ML19319E415
| ML19319E415 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 10/01/1975 |
| From: | ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML19319E412 | List: |
| References | |
| NUDOCS 8004100697 | |
| Download: ML19319E415 (1) | |
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Non-Routine, Non-Radiological Environmental Report No.
50-313/75-49.
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Report Date:
10/1/75 3.
Occurrence Date:
9/24/75 4.
Facility:
- 1 ear One-Unit 1 Russe 11vit e, Arkansas 5.
Identification of Occurrence:
Turbidity increased across the plant in excess of Environmental Technical Specification limit.
'6.
Conditions Prior to Occurrence:
Steady-State Power.
X Reactor Power 2440 M11th
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$1e Hot Standby Net Output 794 Cold Shutdown Percent of Full Power 95 g Refueling Shutdown Load Changes During-Routine Power Operation Operation.
Routine Shutdown Operation Other (specify) i i
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Description of Occurrence:
Analysis of sampics taken from the intake canal and discharge canal on 9/22/75 indicate that turbidity in the discharge embayment was 11.7%
greater than turbidity in intake canal.
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No,n-Routine, Non-Radiological Environmental Report No. 50-313/75-49
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Designation of Apparent Cause of Occurrence:
Design Procedure s
Manufacture Unusual Service Condition __-
Including Environmental Installation /
Construction Component Failure Operator Other (specify)
X Recent rains caused Arkansas River to rise and back muddy waters up into the discharge embayment.
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Analysis of Occurrence:
Recent heavy rains in the state of Oklahoma and in western Arkansas muddled the Arkansas River and caused it to rise, backing waters up into the discharge embayment. Water in the Illinois Bayou embayment where the plant extracts cooling water was much clearer in comparison to.the river.
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,3 5-Non-Routine, Non-Radio'.agical Environmental Report No.
50-313/75-49 1
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. Corrective Action:
Revision to Environmental Technical Specifications concernirig chemical
-discharges have been prepared and submitted to the NRC for approval.
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i 11 Failure Data:
i The circumstances of this report are similar to those reported in Non-Routine, Non-Radiological Environmental Reports No. 50-313/75-28 through 50-313/75-48.
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