HomeMy Public PortalAbout11.11.82 VB Public Hearing MinutesVILLAGE Off' PLAINFIELD
Step 1 -- Facility Plan for Wastewater Treatment Systems
Project C-172552
Public Hearing
DATE: November 11, 1982
PRESENT WERE: Representing the Village: Mayor Selfridge, D. Lambert, L. Robinson,
G. Ansley, J. King, C. Smith, J. West, E. Gordon, A. Singh
A. Hothan, 1409 N. Naperville/Plainfield Road; J. Robinson, 806 North
Division; W. McElwaine, 30 Oswego Ct., Oswego; G. R. Kreis, Shorewood;
B. McCormick, 5 N. Pratt Lane
The hearing was called to order at 7:30 p.m.
Eugene Gordon was requested to distribute the Plan Fact Sheets to everyone in atten-
dance and read its contents. (see Exhibit "A".)
The Mayor entertained questions from the audience.
B. McCormick stated: The assessment rate will be made up at $3.43 per $1,000. My
house increased by $5,000 valuation. r don't know how much my assessment will increase
in the future. So how much will I have to pay in the end?
A. Sinc~,Project Engineer, responded: Costs are based on $1,000 assessed valuation.
. I don't know what the future will bring. These costs are based on $1,000 valuation.
J. King questioned. the cost of water today. A. Singh responded: $.64 per 100 c.f.
with recommended charge to be $.80 toda,T.
G. R. Kreis, representing Kerr Glass, stated his additional cost would be approximately
$1,000~/month under this plan.
C. Smith questioned the projected 11,200 new persons coming into the area.
G. Ansley suggested a smaller population should be planned for.
J. King stated by the year 2000 we are to have a zero population growth.
E. Gordon responded these figures go beyond the current Village limits.
L. Robinson commented: Someone previously provided for us, we should also provide for
future generations.
B. McCormick questioned if he would be able to afford living in the Village and in
Illinois if these fees and taxes continue to increase.
G. Ansley stated: It is up to the people to decide which way to go and how to finance
this project. It is up to the voters to accept or reject the project.
A. Hothan remarked: I understand your operation and maintenance costs, does it in-
elude replacement costs as well? A. Singh: No! Did the Board consider a modular
method of construction? C. Smith stated there is not much difference in the overall
cost.
VILLAGE OF PLATNF~ELD
November 11, 1982
Facility Plan for Wastewater Treatment Systems
Public Hearing
Page two.
G. Ansley stated the original system was designed for 10,000 people, conservatively
7,500 people, and can't understand why the present system won't handle the current
population. A. Singh stated that the infiltration/inflows account for most of the
flows thus reducing the capacity of the plant.
J. King questioned the cost figures on page 2, phase 1 & 2; are there additional
costs that we don't know about yet? A. Singh responded: These .costs include
everything except the cost of collectors and service lines to houses from the
street» J. King stated: This is then just a partial cost.
C. Smith questioned if homes with their own septic and wells would be required to
hook-on to the Village system. It was. responded that it depended upon the developer,
the land and soil conditions of the area in question.
The Mayor asked if there were any additional questions and/or comments. No one
responded.
Hearing was adjourned at 8:30 p:m»>
C~
James E. West, Deputy Village Clerk
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FACT SHEET FOR PUBLIC HEARING
PLAINFIELD FACILITX PLAN
PROJECT C172552
The Village of Plainfield, in its capacity as the designated management agency
far the Construction Grants Program, initiated Step 1 Facility Planning in October,
1979. The Facility Flan Area is bounded by 127th Street to the Narth, Caton Farm
Road to the South, I-55 to the East, and Shiner Road to the West, encompassing an
area of approximately 23 square miles. These boundaries were established by the
Illinois Environmental Protection Agency upon the recommendation of the Northeastern
Illinois Planning Commission (NIPC), a regional playing agency which has jurisdic-
tion fox the Z08 Areawide Water Quality Management Plan.
Briefly, the results of the Step 1 investigations are as follows:
PRESENT CONDITIONS
Average Dry Weather Flaw - 0.673 M®
Average Wet Weather Flow = 1.258 MGD
Average Daily Flow (12 months) - 0.950 MGD
Existing Plant Capacity = 0.750 M®
Based on a 5 year rainstorm during wet conditions, the flows are:
Base Flow -- 0.600 MGD
Infiltration - 1.150 MGD
Inflow = 1.200 MGD
TOTAL FLOW - 2.95 M®
AFTER recommended rehabilitation, the present flows can be reduced to:
Base Flaw - 0.600 MGD
Nan-Extraneous Infiltration -- 0.880 M®
Non-Extraneous Inflow - 0.620 M®
TOTAL FLOW _ 2.100 MG17
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FUTURE (Year 2000).
The Northeastern Illinois Planning Commission (NIPC) projects the Year 2000
Planning Area Population at 17,220. Of this, 15,000 is estimated to be serviced by
sewers. Based on this, the following flows can be estimated:
Base Flow = 1.80 MGD
Non-Extraneous Infiltration = 0.88 MGD
Non-Extraneous Inflow = 0.62 MGD
TOTAL FLOW = 3.300 M®
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To summarize, if we assume no future growth, the existing needs call far a
treatment plant to handle 2.10 N1GD capacity. If growth is assumed by a popula-
tion of (15,000-3,800) 11,200 new persons, then the treatment capacity should be
3.30 MGD. The assumption of future growth has been used in the facility plan and
therefore the cost estimates are based on the future flow of 3.30 MGD.
To service the design load needs, various treatment altexnatives such as
land applicaticn, Oxidation Ditch, Rotating Biological Cantactars, Trickling Fil-
ters, etc. were considered and evaluated based on monetary and environmental con-
siderations. The Facility Plan reconur-ends the fallowing:
3) Construction of Interceptors.
ll Expansian of the existing treatment plant to 3.30 M® utilizing the
Activated Sl>>dge process train.
2) Rehabilitation of the existing sanitary sewers to reduce Infiltration
and Inflows.
Estimated capital costs, which includes construction costs, contingencies,
engineering fees, legal fees, financing and administrative costs, are as follows:
PHASE 1. EXPANSION OF TREATMENT PLANT AND REHABILITATION COSTS [MILLION $)
Total Cost Federal Share Local Share
C
Expansion of treatment plant $ 6.939
$ 5.204 $ 1.735
Rehabilitation of sanitary sewers 0.606
TOTAL CAPITAL COST $ 7.545
PHASE 2. INTERCEPTORS/PUMP STATIONS
Total Cost of Interceptors/Pump Stations
Grant Eligible Portion
Grant Ineligible Portion
Federal Share of Cost
Local Share of Cost
0.466 0.140
$ 5.670 $ 1.875
$ 4.108 Million
$ 4.032
$ 0.076
$ 3.024 Million
$ 1.084 Million
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LOCAL FINANCING
PRASE 1. Amount Financed = $1.875 Million
It is expected that the Village wilt finance their share of capital costs
by issuing a combination of General Obligation Bonds and Revenue Bonds. Tenta-
tive breakdown of $1 million by GO Bands and $0.875 million by Revenue Bonds is
suggested; however, the exact breakdown wi11 be determined at a later date by
the financial consultant.
Assuming ZO year GO Band at 9% interest; the annual cost would be $109,550.
This can be recovered through taxes at an assessment rate of $3.43 per $1000
assessed valuation. The yearly tax on a typical $45,000 house assessed at $15,
000 computes to $51.45 per year based on $3Z million assessed valuation for the
entire Village. The debt serrrice on Revenue Bond (10%, Z.0 years maturity) is
$103,000 and can be retired by revenues generated by user charges. The debt ser-
vice for the Revenue Bond is estimated at $O.ZB per 100 CF of water usage.
PHASE 2. Amount Financed = $1.084 Million.
The local share can be financed by a combination of special assessments, GO
Bond, User Charges and contributions from developers seeking Village water and
sewer services. The exact vehicle far funding the local share is to be determined
by the financial consultant prior to the start of Phase 2. Again, assuming 20 year
bonds at 9% interest, the annual debt service is estimated at $118,800.
ANNUAL OPERATION AND MAINTENANCE COSTS
The annual operation and maintenance cost excluding depreciation is estimated
at $308,000, and debt service at $103,000 for the Phase 1 revenue bond portion of
financing. This gives an annual 0 ~ M cost of $411,000.
MONTHLY CHARGES (1984
Assuming the average dry weather domestic, commercial and industrial flaws
to the plant at 0.75 MGD, the anticipated user charges for defraying the operation
and maintenance costs are as follows:
Cost per 100 CF of water used = $1.13
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TYPICAL USER C~ BARGE
Per (:quarter Per Alanth
Average Family Residence (2000 CF/Quat.) ~ 22.60 ~ 7.54
Small Family Residence (1400 CF/goat.) 15.82 5.27
COlviv'ECTION CHARGE
The connection charge fax sanitary sewer will reflect costs associated with
the cost of the existing plant plus the cast of expansion. The puxpase o£ using
the above criteria is to distribute costs in an equitable manner so that the present
users are not subsidizing for residents who decide to connect at a later date. These
costs will be detailed at the Step 2 stage when better estimates of construction
would be available.
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