ML20245A251

Amended Page 93 to Annual Radiological Environ Monitoring Program Annual Summary Rept for 1988

ML20245A251
Person / Time
Site:	Fort Saint Vrain
Issue date:	12/31/1988
From:	PUBLIC SERVICE CO. OF COLORADO
To:
Shared Package
ML20245A242	List: ML20245A239 ML20245A251
References
NUDOCS 8906210170
Download: ML20245A251 (1)

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. , . 93 II.H. Summary and Conclusions Table II.H.1 summarizes the radiation and environmental radioactivity measurements conducted during 1988 in the environs of the Fort St. Vrain Nuclear Generating Station, owned and operated by Public Service Company of Colorado. The values for each sample type may be compared to pre-operational and operational periods for this reactor, as well as to the values from other U.S. environmental monitoring programs (e.g., EPA 520). It must be emphasized, however, that the mean values in Table II.H.1 are only the means of the values greater than MDC, the statistically minimum detectable concentration. The range also is given only for detectable measurements. The mean and range values, therefore, are not the true means or ranges if any of the values in the sample popluation were less than MDC. The format of Table II.H.1 is a requirement of the NRC.

Inspection of Table II.H.1 reveals that there were no individual l measurements that exceeded the Reporting Level (RL) (see Table III. A.3).

The Chernobyl fallout was still observable in several sample types.

For the category of gross beta concentrations in drinking water, the mean for the Gilcrest well was again significantly greater than for the reference supply located in Fort Collins. This difference cannot be due to reactor effluent activity for the following reasons:

a. None of the individual fission product or activation product radionuclides measured were significantly higher in the Gilcrest drinking water,

b. Tritium concentrations measured at Gilcrest were only slightly statistically greater than those in Fort Collins. Assuming 8906210170 890608 PDR ADOCKOSOOg7 R

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