ML20236T181

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Notice of Violation from Insp on 870824-28,0911-18 & 1020. Violation Noted:Radioactive Matl Stored Inside Reactor Vessel Head Stand Fixture,Producing Whole Body Dose Rates Up to 500 Mrem/H Not Posted as High Radiation Area
ML20236T181
Person / Time
Site: Rancho Seco
Issue date: 11/13/1987
From: Wenslawski F
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
To:
Shared Package
ML20236T177 List:
References
50-312-87-26, NUDOCS 8712010060
Download: ML20236T181 (2)


Text

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,q APPENDIX A NOTICE Of VIOLATION 1

I Sacramento Municipal Utility District Docket No. 50-312 Rancho Seco Nuclear Generating Station License No. DPR-54

)

During an NRC inspection conducted on August 24-28, 1987, September 11-18, 1987, and October 20, 1987, three violations of NRC requirements were identified.

In accordance with the " General Statement of Policy and Procedure for NRC Enforcement Actions," 10 CFR Part 2, Appendix C (1987), the violations are listed below:

A.

Technical Specifications, Section 6.13, "High Radiation Area," states in part:

"Each High Radiation Area ir which the intensity of radiation is greater than 100 mrem /hr but less than 1,000 mrem /hr shall be barricaded and conspicuously posted as a High Radiation Area and entrance thereto shall be controlled by issuance of a Radiation Work Permit, and any individual or group of individual's permitted to enter such areas shall be provided with a radiation monitoring device which continuously indicates the radiation dose rate in the area."

Contrary to the above, on August 16, 1987, radioactive material stored inside the reactor vessel head stand fixture located on the +40' level of the Reactor Building, producing whole body dose rates up to 500 millirem per hour (mrem /hr), was not posted as a high radiation area.

This is a Severity Level IV Violation (Supplement IV).

)

B.

Technical Specifications, Section 6.11, " Radiation Protection Program" states in part:

" Procedures for personnel radiation protection shall be prepared consistent with the requirements of 10 CFR Part 20 and shall be approved, maintained and adhered to for all operations involving personnel radiation exposure."

Licensee Procedure AP-305-8A, " Routine and Radiation Work Permit Surveys," paragraph 6.2.4 states in part:

"In addition to other scheduled and required surveys, document changing conditions due to plant processes and addition or removal of radioactive materials (Radioactive Waste Storage; Liquid Processing Area; Waste Compactor Area) or other evolutions as soon after the change as possible.

For some evolutions, this may mean performing several surveys in one day."

Contrary to the above, during the time between December 26, 1985, and August 26, 1987, radioactive materials located inside the reactor 8712010060 871113 PDR ADOCK 05000312 O

PDR

i

~2-vessel head stand fixture area were not surveyed as necessary to document the changing conditions which resulted in a high radiation area not being properly posted (see item A above).

This is a Severity Level IV Violation (Supplement IV),

C.

Technical Specifications, Table 4.19-1, Footnote 5, " Radioactive Liquid Effluent Monitoring Instrumentation," states in part:

"During periods of known activity in the regenerant tank, perform a source check daily during releases via this pathway."

Contrary to the above, daily source checks were not performed when effluent radiation monitor R15020 was operable, the regenerant holdup n

tanks contained known activity during the period from August 1984 through February 20, 1987, and releases were made via this pathway.

This is a Severity Level IV Violation (Supplement 1).

Pursuant to the provisions of 10 CFR 2.201, Rancho Seco Nuclear Generating Station is hereby required to submit a written statement or explanation to the U. S. Nuclear Regulatory Commission, ATTN:

Document Control Desk, Washington, DC 20555 with a copy to the Regional Administrator, Region V, within 30 days of the date of the letter transmitting this Notice.

This reply should be clearly marked as a " Reply to a Notice of Violation" and should include for each violation:

(1) the reason for the violation if admitted, (2) the corrective steps that have been taken and the results achieved, (3) the corrective steps that will be taken to avoid further violations, and (4) the date when full compliance will be achieved.

If an adequate reply is not received within the time specified in this Notice, an order may be issued to show cause why the license should not be modified, suspended, or revoked or why such other action as may be proper should not be taken.

Consideration may be given to extending the response time for good cause shown.

FOR THE NUCLEAR REGULATORY COMMISSION Frank A. Wenslawski, Chief Emergency Preparedness and Radiological Protection Branch Dated at Walnut Creek, California this 13 day of November

, 1987

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