ML082470532

Discharge Monitoring Report (DMR) - July 2008

ML082470532
Person / Time
Site:	Limerick
Issue date:	08/25/2008
From:	Callan E Exelon Generation Co, Exelon Nuclear
To:	Office of Nuclear Reactor Regulation
References
Download: ML082470532 (25)

Text

~x Nuclear NPDES Permit No. PA 0051926 August 25, 2008 Department of Environmental Protection Bureau of Water Quality Management Southeast Regional Office 2 East Main St.

Norristown, PA 19401 Limerick Generating Station Units 1 and 2

Subject:

Limerick Station Discharge Monitoring Report (DMR)-July 2008 Attached please find the July 2008 Discharge Monitoring Report (DMR) for Limerick Generating Station.

There are no commitments contained in this report.

If you have any questions or require additional information, please do not hesitate to contact Bob Alejnikov at 610-718-2513.

Sincerely, Edward W. Callan Plant Manager - Limerick Generating Station Exelon Generation Company, LLC

Attachment:

Discharge Monitoring Report (DMR)-July 2008 cc: EPA, Region Ill, 3WP50 w/ attachment DRBC w/ attachment USNRC Document Control Desk w/attachment

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PERMITTEE NAME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

FacilitylName / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRIHARYý FACILITY-: LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147684 OMB NO. 2040-0004.

ADDRESS!200 EXELON WAY Southeast Region Facsimile iKENNETT SQUARE, PA 19348

• To calculate Credits see SITE LOCATION: 3146 SANATOGA ROAD, POTTSTOWN, PA 19464 Condition No. 14 on page 33.

MUNICIPALITY: LIMERICK TOWNSHIP COUNTY:I MONTGOMERY NOTE: Read instructions before completing this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUM MINIMUM AVERAGE MAXIMUM DAILY MONTHLY DAILY UNITS INST MONTHLY UNITS Sample I Measurement 8.74 10.02 XXXX XXXX XXXX FLOW Permit MONITOR MONITOR Requirement REPORT REPORT MGD XXXX XXXX XXXX 1/WEEK MEASURED Sample TEMPERATURE Measurement XXXX XXXX XXXX XXXX 88 (EFFLUENT)] Permit INST. MAX

- Requirement XXXX XXXX XXXX XXXX XXXX 110 OF 1/WEEK I-S i Sample TOTAL RESIDUAL I Measurement XXXX XX3LX XXXX XXXX 0.1 OXIDANTS Permit Requirement XXXX XXXX XXXX XXXX XXXX 0.2 MG/L 1/WEEK GRAB Sample Measurement XXXX XXXX 8.2 XXXX 8.6 pH Permit INST. MAX STD

_, _ Requirement XXXX XXXX XXXX 6.0 XXXX 9.0 UNITS 1/WEEK GRAB Sample S PECTRUS CT1300 Measurement XXXX XXXX XXXX <0.05 <0.05 Permit 0.2 0.4 Requirement XXXX XXXX XXXX XXXX MG/L l/WEEK GRAB Sample TEMPERATURE (RIVER INTAKE) Measurement XXXX XXXX XXXX 79 82 Permit (RIVER________ !Requirement,Peremt XXXX xMONITOR XXXX XXXX XXXX REPORT MONITOR REPORT OF F 1!WEEK I-S Measurement TOTAL SUSPENDED Permi t XXXX XXXX XXXX NR NR SOLIDS Requirement

,__Sample XXXX XXXX XXXX XXXX 30 60 MG/L 1/WEEK 24 HC Measurement C A DMI UM, [ TOTA L R e qPermit u i r em e n t XXXI x XXX0 XXXX <0.005 <0.005 X XM O I R RE RT ON OR EP T

_____ Sample XXXI XXXX xX XXXX MONITOR REPORT MONITOR REPORT MG/L 2/MONTH 24 HC EAMF,'TIT.E PP]NITAL EXECUTIVE QFFTCER I CERTIFY UNDER PENALTY OF LAW THAT I HAVE PERSONALLY EXAMINED AND TELEPHONE DATE Christopher H. Mudrick, V.P. AM FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN AND BASED ON MY Edward W. Callan Limerick Generating Station INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAININ Plant Manager/4M$

i THE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUE, ACCURATE AND COMPLETE. I AN AWARE THAT THERE ARE SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE 610 718-2000 08 08 25 LPOSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. 11001 AND 33 U.S.C. §1319. (Penalties under these statutes may include fines up TYPE OR FERINT Io $10, 000 and or maximum imrprisornment of between 6 months and 5 SIGNATURE OF PRINCIPAL EXECUTIVE AE years) OFFICER OR AUTHORIZED AGENT CODE NUMBER YEAR MO DAY EXPLANATIOINI OF VIULA.IOuNS PERMIT EXPIRES 3/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Rev. 9-88) previous eoition may be Used. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED) Page 1 of 13 Re 30 (CD05WOM)256-13

DISCHARGE MONITORING REPORT SUPPLIMENTAL FORM For the MONTH July 2008 LIMERICK GENERATING STATION Limerick Township Montgomery 'County DAY FLOW .JTSS7 [TEMP(elff)I TRO j pH 1Spectrus CT 1300,fCadmium, Total TEMP(in)

MOD m/ F , *[ , ,, STD, m/ F ,m/

1 9.46 <005 2 8.98 NR 83.1 0.12 8.32 <0,005 76.5 3 8.61 4 99.42 5 9.41 6 10.02 7 9.58 <0.05 8 8.54 9 9.41 NR 87.9 0.10 8.21 <0.005 78.8 10 8.10 11 9.23 12_ 9.48 13 9.99 14  ! 8.05 <0.05 15 ___ 9.49 16 _ 9.14 NR 84.1 0.10 8.24 <0,005 76.9 17 i 9.58 18 _ 9.02 19 7.91 20 _ 8.24 21 i 8.98 22 I 7.85 23 1 10.00 NR 87.9 0.11 8.63 <0.05 <0.005 81.8 24 7.34 25 8.28 26 7.95 27 9.17 28 8.18 29 6.97 NR 87.6 0.095 8.40 <0.05 <0.005 79.3 30 7.28 31 .7.30 I I AVg _8.74 NH XXX XXX XXX <0.05 <0.005 78.7 I 4 4 4 MAX 10.02 NR 87.9 0.12 8.63 <0.05 <0.005 81.8 MIN xxx xxx xxx XXX 8.21 [ XXX XXX XXX Laboratory Name* M.J. Reider Asso ;., Inc. In House? Yes Signature: ,*(ý REMARKS: TSS is NET TSS Telephone: (610) 7- 8:2500 NPDES permit PA0051926 for outfall 001

PERMITTEE NAME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

FacilityiNaine / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRfIgARYIFACILITY: LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: IEXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 14P 201 OMB NO. 2040-0004.

ADDRESS 200 EXELON WAY PERMIT NUMBER DISCHARGE NI Southeast Region Facsimile IKENNETT SQUARE, PA 19348 MONITORING PERIOD SITE LOCATION: 3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YEAR I MO DAY TO I YEAR I MO eDAY MUNICIPALITY: LIMERICK TOWNSHIP 081 07 01 I I 08 1 07 31 ,

COUNTY:! MONTGOMERY NOTE: R ead instructions before completing this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE

___ANALYSIS AVERAGE MAXIMUM MINIMUM AVERAGE MAXIMUM DAILY MONTHLY DAILY UNITS INST MONTHLY UNITS Sample FLOW F

!Measurement 261342 1038500 =X XXXX XXXX Permit MONITOR/ MONITOR/

Requirement REPORT REPORT GPD XXXX XX)X XXXX XXXX 1/WEEK MEASURED I Sample TOTAL SUSPENDED Measurement XXXX XXXX XXXX is 24 SOLIDS Permit

_ _Requirement XXXX XXXX XXXX XXYXX 30 100 MG/L 2/MONTH GRAB Sample

- Measurement XXXX XXXX X__X_7_8 OIL .AND GREASE Permit Requirement XXXX XXXX XXXX XXXX 15 20 MG/L 2/MONTH GRAB "zr.

Sample Measurement Permit

__ _ Requirement Sample Measurement Permit Requirement Sample Measurement Permit .

_ Requirement.

I Sample Measurement Permit

[ _ _ Requirement Sample Measurement Permit

_ _Requirement IANEiTITLI PE rPIAL E.EK.Tl OFFlEP T CERTIFY UNDER PENALTY OF LAW THAT I HAVE PERSONALLY EXAMINED AND TELEPHONE DATE Chris topxer H. Mudrick, .P. AM FAMILIAR WITH THE INFORMATION SUBMII'ED HEREIN AND BASED ON MYEdward W. Callan Limerick Generating Station INQUIRY OF THOSE INDIVIDUALS IMNEDIATELY RESPONSIBLE FOR OBTAINING Plant Manager THE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUE, ACCURATE AND COMPLETE. I AM AWARETHAT THERE ARE SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33 610 718-2000 08 08 25 U.S.C. §1319. (Penalties under these statutes may include fines up TYPE OR PRINT to $10,000 and or maximum imprisonment of between 6 months and 5 SIGNATURE OF PRINCIPAL EXECUTIVE AREA years) OFFICER OR AUTHORIZED AGENT CODE NUMBER YEAR MO DAY COMMENT IAND EXPLANATION OF ANY VIOLATIONS PERMIT EXPIRES 3/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Rev. 9-88) pfevious edition may be Used. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED) Page 2 of 13 Re 30 (CDO5WOM)256-13A

PERMITTEE NAM, E ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

FacilitylName / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRIMARYIFACILITY: LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: 1EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 MP 301 OMB NO. 2040-0004.

ADDRESS1200 EXELON WAY PERMIT NUMBER DISCHARGE NUMBER Southeast Region Facsimile

!KENNETT SQUARE, PA 19348 MONITORING PERIOD

• During discharge of wastewater f SITE LOCATION: 3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YEAR MO I DAY TO I YEAR MO M I DAY l laundry drain collection systen MUNICIPALITY: LIMERICK TOWNSHIP 08 1 07 01 08 107 1 31 COUNTY:i MONTGOMERY NOTE: Read instructions before completing this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE AVERAGE ANALYSIS MAXIMUM MINIMUM AVERAGE MONTHLY DAILY UNITS INST MONTHLY MAXIMUM DAILYUNITS Sample Measurement 16822 31464 XXXX XXXX XXXX FLOW Permit MONITOR/ MONITOR/

i_ Requirement REPORT REPORT GPD XXXX XXXX XXXX yOOO 1/WEEK MEASURED Sample TOTAL SUSPENDED Measurement XXXX XXXX XXXX NR NR SOLIDS I Permit

_ _ Requirement XXXX XXXX XXXX xx X 30 100 MG/L GRAB Sample OIL ANDIGREASE Measurement XXXX XXXX XXXX NR NR

_ Requirement XXXX XXXX XXXX XXXX 15 20 MG/L GRAB Sample IMeasurement Permit

___________ Requirement __________ _______

Sample Measurement:

Permit Requirement Sample Measurement Permit Requirement Sample Measurement Permit Requirement_

Sample I Measurement Permit Requirement IATI.IýrLTLE PmHIFAL E.:aCUTc'E )FFICER I CERTIFY UNDER PENALTY OF LAWTHAT I HAVE PERSONALLY EXAMINED AND TELEPHONE DATE Christopher H. Mudrick, V.P. AN, FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN AND BASED ON MYEdward W. Callan LimericklGenerating, Station INQUIRY OF THOSE INDIVIDUALS I BELIEVE IMMEDIATELY RESPONSIBLE FOR OBTAINING THE INFORMATION, THE SUBMITTED INFORMATION IS TRUE, Plant Manager4.

ACCURATE AND COMPLETE. I AM AWARE THAT THERE ARE SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE / .A 610 718-2000 08 08 25 POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33 U.S.C. §1319. (Penalties under these statutes may include fines up TYPE OR FEINT to $10,010 and or maximum imprisonment of between 6 months and 5 SIGNATURE OF PRINCIPALF EXEUTIVE AREA years) OFFICER OR AUTHORIZED AGENT CODE NUMBER YEAR MO DAY COMMFLNTIr AIALU EXPVLANATIUON OFl ANlY VIOLATlI'ONS (reference all attachments here)

PERMIT EXPIRES 3/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM T-40 WHICH MAYNOT BE USED) Page 3 of 13 Re 30 (CDO5WOM)256-13B

DISCHARGE MONITORING REPORT SUPPLEMENTAL FORM Forthe MONTH July 2008 LIMERICK GENERATING STATION Limerick TowJnship Montciomerv

-r_

'Countv -

201 301 Day 'FLOW ~ TSS' , O&G. FLOWý TSS O&G

__ "ýIGPD '~ mg/I <~~~m/GPD *'giMg4 -

1 _ 160,000 0 2 _ 180,000 0 H33 160,000 0 4 210,000 180,000 0 0

5__ 180,000 ______________ ________

66 160,000 0 77 160,000 0 88 200,000 0 9 200,000 10 31464 10 108,000 15732 11 200,000 0 12 160,000 15070 13 _ 160,000 0 14 F 200,000i 0 15 i 160,0001 0 16 17 18 F

I 220,000 380,900 149,000 0

0 15996 19 150,000 15467 20  ! 155,000 15467 21 160,000 0 22 _ 160,000 0 23 F 720,000 12 8 0 24 320,000 0 25 _ 379,100 15335 26 i 543,800 15467 27 1,038,500 15467 28 _ 195,000 24 15467 29 _ 276,400 15467 30 _ 281,400 154671 31 _ 374,500 01 AVG L 1 261,342 15.3 6.7 16.822 NR NR 8.0 31,464 NR NR MAX 1,038,500 24 XXX XXX . .. NYX XXX MIN XXX XXX Laboratory Name: M.J. Reider Assoc., Inc.for O&G In House? Yes Signature:

REMARKS: See attached for OLitfall 201 TSS exceedance. Telephone: ~(91- ) :A 7-250 0 NPDES permit PA0051926 for outfall 201,301

PERMITTEE NAME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

Fcini, l*me / Location it ditterenrý DISCHARGE MONITORING REPORT (DMR)

PRIMARY!FACILITY: LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: ! EXELON GENERATION COMPANY,LLC-CLIENT ID NO. 147686 PA0051926 MP 401 OMB NO. 2040-0004.

ADDRESS:200 EXELON WAY KENNETT SQUARE, PA 19348 PERMIT NUMBER I MONITORING I DISCHARGE NUMBER PERIOD 1 Southeast Region Facsimile

• Sample shall be collected during the di SITE LOCATION: 3146 SARATOGA ROAD, POTTSTOWN, PA1946 YEA I M I DAY I TO MO I DAYR from the overflow location at the pond.

MUNICIPALITY: LIMERICK TOWNSHIP 1 08 1 07 1 017 081 0 13

• Sample the spray pond.

ml9[rrdmV* I M*Iq'PC-*MR RY ,ww-iona bafara rccm~lstinc this form

_____________ . _____________________ j Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE MAXIMUM DAILY ANALYSIS MINIMUM AVERAGE AVERAGE MAXIMUM MONTHLY DAILY UNITS INST MONTHLY UNITS Sample I MLieasurement 10685 14400 X-XX XXXX XXXX FLOW Permit MONITOR/ MONITOR/

Requirement REPORT REPORT GPD XXXX XXXX XXXX XXXX MEASURED Sample TOTAL PIIOSHORUS Measurement XXXX XXXX XXXX 0.27 0.43 as P Permit MONITOR/ MONITOR/

Requirement XXXX XXXX XXXX XXXX REPORT REPORT MG/L *1/WEEK GRAB Sample Measurement Permit

____ Requirement Sample Measurement Permit

____ Requirement_

Sample Measurement Permit Requ irement _

Sample Measurement Peermi t P

_ _Requirement_

Sample

- Measurement Permit

_ _ _ Requirement Sample Measurement Permit

_______Requirement NeEl/TITLE RNCIPAIL ECEtMTIVYEOFFICER I CERTIFY UNDERPENALTY OF LAWTHAT I HAVEPERSONALLY EXAMINED AND TELEPHONE DATE Christopher H. Mudrick, V.P. AM FAMILIAR WITH THE INFORMATION SUBM1PTED HEREIN AND BASED ON MYEdward W. Callan Limerick!Generating Station INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OHTAINING Plant Manager/4 THE INFORMATION, I RELIEVE THE SUBMIT'PED INFORMATION IS TRUE, ACCURATE AND COMPLETE. I AM AWARETHAT THERE ARE SIGNIFICANl PENALTIES FOR SUBMITTPING FALSE INFORMATION, INCLUDING THE 610 718-2000 08 08 25 POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33 u.S.C. §1319. (Penalties under these statutes may include fines up TYPE OR PRINT to $10,000 and or maximum imprisonment of between 6 months and 5 SIGNATURE OF PRINCIPAL E0ECUTIVE years) OFFICER OR AUTHORIZED AGEI-T CODE NUMBER YEAR MO DAY COMMENT AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)

PERMIT EXPIRES 3/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM T- 40 WHICH MAY NOT BE USED) Page 4 of 13 Re 30 (CD05WQM)256-13C

DOSCHARGE MONITORING REPORT SUPPLIMENTAL FORM For the MONTH July 2008 LilvIERICK GENERATING STATION Limerick Townsrip Montgomery 'County

[K-'Al. iLQ'VV r Pfiisphorous CIPP Tolal 3 14400 4 14400 6 14400 7 11 14400 0.22 8 14400

" i1440 _o ______

10 14400 10 14400 21 14400 13 7200

] '7200 0.43 15 7200 16 7200 17 7200

_18 J7200

_19 7200 20 17200 21 114400 0.18 22 !14400 23 114400 24 114400 25 114400 26 I 7200 27 14400C 28 s16 0,24 29 16 _ _

30 101 3i 7200 Avg 10(385 0.27 iVIIA" 14400 0.43 tJIiN XX> xxx Laboraiory Name: M .J. Reider Assoc., Inc. In House? N/A Signature:

REMARKS:

Telephone: T610) 718-2500 NPDES permit PA0051926 for outfall 401

PERNITTEE NAIME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) i Facility iName / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRI11ARY IFACILITY: LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: 1EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 002, 004, 022 OMB NO. 2040-0004.

ADDRESSj200 EXELON WAY PERMIT NUMBER DISCHARGE NUMBER Southeast Region Facsimile iKENNETT SQUARE, PA 19348 MONITORING PERIOD

• To calculate Credits see SITE LOCATION: 3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YEAR I MO I DAY I TO I YEAR I MO I DAY Condition No. 14 on page 33.

MUNICIPALITY: LIMERICK TOWNSHIP 08 10 01 1N0807 1 e COUNTY:! MONTGOMERY NOTE: Read instructions before completing this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS Sample C-BIOCHEMICAL Sml EN IOXY Measurement XXXX XXXX XXXX XXXX NR

(-Y) Permit REPORT 1 PER i (5-DAY _ _ Requirement XXXX XXYX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GFAB I Sample CHEMICAL OXYGEN Measurement XX=X XY*X XYXX XXXX NR DEMAND Permit REPORT 1 PER 1

_ Requirement XXX XXXX XXXX. XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample O Measurement XXXX XXXX XXXX XXXX NR OIL AND GREASE Permit REPORT 1 PER 1 Requirement XXXX XXXX XXY*X XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample pH Measurement XXXX XXXX XXXX XXXX NR Permit REPORT STD 1 PER 1

__ Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. UNITS YEAR GRAB Sample TOTAL SUSPENDED Measurement XXXX XXXX XXXX XXXX MR SOLIDS (TSS) Permit REPORT 1 PER 1 Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB I Sample TOTAL KJELDAHL Measurement XXXX XXXX XXXX XXXX NR NITROGEN (TKN) Permit REPORT 1 PER 1 Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample TOTAL PI4OSPHORUS Measurement XXXX XXXX XXXX XXXX NR Permit REPORT 1 PER 1 Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample IRON (DISSOLVED) Measurement XXXX XXXX XXXX XXXX NR FPermit REPORT 1 PER 1

_ Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB NiAIE!TI.T1 ynRICIPAL tXICýrTIVE QFF17tR I CERTIFY UNDER PENALTY OF LAW THAT I HAVE PERSONALLY EXAMINED AND TELEPHONE DATE Christophier H. Mudrick, V.P. AM FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN ANDBASED ON M Edward W. Callan Limerick Generating Station INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAINING Plant Manager, THE INFORMATION, I BELIEVE THE SUBMITIED INFORMATION IS TRUE, ACCURATE AND COMPLETE. I AM4AWARETHAT THERE ARE SIGNIFICANq PENALTIES FOR SURMIT'TING FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE AN* IMPRISONMENT SEE IS U.S.C. §1001 AND 33 U.S.C. 51319. (Penalties under these statutes may include fines up TYP. OR PRINT to $10,000 and or maximum imprisonment of between 6 months and 51SIGNATURE OF PRINCIPAL EXECUTIVE AREA years) OFFICER OR AUTHORIZED AGENT CODE NUMBER YEAR, MO DAY PERMIT EXPIRES 3/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED) Page 5 of 13 Re 30 (CD0IWQM)256-13D I

DISCHARGE MONITORING REPORT SUPPLIMENTAL FORM Forthe MONTH July 2008 LIMERICK GENERATING STATION Limerick Township Montgomery P2ounty I

DAY CBOGJ -. COP

______ mg/I j O&G mg/ t:pH STM__15 _ ___

NH3NI.hos.I!on~dis) 2 3 '

4 5

6 7

8 9

10 ,

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 t.

28 29 30 31 Avg xxx xxx--- xxx I xXX I xxx I xxx I xxx I xxx MAX( NR! NR NR1 NR NR NR NR NR MIN xxý, XX xxx xxx xxx xxx xxx xxx _,_xz.

,/ ?

Laboratory Name M.J. Reider Assoc., Inc. In House? Yes Signature:

REMARKS: !610)718/-2500 Telephone: (610) 71 W-2500 NPDES permit PA0051926 for outfalls 002, 004, 022

PERM*ITTEE NAME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

FacilityiName / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRTIýIkRYIFACILlTY:i LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: !EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 l 003 OMB NO. 2040-0004.

ADDRESSý200 EXELON WAY PERMIT NUMBER I DISCHARGE NUMBER Southeast Region Facsimile IKENNETT SQUARE, PA 19348 MONITORING PERIOD Sample during discharge from drain valv SITE LOCATION: 3146 SANATOGA ROAD, POTTSTOWN, I I PA 19464 DAY TO YEAR I MO I DAY associated with the circulating water a MUNICIPALITY: LIMERICK TOWNSHIP 08 I 07 1 01 I I 0 107 1 I 31 Turbine Unit 1.

COUNTY: ! MONTGOMERY NOTE: Read instx -uctions before completing this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUM MINIMUM AVERAGE MONTHLY DAILY UNITS INST MONTHLY UNITS Sample No N FLOW Measurement Discharge Discharge XXXX XXXX XXXX I Permit MONITOR MONITOR Requirement REPORT REPORT MGD Xxxx MXXX XXXX XXX XX J Sample CALCULATED TOAILTOALSSPNDD SUSI'END)D Measurement Samele XXXX XXXX =xY No Discharge No Discharge SOLIDS Permit MONITOR REPORT MONITOR REPORT Requirement XXXX XXXX XXXX XXXX MG/L GRAB Sample No Discharge TEMPERATURE Measurement XXXX XXXX XXXX XXXX Permit INST. MAX Reauirement XXX X.CXX XXXX XXX XXXX

~Sample 110 °F I-S TOTAL RESIDUAL Measurement XXX XXX xxxx No Discharge OXIDANTS Permit I Requirement XXXX XXXX XXXX XXXX XXXX 0.2 MG/L GRAB Sample No Discharge No Discharge Measurement XXXX XXXX XXXX pH Permit INST. MAX STD Requirement XXXX XXXX XXXX 6.0 XXXX 9.0 UNITS GRAB Sample No Discharge No Discharge SPECTRUS CT1300 Measurement XXXX XXXX XXXX Permit x x X X X X

. G LG Requirement , XXX MXXX XXX XXXX 0.2 0.4 MG/L GRAB A Sample Measurement Permit Requirement Sample Measurement FPermit

'AS'TT E-- FA. EXEIT*VE 1FF I CERTIFY UNDERPENALTY OF LAW THAT I HAVE PERSONALLY EXAMINED AND TELEPHONE DATE Christopher H. Mudrick, V.P. AN FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN AND 3ASED ON MYEdward W. Callan LimericklGenerating Station INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAINING Plant Manager,ýie THE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUE, ACCURATE AND COMPLETE. I AM AWARETHAT THERE ARE SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORTMATION, INCLUDING ,-E

§1001 AND 33 (9M610A TB 1 718-2000 08 08 POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. 25 U.S,C. §1319. (Penalties under these statutes may include fines up TYPE OR PRINT to S10,000 and or maximum imprisonment of between 6 months and 5 SIGNATURE OF PRINCIPAL EXECUTIVE AREA

,years) OFFICER OR AUTHORIZED AGENT CODE NUMBER YEAR MO DAY In lhVnlDT 5mm F r".r/o nT nrl V A1 17TfnT 'AMT MlKlC .

PERMIT EXPIRES 3/31/2011 SUBMIT RENEJAL BY 9/30/2010 EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM T -40 WHICH MAY NOT BE USED) Page 6 of 13 Re 30 (CDO5WOM)286-13E

DISCHARGE MONITORING REPORT SUPPLIMENTAL FORM For the MONTH July 2008 LIMERICK GENERATING STATION Limerick Township Montgomery County DAY, FLOW: TEMP ' TSS,,, TTRO Spectrus CT 1300, pH

,f E :MG0. *:'*F.! " "mg//"*1 ....

1 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 A.1* _ __* U--L- I ,.U =_ ** ,-,..

17 _ _ _ _ _ __=-

18

.19 20 21 22 23 '

24 25 26 27 28 29 30 31 MVg No uiscnarge I )AAA No uiscnarge I Xxx No uDiscnarge xxx MAX[ No Discharge No Discharge No Discharge No Discharge No Discharge No Discharge MIN xxx xxx xxx xxx XXX No Discharge Iff f J l J Laboratory NamE N/A In House? Yes Signature: -

REMARKS:I Telephone: (610) 71M500 NPDES permit PA0051926 for outfall 003

PERMITTEE NAME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

Facility !Name / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRIMARYIFACILITY: LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: !EXELON GENERATION COHPANY,LLC-CLIENT ID NO. 147686 OMB NO. 2040-0004.

ADDRESS:200 EXELON WAY Southeast Region Facsimile IKENNETT SQUARE, PA 19348

• Sample during discharge from drain valv SITE LOCATION: 3146 SANATOGA ROAD, POTTSTOWN, PA 19464 MO DAY associated with the circulating water a MUNICIPALITY: LIMERICK TOWNSHIP 07 31 Turbine Unit 2.

COUNTY: MONTGOMERY. NOTE: Read instructions before completing this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUM MINIMUM AVERAGE UNITS INST MONTHLY UNITS MONTHLY DAILY Samp e No FLOW Measurement Discharge Discharge XXXX XXXX XXXX Permit MONITOR MONITOR Requirement REPORT REPORT MGD XXXX XXXX XXXX XXXX CALCULATED Sample TOTAL SUSPENDE.D Measurement XXXX XXXX XXXX Mo Discharge No Discharge SOLIDS Permit MONITOR REPORT MONITOR REPORT

, Requirement XXXX XXXX Xxxx Y.XXXX MG/L GRAB Sample TEMPERATURE Measurement XXXX o Discharge Permit INST. MAX TOA

~Sample Requirement apeNo XXXX XXXX XXXX XXxX XXXX 110 OF I*-S Discharge TOTAL RESIDUAL Measurement XXXX XXXX XXXX DXh OXIDANTS Permit Requirement XXXX XXXX XXXX XXXX XXXX 0.2 MG/L GRAB Sample Measurement Mo Discharge N No Discharge Permit Requirement XXXLX XXXXX XXXX INST. MAX STD

________ 6.0 XXXX 9.0 UNITS *GRAB Sample Mesrmn x Xy YX NMo Discharge No Discharge SPECTRUS CT1300 Measurement Permit Reoui rement XXXX XXXX XXXX XXXX 0.2 0.4 MG/L GRAB I Sample Measurement Permit

___FRequirement Sample Measurement Permit Requirement IkAIIITiTI, RINCI rAl. rFXI*I}TiV*;FFTCEF I CERTIFY UNDER PENALTY OF LAW THAT I HAVE PERSONALLY EXAM-INEDANt TELEPHONE DATE Christopher H. Mudrick, V.P. A14 FAMILIAR WITH THE INFORIMATION SUBMITTED1HEREIN ANtDBASED OH NY Edward W. Callan Limerick Generating Station INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAINING Plant Manager THE INFORMATION, I BELIEVE THE SU3MITTED INFORMATION IS TRUE. (I' ACCURATE AND COMPLETE. I AN AWARE THAT THERE ARE SIGNIFICANl PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE r.610 718-2000 08 08 25 POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33 u.s.c. §1319- (Penalties under these SLatutes may include fines up TYPE OH PRINT to $10,000 and or maximum imprisonment of between 6 months and 5 SIGNATURE OE EC AREA y'ears) OFFICER OR AUTHORIZED AGENT CODE NUMBER YEAR MO DAY all attachments here)

COMMENT AND EXPLANATION OF ANY VIOLATIONS (Reference PERMIT EXPIRES 3/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Rev. 9-88) previous edition may be UseO. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED) Page 7 of 13 Re 30 (CD05WQM)256-13F

DISCHARGE! MONITORING REPORT SUPPLIMENTAL FORM For the MONTH July 2008 LIMERICK GENERATING STATION Limerick Township Montgomery County I

DAY IMGI3D FLOW I-TEMP-F, TSS mg/i 1TRO MI Spectrus.CT-l130oo

,mg/I pH SD 2

3 I

4 5

6 7 7 8 I 101 11 12 13 14 15 16 17__

18 19 20 21 22 23 I _ _

24 25 26 27 28 29 30 31 _ _ F _ _ _ _ _ _ _ _ _ _ _ __.....

Avg! No Discharge XXX No Discharge XXX No Discharge XXX IYI*A: No *ischlarge I No Discharge 1No Discharge INo Discharge No Discharge No Discharge MIN [ xxxI xxx xxxxxx I Laboratory NamE REMARKS:

N/A In House?

XXX Yes No Discharge Signature: law (C610) 718"--2500 Telephone: /610) 71 Er-2500 NPDES permit PA0051926 for outfall 005

PERIITTEE NAME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

Facility[Name / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRINARY "FACILITY: LIMERICK GENERATING STATION FOR4 APPROVED.

CLIENT: 1EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 06006,007, 008, 009 OMB NO. 2040-0004.

ADDRESS:'200 EXELON WAY PERMIT NUMBER I DISCHARGE NUMBER Southeast Region Facsimile IKENNETT.SQUARE, PA 19348 MONITORING PERIOD Sample any one of these outfalls.

SITE LOCATION: 3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YEAR I MO I DAY I TO 1ERJMl DAY MUNICIPALITY:

COUNTY:!

LIMERICK TOWNSHIP MONTGOMERY J08 07 01 08 Re7 iL r NOTE: Read instructions before completing this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS Sample C-BIOCHEMICAL Measurement XXXX XXXX XXXX XXXX NR OXYGEN EMkND Permit REPORT I PER 1 (5-DAY) Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAa Sample CHEMICAL OXYGEN Measurement XXXX XXXX XXXX XXXX NR DEMAND I Permit REPORT 1 PER 1 Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample

, Measurement XXXX XXXX XXXX XXXX NR O Permit REPORT 1 PER 1 Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample Measurement: XXXX XXXX XXXX XXXX NR pH ' Permit REPORT STD 1 PER 1 Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. UNITS YEAR GRAB Sample

'rOTAL. SUSPENDEID Measurement XXXX XXXX XXXX XXX NR SOLIDS (TSS) Permit REPORT 1 PER 1 Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MGOL YEAR GRAB Sample TOTAL KJELDAHL Measurement XXXX XXXX XXXX XXXX NR NITROGEN (TKN) Permit REPORT 1 PER 1 Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB I Sample TOTAL P1OSPIORUS Measurement XXXX XXXX XXXX XXXX NR Permit REPORT 1 PER 1

[ Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample IRON (DISSOLVED) Measurement XXXX XXXX XXXX XXXX MR Permit REPORT 1 PER 1

_ _ _ Requirement XXXX MXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB

Mm

, -mTI"T. Fm'-A 5tXFJU',T5VOP FICFR I CERTIFY UNDER PENALTY OF LAW TEAT I HAVE PERSONALLY EXAMINED ANL TELEPHONE DATE Christopher H. Mudrick, V.P. AN4FAMILIAR WITH THE INFORMATION SUBMII'FED HEREIN AND BASED ON MYEdward W. Callan Limericki Generating Station INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAINING Plant Manager THE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUE ACCURATE AND COMPLETE. ' I AM AWARETHAT THERE ARE SIGNIFICANT PENALTIES FOR SUBMITTPING FALSE INFORMATION, INCLUDING TE 6610 718-2000 08 08 25 POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AN' 33Ud U.S.C. §1319. (Penalties under these statutes may include tines up TYPE OR PFINT to $10,000 and or maximum imprisomnent of between 6 months and 5SIGATURE OF PRINCIPAL EXECUTIVE AREA years) OFFICER OR AUTHORIZED AGENT CODE NUMBER YEAR MO DAY PERMIT EXPIRES 33/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Rev 9-88) previous edition may be Used. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED) Page 8 of 13 Re 30 (CDO5iWQM)256-13G

biSCH.kMt'vlNITORING REPORT SUPPLIMENTAL FORM LIMERICK GENERATING STATION For the MONTH July 2008 Limerick Town~ship iviontgomery County

- - - I.

n',g/ CUPl U&P -------

NH34

4. --

Phos Iron(dis)

Ifla,11 STD lbsT5 ma/1 ma/I '

2 3

4 _

7 11 12 _

13

.,4 16 19 I 20 21 22 23 '

24 25 26 27 28 '

29 30

.31 Avg M~AXI IXxxx NR xxx NR tx 1-x XXX NR Ix XXX NR 4

XXX NR

+

XX'K NA YY*Z NR MiN xx X xxx xxx____ ____ ____

Lauoratory Nar)) /1 M.J. Reider ASSOC., Inc. In House? Yes Signature:

RIEMARKS: Ak' Telephone: (610) 7Ti-2500 NPDES permit PA0051926 for outfalls 006, 007, 008. 009

PERMITTE E NAME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

Facility Name / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRIMARY FACILITY: LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: ?EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 012 OMB NO. 2040-0004.

ADDRESS:1200 EXELON WAY PERMIT NUMBER DISCHARGE NUMBER Southeast Region Facsimile

!KENNETT SQUARE, PA 19348 MONITORING PERIOD Sample daily during discharge from SITE LOCATION: 3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YEAR I MO DAY I TO I YEAR i MO I DAY dredging. A composite during dredging.

MUNICIPALITY: LIMERICK TOWNSHIP 08 07 01 08 07 COUNTY:I MONTGOMERY NOTE: Read instructions before completing this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUN4 MINIMUM AVERAGE MAXIMUM DAILY MONTHLY DAILY UNITS INST ANNUAL UNITS Sample No No F Measurement Discharge Discharge XXXX XXXX XXXX

! Permit MONITOR MONITOR

_ _ Requirement REPORT REPORT MGD XXXX XXXX XXXX ESTIMATED

_YXX Sample TOTAL SUSPENDED easurement No Discharge No Discharge SOLIDS I Permit 13id o 5h Ycga MONITOR REPORT 100 G/L

,..______________ Requirement XXXX XXX XXXX XXXX

• COMPOSITE I Sample OIL AND O IGREAsE Measurement XXLXX XXXX XXXX No Discharge No Discharge Permit MONITOR REPORT MONITOR REPORT

, Requirement XXXX XXXX XXXX XXXX MG/L GRAD Sample No Discharge No Discharge IRON, DISSOLVED Measurement N Permit MONITOR REPORT MONITOR REPORTCOMPOSITE

_ _Requirement xy.xx XXXX XXXX XXxX MGMLOCOMPOSRER Sample No Discharge No Discharge IRON. TOTAL Measurement XXXX XoXXX XXXX (3rdst5th Ye.S) Permit MONITOR REPORT

_ Requirement XXIXX XXXx XX=X XXXX 7.0 MG/L COMPOSITE I Sample pasmpe No Discharge Measurement XXXX XXXX XXXX No Discharge PH i Permit MONITOR MONITOR STD

_ Requirement XXXX XXXX XXXx REPORT XXXX REPORT UNITS GRAB TOTAL SUSPENDED Sample i Measurement XXXX Mo Discharge No Discharge Sls SOISPermit nd Yau Imedm I ~~Requ iremen t X.XXX XXXX X.kX XXXMG/LCMOIT MONITOR REPORT MONITOR REPORT Sample No Discharge No Discharge IRON [TOTAL Measurement xxxx XXXX XXXX lst211d mid Yems%Permit MNIORREO ermit MONITOR REPORT MONITOR REPORT 1_Requirement XXXI XXXX XXXX XXXX MG/L COMPOSITE NAMEL/TTLF PRI1CPAL

2E11TIIIE OFFICER I CERTIFY UNDER PENALTY OF LAW THAT I HAVE PERSONALLY EXAMINED AND TELEPHONE DATE Christopher H. Mudrick, V.P. AM FAMILIAR WITH THE INFORMATION SUBM17PED HEREIN AND BASED ON MY Edward W. Callan Limerick Generating Station INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OHTALNING Plant Manager THE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUE, ACCURATE AND COMPLETE. I AM AWARE THAT THERE ARE SIGNIFECAN'l PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE_ 610 718-2000 08 08 25 POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33 ,il U.S.C. §1319. (Penalties under these statutes may include fines up TYPE ON PRINT tO $10,0 0 and or maximu imprisonment of between 6 months and 5 SIGNATURE OF PRINCIPAL EXECUTIVE AREA yea rs) OFFICER OR AUTHORIZED AGENT CODE NUMBER YEAR MO DAY COMMENT AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)

PERMIT EXPIRES 3/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM 1-40 WHICH MAY NOT BE USED) Page 9 of 13 Re 30 (CD0 WOM)256-13H

PERMITTEE i NAME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

Facility Name / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRIMARY FACILITY: LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: IEXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 013, 014; 015, 016, 017, 018, 019, 01 OMB NO. 2040-0004.

ADDRESS:1200 EXELON WAY PERMIT NUMBER DISCHARGE NUMBER Southeast Region Facsimile IKENNETT SQUARE, PA 19348 MONITORING PERIOD Sample any one of these outfalls.

SITE LOCATION: 3146 SANATOGA ROAD, POTTSTOWN, PA 19464 1 YEAR I MO DAY TO I YEAR I MO I DAY I LIMERICK TOWNSHIP 08 IUNICTPALITY:

07 017 08 1 07 1 31 mi ThTV: MONrcODMERY hefcorae nmnlstinc, this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS C-BIOCHEMICAL sample Measurement XXXX XXXX LXXX XXXX NR OXYGEN DEMAN Permit REPORT 1 PER (5-DAY) Requirement XXXX XXXX XXXX XXXX xxxx DAILY MAX. MG/L YEAR GRAB Sample CHEMICAL OXYGEN Measurement XXXX XXXX XXXX XXXX NR DEMAND Permit REPORT 1 PER 1 Requirement XXXX XY.XX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample I Measurement XXX\X 'XXXX XXXX XXXX NP.________

OIL AND GREASE Permit Permit REPORT 1 PER 1

_ Requirement XXAX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB I Sample pMMeasurement XXXX Y*XXX XXXX XXXX NR i Permit REPORT STD 1 PER 1

_ Requirement XXXX XXXX XXxX XXXX XXXX DAILY MAX. UNITS YEAR GRAB Sample TOTAL SUSPIENDE*I) Measurement XXXX XXXX XXXX XXXX NR SOLIDS (TSS) Permit REPORT 1 PER 1 Requirement: XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample TOTAL KJELDAHL Measurement XXXX XXXX XXXX XXXX NR NITROGEN (TKN) Permit REPORT 1 PER 1 I Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample Measurement XXXX XXxX XXXX XXXX NR TO.AL PHOSPHORUS Permit REPORT 1 PER 1 Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample IRON (DISSOLVED) Measurement XXXX XXXX XXXX XXXZ NR I Permi t REPORT 1 PER 1

_ Requirement XXXX xxxx XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB e-KE/ITITF I tI IIAL rxEUTir OFFICER I CERTIFY UNDER PENALTY OF LAW THAT I HAVE PERSONALI,Y EXAMINED AND . TELEPHONE DATE Christopher H. Mudrick, V.P. AM FAMILIAR WITH THE INFORMATION SUEMITTED HEREIN AND BASED ON MYEdward W. Callan Limerick Generating Station INQUIRY OF THOsE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAINING THE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUE, Plant Manager ACCURATE AND COMPLETE. I AM AWARETHL\T THERE ARE SIGNIFICANq PENALTIES FOR SUBMIT~TING FALSE INFORMIATION, INCLUDING POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33 THE ~y 1 1-2000 08 08 25 U.S.C. §1319. (Penalties under these statutes may include fines up AR T E - RNT to$10 and or maximum imprisonment of between 6 months and 5 SIGNATURE OFATORIED EENT COE years) OFFICER OR AUHRZDAETCODE YEAR NUBER HO DA'Y COMMENT AND EXPLANATION OF ANY VIOLATIONS I PERMIT EXPIRES 3/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED) Page 10 of 13 Re 30 (CD05WOM)256-13R

DISCHARGE! MONITORING REPORT SUPPLIMENTAL FORM For the MONTH July 2008 LIMERICK GENERATING STATION Limerick Towhship Montgomery County DAY CBODI § COD P J , O&G PH TSS. [ NH3N Phos Iron(dis) rg/i mg/I j 911mgI STD T mg/I r *ni g1 m 2

3 '

4 5

6 I 7

8 9I 10 11 12 13 14 '

15 16 17 18 19 20

.... I _......

21 22 23 24 25 26 27 28 29 30 31 Avg XXX XXX XXX XXX xxX XXX XXX xxx MAX NRI NR NR NR NR NR NR NR XXx XXX XXX XXX XXX XXX XXX XXX MIN

-J/7 Laboratory NamE M.J. Reider Assoc., Inc. In House? Yes Signature:

REMARKS:! Telephone: (MO) 718'21'00 NPDES permit PA0051926 for outfalls 013, 014, 015, 016, 017, 018, 019, 030

PERMITTEE NAME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

Facility Name / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRIH1ARY!FACILITY: LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: iEXELON GENERATION COMPANY, LLC-CLIENT ID NO.

ADDRESSj2O0 EXELON WAY IKENNETT SQUARE, PA 19348 147686

-t PA0051926 PERMIT NUMBER MONITORING I

PERIOD 021 DISCHARGE NUMBER I

1*

OMB NO. 2040-0004.

l Southeast Region Facsimile Cooling tower drift loss, etc.

SITE LOCATION: 3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YA M DAYI TO YEAR MO DAYI MUNICIPALITY: LIMERICK TOWNSHIP 08 I 0o7 1 0 I 08 i o7 I COUNTY: MONTGOMERY NOTE: Read instructions before com leting this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS Sample C-BIOCHFMICAL SDmple Measurement XXXX XXXX Mo Discharge OXYG Permit REPORT 1 PER 1

_5-DA_ _ _ Requirement XXXX XXXX XXXX XXRA XXXX DAILY MAX. MG/L YEAR GRAB Sample CHEMICA OXYGEN Measurement XXXX XXXX XXXX MXXX No Discharge DEMAND Permit REPORT 1 PER 1

__ Requirement XXXX XXXX XXXX XXXX XXXx DAILY MAX. MG/L YEAR GRAB Sample OIL AND GREASE Measurement XXXX XXXX No Discharge Permit REPORT 1 PER 1

_ Requirement XXXX XXXX XXXLX XXXX XXX DAILY MAX. MG/L YEAR GRAB Samp I e HMeasurement X XXXX XXX XXXX o Discharge pH Permit REPORT STD 1 PER 1 Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. UNITS YEAR GRAB Sample TOTAL SUSPENDED Measurement XXX XXXX XXIX XXXX No Discharge SOLIDS (TSS) Permit REPORT 1 PER 1 I Requirement XXXX XMXX XXX XMXX XXXX DAILY MAX. MG/L YEAR GRAB Sample TOTAL KJiELDAHL Measurement XXXXX XXMX MMXX XXXX No Discharge NITROGEN (TKN) Permit REPORT I PER 1 Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample TOTAI Measurement XXXX XXXX XXXX XXXX No Discharge TOA-PHOSPHORUS -r -

Permit REPORT 1 PER 1

_ Requirement XXXX XXXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB Sample Measurement XXXX XXXX XXXX XXXX No Discharge IRON (DISSOLVED) Permit REPORT I PER I

, Requirement XX XXX XXXX XXXX XXXX DAILY MAX. MG/L YEAR GRAB hIME:T:ThE 0..; INIPALEX.E.C11T:VE OFFICER I CERTIFY UNDERPENALTY OF LAWTHAT I HAVEPERSONALLY EXAMINED AND TELEPHONE DATE Christopher H. Mudrick, V.P. AN FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN AND BASED ON Ny Edward W. Callan Limerick Generating Station INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAINING Plant Manager THE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUE, ACCURATE AND COMPLETE. I AM AWARE THAT THERE ARE SIGNIFICANT

~POSSIBILITY PENALI.TES U.S.C. §1319.

FOR SUBMITTING FALSE INFORMATION, INCLUDING OF' PINE AND IMPRISONMENT SEE 18 U.S-C. §1001 AND 33 (Penalties under these statutes may include fines up THE 610 718-2000 08 08 25 TYPE OR PRINT to $10,000 and or maximum imprisonment of between 6 months and 5 SIGNATUR OF PR3ICPAL EXECUTIVE AREA

,years) OFFICER OR AUTHORIZED AGENT CODE NUMBER YEAR 1O DAY COUMMEhNT ANIL EAXLANATIUN UF ANY VIOLATIUNS (Reference all attachments here)

PERMIT EXPIRES 3/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Hev. 9-88) previous edition may be Used. (REPLACES EPA FORM T- 40 WHICH MAY NOT BE USED) Page 11 of 13 Re 30 (CD05W*M)256-13R

PERMITTEE NA.HE ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

FacilinyýName / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRIMARY FACILITY: LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 020 OMB NO. 2040-0004.

ADDRESS:200 EXELON WAY PERMIT NUMBER DISCHARGE NUMBER Southeast Region Facsimile SITE LOCATION: 3146SAATG ROAD, POTSTOWN, PA 19464 tKENNETT SQUARE, PA 19348 YEAR IMO IDAY I TO I YEARIDA MONITORING PERIOD

• Sample daily during the dischari cooling towers through 020.

MUNICIPALITY: LIMERICK TOWNSHIP 08 1 07 01 J 08 I 07 I 31 COUNTY: I MONTGOMERY NOTE: Read instructions before completing this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUM MINIMUM AVERAGE MAXIMUM DAILY MONTHLY DAILY UNITS INST - MONTHLY UNITS Sample No No Measurement Discharge Discharge XXXX4 XXXX XXXX FLOW I Permit MONITOR/ MONITOR/

_ _ Requirement REPORT REPORT MGD XXXX XXXX XXXX XXXX

• CALCULATED Sample TOTAL SUSPENDED Measurement XXXX XXXX XXXX No Discharge No Discharge SOLIDS I Permit MONITOR/

__ Requirement XXXX XXXX XXXX XXXX REPORT 100 MG/L

• GRAB Sample MeaSurement XXXX XXXX No Discharge XXXX No Discharge pH Permit INST. MAX.

i_ Requirement xxxx XXXX xxxx 6.0 XXXX 9.0 MG/L

• GRAB Sample

'Measurement Permit

_ ___ _ Requirement Sample Measurement _1 Permit I Requirement Sample Measurement

~Permit Requirement Sample Measurement Permit Re uirement Sample Measurement Permit

_____Requirement N;.E' TrTLE RIXICICALXFCST7Vr,IFFICER I CERTIFY UNDERPENALTY OF LAWTHAT I HAVEPERSONALLY EXAMINED A11I TELEPHONE DATE Christopher H. Mudrick, V.P. AM FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN AND BASED ON MYEdward W. Callan LimericklGenerating Station INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAININ Plant Manager TIlE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUES ACCURATE AND COMPLETE. I AM AWARETHAT THERE ARE SIGNIFICANT POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33\

U.S.C. §1319. (Penalties under these statutes -ayinclude fines up (.J TYPE OR PRINT to $31,000 and or maximum imprisonment of between 6 months and 5 OF PRCIP L EXECUTIVE AREA years) OFFICER OR AUTHORIZED AGENT CODE NUMBER YEAR MO DAY COMMENT IAND FXPLANATION OF ANY VIOLATIONS (Reaerence all attachlments hlere)

PERMIT EXPIRES 3/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED)

I3 W3 Page 12 of 13 Re 30 (CDG5WQM)25&-1

DISCHARGE, MONITORING REPORT SUPPLIMENTAL FORM For the MONTH July 2008 LIMERICK GENERATING STATION Limerick Township Montgomery County 020 021 DAY SGPD,ý-

FLOW. - SuspSolids[

g/ ,TEMP F9 , jd STDl pH CBODSI--CODt iiI~ Io&Gq.g pH STDQ j - A/ j TSS NH3N m/I 1 Phos jgI I. Iron(dis) 2 3

4 6

7 8

9

~18 __ _ _ __!_ _ _ _ __ _ _ _ _ _ _ _ _ _

10 11 12 13 14 15 16 17 20 21 __ _ _ _ _ _ __ _ _

22 _ _ _ __ _ _ _ _

23 __ __ _ _ _ _

3024 __ _____ ____ ____ ____ ____ ____ ____ ____ ____

Avg No Discharge No Discharge I No Discharge I No Discharge XXX xxx XXX XXX XXX XXX XXX xxx MAX No Discharge XXX No Discharge No Discharge] No Discharge No Discharge No Discharge No Dischargel No Discharge No Discharge No Discharge INo Discharge MIN NoDischarge XXX XXX No Discharge XXX XXX XXX XXX XXX 4XX XXX XXX Laboratory NamE M.J. Reider Assoc., Inc. In House? Yes Signature:

REMARKS: Telephone: (6'10) 71z2.500 NPDES permit PA0051926 for outfall 020,021

PER1,IITTEE NZ&E ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)

Facility Name / Location if different) DISCHARGE MONITORING REPORT (DMR)

PRIMARY [FACILITY: LIMERICK GENERATING STATION FORM APPROVED.

CLIENT: iEXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 I I 023 IOMB NO. 2040-0004.

ADRESS00EXELON WAY PERMIT NUMBER j DISCHARGE NUMBER Southeast Region Facsimile

,KENNETT SQUARE, PA 19348 MONITORING PERIOD

• Sample during discharge from drain valv SITE LOCATION: 3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YEAR MO 1 I DAY I TO 1 YEAR I NO I DAY associated with the circulating water a MUNICIPALITY:

COUNTY: I LIMERICK TOWNSHIP MONTGOMERY

[ 08 107 1 NOT1E: Read Turbine Unit 1.

instr-uctions before completing this form Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS MINIMUM AVERAGE MAXIMUM DAILY AVERAGE MAXIMUM MONTHLY DAILY UNITS INST MONTHLY UNITS Sample No No I Measurement Discharge Discharge XXXx XXXx XXXX FLOW Permit MONITOR MONITOR

_ _ Requirement REPORT REPORT MGD XXXX XXXX XXXX XXXX MEASURED Sample TOTAL SUSPENDED measurement XXXX XXXX XXXX No Discharge No Discharge SOLIDS

• Pe-r-mit MONITOR REPORT

_ _Requirement XXXX XXXX XXXX XXX 100 MG/L GRAB Sample TOTAL RESIDUAL Measurement XXXX No Discharge OXIDANTS Permit

_ Requirement XXXX XXXX XXXX XXXX XXXX 0.2 MG/L GRAB Sample pxNo pH iMeasurement XXXX XXXX Discharge XKXXX No Discharge Permit INST. MAX STD

_ Requirement XXXX XXXX XXXX 6.0 XXXX 9.0 UNITS GRAB I Sample IleasuramentL No Discharge No Discharge CT1300 Permit SPECTRUS 1 Perinit

_ _ Requirement XXXX XXXX XXXX XXXX 0.2 0.4 MG/L GRAB Sample Measurement I Permit

_ _ Requirement Sample I (Measurement

! Permit

_ _ Requirement Sample Measurement Permit Requirement NIAý'T;TLF 'F'TEPAT. R.CRtTn'E WFF1CER I CERTIFY UNDERPENALTY OF LAWTHAT I HAVEPERSONALLY EXAMINED AND TELEPHONE DATE Christopher H. Mudrick, V.P. AM FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN AND BASED ON MYEdward W. Callan Limerick Generating Station INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAINING Plant ManagerN-THE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUE, ACCURATE AND COMPLETE. I AM AWARETHAT THERE ARE SIGNIFICANI PENALTIES FOR SUBMITTPING FALSE INFORMATION, INCLUDING THE 61-1-00 0 8 2 POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33 _12 U.S.C. §1319, (Penalties under these statutes may include fines up Y/J(

TYPE OR PRINT to $10,000 and or maximum imprisonment of between 6 months and 5 SIGNATURE OF PR NCIPAL EXECUTIVE AREA years) OFFICER OR AUTHORIZED AGENT CODE NUMBER YEAR MO DAY COMMENTIAND EXPLIANATIO'I OF aIY VIOLATIONS PERMIT EXPIRES 3/31/2011 SUBMIT RENEWAL BY 9/30/2010 EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED) Page 13 of 13 Re 30 (CDO5WOM)256-13K

I DISCHARGE MONITORING REPORT SUPPLIMENTAL FORM Forthe MONTH July 2008 LIMERICK GENERATING STATION Limerick Township Montgomery County DAY ' FLOW , TSS.1 TROI 1, pH 1HSpectrus CT.1300 11 MGDj mg/ ____STD mgA~

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24 25 26 27 28 29 30 31 AvgI No Discharge NoDischargej XXX xxx No Discharne MAX No Discharge No Discharge No Discharg eI No Discharge I No Discharge I4 MIN xxx xxx j xxx No DischarcgeI xxX

-J - 4 . 7,/2 Laboratory Name N/A Yes J ________________ I Signature: E t L REMARKS: Telephone: (610) 71T-2500 NPDES permit PA0051926 for outfall 023

3800-FM-WSFRO189 612006 COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL PROTECTION BUREAU OF WATER STANDARDS AND FACILITY REGULATION SUPPLEMENTAL LABORATORY ACCREDITATION FORM' Permittee Name: Limerick Generating Station Environmental Laboratory Address: 3146 Sanatoga Road Pottstown, PA 19464 PERMIT NUMBER MONITORING PERIOD Year/Month/Day PA 0051926 2008 July 01 TO 2008 July 31 PARAMETER ANALYSIS METHOD ,LAB NAME, LAB IDNUMBER2 Spectrus CT-1300 GE Methyl Orange LGS Environmental Lab 46-01028 pH Electrometric LGS Environmental Lab 46-01028 Total Residual Oxidants Amperometric Titration LGS Environmental Lab 46-01028 Cadmium EPA 200.7 M.J. Reider Associates, Inc. 06-00003 Total Suspended Solids SM2540D M.J. Reider Associates, Inc. 06-00003 Oil and Grease EPA 1664 M.J. Reider Associates, Inc. 06-00003 Phosphorous SM4500P-E M.J. Reider Associates, Inc. 06-00003

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+ + 4 1~ 1- t I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted.. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibly of fine and imprisonment for knowing violations.

Signature of Principal Executive Officer or Name[Title Principal Executive Officer Phone: (610) 718-2000 Authorized Ageret--.

Edward W. Callan / Plant ManaQer Date: 08/25/08