ML20055D298

Informs of Change in Location of Discharge of Reject Water from Plant Reverse Osmosis Water Purification Sys.Effective 900626,discharge Directed to Discharge Tunnel at Intake Structure Per State Recommendation

ML20055D298
Person / Time
Site:	North Anna
Issue date:	06/28/1990
From:	Marshall B VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Kregloe W VIRGINIA, COMMONWEALTH OF
References
NUDOCS 9007060131
Download: ML20055D298 (2)

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• Ghss Alh'n, Verginia 23060 1 .

June-28, 1990 -

CERTIFIED MAIL RETURN RECEIPT REQUESTED y,m m Mr. William.L. Kregloe Virginia Water Control Board l Valley Regional Office i 116 North Main Street P.O. Box 268 Bridgewater, VA 22812 j

, RE: NOTIFICATION OF CHANGE IN THE REVERSE O8MOSIS DISCHARGE -

NORTH ANNA POWER STATION

Dear Mr Kregloe:

r This letter is to inform the Virginia Water Control Board that a' ,

change has been made in the location of the. discharge of reject

~. water from North Anna's reverse osmosis -(RO) water-purification, system. As you- are > aware the discharge from the RO had been temporarily directed to the settling pond since recirculation was discontinued-last summer. As of June 26, 1990, the discharge is '

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directed to the discharge tunnel at the intake structure per_your.

recommendation.

The waste water involved is lake water concentrated approximately '

1 4-fold. Though the constituents in the RO reject are new to the l discharge-tunnel, the overall change in the-quantity and quality of the discharge from the tunnel (Outfall 010) is negligible. No effluent limitations'or water quality standards are violated.

This change was anticipated and described in the, VPDES permit application submitted for the station. It should appear in the reissued permit as internal'outfall 020. -Twice monthly monitoring for flow, pH, and TSS as specified in the draft permit and previously agreed to will be initiated immediately. .

,. If you have questions concerning this change, please contact G. R.

l- Knauer (804/273-2996) of my staff.

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Sincerely, L / 3 L

B. M. arshall, P.E.  !

Manager, Water Quality _

t 7060131 900608 P ADOCK 03 coo 33g PDC od

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cc: E s,..nNuclear,wRegulatory.iCommission  !

Attention: Document Control Desk l Washington, D.C. -20555

U. S. Nuclear Regulatory Commission 101 Marietta Street, N.W..

Suite 2900

• Atlanta, Georgia 30323 Mr. M. S. . Lesser.

NRC Senior-Resident Inspector ,

North Anna Power Station I

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