ML18096B335

NPDES Noncompliance Notification:On 930303,oil Sheen Entered Delaware River from South Yard Drain Dsn 489 & Extended Approx 80 Ft Along Shoreline.Caused by Operation of Unit 2 Skim Tank.Absorbant Boom Maintained in Manholes

ML18096B335
Person / Time
Site:	Salem
Issue date:	03/08/1993
From:	Thomson F Public Service Enterprise Group
To:	Mathis S NEW JERSEY, STATE OF
References
NLR-E93097, NUDOCS 9303150049
Download: ML18096B335 (5)

Text

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-* e Public Ser-Vice Electric and Gas Company P.O. Box 236 Hancocks Bridge, New Jersey 08038 Nuclear Department MAR 0 8 1993 CERTIFIED MAIL RETURN RECEIPT REQUESTED ARTICLE NUMBER: P 346 404 252 NLR-E93097 Mr. Steve Mathis NJ Department of Environmental Protection and Energy Off ice of Enforcement Policy Southern Bureau of Water and Hazardous Waste Enforcement 20 East Clementon Road Gibbsboro, NJ 08026

Dear Mr. Mathis:

SALEM GENERATING STATION NJPDES PERMIT NO. NJ0005622 OIL DISCHARGE TO RIVER CASE NOS. 93-03-03-1045-23 AND 93-03-08-1106-00 Public Service Electric and Gas Company (PSE&G) reported a discharge of oil to the Delaware River from the Salem Generating Station on March 3, 1993. The oil sheen entered the River from the South Yard Drain, DSN 489, and extended approximately 80 feet along the shoreline. The sheen was immediately reported to the NJDEPE Hotline, Case No. 93-03-03-1045-23, and was also reported to the National Response Center, Case No. 160-484. The U.S.

Coast Guard dispatched Petty Officers Garcia, Beverly and Fisher to inspect the discharge and cleanup activities.-* Less than one (1) gallon of oil was estimated to have been discharged.

The oil sheen was discovered by Chemistry personnel at approximately 1020 hours0.0118 days <br />0.283 hours <br />0.00169 weeks <br />3.8811e-4 months <br /> during a routine NJPDES sampling tour.

Although the South Yard Drain is not a normally monitored outfall, Chemistry personnel checked the outfall after sampling the No. 2 skim tank, DSN 489B, which discharges to the yard drain system and appeared to have a light sheen on the surface.

Chemistry personnel reported the sheen to the Senior Nuclear Shift Supervisor for notification of response personnel and regulatory agencies.

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9303150049 930308 \

PDR ADOCK 05000272 S PDR /iif;J'j I The power is in your hands. ~ II 95-2168 REV. 11/91

s. Mathis 2 MAR 0 8 1993 NLR-E93097 Site Protection personnel immediately took action to install a temporary plug in the outfall pipe, effectively terminating the discharge at approximately 1130 hours0.0131 days <br />0.314 hours <br />0.00187 weeks <br />4.29965e-4 months <br />. Additional steps were then taken by Site Protection and site Services personnel to install containment and absorbant boom in the River surrounding the outfall, replace absorbant boom in a manhole upstream of the outfall, and install additional boom in a second upstream manhole. The temporary plug was removed at approximately 1405 hours0.0163 days <br />0.39 hours <br />0.00232 weeks <br />5.346025e-4 months <br />.

The results of the No. 2 skim tank sample taken by Chemistry personnel on March 3, indicated a petroleum hydrocarbon concentration of 21.8 mg/l. The daily maximum permit limit for petroleum hydrocarbons is 15 mg/l. PSE&G was informed of the exceedance on March 8 by the contract laboratory, NET Atlantic.

In accordance with NJAC 7:14A-3.10(d), PSE&G made a second report to the NJDEPE Hotline of a permit exceedance and was assigned case No. 93-03-08-1106-00.

PSE&G believes the cause of both the oil sheen on the River and the petroleum hydrocarbon limit violation are related to the operation of the No. 2 skim tank. Due to problems with the No. 1 skim tank, the No. 2 skim tank is treating all oily wastewater generated in the turbine building. As you are aware, the skim tanks provide some treatment for oily wastewater but were not designed to treat to NJPDES permit limits. PSE&G is addressing this problem by installing an oil water separator system on the South Yard Drain which will treat the discharges from the skim tanks as well as stormwater collected in the switchyard area.

The scheduled completion date of this project is May 1, 1994.

In the interim, PSE&G proposes to do the following actions to reduce the potential for additional violations:

1. Perform an investigation of oil sources within the facility. Where possible, reduce/eliminate oil leakage.

2. Continue with efforts to return the No. 1 skim tank to service.

3. Maintain absorbant boom in the last two manholes prior to the outfall to collect any oil residuals. This boom shall be inspected and replaced periodically.

s. Mathis NLR-E93097 .*

3

• MAR 0 8 1993 PSE&G contends that the oil sheen from the South Yard Drain and the petroleum hydrocarbon violation at the No. 2 skim tank are interrelated and due to a single operational incident. In accordance with NJAC 7:14-8.5(b), these violations should be treated as a single effluent violation. For your information, PSE&G is providing copies of the "Pollution Incident Witness Statements" prepared by the Chemistry personnel who initially performed the sampling of the No. 2 skim tank and discovered the oil sheen on the River.

If you have any questions or require additional information, please contact Pat McCabe of my staff at (609) 339-1245.

Sincerely, f!t;:a~I Manager -

Licensing and Regulation Attachments (2) c Assistant Director of Enforcement NJ Department of Environmental Protection and Energy 401 East State Street CN 029 Trenton, NJ 08625-0029 Petty Officer Steven Garcia

u. s. Coast Guard 1 Washington, Avenue Philadelphia, PA 19147-4395

u. s. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555

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