05000302/LER-1980-028-04, /04T-0:on 800119,semiannual Analysis of Green Leafy Vegetable Sample Obtained from Sample Station Revealed High Concentration of Sr-90.Cause Unknown.Followup Sampling to Be Conducted to Determine Effect on Public Health

/04T-0:on 800119,semiannual Analysis of Green Leafy Vegetable Sample Obtained from Sample Station Revealed High Concentration of Sr-90.Cause Unknown.Followup Sampling to Be Conducted to Determine Effect on Public Health

ML19338C451
Person / Time
Site:	Crystal River
Issue date:	08/08/1980
From:	FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19338C446	List: 05000302/LER-1980-028, Forwards LER 80-028/04T-0 05000302/LER-1980-028-04, /04T-0:on 800119,semiannual Analysis of Green Leafy Vegetable Sample Obtained from Sample Station Revealed High Concentration of Sr-90.Cause Unknown.Followup Sampling to Be Conducted to Determine Effect on Public Health
References
FOIA-80-520 LER-80-028-04T, LER-80-28-4T, NUDOCS 8008150427
Download: ML19338C451 (2)

LER-1980-028, /04T-0:on 800119,semiannual Analysis of Green Leafy Vegetable Sample Obtained from Sample Station Revealed High Concentration of Sr-90.Cause Unknown.Followup Sampling to Be Conducted to Determine Effect on Public Health

Event date:
Report date:
3021980028R04 - NRC Website

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from. sample sta. tion 'C48, the concentration of Sr-90 was determined to be 87

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l SUPPLEMENTARY INF0RMATION l

REPORT NO.:

50-302/80-028-04T-0 FACILITY:

Crystal River Unit #3 REPORT DATE:

8 August 1980 OCCURRENCE DATE:

19 January 1980 (Determined at plant 7/30/80)

IDENTIFICATION OF OCCURRENCE:

Contrary to Environmental Technical Specification 5.6.2.C(2) a single measured value of radioacti-vity concentrations in critical pathway environ-mental medium samples exceeded ten times the con-trol station value.

CONDITIONS PRIOR TO OCCURRENCE:

N/A DESCRIPTION OF OCCURRENCE:

The semiannual green leafy vegetable sample analyzed from sample station C48 for Strontium 90 was determined to be eighty-seven picocuries pet eilliliter which exceeded ten times the con-trol station value of eight picoeuries per milli-liter.

DESIGNATION OF APPARENT CAUSE:

Apparent cause is undetermined at this time.

ANALYSIS OF OCCURRENCE:

Sampling from other pathways analyzed for Stron-tium and the Gamma Spectroscopy analysis of the green leafy vegetable sample are within normal limits.

In addition, the concentration of Strontium 89 was non-detectable in the sarple.

Crystal River Unit 3 gaseous releases contain more Sr-89 than Sr-90.

It is therefore possible that the Sr-90 in the sample is the result of laboratory analysis.

CORRECTIVE ACTION

A confirming re-analysis of the original sample vill be performed. If the level of Sr-90 at C48 is confirmed, follow-up sampling will be utilized to determine the extent of contamination.

Sup-plemental reports will be provided as necessary.

FAILURE DATA:

This is the first report for this type occurrence.