View source for PNO-I-05-028, Connecticut Yankee Atomic Power Company, Haddam Neck Report of Spent Fuel Pool Leak

{{Adams
| number = ML053070584
| issue date = 11/03/2005
| title = PNO-I-05-028: Connecticut Yankee Atomic Power Company, Haddam Neck Report of Spent Fuel Pool Leak
| author name = Miller M
| author affiliation = NRC/RGN-I
| addressee name = 
| addressee affiliation = 
| docket = 05000213
| license number = DPR-061
| contact person = 
| case reference number = 05000213051031
| document report number = PNO-I-05-028
| document type = NRC Preliminary Notification of Event/Occurrence
| page count = 2
}}
{{#Wiki_filter:DCS No.:        05000213051031 Date:           November 3, 2005 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE PNO-I-05-028 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by the Region I staff on this date.
Facility                                                Licensee Emergency Classification Connecticut Yankee Atomic Power Company                     Notification of Unusual Event Haddam Neck Plant                                           Alert 362 Injun Hollow Road                                       Site Area Emergency East Hampton, CT 06424-3099                                 General Emergency X Not Applicable Docket No.: 50-213 License No.: DPR-61

==SUBJECT:==
HADDAM NECK REPORT OF SPENT FUEL POOL LEAK On Monday, October 31, the licensee reported that they had found evidence of a former below-ground spent fuel pool leak on the east side wall of the spent fuel building, while conducting routine decommissioning excavations at the Haddam Neck site. The evidence of the leak consisted of hairline cracks in the spent fuel building wall and the accumulation of a white residue around the cracks. The licensee believes that the leak is not ongoing based on the absence of dampness around the cracks.
As part of the licensees previous characterization activities, soil core bores had been made around the entire spent fuel building. Elevated soil contamination had been identified in one small area on the east side of the spent fuel building. Four core samples of the east side of the spent fuel building wall were taken by the licensee which identified very low concentrations of Cs-137, Co-60, Sr-90, and tritium. The licensee has a system of down gradient wells on site to monitor groundwater, including shallow and bedrock wells in the vicinity of the spent fuel building. Recent groundwater monitoring surveillance results indicated low levels of tritium (4000 pCi/l) and Sr-90 (1.4 pCi/l) that were less than the EPA drinking water standard of 20,000 pCi/l and 8 pCi/l, respectively.
While water remains in the pool, fuel removal was completed in March 2005. Previous NRC inspections of the licensees spent fuel pool safety program identified no significant leakage from the spent fuel pool leak detection system. NRC RI plans to review the licensees sampling results and conduct independent measurements as part of its routine decommissioning inspection program scheduled to begin on November 7, 2005.
The licensee made the Offsite Notification per 10 CFR Part 50.72(b)(2)(xi). The licensee initially notified the State of Connecticut of this event as required by state regulations.
On November 3, NRC RI made additional notifications to the State Department of Environmental Protection, the First Selectman from Haddam and the Chair of the Citizens Decommissioning Advisory Committee. NRC Office of Congressional Affairs also informed staff of the U.S. Connecticut Congressional Delegation.
The Region I Office of Public Affairs is prepared to respond to media inquires.
This information presented herein has been discussed with the licensee and is current as of 3:00 p.m.,
November 3, 2005.

==Contact:==
Marie Miller (610) 337-5205 mtm1@nrc.gov DISTRIBUTIONS:
BY E-MAIL:
OWFN                             TWFN       LST Chairman Diaz                    IRO        PDR Comm. McGaffigan Jr.             NMSS Comm. Merrifield                 OIG Comm. Lyons                      RES Comm. Jaczko OIP OCA OGC EDO OE NRR SECY Regional Offices BY FAX:
DOT:Trans INPO NSAC RI Resident Office Licensee:      Joseph Bourassa, CYAPCo (Reactor Licensees)
DOCUMENT NAME: S:\PN\PN105028.wpd OFFICE RI/DNMS               RI/DNMS    RI/SAO         RI/PAO NAME      M Miller mtm1      G Pangburn S Minnick sam9 N Sheehan nas gcp DATE       11/03/05          11/03/05   11/03/05       11/03/05 Region I Form 83 (Rev. July 2, 2003)}}

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