ML20154B775
| ML20154B775 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 08/30/1988 |
| From: | Cockfield D PORTLAND GENERAL ELECTRIC CO. |
| To: | Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| NUDOCS 8809140125 | |
| Download: ML20154B775 (4) | |
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David W Cockfield Vice President, Nuclear 3 SEP / AIO: Sg August 30, 1988 Trojan Nuclear Plant Docket 50-344 License NPF-1 Mr. John B. Martin Regional Admittistrator, Region V U. S. Nuclear Regulatory Commission Creeksido Oaks Office Park 1450 Maria Ln, Ste 210 Walnut Creek CA 94596
Dear Mr. Martin:
Violation of National Follutant Discharge Elim! nation _ System g qES) Pernit.
Pursuant to Section 1.2 of Appendix B te Facility Operating 1.icense No. NPF-1 for the Trojan Nuclear Plant, the attached report is f orwarded describing violations of the NPDES Pormit during July 1988.
The violations involved exceeding the limits for Biochemical oxygen Demand (BOD) and suspended solids in the sewago plant effluent.
Sincerely,
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Attachment c:
U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Mr. Bill Dixon l
State of Oregon Department of Energy Mr. Robb Barr NRC Resident Inspector Trojan Nuclear Plant 7, /
8809140125 880830 7
PDR ADOCK 05000344 l-P PNU
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u August 10. 1988 ES-29E-88L Trojan GOV REL 9C Oregon Department of Environmental Quality Northwest Region Executive Building 811 SW Sixth Ave Portland OR 97204 Gentlemen:
Enclosed is the NPDES report for the Trojan Nuclear Plant for July 1988.
Also enclosed are data required to be submitted in addition to that on standard NPDES forms.
The plant resumed power operation on July 11 after completion of l
the annual refueling outage, i
The sewage plant effluent suspended solids and BOD maximum and monthly average limits were exceeded during the month.
The l
maximum limits were exceeded during the first week of July.
Sewage plant effluent quality improved during the month as the temporary outage workforce was reduced.
Suspended solids concentrations were well within limits for the last three weeks of the month.
BOD concentrations for this time period were below the maximum limits, but remained above monthly average limits.
Work to repair broken / leaking sewer lines and canways was started during the month.
Repair of these damaged lines /manways should significantly reduce rain / groundwater inleakage.
l The following sewage plant effluent limits were exceeded during April:
4 Date Recorded Value Limit 7-1-88 60.1 ppm suspended solids Max 30 ppm discharged (SSD) 15.5 lbs SSD Max 6.3 lbs/ day l
7-2-88 66.5 ppm SSD Max 30 ppm i
17.2 lbs SSD Max 6.3 lbs/ day i
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Department'of Environmental Quality
- August 10, 1988 Page 2 7-3-88 61.3 ppm SSD Max 30 ppm 10.2 lbs SSD Max 6.3 lbs/ day 7-6-88 50.9 ppm SSD Max 30 ppm l
12.7 lbs SSD Max 6.3 lbs/ day 33.7 ppm BOD discharged Max 30 ppm 8.4 lbs BOD discharged Max 6.3 lbs/ day Parameter Monthly Averace Recorded Limit 4
Suspended solids 37.6 ppm 20 ppm 8.3 lbs 4.2 lbs BOD 26.0 ppm 20 ppm 4.7 lbs 4.2 lbs The main plant outfall pH and chlorine monitors were out of service at the beginning of the July reporting period because of sample pump failure.
The chlorine monitor sample pump was repaired and returned to service at 1030 hours0.0119 days <br />0.286 hours <br />0.0017 weeks <br />3.91915e-4 months <br /> on July 7.
The pH sample ptimp will require extensive repairs and will not be in service until early August.
During periods of instrumentation e
outage all required backup samplas were taken and were within permit limitations.
If you have questions, please contact Stan Katkansky at 226-8409.
Sincerely.
I
/
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kJ4Ik R. J. Hess, Manager Environmental Sciences RJH/SCK:sle Enclosure es 1014 c:
William Dixon, DOE Art Olmstead Bill Peregoy Tom Walt Paul Yundt Der.nis Nortor.
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