ML19319E517
| ML19319E517 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 07/01/1975 |
| From: | ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML19319E515 | List: |
| References | |
| NUDOCS 8004110787 | |
| Download: ML19319E517 (3) | |
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Non-Routine, Non-Radiological Environmental Report No.
50-313/75-38 l
2.
Report Date:
= July 1, 1975 3.
Occurrence Dato:
June 23, 1975 4.
Facility:
Arkansas Nuclear One-Unit 1 Russellville, Arkansas 5.
Identification of Occurrence:
l Chloride concentra-tion in condenser circulating water increased across the plant in excess of ETS limits.
S 6.
Conditions Prior to Occurrence:
Steady-State Power X
Reactor Power 2054 MWth i
Hot Standby Net Output 660 MWe 3
Cold Shutdown Percent of Full Power 80 %
i Refueling Shutdown
, Load Changes During Routine Power Operation I
' Routine Startup i
Operation Routine Shutdown Operation Other (specify) s 4
7.
D_e_scription of Occurrence:
Samples taken' from the discharge canal and at point 20 on June 23, 1975 indicate that chloride concentration in the discharge canal was higher than chloride' concentration at point 20 by 65 mg/1. ETS limit is e
25 mg/1.
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O Non-Routine, Non-Radiological Environmental Report No.
50-313/75-38 1
8.
Designation of Apparent Cause of Occurrence:
I i
q i-Design Procedure Manufacture Unusual Service Condition Including Environmental Installation /
Construction Component Failure Operator l
i Other (specify)
X emp l Neutralizing tank was draining in the discharge flume at time of sampling.
9.
Analysis of Occurrence:
The neutralizing tank, which contains water impurities remaining after
-regenerating condensate demineralizers and plant. makeup water deminera-lizers, was being drained into the discharge fiume when samples were taken. No other liquid releases were in progress at time of sampling.
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T' j Non-Routine, Non-Radiological Environmental Report No.
50-313/75-38 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 i
. basis-for many of our ETS. chemical discharge limits and that our water sampling and testing program does not verify that we are or are not meet-ing the conditions of our permits to discharge issued by the Arkansas Department of Pollution Control.and' Ecology or the EPA.
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I 11.
Failure Data:
The circumstances of this report are similar to those reported in Non-Routine, Non-Radiological Environmental Reports No. 50-313/75-25 through 50-313/75-37.
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