ILLINOIS POLLUTION CONTROL BOARD

December 9,

1971

In the matter of

JOINT APPLICATION OF

)

PCB 71-20

COMMONWEALTE EDISON CO.

AND

IOWA-ILLINOIS

GAS

& ELECTRIC CO.

)

(QUAD—CITIES PERMIT)

Supplementary Order

(by Mr.

Dumelle)

On November

15, 1971

the Board issued the permit in this

proceeding.

On November

23,

1971

the

Board in PCB 70-21

modified

a permit issued on March 3,

1971

for Dresden Unit

3

of the Dresden Nuclear Power Station near Morris, Illinois.

The two Quad-Cities reactors and Dresden

3 are identical reactors

in design and size.

The order which fotlows merely conforms

the Quad—Cities

permit

of November

15,

1971 to the newer language of the Dresden

3

permit

of November

23,

1971 with regard

to the prohibition of

reactor operation

if emergency core cooling systems

are inoperable

and a change in the language regarding the 37,500

uCi/sec.

for

a single reactor and 57,500 uCi/sec. for both reactors action levels

for gaseous radioactive emission reduction.

OPDER

The

~bvember

15,

1971 permit issued by the Board

is modified

as follows:

The phrase “to the extent permitted by power demand”

is deleted and the phrase “to the extent permitted

without interrupting electric service” is substituted

in its stead

in

4 (b).

The following sentence is added to

7.

“The permittees shall not operate any reactor at Quad—Cities

if any of the reactor’s emergency core cooling systems

are unable to operate.”

I, Christan

Moffett, Acting Clerk of the Illinois Pollution Control

Board,

certify the Board adopted the above Order on the

)‘

day of

December,

1971.

~

/22~~

‘Christan Moffett~,~’tingClerk

Illinois Pollutiofr Control Board

3