ILLINOIS POLLUTION CONTROL BOARD

July 19,

1973

CITY OF LITCHFIELD

V.

)

PCB 72-311

ENVIRONMENTAL PROTECTION AGENCY

OPINION AND ORDER OF THE BOARD

(by Mr. Dumelle):

This

is

a petition for variance requesting relief from

Rule 405 of the Water Regulation which provides that no

effluent shall exceed 400 fecal coliforms per 100 ml after

July

31,

1972.

Hearing was held.

Petitioner’s present sewage treatment plant consists of

a

primary-secondary trickling filter facility with a design

capacity of

8000 population equivalents.

The design average

flow of this plant

is 1.0 mgd.

The effluent from the plant is

discharged into an unnamed drainage ditch tributary to the West

Fork of

Shoal Creek.

Petitioner is presently pursuing a program to upgrade

these facilities

and claims this construction willbe completed

by December,

1973.

Appropriate disinfection facilities are to

be provided under these plans and petitioner originally wished

to delay installation of

the disinfection facilities necessary

to meet the requirements of Rule 405 until that time.

According

to the evidence, however, petitioner was going to install

temporary chlorination by March

1,

1973

(R.

11).

The proposed complete project includes new primary clarifiers,

new raw sewage pumps and controls, additional

final clarifier

with chemical feed,

dual media gravity tertiary filters, primary

treatment for excess flows received atthe

plant, chlorination

for all flows received at the plant, gas recirculation for the

two stage digester, mechanical

sludge dewatering, and new

control building and laboratory.

These

facilities will be de-

signed for a 10,000 population equivalent.

In December,

1970,

the City retained a consulting engineer

to undertake a comprehensive study of the existing sewage treat-

ment facilities.

This report was adonted by the City Council in

November,

1971.

The City then authorized the engineers

to prepare

the final plans and sp’~cificationsfor the sewage treatment

B

51~

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amprovements

which

hJ.sve

been

subm.ltted

to

the

Agency

for

a

a:

a

l~ aann

t~

1as

weoe

a~pfl

nor

5or

a’

-

St:ate

and

Federaj...

Construction

Grants.

Investiqations

coasducted

by

the

Aoenoy

show

that

the

~a~sert

1nCsrca~

In’

le01aLnamr

a

pInt

~o~can~c

01gh

leve~s

of

feca..l

coiiform~

Samples~ of.

tb.e

niantvs

effluent

collected

ant

~ua~

~,

370 to ae7ac-re

017

ae e01od average f~n

veC a

01

230

1)00

-CO

frrm

r~’

oact

fins

ci- r~f_:

•aiil,

100,0 O(hDLOO

ml

fro~mthe

east

final

c..anifie

•Saanples.

taken

by

the

Agency

on

Septemher

27,

1972

(Aqency

am.

I)

hho’wed

wai.er

gual..ity

-violations

for

feoal

coli.Jia.rm

levels

n~t~

~nanr

s~ddowrctroam of the

?e’-

~ner’s

ana~

c

n

the

unnamed

tributary

A

sample

taheat 50 yards. upstream of the

na~s

s

owed

a

en~

or

00,!

n

n

Tam

ernuent

ns—

charqeu

Joy

the

petitioner

on

th.is

day

contained

1, 000

,

000

fecal

atonfo

ins

in

ml

from~the west

final

olarifie’r

and

640

,

000 ,‘l(O

ml

from

ttie

east

iinai

ci nra tTier.

Funbher.,

samples

taken

in

7ie•s t

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