ML11256A192

Renewal of Operating Licenses for Limerick Generating Station, Units 1 and 2 Request for Information on Listed Threatened and Endangered Species

ML11256A192
Person / Time
Site:	Limerick
Issue date:	01/19/2011
From:	Gallagher M Exelon Generation Co, Exelon Nuclear
To:	Firestone C State of PA, Dept of Conservation and Natural Resources, Division of License Renewal
Regner L
Shared Package
ML11256A185	List: ML11256A192
References
Download: ML11256A192 (40)

Text

Michael I? Gallagher, PE Seiepbore 61a 76 j 5958

' J ~ c e i'-ci-rde-i.t wtrb"d\\i\\iexcloqioi i? COr2 Nuclear

! liense Renewal Cre,~rts r~~cna.-\\p g;;lla~'ne:@.-xe~oi.C~i3 Exe c.r Yuriear zoo Exeir,n '&;;3y ni>/>-F tiecnetr ic;nare, P;i 193~8 January 19,201 1 Ms. Chris Firestone Pennsylvania Department of Conservation & Natural Resources Bureau of Forestry - Plant Program Forest Advisory Services P.O. Box 8552 Harrisburg, PA 171 05-1 673 Re:

Renewal of Operating Licenses for Limerick Generating Station, Units 1 and 2 Request for Information on Listed Threatened and Endangered Species

Dear Ms. Firestone:

In mid-201 1, Exelon Generation Company, LLC (Exelon Generation; a subsidiary of Exelon Corporation) plans to apply to the U.S. Nuclear Regulatory Commission (NRC) for renewal of the operating licenses for Limerick Generating Station, Units 1 and 2 (LGS). The existing license for Unit 1 will expire on October 26, 2024 and the existing license for Unit 2 will expire on June 22,2029. The renewal term for each unit would be an additional twenty years beyond the existing license expiration date.

The NRC requires that license renewal applications include environmental reports assessing potential environmental impacts from license renewal activities. One such impact would be effects of license renewal activities on threatened and endangered species that are listed or proposed for listing in accordance with the Endangered Species Act (ESA) (16 USC 1531, et seq.) (10 CFR 51.53(~)(3)(ii)(E)). Accordingly, we are contacting you to obtain input for use in addressing these effects in the LGS license renewal environmental report. Later, NRC may also request an informal consultation with your office consistent with Section 7 of the ESA (16 USC 1536(a)).

Project Features LGS existing features that are relevant to the effects of license renewal on threatened and endangered species include the following:

Ms. Chris Firestone January 19,201 1 Page 2 of 4 I. The LGS plant site, which hosts the two generating units, is located on Exelon Generation-owned properties that are mostly situated in Limerick Township, Montgomery County, but some of which are in the adjacent Lower Pottsgrove Township, Montgomery County or directly across the Schuylkill River in East Coventry Township, Chester County.

2. The LGS makeup water supply system, which conveys water from approved sources to LGS for use in its circulating water system, is composed of the following components:

o The Perkiomen Pumphouse, located in Graterford Township, Montgomery County, and an associated underground 7.6-mile long Perkiomen Pumphouse-to-LGS pipeline; both are located along an easement held by Exelon Generation within an electrical transmission line right-of-way (ROW) controlled by PECO, a subsidiary of Exelon Corporation; o The Bradshaw Reservoir and Bradshaw Pumphouse, which are both situated in Plumstead Township, Bucks County, on Exelon Generation-owned properties totaling 42 acres; o The Bedminster Water Processing Facility, which is situated in Bedminster Township, Bucks County, on a 3-acre Exelon Generation-owned property; and o An underground water transmission main, which is routed within a natural gas pipeline ROW along an easement held by Exelon Generation that runs from the Bradshaw Pumphouse to the East Branch Perkiomen Creek by way of the Bedminster Facility.

The buried Perkiomen Pumphouse-to-LGS water pipeline and the underground water transmission main are located below ground within ROWs that exist for other purposes, and their operation requires no independent vegetation management or ground disturbing activities along these ROWs. Hence, these underground components of the makeup water supply system are assumed to have no effects on threatened and endangered plant species.

3. The LGS transmission system is composed of the following components:

o Two electrical transmission lines constructed to connect the LGS main power transformers with two onsite electrical substations (these components are located on the LGS plant site); and o Four 230-kilovolt (kV) and one 500-kV electrical transmission lines, with associated structures and offsite electrical substations, constructed to connect the onsite electrical substations to the regional electricity grid.

All offsite substations and transmission lines are operated by PECO and are located in ROWs situated in Montgomery and Chester Counties either on PECO-owned properties or on properties for which PECO holds permits, grants, easements, or licenses. Onsite transmission lines traverse only land that was disturbed during initial station construction.

Figures 1 through 9 showing the locations of the existing LGS project features are provided in.

Ms. Chris Firestone January 19, 201 1 Page 3 of 4 Activities During the License Renewal Terms LGS license renewal will involve no new construction, refurbishment, ground disturbing activities, changes to operations, or changes to existing land-use conditions. Operation and maintenance activities during the terms of the renewed LGS licenses are only expected to occur in previously disturbed areas or existing ROWs. Hence, no new adverse impacts to threatened and endangered plant species are anticipated from license renewal.

Identification of Threatened and Endangered Species Resources Using the Pennsylvania Natural Diversity Inventory (PNDI) Environmental Review Tool, a web-based application sponsored by the Pennsylvania Natural Heritage Program (PNHP), Exelon Generation has reviewed the potential for the LGS plant site area and the properties associated with the LGS makeup water supply system to adversely affect known occurrences of species or natural communities of concern. Receipts for PNDl search #s 20100421240174 (LGS plant site), 201 00421 2401 63 (Perkiomen Pumphouse area), 201 00406237563 (Bradshaw Reservoir and Pumphouse area), and 20100407237630 (Bedminster Water Processing Facility area) are attached (Attachment 1). One "Special Concern Species" was identified for the LGS plant site:

tooth-cup (Rotala ramosior). The responses for the other project sites stated that no impact is anticipated to threatened and endangered species andlor special concern species or resources.

Given the sizable acreage and distances associated with the LGS transmission line corridors, no PNDl searches were conducted for this project component. For review by your office in identifying species of concern, we instead offer the figures in Attachment 3 showing the routes and widths of the corridors.

A review of the PNHP web site for state-listed endangered and threatened species indicates that numerous state-listed plant species could occur in Montgomery, Chester, and Bucks Counties. The enclosed Attachment 2 contains a list of these species. One perennial orchid species, the small whorled pogonia (lsotria medeoloides), state-listed as endangered, with Chester County as its recorded location, also is federally-listed as threatened. Although the American Holly (Ilex opaca), which is state-listed as threatened, was observed on the LGS plant site in 1978, Exelon Generation is not aware of the recent presence of any state-listed plant species on or near the properties associated with LGS and its associated transmission lines.

Also, Exelon Generation and PECO adhere to regulatory requirements regarding sensitive areas that could contain state-listed threatened and endangered plant species and work closely with your department to protect these resources.

Because license renewal involves no new construction, refurbishment, ground disturbing activities, changes to operation, or changes to existing land use conditions, Exelon Generation does not expect LGS license renewal to adversely affect threatened and endangered plant species located near the LGS plant site, makeup water supply system, or transmission system ROWs. Nevertheless, we are requesting your help to identify issues we may have overlooked that need to be addressed in the LGS license renewal environmental report. We are also interested in learning of any information your staff believes could help expedite the NRC's review of the LGS license renewal application. Hence, in closing, we would appreciate receiving a response from you detailing such issues and information for the LGS plant site, makeup water supply system and transmission system. We would also welcome your confirmation of our conclusion that LGS license renewal would not adversely affect threatened and endangered plant species.

Ms. Chris Firestone January 19, 201 1 Page 4 of 4 Because we plan to incorporate a copy of your response, as well as this letter, into the LGS license renewal environmental report that will be submitted to the NRC as part of the LGS license renewal application, your response will be most helpful if we receive it by March 10, 201 1.

Please call Nancy Ranek (610-765-5369), our License Renewal Environmental Lead, if there are questions or you require additional information.

Michael P. Gallagher

Enclosures:

Receipts for PNDI Search #s 201 004212401 74,20100421240163, 20100406237563,and20100407237630 :

Threatened and Endangered Plant Species that could occur in Montgomery, Chester, and Bucks Counties :

Figures Depicting LGS Project Features (Figures 1 through 9)

Ms. Chris Firestone January 19,201 1 Page 1 of 19 ATTACHMENT 1 Receipts for PNDI Searchs Receipt for PNDf Search ## 201 00421 2401 74, Limerick GS............................... 2 Receipt for PNDt Search # 20100421 240163, Perkiomen Pumphouse............... 7 Receipt for PNDl Search # 20100406237563, Bradshaw pump...................... 11 Receipt for PNDI Search ## 201 00407237630, Bedminster WPF...................... 1 6

Ms. Chris Firestone January 19, 201 1 Page 2 of 19

1. PROJECT le)FOC4MlWN fvqja Nems: L h

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i9olggrrpua Quad-Nam: WEN1XMeLIE - ZIP M e : 194165,1W$4 a

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2. SEARCH RESULTS PA -t d

PoqwrtW Lnplet FU-H E W CEL REUUIRED, b e and NeturPll Regwrcas A~~

PA FW art Boat CwmWon PsdenWrJ L n p d FURTHER RnnEW IS REWIRED, h

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Ms. Chris Firestone January 19, 201 1 Page 3 of 19

Ms. Chris Firestone January 19, 201 1 Page 4 of 19 hjeaf gnvirammd Rwlew Rmeipt h

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20lW2 12NI 74-

Ms. Chris Firestone January 19,201 1 Page 5 of 19

Ms. Chris Firestone January 19,201 1 Page 6 of 19

Ms. Chris Firestone January 19,201 1 Page 7 of 19 PNDI Froject Environmental Review Receipt Project Search ID:

20100421240163

1. PROJECT INFORMATIOM Project Name: P d c i o m Pumphouse Date of review: 4121 1201 0 4:16:12 PM Prcj~ect Category: Energy Storage, Production, and Transfer,Energy Production (genetatlorr),Nuclear Pollrrer Plant - maintenance, modification, or expansion Project Area: 3.5 acses County: Montgomery TownshfpNunicipallty: Prrrkiomen Quadrangle Name: COLLEGEVlLLE - ZIP Code: 19426 Decimal Degrees: 40.215611 N, -75.451022 W Degrees Minutes Seconds: 40' 12 56.2" N. -75O 2T 3.7" W I

2. SEARCH RESULTS Agency Results

Response

PA Game Commission No Known lmpad No Further Review Required PA Department of CoIISCM'VM No Known tmpact No Further Review Required and Natural Resources PA Fish and Boat Commission No Known lmpad No Further Review Required U.S. Fish and Wildlife Service No Known Impact NO Further Review Required As sumarized abwe, Pennsylvania Neturaf 0-Inventory (PNDI) recorekr indicatt, MI krrown knpacb to thwtened and 6ndang)ered sped-endlor special wrpcem spedes and m t c l b s wltM ttw project area.

' h m f b, basad on ttre lnformetlon you prwlded, no f u h r mrdlmtion b mquW wittr the jwr#jictlarral sgsndes. Thb rebponlre tkes rot refled potential agsncy a#lcems regarding impacts to other e&ogkaJ rwourws, suctr as Wands.

Ms. Chris Firestone Attachment I January 19, 201 1 Page 8 of 19 PNDI Project, Environmenaf Review Rweipt Project Sewcfi If): 20 100.42 1240 163 Note th&t etngardbm of PNBI warm mufts, pfQjw q u l r ( ~ ~ g 8 G h m r t 05 DEP ilXfiVIwl permit or GP 5,6, R, tahbh, Mwm, &nti;/omq, NMmpm, SdtuylMIl and Yo&) must mrply wth the bclg turtlt, hwmt s c r a c i n l ~ w u i r a m b of the PMPGP.

3. AGENCY COMMENTS f hem wanw i m M s and mspans (from the date of the rrPviwf, and are b a d an ttws project infmatlan Ulat was ptsvidatd, and fwtums; and any mmw tct quWm to tfFe quastiafls rnat were asked during tht3 online ntuiw, tb must be sesW again via the FNDl EnGmnoen%l F?evk?w Tml and m & m M to the juedictiona8 a$eder;. The PNDI toDT is a pdmry scrwntng taol, and a desictdp mviw rnay m m I mors ar bwer impacts than what lo listed on &is PNDl remipi.

PA Game Csmmlssierr RESPONSE: No Impad k ana2cipatrwJ to trweatrrned a& wrdanwrard spw385t an-spsdsl mmn PA Dgpartmentr of Consewation and Natural Reaourcss RESPONSE: NO [ m e t is anticiww tc~ tt~

SWBB 8 d r e m m.

PA Fish and Boat CommCsrslsn RESPONSE: ~o impact ia m ~ p a t ~

to species and resour=,

U.S. Fish and WildlWe Sswlce RESPONSE: NO immcts to i~sted or species are a~cipatr~d, em, no kr*m is required.

no tak mtildpatrtd, none u ~ U W Z W. TR~S responm does no8 Po&

and W tlta Fish and WMIZte Coordirxfltian Act or other tit%&

4. OEP CNFORMATW PIie PEI Bemfimnt d Envlros~msntal Prabdon (DEF) muires thef a &grid cspy of Ulls rm&pt, slang with any required h u m m W n h jctPiMW~l age amlMorts for pntllts quid* WQt rwiw.

ses *re a "fsoterrtlcl Imp&" to h a t e n d and s and r(;rkmms has Wm idmltsd befm appttGaticsn b e been pMJb

Ms. Chris Firestone January 19, 201 1 Page 9 of 19 PND1 Project Enviroment,a1 Review Receipt Prrtject: Search ID: 201 00421 240163 should titt whined to DEQ ahng writh the, PNDl m l p t a compiiet& WDI farm isnd a US GS 7.5 minute quaawle map with the prqm b~undarisg cktLin%aW on the map' The PNDI R d p t ab to the amowate agency accon;ffng to dlrdons on the PNOI Receipt. DEP and the ju pact(s). See the DEQ PFUDI paicy 1

Ms. Chris Firestone January 19, 201 1 Page 10 of 19 PNDl Project Enviranmerrtat Review Receipt Projst Search D:

20 f 0042 1240 16 3 5.1Q&DtPlONAt INFORMA7"[8N The PMDl enviconmtal review w e

• is a plimlnbtry m & n g i d. There art, oRen &days in updMf~g unel the PNOI En\\timm&l R w h T d on& m

6. AGENCY CONTACT JMF0RWTI0N PA bepartme& af Conaszawalfon and U.S. Fjsh and Wildl W Service HaWmI on Bureau af ogical Swims SecNon 3

itr, 322, Slate Welfe, PA 400 Ma&et Street, PO Box 8552, Hdnisburg, PA 1 t 71 05.8fi52 W Fax@ Please.

Fax:(fl7) 7724273 PA Fbh and Semi Gommfssisian PA Game CZommtssim Division of Envi 450 son Lane, blMonte, PA. 1W3-7437 DM Haitat Protem NO me9ss Fwf717) 7874957

7. PROJECT CONTACT INFORMATION 8, CERTtFICATICN I ~ r t i f y that AM d Ule project idomawn maid in this ~14cc)ipt (iMuding mjwt locam, project sizsl'ccMgum~an, prtrjeet egis, answers; fo qoestim) ts true, and comple&. ln addiBm, I the p7qject Page 4 at 4

Ms. Chris Firestone January 19, 201 1 Page 11 of 19 PNDI Project Environmental Review Receipt Project Search ID: 20100406237563 I. PROJECT INFORMATION Project Name: Bradshawgump Date of review: ygt2016 3:53:37 PM Project Category: Energy Stwage, ProductJon, and Trarufar,Enew Production (gsneratfon),Nudear Pcnrvsr Plant - maintanan-, moMmthn, or expansion Project Area: 36.5 acres County: Buck TownshiplMunidpolllty: Plumstead Quadrangle Plerme: LUMBERVlLLE - ZIP Code: 18987,18901 Decimal Degrees: 40.397483 N, -75.093140 W C

2. SEARCH RESULTS Agency Results

Response

PA Game Commission No Known Impad No Further Review Required PA Department of C=onservatkM No Known Impact No Fwther Review Required and Natumi Rescw#s PA Fish and Boat Commission Potentla1 Impact FURTHER REVIEW IS REQUIRED, See Agency Respan..

U.S. Fish and Wildiife Service No Krtbwn Impact No Fwther Review Required

• . s m r i z a d aim+.

NM inventory (PNDI) recarcis h e n m y potent*^

impads to threatened wd endangered wdlw spcM concern speck and rsswrcc#r withkt the pYlje4t arm. If the mpmw ebve indicates 'No Further Rwkw Requited' m addttkn;at communication with the rwpeche agency r rsqubtad. H the respewrae is 'Further R e W Required" or %

Age#rcy Rmpome," mdw to the apOraOrIste a$ency comment3 below. Plaase see the DEP Infomtetlon Sedfon of thtrr mcrdpt if a PA bsperknent of EnvimnrnN Protection Pemdt is required.

Page 1 of5

Ms. Chris Firestone Attachment I January 19, 201 1 Page 12 of 19 PNDI hoject E~viromen&l Review Receipt:

Project Seareh ID: 201041406237563 RESPONSE TO QUESTION(S) ASKED Q4 :

y describe what is n about wrstknd p m n m In the p m i e area ar ~1 Me land pared.

• Fwd inWw isl? feWz&5 of We p m j e (inckrding buildings, rmds, utility Irnss, ouffgti a& h abr mtcbnt'Wdeterrtlon ba

), as we31 as all rms subject to

. !Mud61 all ams that wll any type of disturb h

~

d plld =

lol(s)

Your anwar Is: 2, bPthn fllv~btCat~d by so q u r l W t-o Idente fy ddalmta! w**,

or It I fftb p&etor)WQlgp;f e9 wlit nffad wtlands.

3. AGENCY COMMENTS PA Game Cammission RESPOWSE: NO t m w ts antidpaw to threatend ertd e a n g w d PA Derparlment of Congsnratlon and Natural Resources RESPONSE: NO tmpact is anticip~ted to thmwnatl and ~ndmwretd species an&or rn m i e s and resottrms.

PA Fish and Baal Commission Page 2 of 5

Ms. Chris Firestone January 19, 201 1 Page 13 of 19 237563 PFllrC s~.t-tscom:

ScEenmc Ham: ansitive Spcies""

Cmman Wms:

Cumnt Sbtus: Threatened Proposed 8btus: Special Conmm Spades*

ial i d mfwm*n to this wan* fcK rcvicw (w WHAT Ti3 SEFJE)),

U.S. Fish and Wildlife Service RESPONSE: ~a imaclta i5 ar props& smw am r n ~ d ~ ~.

~hmfars, no further uita%nlmrdination undw red Spwiw Alllllllllllllllllllllllllllllllllllllll(87 Stat. 884, as amsnded: 1 CI U.S.C. 1531 e qtfeq.

is reaqctlrsd. Because no take of fedwalk I'lebd s@&.es Is eirttlciwd, none irs a u h ~ z d.

This r e s m e does not reflect potebnwl Fish and WMttfg Smite eoncems undw the Fish and Vtfildlifrs Cortdmt30n Act or other m f i m s *

• SprscSal %mm S

- Pknt or an-l classjRed a

rare, d i d

• as wgfl as mabn conawn, nt natural c o s n m mulams fm&

or d-1 and unhue gdogic fmturm.

iwafiitla by the juWicYin& @m as &led&,

ha ptlble b d d w es a rigsuit d @&M.

WHAT 7 0 SEND TO JUR1SDICTIONAL AGENCIES If WOW B OP m e

Fk1s ndWfolWrwjin n

ts the agct AGENCY

).

S l r j N E f l copy of this Pro@& kvimnaeml cttmcteri*

of the site and acreage to be Pmje& location i on (name of USGS dTue&mb, TfowftshiplM USGS 7.Mnute Q u a 6 q I a with prdrPct hndafy dear& IndMgd, and quad name on tFre: m p The imflla3on oif the fothDWlw intcrrmstl~tl may slta @n(partlarla&

lnCj the reiatlonship d fhs projeGt to ttrg physical feilturrss strwm, poreds, rock outmaps, etc.)

r ph&

keyed ts tha bat& site @an (i.co. showing on the SktP3 @an where and In what P&&

was Wen atrd the date of tfte photm)

Infm&rt: &wvt

-*me and 1-m Ol wtb& in area, and how Ws wecs &tsmiW (e,g,, by a galif& w e n 6 mllol~ist), d w*&o are me locadion d features, a$ wetl as w&ntls The E P required far this ppoi&

Ms. Chris Firestone January 19, 201 1 Page 14 of 19 PNBI Project Envkomenal Review Receipt Raject Search ID: 20 1 WOh237567 4, DEP INFORMATION rsquirerf d m m ~ t 8 t i a ~ t

Ms. Chris Firestone January 19, 201 1 Page 15 of 19 PNDI Prajeet Eavkomad R~view Receipt Project Search ID: 20100406237563 For a list d species k n

~

to occur in ffw munty W r e yacr note that the PNDl En\\/lmnmwhl Review Toof only contains adus& k n

m m e d to the PMWP.

8. AGENCY CONTACT INFORMIA'TSOM 400 Market Street, PC3 Bog 8552, Xenislruq, PA, 1 13 1 tt5-8ti52 NO Faxes Pkm.

Fax:f?ST) 772-0271 PA Fish a d Boat Cornmimilon PA Game Cmmission Division af Envimmntal Senrim Bursau of Wildlife Hebib$ W w m f 450 Rmnson Laart, Bellekrz1&, PA. 2682S.7437 DbMon of EnrimnmnW P M m g and MaQW P m M m NU Faxes Haase H d s b u g, PA. $73 10-9797 F ~ ( 7 1 7 )

737.45957

7. PROJECT CONTACT INFORMATION r8* CERVCFlCAVIQN ALL afthe project I h lhle mcsipt (idwing

, Praia

) is true, a~cplmte and mm Ition, If tfw type, Immn, sbe or conRgurtiltion manges, M if the answtsm to any questions that were asked d~aing thk

Ms. Chris Firestone January 19,201 1 Page 16 of 19 PNDI Project Environmental Review Receipt Project Search ID: 20100407237630 I. PROJECT INFORMATION Project &me; Eksdmimtw-WPF Date of review: W12016 1 @:62:31 AM Project Catekgory: Energy Storaga, Producttan, md Tmnder,Energy Pmhctian (gc~lcrration),#uckar Po#rrrr Ptrnt - maintenance, modlflcstion, or expansion Pmjed Area: 2.4 acres County: Bucks fownship/M unicipalii: Bedminster Quadrangle Name: BEIMalNBTER - ZIP Code: 18947 Dedmal Degrees: 40.399023 N, -7S.158205 W D e g w Minutes Seconds: 4V 23956.5". -75.$'2$.S" W 1

2. SEARCH RESULTS Agency Results

Response

PA Game Commissiwr No Known Impad No Further Review Required PA Department of Conservation No Known impact No Fwther Review Required and Natural Resourn PA Fish and Boat Commlssbn No K m

tmpad No Further Review Required U.S. Fish and Witdiife Servbce No Known Impact No Further Review Required As summarked above. Penfbq&nia Natural Diversity tnventory (PNDI) reawds indicate no known impas to threatew and endangrrred spedes andhw special concern spscjes arnd reewrcw wHhin the pmject a m,

Therefore, baseU on the in-you prwkled, no hKther coodination is requlmd with thejuricrdicbbr\\~

agoncb. tMs mqomw does not reRed potentlai agency concerns nrgarolkrg knpacts to other ecological resou-,

Duch ee wetlands.

Ms. Chris Firestone January 19, 201 1 Page 17 of 19

%SF$Df Project Envkomentaf Review R-ipt Project S a c h ID: 2010M07237630 requlm a Chaptar 30% DEP in&&!

p m i t or GP 5,8,

t. 8,9 M t f in ~eyt%lh munth ( M m,

kit1 and Yo&) must wtth the t)og tCETtIe 3, AGENCY COMMENTS b &Wen&

w r a p date ctiontci qency m y b needed if PA Game Commfsetian RESPONSE: MO ~nrpact is smpatsld to meteracbd entEtltngm 8agdw andfor s w i & m c a m spec& S M rwuf*LIP;.

PA Depament af Ccrnsenratlon ;smd Natural Rekources ONSE: r(a, l m p d Is iwt~cipatd to and r m u m.

PA Fish and Boat Commission

RESPONSE

NO I is adicipated to It\\rabnd and endangered smw andfor qmdal m i e s atxi m m r a

• U,S, Fish and Wilclllfa Service b nqul&. Efsmttge refkt wen2laf Flsh

& b @ l ~ '

OEP EMFOliCMATtON The Pa W p a m n t d Envim the qplicrrbon has h n

Ms. Chris Firestone January 19, 201 1 Page 18 of 19 PNDI Projwt Envhoment-df Review Receipt Project Smch ID: 20 3 MOT237630 smErf be 8rnlttsB to DE wdrangle map with the p the map, The PNOI R e i p t should r71fso be sub tn airdons apl PNDl Receipt. DEP and the jwdicrtional agency will rnpct(s). See &a DEP PNDt policy st

Ms. Chris Firestone Attachment I January 19, 201 1 Page 19 of 19 mDlt Project Envkomenbl Review RmiftL Praject Search ID: 20180.407237630

5. AbblTlONAL INFORMATION ktg taol. Them 918 OM delays in upd1ng rsncy ststff Qve the m a r t infamamn sn&ngw& and!@ s@W%l m a m spewiea and w o r m exkt 10 y w pwect BPC~B, GO&&

&c1 appw'ate jurisddmaf qeney/agendtl.s Inrrrrerfkbly t6 kntity snd rc3mlve any h For a list of t~ a w r hl the wmq where your pltlj wuttty lwn

&(mi HeTitBw Pttfllmm (PMXP) bm note Wt &the PNDI Envirmmmtal Rwidw T d an@ m W n s in%

aduaitly berm reported to the WHP*

6. AGENCY CONTACT INFORMATION

&on and 19.5. Fish and Wildli%

bl Ssryices SIsction 322, SZzlte W w, PA*

400 k r k e t Street, PO Box 85S2, Hafirisburg, PA.

17105-8552 NO F m s atfaase.

Fa:(? t 7) 772-027t PA Fish and 8-t Gommi~~f~lon PA Game Cammission Bvisim of E n v i m m b l Services Bureau of Wldrfe WWtat W m m t 450 RolsSnsion Lam, %ll&nte, PA. l ti.823-Wf DlWw of Ertviranmntal mnn@ and H & W Protecction NO Faxes 2001 Elmerton HaRCebu~g, PA. $71 10-97 94 Fm(f I?)

787a67 "P PROJECT CONTACT INFORMINION A

8. CERTlFlCA'ltTON I certify hat ALL of the projeci in si+stect~tf@urstion~

pr@ed type, ansvvers to questimsf is $us, accuratg and mpl*.

In a&i

Ms. Chris Firestone January 19, 201 1 Page 1 of 5 ATTACHMENT 2 State-Listed Endangered and Threatened Species

Ms. Chris Firestone January 19, 201 1 Page 2 of 5 Threatened and Endangered Plant Species that could occur in Montgomery, Chester, and Bucks Counties Counties with Scientific Name Common Name Federal Status State Status Recorded Location Agalinis auriculata Eared False-foxglove Endangered Montgomery, Chester, Bucks Ammanian coccinea Scarlet Ammannia Endangered Bucks Arabis missouriensis Missouri Rock-cress Endangered Montgomery Arefhusa bulbosa Swamp-pink Endangered Chester Aristida purpurascens Arrow-feathered Three Awned Threatened Chester, Bucks Arnica acaulis Leopard's-bane Endangered Chester Asplenium bradleyi Bradley's Spleenwort Threatened Chester Bidens bidentoides Swamp Beggar-ticks Threatened Bucks Bouteloua curtipendula Tall Gramma Threatened Chester Carex alata Broad-winged Sedge Threatened Bucks Carex bicknellii Bicknell's Sedge Endangered Chester, Bucks Carex bullata Bull Sedge Endangered Chester, Bucks Carex crinita var. brevicrinis Short Hair Sedge Endangered Chester, Bucks Serpentine Chickweed Dodecatheon radicatum Echinochloa walteri Eleocharis obtuse var.

pease; Eleocharis parvula Eleocharis quadrangulata Elephantopus carolinianus Ellisia nyctelea Jeweled Shooting-star Walter's Barnyard-grass Wright's Spike-rush Little-spike Spike-rush Four-angled Spike-rush Elephant's foot Ellisia Threatened Endangered Endangered Endangered Endangered Endangered Threatened Montgomery Bucks Bucks Bucks Bucks Chester Montgomery,

Ms. Chris Firestone January 19, 201 1 Page 3 of 5 Threatened and Endangered Counties Scientific Name Ep~lob~um sfr~cfum Er~ophorum graclle Er~ophorum fenellum P

Erlophorum vmd~car~nafum Euphorb~a lpecacuanhae Euphorbla purpurea Eurybla spectabll~s Euthamla fenu~fol~a Fesfuca paradoxa F~mbr~sfyl~s annua Gaylussac~a dumosa Glycena obfusa Hellanthemum blcknel111 Heferanfhera mulf~flora Hyper~cum maps llex opaca Iris pr~smaf~ca Iris verna Isotrla medeolo~des Juncus d~chofomus Juncus sc~rpo~des Juncus forrey~

L~num

~nfercursum Llsfera austral~s Llstera cordafa Lobella ka1m11 Lobella puberula Lycopod~ella alopecuro~des Lycopod~ella appressa Lycopus rubellus Lyonla manana Plant Species that could Common Name Downy W~llow-herb Slender Cotton-grass Rough Cotton-grass Th~n-leaved Cotton-grass Wrld Ipecac Glade Spurge Low Showy Aster Grass-leaved Goldenrod Cluster Fescue Annual Frmbry Dwarf Huckleberry Blunt Manna-grass B~cknell's Hoary Rockrose Multl-flowered Mud-plantam Larger Canadran St John's-wort Amer~can Holly Slender Blue lr~s Dwarf lr~s Small-whorled Pogon~a Forked Rush Scrrpus-lrke Rush Torrey's Rush Sandpla~n Wlld Flax Southern Twayblade Heart-leaved Twayblade Brook Lobella Downy Lobella Foxtall Clubmoss Southern Bog Clubmoss Bugleweed Stagger-bush occur in Montgomery, Chester, and Bucks Federal Status State Status Endangered Endangered Endangered Counties with Recorded Location Chester, Bucks Montgomery, Bucks Montgomery, Bucks Chester Threatened Threatened Endangered Endangered Endangered Threatened Endangered Threatened Endangered Endangered Endangered Endangered Threatened Threatened Endangered Endangered Endangered Endangered Endangered Threatened Endangered Endangered Endangered Endangered Endangered Endangered Threatened Endangered Endangered Bucks Bucks Chester Bucks Montgomery, Bucks Chester Chester Chester Montgomery, Montgomery Chester, Bucks Bucks Chester Chester, Bucks Montgomery, Chester, Bucks Bucks Chester Montgomery, Chester, Bucks Montgomery, Chester, Bucks Chester Montgomery, Chester, Bucks Chester Bucks Montgomery Chester Bucks Bucks Bucks Montgomery, Chester, Bucks

Ms. Chris Firestone January 19,201 1 Page 4 of 5 Threatened and Endangered Counties Scientific Name Magnolia tripetala Magnolia virginiana Myriophyllum farwellii Myriophyllum heterophyllum Nymphoides cordata Panicum amarum var.

amarulum Panicum scoparium Parnassia glauca Phemeranthus teretifolius Phyllanthus caroliniensis Poa autumnalis Poa paludigena Polygala cruciata Polygala curtissii Polygala incarnata Polystichum braunii Populus balsamifera Potamogeton pulcher Potentilla paradoxa Prunus maritima Ptelea trifoliata Ptilimnium capillaceum Pycnanthemum torrei Quercus falcata Quercus phellos Ranunculus fascicularis Rhamnus lanceolata Rhexia mariana Rhynchospora capillacea Sagittaria calycina var.

spongiosa Scaphiopus holbrookii Schoenoplectus smithii Scleria minor Scleria muehlenbergii Plant Species that could Common Name Umbrella Magnolia Sweet bay magnolia Farwell's Water-milfoil Broad-leaved Water-milfoil Floating-heart Southern Sea-beach Panic-grass Velvety Panic-grass Carolina Grass-of-parnassus Round-leaved Fame-flower Carolina Leaf-flower Autumn Bluegrass Bog Bluegrass Cross-leaved Milkwort Curtis's Milkwort Pink Milkwort Braun's Holly Fern Balsam Poplar Spotted Pondweed Bushy Cinquefoil Beach Plum Common Hop-tree Mock Bishop-weed Torrey's Mountain-mint Southern Red Oak Willow Oak Tufted Buttercup Lance-leaved Buckthorn Maryland Meadow-beauty Capillary Beaked-rush Long-lobed Arrow-head Eastern Spadefoot Smith's Bulrush Minor Nutrush Reticulated Nutrush occur in Federal Status Montgomery, Chester, State Status Threatened Threatened Endangered Endangered Threatened Threatened Endangered Endangered Threatened Endangered Endangered Threatened Endangered Endangered Endangered Endangered Endangered Endangered Endangered Endangered Threatened Endangered Endangered Endangered Endangered Endangered Endangered Endangered Endangered Endangered Endangered Endangered Endangered Endangered and Bucks Counties with Recorded Location Chester, Bucks Montgomery, Chester, Bucks Bucks Bucks Bucks Bucks Chester, Bucks Bucks Chester Chester Chester, Bucks Chester Montgomery, Chester, Bucks Chester Chester Bucks Montgomery Bucks Montgomery Montgomery, Bucks Bucks Bucks Bucks Montgomery, Chester, Bucks Chester, Bucks chester Montgomery, Chester Chester, Bucks Bucks Bucks Bucks Bucks Chester Chester

Ms. Chris Firestone January 19, 201 1 Page 5 of 5 Note: -- in the Federal Status column signifies that the species is not a federally-listed species.

Threatened and Endangered Plant Species that could occur in Montgomery, Chester, and Bucks Counties Scientific Name Sclerla pauc~flora Sedum rosea Sertcocarpus I~n~fol~us Slsyr~nchlum atlantlcum Sparganlum androcladum Splranthes romanzofltana Splranthes vernahs Sporobolus heterolepls Symphyotrlchum depauperatum Symphyotrlchum now-belgll Trlphora trlanthophora Trlplasw purpurea Troll~us laxus Utr~cularla lntermedla Utr~cular~a radlata Vernonla glauca Vlburnum nudum Vlola brlttonlana Common Name Few Flowered Nutrush Roseroot Stonecrop Narrow-leaved Whlte-topped Aster Eastern Blue-eyed Grass Branching Bur-reed Hooded Ladles1-tresses Sprlng Ladles1-tresses Pralrle Dropseed Serpentrne Aster New York Aster Noddrng Pogonla Purple Sandgrass Spreading Globeflower Flat-leaved Bladderwort Small Swollen Bladderwort Tawny Ironweed Possum-haw Coast V~olet Federal Status State Status Threatened Endangered Endangered Endangered Endangered Endangered Endangered Endangered Threatened Threatened Endangered Endangered Endangered Threatened Endangered Endangered Endangered Endangered Counties with Recorded Location Montgomery, Chester, Bucks Bucks Montgomery, Chester. Bucks Chester, Bucks Bucks Montgomery Montgomery, Chester Chester Chester Montgomery, Bucks Montgomery, Chester, Bucks Bucks Bucks Bucks Bucks Chester Montgomery, Montgomery, Chester, Bucks Bucks

Ms. Chris Firestone January 19, 201 1 Page 1 of 10 ATTACHMENT 3 Figures Depicting LGS Project Features Figure 1 LGS Plant Site Property Boundaries Figure 2 Perkiomen Pumphouse Figure 3 LGS Makeup Water Supply System Figure 4 Bradshaw Reservoir and Bradshaw Pumphouse Properties Figure 5 Bedminster Water Processing Facility Property Figure 6 Limerick to Cromby 230 kV Transmission Line Route Figure 7 Cromby to North Wales 230 kV Transmission Line Figure 8 Cromby to Plymouth Meeting 230 kV Transmission Line Route Figure 9 Limerick to Whitpain 500 kV Transmission Line Route

Ms. Chris Firestone January 19, 201 1 Page 2 of 10 Linear Unl Foot US I Exelon Generabon-mnsd propen).

Exelon Generation

- - County Boundary

- - Muniapal Boundary ius Exclusion Area

Ms. Chris Firestone January 19, 201 1 Page 3 of 10 W e r a n a e Exebn.

USGSTopographlc aadrangle Cdlegavllk, 1938 W 1983 Slate Pbne Pennqtvanla Soum Rolecbon LamSert Conformal Canlc h e a r Unt Foot US Figure 2 Perkiomen Pumphouse Exelon Generation Limerick Generating Station Llmenck Township, Montgomery County, PA

Ms. Chris Firestone January 19, 201 1 Page 5 of 10 13 P m m Boundary Figure 4 Bradshaw Reservoir and Bradshaw Pumphouse Propert~es Exelon Generation Limerick Generating Stat~on UmMdc T O w H p, Montgmety County, PA

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Figure 6 Limerick to Cromby Limenck-Cromby 220-60 Line w interstate H~ghway 230 kU Transmission Line Route L~menck-Cromby 220-61 L ~ n e Highway Substation (POLMRmap 2009) 0 state ~~~d k d 0 n Generat~on Ltmenck Generat~ng Statron L~menckTownship Montgomery County PA

Ms. Chris Firestone January 19, 201 1 Page 8of 10

Ms. Chris Firestone January 19, 201 1 Page 9 of 10

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Ms. Chris Firestone January 19, 201 1 Page 10 of 10 NnD 1333 Slate Plane Pennsytianla SolRh Rqedon Lahert C o n f o m l Conic 1 ~n = 2 mlles Linear Unl Fool US Munupal Boundary

BUREAU OF FORESTRY j i

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March 9,201 1 Michael P. Gallagher, PE Exelon Nuclear 200 Exelon Way KSA/2-E Kennett Square, PA 19348 i

PNDI Number: 21136 Re:

Renewal of Operating Licenses for Limerick Generating Station, Units 1 and 2 Chester, Montgomery, & Bucks Counties

Dear Mr. Gallagher,

Thank you for your submission of the Pennsylvania Natural Diversity Inventory (PNDI) Environ~nental Review Large Project Number 21136 for review. PA Department of Conservation and Natural Resources screened this project for potential impacts to species and resources of concern under DCNR's responsibility, which includes plants, terrestrial invertebrates, natural communities, and geologic features only.

No Impact Anticipated PNDI records indicate species or resources of concern are located in the vicinity of the project. However, since the renewal does not involve new construction, refurbishment, ground disturbance, changes to operations or existing land use conditions, DCNR has determined that no impact is likely to occur to species of special concern under our jurisdiction as a result of this project.

For your information, we have included details on the species of special concern which are known near the rights of way of the LGS transmission corridors. If plans change to include earth disturbance in these locations, please coordinate with us further.

Limerick to Crombv 230kV Transmission Line Route Rotala rurnosior (Tooth-cup, PA Rare): habitat is described in Plants of PA, by Rhoads and Block as wet, sandy shores and other swampy open ground; flowers July-Sept. Tooth-cup is known in a wet wooded stretch along the west side of the Schuylkill River.

Cyperus schweinitzii (Schweintiz's flatsedge, PA Rare): habitat includes dry or moist sand flats and dunes; flowering and fntiting time is mid-summer to early fall. Schweinitz's flatsedge was found in association with Tooth-cup in a wet wooded area along the west side of the Schuylkill River.

Arabis rnissouriensis (Missouri rock-cress, PA Endangered): habitat includes dry slopes; flowers April-early June. Missouri rock-cress was found nearby in a dry forested slope with scattered outcrops of Brunswick red shale. If work is planned (especially ROW widening) in the future for the eastern Limerick

-Cromby 220-60 Line, please coordinate with us further.

Arabisputens (Spreading rock-cress, Currently Unlisted, Proposed PA Threatened): habitat is moist, rocky woods; flowers April-July. Spreading rock cress was found nearby in a shaded NW-facing rock face.

Cromby to North Wales 230kV Transmission Line Route cbnserve sbstaan efijoy P.O. Box 8552, Harrisburg, PA 17105-8552 717-787-3444 (fax) 717-772-0271

PNDI Number: 21 136 Arabispatens (Spreading rock-cress, Currently Unlisted, Proposed PA Threatened): habitat is moist, rocky woods; flowers April-July. Spreading rock cress was found nearby in a shaded NW-facing rock face.

Iris prismatica (Slender Blue Iris, PA Endangered): habitat is moist meadows and sandy or gravelly shores:

flowering time is late May-June. Slender blue iris was found nearby in gently sloping land, open with scattered red maples in a mossy floodplain of the Perkiomen Creek.

Rarzunculus fascicularis (Tufted buttercup, PA Endangered): habitat includes dry, think woods and exposed calcareious slopes and edges; flowers April-May. Tufted buttercup was found nearby in a ridgetop glade near trails in a state park.

Crombv to Plymouth Meeting 230kV Transrnission Line Route Arabispatens (Spreading rock-cress, Currently Unlisted, Proposed PA Threatened): habitat is moist, rocky woods; flowers April-July. Spreading rock cress was found nearby in a shaded NW-facing rock face.

Atzflropogon gyrans (Elliott's beardgrass, Currently unlisted, Proposed PA Rare): habitat is dry or moist fields or open woods; flowering time is September to October. Elliott's beardgrass was found nearby in an old field.

Cuscuta campestris (Dodder, Currently Unlisted, Proposed PA Threatened): habitat includes thickets and waste ground, parasitic on wild and cultivated hosts; flowers June-September, fruits July-October. This dodder species was previously found in an old impounding basin, near the Schuylkill River.

Rotala ramosior (Tooth-cup, PA Rare): habitat includes wet, sandy shores and other swampy open ground; flowers July-Sept. This population of Tooth-cup was found on an exposed mud flat and sandy-cobbly shores of seasonally flooded shallow basins.

Limerick to Whitpain meet in^ 500kV Transmission Line Route Ranunculus fascicularis (Tufted buttercup, PA Endangered): habitat includes dry, think woods and exposed calcareious slopes and edges; flowers April-May. Tufted buttercup was found nearby in a ridgetop glade near trails in a state park.

Irisprismatica (Slender Blue Iris, PA Endangered): habitat is moist meadows and sandy or gravelly shores; flowering time is late May-June. Slender blue iris was found nearby in gently sloping land, open with scattered red maples in a mossy floodplain of the Perkio~nen Creek.

This response represents the most up-to-date sumtnary of the PNDI data files and is valid for one (1) year from the date of this letter. An absence of recorded information does not necessarily imply actual conditions on-site. Should project plans change or additional information on listed or proposed species become available, this determination may be reconsidered. Should the proposed work continue beyond the period covered by this letter, please resubmit the project to this agency as an "Update" (including an updated PNDI receipt, project narrative and accurate map).

This finding applies to impacts to DCNR only. To complete your review of state and federally-listed threatened and endangered species and species of special concern, please be sure the U.S. Fish and Wildlife Service, PA Game Commission, and the Pennsylvania Fish and Boat Commission have been contacted regarding this project as directed by the online PNDI ER Tool found at u\\~\\\\.n Sincerely, Rebecca H. Bowen, Environmental Review Manager FOR Chris Firestone, Wild Plant Program Mgr.

Ph: 7 17-772-0258 - c-rbowen0state.pa.u~

C b n S e r 4 E SE2%G3~3 e q 6 j P.O. Box 8552, Harr~sburg, PA 17105-8552 717-787-3444 (fax) 717-772-0271