ML19309D989
| ML19309D989 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 06/19/1975 |
| From: | ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML19309D986 | List: |
| References | |
| NUDOCS 8004110771 | |
| Download: ML19309D989 (3) | |
Text
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Non-Routine, Non-Radiolop.ical En'.
wental Report No.
50-313/75-35 2.
Report Date:
June 19,1975 3.
Occurrence Date:
June 9, 1975 4.
Facility:
Arkansas Nuclear One-Unit !
Russellville3 Arkansas S.
Identification of Occurrence:
Chemical concentration of one parameter increased across the plant in excess of Environmental Technical Specification limits.
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Conditions Prior to Occurrence:
Steady-State Power X
Reactor Power 2440 MNth Hot Standby Net Output
'!Xe Cold Shutdown Percent of Fu'll Power 95.,
Refueling Shutdown Load Changes During Routine f'~~N Power Operation k ')
Routine Startup
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t Operation Routi: e Shutdown Operation Other (specify) s)
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Description of Occurrence:
1 Samples taken from the intake and discharge canals and at poir.t 20 on June 9,1975, indicate that chemical concentrations of one parameter increased across the plant in excess of ETS limits:
Parameter Unit Increase ETS Limit Iron, point 20 vs. discharge mg/l 0.432 0.3 es f
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Non-Routine, Non-Radiological Envire;. < atal Report No.
50-313/75-35 d
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Designation of Apparent Cause of Occurrence:
Design Procedurc Manufacture
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Unusual Service Condition Including Environmental Installation /
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Construction Component Failurc i
Operator Other (specify)
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Neutralizing tank draining into discharge canal at time of sampling.
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Analysis of Occurrence:
Samples were taken when the neutralizing tank was being drained into the discharge canal.
Four circulating water pumps were in operation provid-i ing approximately 750,000 gallons per minute dilution ficw. No other
' liquid releases were in progress at time of sampling. The neutralizing-tank contain; water impurities remaining after regenerating condensate
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demineralizers.
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50-313/75-35 Non-Routine, Non-Radiological Environmc. il Report No.
10.
Corrective Action:
We are' reviewing our ETS chemical limits with the Arkansas Department of j
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 Technical Specification water sampling program does not verify that we are or are not meeting the e-
.itions of our permits to discharge issued by the Arkansas Pollutio ntrol Commission or the EPA.
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Failure Data:
The circumstances of the report are similar to those reported in Non-Routine, Non-Radiological Environmental Reports.No. 50-313/75-25 through 50 313/75-34.
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