ML19309D829
| ML19309D829 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 09/08/1975 |
| From: | ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML19309D817 | List: |
| References | |
| NUDOCS 8004110689 | |
| Download: ML19309D829 (3) | |
Text
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Non-Routine, Non-Radiological Environmental Report No. 50-313/75-.,7 2.
Report Date:
9/S/75 3.
Occurrence Date:
9/3/75 4.
Facility:
Arkansas Nuclear One-Unit 1 Russellville, Arkansas 5.
Identification of Occurrence:
Chemical concentration of ammonia increased across the plant equal to the Environmental Technical Sp.ecification limit.
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6.
Conditions Prior to Occurrence:
Steady-State Power X
Reactor Power 2363 bMth Hot Standby Net Output 778 Mwe Cold Shutdown Percent of Full Power 92 %
Refueling Shutdown Load Changes During Routine Power Operation Routine Startup Operation Routine Shutdown Operation Other (specify) s i
7.
Description of Occurrence:
Samples taken from the intake and discharge canal indicate that ammonia concentration in the discharge canal was 0.05 mg/l greater than ammonia concentration in the intake canal.
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s Non-Routine, Non-Radiological Environmental Report No.
50-313/75-47 l
8.
Designation of Apparent Cause of Occurrence:
Design Procedure Manufacture Unusual Service Condition Including Environmental Installation /
Construction Component Failure Operator Other (specify)
X Neutralizing tank draining into discharge fiume at time of sampling.
4 9.
Analysis of Occurrence:
The neutralizing tank which contains water impurities remaining after regenerating condensate demineralizers and plant makeup water deminer-alizers was being drained into the discharge flume when samples were 3
taken. No other liquid releases were in progress at the time of sampling.
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Non-Routine, Non-Radiological Environmental Report No.
50-313/75-47 10.
Corrective Action:
i Revisions to our Environmental Technical Specifications concerning chemical discharges have been prepared and submitted to.the NRC for approval.
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4 11.
Failure Data:
The circumstances of this report are similar to those reported in Non-Routine, Non-Radiological Environmental Reports No. 50-313/75-28 through 50-313/75-46.
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