ILLINOIS POLLUTION CONTROL BOARD
August
5,
1976
VILLAGE OF SENECA,
Petitioner,
v.
)
PCB 76—118
ENVIRONMENTAL PROTECTION AGENCY,
Respondent.
OPINION AND ORDER OF THE BOARD
(by Mr. Dumelle):
Petition for variance was filed by the Village of Seneca
on April
27,
1976.
The Petition requests a variance from Rule
962(a)
of Chapter
3, Water Pollution Rules and Regulations of
the Board, in order to connect 135 existing and unannexed
dwelling units and
58 now—vacant lots to the sewer system.
On May
6,
1976 the Board requested additional information
which was filed as an Amended Petition on June
1,
1976.
On
July 21, 1976 the Environmental Protection Agency filed its
recommendation.
No public hearing was held.
The Village of Seneca has an Imhoff—type primary treatment
plant and chlorinates the effluent from
it.
The sewage treatment
plant discharges into Rat Run Creek which has a 7-day-in-1O—year
low flow of zero and is a tributary to the Illinois River.
The
effluent requirements are 4 rng/l BOD5 and
5 mg/i suspended
solids.
The Village puts the present plant effluent at 65 mg/i
BODç and
52 mg/l suspended solids.
Based upon the connection
of
50
of the requested dwelling units,
the new effluent
concentrations are calculated to be 75.6 mg/i BOD5 and 66.6
mg/i suspended solids.
Seneca asserts that it has a Fiscal Year 1976 priority
of 231 and that its Infiltration-Inflow Analysis has been
submitted to the Agency.
This analysis has revealed
a need
for a sewer system evaluation survey to actually locate points
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of excessive infiltration and inflow.
The Village is said tobe
eliminating illegal downspout connections to the separate sanitary
sewer system.
The hardship to the Village of Seneca
Is
a loss of tax
revenues and tax base
if the variance is not granted.
The new
Commonwealth Edison Company nuclear generating station is being
constructed in Brookfield Township a few miles south of the
Village and is said to have
a tidirect economic impact”.
A
restriction on growth could result in difficulty in raising
the local portion of the funds required to become eligible for
a 75
construction grant for the needed sewage plant.
If
the
340 persons
(50
of the 680 total population involved)
are not
connected
to the sewer system,
some $14,000 per year in tax
losses will occur.
The Agency recommendation states that Seneca has had
connection permits denied to it since 1967.
It places the
contaminant reduction to be achieved by the primary plant at
33
for BOD5 and 50
for suspended solids compared to respective
reductions of 66.7
and 60.9
claimed by the Village.
From this
the projected higher strength effluents listed above are said to
be too low from the levels that will actually result.
The Infiltration-Inflow Analysis submitted to the Agency
shows basement backups of two to eight hours
in duration during
a moderate rain.
The sewer system evaluation mentioned above
is expected
in September with
a facilities plan expected in
October 1976.
Plans and specifications are to be completed
by April
1977.
The Agency recounts a long list of deficiencies in the
operation of the existing sewage treatment plant.
Influent
(raw sewage)
has been diverted to the sludge drying beds which
overflow to the ground 50 feet from Rat Run Creek.
Screenings
are not being disposed of properly.
The plant flow is not
measured.
No certified plant operator
is employed.
Operating
reports are not being submitted and laboratory tests are not
performed properly.
A biological survey of Rat Run Creek performed May
14,
1976
shows
a
“balanced” condition a mile upstream of the sewage plant
discharge and an “unbalanced” condition 300 yards upstream as
well
as 0.3 mile downstream.
At a 0.8 mile distance downstream
the Creek was “semi—polluted”.
The “unbalanced” conditions are
said
to be due to stream channelization.
Sludge-like deposits
were found downstream presumably at the 0.3 mile station.
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248
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The Agency summarizes all the deficiencies in plant operation
and the existence of basement backups and recommends that a
variance not be granted.
We agree with the Agency and deny the variance without
prejudice.
The sewer system evaluation study
is due in just a
month and may uncover and correct large inflows that in turn
might eliminate the existing basement backups.
The Board
is
of the opinion that a petitioner ought to fulfill the requirements
for good plant operation and maintenance before
a variance is
granted.
Some showing of good faith is needed and has not been
made to date.
This Opinion constitutes the Board’s findings of
fact
and conclusions of law.
ORDER
The Petition for Variance from Rule 962(a)
of Chapter
3
is denied without prejudice.
IT IS SO ORDERED.
I, Christan L. Moffett, Clerk of the Illinois Pollution Control
B ard~hereby certify the above Opinion and 0 der were adopted on the
~
day of August,
1976 by a vote of
...~O
Illinois Pollution
Board
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