ML19347E917
| ML19347E917 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 05/11/1981 |
| From: | Elashry M TENNESSEE VALLEY AUTHORITY |
| To: | Patrick J ENVIRONMENTAL PROTECTION AGENCY |
| References | |
| TN0026450, TN26450, NUDOCS 8105140263 | |
| Download: ML19347E917 (2) | |
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,9 TENNESSEE VALLEY AUT'lORITY Nommes. TENNasser 37828 215 Natural Resources Building NAY 1 1 1981 Mr. James R. Patrick, Jr., Chief Compliance Section, Water Enforcement Branch Environmental Protection Agency, Region IV 345 Courtland Street Atlanta, Georgia 30365
Dear Mr. Patrick:
NOTIFICATION OF fl0flCOMPLIANCE WITil EFFLUEfD LIMITATIONS - NPDES PERMIT NO. Til0026450 - SEQUOYAH flVCLEAR PLANT Description of the discharge--Discharge No. 001 - Construction sewage treatment plant effluent. A sample collected on April 27, 1981 had a pH of 5.8 units, less than the minimum permit-limitation of 6.0 units.
Cause and period of the noncompliance--The exact cause of the noncompliance is uncertain; however, the potable water was turned off over the weekend in the area that is served by this plant, and we believe that a resulting 87 percent decrease in flow caused the plant to be overaerated. The pH was 6.5 units on April 24 and 6.2 units on April 28; therefore, the period of noncompliance was less than four days.
Steps taken to reduce, eliminate, and prevent recurrence of the noncomplying discharge--The aeration cycles were adjusted to correct the overacration.
Sodium bicarbonate was added to the plant on April 27 to increase the pH.
Sincerely, Mohamed T. El-Ashry, Ph.D.
Assistant Manager of Natural Resources (Environment) cc:
See page 2 810514 OM3 An Equal Ononttunity Emptovn
F c'
o" Mr. James R. Patrick, Jr.
MAY 1 1 1931 cc: Tennessee Department of Public Health Division of Water Quality Control 621 Cordell Hull Building.
Nashville, Tennessee 37219 Mr. Harold E. Denton, Dir*ector Office of Nuclear Reactor Regulation '
U.S. fluclear Regulatory Commission 7920 Norfolk Avenue Washington, DC 20555 fir. James P. O'Reilly, Director Office of Inspection and Enforcement U.S. Iluclear Regulatory Consission Region II - Suite 3300, 101 Marietta Street Atlanta, Georgia 30303 L