ILLINOIS POLLUTION CONTROL BOARD
July 26, 1973
)
CITY OF EUREKA
)
)
)
v.
)
PCB 73-206
)
)
ENVIRONMENTAL PROTECTiON AGENCY
)
)
OPINION OF THE BOARD (by Nr. Dumelle)
variance is granted from Rule 203(f) of the Water Pollution
Regulations to permit exceeding the water quality standard for
copper of 0.02 mg/i when dosing with copper sulfate for algae
control in the water supply reservoir.
The variance is subject to the following conditions:
1. Copper sulfate treatments are limited to one each for
the months of July through and including September 1973.
2. The dosage shall not exceed 800 lbs. per treatment of
copper sulfate.
3. The.11~pper concentration at the raw water intake to
th~treatment plant shall never exceed 1.0 mg/i.
4. The copper concentrations in the reservoir be measured
immediately prior to and after each treatment and the
results submitted to the Agency on a monthly basis~
IT IS SO ORDERED.
I, Christan L. Moffett, Clerk of~.~eIllinois Pollution Control
Board, hereby certify the above Opinion ~w~asadopted on the
~Ho~
day of July, 1973 by a vote of _________________________________
Christan L. Mof~ett,tCi~erk
Illinois Pollution Control Board
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