ILLINOIS POLLUTION CONTROL BOARD

September

5,

1974

)

VILLAGE

OF

ASHLAND

)

)

)

v.

)

PCB 74-219

)

)

ENVIRONMENTAL PROTECTION AGENCY

)

)

OPINION

AND ORDER

OF THE BOARD

(by Mr,

Dumelle):

On

June

12, 1974

a petition for variance from Rule

203(f)

of the Water Pollution Regulations was filed,

It asks that the

Village be allowed to dose

its water supply

reservoir with copper

sulfate above the limit of 0,02 mg/I set

by

the Rule in

order to

prevent algal growth.

The petition states

that copper sulfate has

been introduced

into

the reservoir at 6-week intervals between the months

of

April and October for

each

year since 1965 with no observable

adverse effects

on aquatic life.

On June 13, 1974 the Board entered an order asking for

data

as

to the actual copper levels

in the raw water

intake

resulting from the l9~73 dosages with copper sulfate,

The Village

on August

13,

1974, some

60 days

after the entry of the order

(which granted

45 days), has responded with the needed information~.

The levels are not excessive,

On August

5,

1974 the Agency filed its recommendation and

in essence recommends

a grant of the variance,

It notes with

displeasure that

the Village did not follow the Board?s order

in PCB 73-328 (September

20, T~73~~nd

did not report its copper

analyses to the Agency.

The Village

also treated into November

although restricted to October

of 1973 by that order,

The Agency computes that

a dosage of 100

lbs.

of CuSO4

would result

in a copper concentration of 0,17 mg/I in the reservoir,

assuming equal dispersion,

It recommends

one treatment per month

from June 1974 through and including October 1974 not to exceed

100 lbs,

of CuSO4 per treatment and other

conditions such

as

limits

in the raw water intake and reporting requirements.

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The

Vat

r Potlut or Thgula~ioas in order

to exceed copper

o ~er~t~a

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ef ~

32

g

1

ifl

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water supply reservoir

2

Treatment shall be once per month

(or

less)

for the months

of June through October 1974 not

to exceed more

than 100

lbs,

of copper sulfate per treatment

3,

Copper concentrations in the raw water

intake

to the treatment

plant shall never exceed 1,0 mg/i.

4,

Measurements

for copper shall be taken in the reservoir before

nd after treatment and

in the raw water intake after treat-

ment

and. reported to the Agency monthly,

11

IS SO ORDERED,

I,

Christan L, Moffett, Clerk of the Illinois

Pollution

Control Board, herçbv certify the above Opinion and Order

were

________

of September,

1974

by a

vote

of

C

ristan

L, Mo

et

,

r

Illinois Pollution

rol

Board

13

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