ML19317H245
| ML19317H245 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 11/17/1975 |
| From: | ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML19317H244 | List: |
| References | |
| 50-313-75-56, NUDOCS 8005020418 | |
| Download: ML19317H245 (4) | |
Text
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i L,1 50-313/75-56 l'
.Non-Routinc, Non-Radiological Environmental Report No.
Occurrence Date: November 11,197S 2.
-Report Date: November 17, 1975 3.
4.
Facility: Arkansas Nuclear One-Unit 1 Russellville, Arkansas 5.
Identification of Occurrence:
+-
in excess Chemical concentration of tiiree parameters increased across plant
- of ETS limits.
-6.
Conditions Prior to Occurrence:
Reactor Power 2054 MWth Steady-State Power X'
Net Output 669 MWe Hot Standby Percent of Full Power Cold Shutdown Load _ Changes During Routine Refueling Shutd'own-Power Operation Routine Startup Operatio.
' Routine Shute 3wn Operation-Other (specify) 7.
Description of Occurrence:
20 on Sampics taken from the intake and discharge canals and at pt. indica O
November 10,'1975, in excess of ETS limits:
parameters increased across' tlic plant J
ETS Limit Units Increase Parameter 18 10 I'
Turbidity, intake vs discharge mg/l 0.22 0.05 Ammonia, intake 'vs discharge mg/l 0.18 0.05'
- Ammonia-pt. 20'vs' discharge
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8 005 020 gg w_
J t-
s.
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~Non-Routine,'Non-Radiological Environmental Report No. 50-313/75-56
- 8. _ Designaticn of Apparent Cause of Occurrence:
a Procedure Design-
.e Manufacture Unusual Service Condition Including Environmental
, Installation /
Construction Component Failure Operator Other (specify) Neutralizing tank draining into discharge fiume at time-of sampling.
4 i
1
- 9. - Analysis of Occurrence:
9 1hc neutralizing tank which contains water impurities remaining after regenerating' condensate demineralizers and plant make up water demin.
eralizers was bein'g drained into the discharge flume when :amples were taken. -. No other -liquid releases were in progress at time of sampling and four circulating water pumps were running providing 750,000 gpm -
dilution flow.
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a Non-Routine, Non-Radiological Environmental Report No. 50-313/75-56
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10.
Corrective Action:
G Revision to ETS concerning chemical discharges has been-prepared and submitted to NRC for approval.
i i
e 11.
Failure Data:
The circumstances of this report are similar to those reported in 50-313/75-28 Non-Routine, Non-Radiological Environmental Report through 50-313/75-55.
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NRC DISTRl_
TlON FOR PART 50 DOCKET MAT' ML (TEMPORARY FORM) o CONTROL NO:
191R FILE: I MI N Mr W L>
FROM: [t Q
DATE OF DOC DATE REC'D LTR TWX RPT OTHER J.D. Phillips 11-17-75 11-20-75 XXX TO:
ORIG CC OTHER SENTimc PDR XXX SENT LOCAL PDR
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Howard Nnno 90 CLASS UNCLASS PROPINFO INPUT NO CYS REC'D DOCKET NO:
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XXX 20 50-313 DESCRIPTION:
ENCLOSURES:
i Environmental Occurrence # 75-56, on 11-11-75/
Letter trans the following.......
Concerning the increase of three parameters across the plant.......
(20 Cys. Received)
PLANT N AME:
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CHAPMAN DEYOUNG (L)
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YOUNGBLOOD H. SMITH (L)
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