ML18143B649

NPDES Noncompliance Notification:Flow for Outfall 011 Sewage Treatment Plant Estimated for Sept Rather than Reflecting Recorded Results.On 850928,sample Taken from Outfall 002 Oil Tank Diked Area Discharge Exceeded Limits

ML18143B649
Person / Time
Site:	Surry
Issue date:	10/04/1985
From:	Marshall B VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Ronaldo Jenkins VIRGINIA, COMMONWEALTH OF
References
NUDOCS 8510150173
Download: ML18143B649 (2)

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~~~w VIRGINIA POWER October 4, 1985 CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr. Ray R. Jenkins Virginia Water Control Board Piedmont Regional Office 2201 West Broad Street Richmond, Virginia 23230 Surry Power Station - September NPDES Permit Exceptions

Dear Mr. Jenkins:

This is to confirm the NPDES permit exceptions for our Surry Power Station which were reported to you on October 2, 1985 by telephone.

The flow for Outfall 011, the sewage treatment plant, was estimated for September, rather than reflecting recorded results. This was due to a .1 malfunctioning flow integrator, as previously reported during August. As stated in our earlier report, we have ordered repair parts from the Fisher-Porter Company which manufactured the equipment. Some of the parts have been received, but others are still on order, and delivery has been promised during October. Repairs will be completed when the remaining parts arrive. Flow estimates have been made using flow measuring equipment which is still operative.

Also during September, a discharge was made from Outfall 002, the gas turbine oil tank diked area. Analysis of a sample taken from this discharge on September 28, 1985 at 2:00 a.m. revealed a pH of 5.8. This exceeds our limitation range of 6.0-9.0. As stated during previous discussions, we feel that this pH level is due to naturally occurring rainfall conditions. Four rainfall samples were collected on September 27, 1985, which reflected the rain event causing the discharge made on September 28. Analysis of these rainfall samples indicated pH values of 5.60, 5.35, 5.15, and 5.10 S.U. These results are similar to analyses made of previous rain event samples, and support our opinion that this pH is due to natural conditions, and not to any process occurring within the holding area. In fact, there are no treatment or processes which are performed in this holding area. Per your discussion with Bruce Easley of this department, it is our understanding that you concur with

"' . \ ,*.--- e Mr. Ray R. Jenkins Page No. 2 October 4, 1985 this op1n1on and that no other corrective action is required. Please do not hesitate to contact us if you have any questions or comments regarding this matter.

Sincerely,

/1-Jt(!J,J.i__

B. M. Ma rs ha 11 Manager Water Quality cc: Dr. J. Nelson Grace, USNRC - Docket No. 50-280/50-281

• Mr. Harold R. Denton, USNRC - Docket No. 50-280/50-281 ~

Mr. Donald J. Burke, USNRC - Docket No. 50-280/50-281 0591020BWE2110