CPSES-200601335, Groundwater Protection - Data Collection Questionnaire

Groundwater Protection - Data Collection Questionnaire

ML062080273
Person / Time
Site:	Comanche Peak
Issue date:	07/11/2006
From:	Blevins M, Madden F TXU Generation Co, LP, TXU Power
To:	Richards S NRC/NRR/ADRO/DIRS
Sakai, S, DIRS/NRR, 415-1884
References
CPSES-200601335, FOIA/PA-2010-0209, TXX-06123
Download: ML062080273 (4)

Text

TXU Power TXU Power Mike Blevins Comanche Peak Steam Senior Vice President &

Electric Station Chief Nuclear Officer P. O. Box 1002 (EO1)

Glen Rose, TX 76043 Tel: 254 897 5209 CPSES-200601335 Fax: 254 897 6652 mike.blevins@txu.com Log #TXX-06123 July 11, 2006 Mr. Stuart A. Richards, Deputy Director Division of Inspection and Regional Support Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKET NOS. 50-445 AND 50-446 - GROUNDWATER PROTECTION - DATA COLLECTION QUESTIONNAIRE

Dear Mr. Richards:

The nuclear industry, in conjunction with the Nuclear Energy Institute, has developed a questionnaire to facilitate the collection of groundwater data at commercial nuclear reactor sites. The objective of the questionnaire is to compile baseline information about the current status of site programs for monitoring and protecting groundwater and to share that information with NRC. The completed questionnaire for CPSES is contained in the attachment to this letter.

Please contact Scott Bradley at (254) 897-5495 if you have questions about the attached information.

This submittal contains no new regulatory commitments.

Sincerely, TXU Generation Company LP By: TXU Generation Management Company LLC Its General Partner Mike Blevins

/Fred W. Madden Director, Regulatory Affairs A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

• Comanche Peak

• Diablo Canyon

• Palo Verde e South Texas Project* Wolf Creek

TXX-06123 Page 2 of 2 RJK Attachment c - USNRC Document Control Desk B. S. Mallett, Region IV M. C. Thadani, NRR Resident Inspectors, CPSES Ralph Andersen, Nuclear Energy Institute

Attachment to TXX-06 123 Pagel1 of 2 Plant:. Comanche Peak I1. Briefly describe the program and/or methods used for detection of leakage or spills from plant systems, structures, and components that have a potential for an inadvertent release of radioactivity from plant operations into groundwater.

a. Comanche Peak has an operable Spent Fuel Leakage Detection system which is used to monitor for leakage from the spent fuel pools.

b. Engineers perform periodic walkdowns of the systems for which they are responsible. These rounds include the requirement to identify and report leaks and spills. Leaks and spills are addressed through: immediate clean-up, notifying supervision for assistance, writing a work request or initiating a Corrective Action Report.

c. Operations personnel perform routine surveillance rounds each shift. These rounds include the requirement to identify and report leaks and spills. Leaks and spills are addressed through: immediate clean-up, notifying supervision for assistance, writing a work request or initiating a Corrective Action Report.

d. Radiation Protection performs routine radiological surveys in and around the plant. Abnormal readings or leaks and spills are addressed through:

immediate clean-up, notifying supervision for assistance, writing a work request or initiating a Corrective Action Report.

e. Other groups, such as Environmental and Security, perform routine observations on-site, outside the plant, and would also report any leaks or spills.

2. Briefly describe the program and/or methods for monitoring onsite groundwater for the presence of radioactivity released from plant operations.

a. The Radiological Environmental Monitoring Program (REMP) has been implemented since plant start-up. It consists of the following water samples:

Surface Water

" Squaw Creek Reservoir

i. Near spillway or service outlet tower at or beyond mixing zone ii. Squaw Creek Park Marina beyond significant influence of discharge o Lake Granbury

i. South end of dam by Pecan Plantation intake structure mixing zone ii. Brazos River at Tin Top Bridge - control sample

Attachment to TXX-06123 Page 2 of 2

" Groundwater (aquifer) o On-site well (NOSF) o Plant drinking water supply o Glen Rose city water supply o Squaw Creek Park and Marina Well water supply o Control - Granbury City Well water supply

" Surface Drinking Water

" Squaw Creek Reservoir - Circ water intake structure

" Lake Granbury - at City Park and Marina REMP samples are analyzed by an offsite laboratory to Offsite Dose Calculation Manual (ODCM) Lower Limits of Detection. For Tritium:

a 2,000 PicoCuries/Liter for drinking water pathway 0 3,000 PicoCuries/Liter for non-drinking water.

b. A program for sampling of onsite perched (shallow) groundwater wells began in 2006, which consists of 8 wells and an artesian basin. The samples are analyzed by on-site Chemistry for Tritium (REMP LLDs) and gamma emitting isotopes (nuclide identification only).

3. If applicable, briefly summarize any occurrences of inadvertent releases of radioactive liquids that had the potential to reach groundwater and have been documented in accordance with 10 CFR 50.75(g).

There have been no occurrences of inadvertent releases of radioactive material at Comanche Peak with the potential to reach groundwater.

4. If applicable, briefly summarize the circumstances associated with any onsite or offsite groundwater monitoring result indicating a concentration in groundwater of radioactivity released from plant operations that exceeds the maximum contaminant level (MCL) established by the USEPA for drinking water.

There have been no identified instances of radioactivity released from the Comanche Peak plant that resulted in groundwater concentrations exceeding the USEPA maximum contaminant levels for drinking water.

5. Briefly describe any remediation efforts undertaken or planned to reduce or eliminate levels of radioactivity resulting from plant operations in soil or groundwater onsite or offsite.

Not Applicable.