GO2-18-104, Final Intake Screen Modeling Results

Final Intake Screen Modeling Results

ML18285A448
Person / Time
Site:	Columbia
Issue date:	09/26/2018
From:	Khounnala S Energy Northwest
To:	Graves R Document Control Desk, Office of Nuclear Reactor Regulation, National Marine Fisheries Service
References
DIC 0015.65, GO2-18-104
Download: ML18285A448 (2)

Text

Shannon E. Khounnala Columbia Generating Station ENERGY P O Box 968, MD PE03 Richland , WA 99352-0968 NORTHWEST Ph. 509-377-8639 sekhounnala@energy-northwest.com September 26 , 2018 G02-18-104 DIC 0015.65 Mr. Richie Graves Columbia Hydropower Branch National Marine Fisheries Service US MAIL AND ELECTRONIC SUBMITIAL 1201 NE Lloyd Blvd , Suite 1100 Portland , Oregon 97232

Subject:

FINAL INT AKE SCREEN MODELING RESULTS FOR COLUMBIA GENERATING STATION (NRC DOCKET 50-397)

References:

1) Endangered Species Act Section 7(a)(2) Biological Opinion, and Magnuson-Stevens Fishery Conservation and Management Act Essential Fish Habitat Response for Renewing the Operating License for the Columbia Generating Station, Richland , Washington (NWR-2011-05286).

2) Letter, G02-18-011 , January 18. Letter to R Graves (National Marine Fisheries Service) from SE Khounnala (Energy Northwest). Intake Screen Modeling and Study Design for Columbia Generating Station. 2018

3) Letter, 802-18-073, May 3. Letter to R Graves (National Marine Fisheries Service) from SE Khounnala (Energy Northwest). Intake Screen Modeling Results for Columbia Generating Station. 2018 Per Reference 1, Biological Opinion, Section 2.d of the Terms and Conditions, I am writing to inform your agency that Energy Northwest has completed the computation fluid dynamics study of the Columbia Generating Stations (Columbia) intake screens and I am providing the required final report via this correspondence.

The modeling effort and results were completed based on the design approach outlined in Reference 2 and the initial report was provided to your agency staff for review (Reference 3).

Energy Northwest and our contracting partners met with your agency on May 16, 2018 to discuss this effort and the findings contained in the results report. Following our meeting and the opportunity to address questions and comments, Energy Northwest was informed that there were no substantive comments to the report and we were instructed to submit a formal hard copy to your agency and the Nuclear Regulatory Commission.

I would like to take the opportunity to thank your staff for the time and effort to complete the review and evaluation of the Computation Fluid Dynamics report and Columbia's intake structures. Energy Northwest has removed notations on the final report indicating the data within the report contained proprietary information . We are supportive of using the information contained with in the final document to advance knowledge , training, or decision making related to intake structures and fish protection .

Again , thank you for your level of effort on this action . If you requ ire any additional information ,

please contact me at (509) 377-8639.

Respectfully, 26/09/18 13:00 :22 -07 :00 X

Khounnala , Shannon E. ' Enviro nme "Cosign Shannon E. Khounnala Environmental and Regulatory Programs Manager SEK/nb

Enclosure:

Computational Fluid Dynamics Analysis of Perforated Intake Screens at Columbia Generating Station , April 2018.

Cc: Briana Grange, NRC Lynne Krasnow, NMFS NRG Document Control Desk, US Mail Amy Moon , Energy Facility Site Evaluation Council, US Mail Ellie Keys, Washington Department of Ecology, US Mail Lynn Albin , Washington State Department of Health, US Mail Peggy Miller, Washington State Department of Fish and Wildlife, US Mail INTERNAL DISTRIBUTION: FILE COPY SEK/lb Columbia Files 964Y Docket File PE20