ML20129E600
| ML20129E600 | |
| Person / Time | |
|---|---|
| Site: | Portsmouth Gaseous Diffusion Plant |
| Issue date: | 10/01/1996 |
| From: | Woolley R UNITED STATES ENRICHMENT CORP. (USEC) |
| To: | Jim Hickey NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| GDP-96-0181, GDP-96-181, NUDOCS 9610030217 | |
| Download: ML20129E600 (2) | |
Text
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United States Enrichment Corporation
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2 Democracy Center 6903 Rockledge Drive Bethesda. MD 20817 Tel- (301) 564-3200 Uniteil States Enricliment Coriu> ration October 1,1996 Mr. John W. N. Hickey SERI AL: GDP 96-0181 Chief, Enrichment Branch Division of Fuel Cycle Safety and Safeguards, NMSS United States Nuclear Regulatory Commission Washington, D.C. 20555-0001 Portsmouth Gaseous Diffusion Plant (PORTS)
Docket No. 70-7002 Closure of Compliance Plan Issue 40 - Operational / Safety System Trip Redundancy
Dear Mr. Hickey:
In accordance with Section 1701(c) of the Atomic Energy Act of 1954 (AEA), as amended, and 10 CFR Part 76, the United States Enrichment Corporation (USEC or Corporation) submitted an Application for a certificate of compliance for the Portsmouth, Ohio Gaseous Diffusion Plant (GDP).
As part of this Application, a Plan for Achieving Compliance with NRC Regulations at the Portsmouth Gaseous Diffusion Plant (Compliance Plan) was also submitted.
Portsmouth Compliance Plan Issue 40, Revision 3, Operational / Safety System Trip IU
- cJancy, contains a plan of action that states:
A review of system designs will be performed where operational trips and alarms coincide with the setpoints for safety system actuation based on the same monitored pararneter and the same equipment actuated. Where redundant operational and safety system actuations exist, corrective action will be identified that may include justification either for the redundancy or system modifications to eliminate the redundancy. The results of this review will be submitted to the NRC for review and approval by October 1,1996. If the review determines that a system modification is required, then this Compliance Plan issue will be revised to establish a new completion date for compliance.
In accordance with this issue, PORTS has completed a review of all current Q systems, including systems that are being classified as Q during the determination of support systems for Q parent systems (17 systems total). The review showed that each of these systems utilizes separate instrumentation for actuation of the operational trip. This was found to be true even when the same parameter is being monitored.
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Mr. John W. N. Hickey October 1,1996 GDP 96-0181 Page 2 This completes the USEC action to close out Compliance Plan Issue 40.
Should you have any questions or require additional information, please contact me at (301) 564-3413 or Steve Routh at (301) 564-3251.
Sincerely, Y )v Robert L. Woolley Nuclear Regulatory Assurance and Policy Manager cc:
NRC Region III Office NRC Resident Inspector - PGD.P NRC Resident Inspector - PORTS DOE Regulatory Oversight Manager DOE HQ j
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