ML022980333

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Hydroelectric Project Annual Plots of Survey Data and Annual Instrumentation Summaries for Main Dam. Without Enclosures
ML022980333
Person / Time
Site: North Anna  Dominion icon.png
Issue date: 01/23/2002
From: Heacock D
Dominion Generation
To: Gotzmer J
Office of Nuclear Reactor Regulation, US Dept of Energy, Federal Energy Regulatory Commission (FERC)
References
F2002-001
Download: ML022980333 (2)


Text

cc:

U. S. Nuclear Regulatory Commission (wlo attachments)

Region II Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 Mr. M. J. Morgan (w/o attachments)

NRC Senior Resident Inspector North Anna Power Station

David A. Heacock St ViePeidnofminuon Dominion Generation North Anna Power Station P.O. Box 402, Mineral, VA 23117 Phonc: 540-894-2101, Fax: 540-894-2878 DavidHeacock@dom.com January 23, 2002 Mr. Jerrold W. Gotzmer - Director Serial No. F2002-001 Federal Energy Regulatory Commission Atlanta Regional Office, Parkridge 85 North Building 3125 Presidential Parkway, Suite 300 Atlanta, Georgia 30340

Dear Mr. Gotzmer:

PROJECT NO. 6335-VA / NATDAM NO. VA83005 NORTH ANNA HYDROELECTRIC PROJECT ANNUAL PLOTS OF SURVEY DATA AND ANNUAL INSTRUMENTATION SUMMARIES FOR THE MAIN DAM As requested by the FERC letter dated November 2, 1993, Dominion Generation hereby submits the 2001 updates to plots of survey data and instrumentation summaries for the North Anna Hydroelectric Project. The net settlement survey data and a plot of crest settlement are provided in Attachment 1.

Embankment instrumentation data for piezometers, weirs, and relief wells is provided in Attachment 2.

The instrumentation data include: 1) updated readings for operable piezometers, 2) individual piezometer plots depicting readings, 3) cross section of selected sections of the dam showing plots of piezometer readings, including highs and lows, 4) weir readings, and 5) summaries of relief well water levels and sediment accumulation for 2001. Our review of the survey results and instrumentation readings indicate that the North Anna Hydroelectric Project and project works are performing as designed.

Should you have any questions please contact Mr. M. P. Whalen at (540) 894-2572.

Very truly yours, David A. Heacock Site Vice President Attachments