ML19346A008

NPDES Noncompliance Notification:On 810507,svc Bldg Sump Discharge Found to Exceed Max Permissible Limit of 20 Mg Per Liter for Average Oil & Grease Concentration.Cleaning Solutions Believed Poured Down Svc Bldg Drains

ML19346A008
Person / Time
Site:	Sequoyah
Issue date:	06/01/1981
From:	Elashry M TENNESSEE VALLEY AUTHORITY
To:	Patrick J ENVIRONMENTAL PROTECTION AGENCY
References
NUDOCS 8106040090
Download: ML19346A008 (2)

Text

~- .. .. .

)

TENN: 'rtt. V ALLi_Y Aill Holdi Y-

-m . u i .. n.3u i- asaae 215 Natural Resources Building JUNE 1 1981

~

Mr. James R. Patrick, Jr. , Deputy Chief Compliance Branch, Enforcement Division Environmental Protection Agency. Region IV 345 Courtland Street, NE Atlanta, Georgia 30365

Dear Mr. Entrick:

NOTIFICATION OF NONCOMPLIANCE WITH EFFLUENT LIMITATIONS - NPDES PERMIT NO. TN0026450 - SEQUOYAH NUCL*AR PLANT Description of the discharge--Discharge No. 019 - Service Building Sump Discharge. Samples collected and anal zed on May 7, 1981' contained a daily average oil _and grease concentration of 28 mg/1, exceeding the maximum permit limitation of 20 mg/1.

Cause and period of the noncompliance--The exact cause is unknown; however, l it is believed that some cleaning solutions were poured down the service [

building drains. This together with the normal very low flows to this ,

sump may have emulsified some of the oil and grease in the sump allowing it to be discharged. A sample collected on April 30, 1981 contained 45 mg/l and the sump was cleaned on May 8, 1981, therefore, the period of noncompliance was probably less than eight days.

Steps taken to reduce, eliminate, and prevent recurrence of the noncomplying discharge--The sump was cleaned on May 8 to end this period of noncompliance.

As a long-term corrective measure, a Design Change Request has been issued to reroute this waste stream to the operation sewage treatment plant (discharge 003) which will provide additional treatment for this waste stream.

Sincerely, Mohamed T..El-Ashry, Ph.D.

Assistant Manager of Natural Resources (Environment) l cc: See page 2 l

i l

l i

I 6106040 0 90

n d

981 JUNE 1 Mr. Jaraes R. Patrick, Jr.

cc: Tennessee Department of Public Health Division of Water Quality Control 621 Cordell Hull Building Nashville, Tennessee 37219 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Washington, DC 20555 Mr. James P. O'Reilly, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission, Region II 101 Marietta Street Atlanta, Georgia 30303