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 under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel 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 significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

Sinc 6 y, 0

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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 Quant iity in Pounds (lbs/day)

Maximum Averacie Limit Duration in Hours (hrs/day)*

Maximum Limit Analytical Results mass balance calculations (mg/L)

Month Maximum

1. of Limit samples Days in Service Averaae 4

4.

I I

January February March April May June July August September October November December Jan. - Dec.

9 9

10 10 10 31 31 31 31 31 9

9 10 10 10 20 30 31 17 50 50 50 50 50 50 50 50 50 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.030 0.032 0.039 0.036 0.039 0.036 0.036 0.036 0.036 0.030 0.032 0.038 0.036 0.037 0.036 0.036 0.036 0.036 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 3

5 9

6 6

9 8

10 6

3 5

9 6

6 9

8 10 6

9 71 27 50 0.5 0.5 0.040 0.037 9

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 Quantity in Pounds (lbs/day)

Duration in Hours (hrs/day)

Analytical Results mass balance calculation (mg/L)

Average

1. of Limit samples Month Maximum Average (based on days in service)

Limit Maximum I Maximum Days in Service I

4.

4 January February March April May June July August September October November December Jan. - Dec.

540 30 200 500 500 300 250 250 500 500 250 200 414 30 164 294 274 175 210 236 254 391 129 117 1425 1425 1425 1425 1425 1425 1425 1425 1425 1425 1425 1425 24.00 4.00 4.00 24.00 24.00 4.00 4.00 4.00 24.00 24.00 4.00 4.00 0.027 0.027 0.040 0.017 0.026 0.025 0.030 0.026 0.024 0.049 0.087 0.029 0.016 0.010 0.020 0.010 0.015 0.012 0.019 0.016 0.016 0.022 0.029 0.016 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 24 9

12 16 25 25 24 22 24 32 13 20 24 9

12 16 24 25 24 22 24 23 11 20 234 246 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: Pimephales promelas: IC25 >100%

Ceriodaphnia dubia: 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: Pimephales promelas: IC25 >100%

Ceriodaphnia dubia: 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 Quantity in Pounds (lbs/day)

Duration in Hours (hrs/day)

Analytical Results mass balance calculations (mg/L)

1. of Limit samples Days in Service Month I Maximum Averaae Limit Maximum I Maximum Average January February March April May June July August September October November December Jan. - Dec.

418 835 418 470 557 609 418 418 139 418 487 353 534 382 396 313 325 344 358 139 348 374 2275 2275 2275 2275 2275 2275 2275 2275 2275 2275 2275 24.00 24.00 24.00 24.00 24.00 24.00 24.00 24.00 8.00 24.00 24.00 0.032 0.032 0.064 0.047 0.030 0.030 0.064 0.036 0.059 0.041 0.059 0.032 0.030 0.030 0.030 0.030 0.050 0.050 0.050 0.033 0.060 0.033 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 7

31 18 19 30 29 29 22 7

7 29 228 7

31 18 19 30 29 29 22 7

7 29 228 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."