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Telecopy Ao:On 721208,chimney Monitoring Sys Discovered to Be Inoperable.Caused by Frozen Sample Line Between Pump, Probe & Chimney.Efforts to Clear Line in Progress
	ML20084J130
Person / Time
Site:	Quad Cities
Issue date:	12/08/1972
From:	Stevenson B; COMMONWEALTH EDISON CO.
To:	Jordan E; NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084J119	List: ML20084J116; ML20084J130;
References
	NUDOCS 8305120174
	Download: ML20084J130 (1)
	v • d • e

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O pie VUA123 VEDI84 1332) 1-014758C343)PD 12/08/72 1329

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LCZC 00074 TDVE CORDOVA ILL 107 12-08 1044A CST t

PMS MR ED JORDAN DLR DONT FONE US ATOMIC ENERGY COMM E

REGION 3 COMPLIANCE 799 ROOSEVELT ROAD i

y GLEN ELLYN ILL RE GUAD CITY NUCLEAR POWER STATION LICENSES DPR-29 AND 30 l

APPENDIX A SECTION 1.0. A.2. 3.8. A.1 6.6. A.3 t

WHILE OPERATING BOTH UNITS AT 90 PER CENT POWER ON DEC. 8, 1972 AT 0250 THE PLANT CHIMNEY MONITORING SYSTEM WAS DISCOVERED TO BE E

INOPERATABLE. THOUGH PRELIMINARY INDICATION IS THAT THE SAMPLE LINE IS FROZEN SOMEWHERE BETWEEN THE PUMB AND THE PROBE AND THE CHIMNEY.

E EFFORTS ARE IN PROGRESS TO CLEAR THE LINE WHILE MAINTAINING

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ISTEADY LOAD. ALL AIR EJECTORS OFF GAS MONITERS AND SAMPLE I

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!'/ SYSTEMS ARE OPERABLE. OFF GAS RELEASE RATE IS LESS THAN 7,000 l UC/SEC BASED ON SAMPLE RESULTS.

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