ML20199D488

Corrected Page for Insp Rept 50-213/97-07 on 970715-30

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: ML20199D446 ML20199D462 ML20199D488
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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PDR

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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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