ML19320A265

Nonroutine Nonradiological Environ Rept 50-313/75-25:on 750417,facility Circulating Water Turbidity Exceeded ETS Limits.Caused by Sample Inaccuracy.Weekly ETS Chemical Limit Interrogation Rept Instituted

ML19320A265
Person / Time
Site:	Arkansas Nuclear
Issue date:	05/06/1975
From:	ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML19320A257	List: ML19320A256 ML19320A265 ML19320A271 ML19320A276
References
NUDOCS 8004210553
Download: ML19320A265 (4)

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\v/ 1. Non-Routine, Non-Radiological Environmental Report No. 50-313/75-25

2. Report Date: 5/6/75 3. Occurrence Date: See Item 5 below.

4 Facility: Arkansas Nuclear One-Unit 1 Rusa'11ville, Arkansas

5. Identification of Occurrence:

Details of occurrence are contained in letter JWA-1014 of April 17, 1975, attached. Reportable occurrences occurred only on dated when circulating water pumps were running.

6. Conditions Prior to Occurrence: -

Steady-State Power Reactor Power MWth llot Standby 'Not Output MWe Cold Shutdown Percent of Full Power  %

Refueling Shutdown Load Changes During Routine Power Operat_on f}

(j Routine Startup Operation ,

Routine Shutdown Operation Other (specify)

Varying conditions.

7. Description of Occurrence:

See Item 5.

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is Non-Routine, Non-Radiological Environmental Report No. 50-313/75-25 1

8. ' Designation of Apparent Cause of Occurrenec:

Design Procedure

[ Manufacture , Unusual Service Condition Including Environmental Installation / .

Construction Component Failure l Operator I

' Other (specify)

' It is believed that samples taken are not truly represe'ntative of lake ,

conditions; therefore, occurrence is not realistic.

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j 9. Analysis of Occurrence:

. Interrogation of lab results against Environmental Technical Specifica- '

tion limits was not being done on a timely schedule; therefore, these 1 occurrences are being reported tardy. In addition, there was a Tech.

Spec, interpretation discrepancy among various persons responsible for j interrogating lab results. . 3

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10. Corrective Action: j

! An Environmental Technical Specification Chemical Limit Interrogation j Report has been instituted -that is completed weekly.

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V ARKANSAS POWER G. LIGHT COP /IPANY INTRA COMPANY CQ A AESPONDENCE Arkansas Nuclear One i

Russellville, Arkansas April 1,7, 1975 JNA-1014 hE0lWRXN ,i l { ',

TO: W. Cavanaugh, III FRO't: John N. Anderson, Jr. '

SUBJECI': ENVIRONMENTAL TEGINICAL SPECIFICATION 2.3.3 FILE: .D58LL-1 44.5094o This is to report sample results this year that may indicate that a report should be made to the NRC. hhether or not a report should be made depends .

upon interpretation of subject Technical Specification.

(m) Possible reportable conditions are as follows:

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Conductivity, umho/cm Turbidity, JIU Total Dissolved Solids,PPhi Date Intake Disch. Diff(%) Intake Disch. Diff(%) Intake Disch. Diff(%)

1/27/75 433 405 50 42 208 256 23 2/24/75 158 160 42 50 19 124 103 3/3/75 235 230 60 48 216 264 22 3/10/75 260 270 8 15 87 232 280 20 3/17/75* 180 225 25 25 35 40 44 108 45 5 3/25/75* 11's 88 45 95 10 ^ 148 116 3/31/75* 43 45 60 85 41 78 62 4/7/75* 104 100 48 85 77 152 180 18

• No circulating water pumps running on this date.

In our interpretation of the subject Technical Specification turbidity and total dissolved solids are not required to be run ualess conductivity of the .

water in the discharge canal is 10% greater than conductivity in the intake -

canal. If this interpretation is correct, turbidity and total dissolved solids should not be recorded for any of the above dates except March 17, 1975 and no reports should be made since the circulating water pumps were not running on that date.

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