ML20108C928

LGS Units 1 & 2 1995 Annual Environ Operating Rept (Non- Radiological) Jan-Dec 1995

ML20108C928
Person / Time
Site:	Limerick
Issue date:	12/31/1995
From:	Walter MacFarland PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9605070211
Download: ML20108C928 (10)

Text

{{#Wiki_filter:.- . ~ . .- + Walter G. MzcFarland, IV, P.E. Vice President a Limerok Generating Statbn v PECO NUCLEAR nco - c-e, PO Box 2300 A UNIT OF PECO ENERcv 19464-0920 aya Fax 610 718 3008 Pager 1800 672 2285 #8320 EPP 5.4.1 April 30,1996 Docket Nos. 50-352 50-353 License Nos. NPF-39 l NPF-85 i i Attn: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

Limerick Generating Station, Units 1 and 2 1995 Annual Environmental Operating Report (Non-Radiological) Gentlemen: Attached is the Limerick Generating Station, Units 1 and 2,1995 Annual Environmental Operating Report (Non-Radiological). This report is being submitted in accordance with Section 5.4.1 of Appendix B of the Facility Operating Licenses, Environmental Protection Plan (EPP) (Non-Radiological), and describes the implementation of the EPP for 1995. r if you have any questions, please do not hesitate to contact us. 1 Very truly yours, I .- M CC , YM.2 JfJ .- DBN:bdd Attachment cc: T. T. Martin, Administrator, Region I, USNRC l (w/ attachment) l N. S. Perry, USNRC Senior Resident inspecter, LGS (w/ attachment)

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1 LIMERICK GENERATING STATION UNITS 1 AND 2 l 1995 ANNUAL ENVIRONMENTAL OPERATING REPORT (NON-RADIOLOGICAL) JANUARY 1995 - DECEMBER 1995 I FACILITY OPERATING LICENSE NOS. NPF-39, NPF-85 DOCKET NOS. 50-352, 50-353 PECO ENERGY COMPAST

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l Limerick Generating Station j l 1995. Annual Environmental Operating Report ' j (Non-Radiological) 1~ Introduction This repon describes the implementation of the Environmental Protection Plan (EPP), . LGS Appendix B Technical Specifications, from January 1,1995 thmugh December  ! 31,1995. Provided herein are summaries and results of the envimnmental protection activities required by Subsection 4.2 of the EPP. 2.0 Environmental Protection Activities l 2.1 Aauatic Monitoring l l The Environmental Pmtection Plan states that the NRC will rely on decisions made by the Commonwealth of Pennsylvania, under the authority of the Clean Water Act, for any requirements for aquatic monitoring. Industrial waste NPDES Permit PA 0051926 pmvides the i mechanism for protecting water quality and indirectly aquatic biota. In accordance with the requirements of Section 3 of the Permit, , monitoring results were summarized for each month and reported on ! Discharge Monitoring reports (DMR) which were submitted to the DER and EPA. A summary of the results as reported in the monthly DMR's is In Table

1. In addition, studies of corbicula and Zebra mussels, fish impingement on the Schuylkill River intake screens, and water quality sampling and observations at Still Creek and Owl Creek Reservoirs were performed in support of LGS in 1995.

Periodic inspections of the Still Creek and Owl Cmek reservoirs and receiving streams revealed no sign of increased erosion, sedimentation, or other environmental damage. Spring, summer and fall surveys for the presence of zebra mussel were

conducted at several points along the Point Pleasant water diversion l route including the Delaware River at Point Pleasant, the intake on the Perkiomen Creek at Greaterford, and the two boat ramp locations on the Schuylkill; upstream near Limerick Island and downstream fmm the 1

Limerick Generating Station 1995 Annuar Environmental Operating Report (Non-Radiological) Cromby Generating Station. Concrete blocks were placed in the water at each location and later inspected for colonization. No zebra mussels wem found, although dense populations of Asiatic clams were observed on the Schuylkill as well as throughout the diversion system (including Bradshaw Reservoir and near the outfall stmeture on the East Branch Perkiomen Creek).  ! Fish tissue samples were collected as part of the Radiological i Environmental Monitoring Program biannually on the Schuylkill River, both upstream and downstream. These collections allowed for a I descriptive assessment of the fish community in the vicinity of , Limerick. Most common were spottail, spotfin, and common shiners, I carp, white sucker, redbreast and pumpkind sunfish, smallmouth and l largemouth bass, brown and yellow bullhead, and channel and white catfish. Both species of bass appeamd to be more common than previously observed as wem white and channel catfish. The species composition upstream and downstream of Limerick appeared to be similar. 2.2 Terrestrial Monitorine No terrestrial monitoring is mquired. I 2.3 Maintenance of Transmission Line Corridors Transmission line maintenance records concerning herbicide use are being maintained by the PECO Energy Company Consumer Energy Services Group - Power Delivery Division (Electric Transmission and Distribution Department). As required by the LGS Appendix B Technical Specifications, Section 4.2.3, these records can be made available to the NRC upon request. 2.4 Noise Monitorine All noise surveys required by the LGS Final Environmental Statement, Section 5.14.4, Atomic Safety Licensing Board (ASLB) mling LBP 2

Limerick Generating Station 1995 Annual Environmental Operating Report (Non-Radiological) 11, dated March 8,1983, and LGS Appendix B Technical J Specifications, Sections 2.3 and 4.2.4. were completed in 1990 for , Limerick Generating Station Unit 2 operation and Bradshaw Reservoir. l I These studies were reported on in the 1990 Annual Environmental Operating Report (Non-radiological). No further noise monitoring is required per LGS Appendix B Technical Specifications, Section 4.2.4.1. 2.5 Environmental Pmtection Plan There were no Envimnmental Protection Plan (EPP) non-compliances identified by the Nuclear Quality Assumnce Department or by Station Self-Assessment in 1995. 2.6 Changes in Station Desien or Operation. Tests or Experiments There were no changes in the Limerick Generating Station design or operation and performance of tests or experiments that required an Environmental Evaluation in accordance with the requirements of Section 3.1 of the Envimnmental Protection Plan. 2.7 Non-routine Reoorts Submitted 1 Two non-routine reports were submitted in accordance with EPP l Section 5.4.2. Copies of all letters were supplied to the NRC. l l

1. One NPDES violation for the release of total zine concentration in excess of the daily maximum limitation occurred on January 27,1995. With the unit 2 reactor shutdown for its third  !

refueling outage, Opemnons personnel commenced draining of the unit 2 circulating water system directly to the Possum Hollow Creek via the storm drain Outfall 005. Samples for zine prior to the discharge indicated levels were within acceptable limits. Mud and silt may have been piesent in the circulating water system drain piping between the water box and the isolation valve. Ieaching of zine from this mud and silt as well 3 4

Limerick Generating Station 1995 Annual Environmental Operating Report

(Non-Radiological) as the galvanized piping during periods of low flow may have contributed to the problem. A notification letter was sent on l Febmary 28,1995.

1 l l 2. One NPDES violation for Net Total Suspended Solids in excess ! of the maximum daily limit occurred on November 8,1995. , Composite samples for both the Discharge 001 (cooling tower l blowdown) and river water inpet (cooling tower makeup) were I analyzed for TSS and compared. The resulting net TSS value exceeded the maximum daily limit. On November 7,1995, excessive storm water mnoff caused a large increase in river water suspended solids. This caused the cooling tower makeup and blowdown TSS concentrations to also rapidly increase. The three (3) cooling tower makeup grab samples collected prior to l the storm were low in TSS. After averaging with the fourth l sample collected on November 8,1995, the TSS concentration of the composite sample was anificially low. As a result, the net TSS value obtained, after subtracting out this artificially low background value, was inappropriately high. A notification letter was sent on Febmary 28,1996. l f l 1 1 4

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       .            .                                             TABLE 1 1

i YEARLY MEAN AND RANGE OR MAXIMUM (AS APPROPRIATE) l l OF PARAMETERS REPORTED IN THE 1995 DISCHARGE l MONITORING EEPORTS

(Page 1 of 4) l l .

I  ! ! remer m oosme amenAnec poser n ==amom . l l \ PARAAKTHE est set oss ses eat oza f Aveenge Montidy Flow. MOD l Mesimum 9 85 0 2464 l 0.25 0 257 0.12 0 45 Mean 8 e4 0.1943 0.03 0 04 0 0101 0 04 Std Dev 0 84 0.0198 0 07 0 08 00331 0.12 Menemwn Daily Flow MGD Maximum 13.32 08294 0.25 0.31 0 12 0.7 Mean 11.42 0 4995 0 03 0 05 0 0101 0.00 Std Dev 0.73 0 0747 0 07 0.09 0 0331 0.19 Total suspended Solide, mg4 I Menimum 70.1 24 4 85.7 1230 18.8 1250 Meen 14.4 18 4 48.8 71.0 9.9 48 9 Std Dev 20 5 98 37.1 40 8 89 44.7 j Descheroe Temperstwo Degrees F Menwnurn 96 0 NR* 94 0 71.0 NR 81.0 Mean 82.8 NR 87.3 ES.7 NR 72.0 l Std Dev 8 37 NR S7 14.5 NR 56 l Total Residual Omidente. mg4 , 1 Mausmum 0 01 NR NR NR NR 0 l Moon 0 NR NR NR NR 0 l Std Dev 0 NR I NR NR NR 0 l l Zino, Totel, med Menimum 0 58 NR 0 34 88 NR 0 60 Meen 0.33 NR 0.33 3 73 NR 0.37 Std Dev O.1 NR 0 01 3.07 NR 0.11 ( Copper Total, mg4 Menunwn 0.1 NR 0 09 10.7 NR 0.01 Mean 0 07 NR 0 08 94 NR 0.08 Did Dev 0 01 NR 0 01 9.3 NR 0.03 l Inlet Temperstwo. Degeoes F Montm. en 33 0 NR NR NR NR NR Mean 83.7 NR NR NR NR NR l

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   .             .                                         TABLE 1 YEARLY MEAN AND RANGE OR MAXIMUM (AS APPROPRIATE)

OF PARAMETERS REPORTED IN THE 1995 DISCHARGE MONITORING REPORTS l (Page 2 of 4) 1 PEMNT PA 0061926 DISCHARGE PO5fT EBENCIO

• PARAANTER sei aos aos aos sai o23 I

Std Dev 14 6 NR NR NR NR NR ' 1 Hydrothal 191 mgA l I Meanwn 0 025 NR NR NR NR NR l Mean 0 03 NR NR NR NR NR Std Dev 0 NR NR NR NR NR Seta 3625.mgA j Menunum 0.28 NR NR NR NR NR Mean 0.1 NR NR NR NR NR Std Dev 0 08 NR NR NR NR NR Clemtrol. C7 1. mea Mem6 mum NR NR NR NR NR NR Mean NR NR NR NR NR NR Std Dev NR NR NR NR NR NR pH. Instantaneous Muumum i Mensmum S.1 NR S.2 0.32 8.38 8.16 Mean 7.94 NR 7.39 3 04 8.37 7.06 Std Dev 0.12 NR 0.31 0.21 0 01 0.16 pH. Mesimwn Daily j Mensmum 8 32 Nr. 3.2 8.2 S.38 8 32 Mean S.22 NR 7 89 7 09 3.37 8.22 Std Dev 0.1 NR 0 31 0.31 0 01 0 09 Phospho,ous se P. MG4 Menimwn 4 63 NR 0 73 1.08 1.22 2.79 Mesn 1 45 NR 0 88 0.71 1.08 1 01 Std Dov 1 03 NR 0 06 0 37 0.14 0 92 Iron. Diesolved. MG4 Mensmum NR NR NR NR 0 023 NR Mean NR NR NR NR 0 01 NR Sid Dev N9 NR NR NR 0 01 NR There were no discharges reported for 1935 from discharge point nurrders 101,301,020, 002, 003, 004, 005, 012, 022, 023, 006, 007, 008, 009, and O23 NR = Not Required

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      . . .                                        TABLE 1 YEARLY MEAN AND RANGE OR MAXIMUM (AS APPROPRIATE)

OF PARAMETERS REPORTED IN THE 1995 DISCHARGE MONITORING REPORTS (Page 3 of 4) enNT PA 0052221 DIBCDUAGE POSti WWWWeHAVW PARAAAETBt ooi Average MontNy Flow. MOD d Meannum 38.2 Meen 23 9 Std Dev 11.99 Mealmum Dedly Flow, MOD Menimwn 41.4 -{ Mean 29 5 I std Dev 12 D Dscharge Temperature. Dooroes F

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Mananwn 88 5 Mean 85.1 4 Std Dev 16.3 Zmo Total, med l Menimum S 89 ., Mean 31 Std Dev 04 pH. Instantaneous Muumwn Menemum 7.29 Mean a se 5td Dev 0.19 pH. Mensmum Detly Menimun S 69 Mean 3.10

Std Dev 04 homolved Onygen, mea

., Menunwn 7.82 Mean a 17 Std Dev 1.2 Alwnmum, Total, mea Menimwn 0.324 Mean 0.1

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     . e                                         TABLE 1 YEARLY MEAN AND RANGE OR MAXIMUM (AS APPROPRIATE)

OF PARAMETERS REPORTED IN THE 1995 DISCHARGE MONITORING REPORTS (Page 4 of 4) POWET PA 0052221 DIBCHARGE PO5fT INIAD8 HAW) PARARIETet so1 Etd Dev 0.08 Cadmium. Total, mea Maximisn 0 00002 Meen O Std Dev 0 tron. Total, mea Menunum 0.389 Mean 0 13 Std Dev 0.11 tron. Dissolved, mga Mealmum 0.081 Mean 0 05 Std Dev 0 01 Mercury. Total. med Meaunum 0 Mean 0 Std Dev 0 Mokel Total, mea Mem6 mum 0 002 Mean 0 Std Des 0 Fecal Caliform. #1100 mi Menimum 127 Meen 42 3 Std Dew 37.8 Ptenohce. Total 44AAP) Menemum 7.2s Meen 8 96 Std Dev 0.19 l}}