ML15195A402

Response to NRC Request for Additional Information, Dated May 22, 2015 Regarding License Renewal Application, Environmental Review, GW-02 on Water Resources, with Attachments

ML15195A402
Person / Time
Site:	LaSalle
Issue date:	07/02/2015
From:	Exelon Generation Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML15195A351	List: ML15195A340 ML15195A341 ML15195A342 ML15195A343 ML15195A344 ML15195A345 ML15195A346 ML15195A347 ML15195A348 ML15195A349 ML15195A350 ML15195A352 ML15195A353 ML15195A354 ML15195A367 ML15195A368 ML15195A369 ML15195A370 ML15195A371 ML15195A372 ML15195A373 ML15195A374 ML15195A375 ML15195A376 ML15195A377 ML15195A378 ML15195A379 ML15195A380 ML15195A381 ML15195A382 ML15195A383 ML15195A384 ML15195A385 ML15195A386 ML15195A388 ML15195A389 ML15195A390 ML15195A391 ML15195A392 ML15195A393 ML15195A394 ML15195A395 ML15195A396 ML15195A397 ML15195A399 ML15195A400 ML15195A401 ML15195A402 ML15195A403 ML15195A404 ... further results
References
RS-15-179
Download: ML15195A402 (33)

Text

1 LaSalle Environmental Audit Response to Request for Additional Information Index #:

044 RAI #: GW-02 Category: Water Resources Statement of Question:

Provide currently available 2015 tritium concentration data from monitor wells, used to monitor the cleanup of the spill from the Unit 1 Cycled Condensate Tank.

Response

Currently available 2015 results for the Unit 1 Cycled Condensate Storage Tank remediation monitoring are being provided as Attachment 1 to this RAI response.

List of Attachments

1. Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring

RAI # GW-02 ATTACHMENT 1

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 1 of 31 Date/Time pCi/L 1/13/15 8:30 8.17E-07 8.17E+02 1/26/15 11:28 9.17E-07 9.17E+02 2/7/15 11:19 1.30E-06 1.30E+03 2/21/15 11:50 1.30E-06 1.30E+03 3/6/15 9:00 9.64E-07 9.64E+02 3/11/15 7:50 9.94E-07 9.94E+02 3/26/15 10:16 9.17E-07 9.17E+02 3/31/15 7:55 8.23E-07 8.23E+02 4/28/15 8:10 8.95E-07 8.95E+02 5/12/15 7:25 8.76E-07 8.76E+02 5/29/15 10:35 8.75E-07 8.75E+02 6/9/15 8:30 8.82E-07 8.82E+02 Storm Drain Oil Sep Pit Compositor Sample Results

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 2 of 31 SW-LS-101 Sample Results Exelon ENV LLD Water Level Date/Time Activity (pCi/L)

(ft) 3/12/15 13:30 8.29E+02 699.5

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 3 of 31 SW-LS-102 Sample Results Exelon ENV LLD Water Level Date/Time Activity (pCi/L)

(ft) 3/11/15 11:00 8.29E+02 699.5

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 4 of 31 SW-LS-103 Sample Results Exelon ENV LLD Water Level Date/Time Activity (pCi/L)

(ft) 3/11/15 11:10 8.29E+02 699.5

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 5 of 31 Exelon ENV LLD Water Level Date/Time Activity (pCi/L)

(ft) 3/11/15 9:05 8.29E+02 699.5 SW-LS-106 Sample Results

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 6 of 31 HP-2 Sample Results Exelon ENV LLD Date/Time Activity (pCi/L) 1/31/15 10:15 8.15E+02

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 7 of 31 HP-5 Sample Results Exelon ENV LLD Date/Time Activity (pCi/L) 1/31/15 10:40 8.15E+02

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 8 of 31 HP-7 Sample Results Exelon ENV LLD Date/Time Activity (pCi/L) 1/31/15 10:55 8.15E+02

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 9 of 31 HP-10 Sample Results Exelon ENV LLD Date/Time Activity (pCi/L) 1/31/15 10:50 8.15E+02

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 10 of31 MW-LS-104s Sample Results Exelon ENV LLD Water Level Well Bottom Level Water Column Date/Time Activity (pCi/L)

(ft)

(ft)

(ft) 1/13/15 9:05 2.96E+04 9.3 16.8 7.5 1/27/15 8:05 2.75E+04 9.0 17.0 8.0 2/7/15 11:41 2.79E+04 8.9 16.9 8.0 2/21/15 10:58 2.93E+04 9.2 17.1 7.9 3/6/15 11:00 2.86E+04 9.5 17.1 7.6 3/11/15 8:10 2.98E+04 9.3 17.2 7.9 3/31/15 10:15 2.53E+04 9.0 17.0 8.0 4/14/15 10:45 1.91E+04 8.7 17.0 8.3 4/28/15 7:40 2.14E+04 8.7 17.0 8.3 5/12/15 8:45 2.18E+04 8.4 17.0 8.6 5/29/15 11:25 2.61E+04 8.2 17.0 8.8 6/9/15 9:00 1.92E+04 7.0 17.0 10.0

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 11 of 31 MW-LS-105s Sample Result Exelon ENV LLD Date/Time Activity (pCi/L) 1/31/15 11:25 8.15E+02

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 12 of 31 MW-LS-106s Sample Results Exelon ENV LLD Water Level Well Bottom Level Water Column Date/Time Activity (pCi/L)

(ft)

(ft)

(ft) 3/12/15 13:15 8.29E+02 6

15.7 9.7

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 13 of 31 MW-LS-107s Sample Results Exelon ENV LLD Water Level Well Bottom Level Water Column Date/Time Activity (pCi/L)

(ft)

(ft)

(ft) 1/31/15 11:05 8.15E+02

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 14 of 31 MW-LS-111s Sample Results Exelon ENV LLD Water Level Well Bottom Level Water Column Date/Time Activity (pCi/L)

(ft)

(ft)

(ft) 3/11/15 10:50 8.29E-07 0

13.9 13.9

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 15 of 31 TW-LS-115s Sample Results Exelon ENV LLD Water Level Well Bottom Level Water Column Date/Time Activity (pCi/L)

(ft)

(ft)

(ft) 2/3/15 13:35 8.18E+02 2/21/15 10:34 1.30E+03 8.8 18.1 9.3

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 16 of 31 TW-LS-116s Sample Results Exelon ENV LLD Exelon ENV LLD Water Level Well Bottom Level Water Column Date/Time Activity (pCi/L)

Activity (pCi/L)

(ft)

(ft)

(ft) 1/13/15 8:55 9.21E+03 9.21E+03 10.30 17.80 7.50 1/26/15 13:35 8.06E+03 8.06E+12 9.30 17.80 8.50 2/3/15 13:20 8.24E+03 8.24E+12 2/7/15 11:33 9.44E+03 9.44E+12 9.50 17.90 8.40 2/21/15 10:55 9.24E+03 9.24E+12 9.00 17.90 8.90 3/6/15 10:20 7.89E+03 7.89E+12 9.00 17.90 8.90 3/26/15 10:31 8.66E+03 8.66E+12 8.70 17.90 9.20 3/31/15 8:15 1.24E+04 1.24E+13 8.70 17.90 9.20 4/14/15 11:00 7.70E+03 7.70E+12 9.30 17.90 8.60 5/12/15 7:55 1.07E+04 1.07E+13 9.00 18.00 9.00 5/29/15 10:55 1.19E+04 1.19E+13 8.40 17.80 9.40 6/9/15 8:56 1.14E+04 1.14E+13 8.80 17.90 9.10

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 17 of 31 TW-LS-118s Sample Results Exelon ENV LLD Water Level Well Bottom Level Water Column Date/Time Activity (pCi/L)

(ft)

(ft)

(ft) 1/13/15 8:45 2.27E+04 9.2 18.1 8.9 1/27/15 7:45 2.54E+04 9.3 18.3 9.0 2/3/15 13:25 2.47E+04 2/7/15 11:28 2.46E+04 9.1 18.4 9.3 2/21/15 10:50 2.60E+04 9.2 18.5 9.3 3/6/15 10:10 2.33E+04 9.3 18.4 9.1 3/26/15 10:27 2.36E+04 9.0 18.3 9.3 3/31/15 8:10 2.63E+04 9.0 18.4 9.4 4/14/15 11:05 2.68E+04 8.9 18.3 9.4 5/12/15 7:45 2.32E+04 8.8 18.3 9.5 5/29/15 10:50 1.90E+04 8.8 17.2 8.4 6/9/15 8:49 1.72E+04 8.8 17.5 8.7

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 18 of 31 TW-LS-119s Sample Results Exelon ENV LLD Water Level Well Bottom Level Water Column Date/Time Activity (pCi/L)

(ft)

(ft)

(ft) 1/13/15 8:15 8.17E+02 6.0 13.8 7.8 1/26/15 13:20 9.17E+11 5.8 14.1 8.3 2/3/15 13:10 8.18E+11 2/7/15 10:48 1.30E+12 5.4 14.1 8.7 2/21/15 10:20 1.30E+12 5.5 14.1 8.6 3/6/15 13:30 9.16E+11 6.0 14.3 8.3 3/31/15 10:20 8.23E+11 5.1 14.0 8.9 4/14/15 12:53 9.20E+11 5.1 14.1 9.0 4/28/15 9:10 8.95E+11 5.0 14.1 9.1 5/12/15 8:15 8.76E+11 4.6 14.0 9.4 5/29/15 10:45 8.75E+11 4.4 14.0 9.6 6/9/15 9:17 8.82E+11 4.8 14.0 9.2

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 19 of 31 TW-LS-120s Sample Results Exelon ENV LLD Water Level Well Bottom Level Water Column Date/Time Activity (pCi/L)

(ft)

(ft)

(ft) 1/13/15 7:45 8.17E+02 6.3 11.3 5.0 1/26/15 13:20 9.17E-07 9.17E+02 6.1 11.3 5.2 2/3/15 13:10 8.18E-07 8.18E+02 2/7/15 10:48 1.30E-06 1.30E+03 5.8 11.3 5.5 2/21/15 10:25 1.30E-06 1.30E+03 5.9 11.3 5.4 3/6/15 10:25 9.64E-07 9.64E+02 6.6 11.6 5.0 3/26/15 11:03 9.17E-07 9.17E+02 6.1 11.3 5.2 3/31/15 10:35 8.23E-07 8.23E+02 6.1 11.4 5.3 4/14/15 12:59 9.20E-07 9.20E+02 5.9 11.3 5.4 4/28/15 9:15 8.95E-07 8.95E+02 5.9 11.4 5.5 5/12/15 8:25 8.76E-07 8.76E+02 5.5 11.5 6.0 5/29/15 11:15 8.75E-07 8.75E+02 5.4 11.4 6.0 6/9/15 9:22 8.82E-07 8.82E+02 5.0 11.3 6.3

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 20 of 31 TW-LS-121s Sample Results Exelon ENV LLD Water Level Well Bottom Level Water Column Date/Time Activity (pCi/L)

(ft)

(ft)

(ft) 1/13/15 8:35 8.17E+02 8.3 11.6 3.3 1/27/15 7:35 9.17E+11 8.3 11.7 3.4 2/3/15 13:45 8.18E+11 2/7/15 11:06 1.30E+12 8.0 12.0 4.0 2/21/15 10:36 1.30E+12 8.1 11.8 3.7 3/6/15 9:00 9.64E+11 8.5 11.9 3.4 3/26/15 10:21 9.17E+11 8.0 11.8 3.8 3/31/15 8:05 8.23E+11 8.2 12.0 3.8 4/14/15 11:15 9.20E+11 7.8 11.8 4.0 4/28/15 8:25 8.95E+11 7.9 11.9 4.0 5/12/15 8:05 8.76E+11 7.4 11.8 4.4 5/29/15 10:45 8.75E+11 7.5 11.8 4.3 6/9/15 8:45 8.82E+11 7.2 11.8 4.6

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 21 of 31 RW-LS-100s Sample Results Exelon ENV LLD Date/Time Activity (pCi/L)

Totalizer 1 Totalizer 2 Discharge Flow (gpm)

Water Discharge Volume (gal)

Activity discharged (pCi)

Activity discharged (Ci) 100s Cumulative Activity discharged (Ci) 101s Cumulative Activity discharged (Ci)

Total Cumulative Activity discharged (Ci) 01/03/15 14:08 5.82E-05 5.82E+04 848526 848526 1.52 2275 5.012E+08 5.01E-04 3.29E-01 6.51E-02 3.94E-01 01/04/15 14:23 5.47E-05 5.47E+04 850801 850801 1.59 1944 4.025E+08 4.03E-04 3.29E-01 6.52E-02 3.94E-01 01/05/15 10:55 5.42E-05 5.42E+04 852745 852745 1.58 1945 3.991E+08 3.99E-04 3.30E-01 6.52E-02 3.95E-01 01/06/15 07:15 5.35E-05 5.35E+04 854690 854690 1.60 2465 4.992E+08 4.99E-04 3.30E-01 6.53E-02 3.95E-01 01/07/15 08:25 5.26E-05 5.26E+04 857155 857155 1.64 2664 5.304E+08 5.30E-04 3.31E-01 6.54E-02 3.96E-01 01/08/15 11:00 5.15E-05 5.15E+04 859819 859819 1.67 2121 4.135E+08 4.13E-04 3.31E-01 6.54E-02 3.96E-01 01/09/15 07:55 4.67E-05 4.67E+04 861940 861940 1.69 3214 5.682E+08 5.68E-04 3.32E-01 6.54E-02 3.97E-01 01/10/15 15:15 4.75E-05 4.75E+04 865154 865154 1.72 2343 4.213E+08 4.21E-04 3.32E-01 6.55E-02 3.97E-01 01/11/15 14:30 4.56E-05 4.56E+04 867497 867497 1.68 2013 3.475E+08 3.47E-04 3.32E-01 6.55E-02 3.98E-01 01/12/15 10:10 4.52E-05 4.52E+04 869510 869510 1.71 2343 4.009E+08 4.01E-04 3.33E-01 6.56E-02 3.98E-01 01/13/15 08:00 4.67E-05 4.67E+04 871853 871753 1.72 2442 4.317E+08 4.32E-04 3.33E-01 6.57E-02 3.99E-01 01/14/15 08:50 4.75E-05 4.75E+04 874295 874295 1.73 2071 3.724E+08 3.72E-04 3.34E-01 6.57E-02 3.99E-01 01/15/15 05:00 4.68E-05 4.68E+04 876366 876366 1.71 2669 4.728E+08 4.73E-04 3.34E-01 6.59E-02 4.00E-01 01/16/15 07:30 4.70E-05 4.70E+04 879035 879035 1.69 3151 5.606E+08 5.61E-04 3.35E-01 6.61E-02 4.01E-01 01/17/15 14:41 4.66E-05 4.66E+04 882186 882186 1.70 2499 4.408E+08 4.41E-04 3.35E-01 6.62E-02 4.01E-01 01/18/15 14:51 4.60E-05 4.60E+04 884685 884685 1.71 2589 4.508E+08 4.51E-04 3.35E-01 6.64E-02 4.02E-01 01/19/15 15:28 4.71E-05 4.71E+04 887274 887274 1.75 1826 3.256E+08 3.26E-04 3.36E-01 6.65E-02 4.02E-01 01/20/15 08:42 4.94E-05 4.94E+04 889100 889100 1.77 2455 4.591E+08 4.59E-04 3.36E-01 6.66E-02 4.03E-01 01/21/15 07:45 4.61E-05 4.61E+04 891555 891555 1.78 2578 4.499E+08 4.50E-04 3.37E-01 6.67E-02 4.03E-01 01/22/15 07:10 4.55E-05 4.55E+04 894133 894133 1.84 2810 4.840E+08 4.84E-04 3.37E-01 6.69E-02 4.04E-01 01/23/15 08:25 4.47E-05 4.47E+04 896943 896943 1.94 3396 5.746E+08 5.75E-04 3.38E-01 6.71E-02 4.05E-01 01/24/15 14:32 4.41E-05 4.41E+04 900339 900339 1.89 2687 4.486E+08 4.49E-04 3.38E-01 6.72E-02 4.05E-01 01/25/15 14:35 4.32E-05 4.32E+04 903026 903026 1.86 1970 3.222E+08 3.22E-04 3.39E-01 6.73E-02 4.06E-01 01/26/15 08:21 4.37E-05 4.37E+04 904996 904996 1.85 2566 4.245E+08 4.24E-04 3.39E-01 6.75E-02 4.06E-01 01/27/15 07:20 4.29E-05 4.29E+04 907562 907562 1.87 2786 4.524E+08 4.52E-04 3.39E-01 6.76E-02 4.07E-01 01/28/15 07:56 3.95E-05 3.95E+04 910348 910348 1.89 2792 4.175E+08 4.17E-04 3.40E-01 6.78E-02 4.08E-01 01/29/15 08:12 3.95E-05 3.95E+04 913140 913140 1.92 2660 3.977E+08 3.98E-04 3.40E-01 6.79E-02 4.08E-01 01/30/15 07:00 3.95E-05 3.95E+04 915800 915800 1.93 3305 4.942E+08 4.94E-04 3.41E-01 6.80E-02 4.09E-01 01/31/15 11:17 4.15E-05 4.15E+04 919105 919105 1.96 2293 3.602E+08 3.60E-04 3.41E-01 6.82E-02 4.09E-01 02/01/15 08:30 4.15E-05 4.15E+04 921398 921398 1.78 5476 8.602E+08 8.60E-04 3.42E-01 6.85E-02 4.10E-01 02/03/15 10:20 4.22E-05 4.22E+04 926874 926874 1.86 2619 4.184E+08 4.18E-04 3.42E-01 6.87E-02 4.11E-01 02/04/15 10:43 4.22E-05 4.22E+04 929493 929493 1.79 2697 4.308E+08 4.31E-04 3.43E-01 6.89E-02 4.12E-01 02/05/15 11:28 4.22E-05 4.22E+04 932190 932190 1.82 5608 8.958E+08 8.96E-04 3.44E-01 6.93E-02 4.13E-01 02/07/15 13:42 4.22E-05 4.22E+04 937798 937798 1.86 2357 3.765E+08 3.77E-04 3.44E-01 6.95E-02 4.14E-01 02/08/15 10:25 4.22E-05 4.22E+04 940155 940155 1.89 2386 3.811E+08 3.81E-04 3.44E-01 6.96E-02 4.14E-01

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 22 of 31 RW-LS-100s Sample Results Exelon ENV LLD Date/Time Activity (pCi/L)

Totalizer 1 Totalizer 2 Discharge Flow (gpm)

Water Discharge Volume (gal)

Activity discharged (pCi)

Activity discharged (Ci) 100s Cumulative Activity discharged (Ci) 101s Cumulative Activity discharged (Ci)

Total Cumulative Activity discharged (Ci) 02/09/15 07:00 4.22E-05 4.22E+04 942541 942541 1.92 2762 4.412E+08 4.41E-04 3.45E-01 6.99E-02 4.15E-01 02/10/15 07:00 3.72E-05 3.72E+04 945303 945303 1.94 2832 3.988E+08 3.99E-04 3.45E-01 7.01E-02 4.15E-01 02/11/15 07:48 3.72E-05 3.72E+04 948135 948135 1.91 3454 4.864E+08 4.86E-04 3.46E-01 7.04E-02 4.16E-01 02/12/15 13:21 3.72E-05 3.72E+04 951589 951589 1.95 2549 3.589E+08 3.59E-04 3.46E-01 7.06E-02 4.17E-01 02/13/15 10:57 3.72E-05 3.72E+04 954138 954138 1.98 2512 3.537E+08 3.54E-04 3.46E-01 7.08E-02 4.17E-01 02/14/15 07:51 3.72E-05 3.72E+04 956650 956650 2.01 2909 4.096E+08 4.10E-04 3.47E-01 7.11E-02 4.18E-01 02/15/15 08:00 3.72E-05 3.72E+04 959559 959559 2.00 2851 4.015E+08 4.01E-04 3.47E-01 7.13E-02 4.19E-01 02/16/15 07:30 3.72E-05 3.72E+04 962410 962410 2.01 2897 4.079E+08 4.08E-04 3.48E-01 7.15E-02 4.19E-01 02/17/15 07:14 3.75E-05 3.75E+04 965307 965307 2.03 547 7.765E+07 7.76E-05 3.48E-01 7.17E-02 4.20E-01 02/18/15 08:10 3.75E-05 3.75E+04 965854 965854 2.19 7

9.937E+05 9.94E-07 3.48E-01 7.19E-02 4.20E-01 02/19/15 07:10 3.75E-05 3.75E+04 965861 965861 1.22 1

1.420E+05 1.42E-07 3.48E-01 7.21E-02 4.20E-01 02/20/15 11:05 3.75E-05 3.75E+04 965862 965862 0.00 2913 4.135E+08 4.14E-04 3.48E-01 7.24E-02 4.21E-01 02/21/15 11:25 3.75E-05 3.75E+04 968775 968775 2.00 2773 3.936E+08 3.94E-04 3.49E-01 7.25E-02 4.21E-01 02/22/15 10:06 3.75E-05 3.75E+04 971548 971548 2.06 2870 4.074E+08 4.07E-04 3.49E-01 7.27E-02 4.22E-01 02/23/15 09:00 3.75E-05 3.75E+04 974418 974418 2.11 3054 4.335E+08 4.34E-04 3.49E-01 7.28E-02 4.22E-01 02/24/15 08:00 3.48E-05 3.48E+04 977472 977472 2.25 3659 4.820E+08 4.82E-04 3.50E-01 7.30E-02 4.23E-01 02/25/15 11:07 3.48E-05 3.48E+04 981131 981131 2.28 2751 3.624E+08 3.62E-04 3.50E-01 7.31E-02 4.23E-01 02/26/15 07:00 3.48E-05 3.48E+04 983882 983882 2.33 4033 5.313E+08 5.31E-04 3.51E-01 7.33E-02 4.24E-01 02/27/15 11:12 3.48E-05 3.48E+04 987915 987915 2.41 3478 4.582E+08 4.58E-04 3.51E-01 7.34E-02 4.25E-01 02/28/15 10:40 3.48E-05 3.48E+04 991393 991393 2.50 3223 4.246E+08 4.25E-04 3.52E-01 7.35E-02 4.25E-01 03/01/15 08:43 3.48E-05 3.48E+04 994616 994616 2.46 4241 5.587E+08 5.59E-04 3.52E-01 7.36E-02 4.26E-01 03/02/15 12:40 3.48E-05 3.48E+04 998857 998857 2.55 3103 4.088E+08 4.09E-04 3.53E-01 7.38E-02 4.26E-01 03/03/15 08:40 3.52E-05 3.52E+04 1001960 1001960 2.62 4020 5.357E+08 5.36E-04 3.53E-01 7.39E-02 4.27E-01 03/04/15 10:10 3.52E-05 3.52E+04 1005980 1005980 2.67 5460 7.275E+08 7.28E-04 3.54E-01 7.40E-02 4.28E-01 03/05/15 19:30 3.52E-05 3.52E+04 1011440 1011440 2.77 2550 3.398E+08 3.40E-04 3.54E-01 7.41E-02 4.28E-01 03/06/15 10:45 3.52E-05 3.52E+04 1013990 1013990 2.81 4870 6.489E+08 6.49E-04 3.55E-01 7.42E-02 4.29E-01 03/07/15 15:13 3.52E-05 3.52E+04 1018860 1018860 2.86 3910 5.210E+08 5.21E-04 3.55E-01 7.43E-02 4.30E-01 03/08/15 14:45 3.52E-05 3.52E+04 1022770 1022770 2.92 2930 3.904E+08 3.90E-04 3.56E-01 7.44E-02 4.30E-01 03/09/15 07:30 3.52E-05 3.52E+04 1025700 1025700 2.91 4120 5.490E+08 5.49E-04 3.56E-01 7.45E-02 4.31E-01 03/10/15 07:00 3.65E-05 3.65E+04 1029820 1029820 2.92 4070 5.623E+08 5.62E-04 3.57E-01 7.46E-02 4.32E-01 03/11/15 07:35 3.65E-05 3.65E+04 1033890 1033890 2.80 1970 2.722E+08 2.72E-04 3.57E-01 7.47E-02 4.32E-01 03/12/15 07:00 3.65E-05 3.65E+04 1035860 1035860 2.70 6840 9.451E+08 9.45E-04 3.58E-01 7.48E-02 4.33E-01 03/13/15 10:40 3.65E-05 3.65E+04 1042700 1042700 2.78 4290 5.927E+08 5.93E-04 3.59E-01 7.49E-02 4.34E-01 03/14/15 13:15 3.65E-05 3.65E+04 1046990 1046990 2.83 3560 4.919E+08 4.92E-04 3.59E-01 7.49E-02 4.34E-01 03/15/15 10:25 3.65E-05 3.65E+04 1050550 1050550 2.75 3630 5.015E+08 5.02E-04 3.60E-01 7.50E-02 4.35E-01

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 23 of 31 RW-LS-100s Sample Results Exelon ENV LLD Date/Time Activity (pCi/L)

Totalizer 1 Totalizer 2 Discharge Flow (gpm)

Water Discharge Volume (gal)

Activity discharged (pCi)

Activity discharged (Ci) 100s Cumulative Activity discharged (Ci) 101s Cumulative Activity discharged (Ci)

Total Cumulative Activity discharged (Ci) 03/16/15 08:05 3.65E-05 3.65E+04 1054180 1054180 2.77 3840 5.306E+08 5.31E-04 3.60E-01 7.51E-02 4.35E-01 03/17/15 07:10 3.51E-05 3.51E+04 1058020 1058020 2.72 4540 6.032E+08 6.03E-04 3.61E-01 7.52E-02 4.36E-01 03/18/15 00:07 3.51E-05 3.51E+04 1062560 1062560 2.61 3940 5.235E+08 5.23E-04 3.61E-01 7.53E-02 4.37E-01 03/19/15 13:25 3.51E-05 3.51E+04 1066500 1066500 2.64 3010 3.999E+08 4.00E-04 3.62E-01 7.54E-02 4.37E-01 03/20/15 08:10 3.51E-05 3.51E+04 1069510 1069510 2.68 6200 8.238E+08 8.24E-04 3.63E-01 7.57E-02 4.38E-01 03/22/15 15:56 3.51E-05 3.51E+04 1075710 1075710 1.79 1870 2.485E+08 2.48E-04 3.63E-01 7.58E-02 4.39E-01 03/23/15 09:00 3.51E-05 3.51E+04 1077580 1077580 1.81 2530 3.362E+08 3.36E-04 3.63E-01 7.59E-02 4.39E-01 03/24/15 09:00 3.30E-05 3.30E+04 1080110 1080110 1.73 2400 2.998E+08 3.00E-04 3.63E-01 7.60E-02 4.39E-01 03/25/15 08:15 3.30E-05 3.30E+04 1082510 1082510 1.65 2490 3.110E+08 3.11E-04 3.64E-01 7.61E-02 4.40E-01 03/26/15 09:00 3.30E-05 3.30E+04 1085000 1085000 1.66 2230 2.786E+08 2.79E-04 3.64E-01 7.63E-02 4.40E-01 03/27/15 07:30 3.30E-05 3.30E+04 1087230 1087230 1.60 3020 3.773E+08 3.77E-04 3.64E-01 7.64E-02 4.41E-01 03/28/15 15:15 3.30E-05 3.30E+04 1090250 1090250 1.57 2260 2.823E+08 2.82E-04 3.65E-01 7.66E-02 4.41E-01 03/29/15 15:35 3.30E-05 3.30E+04 1092510 1092510 1.52 1580 1.974E+08 1.97E-04 3.65E-01 7.67E-02 4.42E-01 03/30/15 08:54 3.30E-05 3.30E+04 1094090 1094090 1.51 2060 2.573E+08 2.57E-04 3.65E-01 7.68E-02 4.42E-01 03/31/15 07:20 3.08E-05 3.08E+04 1096150 1096150 1.48 2410 2.810E+08 2.81E-04 3.65E-01 7.69E-02 4.42E-01 04/01/15 09:15 3.08E-05 3.08E+04 1098560 1098560 1.52 2140 2.495E+08 2.50E-04 3.66E-01 7.71E-02 4.43E-01 04/02/15 08:35 3.08E-05 3.08E+04 1100700 1100700 1.49 2210 2.577E+08 2.58E-04 3.66E-01 7.73E-02 4.43E-01 04/03/15 09:05 3.08E-05 3.08E+04 1102910 1102910 1.49 2630 3.066E+08 3.07E-04 3.66E-01 7.75E-02 4.44E-01 04/04/15 15:00 3.08E-05 3.08E+04 1105540 1105540 1.47 2100 2.448E+08 2.45E-04 3.67E-01 7.76E-02 4.44E-01 04/05/15 14:50 3.08E-05 3.08E+04 1107640 1107640 1.46 1520 1.772E+08 1.77E-04 3.67E-01 7.77E-02 4.44E-01 04/06/15 08:20 3.08E-05 3.08E+04 1109160 1109160 1.42 2050 2.390E+08 2.39E-04 3.67E-01 7.79E-02 4.45E-01 04/07/15 08:20 2.82E-05 2.82E+04 1111210 1111210 1.39 2090 2.231E+08 2.23E-04 3.67E-01 7.81E-02 4.45E-01 04/08/15 07:15 2.82E-05 2.82E+04 1113300 1113300 1.50 2520 2.690E+08 2.69E-04 3.67E-01 7.83E-02 4.46E-01 04/09/15 11:19 2.82E-05 2.82E+04 1115820 1115820 1.48 1900 2.028E+08 2.03E-04 3.68E-01 7.85E-02 4.46E-01 04/10/15 08:25 2.82E-05 2.82E+04 1117720 1117720 1.43 2960 3.160E+08 3.16E-04 3.68E-01 7.87E-02 4.47E-01 04/11/15 14:25 2.82E-05 2.82E+04 1120680 1120680 1.67 2420 2.583E+08 2.58E-04 3.68E-01 7.89E-02 4.47E-01 04/12/15 14:45 2.82E-05 2.82E+04 1123100 1123100 1.64 1890 2.018E+08 2.02E-04 3.68E-01 7.90E-02 4.47E-01 04/13/15 10:10 2.82E-05 2.82E+04 1124990 1124990 1.60 2130 2.274E+08 2.27E-04 3.69E-01 7.92E-02 4.48E-01 04/14/15 08:30 2.59E-05 2.59E+04 1127120 1127120 1.56 2320 2.275E+08 2.27E-04 3.69E-01 7.93E-02 4.48E-01 04/15/15 09:10 2.59E-05 2.59E+04 1129440 1129440 1.54 2050 2.010E+08 2.01E-04 3.69E-01 7.95E-02 4.49E-01 04/16/15 07:20 2.59E-05 2.59E+04 1131490 1131490 1.52 2300 2.255E+08 2.25E-04 3.69E-01 7.97E-02 4.49E-01 04/17/15 08:04 2.59E-05 2.59E+04 1133790 1133790 1.52 3180 3.118E+08 3.12E-04 3.70E-01 8.00E-02 4.50E-01 04/18/15 18:40 2.59E-05 2.59E+04 1136970 1136970 1.51 1770 1.735E+08 1.74E-04 3.70E-01 8.01E-02 4.50E-01 04/19/15 14:30 2.59E-05 2.59E+04 1138740 1138740 1.50 1560 1.529E+08 1.53E-04 3.70E-01 8.03E-02 4.50E-01 04/20/15 08:00 2.59E-05 2.59E+04 1140300 1140300 1.44 2250 2.206E+08 2.21E-04 3.70E-01 8.05E-02 4.51E-01

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 24 of 31 RW-LS-100s Sample Results Exelon ENV LLD Date/Time Activity (pCi/L)

Totalizer 1 Totalizer 2 Discharge Flow (gpm)

Water Discharge Volume (gal)

Activity discharged (pCi)

Activity discharged (Ci) 100s Cumulative Activity discharged (Ci) 101s Cumulative Activity discharged (Ci)

Total Cumulative Activity discharged (Ci) 04/21/15 09:30 2.35E-05 2.35E+04 1142550 1142550 1.47 2110 1.877E+08 1.88E-04 3.70E-01 8.07E-02 4.51E-01 04/22/15 08:30 2.35E-05 2.35E+04 1144660 1144660 1.51 2200 1.957E+08 1.96E-04 3.71E-01 8.09E-02 4.51E-01 04/23/15 09:00 2.35E-05 2.35E+04 1146860 1146860 1.45 2160 1.921E+08 1.92E-04 3.71E-01 8.11E-02 4.52E-01 04/24/15 08:40 2.35E-05 2.35E+04 1149020 1149020 1.50 2600 2.313E+08 2.31E-04 3.71E-01 8.13E-02 4.52E-01 04/25/15 13:02 2.35E-05 2.35E+04 1151620 1151620 1.49 2170 1.930E+08 1.93E-04 3.71E-01 8.16E-02 4.53E-01 04/26/15 13:05 2.35E-05 2.35E+04 1153790 1153790 1.53 1680 1.494E+08 1.49E-04 3.71E-01 8.18E-02 4.53E-01 04/27/15 07:40 2.35E-05 2.35E+04 1155470 1155470 1.47 2260 2.010E+08 2.01E-04 3.72E-01 8.21E-02 4.54E-01 04/28/15 08:45 2.29E-05 2.29E+04 1157730 1157730 1.46 2080 1.803E+08 1.80E-04 3.72E-01 8.24E-02 4.54E-01 04/29/15 07:50 2.29E-05 2.29E+04 1159810 1159810 1.46 2390 2.072E+08 2.07E-04 3.72E-01 8.27E-02 4.55E-01 04/30/15 10:30 2.29E-05 2.29E+04 1162200 1162200 1.47 1720 1.491E+08 1.49E-04 3.72E-01 8.29E-02 4.55E-01 05/01/15 06:00 2.29E-05 2.29E+04 1163920 1163920 1.43 2890 2.505E+08 2.51E-04 3.72E-01 8.33E-02 4.56E-01 05/02/15 14:15 2.29E-05 2.29E+04 1166810 1166810 1.57 2160 1.872E+08 1.87E-04 3.72E-01 8.36E-02 4.56E-01 05/03/15 14:16 2.29E-05 2.29E+04 1168970 1168970 1.50 2110 1.829E+08 1.83E-04 3.73E-01 8.39E-02 4.57E-01 05/04/15 13:50 2.29E-05 2.29E+04 1171080 1171080 1.51 1730 1.500E+08 1.50E-04 3.73E-01 8.41E-02 4.57E-01 05/05/15 09:05 1.75E-05 1.75E+04 1172810 1172810 1.45 1830 1.212E+08 1.21E-04 3.73E-01 8.45E-02 4.57E-01 05/06/15 12:45 1.75E-05 1.75E+04 1174640 1174640 1.15 1600 1.060E+08 1.06E-04 3.73E-01 8.49E-02 4.58E-01 05/07/15 12:00 1.75E-05 1.75E+04 1176240 1176240 1.16 1380 9.142E+07 9.14E-05 3.73E-01 8.52E-02 4.58E-01 05/08/15 08:00 1.75E-05 1.75E+04 1177620 1177620 1.14 2150 1.424E+08 1.42E-04 3.73E-01 8.57E-02 4.59E-01 05/09/15 00:07 1.75E-05 1.75E+04 1179770 1179770 1.16 1620 1.073E+08 1.07E-04 3.73E-01 8.61E-02 4.60E-01 05/10/15 15:10 1.75E-05 1.75E+04 1181390 1181390 1.15 1480 9.804E+07 9.80E-05 3.73E-01 8.65E-02 4.60E-01 05/11/15 12:45 1.75E-05 1.75E+04 1182870 1182870 1.14 1450 9.605E+07 9.61E-05 3.74E-01 8.69E-02 4.60E-01 05/12/15 10:16 1.23E-05 1.23E+04 1184320 1184320 1.12 1620 7.543E+07 7.54E-05 3.74E-01 8.73E-02 4.61E-01 05/13/15 10:10 1.23E-05 1.23E+04 1185940 1185940 1.13 1520 7.077E+07 7.08E-05 3.74E-01 8.77E-02 4.61E-01 05/14/15 08:05 1.23E-05 1.23E+04 1187460 1187460 1.14 2080 9.685E+07 9.68E-05 3.74E-01 8.83E-02 4.62E-01 05/15/15 12:45 1.23E-05 1.23E+04 1189540 1189540 1.86 3230 1.504E+08 1.50E-04 3.74E-01 8.88E-02 4.63E-01 05/16/15 17:36 1.23E-05 1.23E+04 1192770 1192770 1.89 2310 1.076E+08 1.08E-04 3.74E-01 8.92E-02 4.63E-01 05/17/15 14:25 1.23E-05 1.23E+04 1195080 1195080 1.88 2080 9.685E+07 9.68E-05 3.74E-01 8.95E-02 4.64E-01 05/18/15 09:00 1.23E-05 1.23E+04 1197160 1197160 1.68 2320 1.080E+08 1.08E-04 3.74E-01 8.99E-02 4.64E-01 05/19/15 07:50 1.31E-05 1.31E+04 1199480 1199480 1.67 0

0.000E+00 0.00E+00 3.74E-01 9.03E-02 4.65E-01 05/20/15 09:50 1.31E-05 1.31E+04 1199480 1199480 0.00 2150 1.066E+08 1.07E-04 3.74E-01 9.07E-02 4.65E-01 05/21/15 10:25 1.31E-05 1.31E+04 1201630 1201630 1.46 1910 9.471E+07 9.47E-05 3.74E-01 9.10E-02 4.65E-01 05/22/15 08:20 1.31E-05 1.31E+04 1203540 1203540 1.42 2520 1.250E+08 1.25E-04 3.75E-01 9.14E-02 4.66E-01 05/23/15 14:44 1.31E-05 1.31E+04 1206060 1206060 1.33 1960 9.719E+07 9.72E-05 3.75E-01 9.18E-02 4.67E-01 05/24/15 16:23 1.31E-05 1.31E+04 1208020 1208020 1.23 1360 6.744E+07 6.74E-05 3.75E-01 9.21E-02 4.67E-01 05/25/15 11:30 1.31E-05 1.31E+04 1209380 1209380 1.15 2460 1.220E+08 1.22E-04 3.75E-01 9.25E-02 4.67E-01

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 25 of 31 RW-LS-100s Sample Results Exelon ENV LLD Date/Time Activity (pCi/L)

Totalizer 1 Totalizer 2 Discharge Flow (gpm)

Water Discharge Volume (gal)

Activity discharged (pCi)

Activity discharged (Ci) 100s Cumulative Activity discharged (Ci) 101s Cumulative Activity discharged (Ci)

Total Cumulative Activity discharged (Ci) 05/26/15 11:08 1.25E-05 1.25E+04 1211840 1211840 1.83 3230 1.528E+08 1.53E-04 3.75E-01 9.29E-02 4.68E-01 05/27/15 11:30 1.25E-05 1.25E+04 1215070 1215070 2.18 3030 1.434E+08 1.43E-04 3.75E-01 9.30E-02 4.68E-01 05/28/15 10:50 1.25E-05 1.25E+04 1218100 1218100 2.13 3050 1.443E+08 1.44E-04 3.75E-01 9.33E-02 4.69E-01 05/29/15 11:35 1.25E-05 1.25E+04 1221150 1221150 2.06 3630 1.718E+08 1.72E-04 3.76E-01 9.36E-02 4.69E-01 05/30/15 17:40 1.25E-05 1.25E+04 1224780 1224780 1.89 2350 1.112E+08 1.11E-04 3.76E-01 9.40E-02 4.70E-01 05/31/15 14:13 1.25E-05 1.25E+04 1227130 1227130 1.88 2260 1.069E+08 1.07E-04 3.76E-01 9.42E-02 4.70E-01 06/01/15 10:10 1.25E-05 1.25E+04 1229390 1229390 1.85 2470 1.169E+08 1.17E-04 3.76E-01 9.44E-02 4.70E-01 06/02/15 08:20 1.23E-05 1.23E+04 1231860 1231860 1.85 2710 1.262E+08 1.26E-04 3.76E-01 9.46E-02 4.71E-01 06/03/15 10:10 1.23E-05 1.23E+04 1234570 1234570 1.73 2510 1.169E+08 1.17E-04 3.76E-01 9.49E-02 4.71E-01 06/04/15 10:25 1.23E-05 1.23E+04 1237080 1237080 1.69 2130 9.917E+07 9.92E-05 3.76E-01 9.51E-02 4.71E-01 06/05/15 07:30 1.23E-05 1.23E+04 1239210 1239210 1.65 3200 1.490E+08 1.49E-04 3.76E-01 9.55E-02 4.72E-01 06/06/15 14:40 1.23E-05 1.23E+04 1242410 1242410 1.70 2480 1.155E+08 1.15E-04 3.76E-01 9.58E-02 4.72E-01 06/07/15 15:35 1.23E-05 1.23E+04 1244890 1244890 1.65 1710 7.962E+07 7.96E-05 3.77E-01 9.60E-02 4.73E-01 06/08/15 09:00 1.23E-05 1.23E+04 1246600 1246600 1.62 2170 1.010E+08 1.01E-04 3.77E-01 9.63E-02 4.73E-01 06/09/15 07:25 1.12E-05 1.12E+04 1248770 1248770 1.57 2300 9.751E+07 9.75E-05 3.77E-01 9.65E-02 4.73E-01 06/10/15 07:55 1.12E-05 1.12E+04 1251070 1251070 1.49 2240 9.497E+07 9.50E-05 3.77E-01 9.68E-02 4.74E-01 06/11/15 08:50 1.12E-05 1.12E+04 1253310 1253310 1.44 2190 9.285E+07 9.28E-05 3.77E-01 9.71E-02 4.74E-01 06/12/15 10:30 1.12E-05 1.12E+04 1255500 1255500 1.41 2390 1.013E+08 1.01E-04 3.77E-01 9.74E-02 4.74E-01 06/13/15 15:00 1.12E-05 1.12E+04 1257890 1257890 1.39 1930 8.183E+07 8.18E-05 3.77E-01 9.76E-02 4.75E-01 06/14/15 14:10 1.12E-05 1.12E+04 1259820 1259820 1.47 1760 7.462E+07 7.46E-05 3.77E-01 9.78E-02 4.75E-01 06/15/15 10:30 1.12E-05 1.12E+04 1261580 1261580 1.39 1710 7.250E+07 7.25E-05 3.77E-01 9.80E-02 4.75E-01 06/16/15 07:10 1.14E-05 1.14E+04 1263290 1263290 1.34 2000 8.631E+07 8.63E-05 3.77E-01 9.82E-02 4.76E-01

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 26 of 31 RW-LS-101s Sample Results Exelon ENV LLD Date/Time Activity (pCi/L)

Totalizer 1 Totalizer 2 Discharge Flow (gpm)

Water Discharge Volume (gal)

Activity discharged (pCi)

Activity discharged (Ci)

Cumulative Activity discharged (Ci) 01/01/15 15:40 1.63E-05 1.63E+04 27699 27699 1.00 1025 6.324E+07 6.32E-05 6.49E-02 01/02/15 08:55 1.80E-05 1.80E+04 28724 28724 0.95 1542 1.051E+08 1.05E-04 6.50E-02 01/03/15 14:06 1.79E-05 1.79E+04 30266 30266 0.80 1159 7.854E+07 7.85E-05 6.51E-02 01/04/15 14:25 1.74E-05 1.74E+04 31426 31426 0.80 975 6.419E+07 6.42E-05 6.52E-02 01/05/15 10:55 0.00E+00 32400 32400 0.80 1187 0.000E+00 0.00E+00 6.52E-02 01/06/15 07:15 1.72E-05 1.72E+04 33587 33587 0.98 1362 8.866E+07 8.87E-05 6.53E-02 01/07/15 08:25 1.84E-05 1.84E+04 34948 34948 0.88 1401 9.759E+07 9.76E-05 6.54E-02 01/08/15 11:00 0.00E+00 36349 36349 0.86 1060 0.000E+00 0.00E+00 6.54E-02 01/09/15 07:55 0.00E+00 37410 37410 0.83 1622 0.000E+00 0.00E+00 6.54E-02 01/10/15 15:15 1.70E-05 1.70E+04 39032 39032 0.90 1215 7.819E+07 7.82E-05 6.55E-02 01/11/15 14:30 1.53E-05 1.53E+04 40247 40247 0.85 1021 5.913E+07 5.91E-05 6.55E-02 01/12/15 10:10 1.76E-05 1.76E+04 41268 41268 0.83 1163 7.751E+07 7.75E-05 6.56E-02 01/13/15 08:00 1.76E-05 1.76E+04 42431 42431 0.86 1273 8.478E+07 8.48E-05 6.57E-02 01/14/15 08:50 1.53E-05 1.53E+04 43704 43704 0.92 321 1.858E+07 1.86E-05 6.57E-02 01/15/15 05:00 1.53E-05 1.53E+04 44025 44025 0.90 3340 1.935E+08 1.93E-04 6.59E-02 01/16/15 07:30 1.71E-05 1.71E+04 47365 47365 1.64 3118 2.018E+08 2.02E-04 6.61E-02 01/17/15 14:41 1.61E-05 1.61E+04 50483 50483 1.72 2273 1.385E+08 1.39E-04 6.62E-02 01/18/15 14:51 1.63E-05 1.63E+04 52756 52756 1.49 2146 1.324E+08 1.32E-04 6.64E-02 01/19/15 15:32 1.69E-05 1.69E+04 54902 54902 1.53 1567 1.003E+08 1.00E-04 6.65E-02 01/20/15 08:44 1.69E-05 1.69E+04 56469 56469 1.46 1999 1.279E+08 1.28E-04 6.66E-02 01/21/15 07:45 1.87E-05 1.87E+04 58468 58468 1.42 2014 1.425E+08 1.43E-04 6.67E-02 01/22/15 07:10 1.77E-05 1.77E+04 60482 60482 1.44 2180 1.461E+08 1.46E-04 6.69E-02 01/23/15 08:25 1.70E-05 1.70E+04 62662 62662 96.00 2952 1.900E+08 1.90E-04 6.71E-02 01/24/15 14:32 1.65E-05 1.65E+04 65614 65614 1.78 2379 1.486E+08 1.49E-04 6.72E-02 01/25/15 14:35 1.85E-05 1.85E+04 67993 67993 1.57 1605 1.124E+08 1.12E-04 6.73E-02 01/26/15 08:22 1.83E-05 1.83E+04 69598 69598 1.58 2156 1.494E+08 1.49E-04 6.75E-02 01/27/15 07:21 1.73E-05 1.73E+04 71755 71755 1.45 2122 1.389E+08 1.39E-04 6.76E-02 01/28/15 07:58 1.63E-05 1.63E+04 73876 73876 1.49 2386 1.472E+08 1.47E-04 6.78E-02 01/29/15 08:12 1.63E-05 1.63E+04 76263 76263 1.63 1992 1.229E+08 1.23E-04 6.79E-02 01/30/15 07:00 1.63E-05 1.63E+04 78255 78255 1.40 2470 1.524E+08 1.52E-04 6.80E-02 01/31/15 11:17 1.63E-05 1.63E+04 80725 80725 1.55 2062 1.273E+08 1.27E-04 6.82E-02

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 27 of 31 RW-LS-101s Sample Results Exelon ENV LLD Date/Time Activity (pCi/L)

Totalizer 1 Totalizer 2 Discharge Flow (gpm)

Water Discharge Volume (gal)

Activity discharged (pCi)

Activity discharged (Ci)

Cumulative Activity discharged (Ci) 02/01/15 08:30 1.63E-05 1.63E+04 82787 82787 1.70 5226 3.225E+08 3.22E-04 6.85E-02 02/03/15 10:20 1.81E-05 1.81E+04 88013 88013 1.87 2836 1.943E+08 1.94E-04 6.87E-02 02/04/15 10:43 1.81E-05 1.81E+04 90849 90849 1.85 2711 1.857E+08 1.86E-04 6.89E-02 02/05/15 11:28 1.81E-05 1.81E+04 93560 93560 1.80 6031 4.132E+08 4.13E-04 6.93E-02 02/07/15 13:42 1.81E-05 1.81E+04 99591 99591 2.12 2684 1.839E+08 1.84E-04 6.95E-02 02/08/15 10:25 1.81E-05 1.81E+04 102274 102274 2.16 2687 1.841E+08 1.84E-04 6.96E-02 02/09/15 07:00 1.81E-05 1.81E+04 104961 104961 2.16 3185 2.182E+08 2.18E-04 6.99E-02 02/10/15 07:00 1.91E-05 1.91E+04 108146 108146 2.30 3585 2.592E+08 2.59E-04 7.01E-02 02/11/15 07:48 1.91E-05 1.91E+04 111731 111731 2.43 4072 2.944E+08 2.94E-04 7.04E-02 02/12/15 13:21 1.91E-05 1.91E+04 115803 115803 2.12 2859 2.067E+08 2.07E-04 7.06E-02 02/13/15 10:57 1.91E-05 1.91E+04 118662 118662 2.32 2987 2.160E+08 2.16E-04 7.08E-02 02/14/15 07:51 1.91E-05 1.91E+04 121649 121649 2.35 3009 2.176E+08 2.18E-04 7.11E-02 02/15/15 08:00 1.91E-05 1.91E+04 124658 124658 2.01 2962 2.142E+08 2.14E-04 7.13E-02 02/16/15 07:30 1.91E-05 1.91E+04 127620 127620 2.21 3202 2.315E+08 2.32E-04 7.15E-02 02/17/15 07:14 1.80E-05 1.80E+04 130822 130822 2.24 3335 2.272E+08 2.27E-04 7.17E-02 02/18/15 08:10 1.80E-05 1.80E+04 134157 134157 2.15 2781 1.895E+08 1.89E-04 7.19E-02 02/19/15 07:10 1.80E-05 1.80E+04 136938 136938 1.92 3324 2.265E+08 2.26E-04 7.21E-02 02/20/15 11:05 1.80E-05 1.80E+04 140262 140262 2.09 2978 2.029E+08 2.03E-04 7.24E-02 02/21/15 11:25 1.80E-05 1.80E+04 143240 143240 1.91 2403 1.637E+08 1.64E-04 7.25E-02 02/22/15 10:06 1.80E-05 1.80E+04 145643 145643 1.61 2158 1.470E+08 1.47E-04 7.27E-02 02/23/15 09:00 1.80E-05 1.80E+04 147801 147801 1.57 2440 1.663E+08 1.66E-04 7.28E-02 02/24/15 08:00 1.50E-05 1.50E+04 150241 150241 1.96 3095 1.757E+08 1.76E-04 7.30E-02 02/25/15 11:07 1.50E-05 1.50E+04 153336 153336 1.78 2044 1.161E+08 1.16E-04 7.31E-02 02/26/15 07:00 1.50E-05 1.50E+04 155380 155380 1.22 2540 1.442E+08 1.44E-04 7.33E-02 02/27/15 11:12 1.50E-05 1.50E+04 157920 157920 1.64 1982 1.125E+08 1.13E-04 7.34E-02 02/28/15 10:40 1.50E-05 1.50E+04 159902 159902 1.57 2025 1.150E+08 1.15E-04 7.35E-02 03/01/15 08:43 1.50E-05 1.50E+04 161927 161927 1.50 2495 1.417E+08 1.42E-04 7.36E-02 03/02/15 12:40 1.50E-05 1.50E+04 164422 164422 1.77 2241 1.272E+08 1.27E-04 7.38E-02 03/03/15 08:40 1.42E-05 1.42E+04 166663 166663 2241 1.204E+08 1.20E-04 7.39E-02 03/04/15 10:10 1.42E-05 1.42E+04 168903 168903 1.65 2672 1.436E+08 1.44E-04 7.40E-02 03/05/15 19:31 1.42E-05 1.42E+04 171575 171575 1.39 1213 6.520E+07 6.52E-05 7.41E-02

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 28 of 31 RW-LS-101s Sample Results Exelon ENV LLD Date/Time Activity (pCi/L)

Totalizer 1 Totalizer 2 Discharge Flow (gpm)

Water Discharge Volume (gal)

Activity discharged (pCi)

Activity discharged (Ci)

Cumulative Activity discharged (Ci) 03/06/15 10:45 1.42E-05 1.42E+04 172788 172788 1.35 2584 1.389E+08 1.39E-04 7.42E-02 03/07/15 15:13 1.42E-05 1.42E+04 175372 175372 1.39 1867 1.004E+08 1.00E-04 7.43E-02 03/08/15 14:45 1.42E-05 1.42E+04 177239 177239 1.63 1251 6.724E+07 6.72E-05 7.44E-02 03/09/15 07:30 1.42E-05 1.42E+04 178490 178490 1.30 1735 9.326E+07 9.33E-05 7.45E-02 03/10/15 07:00 1.48E-05 1.48E+04 180225 180225 1.03 1661 9.306E+07 9.31E-05 7.46E-02 03/11/15 07:35 1.48E-05 1.48E+04 181886 181886 1.20 1429 8.006E+07 8.01E-05 7.47E-02 03/12/15 07:00 1.48E-05 1.48E+04 183315 183315 1.20 1761 9.866E+07 9.87E-05 7.48E-02 03/13/15 10:40 1.48E-05 1.48E+04 185076 185076 0.94 1877 1.052E+08 1.05E-04 7.49E-02 03/14/15 13:15 1.48E-05 1.48E+04 186953 186953 1.17 1424 7.978E+07 7.98E-05 7.49E-02 03/15/15 10:25 1.48E-05 1.48E+04 188377 188377 1.35 1538 8.617E+07 8.62E-05 7.50E-02 03/16/15 08:05 1.48E-05 1.48E+04 189915 189915 1.20 1675 9.384E+07 9.38E-05 7.51E-02 03/17/15 07:10 1.61E-05 1.61E+04 191590 191590 0.93 1845 1.124E+08 1.12E-04 7.52E-02 03/18/15 12:35 1.61E-05 1.61E+04 193435 193435 0.96 1669 1.017E+08 1.02E-04 7.53E-02 03/19/15 13:25 1.61E-05 1.61E+04 195104 195104 1.18 1332 8.118E+07 8.12E-05 7.54E-02 03/20/15 08:10 1.61E-05 1.61E+04 196436 196436 1.17 4191 2.554E+08 2.55E-04 7.57E-02 03/22/15 15:55 1.61E-05 1.61E+04 200627 200627 1.35 1318 8.033E+07 8.03E-05 7.58E-02 03/23/15 09:00 1.61E-05 1.61E+04 201945 201945 1.27 1850 1.127E+08 1.13E-04 7.59E-02 03/24/15 09:00 1.70E-05 1.70E+04 203795 203795 1.34 1994 1.283E+08 1.28E-04 7.60E-02 03/25/15 08:15 1.70E-05 1.70E+04 205789 205789 1.33 2080 1.339E+08 1.34E-04 7.61E-02 03/26/15 09:00 1.70E-05 1.70E+04 207869 207869 1.41 1930 1.242E+08 1.24E-04 7.63E-02 03/27/15 07:30 1.70E-05 1.70E+04 209799 209799 1.35 2611 1.680E+08 1.68E-04 7.64E-02 03/28/15 15:15 1.70E-05 1.70E+04 212410 212410 1.42 2112 1.359E+08 1.36E-04 7.66E-02 03/29/15 15:35 1.70E-05 1.70E+04 214522 214522 1.56 1550 9.975E+07 9.97E-05 7.67E-02 03/30/15 08:53 1.70E-05 1.70E+04 216072 216072 1.43 2051 1.320E+08 1.32E-04 7.68E-02 03/31/15 07:20 1.82E-05 1.82E+04 218123 218123 1.50 2278 1.569E+08 1.57E-04 7.69E-02 04/01/15 09:15 1.82E-05 1.82E+04 220401 220401 1.47 2148 1.480E+08 1.48E-04 7.71E-02 04/02/15 08:35 1.82E-05 1.82E+04 222549 222549 1.61 2339 1.611E+08 1.61E-04 7.73E-02 04/03/15 09:05 1.82E-05 1.82E+04 224888 224888 1.56 2820 1.943E+08 1.94E-04 7.75E-02 04/04/15 15:00 1.82E-05 1.82E+04 227708 227708 1.63 2370 1.633E+08 1.63E-04 7.76E-02 04/05/15 14:50 1.82E-05 1.82E+04 230078 230078 1.69 1771 1.220E+08 1.22E-04 7.77E-02 04/06/15 08:19 1.82E-05 1.82E+04 231849 231849 1.69 2400 1.653E+08 1.65E-04 7.79E-02

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 29 of 31 RW-LS-101s Sample Results Exelon ENV LLD Date/Time Activity (pCi/L)

Totalizer 1 Totalizer 2 Discharge Flow (gpm)

Water Discharge Volume (gal)

Activity discharged (pCi)

Activity discharged (Ci)

Cumulative Activity discharged (Ci) 04/07/15 08:20 2.07E-05 2.07E+04 234249 234249 1.59 2245 1.759E+08 1.76E-04 7.81E-02 04/08/15 07:15 2.07E-05 2.07E+04 236494 236494 1.62 2812 2.203E+08 2.20E-04 7.83E-02 04/09/15 11:18 2.07E-05 2.07E+04 239306 239306 1.62 2165 1.696E+08 1.70E-04 7.85E-02 04/10/15 08:25 2.07E-05 2.07E+04 241471 241471 1.58 2623 2.055E+08 2.06E-04 7.87E-02 04/11/15 14:25 2.07E-05 2.07E+04 244094 244094 1.43 2296 1.799E+08 1.80E-04 7.89E-02 04/12/15 14:45 2.07E-05 2.07E+04 246390 246390 1.73 1963 1.538E+08 1.54E-04 7.90E-02 04/13/15 10:10 2.07E-05 2.07E+04 248353 248353 1.52 2067 1.620E+08 1.62E-04 7.92E-02 04/14/15 08:30 2.03E-05 2.03E+04 250420 250420 1.50 2275 1.748E+08 1.75E-04 7.93E-02 04/15/15 09:10 2.03E-05 2.03E+04 252695 252695 1.59 2149 1.651E+08 1.65E-04 7.95E-02 04/16/15 07:19 2.03E-05 2.03E+04 254844 254844 1.63 2412 1.853E+08 1.85E-04 7.97E-02 04/17/15 08:03 2.03E-05 2.03E+04 257256 257256 1.62 3363 2.584E+08 2.58E-04 8.00E-02 04/18/15 18:40 2.03E-05 2.03E+04 260619 260619 1.54 2070 1.591E+08 1.59E-04 8.01E-02 04/19/15 14:30 2.03E-05 2.03E+04 262689 262689 1.85 2024 1.555E+08 1.56E-04 8.03E-02 04/20/15 08:00 2.03E-05 2.03E+04 264713 264713 1.85 2647 2.034E+08 2.03E-04 8.05E-02 04/21/15 09:30 2.27E-05 2.27E+04 267360 267360 4.21 2397 2.060E+08 2.06E-04 8.07E-02 04/22/15 08:30 2.27E-05 2.27E+04 269757 269757 1.55 2416 2.076E+08 2.08E-04 8.09E-02 04/23/15 09:00 2.27E-05 2.27E+04 272173 272173 1.53 2307 1.982E+08 1.98E-04 8.11E-02 04/24/15 08:40 2.27E-05 2.27E+04 274480 274480 1.66 3079 2.646E+08 2.65E-04 8.13E-02 04/25/15 13:00 2.27E-05 2.27E+04 277559 277559 2.02 2890 2.483E+08 2.48E-04 8.16E-02 04/26/15 13:06 2.27E-05 2.27E+04 280449 280449 1.68 2370 2.037E+08 2.04E-04 8.18E-02 04/27/15 07:40 2.27E-05 2.27E+04 282819 282819 2.15 3282 2.820E+08 2.82E-04 8.21E-02 04/28/15 08:45 2.40E-05 2.40E+04 286101 286101 2.19 3158 2.869E+08 2.87E-04 8.24E-02 04/29/15 07:50 2.40E-05 2.40E+04 289259 289259 2.29 3726 3.385E+08 3.39E-04 8.27E-02 04/30/15 10:30 2.40E-05 2.40E+04 292985 292985 2.31 2529 2.298E+08 2.30E-04 8.29E-02 05/01/15 06:00 2.40E-05 2.40E+04 295514 295514 2.14 4176 3.794E+08 3.79E-04 8.33E-02 05/02/15 14:14 2.40E-05 2.40E+04 299690 299690 2.18 3178 2.887E+08 2.89E-04 8.36E-02 05/03/15 14:15 2.40E-05 2.40E+04 302868 302868 2.21 3025 2.748E+08 2.75E-04 8.39E-02 05/04/15 13:51 2.40E-05 2.40E+04 305893 305893 1.96 2322 2.110E+08 2.11E-04 8.41E-02 05/05/15 09:05 2.52E-05 2.52E+04 308215 308215 2.07 4099 3.910E+08 3.91E-04 8.45E-02 05/06/15 12:45 2.52E-05 2.52E+04 312314 312314 2.62 3888 3.709E+08 3.71E-04 8.49E-02 05/07/15 12:00 2.52E-05 2.52E+04 316202 316212 2.84 3512 3.350E+08 3.35E-04 8.52E-02

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 30 of 31 RW-LS-101s Sample Results Exelon ENV LLD Date/Time Activity (pCi/L)

Totalizer 1 Totalizer 2 Discharge Flow (gpm)

Water Discharge Volume (gal)

Activity discharged (pCi)

Activity discharged (Ci)

Cumulative Activity discharged (Ci) 05/08/15 08:00 2.52E-05 2.52E+04 319714 319714 2.90 5564 5.308E+08 5.31E-04 8.57E-02 05/09/15 15:17 2.52E-05 2.52E+04 325278 325278 3.00 4372 4.171E+08 4.17E-04 8.61E-02 05/10/15 15:10 2.52E-05 2.52E+04 329650 329650 3.08 4057 3.870E+08 3.87E-04 8.65E-02 05/11/15 12:45 2.52E-05 2.52E+04 333707 333707 3.18 3983 3.799E+08 3.80E-04 8.69E-02 05/12/15 10:15 2.64E-05 2.64E+04 337690 337690 2.95 4140 4.137E+08 4.14E-04 8.73E-02 05/13/15 10:10 2.64E-05 2.64E+04 341830 341830 2.79 3936 3.933E+08 3.93E-04 8.77E-02 05/14/15 08:05 2.64E-05 2.64E+04 345766 345766 3.00 5546 5.542E+08 5.54E-04 8.83E-02 05/15/15 12:45 2.64E-05 2.64E+04 351312 351312 3.14 5395 5.391E+08 5.39E-04 8.88E-02 05/16/15 17:36 2.64E-05 2.64E+04 356707 356707 3.24 3850 3.847E+08 3.85E-04 8.92E-02 05/17/15 14:25 2.64E-05 2.64E+04 360557 360557 3.24 3307 3.305E+08 3.30E-04 8.95E-02 05/18/15 09:00 2.64E-05 2.64E+04 363864 363864 3.06 3700 3.698E+08 3.70E-04 8.99E-02 05/19/15 07:50 2.47E-05 2.47E+04 367564 367564 2.57 4154 3.884E+08 3.88E-04 9.03E-02 05/20/15 09:50 2.47E-05 2.47E+04 371718 371718 2.66 4077 3.812E+08 3.81E-04 9.07E-02 05/21/15 10:25 2.47E-05 2.47E+04 375795 375795 2.97 3637 3.401E+08 3.40E-04 9.10E-02 05/22/15 08:20 2.47E-05 2.47E+04 379432 379432 2.52 4658 4.355E+08 4.36E-04 9.14E-02 05/23/15 14:45 2.47E-05 2.47E+04 384090 384090 2.53 4157 3.887E+08 3.89E-04 9.18E-02 05/24/15 16:23 2.47E-05 2.47E+04 388247 388247 2.96 3288 3.074E+08 3.07E-04 9.21E-02 05/25/15 11:30 2.47E-05 2.47E+04 391535 391535 2.73 3843 3.593E+08 3.59E-04 9.25E-02 05/26/15 11:08 2.56E-05 2.56E+04 395378 395378 2.68 4223 4.092E+08 4.09E-04 9.29E-02 05/27/15 11:30 2.56E-05 2.56E+04 399601 399601 3.00 1553 1.505E+08 1.50E-04 9.30E-02 05/28/15 10:50 2.56E-05 2.56E+04 401154 401154 2.00 2800 2.713E+08 2.71E-04 9.33E-02 05/29/15 11:36 2.56E-05 2.56E+04 401154 401154 2.00 2972 2.880E+08 2.88E-04 9.36E-02 05/30/15 17:40 2.56E-05 2.56E+04 401154 401154 2.00 3608 3.496E+08 3.50E-04 9.40E-02 05/31/15 14:12 2.56E-05 2.56E+04 401154 401154 2.00 2464 2.388E+08 2.39E-04 9.42E-02 06/01/15 10:10 2.56E-05 2.56E+04 401154 401154 2.47 1644 1.593E+08 1.59E-04 9.44E-02 06/02/15 08:20 2.49E-05 2.49E+04 402798 402798 2.00 2660 2.507E+08 2.51E-04 9.46E-02 06/03/15 10:10 2.49E-05 2.49E+04 402799 402799 2.00 3100 2.922E+08 2.92E-04 9.49E-02 06/04/15 10:25 2.49E-05 2.49E+04 405592 405592 2.04 2598 2.449E+08 2.45E-04 9.51E-02 06/05/15 07:30 2.49E-05 2.49E+04 408190 408190 2.03 3767 3.551E+08 3.55E-04 9.55E-02 06/06/15 14:40 2.49E-05 2.49E+04 411957 411957 2.07 3151 2.970E+08 2.97E-04 9.58E-02 06/07/15 15:35 2.49E-05 2.49E+04 415108 415108 2.12 2159 2.035E+08 2.04E-04 9.60E-02

2015 Unit 1 Cycled Condensate Storage Tank Tritium Remediation Monitoring 31 of 31 RW-LS-101s Sample Results Exelon ENV LLD Date/Time Activity (pCi/L)

Totalizer 1 Totalizer 2 Discharge Flow (gpm)

Water Discharge Volume (gal)

Activity discharged (pCi)

Activity discharged (Ci)

Cumulative Activity discharged (Ci) 06/08/15 09:00 2.49E-05 2.49E+04 417267 417267 2.01 2754 2.596E+08 2.60E-04 9.63E-02 06/09/15 07:25 2.26E-05 2.26E+04 420021 420021 2.12 3102 2.654E+08 2.65E-04 9.65E-02 06/10/15 07:55 2.26E-05 2.26E+04 423123 423123 2.10 3132 2.679E+08 2.68E-04 9.68E-02 06/11/15 08:50 2.26E-05 2.26E+04 426255 426255 2.09 3199 2.737E+08 2.74E-04 9.71E-02 06/12/15 10:30 2.26E-05 2.26E+04 429454 429454 2.05 3493 2.988E+08 2.99E-04 9.74E-02 06/13/15 15:00 2.26E-05 2.26E+04 432947 432947 2.00 2789 2.386E+08 2.39E-04 9.76E-02 06/14/15 14:10 2.26E-05 2.26E+04 435736 435736 2.02 2491 2.131E+08 2.13E-04 9.78E-02 06/15/15 10:30 2.26E-05 2.26E+04 438227 438227 2.01 2495 2.134E+08 2.13E-04 9.80E-02 06/16/15 07:10 1.74E-05 1.74E+04 440722 440722 2.00 2996 1.973E+08 1.97E-04 9.82E-02