ML20216F337

Annual Environmental Operating Rept (Non-Radiological) for 970101-1231

ML20216F337
Person / Time
Site:	Limerick
Issue date:	12/31/1997
From:	Von Suskil J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
EPP-5.4.1, NUDOCS 9804170036
Download: ML20216F337 (9)

Text

Jamea D. von turkil

.. Vce President Limerck Generating Station PECO Energy Company A Unit of PECO Energy $gBoxi1 2300 Sanatoga. PA 19464 0920 610 718 3000 / Fax 610 718 3008 Pager 1800 672 2285 #0271 Intornet address: ivonsuskil@peco-energycom EPP 5.4.1 April 7, 1998 Docket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 Attn: Document Control Desk i U. S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

Limerick Generating Station, Units 1 and 2 1997 Annual Environmental Operating Report I

]

(Non-Radiological)

Gentlemen:

Attached is the Limerick Generating Station, Units 1 l

and 2, 1997 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 Plen (EPP) (Non-Radiological), and describes the imp.'.ementation of the EPP for 1997.

l If you have any questions, please do not hesitate to contact us.

I Ve.y truly yours,

., M &

l JDV:WRH:vc Attachment cc: H. J. Miller, Administrator, Region I, USNRC (w/ attachment)

A. Burritt, USNRC Senior Resident Inspector, LGS (w/ attachment) g

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LIMERICK GENERATING STATION UNITS 1 AND 2 1997 ANNUAL ENVIRONMENTAL OPERATING REPORT (NON-RADIOLOGICAL)

JANUARY 1997 - DECEMBER 1997 FACILITY OPERATING LICENSE NOS. NPF-39, NPF-85 DOCKET NOS. 50-352, 50-353

, PECO ENERGY COMPANY 1

1

• Limerick Generating Suition 1997 Annual Environmental Operating Report (Non-Radiological)

1. Introduction This repon describes the implementation of the Environmental Protection Plan (EPP),

LGS Appendix B Technical Specifications, from January 1,1997 through December 31, 1997.

Pmvided herein are summaries and results of the environmental protect. ion activities required by Subsection 4.2 of the EPP.

2.0 Environmental Protect 8on Activities 2.1 Aauatic Monitoring The Environmental Protection 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 provides the 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 reponed on Discharge Monitoring Repons (DhfR) which were submitted to the PaDEP and US EPA.

A summary of th esults as reponed in the monthly DMR's is presented in Table 1 for disonarge points at the Limerick Station and the Bradshaw Reservoir discharge to the East Branch Perkiomen Creek. In addition, studies of coibicula, Zebra mussels, and water quality sampling and observations at Still Creek and Owl Creek Reservoirs were performed in suppon of LGS in 1997.

Periodic inspections of the Still Creek and Owl Creek reservoirs and receiving streams revealed no sign ofincreased 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 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 from the Cromby Generating Station. Concrete blocks were placed in the water at each location and later inspected for colonization. No zebra mussels were found, although dense populations of Asiatic clams were observed on the Schuylkill as well as throughout the diversion system (including 1

Limerick Generating Station 1997 Annual Environmental Operating Report (Non Radiological)

Bradshaw Reservoir and near the outfall structure on the East Branch Perkiomen Creek).

Fish tissue samples were collected as part of the xadiological Environmental Monitoring Pmgram biannually on the Schuylkill River, both upstream and downstream. These collections allowed for a descriptive assessment of the fish community in the vicinity of Limerick.

Most common were spottail, spotfin, and common shiners, carp, white

. sucker, redbreast and pumpkinseed sunfish, smallmouth and largemouth bass, brown and yellow bullhead, and channel and white catfish. Both species oi'.nss appeared to be more common than previously observed as were white and channel catiish. The species composition upstream and downstream of Limerick appeared to be similar.

2.2 Terrestrial Monitorine No terrestrial monitoring is required.

2.3 Maintenance of Transmission Line Corridors Tmnsmission line maintenance records concerning herbicide use are being maintained by the PECO Energy Company Consumer Energy Services Gmup - 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) ruling LBP . 11, dated March 8,1983, and LGS Appendix B Technical Specifications, Sections 2.3 and 4.2.4. were completed in 1990 for Limerick Generating Station Unit 2 operation and Bradshaw Reservoir.

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.

l 2

Lhnerick Generating Station 1997 Annual Environmental Operating Report (Non Radiological) 2.5 Environmental Protection Plan There wem no Envimnmental Protection Plan (EPP) non-compliances identified by the Nuclear Quality Assurance Depanment or by Station Self-Assessment in 1997.

2.6 Channes in Station Design 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 Environmental Protection Plan.

2.7 Non-routine Reports Submitted Two non-routine repons containing thme incidences of non-compliance were submitted in accordance with EPP Section 5.4.2. Copies of all letters were supplied to the NRC.

1. On Febmary 28,1997, the Spray Pond flow integrator was identified to be malfunctioning and was declamd inoperable. A subsequent evaluation determined that it had been inopemble since January 7,1997. This instmment, required by Pan A of the permit, is used to measure the contribution of Spray Pond flow to the total integrated flow at Discharge 001. Once identified, an alternate method of flow determination was used.

Repairs wem completed on March 6,1997 when the instmment was declared operable. The malfunction was caused as a result of debris lodged within the instrument's flow pon. An Engineering Change Request (ECR) has been initiated for the design and installation of a semen at the Spray Pcad overflow weir to minimize debris entering the flow integrator. A

. notification letter was sent on March 27,1997.

2. On May 12,1997, the unit I cooling tower overflowed thereby mquiring sampling at Outfall 021. During the transfer of data from the chain of custody (COC) sheet to t!ie sample bottle label, the requirement to analyze for Kjeldahl nitrogen was omitted.

This event was determined to have been caused by personnel error. The NPDES Permit only requires this parameter to be monitored and reported with no limitation specified. A notification letter was sent on June 27,1997.

3

Limerick Generating Station 1997 Annual Environmental Operating Report (Non Radiological)

3. On May 21,1997, the net Total Suspended Solids (TSS) for the cooling towers was identified to be 82.3' ppm, thereby exceedmg the NPDES daily limit of 60 ppm. This elevated TSS reading also caused the monthly average of 30 ppm to be exceeded. This

' elevated TSS daily limit has two causal factors. The Schuylkill River TSS levels had recently spiked due to transient conditions related to storm run-off, resulting in unusually high turbidity in the cooling tower make up water. Also, the sample line had accumulated solids which were purged into the sample during its collection. Although nothing can prevent elevated TSS levels due to weather and river conditions, the sample tubing was replaced and will be changed out semi-annually. A notification letter was sent on June 27,1997, 4

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