ML082470532

Discharge Monitoring Report (DMR) - July 2008

ML082470532
Person / Time
Site:	Limerick
Issue date:	08/25/2008
From:	Callan E W 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 DRBC USNRC Document Control Desk w/ attachment w/ attachment w/attachment

(~4~

PERMITTEE NAME ADDRESS (include FacilitylName

/ Location if different)

PRIHARYý FACILITY-:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)CLIENT: EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147684 ADDRESS!200 EXELON WAY FORM APPROVED.OMB NO. 2040-0004.

Southeast Region Facsimile* To calculate Credits see Condition No. 14 on page 33.iKENNETT SQUARE, PA 19348 SITE LOCATION:

3146 SANATOGA ROAD, POTTSTOWN, PA 19464 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 Measurement XXXX XX3LX XXXX XXXX 0.1 I 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 Measurement XXXX XXXX XXXX <0.05 <0.05 S PECTRUS CT1300 Permit 0.2 0.4 Requirement XXXX XXXX XXXX XXXX MG/L l/WEEK GRAB Sample TEMPERATURE Measurement XXXX XXXX XXXX 79 82 (RIVER INTAKE) Permit (RIVER________

Peremt xMONITOR REPORT MONITOR REPORT F!Requirement, XXXX XXXX XXXX XXXX OF 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 Permit XXXI XXX0 XXXX <0.005 <0.005 C A D M I U M , [ T O T A L R e q u i r e m e n t x X XM O I R R E R T O N O R E P T_____ Sample XXXI XXXX xX XXXX MONITOR REPORT MONITOR REPORT MG/L 2/MONTH 24 HC EAMF,'TIT.E PP]N ITAL 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 EPA FORM 3320-1 (Rev. 9-88) previous eoition may be Used.Re 30 (CD05WOM)256-13 PERMIT EXPIRES 3/31/2011 (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED)SUBMIT RENEWAL BY 9/30/2010 Page 1 of 13 DISCHARGE MONITORING REPORT SUPPLIMENTAL FORM LIMERICK GENERATING STATION Limerick Township Montgomery

'County For the MONTH July 2008 DAY FLOW .JTSS7 [TEMP(elff)I TRO j pH 1 Spectrus CT 1300, fCadmium, Total TEMP(in)MOD m/ F , *[ , ,, STD, ,m/ m/ F 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 MAX 10.02 NR 87.9 MIN xxx xxx xxx Laboratory Name* M.J. Reider Asso REMARKS: TSS is NET TSS NPDES permit PA0051926 for outfall 001 XXX XXX<0.05<0.005 78.7 I 4 4 4 0.12 8.63<0.05<0.005 81.8 XXX 8.21 [ XXX XXX XXX;., Inc.In House? Yes Signature: Telephone:

(610) 7- 8:2500 PERMITTEE NAME ADDRESS (include FacilityiNaine

/ Location if different)

PRfIgARYIFACILITY:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)CLIENT: IEXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 14P 201 ADDRESS 200 EXELON WAY PERMIT NUMBER DISCHARGE NI IKENNETT SQUARE, PA 19348 MONITORING PERIOD SITE LOCATION:

3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YEAR I MO DAY TO I YEAR I MO FORM APPROVED.OMB NO. 2040-0004.

Southeast Region Facsimile MUNICIPALITY:

LIMERICK TOWNSHIP 081 07 01 I I 08 1 07 NOTE: R eDAY 31 , ead instructions before completing this form COUNTY:!MONTGOMERY 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 F 261342 1038500 =X XXXX XXXX FLOW !Measurement 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 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 AWARE THAT THERE ARE SIGNIFICANT 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 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"zr.COMMENT IAND EXPLANATION OF ANY VIOLATIONS EPA FORM 3320-1 (Rev. 9-88) pfevious edition may be Used.Re 30 (CDO5WOM)256-13A PERMIT EXPIRES 3/31/2011 (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED)SUBMIT RENEWAL BY 9/30/2010 Page 2 of 13 PERMITTEE NAM, E ADDRESS (include FacilitylName

/ Location if different)

PRIMARYIFACILITY:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)CLIENT: 1EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 MP 301 ADDRESS1200 EXELON WAY PERMIT NUMBER DISCHARGE NUMBER!KENNETT SQUARE, PA 19348 MONITORING PERIOD SITE LOCATION:

3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YEAR MO I DAY TO I YEAR M MO I DAY l FORM APPROVED.OMB NO. 2040-0004.

Southeast Region Facsimile* During discharge of wastewater f laundry drain collection systen MUNICIPALITY:

LIMERICK TOWNSHIP 08 1 07 01 COUNTY:i MONTGOMERY 08 107 1 31 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 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 yOOO XXXX 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 LAW THAT I HAVE PERSONALLY EXAMINED AND TELEPHONE DATE Christopher H. Mudrick, V.P. AN, FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN AND BASED ON MY Edward W. Callan LimericklGenerating, Station INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAINING Plant Manager4.THE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUE, 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)EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM T-Re 30 (CDO5WOM)256-13B PERMIT EXPIRES 40 WHICH MAY NOT BE USED)3/31/2011 SUBMIT RENEWAL BY 9/30/2010 Page 3 of 13 DISCHARGE MONITORING REPORT SUPPLEMENTAL FORM LIMERICK GENERATING STATION Limerick TowJnship Montciomerv

'Countv For the MONTH July 2008-r_ -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 4 180,000 210,000 0 5 __ 180,000 0 ______________

________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 _ 220,000 0 17 F 380,900 0 18 I 149,000 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 MAX 1,038,500 24 MIN XXX XXX Laboratory Name: M.J. Reider Assoc., Inc.for O&G REMARKS: See attached for OL NPDES permit PA0051926 for outfall 201,301 6.7 16.822 NR NR 8.0 31,464 NR NR XXX XXX ... NYX XXX In House? Yes itfall 201 TSS exceedance.

Signature:

Telephone:

~(91- ) :A 7-250 0 PERMITTEE NAME ADDRESS (include Fcini, / Location it ditterenrý PRIMARY!FACILITY:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)FORM APPROVED.MP 401 OMB NO. 2040-0004.

CLIENT: ! EXELON GENERATION COMPANY,LLC-CLIENT ID NO. 147686 PA0051926 ADDRESS:200 EXELON WAY PERMIT NUMBER I I DISCHARGE NUMBER 1 KENNETT SQUARE, PA 19348 MONITORING PERIOD SITE LOCATION:

3146 SARATOGA ROAD, POTTSTOWN, PA1946 I M I DAY I TO YEA MO I DAYR Southeast Region Facsimile* Sample shall be collected during the di from the overflow location at the pond.* Sample the spray pond.,ww-iona bafara rccm~lstinc this form MUNICIPALITY:

LIMERICK TOWNSHIP 1 08 1 07 1 017 081 0 13 ml9[rrdmV*

I RY_____________

._____________________

j 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 MLieasurement 10685 14400 X-XX XXXX XXXX FLOW Permit MONITOR/ MONITOR/Requirement REPORT REPORT GPD XXXX XXXX XXXX XXXX MEASURED Sample TOTAL PII OSHORUS 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 P Peermi t_ _Requirement_

Sample-Measurement Permit_ _ _ Requirement Sample Measurement Permit_______Requirement NeEl/TITLE RNCIPAIL ECEtMTIVYE 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 SUBM1PTED HEREIN AND BASED ON MY Edward 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 AWARE THAT 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)EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM T-Re 30 (CD05WQM)256-13C PERMIT EXPIRES 3/31/2011 40 WHICH MAY NOT BE USED)SUBMIT RENEWAL BY 9/30/2010 Page 4 of 13 DOSCHARGE MONITORING REPORT SUPPLIMENTAL FORM LilvIERICK GENERATING STATION Limerick Townsrip Montgomery

'County For the MONTH July 2008[K-'Al. r iLQ'VV Pfiisphorous CIPP Tolal 3 14400 4 14400 6 14400 7 11 14400 0.22 8 14400" i1440 _o ______10 14400 10 14400 2 1 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 REMARKS: NPDES permit PA0051926 for outfall 401.J. Reider Assoc., Inc.In House? N/A Signature:

Telephone:

T610) 718-2500 PERNITTEE NAIME ADDRESS (include i Facility iName / Location if different)

PRI11ARY IFACILITY:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)CLIENT: 1EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 002, 004, 022 ADDRESSj200 EXELON WAY PERMIT NUMBER DISCHARGE NUMBER iKENNETT SQUARE, PA 19348 MONITORING PERIOD SITE LOCATION:

3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YEAR I MO I DAY I TO I YEAR I MO I DAY FORM APPROVED.OMB NO. 2040-0004.

Southeast Region Facsimile* To calculate Credits see Condition No. 14 on page 33.MUNICIPALITY:

LIMERICK TOWNSHIP 08 10 01 N08 1 07 1 e NOTE: Read instructions before completing this form COUNTY:!MONTGOMERY Parameter QUANTITY OR LOADING QUALITY OR CONCENTRATION NO. FREQUENCY SAMPLE EX OF TYPE ANALYSIS AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS Sample C-BIOCHE MICAL Sml IOXY EN 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 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 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 AND BASED 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 AM4 AWARE THAT THERE ARE SIGNIFICANq PENALTIES FOR SURMIT'TING FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE 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 EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used.Re 30 (CD0IWQM)256-13D I PERMIT EXPIRES 3/31/2011 (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED)SUBMIT RENEWAL BY 9/30/2010 Page 5 of 13 DISCHARGE MONITORING REPORT SUPPLIMENTAL FORM LIMERICK GENERATING STATION Limerick Township Montgomery P2ounty I For the MONTH July 2008 DAY CBOGJ -.COP j O&G t:pH 15 NH3NI.hos.I!on~dis)

______ mg/I mg/ STM__ _ ___ _ _ _ _ _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.REMARKS: NPDES permit PA0051926 for outfalls 002, 004, 022 In House? Yes Signature:

Telephone:

!610) 718/-2500 (610) 71 W-2500

NAME ADDRESS (include FacilityiName

/ Location if different) i PRTIýIkRYIFACILlTY:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)CLIENT: !EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 FORM APPROVED.l 003 OMB NO. 2040-0004.

PA0051926 ADDRESSý200 EXELON WAY PERMIT NUMBER I DISCHARGE NUMBER IKENNETT SQUARE, PA 19348 MONITORING PERIOD SITE LOCATION:

3146 SANATOGA ROAD, POTTSTOWN, PA 19464 I I DAY TO YEAR I MO I DAY Southeast Region Facsimile Sample during discharge from drain valv associated with the circulating water a Turbine Unit 1.-uctions before completing this form MUNICIPALITY:

LIMERICK TOWNSHIP 08 I 07 1 01 I I 0 1 107 I 31 NOTE: Read instx COUNTY: !MONTGOMERY 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 Measurement Discharge Discharge XXXX XXXX XXXX FLOW I Permit MONITOR MONITOR Requirement REPORT REPORT MGD Xxxx MXXX XXXX XXX XX CALCULATED J Sample TOAIL SUSI'END)D Samele No Discharge No Discharge TOALSSPNDD Measurement XXXX XXXX =xY 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 110 °F I-S~Sample 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 A Requirement , XXX MXXX XXX XXXX 0.2 0.4 MG/L GRAB Sample Measurement Permit Requirement Sample Measurement FPermit'AS'TT E --FA. EXEIT*VE 1FF I CERTIFY UNDER PENALTY 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 MY Edward 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 AWARE THAT THERE ARE SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORTMATION, INCLUDING TB ,-E A 1 718-2000 08 08 25 POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33 (9M610 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 ".r/o r F nT nr V l A1 17TfnT 'AMT MlKlC .EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM T Re 30 (CDO5WOM)286-13E PERMIT EXPIRES 3/31/2011-40 WHICH MAY NOT BE USED)SUBMIT RENEJAL BY 9/30/2010 Page 6 of 13 DISCHARGE MONITORING REPORT SUPPLIMENTAL FORM LIMERICK GENERATING STATION Limerick Township Montgomery County For the MONTH July 2008 DAY, FLOW: TEMP ' TSS,,, TRO T Spectrus CT 1300, pH , f E :MG0. " ....1 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 28 29 30 31_ _ _ _ _ _ _ __=- U--L- I ,.U = ,-,..MVg No uiscnarge I )AAA No uiscnarge I Xxx MAX[ No Discharge No Discharge No Discharge No Discharge MIN xxx xxx xxx xxx Laboratory NamE N/A In House?REMARKS:I NPDES permit PA0051926 for outfall 003 No uDiscnarge xxx No Discharge No Discharge XXX No Discharge Iff f J l J Yes Signature:

-Telephone:

(610) 71M500 PERMITTEE NAME ADDRESS (include Facility !Name / Location if different)

PRIMARYIFACILITY:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)CLIENT: !EXELON GENERATION COHPANY,LLC-CLIENT ID NO. 147686 FORM APPROVED.OMB NO. 2040-0004.

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

3146 SANATOGA ROAD, POTTSTOWN, PA 19464 MUNICIPALITY:

LIMERICK TOWNSHIP* Sample during discharge from drain valv MO DAY associated with the circulating water a 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 MONTHLY DAILY UNITS INST MONTHLY UNITS Samp e No Measurement Discharge Discharge XXXX XXXX XXXX FLOW 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_ Requirement XXXX XXXX XXXX XXxX XXXX 110 OF I*-S~Sample TOA apeNo Discharge TOTAL RESIDUAL Measurement XXXX XXXX DXh XXXX OXIDANTS Permit Requirement XXXX XXXX XXXX XXXX XXXX 0.2 MG/L GRAB Sample Measurement N Mo Discharge No Discharge Permit INST. MAX STD________ Requirement XXXLX XXXXX XXXX 6.0 XXXX 9.0 UNITS *GRAB Sample Measurement N Mo Discharge No Discharge SPECTRUS CT1300 Mesrmn x Xy YX 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.

FFTCEF I CERTIFY UNDER PENALTY OF LAW THAT I HAVE PERSONALLY EXAM-INED ANt TELEPHONE DATE Christopher H. Mudrick, V.P. A14 FAMILIAR WITH THE INFORIMATION SUBMITTED1 HEREIN ANtD BASED 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 COMMENT AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA FORM 3320-1 (Rev. 9-88) previous edition may be UseO.Re 30 (CD05WQM)256-13F PERMIT EXPIRES 3/31/2011 (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED)SUBMIT RENEWAL BY 9/30/2010 Page 7 of 13 DISCHARGE!

MONITORING REPORT SUPPLIMENTAL FORM LIMERICK GENERATING STATION Limerick Township Montgomery County I For the MONTH July 2008 DAY FLOW TEMP- TSS 1TRO Spectrus.CT-l130oo pH IMGI3D F, mg/i MI ,mg/I SD I- _2 I 3 4 5 6 7 7 8 I 101 11 12 13 14 15 16 17__18 19 20 I _ _21 22 23 24 25 26 27 28 29 30 31 Avg! No Discharge XXX No Discharge XXX No Discharge XXX_ _ F _ _ _ _ _ _ _ _ _ _ _ __.....No I No Discharge 1 No Discharge INo Discharge MIN [ xxxI xxx xxxxxx Laboratory NamE N/A In House?REMARKS: No Discharge No Discharge I XXX No Discharge Yes Signature:

Telephone:

law/610) 718"--2500 (C610) 71 Er-2500 NPDES permit PA0051926 for outfall 005 PERIITTEE NAME ADDRESS (include Facility[Name

/ Location if different)

PRINARY "FACILITY:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)CLIENT: 1EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 FOR4 APPROVED.06006, 007, 008, 009 OMB NO. 2040-0004.

I DISCHARGE NUMBER Southeast Region Facsimile ADDRESS:'200 EXELON WAY PERMIT NUMBER 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 MUNICIPALITY:

LIMERICK TOWNSHIP J08 07 01 1ERJMl DAY 08 R e7 i r L NOTE: Read instructions COUNTY:!MONTGOMERY 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 (DI SSOLVED) 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. AN4 FAMILIAR WITH THE INFORMATION SUBMII'FED HEREIN AND BASED ON MY Edward 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 AWARE THAT THERE ARE SIGNIFICANT PENALTIES FOR SUBMITTPING FALSE INFORMATION, INCLUDING TE 6 610 718-2000 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 EPA FORM 3320-1 (Rev 9-88) previous edition may be Used.Re 30 (CDO5iWQM)256-13G PERMIT EXPIRES 3 3/31/2011 (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED)SUBMIT RENEWAL BY 9/30/2010 Page 8 of 13 biSCH.kMt'vlNITORING REPORT SUPPLIMENTAL FORM LIMERICK GENERATING STATION Limerick Town~ship iviontgomery County For the MONTH July 2008 n',g/---I. -------4. -- ---- -CUPl I fla,11 U&P STD lbsT5 NH34 Phos ma/1 Iron(dis)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 MiN IX xxx xxx XXX XXX XXX XX'K tx 1-x Ix 4 +NR NR NR NR NR NA NR xx X xxx xxx ____ ____ ____/1 Lauoratory Nar))RIEMARKS: M.J. Reider ASSOC., Inc.In House? Yes Signature:

Ak'Telephone:

(610) 7Ti-2500 NPDES permit PA0051926 for outfalls 006, 007, 008. 009 PERMITTE E NAME ADDRESS (include Facility Name / Location if different)

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PRIMARY FACILITY:

LIMERICK GENERATING STATION CLIENT: ?EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 012 ADDRESS:1200 EXELON WAY PERMIT NUMBER DISCHARGE NUMBER!KENNETT SQUARE, PA 19348 MONITORING PERIOD SITE LOCATION:

3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YEAR I MO DAY I TO I YEAR i MO I DAY FORM APPROVED.OMB NO. 2040-0004.

Southeast Region Facsimile Sample daily during discharge from 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 _YXX ESTIMATED 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 O No Discharge No Discharge OIL AND IGREAsE Measurement XXLXX XXXX XXXX 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 (3rd st 5th Ye.S) Permit MONITOR REPORT_ Requirement XXIXX XXXx XX=X XXXX 7.0 MG/L COMPOSITE I Sample pasmpe No Discharge No Discharge Measurement XXXX XXXX XXXX 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 SOISPermit Sls Imedm nd Yau MONITOR REPORT MONITOR REPORT I ~~Requ iremen t X.XXX XXXX X.kX XXXMG/LCMOIT Sample No Discharge No Discharge IRON [TOTAL Measurement xxxx XXXX XXXX lst mid 211d 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 ,ilU.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 EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM 1-40 WHICH MAY NOT BE USED)Re 30 (CD0 WOM)256-13H SUBMIT RENEWAL BY 9/30/2010 Page 9 of 13 PERMITTEE NAME ADDRESS (include i Facility Name / Location if different)

PRIMARY FACILITY:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)CLIENT: IEXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 013, 014; 015, 016, 017, 018, 019, 01 ADDRESS:1200 EXELON WAY PERMIT NUMBER DISCHARGE NUMBER IKENNETT SQUARE, PA 19348 MONITORING PERIOD SITE LOCATION:

3146 SANATOGA ROAD, POTTSTOWN, PA 19464 1 YEAR I MO DAY TO I YEAR I MO I DAY I FORM APPROVED.OMB NO. 2040-0004.

Southeast Region Facsimile Sample any one of these outfalls.IUNICTPALITY:

LIMERICK TOWNSHIP 08 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 XXXX XXXX NR i Permit REPORT STD 1 PER 1_ Requirement XXXX XXXX XXxX XXXX XXXX DAILY MAX. UNITS YEAR GRAB Sample TOTAL 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 KJ ELDAHL 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 MY 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 THL\T THERE ARE SIGNIFICANq PENALTIES FOR SUBMIT~TING FALSE INFORMIATION, INCLUDING THE ~y 1 1-2000 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 AR T E -RNT to$10 and or maximum imprisonment of between 6 months and 5 SIGNATURE OF ATORIED EENT COE years) OFFICER OR AUHRZDAETCODE NUBER YEAR HO DA'Y COMMENT AND EXPLANATION OF ANY VIOLATIONS I EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used.Re 30 (CD05WOM)256-13R PERMIT EXPIRES 3/31/2011 (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED)SUBMIT RENEWAL BY 9/30/2010 Page 10 of 13 DISCHARGE!

MONITORING REPORT SUPPLIMENTAL FORM LIMERICK GENERATING STATION Limerick Towhship Montgomery County For the MONTH July 2008 DAY CBODI § COD P J O&G , PH TSS. [ NH3N Phos Iron(dis)rg/i mg/I j 911mgI T STD r mg/I g1 m 2 3 '4 5 6 I 7 8 9I 10 11 12 13 14 '15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 I .... ......_......Avg MAX MIN XXX XXX XXX XXX xxX XXX XXX xxx NRI NR NR NR NR NR NR NR XXx XXX XXX XXX XXX XXX XXX XXX-J/7 Laboratory NamE REMARKS:!M.J. Reider Assoc., Inc.In House? Yes Signature:

Telephone: (MO) 718'21'00 NPDES permit PA0051926 for outfalls 013, 014, 015, 016, 017, 018, 019, 030 PERMITTEE NAME ADDRESS (include Facility Name / Location if different)

PRIH1ARY!FACILITY:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)CLIENT: iEXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 FORM APPROVED.021 OMB NO. 2040-0004.

I DISCHARGE NUMBER l Southeast Region Facsimile ADDRESSj2O0 EXELON WAY PERMIT NUMBER-t I IKENNETT SQUARE, PA 19348 MONITORING PERIOD 1* Cooling tower drift loss, etc.SITE LOCATION:

3146 SANATOGA ROAD, POTTSTOWN, PA 19464 MUNICIPALITY:

LIMERICK TOWNSHIP YA M DAYI TO YEAR MO DAYI 08 I 0o7 1 0 I 08 i o7 I NOTE: Read instructions COUNTY: MONTGOMERY 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..; INIPAL EX.E.C11T:VE OFFICER I CERTIFY UNDER PENALTY OF LAW THAT I HAVE PERSONALLY 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 PENALI.TES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE 610 718-2000 08 08 25~POSSIBILITY OF' PINE 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 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)EPA FORM 3320-1 (Hev. 9-88) previous edition may be Used. (REPLACES EPA FORM T-Re 30 PERMIT EXPIRES 40 WHICH MAY NOT BE USED)3/31/2011 SUBMIT RENEWAL BY 9/30/2010 Page 11 of 13 PERMITTEE NA.HE ADDRESS (include FacilinyýName

/ Location if different)

PRIMARY FACILITY:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)CLIENT: EXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 020 ADDRESS:200 EXELON WAY PERMIT NUMBER DISCHARGE NUMBER tKENNETT SQUARE, PA 19348 MONITORING PERIOD SITE LOCATION:

3146SAATG ROAD, POTSTOWN, PA 19464 YEAR IMO IDAY I TO I YEARIDA FORM APPROVED.OMB NO. 2040-0004.

Southeast Region Facsimile* Sample daily during the dischari cooling towers through 020.MUNICIPALITY:

LIMERICK TOWNSHIP 08 1 07 01 J 08 I 07 I 31 NOTE: Read instructions before completing this form COUNTY: I MONTGOMERY 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 RIXICICAL XFCST7Vr, IFFICER I CERTIFY UNDER PENALTY OF LAW THAT I HAVE PERSONALLY EXAMINED A11I TELEPHONE DATE Christopher H. Mudrick, V.P. AM FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN AND BASED ON MY Edward 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 AWARE THAT THERE ARE SIGNIFICANT POSSIBILITY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33\U.S.C. §1319. (Penalties under these statutes -ay include 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)EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used. (REPLACES EPA FORM T-40 WHICH M I3 W Re 30 (CDG5WQM)25&-1 3 PERMIT EXPIRES AY NOT BE USED)3/31/2011 SUBMIT RENEWAL BY 9/30/2010 Page 12 of 13 DISCHARGE, MONITORING REPORT SUPPLIMENTAL FORM LIMERICK GENERATING STATION Limerick Township Montgomery County For the MONTH July 2008 020 021 DAY FLOW. SuspSolids[ ,TEMP , pH CBODSI-- COD Io&Gq. pH TSS NH3N 1 Phos I. Iron(dis)SGPD,ý- -g/ F9 jd STDl t iiI~ g STDQ j -j m/I jgI A/2 3 4 6 7 8 9 10 11 12 13 14 15 16 17~18 __ _ _ __!_ _ _ _ __ _ _ _ _ _ _ _ _ _20 21 __ _ _ _ _ _ __ _ _22 _ _ _ __ _ _ _ _23 __ __ _ _ _ _3024 __ _____ ____ ____ ____ ____ ____ ____ ____ ____Avg MAX MIN No Discharge No Discharge I No Discharge I No Discharge XXX xxx XXX XXX XXX XXX XXX xxx No Discharge XXX No Discharge No Discharge]

No Discharge No Discharge No Discharge No Dischargel No Discharge No Discharge No Discharge INo Discharge NoDischarge XXX XXX No Discharge XXX XXX XXX XXX XXX 4XX XXX XXX Laboratory NamE REMARKS: M.J. Reider Assoc., Inc.In House? Yes Signature:

Telephone:

(6'10) 71z2.500 NPDES permit PA0051926 for outfall 020,021 PER1,IITTEE NZ&E ADDRESS (include Facility Name / Location if different)

PRIMARY [FACILITY:

LIMERICK GENERATING STATION NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)FORM APPROVED.I I 023 IOMB NO. 2040-0004.

CLIENT: iEXELON GENERATION COMPANY, LLC-CLIENT ID NO. 147686 PA0051926 ADRESS00EXELON WAY PERMIT NUMBER j DISCHARGE NUMBER ,KENNETT SQUARE, PA 19348 MONITORING PERIOD SITE LOCATION:

3146 SANATOGA ROAD, POTTSTOWN, PA 19464 YEAR 1 MO I DAY I TO 1 YEAR I NO I DAY Southeast Region Facsimile* Sample during discharge from drain valv associated with the circulating water a Turbine Unit 1.-uctions before completing this form MUNICIPALITY:

LIMERICK TOWNSHIP [ 08 107 1 NOT1E: Read instr COUNTY: I MONTGOMERY 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 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 Discharge No Discharge pH iMeasurement XXXX XXXX XKXXX Permit INST. MAX STD_ Requirement XXXX XXXX XXXX 6.0 XXXX 9.0 UNITS GRAB I Sample Ileasurament L No Discharge No Discharge SPECTRUS CT1300 Permit 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 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 OBTAINING Plant ManagerN-THE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUE, ACCURATE AND COMPLETE.

I AM AWARE THAT 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 EPA FORM 3320-1 (Rev. 9-88) previous edition may be Used.Re 30 (CDO5WOM)256-13K PERMIT EXPIRES 3/31/2011 (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED)SUBMIT RENEWAL BY 9/30/2010 Page 13 of 13 I DISCHARGE MONITORING REPORT SUPPLIMENTAL FORM LIMERICK GENERATING STATION Limerick Township Montgomery County For the MONTH July 2008 DAY ' FLOW , TSS.1 TROI 1, pH 1H Spectrus CT.1300 11 MGDj mg/ ____STD mgA~2 3 4 _ _ I _ _" 5 _6 _ _7 _8 9 10 _11 _12 13i 14 15I 16 17I 18 19 20 21 22 23 24 25 26 27 28 29 30 31__I. _ _ _ _ _ _ _ _AvgI No Discharge NoDischargej XXX MAX No Discharge No Discharge No Discharg MIN xxx xxx j xxx Laboratory Name N/A REMARKS: NPDES permit PA0051926 for outfall 023 xxx No Discharne eI No Discharge I No Discharge I4 No DischarcgeI xxX-J -4.7,/2 Yes J ________________

I Signature:

E t L Telephone:

(610) 71T-2500 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 ID NUMBER 2 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. 06-00003-4 .4. 4+ + 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.

Name[Title Principal Executive Officer Edward W. Callan / Plant ManaQer Phone: (610) 718-2000 Date: 08/25/08 Signature of Principal Executive Officer or Authorized Ageret--.