ML19319E503
| ML19319E503 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 07/01/1975 |
| From: | ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML19319E502 | List: |
| References | |
| NUDOCS 8004110776 | |
| Download: ML19319E503 (3) | |
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I 1 *. Non-Routine, Non-Radiological Envi ronmental Report No.
50-313/75-37 2.
Report Date_: July 1, 1975 3.
Occurrence Date:
June 16, 1975 4.
Facility:
Arkansas Nuclear One-Unit 1 6
Russellville, Arkansas i
S.
Identification of Occurrence:
Chloride concentration in condenser circulating water increased across the plant in excess of ETS limits.
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Conditions Prior to Occurrence:
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Steady-State Power X
Reactor Power 2467 3twth Hot Standby Net Output 790 gye Cold Shutdown Percent of Full Power 96 e, Refueling Shutdown Load Changes During Routinc j
Power Operation Routine Startup Operation Routin shutdown Operation Other (specify) i i
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Description of Occurrence:
Samples taken from'the discharge canal and at point 20 on June 16, 19/5, indicate that chloride concentration in the discharge canal was higher i
than chloride concentration at point'20 by 102 mg/1. ETS limit is i
25 mg/1.
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+= --
-r-t
-w-w r
-w r r t-
- -i w-r-rr=-r
,.----+-,--,---.-sesc,e v-r - - e t-a e r w----w----
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- y Non-Routine, Non-Radiological Environmental Report No.
50-313/75-37
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'8 Designation of Apparent Cause of Occurrence:
. Design Proceduro Manufacture Unusual Service Condition Including Environmental Installation /'
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Cohstruction.
Component Failurc i
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Operator i
j Other (specify)
X
-. t Neutralizing tank was draining in the discharge fiume at time of sampling.
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f 9 '. Analysis of Occurrence:
The neutralizing tank, which contains water impurities remaining after regenerating condenste demineralizers and plant makeup water deminera-lizers, was being drained-into the discharge fiume when sampics were-taken. No other liquid releases were in progress at time of sampling.
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N, Non-Routine, Non-Radiological Environmental Report No.
50-313/75-37 10.
Corrective Action:
We are reviewing our ETS chemical limits with the Arkansas Department of.
Pollution Control and Ecology.
It has been determined that there is no basis for many of ou'r ETS chemical discharge limits and that our water sampling and testing program does not verify that we are or are not 4
meeting the conditions of our permits to discharge issued by the Arkansas Department of Pollution Control and Ecology or the EPA.
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Failure Data:
The circumstances of this report are similar to those reported in Non-R 'itine, Non-Radiological Environmental Reports No. 50-313/75-25 thrclgh 50-313/75-36.
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