ML20150F827

Forwards Description of Violations of NPDES Permit During May 1988.Violations Involved Exceeding Limits for Biochemical Oxygen Demand & Suspended Solids in Sewage Plant Effluent

ML20150F827
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	06/30/1988
From:	Cockfield D PORTLAND GENERAL ELECTRIC CO.
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
NUDOCS 8807190075
Download: ML20150F827 (5)

Text

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RECEIVED

_{m _ PortlandGeneralElectricCompany 8E$0$4 y David W. Cockfield Vice President, Nuclear gn JUL 5 P2l l7 uG June 30, 1988 Trojan Nuclear Plant Docket 50-344 License NPF-1 Mr. John B. Martin Regional Administrator, Region V U. S. Nuclear Regulatory Commission Creeksido Oaks Office Park 1450 Maria Ln, Sto 210 Walnut Creek CA 94596

Dear Mr. Martin:

Violation of National Pollutant Discharge Elimination System (NPDES) Permit Pursuant to Section 3.2 of Appendix B to Facility Operating Licenso No. NPF-1 for the Trojan Nuclear Plant, the attached report is forwarded describing violations of the NPDES Permit during May 1988.

Tho violations involved excooding the limits for Biochemical oxygen Detaand (BOD) and suspended solids in the sewago plant effluent.

Sincoroly, Attachment c:

U.S. Nuclear Regulatory Commission Attn:

Document Control Desk Washington, DC 20555 Mr. Bill Dixon Stato of Oregon Department of Enorgy Mr. Robb Barr NRC Resident Inspector Trojan Nuclear Plant

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i Portland General ElectricCoiwy June 14, 1988 ES-230-88L Trojan GOV REL 9C Oregon Department of Environmental Quality Northwest Region Executive Building 811 SW 6th Ave Portland OR 97204 Gentlemen:

Enclosed is the NPDES report for the Trojan Nuclear Plant for May 1988.

Also enclosed are data required to be submitted in addition to that on standard NPDES forms.

The plant has been shut down since April 13 for the annual refueling outage.

The sewage plant effluent BOD and suspended solids concentrations exceeded the NPDES limits consistently during the month.

The violations of NPDES limits continue to be attributed to high influent flow rates from groundwater in-leakage and from the large temporary outage work force.

Flow for the month averaged 43,000 GPD, with the treatment plant designed for 25,000 GFD.

The following sewage plant effluent limits were exceeded during May:

i Date Recorded Value Limit 05/04/88 10.2 lbs suspended Max 6.3 lbs/ day solids discharged 05/04/88 51.6 ppm BOD discharged Max 30 ppm BOD 05/04/88 17.6 lbs BOD discharged Max 6.3 lbs/ day 05/11/88 36.0 ppm suspended solids Max 30 ppm suspended discharged solids 05/11/88 12.9 lbs suspended solids Max 6.3 lbs/ day discharged

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Department of Environmental Quality June 14, 1988 Page 2 Date Recorded Value-Limit 05/11/88 46.'l ppm BOD discharged Max 30 ppm BOD 05/11/88 16.5 lbs BOD discharged Max 6.3 lbs/ day 05/18/88 48.5 ppm suspended solids Max 30 ppm suspended discharged solids 05/18/88 18.6 lbs suspended solids Max 6.3 lbs/ day discharged 05/18/88 50.9 ppm BOD discharged Max 30 ppm 30D 05/18/88 19.5 lbs BOD discharged Max 6.3 lbs/ day 05/25/88 69.8 ppm suspended solids Max 30 ppm suspended discharged solids 05/25/88 29.1 lbs suspended solids Max 6.3 lbs/ day discharged 05/25/88 98.2 ppm BOD discharged Max 30 ppm BOD 05/25/88 40.9 lbs BOD discharged Max 6.3 lbs/ day 46.1 ppm monthly average 20 ppm monthly average suspended solids discharged suspended solids 17.7 lbs/ day monthly average 4.2 lbs/ day monthly suspended solids discharged average suspended solids 61.7 ppm monthly average 20 ppm monthly average BOD discharged BOD 23.6 lbs/ day monthly average 4.2 lbs/ day monthly BOD discharged average BOD The plant bearing cooling water system was cleaned on May 3, 1988.

Approximately 28 pounds of citric acid was added to this 530-gallon system to remove iron fouling.

The spent cleaning solution was drained to the neutralization tank and neutralized.

I The solution was then discharged to the settling basin to allow suspended material to settle out prior to discharge to the Columbia River.

Approximately 4.1 pounds of iron fouling was removed from the BCW system.

It is estimated that more than 90 percent was suspended material which was removed in the settling basin.

Permission to clean this system was received from the DEQ prior to the event.

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Parnand Goncal Ekxtre

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Dep'artment of Environmental Quality

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June'14, 1988 Page 3 f

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The main plant outfall pH and chlorine monitors were out of service from 0922 hours0.0107 days <br />0.256 hours <br />0.00152 weeks <br />3.50821e-4 months <br /> to 2015 hours0.0233 days <br />0.56 hours <br />0.00333 weeks <br />7.667075e-4 months <br /> on May 1 due to a power outage for routine maintenance, and from 0405 hours0.00469 days <br />0.113 hours <br />6.696429e-4 weeks <br />1.541025e-4 months <br /> to 0930 hours0.0108 days <br />0.258 hours <br />0.00154 weeks <br />3.53865e-4 months <br /> on May 8 when the sample pucp lost suction and had to be reprimed.

The main outfall pH, chlorine, temperature, and flow monitoring instrumentation was taken out of service on May 12.

These instruments were deenergized to allow installation of the new main outfall temperature / Btu monitoring system..The installation of this new system is expected to be completed during the first week of June, at which time all of the instrumentation will be returned to service.

All required backup sampling and calcula-tions were conducted to ensure NPDES permit compliance.

If you have questions, please contact'Stan Katkansky at 226-8409.

Sincerely, Nh R. J. Hess, Manager Environmental Sciences RJH/ko T-3560f Enclosure c:

William Dixon, DOE Art Olmstead Bill Peregoy Tom Walt Paul Yundt Dennis Norton

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TROJAN NUCLEAR PLANT MONT}LY NPDES DATA BlSCHARGE & DILUTION STRUCTURE MAY 1988 Ol-Jun-88 (Page i of 9) 09:30 AM EFFLUENT EFFLUENT TEMPERATURE DELTA 'i' HEAT DISCHAR6ED RESIDUAL FLON PH INF EFF I 1E6 BTU /HR Cl2 MAI CAlLY DAY (MBD)

MIN MAI AVS AVG MAI AVG MAI AV6 MAI INSI AVS DA!LY MAI TECH REMARKS 1864.3 MAI 18)6.0 18(9.0 1810 1816 18160/240 !!(79)

AVF ll(0.1lhli tilllllllllllitillllllllllllllllitillllllllllilllittillllliittill88!l188881118411888881888888881888118888888888888184888888888888 1

59.4 7.9 8.4 8.2 53 53 54 55 1

2 42 29 (0.1 (0.1 65 BTU CL2,PH CDS 2

59.3 8.0 8.2 B.1 53 53 54 55 1

2 42 37 (0.1 (0.1 is STU 005 3

-59.4 7.2 8.3 8.0 53 53 54 54 1

1 31 25 (0.1 (0.1 55 51L' 005 4

58.3 7.9 0.1 S.0 53 53 55 57 2

4 42 33 (0.1 (0.1 63 iTU 005 5

55.5 7.8 8.0 7.9 53 53 55 57 2

4 53 31 (0.1 (0.1 GS STU 005 6

52.2 7.0 7.5 7.6 53 53 55 55 2

2 30 25 (0.1 (0.1 65 liu 005 7

32.4 6.8 8.0 7.7 52 52 54 55 2

3 35 32 (0.1 (0.1 63 Blu 00S 8

31.7 7.1 E.1 7.B 53 53 55 57 2

4 43 32 (0.1 (0.1 SH iTU, CL2,FH 00S 9

32.1 7.9 8.1 B.0 53 53 56 57 3

4 33 26 (0.1 (0.1 SH BTU DOS 10 31.9 7.1 8.1 7.9 54 54 56 57 2

3 35 30 (0.1 (0.1 SH EIU 005 11 31.4 8.0 B.3 8.2 55 55 57 58 2

3 35 29 (0.1 (0.1 SH BTU CDS

!2 30.4 8.2 8.5 B.3 56 56 58 59 2

3 35 26 (0.1 (0.1 SH ALL INSTR. DOS 13 31.5 B.0 8.2 B.2 56 56 59 59 3

3 31 25 (0.1 (0.1 SH ALL IkSTR. 005 14 31.7 7.9 8.2 B.1 56 56 58 59 2

3 27 19 (0.1 (0.1 ft ALL lhSTR. 003 15 32.1 7.9 8.1 8.0 57 58 59 60 2

2 34 21 (0.1 (0.1 GS ALL INSTR. 035 16 31.5 7.9 8.3 B.1 58 58 59 60 1

2 28 13 (0.1 (0.1 63 ALL INSTR. 003 17 31.6 B.0 8.3 8.2 58 58 59 60 1

2 24 13 (0.1 (0.1 BS ALL INSTR DOS 18 31.2 7.9 B.2 8.0 58 58 59 60 1

2 28 13 (0.1 (0.1 63 ALL INSHt. 00S 19

!!.4 7.8 7.9 7.9 58 58 61 62 3

4 54 40 (0.1 (0.1 GS ALL lhSTR. DOS 20 31.7 7.2 B.1 7.7 58 59 61 62 3

3 44 30 (0.1 (0.! 65 ALL lhSTR. DOS 21 31.9 7.8 8.1 8.0 59 60 61 62 2

2 28 21 (0.1 (0.1 AH ALL INSTR DOS 22 31.7 7.9 8.1 E.0 59 60 61 62 2

2 30 23 (0.1 (0.1 63 Ai,L INSTR. DOS 23 31.1 7.9 8.1 8.0 59 59 61 62 2

3 33 li (0.1 (0.1 65 ALL INSTR. 00S 24 31.1 7.4 8.2 E.0 59 60 60 61 1

1 22 10 (0.1 (0.1 65 ALL 1%STR. DOS 25 31.1 7.9 8.2 E.1 60 60 61 61 1

1 21 12 (0.1 (0.1 65 ALL INSirt. 005 26 31.0 B.1 8.2 8.1 60 60 61 63 1

3 26 13 (0.1 -(0.1 53 ALL thSTR. 005 27 42.9 7.7 6.3 i.1 59 60 60 62 1

2 26 11 (0.1 (0.1 65 A'.L INSTR. 00S 28 36.3 8.1 8.3 E.2 59 59 60 62 1

3 23 9 (0.1 (0.1 Sh ALL INSTR. 005 29 58.4 8.0 8.3 E.2 59 60 60 62 1

2 51 15 (0.1 (0.1 SW ALL lhSTR. 003 30 59.0 B.3 B.4 6.4 59 59 59 59 0

0 0

0 (0.1 (0.1 ES ALL INSTR. 005 31 59.5 7.4 8.3 6.1 59 59 59 60 0

1 22 1 (0.1 (0.1 6S ALL lhSTR. 005 l

t illllllillllllllllllll i t tillllllllillllllllllli t t illt tllt illlllllllllllilllllllllillllllllllllllllllillllllllllllillllllli t illli TOTAL 1233.2 240.0 253.7 249.1 1751 1758 1901 1834 50 77 1013 664 (0.1 (0.1 MIN 30.4 6.B 7.8 7.6 52 52 54 54 0

0 0

0 (0.1 (0.1 I

MAI 19.4 B.3 2.5 8.4 60 60 61 63 3

4 54 40 (0.1 (0.1 AVE 39.8 7.7

8. L.3 56 57 59 59 2

2 33 21 (0.1 (0.1 HV!Sita 0 (4/87) i