineers
Sigma Xi
The Scientific Research Society
IX. Chronological Experience
5/02
Present
-
Deputy Manager, Division of Public Water Supplies, Bureau of Water
(BOW), Illinois Environmental Protection Agency (EPA).
My
primary responsibilities
include managing the groundwater and source water protection, field operations, and the
administrative sections ofthe division.
Further, I assist with administering the public water
supervision program under the federal Safe Drinking Water Act (“SDWA”).
Additionally,
responsibility includes the integration of source water protection with traditional water supply
engineering and treatment practices, and to
further assist with linking Clean WaterAct and
SDWA programs.
I also represent on the BOW on Illinois EPA’s: Strategic Management
Planning Team; Environmental Justice Committee; Agency Information Management Steering
Committee; Agency Compliance and Enforcement System Oversight Group (ACES OG); and
the Geographic Information System Steering Committee.
Further, I chair the ACES OG
Subcommittee worki’ng on an e-permit system.
9/92-5/02
-
Manager of the Groundwater Section, Division ofPublic Water Supplies,
BOW, Illinois EPA.
I also
serve periodically as Acting Manager forthe Division ofPublic
Water Supplies.
Myprimary responsibilities include development and implementation of
Illinois statewide
groundwater quality protection, USEPA approvedwellhead protection
program, and source water protection program.
My responsibilities include development and
implementation ofIllinois statewide groundwater quality protection, USEPA approved
wellhead protection program, and the source water assessment and protection program for
surface and groundwater public drinking water supplies.
These duties include extensive
coordination with federal, state and local stakeholders that include the Governor appointed
Groundwater Advisory Council, the Interagency Coordinating Committee on Groundwater,
four Priority Groundwater protection planning Committees, illinois Source Water Protection
Technical and Citizens Advisory Committee and through being co-chair ofthe GWPC Ground
Water Division.
Additionally, work with the Bureau ofWater permit and Mine ‘Pollution
Control Program staff to develop source water protection, groundwater monitoring and
aquifer
evaluation and remediation programs.
I have also served as a primary Agency witness at
Illinois Pollution Control Board proceedings in the matter.ofgroundwater quality standards,
technology control regulations, regulated recharge areas and water well setback zone
exceptions. Furthermore, I have served as an Agency witness in
enforcementmatters.
7/91-9/92
-
Acting Manager ofthe Groundwater Section, Division ofPublic Water
Supplies, BOW, Illinois EPA.
My responsibilities include continued development and,
implementation ofIllinois
statewide groundwater quality protection and USEPA’s approved
35

wellhead protection program. Additionally, work with the Bureau ofWater permit and Mine
Pollution Control Program staffto develop groundwater monitoring and aquifer evaluation,
remediation and/or groundwater management zone programs. I also served
as a primary
Agency witness at illinois Pollution Control Board proceedings
in the matter ofgroundwater
quality standards and technology control regulations. Additionally, serve as an Agency total
quality management (TQM) facilitator, and TQM trainer.
Manage a statewide regulatory compliance program for activities located within setback zones
and regulated recharge areas ofpotable water supply wells.
7/88-7/91
-
Manager ofthe Hydrogeology Unit, Groundwater
Section, Division
of Public
Water Supplies, Illinois EPA.
Manage a staff ofgeologists and geological engineers that
applyhydrogeologic and
groundwatermodeling principals to statewide groundwater protection
programs.
Oversight the development, integration and application ofGeographic Information
System, global positioning system, geostatistical, optimization, vadose zone, solute transport,
groundwater flow and particle tracking computer hardware/software programs for groundwater
protection and remediation projects.
-
Provide administrative support
to the Section manager in coordination, planning, supervision,
grant application and management, regulatory and legislative development in relation to
the
statewide groundwater quality protectionprogram. Establish
soil and groundwater cleanup
objectives
on the Agency Cleanup Objectives Team.
7/85-7/88
-
Environmental Protection Specialist I, II, and III
in the Groundwater Section,
Division of Public Water Supplies, Illinois
EPA.
Lead worker and senior geologist in the
development and implementation ofIllinois statewide groundwater quality protection program.
3/81-12/83
-
Consulting Well Site Geologist
for Geological Exploration (GX) Consultants of
Denver Colorado. Worked as a consulting well site geologist in petroleum exploration and
development for major and independent oil companies. Responsible for the geologic oversight
oftest drilling for the determination and presence ofpetroleum hydrocarbons.
Prepared
geologic correlations and performed analysis of geophysical logs, drilling
logs and drill
cuttings.
Supervised and
analyzed geophysical logging. Made recommendations for conducting
and assisted with the analysis ofdrill stem tests and coring operations. Provided daily
telephone reports and final written geologic reports to clients.
1/79-3/81 Title:
Undergraduate Teaching Assistant for
Illinois State UniversityGeology
Department. Responsible for teaching and assisting with lecture sessions, lab sessions,
assignment preparation and grading for petrology, stratigraphy and geologic field techniques.
X. List of Rulemaking or Cases in Which Expert Witness Experience Has Been Gained
IN
THE
MATTER OF: GROUNDWATER QUALITY
STANDARDS
(35
ILL.
ADM. (~ODE
620), R89-14(B) (Rulemaking).
Subject:
I served as the principal Illinois EPA
witness
recommending adoption ofthis Agency proposal.
R89-l4(B) was adopted by the Board.
36

IN THE MATTER OF: GROUNDWATER PROTECTION: REGULATIONS FOR
EXISTING AND NEW ACTIVITIES WITHIN SETBACK ZONES AND REGULATED
RECHARGE AREAS
(35
ILL. ADM. CODE 601, 615, 616 and 617). R89-5
(Rulemaking).
Subject:
I served as the principal Illinois EPAwitness
supporting adoption ofthis Agency
proposal.
R89-5 was adopted by the Board.
IN THE MATTER OF:
GROUNDWATER QUALITY STANDARDS (35 ILL. ADM. CODE
620), R93-27 (Rulemaking).
Subject:
I served as the principal Illinois EPA witness
recommending’amendments ofnew constituent standards in this Agency proposal.
IN THE MATTER OF: PROPOSED REGULATED RECHARGE AREAS FOR PLEASANT
VALLEY PUBLIC WATER DISTRICT, PROPOSED AMENDMENTS TO (35 ILL. ADM.
CODE 617). R00-17 (Rulemaking).
Subject:
I served as the principal Illinois EPA witness
supporting adoption ofthis Agency proposal.
The proposal was adopted on July 26, 2001
and
became effective September
1, 2001.
IN THE MATTER OF:
NATURAL GAS-FIRED, PEAK-LOAD ELECTRICAL
GENERATION FACILITIES (PEAXER PLANTS). ROl-lO (Informational Hearii~g)
Subject:
I served as a supporting Illinois EPA witness
to discuss the impact ofpeaker plants on
groundwater.
IN THE MATTER OF: PROPOSED AMENDMENTS TO TIERED APPROACH TO
CORRECTIVE ACTION OBJECTIVES (35 Ill.
Adm. Code 742), (R00-19(A) and R00-19(B))
(Rulemaking).
Subject:
I served as a supporting Illinois EPA witness recommending inclusion
ofMTBE in this Agency proposal.
IN THE MATTER OF: GROUNDWATER QUALITY STANDARDS AND COMPLIANCE
POINT AMENDMENTS (35 ILL.
ADM. CODE 620). ROl-
14
(Rulemaking).
Subject:
I
served as the prihcipal Illinois EPA witness recommending amendments ofa groundwater
standard for MTBE and compliance point determinations in this Agency proposal.
The Board
adopted the proposal unanimously on January 24, 2002.
STATE OIL COMPANY vs. DR. KRONE, McHENRY COUNTY and ILLINOIS EPA, PCB
90-102 (Water Well Exception). Subject: This case involved obtaining an exception from the
owner ofa non-community water supply well for placing new underground gasoline storage
tanks within the 200 foot setback zone ofwell.
I served as the principal witness for Illinois
EPA on this case.
The Board granted the exception with conditions.
SHELL OIL COMPANY
vs. COUNTY ofDuPAGE and THE ILLINOIS
ENVIRONMENTAL PROTECTION AGENCY, PCB 94-25 (Water Well SetbackException).
Subject: A new underground gasoline storage tank was seeking an
exception from the Illinois
Pollution Control Board in relation to a private drinking water supply well setback zone.
‘The
DuPage County and the Illmois EPA held that the tank would be a sigmficant hazard and
opposed the exception
I served as the principal Illinois EPA witness
Shell withdrew the
petition from the Board after hearings were held
37

People ex rel.
Ryan v. STONEHIEDGE, INC., 288
Ill.App.3d 318, 223
Ill.Dec. 764, 680
N.E.2d 497 (Ill.App.
2 Dist. May 22,
1997).
Subject: State brought Environmental Protection
Act action against company engaged in business ofspreading deicing salt, alleging that salt
stored on company’s industrial property leaked into
area’s groundwater supply, thereby
contaminating it.
The Circuit Court, McHenry County, James C.
Franz, J., granted company’s
motion for summaryjudgment.
State appealed.
The Appellate Court, Coiwell, J., held that:
(1) wells existing before Illinois Water Well Construction Code was enacted are not
“grandfathered” in as being in compliance with Code,
so as to be automatically subject to
testing for groundwater contamination, and (2) fact issues precluded summaryjudgment on
claim arising from alleged deposit ofat least 50,000 pounds ofsalt in pile within 200 feet of
two existing water supply wells.
Affirmed in part and reversed in part; cause remanded.
People vs. AMOCO OIL COMPANY and MOBIL CORPORATION,
Case no. 90-CH-79,
Tenth Judicial Court, Tazewell County, Illinois.
Subject: Groundwater contamination resulting
from releases at above ground bulk petroleum storage terminals resulting in violation of
Illinois’ Groundwater Quality Standards Regulations (35 Illinois Administrative Code 620). I
served as the principal Illinois EPA witness on this case.
The case was settled with a penalty
of$125,000 and the requirement ofa comprehensive corrective action program.
People vs. STONEHEDGE INC. Case no. 94-CH-46, Circuit Court of the
19th
Judicial
Circuit,
McHenry County.
Subject:
This case involved a violation ofthe potable well setback zone
provisions ofSection
14.2 ofthe Illinois ‘Environmental Protection Act.
Stonehedge Inc.
placed
a salt pile of greater than 50,000 pounds within the 200 foot setback ofmultiple private
drinking water supply wells..
I served as an Agency principal witness.
Stonehedge Inc. was
found to be guilty ofviolating the setback prohibition in this case and was assessed a penalty
of$1,500 and attorneys fees ofS4.500.
SALINE VALLEY CONSERVANCY DISTRICT vs. PEABODY COAL COMPANY, Case
No. 99-4074-JLF, United States District Court for the Central District ofIllinois.
Subject:
Groundwater contamination from the disposal of12.8
million tons ofcoarse coal refuse, slurry
and gob.
Witness for the Illinois EPA.
This is an on-going
case.
HOUSE BILL
171 METHYL TERTIARY BUTYL ETHER (MTBE) ELIMINATION ACT,
House Environmental and Energy Committee.
Subject: Legislation to phase out MTBE within 3 years ofenactment.
I served as a principal
Illinois EPA witness
in support ofthe proposed legislation.
The legislation was adopted to
require the ban of MTBE within three years.
TERESA LeCLERCQ; AL LeCLERCQ; JAN LeCLERCQ~WALT LeCLERCQ, individually;
and on behalfofall persons similarly situated vs. THE LOCKFORMER COMPANY,
a
division ofMET-COIL SYSTEMS CORPORATION, Case no. 00
C 7164, United States
District Court, Northern District ofillinois.
Subject: Iwas called as a witness by Lockformer
Company to testify about a Well Site Survey prepared and published in
1989 by the Illinois
EPA for Downers Grove communitywater supply.
38

TERESA LeCLERCO; AL LeCLERCO;
JAN LeCLERCQ; WALT LeCLERCQ, individually;
and on behalf ofall persons similarly situated vs. THE
LOCKFORMER COMPANY,
a
division ofMET-COIL SYSTEMS CORPORATION. Case no.
00 C 7164, United States
District Court,
Northern District of Illinois.
Subject:
I was called as a witness by Lockformer
Company to testify about groundwater contamination in the Lisle and Downers Grove area.
HOUSE BILL 4177 PRIVATE WELL TESTING PROPERTY TRANSFER and
DISCLOSURE ACT, House Environmental and Energy Committee.
Subject: Legislation to
require volatile organic chemical contamination testing ofprivate wells at the time ofproperty
transfer and reporting to the Illinois Department of Public Health and the Illinois EPA.
I
served as a principal Illinois EPA witness
in support ofthe proposed legislation.
The
legislation was not supported due to the opposition from the realtors association.
MATTER OF PEOPLE vs. PEABODY COAL, PCB 99-134 (Enforcement).
Subject: the State
ofIllinois
developed an amended complaint against Peabody Coal Company (PCC) for
violation ofthe groundwater quality standard for total dissolved solids,
chloride, iron,
manganese, and sulfate.
I developed testimony to address PCC’s affirmative defense of
challenging the basis forthe groundwater quality standards for these contaminants.
XI. Honors
Sigma Xi 4/81
Superior Performance Award
1/86
Superior Performance Award
11/87
Certificate ofCommendation for Groundwater Protection Programs 4/92
Certificate ofAppreciation for work on the Agency’s Cleanup Objectives Team 4/93
Certificate ofAppreciation for participation as an Agency TQM facilitator 4/93
Certificate of Appreciation forparticipation on a total quality action team 4/93
Certificate ofAppreciation for participation in the Governors Environmental Youth Corps
Program 4/93
Director’s Commendation Award forparticipation in the development ofthe City ofPekin, II.
Groundwater Protection Program and commitment to
the protection ofIllinois groundwater.
7/95
.
Certificate ofAppreciation for outstanding contribution to the developmentofthe Ground
Water Guidelines for the National Water Quality Inventory 1996 Report to Congress from the
United States Environmental Protection Agency Office of Ground Water and Drinking Water.
8/96
39

Groundwater Science Achievement Award from the Illinois Groundwater Association for
outstanding leadership and service in the application of groundwater science to
groundwater
protection in Illinois and in the development ofthe welihead protection program and pertinent
land-use regulations.
11/97
Certificate ofAppreciation from the Ground Water Protection Council for distinguished
service, remarkable dedication, valuable wisdom and outstanding contribution as a GWPC
member, division co-chair and special committee member. 9/99
Drinking Water Hero Recognition by United
States Environmental Protection Agency
Administrator Carol Browner at the
25th
Anniversary ofthe Federal Safe Drinking Water Act
Futures Forum in Washington D.C.
12/99.
Certificate ofRecognition from United States Environmental Protection Agency Region V
Adminstrator Fred Lyons for outstanding achievements in protecting Illinois’
groundwater
resources.
12/99
Nominated by the Governor’s Office ofTechnology for an Exemplary Systems in Government
(ESIG) Award from the Urban and Regional Information Systems Association (URISA) for the
Illinois EPA’s Source Water Assessment and Protection Internet Geographic Information
System. 6/01
XII.
PUBLICATIONS
A.
Illinois EPA Strategic Plans
Principal Author
Illinois Environmental Protection Agency’s
HomelandSecurity Strategy,
March 2003,
2Opp.
Co-Author
,
Illinois
Environmental Protection Agency’
Strategic Plan, Bureau of Water Section,
September
2003, pp.
B. Enforcement
Principal Author
II
40

Opinions
and
Conclusions
‘bf
Richard Cobb For the Matter of People v.
Peabody
Coal,
PCB
99-134 (Enforcement), May 23, 2003. 60 pp.
C. Legislation and Legislative Development Documents
Co-Author
A Planfor Protecting Illinois Groundwater,
Illinois Environmental Protection Agency, January
1986.
65
p.
Groundwater in Illinois: A
ThreatenedResource, A Briefing Paper Regarding the Needfor
Groundwater Protection Legislation,
Governors Office and Illinois Environmental Protection
Agency, April
1987. 34 pp.
Illinois GroundwaterProtection Act,
Public Act 85-0863, September 1987.
68 pp.’
Executive Order #5
-
requires the ICCG to
designate a subcommittee to
develop an
integrated
groundwater
and
surface
water resources
agenda
and
assessment
report.
The
report
shall
analyze the burden’s on Illinois
finite water resources,
quantify Illinois’
water resources,
and
prioritize an
agenda to
plan
for the protection
of these water resources.
The Director of the
Department of Natural Resources
chaired this
subcommittee.
The ICCG and
GAC
shall use
the subcommittee’s agenda and report
to
establish a water-quantity planning procedure for the
State.
The Governor signed executive order #5
on Earth Day April 22, 2001.
Amendments to Sections 2,
3 and 4 ofthe illinois
GroundwaterProtection Act 415 ILCS 55/2
to
establish a Groundwater and Surface Water Quantity Protection Planning Program, January
2002,
3
pp.
These amendments were never adopted due to opposition from the illinois Farm
Bureau.
PublicAct 92—652/Senate Bill 2072
-
Amends the Illinois Groundwater Protection Act to
require the Environmental Protection Agency to notify the Department ofPublic Health, unless
notification is already provided, of the discovery ofany volatile organic compound in excess of
the Board’s Groundwater Quality Standards or the Safe Drinking Water Act maximum
contaminant level.
Provides an exception to the restriction that the Act does not apply to a
community water supply that
is regulated under the Environmental Protection Act. Requires
the Department to
notifythe public within 60 days ofthe receipt ofthe notice
from the Agency
that the owner of any private water system, semi-private water system, or non-community
public water system needs to test his or her system forpotential
contamination.
Provides
guidelines for the publication ofnotice.
Passed the Senate Environment and Public Works
Committee February 2002.
The Governor signed this into law as Public Act 29-652 (effective
July 25, 2002).
-
HouseBill 4177-
amends the Illinois Groundwater Protection Act.
Provides that before
property that has a well used for drinking water on it can be sold, the owner must have the well
41

water tested for volatile organic chemical
groundwater contaminants.
Provides that if the well
water does not meet the Illinois Pollution
Control Board’s Groundwater Quality Standards (35
Ii Adm Code Part 620), the owner shall notify the Illinois Department ofPublic Health (TDPH)
and the prospective buyer ofthe property.
The realtors association July 2002 opposed House
Bill 4177.
House Resolution 1010
-
The resolution drafted by in cooperation with Senator Patrick Dunn’
staff urge the Illinois Environmental Protection Agency to
further strengthen its public
outreach efforts by developing, after negotiations with individuals representing areas affected
by contamination and other relevant State agencies, a procedure to notify property owners
whenever the Agency has confirmed an exceedence ofapplicable health
and safety standards,
using scientifically credible
data and procedures under Illinois regulations.
HR 1010 was
adopted by voice vote on June 1, 2004.
D. Water Quantity
Management and Protection
Principal Author
-
R.P.,
Cobb,
August 2002,
Development of Water
Quantity Planning and Protection
in Illinois
A
New Direction,
Proceedings of the Annual
Ground’ Water
Protection
Council
Technical
Forum, San Francisco, California, l0pp.
E. Regulations
Co-Author
Groundwater
Quality Standards (35
Ill.
Adm.
Code 620), November,
1991. 79 pp.
Groundwater Protection: Regulationsfor Existing and New Acti-~itieswithin Setback Zones
and RegulatedRecharge Areas
(35 IlL
Adm. Code 601,
615, 616 and 617), December 1991.
l32pp.
Principal Author
Maximum SetbackZoneRules For Community Water Supply Wells (35
Ill. Adm.
Code
671),
February 1988. 50 pp.
MinimalHazard
Cert~fIcation
Rules (35 Iii. Adm. Code
670),
February, 1994.
21
pp.
Amendments to the Groundwater
Quality Standards Regulation,
(35 Ill. Adm.
Code 620),
February 1994.
RegulatedRechargeArea Regulationfor Pleasant Valley Public
Water District, (35 Ill: Adm
Code 617),
September
1, 2001 Effective date.
42

Maximum Setback Zone Rekulationfor Illinois American
Water Company-Peoria, (35 Ill.
Adm. Code 618),
under development.
Maximum Setback Zone Regulationfor Marquette Heights,
June 2004, under development.
F. Groundwater Quality and Hydrogeology
Principal Author
Cobb,
R.P.,
and Sinnott,
C.L.,
1987.
Organic ContaminantsIn Illinois Groundwater.
Proceedings of the American Water Resources Association,
Illinois Section, Annual
Conference, Champaign, IL, April 28-29, p. 33-43.
Clarke,
R.P., and Cobb, R.P.,
1988.
Winnebago County Groundwater Study.
Illinois
Environmental Protection Agency.
58 pp.
Cobb,
R.P., etal,
1992.
Pilot GroundwaterProtection Needs Assessmentfor the City ofPekin.
Illinois Environmental Protection Agency.
111 pp.
Cobb, R.P., December
2001.UsingAn Internet Geographic Information System (GIS) to
Provide Public Access to HydrologicData,
Association of Groundwater Scientists and
Engineers, National Groundwater Assoc~iation,
National Conference Proceedings, Nashville,
Tennessee.
Wilson, S., Cobb, R.P., and K. Runkle, January 2002.
Arsenic in Illinois
Groundwater.
Illinois
State Water Survey, Illinois Environmental Protection Agency,
and Illinois Department of
Public Health. http://www.epa.state.il.us/water/groundwater/publications/arsenic/index.html, 7
pp.
Cobb,
R.P.,
Fuller,
C.,
Neibergall,
K.,
and
M.
Carson,
February
2004.
Community
Water
Supply Well Shooting/Blasting near the Hillcrest Subdivision Lake
County, Illinois Fact Sheet.
Illinois Environmental Protection Agency. 4 pp.
Co-author
P.C. Mills,
K.J. Halford, R.P. Cobb,
and D.J. Yeskis,
2002.
Delineation of the Troy Bedrock
Valley and evaluation ofground-waterflow by particle tracking, Belvidere, Illinois,
U.S.
Geological Survey Water-Resources Investigations Report 02-4062, 46 pp.
G. Groundwater Protection Program Documents
Principal Author
43

Buscher, W.E., and Cobb, R.P.,
1990.
Maximum Setback Zone Workbook.
Illinois
Environmental Protection Agency. 62 pp.
Cobb, R.P.,
1990.
Illinois GroundwaterProtection Program: A BiennialReport.
Interagency
Coordinating Committee on Groundwater. 53 pp.
Cobb, R.P., Buscher, W.E., and A. Dulka.
1991.
Illinois Approved Wellhead Protection
Program
Submitted to the United States Environmental Protection Agency Pursuant to Section
1428 ofthe Safe Drinking Water Act. Illinois Environmental Protection Agency. 44 pp.
Cobb, R.P.,
1992.
Illinois Groundwater Protection Program: A Biennial Report.
Interagency
Coordinating Committee on Groundwater.
118 pp.
Cobb, R.P.,
1994.
Illinois Groundwater Protection Program: A BiennialReport.
Interagency
Coordinating ‘Committee on Groundwater.
118 pp.
Cobb, R.P.,
1994.
BriefingPaper and Executive Summaiy on theillinois
Groundwater,
Protection Act and Groundwater Protection Programs with Recommendationsfrom the Illinois
Environmental Protection Agency Regarding the Siting ofa Low Level Radioactive Waste Site.
Presented to
the Low Level Radioactive Waste Task Force on December 9,
1994 in
Champaign-Urbana.
Cobb, R.P.,
1994.
Measuring Groundwater Protection Program Success.
In theproceedings of
a national conference on Protecting Ground Water: Promoting Understanding, Accepting
Responsibility, and Taking Action. Sponsored by the Terrene Institute and the United States
Environmental Protection Agency in Washington D.C., December 12-13, 1994.
Cobb, R.P., Wehrrnan, H.A.,
and
R.C. Berg,
1994.
Groundwater Protection Needs Assessment
Guidance Document.
Illinois Environmental Protection Agency. +94 pp.
Cobb, R.P., and Dulka, W.A.,
1995. illinois Prevention Efforts:
The Illinois
Groundwater
Protection Act Provides a
Unified Prevention-Oriented Process to Protect Groundwater as
a
Natural and Public Resource,
The AQUIFER, Journal ofthe Groundwater Foundation,
Volume 9, Number 4, March 1995.
3pp.
Cobb,
R.P.,
1995.
Integration ofSource Water Protection into a Targeted Watershed Program.
In the proceedings ofthe GROUND WATER PROTECTION COUNCIL’S Annual Ground
Water Protection Forum in Kansas City Missouri.
Cobb, R.P.,
1996.
A
Three Dimensional Watershed Approach: illinois Source Water
PrOtection Program.
In the proceedings ofthe GROUND WATER PROTECTION
COUNCIL’S Annual Ground Water Protection Forum in Minneappolis Minnesota.
-
Cobb, R.P., and W.A. Dulka,
1996.
Discussion Document on
theDevelopment ofa Regulated
Recharge Areafor thePleasant
ValleyPublic Water District.
illinois Environmental Protection
Agency. pp 28.
44

Cobb, R.P.,
1996.
Illinois Source
Water Protection Initiatives-GroundwaterPerspective.
In
the proceedings ofthe American Water Works Association’s Annual Conference and
Exposition in Toronto Canada. pp
585- 594.
Cobb, R.P.,
1996.
illinois’ Groundwater Protection Program: A Biennial Report.
Interagency
Coordinating Committee on Groundwater. 93
pp.
Cobb, R.P., and Dulka, W.A., 1996.
illinois Community Examines Aquifer Protection
Measures.
American Water Works Association Journal.
plO.
Cobb, R.P., McMillan, W.D., and K.E. Cook.
1996.
Drinking and Groundwater Sections of
Illinois
Water Quality Report
(Section 3 05(b) Report.
Cobb, R.P.,
1996.
Illinois’ Core Comprehensive State Groundwater Protection Program
Application.
Illinois Environmental Protection Agency.
159 pp.
Cobb, R.P.,
1998.
Illinois Source
Water Assessment and Protection Program Application.
180
pp.
Cobb, R.P., etal. October
1999,
Ground Water Report to Congress,
United States
Environmental Protection Agency.
Cobb, R.P., September 2001,
RegulatedRecharge Area Proposalfor the Pleasant
Valley
Public Water District,
Ground Water Protection Council Annual Forum Proceedings, Reno
Nevada,
13 pp.
Cobb, R.P. April 2002,
Groundwater Contamination Response Strategy,
Interagency
Coordinating Committee on Groundwater,
34 pp.
-
Co-Author
Clarke, R.P., Cobb, R.P. and C.L. Sinnott,
1988.
A Primer Regarding Certain Provisions ofthe
Illinois GroundwaterProtection Act.
Illinois Environmental Protection Agency. 48 pp.
Kanerva, R.A.,Clarke, R.P. and
R.P.
Cobb
1988.
An Issues / Options Paperfor
Comprehensive Water Quality Standardsfor Groundwater.
Interagency Coordinating
Committee on Groundwater. 25
pp.
Kanerva, R.A., Clarke, R.P. and R.P Cobb
1989.
Discussion Documentfor
Comprehensive
Groundwater Quality Standards.
Interagency Coordinating Committee on Groundwater.
25 pp.
Dulka, W.A., and R.P. Cobb,
1995.
Grassroots Group Forges Groundwater Protection Law.
American Water Works Association, Opflow, Vol.
21 No.
3. 2pp.
H. Geology
45

Principal Author
Cobb, R.P.,
1980.
Petrography oftheHoux Limestone in Missouri.
Transactions ofthe Illinois
Academy ofScience Annual Conference, Illinois Wesleyan, Bloomington, IL.
46

EXHIBIT II
Technical References
47

Anderson, M. P., and Woessner, W.W.,
1992, Applied Groundwater Modeling Simulation ofFlow
and Advéctive Transport: Academic
Press, 354 p.,
Bear, Jacob,
1972, Dynamics ofFluids in Porous Media, New York Dover
Publications
Inc., 727 p.
Berg, R.
C. and Kempton, J. P.,
1987, Stack-unit mapping ofgeologic materials to a
depth of 15 meters: Illinois
State Geological Survey Circular 542, 23 p.
Bhagwat S.B., and R.C. Berg,
1991, Environmental Benefits Versus the Costs ofGeologic
Mapping,
Illinois State Geological Survey Circular 159, 40 p.
Burch, S.
L. and Kelly, D. J.,
1993, Peoria-Pekin Regional Groundwater Quality Assesment:
Illinois
State Water Survey Research Report
124.
Cobb, R.P., Wehrmann, H.A., and R.C. Berg, January
1995,
Guidance Document for Conducting
Groundwater Protection Needs Assessments, Illinois
EPA,
100 p.
-
Cobb, R.P., April 2000, Testimony Regarding The Matter of: Proposed Regulated Recharge Areas
for Pleasant Valley Public Water District (35 Ill. Adm.
Code
617), R00-17, Zip
Cobb, R.P., March 2001, Testimony Regarding The Matter Of: Groundwater Quality Standards for
(MTBE) and Compliance Point Amendments (35 Ill. Adm.
Code 620), RO1-
14, 29 p.
Domenico, P. A. and Schwartz, F.
W.,
1998,
Physical and
Chemical Hydrogeology: New
York, NY, John Wiley and
Sons Inc., 506 p.
Esling, S. P., 2000, Graphic
Groundwater Version 3.20.
Fetter, C. W.,
1994, Applied Hydrogeology: New York, NY, Macmillan College Publishing
Company, Inc., 691
p.
Freshwater Foundation,
1989, Economic Implications ofGroundwater Contamination to
Companies and Cities, 80 p.
Hansel, A. K. and Johnson, W. H.,
1996, Wedron and Mason Groups: Lithostratigraphic
reclassification of deposits of the Wisconsin Episode, Lake Michigan Lobe area: Illinois
State Geological Survey Bulletin 104,
116 p.
Horberg, L.,
1950, Groundwater in the Peoria Region, Part
1 —Geology: Illinois
State Geological
Survey Bulletin 75.
Illinois
Environmental Protection Agency,
1992, The Illinois Welihead Protection Program
Pursuant to Section
1428 ofthe Federal Safe Drinking Water Act:
Illinois Environmental
Protection Agency, 44 p.
48

Leighton, M. M., Ekblaw, G.
E’:, and Horberg, L.,
1948, Physiographic divisions ofIllinois:
Illinois
State Geological SurveyReport of Investigation 129,
19
p.
Lineback, J.,
1979, Quatemary deposits of Illinois (map): Illinois State Geological Survey, scale
1:500,000.
Marino, M. A.
and Schicht,
R. J.,
1969, Groundwater Levels and Pumpage in the Peoria-Pekin
Area, Illinois,
1890-1966:
Illinois State Geological Survey Report ofInvestigation 61.
McDonald, M.
G. and Harbaugh, A. W.,
1988, A modular three-dimensional finite-difference
groundwater flow model: U.S.
Geological Survey Open File Report 83-875.
McDonald, M.
G., Harbaugh, A. W., Orr, B. R, and. Ackerman, D. J,
1991, A method for
converting no-flow cells to variable-head cells for theU.S.
Geological Survey modular
finite-difference ground-water flowmodel:
U.S. Geological Survey Open File Report 91-
536.
Morris, D.
A. and Johnson, A. I., 1967, Summary ofhydrologic and physical properties of rock
and soil materials as analyzed by the Hydrologic Laboratory ofthe U.S.
Geological Survey
1948-60:
U.S. Geological Survey Water Supply Paper 1839-D, 42 p.
Pollock, D.
W.,
1989, Documentation ofComputer Programs to Compute and Display Pathlines
Using Results From the U.S. Geological Survey Modular Three Dimensional Finite-
Difference Groundwater Flow Model:
U.S. Geological Survey Open File Report 89-38 1,
188 p.
RAPPS Engineering and Applied Science, March 2003, Delineation ofa Well Protection Area
Marquette Heights, Illinois
Capture Zone Delineation Report, Unpublished Contractual
Report Provided to the Illinois EPA, 93
p.
Schicht, R.
J.,
1965, Groundwater Development in East St. Louis Area, Illinois:
Illinois
State
Water Survey Report ofInvestigations 51.
Sloto, R. A.
and Crouse, M. Y.,
1996, HYSEP:
A computer program for streamfiow hydrograph
separation and analysis:
U.S.
Geological Survey Water Resources Investigations Report
96-4040, 46 p.
Thornthwaite, C. W.,
1964, Average climatic water balance data ofthe continents; Part 7 United
States:
Publications in Climatology,
v.
17-3.
United States Environmental Protection Agency (U.S. EPA), June 1987, Guidelines for the
Delineation ofWelihead Protection Areas, 64 p.
U.S. EPA, May 1988, Model Assessment for Delineating Wellhead Protection Areas (WFIPAs),
211
p.
49

U.S. EPA, March
1996, Benefits and Costs ofPrevention: Case Studies of Community Welihead
Protection Volume
1, EPA
813-B-95-005,
62 p.
Visocky, A. P. ‘and Sanderson, E.
W.,
1996, Evaluation of Ground-water Resource Near Test
Holes
5-93
and 9-93 and Sustained Yield of Sankoty Well Field at Peoria, Illinois: Illinois
State Water Survey Contract Report 603.
Willman, H. B. and Frye,
J.
C.,
1970,
Pleistocene stratigraphy of Illinois:
Illinois State Geological
SurveyBulletin 94, 204
p.
Willman, H.
B., et al.,
1967, Geologic map ofIllinois (map): Illinois State
Geological Survey,
scale 1:500,000:
Willman, H. B.,
et al.,
1975, Handbook ofIllinois Stratigraphy: Illinois State Geological Survey
Bulletin
95,
261
p.
50

EXHIBIT
III,— United States National Map Accuracy Standards
51

?Q~
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b(~k.
52

EXHIBIT
United States National Map Accuracy Standards
With a view to the utmost economy and expedition in producing maps which fulfill not only
the broad needs for standardor principal maps, but also the reasonable particularneeds ofindividual
agencies, standards ofaccuracy for published maps are defined as follows:
1.
Horizontal accuracy.
For maps on
publication
scales larger
than
1:20,000, not more than
10
percent ofthe points tested shall be in error by more
than
1/30 inch, measured on
the publication
scale; for maps on publication scales of1:20,000 or smaller, 1/50 inch.
These limits ofaccuracy
shall apply in all cases to positions ofwell-defined
points
only.
Well-defined points
are those
that
are easily visible or recoverable on the
ground, such
as the following: monuments or markers,
such
as
bench
marks,
property
boundary
monuments;
intersections
of roads, railroads,
etc.;
corners
oflarge buildings orstructures (or center
points
ofsmall buildings); etc.
In general what
is well definedwill be determined by what is plottable on thescale ofthe map within
1/100 inch.
Thus while the
intersection oftwo road or property lines meeting at right angles
would come
within a sensible interpretation, identification ofthe intersectionofsuchlines meetingatan acute
angle
would obviously not be practicable
within
1/100 inch.
Similarly, features not identifiable
upon the
ground within close
limits
are
not to
be considered
as test points
within the
limits
quoted, even though theirpositions may be scaled closely upon themap.
In this class would come
timber lines, soil boundaries, etc.
2.
Vertical accuracy, as applied
to contour maps on
all publication scales,
shall be such
that
not
more
than
10 percent ofthe
elevations tested
shall
be in error more than one-halfthe contour
interval.
Inchecking elevationstakenfroin the
map,
the apparent vertical error may be decreased
by assuming a horizontal displacement within the permissible horizontal- error for a map ofthat
scale.
3.
The accuracy ofany map maybe tested
by comparing the positions ofpoints-whose locations
orelevations are shown upon itwith correspondingpositions as determined by surveysofa higher
accuracy.
Tests shall be made by the producing agency, which shall also determine which ofits
maps
are to
be tested,
and
the extent of the
testing.
4.
Published maps meetingthese accuracyrequirements-shall-note
this
fact on their legends, as
follows: “This map complies with National
Map
accuracy Standards.”
5.
Published
maps
whose errors exceed
those
aforestated
shall omit
from
their
legends
all
mention ofstandard accuracy.
6. When a published
‘map is a considerable enlargementofa map drawing (m-anuseript) or ofa
published map, that fact shall be stated in the legend.
Forexample, “This map is an enlargement
ofa 1:20,000-scale map drawing,”
or “This
map
is an enlargement ofa 1:24,000-scalepublished
map.”
7.
To facilitate ready interchange and use of basic information for map construction among
all Federal mapmaking agencies, manuscript maps
and
published maps, wherevereconomically
feasible and consistent with
the
uses to which the
map
is to be put, shall
conform:to lativideand
longitude boundaries,being
15 minutes of
latitude and
longitude,or 7.5 minutes, or3-3/4 minutes
in size.
Issued June 10.
1941
U.S. BUREAU OF THE BUDGET
Revised
April26.
1943
-
Revised June 17.
1947

EXHIBIT IV
-
Marquette Heights Resolution
53

‘~je
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54

O41~l/2@~4 1@:42
13S9b827l~-Q
-
VILLAGE PEORIA ~TS
PAGE
C2.
CflY
OF MARQUtI
i~
HEIGHTS
715
LINCOLN
ROAD
MARQUETTE
HEIGHTS.
IL 61554
PHONE
(3093
382-3455
Earl Carter
Mayor,
Peoria Heights
4901 N.
Prospect
Road
Peoria
Heights,
Ii 61614
Re:
Increase
in setback/City of
Marquette
Heights
water wells
___________
Dear Mr.
Carter:
-
The
City
of
Marquette
Heights
(the
“City”)
owns
and
operates two
separate water wells
located in
North
Pekin. Those wells lie
in close
proximity
to petroleum
terminals
currently
owned
by
B~tish.~trolewn,
success9r to Amoco Oil Company (“Amoco”).
At
various times
Amoco
and
its
predecessors were responsible
for
unlawful
discharges ofpetroleum
products
into
the soil.
These discharges resulted in
the
contamination
of ground water immediately adjacent to the
terminal and in
close,
proximity
to
the water wells operated by
the
City.
In 1990 the Attorney
General filed suit
against Amoco. T.flthnately, the
Attorney
General reached an
agreement
with
Amoco under
the
terms
of
which
Amoco agreed
to
implement a
“Corrective Action Plan” which
was
designed
to remediate the
conditions created as a result of
the
unlawful discharges.
It
appears,
however,
that
Amoco may be
in a position to
circumvent
the
terms and conditions ofthe
Corrective Action Plan unless
the
Illinois
Environmental Protection Agency (“EPA”)
petitions
to
increase
the setback from the existing wells
operated
by the
City.
In
order to increase the
probability that the Corrective Action Plan will be fully
implemented,
the City has asked the
IEPA
to petition
the PollutionControl Board to
increase the setback which establishes
the water
supply protection
area
for those wells from 400
feet
to 1,000
feet.
More details concerningthis
situation are set
forth
in the preambles to a resolution
recently
approved by the
City
Council of
the City, a copy of which I have enclosed for your
review.
Representatives ofthe
IEPA
have
suggested that
support
from
the
Central Regional
-
Groundwater Planning
Committee could
help to motivate
the
Pollution Control Board to
approve
an increase in the setback to
1,000
feet.
I
am, therefore, on
behalf
of the
City
of
Marquette
Heights requesting
that
the Central Regional Groundwater Planning
Committee support
any effort
undertaken
by
the
EPA
to increase the setback from the City’s wells
to
1,000 feet.
In particular,
I
askthat your
committee
consider a proposed resolution, a copy of which I have enclosed
herewith. .J
asic
that a representative
of the
committee
advise me as
soon
as possible whether or,
not the committee will
support
the proposed resolution. Ifthe
committee
will
support
the
proposed resolution,
I
ask
that
upon
approval ofthe
resolution, the committee
forward a
signed
original
of the resolution
to me.
I will
assume
responsibility for delivery of that resolution to the
IEPA. In
the
meantime
should you
have any
questions, comments, or suggestions concerning this
matter,
please do not hesitate to
contact me.
V
truly yours
David Redfield, Mayor
City ofMarquette Heights
EXHIBIT
“7

04i01/2004
10:42
130~”’27l29
VILLAGE PE’~IAHGTS
PAGE.
03
RESOLUTION NO.
~
Marquette Heights, Illinois
-
March
22
,,,~2004
RESOLUTION
REQUESTING
THAT
THE
ILLINOIS
ENVIRONMENTAL PROTECTION
AGENCY
PROPOSE A
REGULATION
TO INCREASE THE SETBACK ZONE
WHICH ESTABLISHES
A WATER
SUPPLY PROTECTION AREA
FOR THE
COMMUNITY
WATER
SUPPLY
OF
THE
CITY OF
MARQUETTE
HEIGHTS
WHEREAS,
the
City
of
Marquette
Heights
(the
‘City”)
currently
owns
and
operates
a
community water supply (the ‘Water System”) for the purpose of providing an adequate and safe
supply of water to residents of the City;
and
WHEREAS, n
terb~arirrg
deposits capable
ofsuppl~ng
an adequate and safe supplyof
water to residents of the City lie within the current corporate limits of the
City; and
WHEREAS, the
City supplies water to the Water System from two wells (the “Existing Wells”)
located in close proximity to each other within the corporate limits of theVillage of North Pekin; and
WHEREAS, in the event that the water drawn from the Existing Wells became corttamlnated,
the City would
have no
cost effective means of securing
a replacement source
of water; and
WHEREAS, in
1990 Amoco Oil Company (“Amoco”) owned and operated a bulk storage and
distribution
terminal
(the “Amoco
Facility”)
used
to
store gasoline,
fuel
oil
and
other
petroleum
products;
and
WHEREAS,
in
1990 Mobil
Oil Corporation (“Mobil”) owned
a bulk storage
and distribution
terminal (the “Mobil Facility”) used
to stare gasoline,
fuel oil and other petroleum products;
and
WHEREAS,
the Amoco Facility is contiguous
to the Mobil Facility: and
WHEREAS, in
1990 Amoco operated the Mobil Facility and, subsequently,
in
1993 Amoco
acquired
the Mobil Facility; and
WHEREAS,
the boundaries of the Amoco Facility and the Mobil Facility lie within 2,000 feet
of the wellheacls of the Exiting Wells; and
WHEREAS, in
1990 the State of Illinois initiated litigation in
Tazewell County Circuit Court at
Case No. 90 CH 79
(the “Amoco Litigation”) alleging that Amoco and/or Mobil had at various times
unintentionally discharged
petroleum
products
into
the
soil
at
the Amoco Facility and
the
Mobil
Facility
in
violation
of
the
Illinois
Environmental
Protection
Act
(the
Act”) found at 415
ILCS 5/1, at.
seq.; and
WHEREAS,
on
May
17,
1999,
the Tazewell
County
Circuit
Court entered
an
order
(the
~ConsentOrder”) which concluded the Amoco Litigation; and
-
-
WHEREAS,
the
Consent Order incorporated
by
reference
a
corrective
action
plan
(the
Corrective Action
Plan”)
designed
to
remediate
the conditions
created
when
AmocO
and
Mobil
violated
the Act; and
-
WHEREAS,
the
Corrective
Action
Plan
is designed
to
bring
about
removal
of
harmful
quantities of the material deposited
into the soil as
a result of the activities of Amoco and Mobil; and

I~4/~1/2@e41~:42
13O969271.~q
-
.—
—.‘~
-
-‘--“—‘.-----
-
,-1
=
,-s
ri
~
=
I—
;
r—
J
VILLAGE PEO~IA‘‘TS
PAGE
~4
WHEREAS,
the current setback of 400 established for the Existing Wells is inadequate to
insure that
the Corrective Action
Plan
wilt be fully implemented
in
accordance with
its
terms and
conditions; and
WHEREAS, the Source Water Assessment provided bythe Illinois EPA indicates low levels
of organic contaminants
have been found
in
and proximate
to the
City’s wells;
and
WHEREAS, the Source Water Assessment provided by the Illinois EPA indicates there are
22 sites that could pose a potential hazard to the City’s water supply; and
WHEREAS, because the Existing Wells lie within the corporate limits of the Village of North
Pekin, the City has no authority
to increase the setbacks for those wells;
and
WHEREAS,
the
Act
authorizes
the
Illinois
Environmental
Protection
Agency
(“IEPA”)
to
petition the Illinois Pollution Control Board (the‘Pollution Control Board”) to adopt e regulation which
would increase the setback for the Existing Wells
up
to a distance of 1,000 feet; and
WHEREAS, the Existing Wells constitute both a sole source of public
water
Supply for the
City
and a highly vulnerable source of ground water, both of which conditions justify an
Increase in
the setback
of
the
Existing Wells to the maximum of 1,000
feet;
NOW,
THEREFORE,
BE
IT
RESOLVED
BY THE
CITY
COUNCIL
OF
THE
CITY OF
MARQUETTE HEIGHTS, TAZEWELL COUNTY, ILLINOIS,
THAT:
Section
1.
The
foregoing recitals
are hereby adopted
and found
to be correct.
SectIon 2.
The City hereby requests that the IEPA propose
to the Pollution Control Board a
regulation establishing
a maximum setback zone forthe Existing Wells
of 1,000 from the well heads.
SectIon 3.
The
Mayor is hereby authorized and directed to submit a copy of this resolution
to
the
Central
Regional
Groundwater
Planning
Committee
with
a
request that such
committee
supportthe request of the
City
thatthe setback from
the
Existing Wells
be established at 1,000 feet.
Section
4.
The Mayor
is hereby authorized to the extent he deems necessary to direct the
City Engineer,
the
City
Attorney and employees
of the
City to
support
any effort undertaken by the
IEPA
to
increase the setback zones from the Existing Wells.
SectIon
5.
The
City
Clerk
is
hereby
authorized
and
directed
to
immediately
submit
a
certified
copy of this
resolution to the
IEPA.
ATTESTS
City Clerk

EXHIBIT V
Source Water Assessment Program Fact Sheet for the City of Marquette
Heights, Tazewell County, Illinois
55

EXHIBIT
IllinOis
EnvIronmental
USGS
science(era
changmg
world
Protection Agency
Source Water Assessment Program
FA
.I-TSHEET
MARQUETTE HTS
TAZEWELL COUNTY
Prepared in cooperation with the U.S. Geological
Survey.
Information and data used
in
the preparation
of this Fact Sheet are provided by
the
Illinois
EPA and are
subject to revision.
IMPORTANCE OF SOURCE
WATER:
The City of Marquette
Heights
(Facility Number
1790400) utilizes two
active community
water supply wells. Wells
#4 and
#5
(Illinois
EPA #50280
and 50281,
respectively) supply
an average of240,900
gallons
per
day
(gpd)
to
1,006
direct services and
41
satellite services or
a populationof3,200.
Large consumers
include Briarwood
Subdivision.
WATER SUPPLIES THAT OBTAIN SOURCE WATER FROM THIS FACILITY:
No connected water supplies existed at the time
this Source
Water Assessment fact sheet
was
completed.
SOURCE OF WATER SUPPLY:
Wells
#4
and
#5
are located
in
two
pump houses
east
of route
29 and west of Main
Street.
Both wells produce
approximately
450
gallons
per
minute
(gpm).
Well #2
is no longer used asa source of
water and
has
been reported
as properly abandoned.
Wells #1
and
#3
are
listed
as inactive.
Wells #4
and
#5
are
95
and 94
feet in depth,
respectively.
The wells obtain their source water from a shallow,
permeable sand and gravel aquifer.
Permeability
is the
meaure of the capability of a soil or sediment to transmit fluids.
These wells are considered geologically
sensitive by the Illinois EPA.
WELL
DATA FOR THIS FACILITY:
~.WelI•ID
~.
~
~
I
statui:IDepth~
(FeÔt)~in
Setbaok~(Feet)j-AquIferDescriptlon
WELL471OFTWNWOFWrP
~.
A
~.
95
400
Sand&Gravel
50280
50281
WELL53OFTWOFWELL4
A
94
~.
400
1,
Sand&Gravel
SOURCE WATER QUALITY:
Wells
#4
and
#5
were sampled beginning on June
15,
1987
as part of a
Statewide Groundwater Monitoring
Program.
The wells were sampled
and analyzed for
inorganic chemicals (lOC)
and
volatile organic compounds
(VOC).
.
-
Inorganic analyses indicated that parameters are consistent with other sand and gravel
aquiferofsimilar character in
this
part
of Illinois.
It is
important
to note that the
LOC results were below the groundwater quality
standard~
established under 35
Illinois Administrative
Code Part 620.4 10.
VOC analyses have shown one detection of 1,1,1-trichloroethane in well
#5
of 6.4 parts
per
billion (ppb).
The
groundwater quality
standard for
1,1,1-trichloroethane established under Part 620.410 is 200 ppb.
In addition, a
groundwater assessment was conducted by Amoco/Mobil Oil
Co.
to determine the extent of impacts to the aquifer
V

by recent
and historical spills
at both the Amoco and Mobil
Petroleum Terminals north ofthe Marquette
Heights
wells.
This investigation disclosed that a floating product layer was encountered on-site. The investigation also
found a plume of dissolved gasoline constituents extending to the southwest.
The latter includes
benzene, toluene,
xylene, ethylbenzene, and MTBE.
North Pekin has a community
water supply well adjacent to this
area.
Marquette
Heights’ wells are
located just east of the North Pekin well #1.
Off-site contamination of groundwater was found
in
monitoring wells
within the minimum setback zone of North Pekin well #1.
Unconfirmed results from
an
independent
laboratory
on May 9,
1990 quantified
2
micrograms per liter of MTBE
in the Village of North Pekin
well #1.
-
FINISHED
WATER QUALITY:
As
referenced in the Source Water Quality Section ofthis
report, the Marquette Heights
community
water supply
has mineralized groundwater.
Sampling
performed
after treatment shows no detections of any VOC.
Further
information on finished water quality data, tables of monitored parameters, contaminants detected, health advisory
information, drinking water standards,
and maximum contaminant levels is
available at
http://www.epa.gov/ogwdw/.
Similar information is also available
in the Consumer Confidence Report supplied by
the City of Marquette
Heights to
its customers.
POTENTIAL
SOURCES
OF CONTAMINATION:
The sites
labeled
on the Wellhead Protection Planning Map
and described in
the following tables are
“potential”
sources of contamination.
(Maps and tables
are not available
in the Visually Impaired Accessible version of this
fact sheet.
However, information
included in the maps and tables
are
summarized within the following text sections
of this fact sheet.)
These sites are predominantly
identified through the Illinois EPA’s Well
Site Survey
Program
based on the nature oftheir activity, the availability of data in electronic databases, and their geographic proximity
to the source water protection area.
In addition, the Illinois EPA
made use ofthe
information from
its leaking
underground storage tank database
(http://epadata.epa.state.il.us/land/ust/search.asp) and site remediation program
database (http://epadata.epa.state.il.us/land/srp/search.asp) to further
assess potential sources of contamination to the
source water.
These databases include
information from the Illinois EPA
Divisionof Land Pollution Control (LPC)
and the Illinois Emergency Management Agency (IEMA).
The following is
a list of facilities contained within these
databases.
JEMA #
Site Name-Address
20020427
Rocket Motor Freight Lines
1501
Edgewater Dr.
North Pekin
61554
921715
Gary Davis & Sons
RT.
29
North Pekin
61554
932220
Hight Sales &
Service
RT. 29 Wesley Rd.
North Pekin
61554
942410
North Pekin, Village of
318 North
Main
St.
North
Pekin
61554
980068
EHR Development
Rt.
29 &
Wesley
Rd.
North Pekin
61554
LPC#
Site Name-Address
1790555009
Rocket Motor Freight
Lines
1501
Edgewater Drive
North Pekin
61554
SITE DATA FOR THIS FACILITY:
Well ID
I
Map Code
I
-
Site_Name
Site Description
-
(Distance (Feeti
50280
23590
TOYOTA
DEALESHIP OFFCE BUI
OFFICE
1450
50280
23616
flOMMY HOUSE TIRES
COMMERCIAL APPLICATION_OR
1700
50280
23617
“Q” LUBE & AUTO CAR
&
CAR W
AUTO REPAIR
1450
50280
23588
~CITGO
GAS
STATION
rBELOw GROUND STORAGE (PET
1200
50280
23589
!HIGHTS AUTO SALES
AUTO REPAIR
1100
-
50280
5
PUTO REPAIR
06444
!MAURICE DAILY TRANSPORT CO
BELOW GROUND
STORAGE (PET
350
--
50280
1000
-
50280
06443
MOBIL
OIL
CO
ABOVE GROUND STORAGE (PET
1300
-
50280
06445
JOMPCO.
STORAGE FACILITY HAZARDOUS
06451
SCHERER PONTIAC
BUICK
AUTO REPAIR
o6456
NORTH
PEKIN-FUEL STORAGE
BELOWGROUND
STORAGE (PET
750
50280
50
5028 0
825
50280
06457
KELLEY’S AUTO SALES
AUTO REPAIR
1100

WeIl ID.:
I
MaP Codé’I
“•‘•‘~~-~•“
SitéDescrintlon
~
.:-.::IDistance (Feet)
50280
50280
50280
50280
50280
50280
50280
06453
MARQUETTE HEIGHTS-INACTIVE ABANDONED OR IMPROPERLY P
650
06458
~1CE’S VW & FOREIGN
AUTO
P
~AUTO
REPAIR
1450
-.
06455
j~RTHPEKIN-FUEL
STORAGE
4BELOW GROUND STORAGE(PET
-
900
06452
CASEY’S
GENERAL STORE
BELOW GROUND STORAGE (PET~
500
06454
~
750
06450
-
TOYOTA
BELOW GROUND STORAGE (PET
775
06449
LUFT
VOLKSWAGON
IA~UTOREPAIR
775
06448
~AN
TRANSPORT
~JSTORAGE
FACIlITY HAZARDOUS
1200
06447
HIGHT AUTO SALES
& SERVICE
IBELOW GROUND STORAGE (PET
-
-
1500
-.
06446
$~ARKWAYDODGE INC
AUTO REPAIR
350
50280
50280
50281
50281
50281
50281
23590
TOYOTA DEALESHIP
OF!
~E_
23587
LANDMARK DODGE
~UTO REPAIR
23617Tã’
LUBE & AUTO
CAR & CARW
1AUTO REPAIR
—~
1450
350
1450
-
1700
23616
ftOMMYNOUSE TIRES
-
jc9MMERCIAL APPLICATION OR
50281
23589
HIGHTS AUTO SALES
AUTO_REPAIR
1100
1200
750
-
-
1000
-
1300
800
800
1200
530
1500
675
350
775
50
-
825
-
1100
1450
900
-
50281
23588
CITGO GAS STATION
BELOW GROUND STORAGE (PET
50281
06445
TOMPCO____
ISTORAGE_FACILITY_HAZARDOUS
50281
06444
LMAURICE
DAILY TRANSPORT
COBELOW
GROUND STORAGE (PET
5028 1
06443
oBtCo
ABÔ~
GROUND STORAGE (PET
50281
.
06450
TOYOTA
IBELOW GROUND STORAGE (PET
50281
06449
L~fl~(SWAGON
-~
JAUTO REPAIR
50281
06448
RUAN TRANSPORT
STORAGE
FACILITY HAZARDOUS
50281
06452
CASEY’S
GENERAL STORE
JBELOW GROUND STORAGE (PET’
50281
06447
HIGHT AUTO
SALES
& SERVICE
IBELOW GROUND
STORAGE
(PET
50281
06453
MARQUETTE HEIGHTS~INACTlVE
ABANDONED OR IMPROPERLY P
50281
06446
PARKWAY DODGE INC
AUTO REPAIR
50281
06454
MARQUETTE HEIGHTS-INACTIVELABANDONED
OR IMPROPERLY P
50281
06451
“~CHERER
PONTIAC BUICK
AUTO
REPAIR
50281
06456
NORTH PEKIN-FUEL STORAGE
BELOW GROUND STORAGE (PET
5028106457
~KELLEY’S
AUTO SALES
AUTO
REPAIR
50281
06458
PRICE’S VW & FOREIGN AUTO
P
AUTO REPAIR
5028106455
NORTH PEKIN-FUEL STORAGE
~ELOWGROUND STORAGE (PET’
OTHER IDENTIFIED POTENTIAL SOURCES:
For this
community water supply, no additional potential sources of contamination have
been identified beyond
those
in Illinois EPA databases.
SUSCEPTIBILITY TO CONTAMINATION:
To determine Marquette Heights’ susceptibility to contamination, a Well Site Survey, published by the Illinois
EPA
in
1990, was reviewed.
Based
upon this
survey, there
are
22 potential sources of groundwater contamination that
could pose a hazard to groundwater utilized by
Marquette Heights’ wells. These include
1
above ground fuel
storage
tan, 6 below ground
fuel
storage tanks, 2 hazardous waste
storage facilities,
9 auto repairs, 2 abandoned or
improperly plugged wells, I office, and
I commercial application of pesticides facility.
In addition, information
provided by
the Leaking Underground Storage Tank and Remedial Project Management Sections of the Illinois EPA
indicated additional
sites
with on-going remediation which may
be of concern.
Based upon this information, the Illinois EPA has determined that the Marquette Heights community water supply’s
source water is susceptible to contamination.
As such, the Illinois EPA has provided
5-year recharge area
-
calculations for the wells.
The land use within the recharge area of the wells was analyzed
as part of this
susceptibility determination.
This land use includes residential, industrial, and
commercial properties.
SOURCE WATER PROTECTION EFFORTS:
The Illinois Environmental Protection
Act provides minimum protection zones of 400 feet forMarquette
Heights’

wells.
These minimum protection zones are regulated by the Illinois EPA.
To further reduce the risk to the source
water,
maximum protection zones may be~nacted. These maximum protection zones, which
are authorized by the
Illinois Environmental Protection Act, allow county and municipal officials the opportunity to provide
additional
source prohibitions up to
usually 1,000 feet from
their wells.
To furtherminimize the risk to the city’s groundwater supply,
the Illinois EPA recommends that the following
additional activities by
considered.
First, the water supply staffmay want to develop a contingency plan.
Contingency
planning documents are
a primary means to ensure that, through emergency preparedness,
a
community
will
minimize their risk of being without water.
Second, the water supply staff is encouraged to review
‘their cross connection control
ordinance to ensure that
it
remains
current and
viable.
Cross connections to either the
water treatment plant
or
in the distribution system (for example, atbulk water loading stations) may negate all
source water protection initiatives.
Third,
inactive wells #1
and #3 are
potential routes of contamination.
It is
recommended thatthe facility either properly abandonthe wells or retro-fit them for use.
Fourth, it is
recommended
that the screens
on wells
#4 and
#5
be
replaced as noted
in the engineering
evaluation dated January
17, 2001.
Finally, the Illinois
EPA recommends that the city investigate additional source water protection management
options to address the land use activities
within the community
wells’ recharge
areas.
To further reduce the risk to
the source water, Marquette Heights may wish to implement awellhead protection program which includes the
proper abandonment ofany potential routes of groundwater contamination within the recharge areas and correction
of any
sanitary defects at the water treatment facility.

t~
Potential
Sources Of Contamination
/VRai1s
,/\/Roads
-
IV
Sfreams
____
Minimum
Setback
Zone
____Existing
or
Potential
____
Maximum
Setback
Zone
Recharge Area
FOR MORE
INFORMATION
CONTACT:
Groundwater Section, BureauofWater
illinois Environmental Protection
Agency
-
lO2lNorthGrandAvenueEast
-
Springfield, IL 62794-9276
-
Pb#
(217)785-4787
Source Information
-
Roads, Rails, and Streams fromIllinois DNR.
CWS
Wells and
Potential Sources from Illinois
EPA.
Map compiled
by
Groundwater Section, illinois EPA.
WELLHEAD
PROTECTION PLANNING MAP
FOR
MARQUETTE
BIEIGHTS (FACILITY #1790400)
-
500
0
500
1000
I500Feet
Legend
CWS Wells

STATE OF ILLINOIS
)
COUNTY OF
SANGAMON
)
)
PROOF
OF SERVICE
I, the
undersigned,
on oath state that
I have served the attached Written Testimony
of
Richard
P.
Cobb, P.G. upon the person to whom it is directed, by placing a copy in an
envelope addressed to:
Dorothy Gunn,
Clerk
Illinois Pollution Control Board
James R. Thompson Center
100W.
Randolph, Suite 11-500
Chicago, Illinois 60601
General Counsel
Illinois Department of Natural Resources~
One Natural Resources Way
Springfield, Illinois 62702-1271
Service List
Matthew Dunn, Esq.
Environmental Bureau Chief
Office of the Attorney General
James R.
Thompson Center
100 W. Randolph,
12th
Floor
-
Chicago, Illinois 60601
Richard
R. McGill,
Jr.
Ill. Pollution
ControlBoard
James R.
Thompson Center
100 W. Randolph, Suite 11-500
Chicago, illinois 60601
and mailing it from Springfield, Illinois
on
MA~
~?/.
~Q~3~with
sufficient
postage affixed.
-
-
U
SUBSCRiBED
AND SWORN TO BEFORE ME
This~\
dayof~j4N\cLr~7)
,2005.
:~
Notary Public
OFFICIAL
SEAL
BRENDA
BOEHNER
NOTARY
PUBLIC.
STATE
OF
ILLINOIS
MY
COMMISSION
EXPIRES
fl.i4-2005~

Printing Service List....
Page
1 of
1
Party
Name
Role
City
& State
Phone/Fax
i~PA
1021.
North
Grand
Avenue
East
Springfield
217/782-5544
Petitioner
P.O.
Box 19276
IL
62794-9276 217/782-9807
Kimberly
A.
Geving, Assistant Counsel
Stephanie
Flowers, Attorney
Office
of the Attorney General
Environmental
Bureau
Chicago
312/814-2550
Interested
Party
100 West
Randolph
Street,
11th Floor
IL
60601
312/814-2347
Matthew
3.
Dunn,
Chief
Illinois
Pollution
Control
Board
100
W.
Randolph
St.
Chicago
312/814-3956
Interested
Party
Suite
11-500
IL
60601
Dorothy
M.
Gunn,
Clerk
of the
Board
Richard
McGill, Hearing
Officer
Department
of Natural Resources
Springfield
217/782-1809
One
Natural Resources Way
IL
62702-1271
217/524-9640
Interested
Party
General Counsel
Total
number of participants:
6
http://www.ipcb.state.iLus/cool1extemalIcasenotifyNew.asp?caseid~75
84&notifytype=Ser...
-
1/21/2005

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