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 FACIL:50-400 Shearon Harris Nuclear Power Plant, Unit 1, Carolina 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.
RECXP.NAME RECIPIENT AFFILIATION DOCKET 05000400 R
SUBJECT:
"Shearon Harris Nuclear Power Plant Unit (Nonradiological)
Operating Rept,199 9
DISTRIBUTION CODE:
IE25D COPIES RECEIVED:LTR ENCL J TITLE: Environmental Monitoring Rept (per Tech Specs)
NOTES:Application for permit renewal filed.
al Environ r.
SIZE:
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05000400 A
INTERNAL:
RECIPIENT ID CODE/NAME PD2-1 LA MOZAFARI,B.
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1 RECIPIENT ID CODE/NAME PD2-1 PD NRR/DREP/PRPBll RGN2 DRSS/RPB COPIES LTTR ENCL 1
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NOTE TO ALL"RIDS" RECIPIENTS:
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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, MGW:dmw Enclosure G.
E. Vaughn Vice President Harris Nuclear Project cc:
Mr. S.
D. Ebneter (NRC-RII)
Mr. J.
E. Tedrow (NRC-SHNPP)
MEM/HO-920083/1/OS1
(
'7204280389 9ii23i PDR ADOCK 05000400 R
v 7
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SHEARON HARRIS NUCLEARPOWER PLANT UNIT 1 ANNUALENVIRONMENTAL (NONRADIOLOGICAL)
OPERATING REPORT for January 1, 1991-December 31, 1991 CAROLINAPOWER &LIGHTCOMPANY Docket No. 50-400 Facility Operating License No. NPF-63
1.0 INTRODUCTION
Carolina Power &,LightCompany (CP&L)received a low-power Facility Operating License (No. NPF-53) and a full-powerFacilityOperating License (No. NPF-63) forthe 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 ofJanuary 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 ineffect formost of 1991. Under the authority ofthe Clean Water Act, the state of North Carolina renewed the NPDES permit, effective November 1, 1991, which willremain ineffect untilMarch 31, 1996. This renewed permit reflected areclassification ofthe 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 inthe process ofbecoming certified. Also, as a consequence ofbecoming a Class IIIfacility,the sampling frequency forthe analysis ofBiological Oxygen Demand (BOD), Total Suspended Solids (TSS), and fecal coliformofthe 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 followingis a summary ofNPDES 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 ofraw 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 April29, 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 ofApril29, 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 oflowblowdown on April29 and 30, the sample taken on April30 was also out ofcompliance at 1.06 mg/liter. As a result, the monthly average limitforzinc 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. Anypotential toxicitywas precluded by the lake recirculation flow of approximately 4,000-6,000 gallons/minute for radiological waste dilution.
The source ofthis 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 ofcompliance for5-day BOD on July 17, 1991. Itis believed that this composite sample was inadvertently contaminated based upon (1) the TSS and fecal coliform results for July 17, 1991, were wellwithinspecification; (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 ofcompliance for the length of time ofchlorine release.
The time ofchlorine 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 fromrecurring, the faultychemical 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. Allnoncompliances 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 ofOctober 1, 1991, itwas determined that the major concentrations ofAsiatic clams Corbicula fluminea were stillin the vicinityofthe two public boat ramps. Observations also indicated that the clams have continued to spread slowly throughout Harris Lake. Three Asiaticclams were collected at the mouth ofthe 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. Monitoringforthe 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 ofthe lake except forthe Buckhorn Creek arm (the southernmost). The total areal coverage was estimated to be approximately 1050 acres. Hydrillawas not observed growing inthe auxiliaryreservoir. No impacts to Harris Plantoperations have occurred nor are they expected because ofthe lowvelocity ofwater drawn into the cooling tower makeup water intake structure. Inthe spring of 1991, Company biologists met withmembers 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 ifhydrilla needs to be eliminated from Harris Lake, stocking grass carp would probably be the method ofchoice, That would possibly lead to the elimination of all vegetation from the lake forseveral 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 ofitbeing 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 UNUSUALOR 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 PLANTCONSISTENCY 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.
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5.0 PLANTREPORTING 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.
Acopy 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 ofthe 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 inthis 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.
Q/u<
.Gary P. 5azo Senior Audi John W. 6 ith izector Audit Projects Audit Services Department Carolina Powex
& Light Company
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