ML20005E583
| ML20005E583 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 12/28/1989 |
| From: | Bevan R Office of Nuclear Reactor Regulation |
| To: | Cockfield D PORTLAND GENERAL ELECTRIC CO. |
| References | |
| NUDOCS 9001080291 | |
| Download: ML20005E583 (4) | |
Text
December 28, 1989 i
Docket No. 50-344 DisTIBUTION JiPUTTTTM OC/LFMB NRC & Local PDRs PDV Reading Region V (4)i JZwolinski GWKnighton JLee RBevan 0GC Mr. David W. Cockfield EJordan vice President, Nuclear ACRS(10)
Portland General Electric Company GHolahan 121 S.W. Salmon Street DHagan Portland, Oregon 97204 GHill JCalvo
Dear Mr. Cockfield:
GPA/PA
SUBJECT:
EMERGENCY AUTHORIZATION FOR TEMPORARY CHANGE TO TECHNICAL SPECIFICATION 3.3.3.6.b FOR TROJAN NUCLEAR PLANT i
This letter authorizes a temporary change to Technical Specification 3.3.3.6.b
' as requested by your letter dated December 27, 1989.
You request that Technical Specification 3.3.3.6.b be changed so as to permit periodic venting of he control room atmosphere to the outside while new chlorine detectors are being installed and made operable. The change provides that appropriate compensatory measures be taken to isolate the control room if a toxic gas accident should occur, lhe temporary change allows continued safe operation of the plant and normal surveillance requirements to be met while new chlorine oetectors are procured, qualified, installed, and made operable.
lhis process is to be completed by approximately March 15, 1990.
Facility Operating License NPF-1 for Trojan Nuclear Plant is hereby amended by changing Technical Specification 3.3.3.6.b, page 3/4 3-47 (copy enclosed) as requested in your letter dated December 27, 1989. Copies of the Amendment and our Safety Evaluation for this technical specification change will be sent to you when processed.
Sincerely, Roby Bevan, Project Manager Project Directorate V Division of Reactor Projects-III IV, Y and Special Projects Office of Nuclear Reactor Regulation Enclosure Technical Specification 3.3.3.6 cc: See next page hP:PDV
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December 28, 1989 Docket No. 50a344 1
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Mr. David W. Cockfield Vice President, Nuclear Portland General Electric Company 121 S.W. Salmon Street Portland, Oregon 97204
Dear Mr. Cockfield:
SUuJECT: EMERGENCY AUTHORIZATION F0K TEMPORARY CHANGE TO TECHNICAL SPECIFICATION 3.3.3.6.b fur TROJAN. NUCLEAR PLANT This letter authorizes a temporary change to Technical Specification 3.3.3.6.b as requested by your letter dated vecember 27, 1989.
You request that Technical Specification 3.3.3.6.b be changed so as to permit periodic venting of the control room atmosphere to the outside while new chlorine detectors are being installed and made operable. The change provides that appropriate compensatory measures be taken to isolate the control room if a toxic gas accident should occur. The temporary change allows continued safe operation of the plant and normal surveillance requirements to be met while new chlorine detectors are procured, qualified, installed, and made operable.
This process is to be completed by approximately March 15, 1990.
Facility Operating License NPF-1 for Trojan Nuclear Plant is hereby amended I
by changing Technical Specification 3.3.3.6.b, page 3/4 3-47 (copy enclosed) as requested in your letter dated December 27, 1989.
Copies of the Amendment and our Safety Evaluation for this technical specification change will be sent to you when processed.
Sincerely,
h Roby Bevan, Project Manager Project Directorate V Division of Reactor Projects-III IV, Y and Special Projects Office of Nuclear Reactor Regulation i
Enclosure Technical Specification 3.3.3.6 cc: See next page 1
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.. 4 Mr. David W. Cockfield Trojan Nuclear Plant Portland General Electric Company cc:
Senior Res1 dent Inspector U.S. Nuclear Regulatory Commission Trojan Nuclear Plant Post Office Box 0 Rainier, Oregon 97048 Mr. Michael J. Sykes, Chairman e
Board of County Commissioners Lolumbia County St. Helens, Oregon 97b01 i
Mr. William ~T. Dixon Oregon Department of Energy Salem Gregon 97310 Regional Administrator, Region V
. U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 l
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I INSTRUMENTATION CHLORINE DETECTION SYSTEMS LIMITING CONDITION FOR OPERATION 3.3.3.6 Two independent chlorine detection systems, with their alarm / trip setpoints adjusted to actuate at a chlorine concentration of 1 5 ppm, shall be OPERABLE.
APPLICABILITY: All MODES.
ACTION:
With one chlorine detection system inoperable, restore the a.
inoperable detection system to OPERABLE status within 7 days or within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> initiate and maintain operation of the control room emergency ventilation system in the recircula-tion mode of operation.
b.
With both chlorine detection systems inoperable, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> initiate and maintain operation of the control room emergency ventilation system in the recirculation mode of operation.*
l The provisions of Specification 3.0.4 are not applicable.
c.
I SURVEILLANCE REQUIREMENTS i
4.3.3.6 Each chlorine detection system shall be verified energized at j
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least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and demonstrated OPERABLE by performance of a CHANNEL FUNCTIONAL TEST at least once per 31 days and a CHANNEL CALIBRATION at least once per 18 months.
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- For the purpose of meeting Specification 4.7.6.1.b, or fer providing periodic air exchanges to maintain air quality in the control room, the outside dampers for the normal and/or emergency control room ventilation tystems may be opened for up to one hour provided that appropriate com-pensatory measures are taken to isolate the control room if a toxic gas accident should occur. This process is permitted until new chlorine detectors are made OPERABLE, by March 15, 1990.
(
TROJAN-UNIT 1 3/4 3-47 Amendment No. 73.JE2, 1
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