ML14051A105

Submittal of the 2013 Biocide/Corrosion Treatment Plan Annual Report

ML14051A105
Person / Time
Site:	Sequoyah
Issue date:	02/07/2014
From:	John Carlin Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation, State of TN, Dept of Environment & Conservation
References
Download: ML14051A105 (5)

Text

Tennessee Valley Authority, Post Office Box 2000, Soddy Daisy, Tennessee 37384-2000 February 7, 2014 State of Tennessee Department of Environment and Conservation Division of Water Resources William R. Snodgrass Tennessee Tower 312 Rosa L. Parks Avenue, 11th Floor Nashville, Tennessee 37243

Dear Mr. Patrick Cromer:

TENNESSEE VALLEY AUTHORITY (TVA) - SEQUOYAH NUCLEAR PLANT (SQN) - NPDES PERMIT NO. TN0026450 - 2013 BIOCIDE/CORROSION TREATMENT PLAN (B/CTP) ANNUAL REPORT Enclosed is a copy of the 2013 B/CTP annual report for SQN. All treatments were conducted in accordance with the approved B/CTP.

If you have any questions or need additional information, please contact Spencer Whittier at (423) 843-6714 or by e-mail at sdwhittierLtva.gov of Sequoyah's environmental staff.

/ certify underpenalty of law that this document and all attachments were preparedunder my direction or supervision in accordance with a system designed to assure that qualifiedpersonnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate,and complete. I am aware that there are significantpenalties for submitting false information,including the possibility of fine and imprisonment for knowing violations.

Sinc 6 y, 0 C n e i e resident Sequ ah Nuclear Plant Enclosures cc (Enclosures):

Mr. Vojin Janjid Chattanooga Environmental Field Office State of Tennessee Division of Water Pollution Control Dept. of Environment and Conservation State Office Building, Suite 550 Division of Water Resources 540 McCallie Avenue William R. Snodgrass Tennessee Tower Chattanooga, Tennessee 37402-2013 312 Rosa L. Parks Avenue, 11 th Floor Nashville, Tennessee 37243 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555

TN0026450 SQN 2013 Biocide/Corrosion Treatment Plan Annual Report Biodetergent 73551 Quantiity in Pounds Duration in Hours Analytical Results (lbs/day) (hrs/day)* mass balance calculations (mg/L)

1. of Days in Month 4 Maximum Averacie Limit Maximum 4.

Limit I Maximum Averaae Limit samples

. I Service January 9 9 50 0.5 0.5 0.030 0.030 2.0 3 3 February 9 9 50 0.5 0.5 0.032 0.032 2.0 5 5 March 10 10 50 0.5 0.5 0.039 0.038 2.0 9 9 April 10 10 50 0.5 0.5 0.036 0.036 2.0 6 6 May 10 10 50 0.5 0.5 0.039 0.037 2.0 6 6 June 31 20 50 0.5 0.5 0.036 0.036 2.0 9 9 July 31 30 50 0.5 0.5 0.036 0.036 2.0 8 8 August 31 31 50 0.5 0.5 0.036 0.036 2.0 10 10 September 31 17 50 0.5 0.5 0.036 0.036 2.0 6 6 October November December 31 27 50 0.5 0.5 0.040 0.037 2.0 9 9 Jan. - Dec. 71 71

• Treatment durations shall not exceed 30 minutes at 2-3 times per week into ERCW Train A, ERCW Train B, and RCW systems.

Per the B/CTP approval: "Frequency of use would be appoximately 208 days per year and duration of use would be about 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> per day with a maximum daily usage of 50 lbs/day for all three-injection points."

TN0026450 SQN 2013 Biocide/Corrosion Treatment Plan Annual Report Towerbrom 960 Duration Quantity in Pounds in Hours Analytical Results (lbs/day) (hrs/day) mass balance calculation (mg/L)

1. of Month Maximum Average Limit Maximum I Maximum Average Limit samples Days in Service (based on days in service) I 4. 4 January 540 414 1425 24.00 0.027 0.016 0.10 24 24 February 30 30 1425 4.00 0.027 0.010 0.10 9 9 March 200 164 1425 4.00 0.040 0.020 0.10 12 12 April 500 294 1425 24.00 0.017 0.010 0.10 16 16 May 500 274 1425 24.00 0.026 0.015 0.10 25 24 June 300 175 1425 4.00 0.025 0.012 0.10 25 25 July 250 210 1425 4.00 0.030 0.019 0.10 24 24 August 250 236 1425 4.00 0.026 0.016 0.10 22 22 September 500 254 1425 24.00 0.024 0.016 0.10 24 24 October 500 391 1425 24.00 0.049 0.022 0.10 32 23 November 250 129 1425 4.00 0.087 0.029 0.10 13 11 December 200 117 1425 4.00 0.029 0.016 0.10 20 20 Jan. - Dec. 246 234 Per the B/CTP approval: "Whole Effluent toxicity testing (biomonitoring) of Outfall 101 and Outall 110 shall be undertaken once per year when oxidizing biocides are being used."

Outfall 101: Toxicity was sampled May 12 - 17, 2013.

Test Results: Pimephalespromelas: IC25 >100%

Ceriodaphniadubia: IC25 > 100%

Outfall 110: There has been no discharge from Outfall 110 January - December 2013.

TN0026450 SQN 2013 Biocide/Corrosion Treatment Plan Annual Report Spectrus CT1300 Duration Quantity in Pounds in Hours Analytical Results (lbs/day) (hrs/day) mass balance calculations (mg/L)

1. of Days in Month Maximum Average Limit Maximum Maximum Average Limit Samples Service January February March Apnl May 531 372 855 24.00 0.038 0.038 0.05 7 7 June 531 221 855 24.00 0.038 0.035 0.05 5 5 July 531 295 855 24.00 0.038 0.036 0.05 7 7 August 483 270 855 24.00 0.035 0.035 0.05 5 5 September 531 309 855 24.00 0.038 0.037 0.05 9 9 October November December Jan. - Dec. 33 33 Per the B/CTP approval: "Whole Effluent toxicity testing (biomonitoring) of Outfall 101 and Outall 110 shall be undertaken once per year when non-oxidizing biocides are being used."

Outfall 101: Toxicity was sampled September 15 - 20, 2013 during the Spectrus CT1300 treatment.

Test Results: Pimephalespromelas: IC25 >100%

Ceriodaphniadubia: IC25 > 100%

Outfall 110: There has been no discharge from Outfall 110 January - December 2013.

TN0026450 SQN 2013 Biocide/Corrosion Treatment Plan Annual Report Flogard MS6236 Duration Quantity in Pounds in Hours Analytical Results (lbs/day) (hrs/day) mass balance calculations (mg/L)

1. of Days in Month I Maximum Averaae Limit Maximum I Maximum Average Limit samples Service January February 418 353 2275 24.00 0.032 0.032 0.2 7 7 March 835 534 2275 24.00 0.064 0.047 0.2 31 31 April 418 382 2275 24.00 0.030 0.030 0.2 18 18 May 470 396 2275 24.00 0.064 0.036 0.2 19 19 June 557 313 2275 24.00 0.059 0.041 0.2 30 30 July 609 325 2275 24.00 0.059 0.032 0.2 29 29 August 418 344 2275 24.00 0.030 0.030 0.2 29 29 September 418 358 2275 24.00 0.030 0.030 0.2 22 22 October 139 139 2275 8.00 0.050 0.050 0.2 7 7 November 418 348 2275 24.00 0.050 0.033 0.2 7 7 December 487 374 2275 24.00 0.060 0.033 0.2 29 29 Jan. - Dec. 228 228 Per the B/CTP approval: "Flogard MS6236 is injected into the RCW system continuously, except during periods of other chemical injection due to common injection lines. Flogard MS6236 is injected into the ERCW Train A & B system intermittently."