ML19317G233

LER 78-014/04X-0:on 780101-0502,environ Samples Not Analyzed W/Procedures Providing Lld'S Equal to or Less than ETS Requirements.Caused by Inadequate Techniques &/Or Equipment. Normal Samples Taken.(Supplementary Info Sheet Only.)

ML19317G233
Person / Time
Site:	Crystal River
Issue date:	05/11/1978
From:	FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19317G230	List: ML19317G229 ML19317G233
References
LER-78-014-04X, LER-78-14-4X, NUDOCS 8002280866
Download: ML19317G233 (2)

Text

._- -__-- ___

~

SUPPLEMENTARY INFORMATION N

)

/eport No.: 50-302/78-014/04X-0 *

2. Facility: Crystal River Unic #3 -

3. Report Date: 11 May 1978

4. Occurrence Date: 1 January - 5 May 1978 (discovered 5/5/78) decemined at plant 5/10/78.

5. Identification of Occurrenc,e:

Envircamental samples were not analyzed using procedures which provided LLD's equal-to or less than those required by the Environmental Technical Specifications.

6. Conditions Prior to Occurrence:

N/A

7. Description of Occurrence:

The following samples had LLD's greater than those required for the dates indicated below: i Seawater (6 stations) April

( 1 ?ETS) 1 Crabs (2 stations) First Half

( # 7ETS) 8 e .-

Carnivorous Fish (2 stations) First Half

( # > ETS) 9 Vegetation (3 stations) First Half

( # 7 ETS) 22

8. Designation of Apoarent Cause:

Inadequate techniques, procedures, and/or equipment to achieve the required LLD's.

9. Analysis of Occurrence:

Of the 40 nuclides whose LLD's were greater than required, the activity associated with einenty-four (24) of the nuclides was non-detectable and another one nuclide had activity less chan the sample LLD. Five (5) more nuclides had detectable activities which were less than the preoperational 95 percentile values and eight (8) nuclides had activities less than 10 times the pre-operational 95 percantile values. The final two (2) nuclides had activities greater than 10 times the preoperational 95 percentile values.

For the eight (8) auclides with activities greater than the preoperational 95 percantile values, four (4) nucifdes were not detected in' the releases from the plant. They are '

Ru-106 and Th-232 (each was found at two different sample stations in the various path-vays). Another nuclide Ca-134 was found in the Control Pathway for Crabs, probably due A

U 8002280 M

s SalysisofOccurrence: Cont'd to the extremely small sample size. No. Cs-134 was found in the Critical Station.

The r-ining three (3) nuclides and the two (2) nuclides with activity . greater than 10 times the preoperational 95 percentile value were found in the Vegetation Pathway. The nuclides are Zr-95 (at two(2) and I-131 (at three stations). This activity is due to the fallout from the 14 March nuclear weapons cast by the People's Republic of China. (The Vegetation Pathway samples were collected on 31 March '78).

10. Corrective Action:

Theannua$averageLLDforTh-232inSeawaterisequal-toorlesschanthatrequired.

No further corrective actions are necessary for the Seawater Pathway.

The greater than required LLD's in the Crab Pathway is due to an extremely small sample volume collected for the control station. A normal sample was taken at the critical station and all LLD's were less than those required. No further corrective actions are necessary for the Crab Pathway.

The greater than required LLD's in the Carnivorous Fish Pathway is due to an extremely i small sample volume collected for the control station. A normal sample was taken at  ;"

the critical station and all LLD's were less than those required. No further corrective actions are necessary for the Carnivorous Fish Pathway.

The greater than equired LLD's in the Vegetation Pathway is due to the increased activity of the samples. Calculations have shown that the LLD's for this type analysis

) will be less than those required when normal background radiation levels are present. ,

V No further correctiye actions are necessary for the Vegetation Pathway. i

11. FaiiureData:

This is the eighth reporr for this type occurrence: Refer to:

LER 77-111E, dated 21 September 1977 LER 77-134E, dated 8 November 1977 ,

LER 77-141E, dated 7 December 1977 '

LER 77-144E, dated 15 December 1977 LER 77-164E, dated 26 January 1978 LER 78-012/04X-0, dated 17 April 1978 LER 78-013/04X-0, dated 24 April 1978 o

o