HomeMy Public PortalAbout04.12.99 COW Agendar
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VILLAGE OF PLAINFIELD
WILL COUNTY'S OLDEST COMMUNITY
WORKSHOP OF THE PRESIDENT AND BOARD OF TRUSTEES
HELD ON MONDAY, APRIL 12,1999
AT THE VILLAGE BOARD ROOM
530 W. LOCKPORT STREET, SUITE 206, PLAINFIELD
7:00 P.M.
1) CALL TO ORDER, ROLL CALL, PLEDGE
2) MINUTES - Workshop Monday, February 8, 1999
Richard A. Rock
PRESIDENT
TRUSTEES
Jay D. Darnell
Jeffrey Dement
Kathy O'Connell
Steven L. Rathbun
Raymond Smolich
Kurt Stalzer
Susan Janik
VILLAGE CLERK
3) DEVELOPMENT CONCEPT PLAN. Local developers have assembled a sizeable portion
of land between 127th Street south to beyond 135th Street and from Heggs Road west
beyond Stewart Road. This mixed use development will have a seven to ten year buildout
and incorporates various neighborhoods offering a mix in housing opportunities. The
developers at this point have prepared a simple concept plan and prior to compiling the
required engineering and detail study elements, they have asked for basic review by the
elected officials at a public meeting. Attached is a concept map.
4) RADIUM COMPLIANCE PLAN. Last year the Village employed the engineering firm
of Baxter and Woodman to prepare an analysis of the costs and options for compliance with
the predicted Radium standards. Enclosed is a copy of that study. Representatives from
Baxter and Woodman will be at the meeting. Attached to this Agenda is an Executive
Summary.
5) ANY OTHER BUSINESS.
DEFERRED ITEMS
Downtown Competition Implementation
TIF District Implementation
Sewage Treatment Plant Expansion
Traffic Signal Location Plan
Train Station Relocation
I-55 Connection Feasibility
Joint Meeting with Plan Commission
Infrastructure Maintenance Fee
Economic Incentive Target Areas
23145 W. LINCOLN HIGHWAY • PLAINFIELD, ILLINOIS 60544 - (815) 436-7093 • Fax (815) 436-1950
EXECUTIVE SUMMARY
This report analyzes the capability of the Village of Plainfield's water supply to
provide safe, clean water in sufficient quantities to meet the present and future water needs of
the Village. This report serves as the primary planning document required by the Illinois
Environmental Protection Agency for participation in the Illinois Safe Drinking Water Act
Revolving Loan fund. It is also intended to be an effective planning and educational tool for
the Board of Trustees and the citizens of Plainfield.
The report -begins with an overview of radium compliance issues, the Plainfield
community and water system, project goals, and compliance schedules. The potential
alternatives for achieving compliance are then reviewed in detail, and selected system wide
strategies are developed. Possible financing methods are then presented and the resultant
so water rates are developed for each alternative. After discussing the recommended
alternative items remaining to achieve compliance are listed and a project schedule is
presented.
The goals for this project have been identified as follows:
1. Provide a safe, clean, aesthetically pleasing water to the community.
2. Conform to state and federal water quality regulations.
3. Achieve compliance with the radium water quality regulations.
4. Achieve compliance not later than deadlines established by the IEPA.
5. Minimize the cost impact of compliance on the consumer as much as possible.
6. Achieve compliance in a manner that allows future growth of the water system at
a reasonable cost.
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i a listing of the significant findings, conclusions and
The following s g gn $ , ,
recommendations of this report:
■ The current average daily pumpage is 1.0 million gallons per day (mgd). The
historical maximum demand day utilized 2.2 mgd. Average and maximum day
demands in Year 2020 are expected to be 4.16 mgd and 8.32 mgd respectively.
■ The firm capacity of the existing wells is 1150 gpm, or 1.65 mgd. Thus, the
existing wells are not sufficient to meet the current maximum day demands.
Drilling two new water supply wells each with a capacity of approximately 725
gpm will be sufficient to provide sufficient water to meet Year 2000 maximum
day water demands.
■ Assuming Plainfield keeps all of the existing wells in service, constructs two new
wells, and provides the treatment needed to reduce the radium, there will still be a
need for additional supply sources in the future due to the projected rapid
population growth. One new well with a capacity of approximately 725 gpm and
with treatment facilities to remove radium will be required approximately every
four years to meet the projected water usage demand.
■ The water pumped from the wells generally exceeds the current interim radium
maximum contaminate level of 5 pCi/l (combined for both radium -226 and
radium -228).
■ Plainfield will likely be required to achieve compliance within two years of
promulgation of the final radium standard by the USEPA. USEPA is obligated to
complete its work by November 2000. Thus, Plainfield's compliance date is
projected to be sometime between November 2001 and November 2002.
■ Water systems taking corrective action to reduce radium concentrations can
choose from four primary alternatives: modification of existing well construction;
development or purchase of alternative sources of water; mixture of high and low
radium content water sources; and installation of appropriate treatment
technology.
■ Based on an examination of the alternatives, the most feasible means of meeting
the City's goals were determined to be:
Alternative 1: Deep Well Water With Conventional Ion -Exchange at Each Well.
Alternative 2: Deep Well Water With Conventional Ion -Exchange: Centralized
0 Treatment at Three Locations.
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0 Alternative 3: Deep Well Water with Lime Softening.
Alternative 4: Lake Michigan Water
Alternative 5: Kankakee River Water
■ The present worth of the costs to construct and operate the facilities reported for
each Alternative are listed below:
Summary of Present Worth Analysis
Present Worth Present Worth
Alternative Description 1 Ci/1 5 Ci/1
No. 1
Ion -Exchange at Each Well $18,171,000 $17,664,000
No. 2
Ion -Exchange at Three Locations $20,067,000 $19,581,000
No. 3
Lime Softening $38,902,000 $38,902,000
No. 4
Lake Michigan $33,325,000 $33,325,000
No. 5
Kankakee River $23,067,000 $23,067,000
iBased
on an evaluation and comparison of the cost-effectiveness, advantages, and
disadvantages, we recommend Alternative 1: Deep Well Water with Ion -
Exchange at Each Well. At the time this report was prepared, the Federal
Standards for radium were not finalized. The recommended alternative is to plan
for a possible future regulation of 1 pCi/1 for radium -228. Although the
improvements would be sized for the more stringent level, the facilities will
operate to meet the current regulations until the final standard is adopted. The
total capital cost of these improvements is estimated to be $14,992,000 in 1999
dollars projected over the next 20 years.
■ Some advantages of this alternative are that it is the least costly alternative to
implement, it will be easy to "phase-in" in a rapidly growing community, it
provides the Village with softened water and it is easy to operate and maintain. A
significant disadvantage of this alternative is that the long-term ability of the
sandstone aquifer to supply water to Plainfield and other communities is
questionable. It may be necessary to ultimately find a replacement source of
supply.
■ The recommended improvements can be implemented as a multi phased project.
Phase 1 as proposed would include the improvements required to supply and treat
water to meet existing water demands. The capital cost to provide treatment at
Wells Nos. 3, 4, and 5 is $2,926,000. The capital cost to drill and treat Wells Nos.
6 and 7 which are needed to meet Year 2000 demands is $4,022,000 Future
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phases of the project would include proposed new deep wells with treatment
facilities to meet future water demands. Before construction can begin on some
of the improvements, land will need to be purchased and/or easements will need
to be acquired. Table 29 shows a list of recommended improvements, the
associated capital costs, and the recommended phasing.
■ Using the existing and projected operating costs detailed in Section 6 and
assuming 40 percent of the borrowed funds will be provided through the IEPA
low interest loan program, water rates will need to be increased from the current
amount of $1.97/100 cubic feet ($2.63/1,000 gallons) to $3.63/100 cubic feet
($4.89/1,000 gallons) to fund the first phase of the improvements. Subsequent
phases are expected to be funded by connection fees and other sources of revenue.
■ There remain numerous items for the Village to complete prior to the award of an
Illinois Environmental Protection Agency low interest loan and the start of
construction of the water treatment facilities. These tasks are listed in Section 13.
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