CP-201700228, Submittal of the Annual Non-Radiological Environmental Operating Report for 2017

Submittal of the Annual Non-Radiological Environmental Operating Report for 2017

ML18129A217
Person / Time
Site:	Comanche Peak
Issue date:	04/30/2018
From:	Thomas McCool Luminant Power, TXU Energy, Vistra Operations Company
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
CP-201700228
Download: ML18129A217 (11)

Text

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• energy I m Luminant Thomas P. McCool Site Vice President Luminant P.O. Box 1002 6322 North FM 56 Glen Rose, TX 76043 o 254.897.6042 CP-201700228 TXX-18025 U. S. Nuclear Regulatory Commi ssion Ref. CPNPP ODCM ATIN: Document Control Desk Washington, DC 20555-0001 4/30/2018

SUBJECT:

COMANCHE PEAK NUCLEAR POWER PLANT DOCKET NOS. 50-445 AND 50-446 SUBMITIAL OF THE ANNUAL NON -RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT FOR 2017

Dear Sir or Madam :

Vistra Operating Company LLC (VistraOpCo) hereby submits for Comanche Peak Nuclear Power Plant (CPNPP), the enclosed copy of the Annual Non-Radiological Environmental Operating Report for the CPNPP Radiological Environmental Monitoring Program. This report is submitted pursuant to Appendi x B of the CPNPP Unit 1 and 2 Operating License Nos. NPF-87 and NPF-89 . The report covers the period from January 1, 2017 through December 31, 2017 and summarizes the results of measurements and analysis of data obtained from samples co ll ected during this interval.

Thi s communication contain s no new licensing basis commitments regarding CPNPP Units 1 and 2.

If there are any questions regarding this report, contact Steve Di xon at (254) 897-5482 or Tim Curtis at (254) 897-5660.

Sincerely,

~ ool 6555 SIERRA DR IVE IRVING, TEXAS 75039 0214-812-4600 VISTRAENERGY.COM

TXX-18025 Page 2 of 2 Enclosure(s) 1. Comanche Peak Annual Non-Radiological Environmental Operating Report for 2017 c- K. M. Kennedy, Region IV M. O'Banion, NRR Resident Inspectors, Comanche Peak

LUMINANT POWER COMANCHE PEAK NUCLEAR POWER PLANT UNITS 1 & 2 2017 ANNUAL ENVIRONMENTAL OPERATING REPORT (NON-RADIOLOGICAL)

FACILITY OPERATING LICENSE NOs. NPF-87 & 89

I. INTRODUCTION This report describes implementation of the Environmental Protection Plan (EPP) for the calendar year 2017 as required by Appendix B to Facility Operating License Nos. NPF-87 & 89 for Comanche Peak Nuclear Power Plant (CPNPP) for Units 1 & 2.

During 2017, the CPNPP Non-Radiological Environmental Monitoring Program was effective in implementing and monitoring all CPNPP environmental regulatory commitments . Program effectiveness in 2017 was substantiated by both Luminant Corporate environmental audits/

compliance evaluations and Texas Commission on Environmental Quality (TCEQ) inspections concerning the CPNPP Environmental program.

IL SCOPE Section 5.4.1 of the EPP requires that CPNPP submit to the NRC an Annual Environmental Operating Report that shall address the following environmental protection activities:

A. Summaries and analyses of the results of the environmental protection activities required by Section 4 .2 of the EPP, including a comparison with related preoperational studies, operational controls (as appropriate), and previous non-radiological environmental monitoring reports, and an assessment of the observed impacts of plant operation on the environment. If harmful effects or evidence of trends toward irreversible damage to the environment are observed , a detailed analysis of the data and a proposed course of mitigating actions are required. Section 4.2 of the EPP pertains to results from:

1. Groundwater levels and station water use monitoring.

2. Water treatment facility outages impact assessment and reporting .

B. The report shall also include:

1. A list of EPP non-compliances and the associated corrective actions.

2. A list of all changes in station design and operation, tests , and experiments made in accordance with Subsection 3.1 of the EPP which involved a potentially significant unreviewed environmental question.

3. A list of non-routine reports submitted in accordance with Subsection 5.4 .2 of the EPP.

4. A summary list of Texas Pollutant Discharge Elimination System (TPDES) permit related reports relative to matters identified in Subsection 2.1 of the EPP which were submitted to the Texas Commission on Environmental Quality (TCEQ) during the report period. Subsection 2.1 of the EPP pertains to aquatic matters that are addressed by the effluent limitations, and the monitoring requirements contained in the TCEQ TPDES station wastewater discharge permit.

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Ill. RESULTS OF ACTIVITIES A. As required by Subsection 4.2 of the EPP, the following are summaries and analyses of the environmental protection activities during 2017. Based on the results of these activities, there were no observed adverse environmental impacts resulting from plant operation during 2017.

1. Groundwater Pumpage As indicated in Table 2, groundwater pumpage during 2017 averaged 0.100 gals /min. (gpm) or 52500 total gallons withdrawn for the year. CPNPP continues to be supplied by Somervell County Water District (SCWD) which started in January 2012. Groundwater withdrawal dropped to <1 gpm after Somervell County Water District (SCWD) became our supplier.

Groundwater withdrawn during 2017 was used primarily for potable and sanitary purposes. No groundwater was used to supplement the station's Surface Water Treatment System.

The average annual pumpage rate of 0.100 gpm for 2017 represents <1 % of the predicted operational pumpage (127 gpm) identified in Section 3.3 of the Station 's Environmental Report - Operational License Stage. This rate also represents approximately 0.1 % of the actual average withdrawal rate (158 gpm) reported in the Station's Final Environmental Statement - Operating License Stage (Section 5.3.1.2) for the period 1975 to May 1979.

2. Groundwater Levels As indicated in Table 1, the groundwater level in the on-site observation well OB-3 (intersection of Highway 56 and the Plant Access Road) fluctuated during 2017 from a low level in September of 616.87 ft. Mean Sea Level (MSL) to a high level in March of 619.00 ft. MSL. Overall, the water level in OB-3 during the reporting period (January through December) decreased 0.64 ft. = 0.20 m The 2017 annual average groundwater levels in wells OB-3 and OB-4 were 617.69 ft. MSL and 553.45 ft. MSL respectively.

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3. Surface Water Treatment System Operation The station's Water Treatment System processed 197,327,000 total gallons of surface water during 2017 for plant process use. No outages in 2017 that required reporting in accordance with Section 4.2.2 of the EPP.

The following is a summary list of monthly surface water usage:

I Month I Gallons Clarified I January 17,090,000 February 15,282,000 March 15,340,000 April 15,886,000 May 20,541,000 June 16,037,000 July 15,998,000 Auqust 16,701,000 September 16,593,000 October 15,659,000 November 14,993,000 December 17,207,000 Total annual production 197,327,000 B. EPP Noncompliance and Corrective Actions - Subsection 5.4.1(1)

There were no non-compliances with the requirements of the EPP during the reporting period.

C. Changes In Station Design or Operation, Tests, and Experiments Made In Accordance With Subsection 3.1 Which Involved A Potentially Significant Unreviewed Environmental Question.

There were no changes in station design, operation, tests or experiments conducted during the reporting period that are reportable under this subsection.

D. Non-routine Reports Submitted In Accordance With Subsection 5.4.2 None 4

E. Texas Pollutant Discharge Elimination System (TPDES) Permit-Related Reports Relative to Matters Identified In Subsections 2.1 and 5.4.1

1. Routine monthly electronic Discharge Monitoring Reports (netDMR) for all wastewater outfalls were submitted to the Texas Commission on Environmental Quality (TCEQ) for each month during 2017.

2. Bio-monitoring was on a Quarterly frequency in 2017. All required test passed satisfactorily for the four test performed in 2017.

3. There were no excursions in 2017 with reference to TPDES wastewater discharge permit.

4. There were eleven (11) incidental spills in 2017 with none being reportable .

• Petroleum - 8

• Process Water - 2

• Chemical - 1 and

• Sewage-0 5

TABLE 1 2017

SUMMARY

OF GROUNDWATER LEVELS IN OBSERVATION WELLS ANNUAL GROUNDWATER LEVEL CHANGE FOR 2017:

Well OB-3: 276.12 ft. - 276.76 ft.= 0.64 ft.= 0.20 m (decrease)

Well OB-4: 291.81 ft. - 294.31 ft.= 2.50 ft. = 0.76 m (decrease)

NOTES:

(1) Depth to water table (ft.)

(2) Water table elevation (ft.) Mean Sea Level (MSL)

WELL 08-3 WELL 08-4 MONTH (G -3) (G-4)

DEPTH (1) MSL (2) DEPTH (1) MSL (2)

January 276.12 618.01 291.8 1 556.07 February 275 .31 618.82 291.1 1 556.77 March 275.13 619.00 291.83 556.05 April 275.81 618.32 293.72 554. 16 May 276.12 6 18.0 1 294.31 553 .57 June 276.46 617.67 295.28 552.60 July 276.93 617.20 295.04 552 .84 August 277.12 617.01 296 .06 551.82 September 277.26 616.87 296.64 551.24 October 277.08 617.05 296.84 551.04 November 277.14 616.99 296. 16 551.72 December 276.76 617.37 294 .31 553.57 6

2017 Annual Production Well Report for Recreation/Training System Month Well Reading Monthly Well Number Total Days/Year Gallons Per Monthly Yearly Last Day of Well Cumulative Days/Month Day GPM Cumulative Month (gallons) Total Total (average) GPM (gallons) (gallons)

December 294800 January 298000 3200 3200 31 31 103.23 0.072 0.0717 February 300800 2800 6000 28 59 100.00 0.069 0.0706 March 306900 6100 12100 31 90 196.77 0.137 0.0934 April 312300 5400 17500 30 120 180.00 0.125 0.1013 May 314600 2300 19800 31 151 74.19 0.052 0.0911 June 319300 4700 24500 30 181 156.67 0.109 0.0940 July 323200 3900 28400 31 212 125.81 0.087 0.0930 August 327000 3800 32200 30 242 126.67 0.088 0.0924 September 331400 4400 36600 31 273 141.94 0.099 0.0931 October 336900 5500 42100 31 304 177.42 0.123 0.0962 November 341300 4400 46500 30 334 146.67 0.102 0.0967 December 347300 6000 52500 31 365 193.55 0.134 0.0999 Totals 52500 365 0.0999 NOTE: All other site wells plugged 7

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