ML12083A211

Summary of Telephone Conference Call Held on February 23, 2012 Between the U.S. Nuclear Regulatory Commission and Exelon Generating Company, LLC, Concerning Request for Additional Information Pertaining to the Limerickgenerating Station, Li

ML12083A211
Person / Time
Site:	Limerick
Issue date:	04/11/2012
From:	Leslie Perkins License Renewal Projects Branch 2
To:	Exelon Generation Co
Perkins L, 415-2375
References
Download: ML12083A211 (8)

Text

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LICENSEE: Exelon Generation Company, LLC FACILITY: Limerick Generating Station SUB,JECT:

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON FEBRUARY 23,2012, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND EXELON GENERATION COMPANY, LLC, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE LIMERICK GENERATING STATION, LICENSE RENEWAL APPLICATION The US. Nuclear Regulatory Commission (NRC or the staff) and representatives of Exelon Generation Company, LLC held a telephone conference call on February 23,2012, to discuss and clarify the staff's requests for additional information (RAls) concerning the Limerick Generating Station license renewal application. The telephone conference call was useful in clarifying the intent of the staff's RAls.

Enclosure 1 provides a listing of the participants and Enclosure 2 contains a listing of the RAls discussed with the applicant, including a brief description on the status of the items The applicant had an opportunity to comment on this summary.

Leslie Perkins, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-352 and 50-353 Enclosures.

As stated cc w/encls: Listserv

TELEPHONE CONFERENCE CALL LIMERICK GENERATING STATION LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS FEBRUARY 23,2012 PARTICIPANTS AFFILIATIONS Leslie Perkins U.S. Nuclear Regulatory Commission (NRC)

Michelle Moser NRC Briana Balsam NRC Kevin Folk NRC Ann Miracle Pacific Northwest National Laboratory (PNNL)

James Becker PNNL Nancy Ranek Exelon Generation Company, LLC. (Exelon)

Chris Wilson Exelon AI Fulvio Exelon Robert Tarr Exelon ENCLOSURE 1

REQUESTS FOR ADDITIONAL INFORMATION LICENSE RENEWAL APPLICATION FEBRUARY 23,2012 The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Exelon Generation Company, LLC (Exelon) held a telephone conference call on February 23,2012, to discuss and clarify the following requests for additional information (RAls) concerning the license renewal application (LRA).

Aquatic Ecology

1. Possum Hollow Creek is downstream of the Limerick Generating Station (LGS) power block. Provide any sampling or monitoring reports for aquatic species and benthos from Possum Hollow Creek.

2, LGS withdraws cooling water from the Schuylkill River at the Schuylkill River pumphouse, The through screen intake velocity can influence impingement rates. Describe the through screen intake velocity for the Schuylkill River pumphouse, Discussion: The applicant requested that the staff confirm that the staff was requesting a write-up of the verbal descriptions of screen intake velocity for the Schuylkill River, as provided by URS at the Surface Water Hydrology Interview during the environmental audit. The staff confirmed that they were requesting a write-up of the verbal description provided during the Environmental Audit.

3, Provide a description of screen clearing and maintenance activities and frequency at the Schuylkill Pumphouse, the Perkiomen Pumphouse, and Point Pleasant Pumping Station.

Discussion: The applicant stated the Exelon does not own or operate the Point Pleasant Pumping Station and does not conduct the activities of screen clearing and maintenance at that facility. The applicant requested that the NRC clarify that the staff expects Exelon to provide requested information for Point Pleasant Pumping Station. The staff understood that Exelon did not own or operate the Point Pleasant Pumping Station and clarified that the staff would like Exelon to provide requested information for Point Pleasant Pumping Station if the information is available. The staff agreed to revise the RAI for clarity. The RAI has been revised to read as follows:

Provide a description of screen clearing and maintenance activities and frequency at the Schuylkill Pumphouse and the Perkiomen Pumphouse, which are owned and operated by Exelon. If available, provide a description of the screen clearing and maintenance activities and frequency at the Point Pleasant Pumping Station, which is not owned by Exelon.

4. Zebra mussels are a non-native species that may occur within the waterbodies from which LGS withdraws. Describe zebra mussel monitoring and survey efforts, and discuss whether LGS staff has identified zebra mussels in any of the water bodies associated with the makeup water system of LGS.

Discussion: The applicant did not have any questions regarding Items 1 and 4.

ENCLOSURE 2

References Requested for Docketing at the Limerick Generating Station Environmental Site Audit November 7-10, 2011

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~ ~ ~ Meteorology and Air Quality m m m m _ _ _--/

fA Title V Operating Permit, TVOP-46-00038, Issued December 7,2009 and Revised

~ February 17, 2019._ __

lB. Title V Compliance Certification RE?ports (2006-2010) mm _________

~ ____ ~ ~~~~~~~~~___ Aq uatic Ecology ~ ~ ~ mm" A. NAI (Normandeau Associates, Inc.). 2010a. East Branch Perkiomen Creek Aquatic Biology Assessment XIII, 2008 Monitoring Period. Prepared for Exelon Nuclear, Limerick Generating

______S!§.~.QD.~ay .____ . _~ _ _ .

• B. NAI (Normandeau Associates, Inc.). 2010b. East Branch Perkiomen Creek Aquatic Biology Assessment XIV, 2009 Monitoring Period. Prepared for Exelon Nuclear, Limerick Generating Station.

C. NAI (Normandeau Associates, Inc.). 2010c. Fish and Benthic Macroinvertebrate Community Composition in the Schuylkill River in the Vicinity of Limerick Generating Station During NAI (Normandeau Associates, Inc.). 2010d. Letter from Normandeau Associates, Inc. to Exelon Nuclear via email. Zebra mussel/Asiatic clam Survey. November. PECO (Philadelphia Electric Company). 1984. Environmental Report - Operating License Stage.

Limerick Generating Station Units 1&2. 5 vols.

E. RMC (RMC Environmental Services). 1984. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1979-1983. Prepared for Philadelphia Elect~ic Company. 9...cc,--to_b.:..e:...r_.____~~~~_

• F. RMC (RMC Environmental Services). 1985. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1984. Prepared for Philadelphia mJ~le~!ric ~2..n:!l2§'Qy:J2me(:;~rn..bE?r. _

G. RMC (RMC Environmental Services). 1986. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1985. Prepared for Philadelphia

_.__ Electric

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H. RMC (RMC Environmental Services). 1987. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1986. Prepared for Philadelphia Electric Company. November. ________.. . . . _~_m_~_

L RMC (RMC Environmental Services). 1988. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1987. Prepared for Philadelphia r __ . ---=Ec-c'~tric Company. September. _ _ _ _..._

J. RMC (RMC Environmental Services). 1989. Progress Report, Non-Radiological Environmental Monitoring for Limerick Generating Station 1988. Prepared for Philadelphia Electric

• December .

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K. Describe any aquatic surveys conducted at the Bradshaw Reservoir, the Wadesville Mine Pool and discharge channel, Bedminster Water ProceSSing Facility, and the Still Creek I

Reservoir. For example, submit for docketing the response to information need (AQ-2 from the Audit Information 1\.1;:>,::>,,<:::

L. Describe the frequency that water is withdrawn from the Schuylkill River compared to other sources. For example, submit for docketing the response to information need (AQ-3 from the Audit Information Needs.

I M. Describe the intake velocity, traveling screens, and any other operational procedures or structural designs that limits impingement and entrainment at the Point Pleasant Pumping l ____ Station on the [?ela\l'y'§lre giver QI'~ at the PLJmping stations on the Bradshaw Reservoir,S_t_il_1__

ENCLOSURE 2

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Creek Reservoir, or Wadesville Mine Pool. For example, submit for docketing the response to information need from the Audit N. Describe any impingement or entrainment conducted at the Pumphouse, Perkiomen Pumphouse, or at the intakes on the Delaware River. For example, submit for f--~d~o-,c_kE?!ing the response to information need (AQ-6 from the Audit Information Needs). mm _ _ '

O. Describe the extent of a thermal plume as a result of discharges to the Schuykill River. For example, submit for docketing the response to information need (AQ-7 from the Audit P. In the ER, stated that three species of concern were identified in the Pennsylvania Natural Diversity Index (PNDI) search for LGS license renewal. However, it was unclear which three species LGS identified and where the species would occur on the LGS site and at the Bradshaw Reservoir. Please state these species (AQ-8 from the Audit Information Q. In addition, discuss the potential location the PNDI species concern on the LGS site and at the Bradshaw Reservoir and Pumphouse, as discussed on Page 2-44 of the ER

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I A Submit the last 5-years of monthly records for site groundwater production at all four site supply wells with outage periods identified.

2006 H dro eolo ic Investi ations Re ort.

Provide a summary of the results of groundwater monitoring performed for tritium, strontium 90, and gamma-emitting radionuclides since 2006 (i.e., groundwater protection program NPDES permit renewal application for PA0051926 (minus Appendix A and B) and the administrative letter received from PA DEP.

and Cultural Resources A Submit the references called out in Section 2.10 of the ER for archaeological surveys and the architectural and historical analYSis of the Fricks Lock Historic District (CR-2 from the Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information, do

__~ncluge maps or coordin~tes of site 10cationil'1formation._._~ ___

B. Submit the 1983 letter from the SHPO/PHMC. This letter contains the SHPO findings regarding the determination of impacts to cultural resources from construction and operation of T-lines (CR-3 from the Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural

. resources inform?tion, do not include maps orc:;oordinates of site locationinformation. _ _

C. Submit the list and description of the type of cultural resources that occur on the LGS site as a result of the CRGIS query (CR-4 from the Audit Information Needs). Docketing should follow guidelines from NRC regarding sensitive cultural resources location information.

When submitting cultural resources information, do not include maps or coordinates of site location information.

D. Submit a summary of the cultural resources management plan to NRC. This summary should contain the table of contents, a brief overview, and a description of how and when the management plan will be implemented (CR-7 from the Audit Information Needs).

Docketing should follow guidelines from NRC regarding sensitive cultural resources location information. When submitting cultural resources information, do not include maps or coordinates of site location information.

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• _ _ _ . ._ _ _ _ _ _ _ _ _ _ _ m m _ _ _ _. ._ _ . ._ _ __________ ~ _ _ _ _ _ _ _ _. . . . ._ . ____ *

- 3 Terrestrial A. Biodiversity Evaluation of Possum Hollow Run (completed under the direction of Exelon's B.

C. Exelon. 1979-1983. Limerick Generating Station Non-radiological Environmental

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D. Exelon. 1984. Limerick Generating Station Non-radiological Environmental 1985. Limerick Generating Station Non-radiological Environmental F. 1986. Limerick Generating Station Non-radiological Environmental G. Exelon Generation. 2010. Limerick Generating Station Wildlife Management 086.

H. Wildlife Habitat Council (WHC). 2006. Site Assessment and Wildlife Management o ortunities. 100 pp. LGS-R-278.

In relation to reference WHC (2006) above, please provide the following for the indicated Wildlife at Work Projects:

a. Bird and bat project summary sheets, including location maps, data sheets, and notes

b. Frog project summary sheet

c. Documented Environmental Evaluation Walkdown/Assessment (for frog fence

___. __~._.. replacemenJl(Report AR 01183~9_9..L)~~__~~

.l* J. Submit for docketing the text responses to site audit information needs TE-1, TE-2, TE-3, TE-4, TE-6, TE-7, TE-8, and TE-9. These information needs can be found in NRC's

_~_gIlIJJrgnmental AudiL~-Je_~c!§ List dated Noverl1~~.!_:tL~QJJJ_M!:-Jl~86~3}QL Discussion: The applicant requested that the NRC confirm that, for Hydrology Item D in the table of request for documents, the staff is requesting Exelon to provide the LGS National Pollutant Discharge Elimination System (NPDES) permit renewal application with a copy of Appendix C but not copies of Appendixes A and B. The staff clarified that Exelon does not need to provide a copy of Appendix A, B, or C. The Hydrology Item D in the table of requested documents (reproduced above) has been revised to read as follows:

NPDES permit renewal application for PA0051926 (minus Appendices A, B, and C) and the administrative completeness letter received for PA DEP.

Discussion: The applicant requested that the NRC clarify whether the staff is requesting only excerpts provided at the audit, or the entire reports for Terrestrial Ecology Items C, D, E, and F in the table of requested documents (reproduced above). The staff clarified that only the excerpts provided at the audit are being requested.

April 11, 2012 LICENSEE: Exelon Generation Company, LLC FACILITY: Limerick Generating Station SUB~IECT:

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON FEBRUARY 23, 2012, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND EXELON GENERATION COMPANY, LLC, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE LlIVIERICK GENERATING STATION, LICENSE RENEWAL APPLICATION The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Exelon Generation Company, LLC held a telephone conference call on February 23, 2012, to discuss and clarify the staff's requests for additional information (RAls) concerning the Limerick Generating Station license renewal application. The telephone conference call was useful in clarifying the intent of the staff's RAls. provides a listing of the participants and Enclosure 2 contains a listing of the RAls discussed with the applicant, including a brief description on the status of the items.

The applicant had an opportunity to comment on this summary.

IRA!

Leslie Perkins, Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-352 and 50-353

Enclosures:

As stated cc w/encls: Listserv DISTRIBUTION: See next page ADAMS Accession No.: ML12083A211 *concurred via email R* PM:RPB2:DLR 2:DLR PM:RPB2:DLR NAME IKing LPerkins LPerkins DATE 4/4/12 4/10/12 4/10/12 4/11/12 OFFICIAL RECORD COpy

Memorandum to Exelon Generation Company, LLC, From L, Perkins dated April 11, 2012

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON FEBRUARY 23,2012, BETWEEN THE U,S. NUCLEAR REGULATORY COMMISSION AND EXELON GENERATION COMPANY, LLC, CONCERNING REQUESTS FOR ADDITIONAL INFORMATION PERTAINING TO THE LIMERICK GENERATING STATION, LICENSE RENEWAL APPLICATION DISTRIBUTION:

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