ILLINOIS POLLUTION CONTROL BOARD
August 7, 1997
COMMONWEALTH EDISON COMPANY
(Zion Power Station),
Petitioner,
v.
ILLINOIS ENVIRONMENTAL
PROTECTION AGENCY,
Respondent.
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PCB 97-202
(Provisional Variance - Water)
ORDER OF THE BOARD (by C.A. Manning):
On July 9, 1997, the Illinois Environmental Protection Agency (Agency) filed a joint
motion to vacate the Board’s May 15, 1997, order granting Commonwealth Edison Company
(petitioner) a provisional variance for its Zion Power Station. See Commonwealth Edison Co.
v. IEPA (May 15, 1997), PCB 97-202. The Board granted petitioner’s request for a
provisional variance to allow petitioner to operate its electric generating facility while it
conducted treatment on the component cooling water system (CCW system). The provisional
variance was to begin on a date in May 1997 when treatment of the CCW system was to
begin. In the motion to vacate, the parties assert that due to scheduling conflicts the treatment
of the CCW system anticipated under the provisional variance could not be performed. See
Commonwealth Edison, PCB 97-202, slip op. at 1. Therefore, the parties request that the
Board vacate the order granting petitioner the provisional variance.
The Board hereby grants the joint motion to vacate the Board’s May 15, 1997, order
granting petitioner a provisional variance for its Zion Power Station. The Board also notes
that it granted petitioner’s request for a similar variance to begin in late July or early August
1997 when treatment of the CCW system would be conducted. Commonwealth Edison Co. v.
IEPA (July 10, 1997), PCB 97-202.
IT IS SO ORDERED.
Board Member K.M. Hennessey abstained.
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I, Dorothy M. Gunn, Clerk of the Illinois Pollution Control Board, hereby certify that
the above order was adopted on the 7th day August of 1997, by a vote of 5-0.
Dorothy M. Gunn, Clerk
Illinois Pollution Control Board
