ML061000434

E-mail from T. R. Jones of Entergy to J. Noggle of USNRC, Regarding 30-day Report to NRC (from MW-111 H3)

ML061000434
Person / Time
Site:	Indian Point
Issue date:	11/04/2005
From:	Jones T Entergy Nuclear Operations
To:	Noggle J NRC Region 1
References
FOIA/PA-2006-0081
Download: ML061000434 (3)

Text

I-aeJames N. ge3-a Reor to NR fo WilH)Pg Noggle--

-- 30-day Report to NRC _(from MW-111 H3) --- ~Page 1 I From: "Jones, T. R." <tjones2©entergy.com>

To: "'James Noggle"' <JDN~nrc.gov>

Date: 11/4/05 11:25AM

Subject:

30-day Report to NRC (from MW-i 11 H3)

From: Tyner, Donna Sent: Friday, November 04, 2005 11:20 AM To: Jones, T. R.

Subject:

<<NL-05-1 29.pdf>>

CC: "Sandike, Steven" <SSandik@entergy.com>

I . I .

I I .

Enterpy Nuclear Northeast Indian Point Energy Cente.r 295 Broadway, Suite 1 Lantegv P.O. Box 249 Buchanan, NY 10511-02X9 Paul W. Rubin General Manager, Plant Operalions Tel 914 734 5334 November 3, 2005 Re: Indian Point Unit Nos. 1 and 2 Docket Nos.50-003 and 50-247 NL-05-1 29 Regional Administrator, Region 1 U.S. Nuclear Regulatory Commission 475 Allendale Road King Of Prussia, PA 19406-1415

Subject:

Monitoring Well MW-1Il Tritium 30 Day Special Report

Reference:

1) Offsite Dose Calculation Manual, Revision 9, Section D 3.5;

'Radiological Environmental Monitoring"

Dear Mr. Collins:

This report is being provided in accordance with Section D 3.5 of the Indian Point 2 Offsite Dose Calculation Manual (ODCM) (reference 1). On October 5, 2005, the measured tritium activity from groundwater monitoring well MW- 11 was found to be 2.11 E+5 pCi/L (2.11 E-4 uCi/ml),

which is above the ODCM reporting limit of 3.0 E+4 pCi/L (3.OE-5 uCi/ml). MW-1 was initially installed in the year 2000 to evaluate the possibility of contaminants such as oil and PCB's in preparation for the sale of Indian Point Unit 2 to Entergy. MW-I1 1 is located in the Protected Area, in the Unit 2 transformer yard, an area that is relatively close to both the Unit 1 and Unit 2 Spent Fuel Pools. Although this sample was not part of the station's Radiological Environmental Monitoring Program (REMP), this report is being provided since the level of tritium is above the REMP reporting level.

The groundwater from this well was analyzed for tritium content when it was installed in the year 2000 and no tritium was detected. Since that time no other samples have been taken. As part of the ongoing investigation into the Indian Point 2 fuel pool south wall leak, samples were taken from three on-site wells and analyzed for radiological content. Only monitoring well MW-I 11 indicated the presence of tritium.

During the continuing efforts to investigate the Unit 2 spent fuel pool south wall leak, samples from five additional existing shallow wells located in the vicinity of the Indian Point 3 Turbine Building were taken in mid-October. When analyzed, the only radionuclide identified was tritium

I qI .

NL-05-129 Docket Nos.50-003 and 50-:247 Page 2 of 2 (H-3) in the following concentrations:

T-1 (inside Turbine Building, NE corner) 1.6 E-6 uCi/mi (1600 pCi/L);

T-2 (inside Turbine Building, SW corner) 7.7 E-7 uCi/mI (770 pCi/L);

U-3-1 ,outside Turbine Building, NW corner) 4 E-7 uCi/m (400 pCi/L);

U-3-2,'outside Turbine Building, NW corner) 9.6 E-7 uCi/ml (960 pCi/L);

U-3-3 :outside Turbine Building, NW corner) 4.4 E-7 uCi/ml (440 pCi/L).

For perspective, the Federal Environmental Protection Agency (EPA) regulation, 40 CFR 141 limits titium concentration in drinking water to 20,000 pCi/L (or 2 E-5 uCi/ml). The highest of1 these live samples (T-1) contained a tritium concentration that was less than 10% of the tritium concentration permitted by EPA standards for drinking water. It is noted that there are no drinking water sources in the vicinity of any of these wells.

Entergy is currently working with a hydrologist and other consultants to design and implement a groundwater monitoring study to determine the source(s) of the tritium. This information will be used to determine any necessary corrective actions. The NRC is inspecting this effort. The cause of exceeding the limits and corrective action will be provided in the annual REMP report when available.

There are no new commitments made by Entergy contained in this letter. If you have any questions, please contact Patric W. Conroy, Manager, Licensing at (914)734-6668.

Very truly yours, Paul W. Rubin General Manager, Plant Operations Indian Point Energy Center cc: Mr. John P. Boska, Senior Project Manager, Section 1 Project Directorate I Division of Licensing Project Management U.S. Nuclear Regulatory Commission Document Control Desk U.S. Nuclear Regulatory Commission Resident Inspector's Office Indian Point Energy Center U.S. Nuclear Regulatory Commission Mr. Paul Eddy New York State Dept. of Public Service