ML20199D488
| ML20199D488 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 11/07/1997 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML20199D451 | List: |
| References | |
| 50-213-97-07, 50-213-97-7, NUDOCS 9711200346 | |
| Download: ML20199D488 (2) | |
See also: IR 05000213/1997007
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U.S. NUCLE /.R REGULATORY COMMISSION
REGION I
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Docket No.:
50 213
License No.:
DPR,-61
' Report No.: .
50 213/97-07-
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Licensee:
Connecticut Yankee Atomic Power Company
P. O. Box 270
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Hartford, CT 061410270
Facility:
Haddam Neck Station
Location:
Haddam, Connecticut
Dates:
July 15 - 30,1997
Inspectors:
W. Raymond, Senior Resident inspector
J. Kottan, Laboratory Specialist
R. Nimitz, Senior Health Physicist
Approved by:
Richard J. Conte, Chief, Projects Branch 8
Division of Reactor Projects
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971f,200346 971107
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ADOCK 05000213
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REPORT DETAILS
M. Plant Sunoort
R1
Radiological Protection and Chemistry (RP&C) Controls
R1.1 Propertv Walkdown and Radiation Survev. Private Residence, Haddam Neck
a.
Insoection Scope (71750)
The purpose of this specialinspection on July 16,1997, was to accompany
Connecticut Yankee (CYAPCo) staff and to observe a radiation and soil
contamination survey at a private residence on Injun Hollow Road in Haddum Neck,
Ct.- A representative from the State of Connecticut Department of Environmental
Protection was also in attendance to observe the licensee's survey and to conduct
independent measurements. The NRC and the State of Connecticut obtained split
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soil samples for independent analysis.
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b.
Observations and Findinag
Backaround
A Haddam Neck property owner received from the plant general land fill during a
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plant construction project in the 1980s and more recently, top soil in the Fall of
1996. The fill was excavated from the site when CYAPCo renovated a parking lot
on the north side of the plant site. The parking lot was outside the protected and
radiological controlled area. Accordag to CYAPCo personnel, when the parking lot
was expanded, several islands were removed and a machine was used to break
down the asphalt and mix it with the excavated gravel and other parking lot
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construction materisis. Most of the excavated materials were taken by truck to a
plant landfill area on the south side of the site. A plant engineer estimated that
about 2 truck loads were delivered to the property owner 6t his request. Following
recent media reports of site contamination at the Haddam Site, the property owner
contacted the licensee to request assistance in a radiological assessment of the fill
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at his property.
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Survey Plan
The licensee planned a survey of the property using three techniques. Very
sensitive gamma survey instruments were used to provide a radiation scan over a
wide area of the property. The gamma surveys were taken over areas where the
property was known to contain fill from the plant, as well as in areas known to
contain only original material from the property. The gamma surveys were
supplemented with scans by a gamma spectroscopy instrurrent that could
differentiate between naturally occurring radioisotopes and those resulting from
power plant operations, notably Cs-134, Cs-137 and Co-60. The gamma
spectroscopy measurements were taken at an area known to not contain plant
related material; this measurement was used to obtain a " background
measurement". Additional gamma spectroscopy measurements were obtained on
areas of interest as indicated by the gamma survey measurements. The licensee
took soil samples using a similar approach: a background soil sample was taken
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