ML18010A615
| ML18010A615 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 12/31/1991 |
| From: | Griffith J, Mazo G, Vaughn G CAROLINA POWER & LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| CON-NRC-779 NUDOCS 9204280389 | |
| Download: ML18010A615 (16) | |
Text
ACCELERATED DePUBUTION DEMONS'jeATION SYSTEM REGULATORY INFORMATXON DISTRXBUTION SYSTEM (RIDS)
ACCESSION NBR:9204280389 DOC.DA NOTARIZED: NO DOCKET FACIL:50-400 Shearon Harris Nuclear Power Plant, Unit 1, Carolina 05000400 AUTH. NAME AUTHOR AFFILIATION VAUGHN,G.E. Carolina Power & Light: Co.
MAZO,G.P. Carolina Power & Light Co.
GRIFFITH,J.W. Carolina Power & Light Co. R RECXP.NAME RECIPIENT AFFILIATION
SUBJECT:
"Shearon Harris Nuclear Power Plant Unit al Environ (Nonradiological) Operating Rept,199 . 9 r. D DISTRIBUTION CODE: IE25D COPIES RECEIVED:LTR TITLE: Environmental Monitoring Rept (per Tech Specs)
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NOTES:Application for permit renewal filed. 05000400 A
RECIPIENT COPIES RECIPIENT COPIES D ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-1 LA 3 3 PD2-1 PD 1 1 D MOZAFARI,B. 1 1 INTERNAL: 1 1 NRR/DREP/PRPBll 01 1 1 RGN2 DRSS/RPB RGN2 FXLE 02 1 1 EXTERNAL EG&G S IMPSON i F 2 2 NRC PDR R
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NOTE TO ALL "RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM PI-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED: LTTR 14 ENCL 14
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@ME Carolina Power & Light Company HARRIS NUCLEAR PROJECT P.O. Box 165 New Hill, North Carolina 27562 A~R ~ c tsar Letter Number: HO-920083 NRC-779 Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT DOCKET NO. 50-400 LICENSE NO. NPF-63 ANNUAL ENVIRONMENTAL NONRADIOLOGICAL OPERATING REPORT Gentlemen:
In accordance with Section 5.4.1 of the Environmental Protection Plan issued as Appendix B of the Operating License (NPF-63) for the Shearon Harris Nuclear Power Plant, Unit No. 1, Carolina Power and Light Company herewith submits the enclosed Annual Environmental (Nonradiological) Operating Report for 1991
'ours very truly, G. E. Vaughn Vice President Harris Nuclear Project MGW:dmw Enclosure cc: Mr. S. D. Ebneter (NRC-RII)
Mr. J. E. Tedrow (NRC-SHNPP)
MEM/HO-920083/1/OS1
( '7204280389 9ii23i 05000400 PDR ADOCK R PDR
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SHEARON HARRIS NUCLEAR POWER PLANT UNIT 1 ANNUALENVIRONMENTAL (NONRADIOLOGICAL)
OPERATING REPORT for January 1, 1991-December 31, 1991 CAROLINAPOWER & LIGHT COMPANY Docket No. 50-400 Facility Operating License No. NPF-63
1.0 INTRODUCTION
Carolina Power &, Light Company (CP&L) received a low-power Facility Operating License (No. NPF-53) and a full-power Facility Operating License (No. NPF-63) for the Shearon Harris Nuclear Power Plant, Unit 1 (SHNPP), from the U,S. Nuclear Regulatory Commission (NRC) on October 24, 1986, and January 12, 1987, respectively. Appendix B (the Environmental Protection Plan [nonradiological]) ofbothlicensesrequiredsubmittal ofan AnnualEnvironmental-(nonradiological) Operating Report to the NRC describing the implementation of the plan during the previous year. The purpose of this document is to fulfillthat requirement for the period of January 1, 1991, through December 31, 1991.
2.0 ENVIRONMENTALMONITORING [EPP Section 4.2]
2.1 Aquatic Monitoring The National Pollutant Discharge Elimination System (NPDES) permit (NC0039586) issued on January 18, 1990, remained in effect for most of 1991. Under the authority of the Clean Water Act, the state of North Carolina renewed the NPDES permit, effective November 1, 1991, which willremain in effect until March 31, 1996. This renewed permit reflected areclassification of the facilityfrom a Class IIto a Class IIIdesignation. The Class HI rating requires that the laboratory analysis performed on all effluent samples be performed by a laboratory certified by the state. The Harris Plantlaboratory is in the process of becoming certified. Also, as a consequence of becoming a Class IIIfacility, the sampling >
frequency for the analysis of Biological Oxygen Demand (BOD), Total Suspended Solids *
(TSS), and fecal coliform of the sanitary waste treatment plant willbe increased from twice per month to daily.
2.1.1 ~ffl Routine effluent monitoring was conducted and reported to the North Carolina Division of Environmental Management (NCDEM) as required by the NPDES permit. Out of approximately 1306 samples collected, there were approximately 4268 analyses performed. The following is a summary of NPDES noncompliances that occurred during 1991:
A. On March 10, 1991, the KBuildingsewage collection tankpump was discovered to be deenergized during an electrical buss outage. The inoperable pump caused the collection tank to overflow leaking about 50 gallons of raw sewage into the area catch basin. The catch basin already contained approximately 500 gallons ofrainwater. Upon high water level, the catch basin pump automatically pumped the water into the storm drains. No impact was observed in the lake at the storm drain discharge point.
B. On April 29, 1991, the Harris cooling tower blowdown discharge was found to be out of compliance for zinc. The zinc concentration in the cooling tower blowdown sample of April29, 1991, was 1.63 mg/liter. The concentration limit
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for zinc is 1.0 mg/liter for the daily maximum and monthly average. The chemical feed was secured. However, because of low blowdown on April29 and 30, the sample taken on April30 was also out of compliance at 1.06 mg/liter. As a result, the monthly average limitfor zinc was also exceeded at a concentration of 1.22 mg/liter. Analysis of grab samples showed a return to within limits on May 1, 1991. Any potential toxicity was precluded by the lake recirculation flow of approximately 4,000-6,000 gallons/minute for radiological waste dilution.
The source of this excursion was a personnel error in improperly starting up the chemical feed system after a lengthy shutdown.
C. The Sanitary Sewage Treatment effluent was out of compliance for 5-day BOD on July 17, 1991. It is believed that this composite sample was inadvertently contaminated based upon (1) the TSS and fecal coliform results for July 17, 1991, were well within specification; (2) results from samples obtained prior to and after July 17, 1991, were also well within limits; and (3) the sewage treatment plant was operating normally as indicated by microbiological and chemical test results. A notice of violation was received from NCDEM regarding this exceedance.
D. On September 28, 1991, the Harris cooling tower blowdown discharge was out of compliance for the length of time of chlorine release. The time of chlorine release was 365 minutes. The daily maximum limitis 120 minutes. The reason for this exceedance was a malfunction of the dechlorination system that was a "
result of a faulty chemical feed pump. The dechlorination system appeared to be working intermittently. If the backup dechlorination system had been functioning properlyandnotoutofservice forrepairs, the incidentwould have been prevented. The total residual chlorine concentration never exceeded 0.5 mg/liter.
To prevent this from recurring, the faulty chemical pump was restored to normal .
operation, and the backup dechlorination system was repaired and placed in service.
AllNPDES noncompliances were corrected promptly and were not of an ongoing nature. All noncompliances were reported to NCDEM with no additional actions required by NCDEM.
2.1.
Through observations made during routine biological monitoring at Harris Lake during the week of October 1, 1991, it was determined that the major concentrations of Asiatic clams Corbicula fluminea were still in the vicinity of the two public boat ramps. Observations also indicated that the clams have continued to spread slowly throughout Harris Lake. Three Asiatic clams were collected at the mouth of the main intake canal. No Asiatic clams were collected in the main intake structures, the auxiliary intake structures, the auxiliary intake canal, or in plant service water (fire protection) system. Monitoring for the Asiatic clams in the intake canals and intake structures is scheduled to continue.
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Since 1988 hydrilla Hydrilla verticillata, a nonnative aquatic weed, has been established in Harris Lake. A survey made during the fall of 1991 revealed that hydrilla was established in water less than 9 feet deep in all major arms of the lake except for the Buckhorn Creek arm (the southernmost). The total areal coverage was estimated to be approximately 1050 acres. Hydrilla was not observed growing in the auxiliary reservoir. No impacts to Harris Plantoperations have occurred nor are they expected because of the low velocity of water drawn into the cooling tower makeup water intake structure. In the spring of 1991, Company biologists met with members of several state and federal environmental regulatory agencies to form the Harris Lake Hydrilla Task Force at the request of the chairman of the North Carolina Interagency Council on Aquatic Weeds. The consensus of the task force was that if hydrilla needs to be eliminated from Harris Lake, stocking grass carp would probably be the method of choice, That would possibly lead to the elimination of all vegetation from the lake for several years, and the potential negative effects of that condition on native fish populations would probably outweigh the positive effects, Thus, the task force concluded that a major program to eliminate hydrilla from Harris Lake should not be undertaken at this time. The Company has committed to chemically controlling hydrilla around the two public boat ramps to reduce the chance of it being transported on or in boats to other water bodies.
2.2 Terrestrial Monitoring Terrestrial monitoring is not required.
2.3 Noise Monitoring Noise monitoring is not required.
3.0 UNUSUAL OR IMPORTANTENVIRONMENTALEVENTS [EPP Section 4.1]
No occurrence of an unusual or important environmental event that would indicate or could result in a significant environmental impact causally related to plant operation occurred during the reporting period.
4.0 PLANT CONSISTENCY REQUIREMENTS [EPP Section 3.0]
4.1 Plant Design and Operation There were no changes in plant design or operation plans, and there were no tests or experiments performed which were considered to involve an unreviewed environmental question during the reporting period.
4.2 Reporting Related to the NPDES Permit Allrequired NPDES monitoring data were submitted to NCDEM via monthly discharge monitoring reports and separate correspondence as warranted.
0 5.0 PLANT REPORTING REQUIREMENTS [EPP Section 5.4]
5.1 EPP Noncompliances There were no EPP noncompliances identified during the reporting period.
5.2 Changes in Station Design There were no changes in plant design or operation plans, and there were no tests or experiments performed which involved a potentially significantunreviewed environmental question during the reporting period.
5.3 Nonroutine Reports There was one EPP nonroutine report submitted to the NRC during the reporting period.
A copy of the report to the NCDEM concerning the March 10, 1991, event discussed in Section 2.1.1 A. was transmitted to the NRC pursuant to Appendix B, Section 5.4.2 of the Hams Plant's operating license.
6.0 EPP AUDIT [EPP Section 5,1]
An audit conducted by an independent corporate entity was performed to ensure that the conditions and activities described in this annual environmentaloperating report were undertaken, .
fulfilled, and evaluated. The results of that audit are summarized in the attached statement.
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SUGARY AUDIT REPORT SHNPP Annual Environmental (Nonradiological) Operating Report Puz ose and Sco e An audit of the Sheazon Harris Nuclear Power Plant Unit 1 (SHNpp)
Annual Environmental {Nonradiological) Operating Report was performed for the period January 1, 1991, through December 31/
1991. The principal audit objective was to review the contzols and procedures that ensure SHNPP is in compliance with the reporting requirements to the U.S. Nuclear Regulatory Commission {NRC) established in Appendix B, the Environmental. Protection Plan (Nonradiological), of the SHNPP Facility Operating License No. NPF,-'3.
The scope of our work was limited to a review of the controls, procedures and supporting documentation related to the Annual Environmental {Nonzadiological) Operating Report and interviews with 'the appzopziate personnel.
Audit Results In.our opinion, based on the audit pzoceduzes performed, the Annual Environmental, (Nonzadiological) Operating Report is cozrect and complies with the NRC reporting recgxirements.
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.Gary P. 5azo Senior Audi John W. 6 ith izector Audit Projects Audit Services Department Carolina Powex & Light Company
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