ML21225A772

Letter to J. Welsch, Pg&E, from A. Snyder, NRC - Humboldt Bay Power Plant, Unit 3 - Approval of Final Status Survey Reports for Trailer City Survey Units (OOL09-01 Through OOL09-10)

ML21225A772
Person / Time
Site:	Humboldt Bay
Issue date:	08/24/2021
From:	Amy Snyder Reactor Decommissioning Branch
To:	Welsch J Pacific Gas & Electric Co
Amy Snyder, 301-415-6822
Shared Package
ML21225A771	List: ML21225A772 ML21225A773
References
Download: ML21225A772 (3)

Text

August 24, 2021 Mr. James M. Welsch Senior Vice President Generation and Chief Nuclear Officer P.O. Box 56 Mail Code 104/6 Avila Beach, CA 93424

SUBJECT:

HUMBOLDT BAY POWER PLANT, UNIT 3 - APPROVAL OF FINAL STATUS SURVEY REPORTS FOR TRAILER CITY SURVEY UNITS (OOL09-01 THROUGH OOL09-10)

Dear Mr. Welsch:

By letter dated May 21, 2020 (Agencywide Documents Access and Management System

[ADAMS] Accession No. ML20142A287), Pacific Gas and Electric Company submitted final status survey reports (FSSRs) for ten survey units in what is informally known as the Trailer City Area (formerly known as the Hazardous Waste Area in the License Termination Plan) for Humboldt Bay Power Plant, Unit 3 facility). These survey units are designated as OOL09-01 through OOL09-10: the discharge canal headworks (OOL09-01); the settling basins (OOL09-02); Soil Management Facility (SMF) West (OOL09-03); SMF East (OOL09-04); Bull Pen West (OOL09-05); Bull Pen East (OOL09-06); Ground Water Treatment System (GWTS)

North (OOL09-07); GWTS South (OOL09-08); Asbestos Area (OOL09-09); and the Trail Buffer Zone (OOL09-10). The U.S. Nuclear Regulatory Commission (NRC) staff have reviewed the FSSRs for these survey units and the results presented are all a fraction of the Derived Concentration Guideline Limit. The gamma walkover scanning coverage described in the report was adequate. The survey and analyses for these survey units provided reasonable assurance that you can demonstrate compliance with the unrestricted release criteria in Title 10 of the Code of Federal Regulations (CFR) 20.1402, Radiological criteria for unrestricted use. Based on our review of the survey results, OOL09-01 through OOL09-10 survey units are acceptable to support release of those areas for unrestricted use.

Further details on our review are provided in the enclosed safety evaluation.

In accordance with Title 10 CFR 2.390 of the NRCs Rules of Practice for Domestic Licensing Proceedings and Issuance of Orders, a copy of this letter will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records component of NRCs ADAMS. ADAMS is accessible from the NRC Web site at https://www.nrc.gov/reading-rm/adams.html.

J. Welsch Should you have any questions regarding this action, please contact me at 301-415-6822 or via e-mail at Amy.Snyder@nrc.gov.

Sincerely, Signed by Snyder, Amy on 08/24/21 Amy M. Snyder, Senior Project Manager Reactor Decommissioning Branch Division of Decommissioning, Uranium Recovery and Waste Programs Office of Nuclear Material Safety and Safeguards Docket No.: 50-133

Enclosure:

As stated cc w/

Enclosure:

Humboldt Bay ListServ

ML21225A771; Ltr ML21225A772 OFFICE NMSS/DUWP/RDB NMSS/DUWP/RDB NMSS/DUWP/RDB NMSS/DUWP/RDB NAME ASnyder AS GChapman GC BWatson BW ASnyder AS DATE Aug 16, 2021 Aug 23, 2021 Aug 24, 2021 Aug 24, 2021