Text

Owner'S Activity Report (OAR-1)
	ML17237A021
Person / Time
Site:	Limerick
Issue date:	08/25/2017
From:	Libra R; Exelon Generation Co
To:	Dan Dorman; Document Control Desk, Office of Nuclear Reactor Regulation, NRC Region 1
References
	LG-17-111
	Download: ML17237A021 (71)
	v • d • e

Exelon Generation ASME Section XI LG-17-111 August25,2017 Mr. Daniel Dorman, Regional Administrator U.S. Nuclear Regulatory Commission, Region 1 2100 Renaissance Blvd., Suite 100 King of Prussia, PA 19406-2713 Limerick Generating Station, Unit 2 Renewed Facility Operating License No. NFP-85 Docket No. 50-353

Subject:

Limerick Generating Station Unit 2 Owner's Activity Report (OAR-1)

The Limerick Generating Station Unit 2 OAR-1 for Li2R14 (Attachment 1) is submitted in accordance with ASME Section XI, Article IWA-6200 and ASME Section XI Code Case N-532-

5. This report includes inspections and Repair and Replacement Activities completed during the third and fourth lnservice Inspection Interval and the second and third Containment lnservice Inspection Interval.

The use of the Form OAR-1 and NIS-2A started in conjunction with the start of the fourth lnservice Inspection Interval and the third Containment lnservice Inspection Interval which began on February 1, 2017. Repair and Replacement Activities completed during the third lnservice Inspection Interval and the second Containment lnservice Inspection Interval are reported using Form NIS-2 and are included as part of this submittal. These reports are contained in Attachment 2, NIS-2 Reports for the Third lnservice Inspection Interval.

During the refuel outage Li2R14, visual examinations of the submerged suppression pool liner were performed as required by ASME Section XI, License Renewal Commitment, and the Limerick coating maintenance program. These visual examinations identified degradation in the inaccessible areas. Attachment 3, Li2R14 Suppression Pool Inaccessible Areas Evaluation, is included to document the acceptability of the conditions.

There are no regulatory commitments contained in this letter.

If you have any questions or require additional information, please contact Mr. Ted Ryan at 610-718-3530.

Respe~tfully, Richard W. Libra Vice President, Limerick Generating Station Exelon Generation Co., LLC

Form OAR-1 Owner's Activity Report : NIS-2 Reports for the End of the Third lnservice Inspection Interval : Li2R14 Suppression Pool Inaccessible Areas Evaluation cc: S. Rutenkroger, USNRC Senior Resident Inspector, LGS NRG Document Control Desk

ATTACHMENT 1 FORM OAR-1 OWNER'S ACTIVITY REPORT Plant Limerick Generating Station, 3146 Sanatoga Road, Pottstown, Pennsylvania 19464 Unit No. 2 Commercial Service Date _ _ _J_a_nu_a_ry...__8.._,_1_99_0_ _ _ Refueling Outage Number ___L_i2_R_14 _ __

(If applicable)

Current Inspection Interval Third & Fourth Inspection Interval (ISi), Second & Third Inspection Interval (Containment ISi)

(1st, 2nd, 3ra, 4111, other)

Current Inspection Period Third & First Inspection Period (ISi and Containment ISi)

(1st1 2nd1 31"d )

ASME Section XI 2001 Ed. through 2003 Add. (3rd ISl/2"d CISI Edition and Addenda of Section XI applicable to the Inspection Plans Interval), ASME Section XI 2007 Ed. through 2008 Add. (4th ISi/3rd CISI Interval)

ISi Program Plan (ER-LG-330-1001), Rev. 10 (3/25/2015), Rev. 11 (10/21/2016), Rev. 12 Date and Revision of Inspection Plans (2/1/2017), Rev. 13 (4/13/2017)

Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans Same as above Code Cases used: N-508-4, N-532-5, N-578-1, N-613-1, N-638-4, N-639, N-686-1, N-702, N-749 (approved by Relief Request)

CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this report are correct; (b) the examinations and tests, meet the Inspection Plan as required by the ASME Code, Section XI; and (c) the repair/replacement activities and evaluations supporting the completion of Li2R14 conform to the requirements of Section XI (refueling outage number)

Signed fJl/dl/£ Mark Weis, ISI Program Owner (Owner or Owner's deslgnee. Title)

Date CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and employed by The Hartford Steam Boiler Inspection and Insurance Company of Hartford, Connecticut have inspected the items described in this Owner's Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirements of Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied concerning the repair/replacement activities and evaluation described in this report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~.s. Kilt:! Commissions 14396 A, N, I PA3045 (Inspector's Signature) (National Board Number and Endorsement)

Date Ave:.vsr 2Y, 2.0IJ Page 1 of 3

ATTACHMENT 1 TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Examination Item Category Number Item Description Evaluation Description LGS submitted relief request ML17135A423 to implement half Leakage from 2 instrument nozzle nozzle repair. Relief request B-P B15.10 during Class 1 system leakage test includes flaw evaluation, design analysis, and corrosion evaluation to justify continued operation.

As found condition evaluated by Variable support EBB-209-H029 out engineering and determined F-A F1.20C of tolerance acceptable with no corrective measures required.

As found condition evaluated by Variable support GBB-219-H079 out engineering and determined F-A F1.20C of tolerance acceptable with no corrective measures required.

ASME Class 3 bonnet installed on ASME Class 1 valve. Operability evaluation was completed and determined the form, fit, and function of the Class 3 bonnet is identical to 3 HV-041-2F019 outboard main the Class 1 bonnet with the N/A N/A steam drain line primary containment exception of post manufacturing isolation valve NDE. The Class 3 bonnet will be replaced with a Class 1 bonnet at next available opportunity to restore full qualification of the valve to the design requirements.

Page 2 of 3

ATTACHMENT 1 TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Code Item Description Date Repair/Replacement Class Description Of Work Completed Plan Number RPV piping flange Replace N-6A & N-6B flange 1 5/27/2017 03973866-47 bolting bolting due to thread damage Performed half nozzle repair 2 instrument 1 due to leakage identified during 8/22/2017 04007992-04 nozzle (N-16D)

Class 1 system leakage test Replace 3 HBC-245-01 supply 3 HBC-245-01 3 piping to HPCI unit cooler 5/25/2017 03755841-02 piping (2B-V209) due to pin hole leak Page 3 of 3

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval TABLE 3

SUMMARY

OF ASME SECTION XI REPAIR & REPLACEMENT ACTIVITIES USING FORM NIS-2 Work Order Description Date Of Work Completed System 11 - Emergency Service Water C0255469 Replaced 2 and 3 HBC-240 supply piping to 2B-V208 RCIC unit cooler 9/15/2015 C0255469 Replaced 2 and 3 HBC-249 return piping from 2B-V208 RCIC unit cooler 9/15/2015 System 43 - Reactor Recirculation C0257638 Replaced reactor recirculation pump 2B-P201 mechanical seal with rebuilt 2/29/2016 mechanical seal assembly System 44 - Reactor Water Clean-up C0260596 Replaced RWCU pump 2A-P221 motor case assembly 12/9/2016 System 49 - Reactor Core Isolation Cooling C0258727 Replaced disc in 3 RCIC exhaust vacuum breaker check valve 049-2018 2/18/2016 C0258726 Replaced disc in 3 RCIC exhaust vacuum breaker check valve 049-2F081 2/18/2016 System 50 - Reactor Core Isolation Cooling Pump & Turbine R1263275 Replaced inboard RCIC rupture disc and holder PSE-050-2D001 11/7/2016 R1258248 Replaced outboard RCIC rupture disc and holder PSE-050-2D002 11/7/2016 System 51 - Residual Heat Removal R1127910 Replaced disc in 1-1/2 RHR check valve 051-2115B 8/18/2016 System 52 - Core Spray R1117651 Replaced CS relief valve PSV-052-2F012A and adjacent piping 10/21/2015 System 56 - High Pressure Coolant Injection Pump & Turbine R1336902 Replaced 1-1/2 HPCI flanged relief valve PSV-056-2F018 8/18/2016 System 92 & 20 - Diesel Generators & Interface Systems R1142949 Replaced 1-1/4 combustion air flexmaster coupling 2A-G501-DR 1/4/2016 R1321427 Replaced D-21 diesel generator jacket water circulating pump 2A-P530 2/19/2016 R1174130 Replaced diesel generator ESW expansion joint XJ-011-201A 1/14/2016 R1174131 Replaced diesel generator ESW expansion joint XJ-011-202A 1/14/2016 R1311117 Replaced D-22 diesel generator jacket water circulating pump 2B-P530 11/13/2015 R1174134 Replaced diesel generator ESW expansion joint XJ-011-201B 11/13/2015 R1174136 Replaced diesel generator ESW expansion joint XJ-011-202B 11/13/2015 R1159699 D-23 diesel generator engine six year overhaul 2/19/2016 R1286516 Replaced D-23 diesel generator exhaust manifold cap screws 3/10/2016 R1326515 Replaced D-23 diesel generator jacket water circulating pump 2C-P530 3/9/2016 R1323629 Replaced 1-1/2 standby lube oil pump assembly 2C-P535 3/26/2016 R1174656 Replaced diesel generator ESW expansion joint XJ-011-201C and adjacent 2/19/2016 piping R1140030 Replaced diesel generator ESW expansion joint XJ-011-201C 2/19/2016 C0260141 Replaced diesel generator ESW expansion joint XJ-011-201C and adjacent 10/5/2016 piping C0259924 Replaced D-24 diesel generator combustion air intercoolers 11/14/2016 Page 1 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ---------=E~xe=l=on'"'--=G=e~ne=r=a=tio=n~C=o=m--=-pa=n~y~.=L=LC=---------- Date ___________S=e=p=te=m..:..:.=be=r-'1:...:::0"--.=20=-1=-=5'-----------

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet --~-of _______2___________

Address

2. Plant ------=u....m.....e__ri=ck~G=e;..;..ne=r-=at=in_...g._S=t=a=tio=n......__ _ _ _ _ __ Unit - - - - - - - - - - - - 2 " ' - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order C0255469 (supply)

Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by -=E=x=el=on~N=u=cl=ea=r---_ _ _ _ _ _ _ _ __ Type Code Symbol Stamp ____N~o~n~e_________

Name Authorization No. _______.:...;:N=ot::....;:a=p=p=lic=a=b=le...__ __

3146 Sanatoga Road. Pottstown. PA 19464 Expiration Date ---------'-N=o-'-ta=p"""p""'li=ca=b=le=-----

Address

4. Identification of System Emeraency SeNice Water (System 011) Line No. SP-HBC-240-E07 2B-V208

5. (a) Applicable Construction Code ASME Ill 19.H_Edition, Winter 74 Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs I Replacement Activity 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components Corrected, ASME Name of Name of Manufacturer National Other Identification Year Removed, or Code Component Manufacturer Serial No. Board Built Installed Stamped No. (Yes or No)

(1) 3" NPS Western Heat No.

114-91439 Weld neck Forge & MM11106485 N/A PO# 339825-839 N/A Installed No Flange Flange (1) 3" x 2" NPS Taylor Heat Code

114-98055 Reducer Forge NFSS-1 N/A PO# 339825-864 N/A Installed No (2) Feet of 2" NPS Michigan Heat No.

114-90045 Pipe Seamless OOA092767 N/A PO# 339825-097 N/A Installed No Tube (2) 2" NPS Bonney Lot No.

114-90818 Elbows Forge 78129 N/A PO# 339825-070 N/A Installed No (1) 2" x 2" x 3/4" Bonney Lot No.

114-98248 NPS Reducing Forge 79711 N/A PO# 339825-864 N/A Installed No Tee (1) 2" NPS Socket Western Heat No.

114-90527 Weld Flange Forge & A090309 N/A PO# 009825-4534 N/A Installed No Flange

Traceability per Exelon stock code number and purchase order

7. Description of work: Replaced 3" and 2" emergency seNice water supply piping to unit cooler 2B-V208 in-kind.

8. Tests conducted: Hydrostatic O Pneumatic O Nominal Operating Pressure* Exempt O Other O 134 psi TestTemp. NIA °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, N.J. 07007-2300 Page 2 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. C0255469 (Supply)

Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _ _ _ _ ___..N_..A........__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expiration Date_ _ _ _ _. . _.N....... A Date September 10 I 2015 0

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by HSB Global Standards of Hartford Connecticut have inspected the components described in this Owner's Report during the period JM.Jv"1l-Y7, Zets: to S6~ft1BM ISJw I~ , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~;__

_....,...=-r,,,.....i::::: __~

~ctor's Signature Commissions 14396 A N I PA 3045 National Board, State, Province, and Endorsements Date_ _ _ __SE4t._j_o.__20 IS"""

S'~

Page 3 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner _ _ _ ____;;;;E=xe=l=on--=G=e.;..;..ne=r=a=tio=n~C=o=m==pa=n~y~*=LL=C,.__ _ _ _~ Date ______S=e...p...,te=m""'"b=e=r_.1""'0""".2=0"-1;..;:5...___ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet -~-of - - - - " " " 3 ' - - - - - - - - - - -

Address

2. Plant -----=Li.;..;..m=e"""'ric=k.....G=en_,e=r=at=in....g'""'S=t=at=io:;.;..n_________ Unit ------------'2~-------~

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order C0255469 (return)

Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --=E=x=el=o.;..;..n..:...N=u=cl=e=ar'------------ Type Code Symbol Stamp ------'N'-"o=n"'"'e.....__ _ _ _ __

Name Authorization No. _ _ _ _ _ _. . ,N__ ot....a,..p_.0. .lic=a=b;.;.ole.__

3146 Sanatoga Road. Pottstown. PA 19464 Expiration Date ------~N_o~t~ao~P~li~ca~b~le~---

Address

4. Identification of System Emergency Service Water (System 011) Line No. SP-HBC-249-E07 2B-V208

5. (a) Applicable Construction Code ASME Ill 19..H_Edition, Winter 74 Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs I Replacement Activity 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components Corrected, ASME Name of Name of Manufacturer National Other Identification Year Removed, or Code Component Manufacturer Serial No. Board Built Installed Stamped No. (Yes or No)

(1) 3" NPS Western Heat No.

114-91439 Weld neck Forge & MM11106485 N/A PO# 339825-839 N/A Installed No Flange Flange (2) 3" NPS 45 Taylor Heat Code

114-91857 Degree Elbows Forge NLCl-4 N/A P0#073874 N/A Installed No (1) Foot 3" NPS United States Heat No.

114-90060 Pipe Steel H44932 N/A PO# 009825-4233 N/A Installed No (1) 3" x 2" NPS Taylor Heat Code

114-98055 Reducer Forge NFSS-1 N/A PO# 339825-864 N/A Installed No

Traceability per Exelon stock code number and purchase order

7. Description of work: Replaced 3" and 2" emergency service water return piping from unit cooler 2B-V208 in-kind.

8. Tests conducted: Hydrostatic D Pneumatic O Nominal Operating Pressure* Exempt D Other 0 134 psi Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, N.J. 07007-2300 Page 4 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. C0255469 (Return)

Sheet 2 of 3 FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ------=E~xe=l=on"'--=G=e..... ne=r~a=tio~n~C=o=m........,.pa=n~y~.=LL=C=-----~ Date ------'S"'"'e"""p"'""te=m"""b"'"'e=r-'1"""'0""'".2=0"""1'""'5"--------

Name 200 Exelon Way. Kennett Square PA 19348 Sheet 2 of _ _ _ _ _ _ _ _ _ _ _ __

~3 Address ne=r=at=in....a'""'S"'"'t=at=io~n.___ _ _ _ _ __

2. Plant -----=Li"""m"""e"""ri=ck'"'--=G=e..... Unit _ _ _ _ _ _ _ _____.2=--------~

Name 3146 Sanatoqa Road. Pottstown. PA 19464 Work Order C0255469 (return)

Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --=E=x=el=on'"""""'"N=u=cl=e=ar"------------- Type Code Symbol Stamp _ _____.N ....o=n.-e_________

Name Authorization No. ------"'""'N-=-ot"-'a=p=p=lic=a=b=le---_ __

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date ------~N_o~t..... ao...o~li=ca=b.....le_ _ __

Address

4. Identification of System Emergency Service Water (System 011) Line No. SP-HBC-249-E07 2B-V208

5. (a) Applicable Construction Code ASME Ill 19.H.._Edition, Winter 74 Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs I Replacement Activity 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. ldent1T1cat1on of Comoonents Corrected, ASME Name of Name of Manufacturer National Other Identification Year Removed, or Code Component Manufacturer Serial No. Board Built Installed Stamped No. (Yes or No)

(3) Feet of 2" NPS Michigan Heat No.

114-90045 Pipe Seamless OOA092767 NIA PO# 339825-097 N/A Installed No Tube (1) 2" x 2" x 3/4" Bonney Lot No.

114-98248 NPS Reducing Forge 77643 N/A PO# 031595 N/A Installed No Tee (1) 2" NPS Socket Western Heat No.

114-90527 Weld Flange Forge & A070552 N/A PO# 009825-3960 N/A Installed No Flange

Traceability per Exelon stock code number and purchase order Page 5 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. C0255469 (Return)

Sheet 3 of 3 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _ _ _ _ _---'-N=A..:....-_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expiration Date_ _ _ _ _. :. ;N"""'A Date September 10 ,20_15_ _

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by HSB Global Standards of Hartford Connecticut have inspected the components described in this Owner's Report during the period J~ I , 2e IS- to 5fe~.fl.. 1~1.t?rs-- , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~~~

____,~_,.....,....

~

_ _ __ _ _ _ _ _ _ _ _ Commissions 14396A NI PA3045 National Board, State, Province, and Endorsements Date 5E:'f"VcM Brt. Is; 20.....:...l~--

Page 6 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ----------=E~xe=l=on""""-=G=e~n=er=a=tio=n...:...C==om""""""pa=n~y~.=L=LC=--------- Date _________.F'"""e=b"'"ru=a=rv--=27""'."""2=0"""1-=6-_ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet -~-of _____~2~--------

Address

2. Plant ------=Li=m..:..::e""'ri=ck"'-=G=e"""'ne=r=a=tin""'q,._S=t=a=tio=n-'--------- Unit - - - - - - - - - - - = 2 = - - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order No. C0257638 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --=E::.:.;x=el=o"""'n...:...N=u=c=le=a=--r_ _ _ _ _ _ _ _ _ __ Type Code Symbol Stamp -------'-N~/"-'A'-------

Name Authorization No. _ _ _ _ _ _ _ _ _...:..,N;::..:/A....:,__ _ __

3146 Sanatoqa Road. Pottstown PA 19464 Expiration Date ------------'-N"""/"""A_ _ _ __

Address

4. Identification of System Reactor Recirculation Pump (System 043) Line No. VRR-2RD Pump 2B-P201

5. (a) Applicable Construction Code ASME Ill 19 89 Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repair I Replacement Activity: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components:

ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board No. Identification Removed or Stamped Installed (Yes or No) 2B-P201 311084

116-98907 Recirc Pump Borg-Warner B-W Job No. N/A PO# 1994 Installed Yes Mechanical 94-EP-3750 LS-696633 Seal 2B-P201 324889

114-98951 Recirc Pump Borg-Warner B-W Job No. N/A PO# 1996 Removed Yes Mechanical 96-EP-3718 LS-159158 Seal

Traceability per Exelon stock code number.

7. Description of work: Replaced reactor recirculation pump mechanical seal cartridge.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure I Exempt D Other D 1060 psi Test Temp. 550 °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 7 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. C0257638 Sheet 2 of 2 FORM NIS-2 (BACK)

9. Remarks: Manufacturers data reports are traceable by purchase order and work order package.

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in this report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _ _ _ _ _ _N~A~---------------- Expiration Date_ _ _ _ _ _N~A~

Signed J.H. Kramer site weld administrator Date February 27. ,20_16~--

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period J llLY I~. 1015' to ff.at.~NJ( 2.1. 2..o , and state that to the best of my knowledge and belief, the Owner has p:rformed examinations and taken corrective me"'asures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this Page 8 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner -----=E~xe=l=on;..;.....;:::G=e~n=er=a=tio=n~C=o=m"'-'=pa=n~Y~*=L=LC=-----~ Date _ _ _ _ _ _D~e~c~em~be~r_7~2~0~16_ _ _ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet ----'-_of _ _ _- - - ' 2 " " - - - - - - - - - -

Address

2. Plant -----=Li~m..:..;:e:..:,,,ri=ck:..=...=G=e.:....:.ne=r=at=in"""q"'""S=t=a=tio=n_,___ _ _ _ _ __ Unit --------~2~ * ---------

Name 3146 Sanatoqa Road. Pottstown PA 19464 Work Order# C0260596 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --=E=x=el=o.:....:.n..:..N=u=cl=e=ar'------------ Type Code Symbol Stamp -------'N""'"'"/"""""A'-------

Name Authorization No. --------~N~/A~----

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date ----------'-N"""/A'-'------

Address

4. Identification of System : Reactor Water Clean-up (System-044 ) Line No. DCC-201 Pump 2A-P221

5. (a) Applicable Construction Code ASME Ill 19..H.....__Edition, Winter 1974 Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repair I Replacement Activity: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components:

ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board Identification Removed or Stamped No. Installed (Yes or No) 2A-P221 RWCU Pump Hayward Tyler UG 12980191-04 378

114-01257 1999 Installed Yes Motor Case PO 165846 Assembly 2A-P221 RWCU Pump Hayward Tyler UG 12980191-03 376

114-01257 1999 Removed Yes Motor Case PO 165846 Assembly

Traceability per Exelon part code number and manufacturer's serial number.

7. Description of Work: Replaced reactor water clean-up pump motor case assembly

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D Pressure 1250 PSI Test Temp. ~°F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2in.x11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 9 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval Work Order# C0260596 Sheet 2 of 2 FORM NIS-2 (BACK)

9. Remarks: The pump motor case assembly was removed from spare complete pump & motor assembly S/N UG 12980191-04 and Applicable Manufacturer's Data Reports to be attached installed at Exelon component location 2A-P221. The original pump case assembly from pump & motor assembly S/N UG 12981091-03 was not removed and replaced and is installed at 2A-P221.

CERTIFICATE OF COMPLIANCE I certify that the statements made in this report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _ _ _ _ _- - = - N = A - ' - - - - - - - - - - - - - - - - - - Expiration Date NA Signed J.H. Kramer site weld administrator Date December 7 , 2016 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period fl\AP-lH I. l.olb to Dflw'1!. lf, Zclb , and state that to the best of my knowledge and belief, the Owner has perf~rmed examinations and taken corre~tive measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

---~~~~ ~-~~--~---* ------~Comm~~ons 1~4=3=96~A~N~l~~P~A~3=0~4=5---------~

National Board, State, Province, and Endorsements Date Dtce;tfzil ~ 20_1b__

Page 10 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner -----=E=xe=lo=n-=-=G=e~ne=r=at=io=n~C=o=m..:..:.=pa=n~Y~*=LL=C:.__ _ _ __ Date _ _ _ _ _......F~e=br-=u=a_rv_1~7.......=2=01"'"'6=--------

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet _ _.__of _ _ _ _=2_ _ _ _ _ _ _ __

Address

2. Plant -------'L=i:..:..m=e""""ric=k""-G=e=n""'e=ra=t=in"""g'-"S=t=at=io=n=--------- Unit --------~2_ _ _ _ _ _ _ _ __

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order No. C0258727 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --=E=x=el=o""'"n.....N=u=cl=e=ar=------------ Type Code Symbol Stamp _ _ _ _ _ N_/A_ _ _ __

Name Authorization No. _ _ _ _ _ _ _ _:;...;N/:..:..A.;..__ _ __

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date - - - - - - - - - - - ' - N...... /A.....__ _ __

Address

4. Identification of System: Reactor Core Isolation Cooling (System 049) =Li"'"'n=e..._N=o............

H=B=B-"-2"-'4=5_ _ _ _ _ _ _ _....:..V=al:..:..ve=-=0....:..49=--=2=0..:..;18=-----

5. (a) Applicable Construction Code ASME Ill 19.lL_Edition, Summer 1973 Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N/A

6. Identification of Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board Identification Removed or Stamped No. Installed (Yes or No)

114-33435 3" Check Valve Velan Valve S/N 8312 N/A PO# 046773 2012 Installed Yes Disc

Traceability per Exelon stock code number.

7. Description of work: Replaced 3" RCIC swing check valve disc.

8. Tests conducted: Hydrostatic O Pneumatic O Nominal Operating Pressure 0 Exempt

Other O N/A PSI Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 FORM NIS-2 Page 11 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. C0258727 Sheet 2 of 2 FORM NIS-2 (BACK)

9. Remarks: Manufacturers data reports are traceable by Exelon work purchase order.

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Type Code Symbol Stamp_ _ _ _~N~A~--------------------------

Certificate of Authorization No. _ _ __,_N=A...o...-_ _ _ _ _ _ _ _ Expiration Date_ _ _.:....:N:.:....A,___ _ _ _ _ _ _ _ __

Signed J.H. Kramer site weld administrator Date Februarv 17 , 201.§__

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period 1)uM&U. 1'1, 2.olS to f£*g."A&~ 11 2"1' ,

1 and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

_ __,,.....___.,....~~-----~- _ _ _ _ _ _ _Commissions 14396 A N I PA 3045 National Board, State, Province, and Endorsements Date f£&~At.~ I8, 20-"-(' - -

Page 12 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner -----=E~xe=l=on'-'--=G=e~ne=r=a=tio=n~C=o=m~pa=n~v~*=L=LC~---- Date _ _ _ _ _..:..F-=e=bru==a~rv_1""'"7......=2=-01"'""'6=--------

Name 200 Exelon Way, Kennett Square, PA 19348 Sheet _ _ _ of _ _ _ _=2'---------~

Address

2. Plant --------'L=im~e""'"ric=k~G=e=n"""e""'"ra=t"""in...,g......S_..ta=t=io""""n'---------- Unit --------~2=-----------

Name 3146 Sanatoga Road, Pottstown PA 19464 Work Order No. C0258726 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by ~E=x=el__o~n..:..N....

u__c __

le......

a .....

r _ _ _ _ _ _ _ _ _ __ Type Code Symbol Stamp _ _ _ ___:.N..::../:....:A_ _ _ __

Name Authorization No. _ _ _ _ _ _ _ _.:....:N::....:../A-'------

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date - - - - - - - - - - ' - N = / A - ' - - - - - -

Address

4. Identification of System: Reactor Core Isolation Cooling (System 049) =Li:.:..:n=e..:..N=o..:.. 49~-=2"'-F""'"08~1'--

. .:....:H=B=B-=-2=-=4=5_ _ _ _ _ _ _ _..:..V=al'-'-ve---=0.....

5. (a) Applicable Construction Code ASME Ill 19_lL_Edition, Summer 1973 Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N/A

6. Identification of Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board Identification Removed or Stamped No. Installed (Yes or No)

114-33435 3" Check Valve Velan Valve S/N 8323 N/A PO# 047407 2012 Installed Yes Disc

Traceability per Exelon stock code number.

7. Description of work: Replaced 3" RCIC swing check valve disc.

8. Tests conducted: Hydrostatic O Pneumatic O Nominal Operating Pressure 0 Exempt

Other O N/A PSI Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 FORM NlS-2 Page 13 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. C0258726 Sheet 2 of 2 FORM NIS-2 (BACK)

9. Remarks: Manufacturers data reports are traceable by Exelon work purchase order.

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _ _ _""""N""""A-'----------- Expiration Date_ _ _"""'N""""A'------------

Signed J.H. Kramer site weld administrator Date February 17 , 20.1.§__

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period 1'EtfMIU. l'f, 'Zo15 to fQt.,.._'I 1 11 Zol' , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Page 14 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner _ _ _ _ _E_xe~l~on~G~e_n_er~a~tio~n_C~om~pa~n~Y~*-L_LC~----~ Date _ _ _ _ _ _N_o~v~e_m_b_e_r_7~2~0_1~6_ _ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet ----'-_of _ _ _ _~2"----------

Address

2. Plant -----~Li~m~e~ri~ck~G_e_ne~r~a~tin_g_S~t=a=tio_n~------ Unit _ _ _ _ _ _ _ _ _2~---------

Name 3146 Sanatoqa Road. Pottstown. PA 19464 Work Order No. R1263275 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by ~E~x~el~o_n~N=u~c~le=ar~--------- Type Code Symbol Stamp _ _ _N~o~n~e"--------

Name Authorization No. _ _ _ _ _ _ _ N~ot_a.....,p_p_lic~a~b_le~---

3146 Sanatoga Road. Pottstown. PA 19464 Expiration Date ---------'-N=o~t=ap=p=li=ca=b=le=-----

Address

4. Identification of System RCIC & RCIC Turbine (System 049 and 050) Line No. HBB-207 PSE-050-2D001

5. (a) Applicable Construction Code ASME Ill 19filL_Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs I Replacement Activity 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components ASME Name of Name of Manufacturer National Other Identification Year Corrected, Code Component Manufacturer Serial No. Board Built Removed or Stamped No. Installed (Yes or No)

PSE-050-2D001 Continental

114-34519 Rupture Disc and Disc 8274420A N/A PO# 075361 2015 Installed No Vacuum support

Traceability per Exelon stock code number.

7. Description of work: Replaced RCIC turbine exhaust inboard rupture disc and vacuum support holder.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure* Exempt D Other D 1030 psi Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, N.J. 07007-2300 Page 15 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1263275 Sheet 2 of 2 FORM NIS-2 (BACK)

9. Remarks:_N_o~n_e~---------------------------------------

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _ _ _ _ _ _N ......A......__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expiration Date_ _ _ _ _~N ......A~

Signed J.H. Kramer site weld administrator Date November 7 ,20_16~-

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period Jvt.lf. * '2~ Z.ojh 1 to f'Jcv~&fJt 1 Zclb , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~~~-~ ~~

~~~~~~~~~-~~~~~~~Comm~~ons_~1-4~39_6~A~N~l~~P-A-3~0~45~~~~~~~~~~~

Date t-J~w~ ~ I l' 20--"-"----

National Board, State, Province, and Endorsements Page 16 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner -----=E~xe=l=on'-'--=G=e.:..:.ne=r-=a=tio=n-=-C=o=m~pa=n~Y~*=L=LC=------ Date _ _ _ _ ___.N...:.;o::;..:v=e.:..:.m=b=e.:....r7"'"-'-"2=0:....;.1=6_ _ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet ______ of _ _ _ _-=2___________

. Address

2. Plant -----=Li~m.....e;..;..;ri=ck:...:....=G=e.:..:.ne=r-=a=tin..:.;;q._S=t=a=tio=n-'--------- Unit - - - - - - - - - - = 2 = - - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown. PA 19464 Work Order No. R1258248 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --=E=x=el=o'-'-n-=-N=u=cl=e=ar_____________ Type Code Symbol Stamp _ _ _N~o_n~e_ _ _ _ __

Name Authorization No. _______ N_o_ta_p~p_li_ca_b_le_ _ __

3146 Sanatoqa Road. Pottstown. PA 19464 Expiration Date _ _ _ _ _ __....;,.N""o"'"t=ap""'p=li=c=ab=le=----

Address

4. Identification of System RCIC & RCIC Turbine (System 049 and 050) Line No. HBB-207 PSE-050-2D002

5. (a) Applicable Construction Code ASME Ill 19filL_Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs I Replacement Activity 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components ASME Name of Name of Manufacturer National Other Identification Year Corrected, Code Component Manufacturer Serial No. Board Built Removed or Stamped No. Installed (Yes or No)

PSE-050-2D002 Continental

114-34519 Rupture Disc and Disc 8274420A N/A PO# 075361 2015 Installed No Vacuum support

Traceability per Exelon stock code number.

7. Description of work: Replaced RCIC turbine exhaust outboard rupture disc and vacuum support holder.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure D Exempt I Other D N/A psi Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, N.J. 07007-2300 Page 17 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1258248 Sheet 2 of 2 FORM NIS-2 (BACK)

9. R e m a r k s : - - - ' N " " " " o = n " " " e = - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _ _ _ _ _---'N'"""'A:....:,__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expiration Date_ _ _ _ _-'N"""'A'""'

Signed J.H. Kramer site weld administrator Date November 7 I 20-..16....____

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period JvrJ£ 2.'t, , 2..c to NovEM&f&. 1.; 2D lb , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

---~ "'=-.. . :;. ;:::::::;>

_ _ __ __-__~

Inspector's Signature

_____ Commissions 14396 AN I PA3045 National Board, State, Province, and Endorsements Page 18 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ------=E~xe=lo=n-'--=G=e~ne=r=at=io=n......C~o=m..:..:.=pa=n~Y~*=LL=C=------ Date _ _ _ _ _ _A_u.... 0_us~t_1_7~.2_0_1~6_ _ _ _ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet _____ of ______2___________

Address

2. Plant _______L=im~e""""ric=k......G=e=n. . .e......ra=t.....

in...,q.._.S"""t=at""'"io--n--------- Unit - - - - - - - - - - = 2 = - - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order No. R112791 O Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by _E_x~el~o_n~N_u~cl_e~ar_ _ _ _ _ _ _ _ _ __ Type Code Symbol Stamp -------'-N"""/A=._ _ _ __

Name Authorization No. _ _ _ _ _ _ _ _..... N/__A_______

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date ----------'-'N"""/A....:.....,__ _ __

Address

4. Identification of System: Residual Heat Removal (System 051) Line No. GBB-201 Valve 051-2115B

5. (a) Applicable Construction Code ASME Ill 19-11..._Edition, Summer 1975 Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N/A

6. Identification of Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board Identification Removed or Stamped No. Installed (Yes or No)

Trace Code

114-85551 1-1 /2" Check Flowserve 43835-2 N/A PO# 257797- N/A Installed No Valve Disc S/N 85 848

Traceab1hty per Exelon stock code number.

7. Description of work: Replaced 1-1/2" RHR swing check valve disc.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure D Exempt

Other D N/A PSI Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 FORM NIS-2 Page 19 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1127910 Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _ _ _~N~A~-------- Expiration Date_ _ _~N~A~---------

Signed _--=-~~~.g_..--=-~-c\sl....=;_=--.J------~J~.~H~.~K~ra~m~e~r--=si~te~w~el~d~a~d~m~in~i~st~ra~t~o~r- Date August 17 , 201§__

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period N\ltv I~ 2ctb to Avws.~ ta, Z.01'1 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection~. - - - - - -

~~------------Commissions 14396 A N I PA 3045

~ National Board, State, Province, and Endorsements Date Av~V'if Ii; 20.....L.=l~'-----

Page 20 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner -----""E=xe=l=on:...;....;::;G=e~ne=r=a=tio....n~C=o=m..;..;.i;;.;pa=n~v~*=LL=C=------ Date -------'O=c=to=b=e::..:..r...::;9..._2=0"-'1:..;::5;.....__ _ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet -~-of _ _ _ _=2.___ _ _ _ _ _ __

Address

2. Plant -----=Li-.m....e"""ri=ck~G=e'"'"ne=r=at=in.... S a....__t...

a.....

tio-.n..___ _ _ _ _ __ Unit - - - - - - - - - - - - " 2 ' - - - - - - - - - -

Name 3146 Sanatoqa Road. Pottstown PA 19464 Work Order No. R1117651 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --"'E=xe=l=o'-'-n"'"'N=u=cl=e=ar.___ _ _ _ _ _ _ _ __ Type Code Symbol Stamp _ _ _ ____,_N..,./"-'A'------

Name Authorization No. - - - - - - - - " ' " ' N...... /A_..__ _ __

3146 Sanatoqa Road. Pottstown PA 19464 Expiration Date _ _ _ _ _ _ _ _.__N"""/A~----

Address

4. Identification of System:_C=or:..;::e.....;;S:;.a;p"""ra_,y.___ _ _ _ ___....{S....v'""s;.:.;:te::..:..m""'-=05=2=>- Line No. SP-GBB-213-03E PSV-052-2F012A

5. (a) Applicable Construction Code ASME Ill 19 74 Edition, Winter 1974 Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board Identification Removed or Stamped No. Installed (Yes or No)

Anderson N99912

114-58584 PSV-052-Greenwood 0007 N/A PO 063690 2014 Installed Yes 2F012A Crosby Anderson N99912 PSV-052-Greenwood 0003 N/A

114-58584 N/A Removed Yes 2F012A Crosby GBB-213-03E

114-93829 Piece# 31 Bonney Lot No.

N/A PO 009825- N/A Installed No Reducing Insert Forge 9438 3720 GBB-213-03E Heat No.

Piece# 30 Western Forge A093122 N/A

114-90662 N/A Installed No RF Flange & Flange Heat Code PO 339825-GLB-B-2 916

Traceability per Exelon stock code number and purchase order

7. Description of work: Replaced core spray relief valve

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D OtherO ___gz§_PSI Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 21 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1117651 Sheet 2 of 2 FORM NIS-2 (BACK)

9. Remarks: Manufacturers data reports are traceable by Exelon work order package.

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _ _ _ _ ____:_N=A-=------------------- Expiration Date_ _ _ _ _"'"'N...... A Signed J.H. Kramer site weld administrator Date October 9 I 2015 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by HSB Global Standards of Hartford Connecticut have inspected the components described in this Owner's Report during the period Av4us;- IO.; '2.olS to Oc"18ft. 21, *2...olS"' , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

---~**-*_~....,......"-----=~"-----------'-commissions

~

14396 AN I PA3045 National Board, State, Province, and Endorsements Date Ol-'lf Bet. Z..f.I 0 20JS:...

Page 22 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner _ _ _ _ _ Ex_e_lo_n_G~en_e~r~at~io_n_C~o~m~p_a~n-Y~*_LL_C~---~ Date -----~A~u_g-=u=st.:...1~6~.=2~01~6~-------

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet ----'-_of _ _ _ _=2_ _ _ _ _ _ _ __

Address

2. Plant --------=L=im:..:..=e.:..;..ric=k.:...G=e=n..:.::e:..;.;ra=t"""'in....

a-=S==ta=t=io"""n--_ _ _ _ __ Unit _ _ _ _ _ _ _ _ _2_ _ _ _ _ _ _ _ __

Name 3146 Sanatoqa Road. Pottstown PA 19464 Work Order No. R1336902 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --=E"'""xe .....1-=-on'-'-'-N=u=cl=e=ar'------------- Type Code Symbol Stamp _ _ _ _____.:.N..::../A:..;..__ _ __

Name Authorization No. _ _ _ _ _ _ _ _ _N.._./""-A..__ _ __

3146 Sanatoqa Road. Pottstown PA 19464 Expiration Date --------~N~/A______

Address

4. Identification of System: HPCI Turbine & Condenser (System 056) Line No. HBB-208 Relief Valve PSV-056-2F018

5. (a) Applicable Construction Code ASME Ill 19.H.__Edition, Summer 1974 Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board Identification Removed or Stamped No. Installed (Yes or No)

114-77937 PSV-056-2F018 Lonergan S/N 133975-2-1 N/A 1993 Installed Yes PO# 655922

Traceability per Exelon stock code number.

7. Description of work: Replaced HPCI barometric condenser relief valve.

8. Tests conducted: Hydrostatic O Pneumatic O Nominal Operating Pressure I Exempt 0 Other O -18 inch vacuum PSI TestTemp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 FORM NIS-2 Page 23 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1336902 Sheet 2 of 2 FORM NIS-2 (BACK)

9. Remarks : Manufacturers data reports are traceable by Exelon work purchase order.

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Type Code Symbol Stamp_ _ _ _. . . , : N . . . . : . : A - = - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

=-N=A-'----------- Expiration Date_ _ _.:...,:N"'""'A=------------

Signed J.H. Kramer site weld administrator Date August 16 , 201.§__

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period Aev..11.. 20. 2..pl' to !v'1.ih'f"" IS,. 2o , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~

_ _ _ _ _ _ _Commissions_-'-1-'-43=9=-.:6=--.:...A=-=-N""--'-1---=P"""A....:....;:::3-=-0-=-45=----------------

National Board, State, Province, and Endorsements Date_ _ _...../iv ~

v9r___ _._I.:&#-~-._ 20 l' Page 24 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ------=E=xe=l=on:...:....=G=e~n=er=a=tio=n-=-=C=om:...:...:.c.p=an~Y~*=L=LC=-----~ Date -------=D;...:e=ce=m-"=-be=r_1:..;:9;..L...:2=0~1=5_ _ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet ----'--of - - - - - = 2 ' - - - - - - - - - - - -

Address

2. Plant _ _ _ _ _ _ Li~m~e_ri~ck--'-G~e~ne~r~at~in......g._S~t~a~tio~n_ _ _ _ _ _ __ Unit - - - - - - - - - - = 2 = - - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown. PA 19464 Work Order No. R1142949 & R1281401 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by ~E~x~el~o~n_N~u~cl~e~ar~--------- Type Code Symbol Stamp _ _ _N~o_n~e_ _ _ _ __

Name Authorization No. ------"-'N=ot~a=p""'p=lic=a=b=le=-----

3146 Sanatoga Road. Pottstown. PA 19464 Expiration Date --------'-N=o'--=-t=ap=p=li=ca=b=-le=-----

Address

4. Identification of System Emergency Diesel Generator (System 092) Line No. 2A-G501-DR Combustion Air

5. (a) Applicable Construction Code Manufacturers Standard 19~Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs I Replacement Activity 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N/A

6. Identification of Components Corrected, ASME Name of Name of Manufacturer National Other Identification Year Removed, or Code Component Manufacturer Serial No. Board Built Installed Stamped No. (Yes or No) 2A-G501-DR Aeroquip Part Crankcase N/A

111-02437 N/A Installed No Aeroquip No. NH1600 Flexible Coupling C125 B0750 P.O. 080010

Traceability per Exelon stock code number and purchase order

7. Description of work: Replaced diesel generator engine crankcase ejector flexible coupling.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure I Exempt D Other D Test Pressure: 1.4 Inch Water Head Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030} may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, N.J. 07007-2300 Page 25 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1142949 & R1281401 Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

- - - - - - - - ' N ' " " " ' A ' - ' - - - - - - - - - - - - - - - - - - Expiration Date_ _ _ _ _-'N-"A'""'

Date December 19 I 2015 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of

'-'H=a"'"'rtf.:..;:o"'"'rd=..i....;:C:;..:o:;.;..n.:.:..;n=e=ct=ic=u:.::..t_ _ _ _ _ _ _ _ _ _ _ _.have inspected the components described in this Owner's Report during the period No~Se.<. 23 1 2.o IC- to JA1-1~1rt.y 't bJ f/, , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

_ _,.,,,,e:.:...._____,,....::::.--____.......,:::;___ _ _ _ _ _ _:___Commissions 14396 AN I PA3045 National Board, State, Province, and Endorsements Date_j_AW_v_~___,y,___~Y,_----'20 I

/'

Page 26 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner _ _ _ _ _E_x__ el~o_n~G~e_n~er~a~tio

......n~C~om~p~an~Y~*-L_LC~----- Date -----~F~e~b~ru=a""""rv~1~8~*~2~0......

16~------

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet -----=--of _ _ _ _=2_ _ _ _ _ _ _ __

Address

2. Plant -----=Li~m~e~ri~ck~G=e~ne=r~at=in....g._S~t=a=tio__n~------ Unit ___________2~---------

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order# R1321427 & R1311117 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by ~E~x=el=o~n~N=u=c=le=a~r_ _ _ _ _ _ _ _ _ __ Type Code Symbol Stamp -------'N-=/"""'A'-------

Name Authorization No. _ _ _ _ _ _ _ _...... N. /A_..__

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date _ _ _ _ _ _ _ _ _N~/~A_ _ _ __

Address

4. Identification of System : Emergency Diesel Generator (System-092 ) Line No. 2AG-JW 2A-P530

5. (a) Applicable Construction Code Manufacturer's Standard 19 N/A Edition,~Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repair I Replacement Activity: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components:

ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board Identification Removed or Stamped No. Installed (Yes or No) 2A-P530 SYZ 01567-A1-Jacket Water Colt Industries RX N/A

114-02451 N/A Installed No Circulating Pump 2A-P530 Jacket Water Colt Industries 541873 N/A

114-02451 N/A Removed No Circulating Pump

Traceability per Exelon part code number and manufacturer's serial number.

7. Description of Work: Replaced emergency diesel generator jacket water circulating pump.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D Pressure~ PSI Test Temp. ---1:::UA_°F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030} may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 27 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval Work Order# R1321427 & R1311117 Sheet 2 of 2 FORM NIS-2 (BACK)

9. Remarks: Jacket water pump S/N SYZ01567-A 1-RX was removed from 2B-P530 location under Exelon work order R1311117 in 2015.

Applicable Manufacturer's Data Reports to be attached The pump was rebuilt under work order R1311117 Activitv# 8. No pressure boundary parts were repaired or replaced.

CERTIFICATE OF COMPLIANCE I certify that the statements made in this report are correct and that this conforms to the requirements of the ASME Code, Section XI.

________N__A___________________ Expiration Date NA Signed J.H. Kramer site weld administrator Date February 18 , 2016 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period ~#\JCM.6"'- t.J,, l.ot S"'" to 6=.l"°'M't' I$ Z. I ' , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

---~..,_..~..,.....~--?~--..--=--___.2-~

inspec~ure

______ Commissions__1'-'4=3-=-96=--"""A"-'N'""""-'l'-----"-P"'"""A""""'3"""'0-'-4-=-5----------

National Board, State, Province, and Endorsements Date ftu,AM [1, 20-=(---

Page 28 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner -----=E=xe=l=on:..:....;::::G=e.:....:.ne=r=a=tio=n~C=o=m"'-=-pa=n~y~.=L=LC=----- Date ------=D:;...;:e=c=em:..:.=b=er'-1.:..;:9:;..i...:2=0..:....:15:0..--_ _ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet ----'-_of _ _ _ _=2_ _ _ _ _ _ _ __

Address

2. Plant -----=Li:.:....:.m..:..::e:..:..:ri=ck:..:...=G=e.:....:.ne=r=at=in..:.;;g"-'S=t=a=tio=n_,___ _ _ _ _ __ Unit _ _ _ _ _ _ _ _ _2_ _ _ _ _ _ _ __

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order No. R1174130 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by _E_x~el~o_n_N~u_cl_e~ar_ _ _ _ _ _ _ _ _ __ Type Code Symbol Stamp _ _ _ _ _N~/~A_ _ _ __

Name Authorization No. _ _ _ _ _ _ _ _..:...;N"""/A-'------

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date _ _ _ _ _ _ _ ____._N"""/A;...;......_ _ __

Address

4. Identification of System: Emergency Service Water (System 011) Line No. HBC-292 XJ-011-201 A

5. (a) Applicable Construction Code Manufacturers Standard 19 N/A Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) None

6. Identification of Components Repaired or Replaced and Replacement Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board No. Identification Removed or Stamped Installed (Yes or No)

Colt Industries, Part No.

114-78083 XJ-011-201 A Fairbanks Morse 12994129 N/A PO# 167610- N/A Installed No Engine 1340

Traceability per Exelon stock code number.

7. Description of work: Replaced diesel generator cooling water expansion joint for preventive maintenance.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D __filL_PSI Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 29 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1174130 Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _ _ _ _ _ _.....,N._A~---------------- Expiration Date_ _ _ _ _~N ....A.. . ,

Signed J.H. Kramer site weld administrator Date _ _ D_ec_e_m_b_e_r_1_9__ , 2015 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut

~H~a~rtf~o~r~d_C~oo~n~e___c~ti~w~t~----------~~w~~ci~fueoom~~~~~ri~d in this Owner's Report during the period tJo\lfAUL/i ZolS- to JAA>!API )21 Zolt , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer

shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~

~pector's Signature z- - Commissions_1._4~3~9~6~A"'""'-'-N"'-"-l_~P~A--3.....0.._.4~5_ _ _ _ _ _ __

National Board, State, Province, and Endorsements Date JAtruU.1 /i 201'_.

Page 30 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ------=E=x=el=o.:..:.n-=G=e..:..:n=er=a=tio=n~C==om:...:...:=p=an~Y~*=L=LC=----- Date ------=D:..::e=c=em:...:.=b=er'-1.:....:9:...i...=2=0..:..:15=--------

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet -~-of _ _ _ _2 = - - - - - - - - - -

Address

2. Plant -----=Li"""m=e"'"'ri=ck;..:....=G=e.:..:.ne=r=at=in..:.;:g"-'S""'t=a=tio=n.:.--_ _ _ _ _ __ Unit - - - - - - - - - - = 2 = - - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order No. R1174131 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --=E=x=el=o.:....:.n....:...N=u=c=le=a,_r- - - - - - - - - - - Type Code Symbol Stamp -------'N-=/"-'A'------

Name Authorization No. --------"'"'N"""'/A....:..,__ _ __

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date -----------'-N""'/"""A'------

Address

4. Identification of System: Emergency Service Water (System 011) Line No. HBC-295 XJ-011-202A

5. (a) Applicable Construction Code Manufacturers Standard 19 N/A Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) None

6. Identification of Components Repaired or Replaced and Replacement Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board No. Identification Removed or Stamped Installed (Yes or No)

Colt Industries, Part No.

114-78083 XJ-011-202A Fairbanks Morse 12994129 N/A PO# 167610- N/A Installed No Engine 1340

Traceability per Exelon stock code number.

7. Description of work: Replaced diesel generator cooling water expansion joint for preventive maintenance.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D ___Jill__PSI Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2in.x11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 31 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1174131 Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

_ _ _ _ _ _N_A_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expiration Date_ _ _ _ _N_A_

Signed J.H. Kramer site weld administrator Date _-=D=ec=e=m=b=e..,.r......1=9__ , 201§__

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut Hartford Connecticut have inspected the components described in this Owner's Report during the period No'1f.M8U ti ?...DIS- to ~~Y /Z.1 2.o/t , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this Page 32 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner _ _ _ _--=E=xe=l=on:..:.....;::G=e~n=er=a=tio=n..;...C==om;.:..:.i:.pa=n*y~.=L=LC=-----~ Date _ _ _ _ _...:..N=o;...;.v=em~b=er'-1.;...;1'-'-=2=01__5 " - - - - - - - -

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet _ ___..__of ______ 2 _ _ _ _ _ _ _ __

Address

2. Plant - - - - - = L i...... m......e. .ri. ......

ck____ G__e.ne

. . .__r__

at__in....,g._S__t__a__

tio__n__________ Unit - - - - - - - - - - = 2 = - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order# R1311117 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by ---"'E=x=el=o.n..;...N=u=cl ... __e = a r ' - - - - - - - - - - - - Type Code Symbol Stamp _ _ _ ____..N......l..... A.____ _ __

Name Authorization No. _ _ _ _ _ _ _ _.;. .;N"""/A. . :.,.__ _ __

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date -----------'-N=/A'-'------

Address

4. Identification of System : Emergency Diesel Generator (System-092 ) Line No. 2BG-JW 2B-P530

5. (a) Applicable Construction Code Manufacturer's Standard 19 N/A Edition,~Addenda, N/A Code Case

{b) Applicable Edition of Section XI Utilized for Repair I Replacement Activity: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components:

ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board Identification Removed or Stamped No. Installed (Yes or No) 2B-P530 Jacket Water Colt Industries 386339 N/A

114-02451 N/A Installed No Circulating Pump 2B-P530 STZ 01567-A1-Jacket Water Colt Industries RX N/A

114-02451 N/A Removed No Circulating Pump

Traceability per Exelon part code number and manufacturer's serial number.

7. Description of Work: Replaced emergency diesel generator jacket water circulating pump.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D Pressure __ 13_ PSI Test Temp. ___lliA_°F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030} may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 33 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval Work Order# R1311117 Sheet 2 of 2 FORM NIS-2 (BACK)

9. Remarks: Jacket water pump S/N 386339 was removed from 1B-P530 location under Exelon work order R1311115 in 2015.

Applicable Manufacturer's Data Reports to be attached The pump was rebuilt under work order R1311115 Activity# 10. No pressure boundarv parts were repaired or replaced.

CERTIFICATE OF COMPLIANCE I certify that the statements made in this report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Type Code Symbol Stamp_ _ _ _ _N __A

~N~A~--------------- Expiration Date NA Signed J.H. Kramer site weld administrator Date November 11 , _20_1~5__

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by HSB Global Standards of Hartford Connecticut have inspected the components described in this Owner's Report during the period Avt.v\T" J'f,? 2.of5" to Nevg~&~t. l3i* 2.DIS- , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

PA3045 Date_N~o_V!.A~8~E/l~/.......,~-*_20 IS" Page 34 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ------=E~xe=l=on--=G=e~ne=r=a=tio=n~C~o=m""""""pa=n~Y~*=LL=C--_ _ _ __ Date _ _ _ _ _....N__o__ve=m=be=r_1""'2"""-=20._1....5..___ _ _ _ __

Name 200 Exelon Way. Kennett Square PA 19348 Sheet _____ of _ _ _- - - ' 2 = - - - - - - - - - - -

Address

2. Plant -----=Li"""'m=e=ri=ck~G=e.:..:.;ne=r=at=in..:.;:q'"'S=t=a=tio=n"-------- Unit ----------=2..___ _ _ _ _ _ __

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order No. R1174134 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by __..;;::E...,.xe=l=on"""-'-'N""u=cl=e=ar.....__ _ _ _ _ _ _ _ __ Type Code Symbol Stamp _ _ _ _____.:,N..;,:./.;...;A'-------

Name Authorization No. - - - - - - - - " ' " " N.... IA........._ _ __

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date _ _ _ _ _ _ _ ____....N....../A.........__ _ __

Address

4. Identification of System: Emeraency Service Water (System 011) Line No. HBC-292 XJ-011-201 B

5. (a) Applicable Construction Code Manufacturers Standard 19 N/A Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) None

6. Identification of Components Repaired or Replaced and Replacement Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board No. Identification Removed or Stamped Installed (Yes or No)

Colt Industries, Part No.

114-78083 XJ-011-201 B Fairbanks Morse 12994129 N/A PO# 167610- N/A Installed No Engine 1120

Traceability per Exelon stock code number.

7. Description of work: Replaced diesel generator cooling water expansion joint for oreventive maintenance.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D 115 PSI Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 35 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1174134 Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. NA Expiration Date_ _ _ _ _.:. :N......

A Signed .L J.H. Kramer site weld administrator Date November 12 , 20_15__

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State mPro~~cl ~oo~w~ a~em~~~~---~H_S=B~G=l=~=a=l~S~~=n=d=a~~=s_ _ _ _ _ _ _ _ _ _ _ _ __

Hartford Connecticut in this Owner's Report during the period Av4'1S~ 11.f.. to IS-have inspected the components described to IJ1if1..SQ. Ii.. Zors , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Inspector's Signature Date JJ ov£"&U- 13,, 20J£.

Page 36 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ------=E=xe=l=on......... G=e.;.:.ne=r=a=tio=n~C=o=m""""""pa=n~Y~*=L=LC..__ _ _ __ Date _ _ _ _ _.....N..;..;;o"""v=em~b--er'--1"""2"""".=2--01..;..;5:;.....__ _ _ _ __

Name 200 Exelon Way Kennett Square PA 19348 Sheet -~-of _ _ _~2~---------

Address

2. Plant -----=Li""'"m=e=ri=ck..._G=en:..:.;e=r=at=in...a""""S""'t=at=io....n....__ _ _ _ _ __ Unit ----------=2'---------~

Name 3146 Sanatoqa Road. Pottstown PA 19464 Work Order No. R1174136 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by ___...E.....x__

el-.o.....

n..._N....u,_cl__

e=ar..__ _ _ _ _ _ _ _ __ Type Code Symbol Stamp _ _ _ ____..N..-1..... A..___ _ __

Name Authorization No. --------""'"'N""'"/A_,____ _ __

3146 Sanatoqa Road Pottstown PA 19464 Expiration Date _ _ _ _ _ _ _ ____.._N.../A.......__ _ __

Address

4. Identification of System: Emeraency Service Water (System 011) Line No. HBC-295 XJ-011-2028

5. (a) Applicable Construction Code Manufacturers Standard 19 N/A Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) None

6. Identification of Components Repaired or Replaced and Replacement Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board No. Identification Removed or Stamped Installed (Yes or No)

Colt Industries, Part No.

114-78083 XJ-011-2028 Fairbanks Morse 12994129 N/A PO# 167610- N/A Installed No Engine 1120

Traceability per Exelon stock code number.

7. Description of work: Replaced diesel generator cooling water expansion joint for preventive maintenance.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D 110 PSI Test Temp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 81/2in.x11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 37 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1174136 Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _________N___A__________________ Expiration Date_ _ _ _ _. ._.N..... A Signed J.H. Kramer site weld administrator Date _.......:....::N=ov.:..::e::.:..m::.:.:b=e=r....:.1=2__, 20_15__

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by_ _ _--'-'H=S=B"-'G=l=ob=a=l-=S=ta=n=d=a.:...:rd=s_ _ _ _ _ _ _ _ _ _ _ _ __

Hartford Connecticut have inspected the components described in this Owner's Report during the period A"r..vS1' I~ 1..ol'= to N-fAl,SM. 1,\. 2o1S- , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this Page 38 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ----~E~xe~l-...on.........,..G=e~n-...er~a=tio~n............

C__ om.........,p=an~y~.-=L=LC=-----~ Date --------'F"""e""'b""'ru=a=-ry~18=.'-=20=-1:....::6=-------

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet _ _ _ of ______2~--------

Address

2. Plant -----=Li""'"m=e"""ri=ck"'--=G=e""'ne=r-=at=in_..g,_S=t=a=tio=n""--------- Unit - - - - - - - - - - = 2 = - - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown. PA 19464 Work Order No. R1159699 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --"E~x=el=o.;..;.n..._N=u=c=le=a._r_ _ _ _ _ _ _ _ _ __ Type Code Symbol Stamp _ _ _:....::N=on:..:.;e=--------

Name Authorization No. ------"-'N=o..;;...ta=p_.p=li=ca=b""'le=-----

3146 Sanatoga Road. Pottstown. PA 19464 r__

Expiration Date _________N__o__t-=a....,pp__1c=ab__l__

e _ __

Address

4. Identification of System Emergency Diesel Generator (System 092) Line No. 2C-G501-DR Combustion Air

5. (a) Applicable Construction Code Manufacturers Standard 19~Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs I Replacement Activity 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components Corrected, ASME Name of Name of Manufacturer National Other Identification Year Removed, or Code Component Manufacturer Serial No. Board Built Installed Stamped No. (Yes or No) 2C-G501-DR Aeroquip Part Crankcase N/A

114-80605 N/A Installed No Aeroquip No. NH1625C Flexible Coupling C150 B0750 P.O. 038136

Traceability per Exelon stock code number and purchase order

7. Description of work: Replaced diesel generator engine crankcase ejector flexible coupling.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure I Exempt D Other D Test Pressure: 5.8 Inch Water Head Test Temp. 680 °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 81/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, N.J. 07007-2300 Page 39 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1159699 Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Type Code Symbol Stamp_______ NA.........__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __

Certificate of Authorization No. _ _ _ _ _ _ _ N_A_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expiration Date_ _ _ _ _ _ N_A Date February 18 ,20-'-16=---

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period J...,.,a,,y ll! 2.el'1 to fe,t.vH-'/ l'(t l.t:>1' ,and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

.,. ~,,,,c;;..._

-_. , . . ,; _ ___,,......,.~;;__...,.....=---------Commissions

~

14396 A N I PA 3045 National Board, State, Province, and Endorsements Date ~Bb#-'I li 20__..(' - -

Page 40 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner -----=E=xe=l=on'-'--=G=e.:..:.ne=r=a=tio=n~C=o=m"'-'=pa=n~y~.=L=LC=----- Date -------=-M=a=r=ch'-'--'-10""'--2=0"-1=-=6=--------

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet ~------~of _ _ _ _~2=---------~

Address

2. Plant -----=Li""'m=e;.:..:ri=ck""-=G=e.:..:.ne=r=at=in...:.;:g._S=t=a=tio=n-=--------- Unit - - - - - - - - - - = 2 = - - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown. PA 19464 Work Order No. R1286516 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by _E_x_el_o_n_N_u_cl_e_ar_ _ _ _ _ _ _ _ _ __ Type Code Symbol Stamp ------'N"""o=n...:.;:e=--------

Name Authorization No. _ _ _ _ _ _.:....:N=ot.:....:a=p=p=lic=a=b=le=-----

3146 Sanatoga Road. Pottstown. PA 19464 Expiration Date __________N=o...... t .....

aP...P.....li.....

ca=b.....le...__ __

Address

4. Identification of System Emergency Diesel Generator (System 092) Line No. 2C-G501-DR Combustion Air

5. (a) Applicable Construction Code Manufacturers Standard 19~Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs I Replacement Activity 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N/A

6. Identification of Components Corrected, ASME Name of Name of Manufacturer National Other Identification Year Removed, or Code Component Manufacturer Serial No. Board Built Installed Stamped No. (Yes or No) 2C-G501-DR Fairbanks Fairbanks

114-36702 Exhaust Manifold Morse Part N/A N/A Installed No Morse P.O. 167610-1282 Cap Screws (4) 91118069 2C-G501-DR Heat No.

Curtis Wright -

116-70852 Exhaust Manifold 251908 N/A N/A Installed No Nova P.O. 046745 Cap Screws (1) Trace No. 6E02

Traceability per Exelon stock code number and purchase order

7. Description of work: Replaced diesel generator engine exhaust manifold cap screws.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure D Exempt I Other D Test Pressure: N/A PSI Test Temp. N/A OF.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, N.J. 07007-2300 Page 41 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1286516 Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No._ _ _ _ _---'N:....:.A:....:.,__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expiration Date_ _ _ _ _-'N'""'A:....:.

Date March 1O ,20_16_ _

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of

"""'H=a"""rtf.:.;:o;..:.;rd=-.::C=o=n:.:...n=e=ct=ic=u=t_ _ _ _ _ _ _ _ _ _ _ _h.ave inspected the components described in this Owner's Report during the period ~ lc91 'Ze" to "41UH {o1 'Ult, , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~;.?rors~ Commissions 14396 A N I PA 3045 National Board, State, Province, and Endorsements Date_""'-'~~.=.s...a..H___,,_[O_,_iI _ _.20 / h Page 42 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ------=E~xe=l=on~G=e.;..:.ne=r=a=tio=n-=-C=o=m"""""'pa=n~Y~*=L=LC=-----~ Date _ _ _ _ _ _....:..M=a=r=ch'-'--=-8'""'2=0"""1"""6_ _ _ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet ----'--_of _ _ _~2=----------

Address

2. Plant -----=Li.;..:.m""'"e"""ri=ck"'--=G=e.;..:.ne=r=at=in.....g._S=t=a=tio=n""--_ _ _ _ _ __ Unit - - - - - - - - - - - = 2 = - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order# R1326515 & R1321427 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --=E=x=el=o.;..:.n-=-N=u=cl=e=ar=------------ Type Code Symbol Stamp _ _ _ _____,N-=/.:....:A'------

Name Authorization No. ---------=-N:.:...:./A-'------

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date _ _ _ _ _ _ _ ___;,,N"""/A'-'------

Address

4. Identification of System : Emergency Diesel Generator (System-092 ) Line No. 2CG-JW 2C-P530

5. (a) Applicable Construction Code Manufacturer's Standard 19 N/A Edition,~Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repair I Replacement Activity: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components:

ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board Identification Removed or Stamped No. Installed (Yes or No) 2C-P530 Jacket Water Colt Industries 541873 N/A

114-02451 N/A Installed No Circulating Pump 2C-P530 Jacket Water Colt Industries 386341 N/A

114-02451 N/A Removed No Circulating Pump

Traceability per Exelon part code number and manufacturer's serial number.

7. Description of Work: Replaced emergency diesel generator jacket water circulating pump.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D Pressure~ PSI Test Temp. ~°F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 43 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval Work Order# R1326515 & R1321427 Sheet 2 of 2 FORM NIS-2 (BACK)

9. Remarks: Jacket water pump S/N 541873 was removed from 2A-P530 location under Exelon work order R1321427 in 2015.

Applicable Manufacturer's Data Reports to be attached The pump was rebuilt under work order R1321427. No pressure boundarv parts were repaired or replaced.

CERTIFICATE OF COMPLIANCE I certify that the statements made in this report are correct and that this conforms to the requirements of the ASME Code, Section XI.

'--.....-----__,,,N""'A_,___ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expiration Date NA Signed J.H. Kramer site weld administrator Date March 8 , 2016 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut in this Owner's Report during the period J1rwAL1 I IJ to to l' lo" '

have inspected the components described MWB er, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this Date_ ____._M~AL"""--CH~~-'--20 It, Page 44 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner -----=E=xe=l=on:...:......=G=e~ne=r=a=tio=n~C=o=m"""""pa=n~Y~*=L=LC=-----~ Date -------=M=a"""'rc::..:...h=-=2=6:..i...=20=-1.:....:6=---------

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet -~-of _ _ _ _2~--------~

Address

2. Plant _ _ _ _ _ _ Li_m~e_ri~ck~G~e_ne~r~a~tin__,g,.__S~t~a~tio_n_ _ _ _ _ _ __ Unit -----------"'2,___ _ _ _ _ _ _ __

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order# R1323629 & C0208224 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by ~E~x~el~o~n~N~u~cl~e~ar_ _ _ _ _ _ _ _ _ __ Type Code Symbol Stamp _ _ _ _ _ N_/A_ _ _ __

Name Authorization No. --------""'"'N"""'/A-'------

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date --------~N"""'/A'-'------

Address

4. Identification of System : Emeraency Diesel Generator (System-092 ) Line No. 2CG-Lube 2C-P535

5. (a) Applicable Construction Code Manufacturer's Standard 19 N/A Edition,___Nffi_Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repair I Replacement Activity: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components:

ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board Identification Removed or Stamped No. Installed (Yes or No) 2C-P535 Lube Oil Colt Industries 1097576 N/A

114-79615 N/A Installed No Circulating Pump 2C-P535 Lube Oil Colt Industries 1401191 N/A

114-79615 N/A Removed No Circulating Pump

Traceability per Exelon part code number and manufacturer's serial number.

7. Description of Work: Replaced emergency diesel generator lube oil circulating pump.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D Pressure 5 inches Head Oil Test Temp. ____lli8_°F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 45 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval Work Order# R1323629 & C020B224 Sheet2 of 2 FORM NIS-2 (BACK)

9. Remarks: Lube oil pump S/N 1097576 was removed from 2C-P535 location under Exelon work order C020B224 in 2004.

Applicable Manufacturer's Data Reports to be attached The pump was rebuilt under work order C020B244. No pressure boundary parts were repaired or replaced.

CERTIFICATE OF COMPLIANCE I certify that the statements made in this report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Type Code Symbol Stamp._ _ _ __ , N " " A ' - ' - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Certificate of Authorization No._ _ _ _ _~N~A~--------------- Expiration Date NA Signed J.H. Kr mer site weld administrator Date March 26 , gQ1.§__

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler lnsoection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period JAM.lib(.\' II) 2...o I '1 to />/'..Mt. H f.C./ Z.C' I & , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI .

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~ture

~ =- . . . , . ""'----""--~ """---"---"-----Commissions._....:1_,.43=9..,,6'--'-A....,,_N,_,__,_I _.._P""'A,_,3=0-"45,.,___ _ _ _ _ _ _ __

National Board, State, Province, and Endorsements Date_ __,.M__,_,_AA.:........::...:CH:..i.-1.""'4~'_ _.20 I G Page 46 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ----~E~xe=l..... on'-'--""G=e~n=er~a=tio=n"'-C~om'""""'""pa=n~y~.~L=LC=----- Date _ _ _ _ _ _F._e=b""""r=ua=rv

...........1......

8. . . .2'""'0'""'1......

6_ _ _ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet _ _ _ of _ _ _ _2_ _ _ _ _ _ _ _~

Address

2. Plant -----=Li"""m"'"'e'""'ri=ck'-'--=G=e"""'"ne=r~a=tin"'"'g.,_S=t=a=tio=n-'--------- Unit - - - - - - - - - - = 2 = - - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order No. R1174656 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by ----"'E=x=el=o.;..;.n"'-N=u=c=le=a._r_ _ _ _ _ _ _ _ _ __ Type Code Symbol Stamp _ _ _ __...;N..:;./"'""'A'------

Name Authorization No. - - - - - - - - " ' - N = / A - ' - - - - - -

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date --------~N~/~A_ _ _ __

Address

4. Identification of System: Emergency Service Water (System 011) Line No. HBC-292 XJ-011-201 C

5. (a) Applicable Construction Code Manufacturers Standard 19 N/A Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) None

6. Identification of Components Repaired or Replaced and Replacement Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board No. Identification Removed or Stamped Installed (Yes or No)

Colt Industries, Part No.

114-78083 XJ-011-201C Fairbanks Morse 12994129 N/A PO# 167610- N/A Installed No Engine 1298

Traceability per Exelon stock code number.

7. Description of work: Replaced diesel generator cooling water expansion joint for preventive maintenance.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D 110 PSI TestTemp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 47 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1174656 Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No. _ _ _ _ _ _N:....:.:....:A'------------------ Expiration Date_ _ _ _ _-'N'""'"A .....

Signed J.H. Kramer site weld administrator Date _......:....Fe=b=ru=a=rv~1-=8__, 2016 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut

_ _ _ _ _ _ _ _ _ _ _H-'a~rtf~o~r_d~C~o-'nn~e~c~ti~cu=t~_ _ _ _ _ _ _ _ _ _ _have inspected the components described in this Owner's Report during the period f'-BR.uAtt.Y 191 lo" to fU/.ulfi,y lfJ 2.bl' , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this 14396 A N I PA 3045 National Board, State, Province, and Endorsements Page 48 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner -------=E=x=el=on'-'--=G=e~n=er=a=tio=n~C=o~m=p=an~Y~*~L=L=C_ _ _ __ Date -----"""F""'e=b:.:..ru=a=rv..........,_1=8.i....::2=0;....:.1-=6-------

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet -~~of _ _ _ _2 = - - - - - - - - - -

Address

2. Plant -----=Li""'"m=e=ri=ck"'--=G=e""'"ne=r=at=in...:..;;g._S=-t=a=tio=n-=---------- Unit - - - - - - - - - - = 2 = - - - - - - - - - - -

Name 3146 Sanatoga Road. Pottstown PA 19464 Work Order No. R1140030 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --=E=x=el=o.;..:.n...:..N=u=c=le=a""'"r_ _ _ _ _ _ _ _ _ __ Type Code Symbol Stamp ----~N_/_A~----

Name Authorization No. ---------=-N::...:/A....:..__ _ __

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date _ _ _ _ _ _ _ _ ___,_N..::../:...:A_ _ _ __

Address

4. Identification of System: Emergency Service Water (System 011) Line No. HBC-295 XJ-011-202C

5. (a) Applicable Construction Code Manufacturers Standard 19 N/A Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) None

6. Identification of Components Repaired or Replaced and Replacement Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board No. Identification Removed or Stamped Installed (Yes or No)

Colt Industries, Part No.

114-78083 XJ-011-202C Fairbanks Morse 12994129 N/A PO# 167610- N/A Installed No Engine 1298

Traceability per Exelon stock code number.

7. Description of work: Replaced diesel generator cooling water expansion joint for preventive maintenance.

8. Tests conducted: Hydrostatic O Pneumatic O Nominal Operating Pressure

Exempt 0 OtherO 110 PSI TestTemp. N/A °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 49 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/O No. R1140030 Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No._ _ _ _ _----'N'"""'A:...:,__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expiration Date_ _ _ _ _......:....;:N~A Signed J.H. Kramer site weld administrator Date ----'-F=eb=r=u=a~ry_1"'""8'---' 2016 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut

'"H...:.:a=rtf=o=r..;:;d._C=on:..:.:n..;.;:e=c=ti=cu=t'--_ _ _ _ _ _ _ _ _ _ _have inspected the components described in this Owner's Report during the period fi.&llvU.V ltft 2" ' ' to FE.llvAlt.8 /"' Zol' , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Page 50 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner ________E.... xe=l~on.......,...G~e~ne=r~a~tio~n....C~o=m........_pa=n~Y~*=LL=C~----- Date ------~O~ct~o~b=er~4"""-=2.... 16~------

0......

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet ---'--of _ _ __ _ _ . 2 = - - - - - - - - - -

Address

2. Plant _ _ _ _ __.Li..... m~e....

ric=k.....G.........,.en

.....e~r.....

at...in.....g.._.S""'t__

at__io......n_ _ _ _ _ _ _ __ Unit - - - - - - - - - - - -_ _ _ _ _ _ __

Name 3146 Sanatoqa Road Pottstown PA 19464 Work Order No. C0260141 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by --=E=x=el=o"""n.....N=u=cl=e=ar--_ _ _ _ _ _ _ _ __ Type Code Symbol Stamp ________N"""/"'-'A_ _ _ __

Name Authorization No. _ _ _ _ _ _ _ _.._N.... /A......__ _ __

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date - - - - - - - - - - ' - N = / A ' - ' - - - - - -

Address

4. Identification of System: Emeraency Service Water {System 011) Line No. HBC-292 XJ-011-201 c

5. (a) Applicable Construction Code Manufacturers Standard 19 N/A Edition, N/A Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) None

6. Identification of Components Repaired or Replaced and Replacement Components ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board No. Identification Removed or Stamped Installed (Yes or No)

Colt Industries, Part No.

114-78083 XJ-011-201C Fairbanks Morse 12994129 N/A PO# 167610- N/A Installed No Engine 1373

Traceability per Exelon stock code number.

7. Description of work: Replaced diesel generator cooling water expansion joint.

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D 104 PSI Test Temp. NIA °F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 51 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval W/0 No. C0260141 Sheet 2 of 2 FORM NIS-2 (BACK)

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and that this conforms to the requirements of the ASME Code, Section XI.

Certificate of Authorization No._ _ _ _ _ _N_A_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expiration Date NA Signed -.Url!!!~.U.'...L..-\J.~~*~~=--------~.:.O.:..n.Ll:lli.!.!lii!..!....1:~t...m~!i!fil!.!!!!!~fill!.L Date October 4 , 2016 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut Hartford Connecticut have inspected the components described in this Owner's Report during the period f 1§2 (Lv{l-(1,- ~ I , 1.o f 6 to D ctn 8£/l 5' 2s I l , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

...;'--- ~=....,.:;;

__ __..___o=;;;==:

___ c::::::o

___commissions 14396 A N I PA 3045 National Board, State, Province, and Endorsements Page 52 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval FORM NIS-2 OWNER'S REPORT FOR REPAIR I REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI

1. Owner _ _ _ _ _E_xe~l~on~G_e_n~er~a~tio_n_C~om~oa~n~Y~*-L_LC~----~ Date _ _ _ _ _ _N_o_v~e_m_b~e_r_1~0~2~0_1~6_ _ _ _ __

Name 200 Exelon Way. Kennett Square. PA 19348 Sheet ----'-~of _ _ _ _2=---------~

Address

2. Plant -----=Li~m~e~ri~ck~G~e~ne~r~a=tin.....,g,._S~t=a~tio~n~------ Unit --------~2~---------

Name

3146 Sanatoga Road. Pottstown PA 19464 Work Order# C0259924 & C0260714 Address Repair Organization P.O. No., Job No. etc.

3. Work Performed by ~E~x=el~o""'"n~N=u~cl~e=ar~--------- Type Code Symbol Stamp ----~N~/~A~----

Name Authorization No. _ _ _ _ _ _ _ _ _N~/A_ _ _ __

3146 Sanatoga Road. Pottstown PA 19464 Expiration Date ----------=-N=/A'-'------

Address

4. Identification of System : Emergency Diesel Generator (System-092 ) Line No. 2DG-AI R 2D-G501-DR

5. (a) Applicable Construction Code Manufacturer's Standard 19 N/A Edition,~Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repair I Replacement Activity: 2001 edition with addenda through 2003 (c) Applicable Section XI Code Case(s) N-686-1

6. Identification of Components:

ASME Name of Name of Manufacturer National Other Year Built Corrected, Code Component Manufacturer Serial No. Board Identification Removed or Stamped No. Installed (Yes or No) 2D-G501-DR Combustion Colt Industries 3024222 & N/A

118-03411 N/A Installed No Air 3026614 P.O. 087258 lntercoolers 2D-G501-DR YM-13362 &

Combustion Colt Industries YM-13363 N/A

118-03411 N/A Removed No Air lntercoolers

Traceability per Exelon part code number and manufacturer's serial number.

7. Description of Work: Replaced emergency diesel generator combustion air intercoolers

8. Tests conducted: Hydrostatic D Pneumatic D Nominal Operating Pressure

Exempt D Other D Pressure--1§..,§_ PSI (Combustion Air), Pressure Test Temp. ~°F.

NOTE: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size 8 1/2 in. x 11 in., (2) informa-tion in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This Form (E00030) may be obtained from the ASME Order Dept., 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 Page 53 of 54

Attachment 2 - NIS-2 Reports for end of third Inservice Inspection Interval Work Order# C0259942 & C0260714 Sheet 2 of 2 FORM NIS-2 (BACK)

9. Remarks:.__,_n=o.:....:n=e_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __

Applicable Manufacturer's Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in this report are correct and that this conforms to the requirements of the ASME Code, Section XI.

_ _ _ _ ____;.N""'A..:..,__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Expiration Date NA Signed J.H. Kramer site weld administrator Date November 1O , 2016 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Pennsylvania and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut of Hartford Connecticut have inspected the components described in this Owner's Report during the period M!~ I~ 1..o 1£ to ~cvfJtVJtt. '~1 lol' , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspectio~ig~ Commissions__ 1'- ~" ;" ' t~6o-n= a-' ~" "B-' ~"'-ar-1d' -,-s" '"t= " ' ~-'3.-p="0' :"' 5o- vi-nc_e_,_a_n_d_E_n_d_o_rs_e_m_e_n-ts-Date tJ&VW§t l~,I Page 54 of 54 2R14 Suppression Pool Inaccessible Areas Evaluation EC 0000620918 Page 1 of 8 DOCUMENT NO.: EC 0000620918 TITLE: 2R14 Suppression Pool Inaccessible Areas Evaluation PREFACE:

This Technical Evaluation is performed in accordance with CC-AA-309-101, Rev. 15. The Limerick suppression pool is safety related; therefore, an Independent Review will be performed. A Pre-Job Brief and Technical Task Risk/Rigor Assessment was performed for this evaluation in accordance with HU-AA-1212, Rev. 7. This review identified a Risk Rank of 1 (existing process reviews) based on a "Low" Consequence Risk Factor.

REASON FOR EVALUATION / SCOPE During refueling outage 2R14, visual examinations of the submerged suppression pool liner were performed as required by ASME Section XI, License Renewal Commitment 2701321-70 (Reference 12),

and the Limerick coating maintenance program. Visual examinations were performed in accordance with ASME Section XI, 2007 Edition through 2008 Addenda (Reference 1), Subsection IWE, Requirements for Class MC Metallic Liners of Class CC Components in Light-Water Cooled Plants. Complete inspection results can be found in the Limerick 2R14 Suppression Chamber Project Final Report (Reference 10).

The visual examinations of the submerged suppression pool liner plates identified degradation in the inaccessible areas. The areas are classified as inaccessible because the visual examination cannot meet the inspection angles due to components obstructing the view of the liner plates. These areas are behind and beneath the residual heat removal (RHR) and core spray (CS) suction strainers and around other structural components.

Since the visual examinations identified degradation in the inaccessible areas of the liner plates, procedure ER-AA-330-007 (Reference 2) was used to evaluate the condition. The procedure requires an evaluation to be performed in accordance with 10CFR50.55a (Reference 3).

In accordance with 10CFR50.55a, this technical evaluation is being performed to evaluate the acceptability of the inaccessible areas of the submerged portions of the Limerick Unit 2 suppression pool.

This technical evaluation will address the following in accordance with 10CFR50.55a(b)(2)(ix)(A):

1) The applicant or licensee must evaluate the acceptability of inaccessible areas when conditions exist in accessible areas that could indicate the presence of or could result in degradation to such inaccessible areas.

2) For each inaccessible area identified for evaluation, the applicant or licensee must provide the following in the ISI Summary Report as required by IWA-6000:

i. A description of the type and estimated extent of degradation, and the conditions that led to the degradation; ii. An evaluation of each area, and the results of the evaluation; and iii. A description of necessary corrective actions.

During the 2R14 visual examinations of the submerged suppression pool liner, two surface anomalies were identified and documented in IR 4003057 (Reference 8). These surface anomalies were small areas of liner plate that were reported to be raised upwards from the surrounding floor plates. This technical evaluation will also provide a final disposition of the two surface anomalies reported on the Limerick Unit 2 suppression pool floor plates. Additionally, an impression was identified inside the reactor pedestal immediately adjacent to the pedestal wall. This condition was documented and dispositioned in IR 4003418 (Reference 14).

Page 1 of 12 2R14 Suppression Pool Inaccessible Areas Evaluation EC 0000620918 Page 2 of 8 DETAILED EVALUATION 2R14 suppression pool dive activities were performed per work order 4289788 (Reference 9). The scope of work included desludging the entire suppression pool and visual examination of 100% of the submerged, accessible areas of the suppression pool. This work is required by License Renewal Commitment 2701321-70. The visual examinations of the suppression pool liner are performed in accordance with the requirements of ASME Section XI, 2007 Edition through 2008 Addenda, Subsection IWE. As such, areas that could not be viewed at an angle greater than 30-degrees from the plane of the component being inspected were documented as inaccessible areas. Therefore, a qualified visual examination could not be performed since adequate visual access could not be achieved. However, an unqualified visual observation of the areas was performed and documented by the divers to help assess the condition of the inaccessible areas.

Procedure ER-AA-330-007 was used to evaluate the inaccessible areas. The procedure requires an evaluation to be performed in accordance with 10CFR50.55a to determine the acceptability of the degradation in the inaccessible areas.

Refer to IR 2486892-02 (Reference 13) for the 2R13 Unit 2 inaccessible area evaluation required per 10CFR50.55a. This technical evaluation concluded that ECCS strainers must continue to be removed to allow access for inspection and recoating of the inaccessible areas behind the strainers. This will ensure that the requirements of License Renewal Commitment 2701321-70 are satisfied.

During 2R14 residual heat removal (RHR) suction strainer 2B1-F211 and 2B2-F211 were designated for removal from their respective penetrations to support inspection and recoating activities. The intent of the strainer removal was twofold:

1. Inspect the previously inaccessible wall/floor plates behind/beneath each strainer and;

2. Perform large area recoating prior to reinstallation of the strainers Due to interferences between the suppression pool downcomers and the rigging, neither the 2B1-F211 nor the 2B2-F211 RHR suction strainers were removed during 2R14. The decision was made to descope the RHR suction strainer work from 2R14 and perform large area recoat instead. Therefore no qualified ASME Section XI visual examinations of previously inaccessible areas were performed during 2R14.

Design Attributes The suppression pool is designed to have a metal liner that is supported by concrete. The liner is a membrane pressure barrier that functions to increase the containment integrity by retaining gasses and water within the containment during normal and accident conditions. At the time of construction a coating was applied to protect the liner from corrosion. The suppression pool liner is made up of 1/4 inch (250 mils) carbon steel plates (ASTM A 285) that are coated with a porous zinc coating.

The zinc coating protects the metal surface because the zinc preferentially sacrifices itself to the corrosion. As the zinc dissipates, the amount of protection of the metal liner decreases, and once the zinc is completely depleted, the protection stops. A number of locations in the Limerick Unit 2 suppression pool have completely depleted the zinc coating. With the loss of the protective coating, some areas on the liner plates have started to corrode.

An evaluation of the corrosion of the Limerick suppression pool was performed by Structural Integrity Associates, titled "Corrosion Evaluation of the Limerick Mark II Containment (Reference 4). This evaluation determined the corrosion occurring in the Limerick suppression pool is general corrosion (rust),

and not the more aggressive pitting corrosion damage mechanism. This corrosion can be over large areas (general corrosion) or localized over a smaller area (spot corrosion).

The inspection of the submerged portion of the suppression pool is performed by qualified divers. The inspectors perform a general visual (VT-3) inspection of the liner to identify areas of degradation. The inspectors then perform a detailed visual (VT-1) inspection of the degraded areas to determine the metal loss of the degraded areas. To perform a VT-1 inspection, the angle must be 30 degrees or greater from Page 2 of 12 2R14 Suppression Pool Inaccessible Areas Evaluation EC 0000620918 Page 3 of 8 the plane of the component being inspected per ER-AA-335-014-2008, VT-1 Visual Examination in Accordance with ASME 2007 Edition, 2008 Addenda (Reference 5). Additionally, the VT-1 inspection uses depth gages to measure the metal loss on the plates. Procedure ER-AA-335-018, Visual Examination of ASME IWE Class MC and Metallic Liners of IWL Class CC Components (Reference 6),

describes these inspections. The results of the inspections are compared to the owner defined pre-established acceptance criteria.

The Limerick acceptance criteria are contained in Limerick Specification NE-101 (Reference 7). The general corrosion allowance before requiring a metal repair is:

x General metal loss over a large area (diameter greater than 12.5 inches) greater than 125 mils.

x Localized metal loss (diameter less than or equal to 2.5 inches) greater than 187.5 mils.

At the time of construction, the design thickness of the suppression pool plates was a minimum of 250 mils. The metal loss values given for the acceptance criteria above assume the plates had an initial thickness of 250 mils at the time of construction. Since the plates are thicker, the allowable metal loss would increase by the amount of metal over 250 mils.

During 2R14, four plates had ultrasonic thickness measurements taken to satisfy the requirements of license renewal commitment 2701321-70. The 2R14 thickness readings of sound (non-degraded) areas ranged from a low of 252 mils to a high of 297 mils (see attached NDE Report BOP-UT-17-032). The results of the 2R14 ultrasonic thickness measurements demonstrate that the floor and wall plates remain very close to if not above the initial minimum wall thickness of 250 mils following approximately 30 years of service.

Description of Degradation The corrosion identified in the Limerick Unit 2 suppression pool is categorized as general corrosion, localized general corrosion or tiger striping. A description of each type of corrosion is provided below.

x General Corrosion: Also known as uniform corrosion. This term refers to corrosion that completely covers a surface of more than several square inches. Metal loss is generally uniform across the exposed area and typically does not involve much section loss.

x Localized General Corrosion (Spot Corrosion): Spot corrosion is simply general corrosion that presents itself as localized spots of exposed substrate on a coated surface. Spots are generally less than a few square inches each but may be up to several square inches. Metal loss is generally uniform across each exposed area and typically does not involve much section loss.

Spot corrosion should not be confused with pitting corrosion which is a highly localized and accelerated degradation of base metal typically in the presence of an aggressive anion such as chlorine.

x Tiger Striping: Relative to coatings in immersion service, tiger striping is a condition unique to inorganic zinc-rich coatings. It is a coating condition that is found on vertical surfaces, typically in stagnant, underwater conditions. In the early stage, it appears in alternating vertical light and dark stripes within the coating itself. The light stripe usually acts as the cathode and the dark stripe as the anode. Over time, zinc in the anodic areas is depleted/consumed giving way to corrosion of the substrate. It is essentially general corrosion in dense vertically aligned corrosion nodules. Like general corrosion, associated metal loss is typically minor.

2R14 Inspection Results and Evaluation The corrosion rates of the Limerick Unit 2 suppression pool have been very low. This is due to the inert atmosphere of the suppression pool during plant operations and the water quality of the suppression pool.

The corrosion of the submerged portion of the suppression pool liner is being trended by the establishment of several corrosion evaluation grids. Inspection of these areas was performed during outages in 1995, 1997, 2009, 2013, and 2017 for Limerick Unit 2. The data obtained from these Page 3 of 12 2R14 Suppression Pool Inaccessible Areas Evaluation EC 0000620918 Page 4 of 8 inspections suggests that the metal liner with no coating is experiencing an average general corrosion rate of approximately 1 to 2 mils per year (Reference 10).

During 2R14, the inspector identified degradation throughout the accessible areas of the Limerick Unit 2 suppression pool. This would suggest that degradation is also present in the inaccessible areas of the Limerick Unit 2 suppression pool. The inspectors performed an unqualified observation of the degradation in the inaccessible areas. The observations were considered an unqualified observation because adequate visual access could not be achieved in accordance with ER-AA-335-014-2008.

Although the inspections were unqualified, the inspectors were able to perform an assessment of the condition of the degradation in the inaccessible areas.

The following is a list of plates identified with inaccessible areas during 2R14. This information was obtained from the Limerick 2R14 Suppression Chamber Project Final Report (Reference 10). Based on the unqualified observations of the inaccessible areas behind/beneath the ECCS suction strainers, it is concluded that the general and spot corrosion in these areas is comparable in magnitude and severity to the corrosion observed in the adjacent, accessible areas.

Suppression Pool Liner Plates with Inaccessible Areas 2-WP-01B 2-WP-05A 2-WP-07B 2-WP-02A 2-WP-05B 2-WP-09A 2-WP-02B 2-WP-06A 2-WP-09B 2-WP-03A 2-WP-06B 2-WP-10A 2-WP-04B 2-WP-07A 2-WP-10B General corrosion and tiger striping are present in many of the areas adjacent to the ECCS suction strainers. The maximum metal loss experienced due to general corrosion or tiger striping in any of the adjacent areas is 30 mils. The general corrosion rate of the submerged portion of the suppression pool liner is being trended and is between 1 to 2 mils per year based on pit grid data collected during several ASME Section XI, IWE inspections performed between 1995 and 2017 (Reference 10). This measured corrosion rate is in line with the corrosion rate of 1.8 mils per year calculated by an engineering analysis for uncoated carbon steel components in the suppression pool for the Limerick specific suppression pool water chemistry and operating temperature (Reference 4). The maximum corrosion rate experienced by any of the pit grid location since the last ASME Section XI inspection (2R12) is 3.1 mils per year. If the maximum corrosion rate of 3.1 mils per year is assumed, the maximum metal loss experienced due to general corrosion in the inaccessible areas of the Limerick Unit 2 suppression pool will be 42.4 mils (30 mils + 4 years x 3.1 mils/year) by the start of 2R16, which is the next scheduled containment inservice inspection outage. This is still well below the metal repair criteria for general corrosion of 125 mils metal loss.

In general, areas of spot corrosion exhibit more metal loss than areas of general corrosion. Wall plate 2-WP-06B is the adjacent area experiencing the most severe spot corrosion. During 2R14, an indication of spot corrosion with a metal loss depth of 65 mils was identified on wall plate 2-WP-06B. This exceeds the recoating criteria for spot corrosion and the area was repaired in 2R14. If the maximum measured general corrosion rate of 3.1 mils per year is assumed, the maximum metal loss experienced due to spot corrosion in the inaccessible areas of the Limerick Unit 2 suppression pool will be 77.4 mils (65 mils + 4 years x 3.1 mils/year) by the start of 2R16. This is still well below the metal repair criteria for spot corrosion of 187.5 mils.

Additional areas of spot corrosion in excess of 65 mils have been identified in the Limerick Unit 2 suppression pool during previous inspections. The most significant metal loss measured to date in the Limerick Unit 2 suppression pool was on plate 2-WP-01B. This plate experienced a single indication of spot corrosion with a measured metal loss of 117.2 mils. This area of spot corrosion was discovered and recoated during refueling outage 2R12 (2013). If an area of spot corrosion with a metal loss of 117.2 mils were to exist in any of the inaccessible areas and if the maximum metal loss rate of 3.1 per year is assumed, the depth would increase to 129.6 mils (117.2 mils + 4 years x 3.1 mils/year) by 2R16. This worst case predicted pit depth is still below the depth that would require a base metal repair (187.5 mils).

Page 4 of 12 2R14 Suppression Pool Inaccessible Areas Evaluation EC 0000620918 Page 5 of 8 One of the corrective actions resulting from the evaluation following 2R13 was to remove suction strainers to perform visual examinations and recoat as required during future refueling outages. During 2R14, RHR suction strainers 2B1-F211 and 2B2-F211 were scheduled to be removed so that the areas behind/beneath the strainers would be made accessible for visual examination and large area recoating.

However, while attempting to remove the strainers from their penetrations, there was interference between the rigging and the downcomers. Due to the interference, no suction strainers were removed during 2R14, and no inspections of previously inaccessible areas were performed.

Corrective Actions Following the 2R12 refueling outage, two actions to monitor and correct corrosion in the inaccessible areas of the suppression pool were pursued:

Action 1 - Develop a method to perform remote inspections of the inaccessible areas.

This action is to develop a method to perform remote inspections of the inaccessible areas around the ECCS suction strainers. A method must also be developed and qualified to apply coating in the inaccessible areas, in order to repair the coating and arrest any further degradation that is identified.

(Reference IR 1364843-10). This recommendation is no longer being pursued due to the inability to perform any recoating work with the ECCS strainers in place. Therefore, it was decided to pursue Action 2, to remove suction strainers, perform inspections of the inaccessible areas, and recoat areas behind the strainers while they are removed. A long term plan has been developed and presented to station management to gain alignment on required actions prior to the period of extended operation.

Action 2 - Remove the suction strainers to perform inspections and recoat as required.

If a remote inspection of the inaccessible areas cannot be performed, the station will remove two suction strainers each outage to make the inaccessible areas accessible (Reference IR 1502066-05). The selection of the suction strainers for removal will be based on the condition of the accessible areas around the suction strainers. If adverse conditions are identified during the inspection of the inaccessible areas, the inspection scope will be expanded to other suction strainers. When a suction strainer is removed, the degraded areas will be inspected to determine the extent of corrosion. After the areas are inspected, the areas will be surface prepped and recoated to stop the corrosion.

During 2R14, no suction strainers were removed, and no inspections of the previously inaccessible areas were performed. However, due to the fact that spot corrosion in the inaccessible areas in excess of 50 mils has been identified in previous outages, ECCS strainers must continue to be removed to allow access for inspection and recoating of the inaccessible areas. This will ensure that requirements of license renewal commitment 2701321-70 are met prior to and entering the period of extended operation.

Evaluation of Reported Plate Surface Anomalies During large area recoating of the floor plates, two surface anomalies were reported (Reference 8).

These areas were described by the divers as areas where the plate had an upward deflection from the normal plane of the plate. The dimensions and location of the two surface anomalies are provided below.

Anomaly #1 2-FP-03B-2-1 Location 2-FP-03B annuls area at 110 degrees Size 4 x 8 Max Deflection 1/4 Anomaly #2 2-FP-08C-3-7 Location 2-FP-08C annulus area at 180 degrees Size 8 x 12 Max Deflection 3/8 An ultrasonic examination of each surface anomaly was performed in order to assess the thickness of the suppression pool liner plate in these areas. Ultrasonic examination readings were obtained by having the Page 5 of 12 2R14 Suppression Pool Inaccessible Areas Evaluation EC 0000620918 Page 6 of 8 diver position the UT probe per the direction of the certified inspector who interpreted the results. The tables below provide the results of the ultrasonic examinations for each surface anomaly.

Surface Anomaly #1, (6 readings were taken along the length and 3 across the width)

Floor plate 2-FP-03B-2 Average wall thickness: 0.263 0.268 0.261 0.291 (max) 0.259 0.258 0.261 0.266 0.259 0.261 0.254 0.255 0.252 (min) 0.267 0.266 0.263 0.261 0.270 0.260 Surface Anomaly #2, (6 readings were taken along the length and 7 across the width)

Floor plate 2-FP-08C-3 Average wall thickness: 0.275 0.271 0.272 0.269 0.281 0.279 0.276 0.272 0.269 0.271 0.288 0.281 0.281 0.271 0.272 0.272 0.273 0.277 0.281 0.272 0.275 0.277 0.269 0.272 0.271 0.276 0.277 0.275 0.280 0.278 0.277 0.274 0.276 0.275 0.278 0.280 0.271 0.270 0.269 0.268 (min) 0.297 (max) 0.275 0.279 The suppression pool liner plate material specification (ASTM A 285) references ASTM A 20 (Reference 11), General Requirements for Steel Plates for Pressure Vessels, which provides the permissible variations in thickness for steel plates ordered to thickness. The minimum wall thickness recorded on floor plate 2-FP-03B was 0.252 inches while the minimum wall thickness recorded on floor plate 2-FP-08C was 0.268 inches. The minimum wall thickness required for the suppression pool liner plates at the time of construction was 0.250 inches. The minimum wall thickness required for structural integrity of the liner plate for general corrosion is 0.125 inches. The maximum reading recorded during the ultrasonic examination of the two surface anomalies was 0.297 inches. The maximum wall thickness recorded during ultrasonic examination of the surface anomalies is within the permissible variation (0.250 inch +

1.75*0.03 inch = 0.30 inch max) and is therefore not a concern.

An impression was identified in the annulus area of the reactor pedestal immediately adjacent to the pedestal wall at approximately 180 degrees (Reference 14). The area was described as a 115 mill impression/indention in the liner plate 1.5 inches by 3.5 inches in size. The 115 mil depth includes approximately 30 mils of corrosion at the bottom of the impression. UT thickness readings were taken to evaluate the area. A total of 3 UT thickness readings were taken of the surrounding plate with an average value of 0.759 inches recorded. An additional UT thickness reading was taken in the area of the impression with a value of 0.644 inches recorded. It was determined that this condition is not service induced and is most likely evidence of a repair performed during original construction. A full description and disposition details are available in IR 4003418 (Reference 14).

Based on the plate thickness measurements attained during 2R14, the surface anomalies identified on floor plate 2-FP-03B and 2-FP-08C and the impression identified on floor plate 2-FP-02E-PED have significant margin available to all established repair criteria, are acceptable for continued service, and have no negative impact on the ability of the suppression pool floor plates to perform their intended function. These conditions do not appear to be service induced and are likely due to fit up and fabrication of the suppression pool liner or repairs performed during original construction.

Page 6 of 12 2R14 Suppression Pool Inaccessible Areas Evaluation EC 0000620918 Page 7 of 8 CONCLUSIONS / FINDINGS Based on the 2R14 ASME Section XI inspection and the unqualified observations of the of the inaccessible areas behind and beneath the ECCS suction strainers, the spot corrosion and general corrosion experienced in the inaccessible areas of the Limerick Unit 2 suppression pool is the same magnitude and severity as the accessible areas. With the low corrosion rate and current measured liner plate thickness data, continued operation with corrosion in the inaccessible areas of the Limerick Unit 2 suppression pool remains acceptable through at least 2R16 (next required inspection). Additionally based on the data gathered during 2R14 and a review of design information, the surface anomalies identified on floor plates 2-FP-03B, 2-FP-08C, and 2-FP-02E-PED will not impact the function of these plates due to the significant margin that is available to all established repair criteria and, therefore, are acceptable for continued service. During the next refueling outage (2R15), the actions identified to inspect and recoat the inaccessible areas of the Limerick Unit 2 suppression pool will continue to be implemented to ensure compliance with the requirements of license renewal commitment 2701321-70.

IR 3966380-33 was generated to determine the ECCS suction strainers to be removed during 2R15 and ranking of plates for large area recoat based on the as-left conditions.

REFERENCES:

1. ASME Section XI 2007 Edition through 2008 Addenda

2. ER-AA-330-007, Visual Examination of Section XI Class MC Surfaces and Class CC Liners, Revision 11

3. 10CFR50.55a, Codes and standards, Revision December 2015

4. Structural Integrity Associates Report 1101502.401,Corrosion Evaluation of the Limerick Mark II Containment, Revision 0 (IR 1364843-07)

5. ER-AA-335-014-2008, VT-1 Visual Examination In Accordance with ASME 2007 Edition, 2008 Addenda, Revision 0

6. ER-AA-335-018, Visual Examination of ASME IWE Class MC And Metallic Liners of IWL Class CC Components, Revision 12

7. Limerick Specification NE-101, Coating And Liner Inspection/Coating Repair of Suppression Chambers, Revision 7

8. IR 4003057, Bulges Found In Suppression Pool Liner Floor Plates

9. Work Order 4289788, Inspect Suppression Pool Coatings

10. 2R14ISI6 Limerick 2R14 Suppression Chamber Project, April 2017

11. ASTM A20/A20M, Standard Specification for General Requirements for Steel Plates for Pressure Vessels

12. License renewal commitment 2701321-70 (previously T04743), ASME Section XI, Subsection IWE.

13. 2R13ISI6, 2486892-02, Limerick 2R13 Suppression Chamber Project, April 2015.

14. IR 4003418, Impression Found on Suppression Pool Liner Plate 2-FP-02E-PED ATTACHMENTS:

1. NDE Data Report BOP-UT-17-032, UT Thickness Examination Data Sheets (4 pages)

Attachment 1 BOP-UT-17-032.pdf Page 7 of 12 2R14 Suppression Pool Inaccessible Areas Evaluation EC 0000620918 Page 8 of 8 PREPARER: M. Weis Date: See Passport Milestones INDEPENDENT REVIEWER: M. Karasek Date: See Passport Milestones Independent Reviewer Comments:

I have performed an Independent Review of this technical evaluation per CC-AA-309-101. I have reviewed the reference documents and agree with the inputs. The outputs, conclusions, and actions are reasonable and well supported by the inspection results from 2R14. An Independent Review was performed by an individual qualified per N-AN-ENG-CERT-PG04 (ISI/CISI/Component Supports) who is familiar with the 10CFR50.55a requirements for evaluating inaccessible areas of the suppression pool.

Minor comments were made and have been incorporated.

APPROVER: T. Ryan Date: See Passport Milestones Page 8 of 12

,, Exelon ULTRASONIC THICKNESS EXAMINATION Attachment 3 Site/Unit: LIM 2 Procedure: ER-AA-335-004 Outage No.: N/A Summary No.: NDE-056 Procedure Rev.: 7 Report No.: BOP-UT-17-032 Workscope: BOP/Li2R14 Work Order No.: 04289788-70 Page: 1 of 4 Code: Engineering Direction Cat./ltem: N/A Location: U2 Suppression Pool Drawing No.: N/A

Description:

Suppression UT System ID: ~0~6~0 ______________________________________________________________________________________________________

Component ID: Supression Pool Size/Length: N/A Thickness/Diameter: N/A Limitations: N/A Component File No.: N/A Start Time: 1400 Finish Time: 1830 Calibration Information Partitioning Information Component Information Calibration Thickness (In) Calibration Times / Initials Component Begin/Col/Row Ending/Col/Row Component Geometry: Wall & Floor Actual Measured M. UPST Ext. N/A N/A Outside Diameter: N/A Grid Size: NIA Start: 1405 EP 0.100 0.100 -N/A

- Main UPST. N/A N/A Page 9 of 12 Max. Thickness: N/A Min. Thickness: N/A Verify: N/A 0.200 0.200 Main N/A N/A Tmin.:

Verify: Nominal Thickness: N/A N/A 1620 EP Main DNST. N/A N/A 2R14 Suppression Pool Inaccessible Areas Evaluation 0.300 0.299 Verify: N/A N/A Min. Thickness Location: N/A 0.400 0.399 M. DNST Ext. N/A N/A Final: 1835 EP Max. Thickness Location: N/A 0.500 0.500 Branch N/A N/A Branch Ext. N/A N/A Surface Condition: As Found Coated Instrument: Temp. Tool:

Transducer: Reference/Simulator Block:

Manufacturer: Olympus Manufacturer: EXTECH Manufacturer: Panametrics Serial No.: 24398 Model: 38 DL Plus Serial No.: 12129510 Serial No.: 809839 Type: 1018 STEEL Serial No.: 100093311 Size: .434" Freq.: 5MHz 0 F Couplant:

G~n: 62dB Ref./Simulator Block Temp.: 76 Model: D7906-SM Type: Water EC 0000620918, Attachment 1, Page 1 of 4 Range: 1.0" # of Elements: Material/Component Temp.: 79 Dual °F Batch No.: N/A Comments/Obstructions: Performed UT exam on the floor and wall plates according to the WO instructions Results: Accept D Reject D Info~ See supplemental sheet for UT thickness readings.

Examiner Level II Signature Date Reviewer Signature Date Petersen, Eric D. 4/24/2017 Robideau, Kim R. 4/26/2017 Examiner Level N/A Signature Date Site Review Signature Date N/A Newcomb, II, James L. 4/26/2017 Other Level NIA Signature Date ANll Review Signature Date N/A N/A

Supplemental Report Exelon Report No.: BOP-UT-17-032 Attachment 3 Page: 1 of 4 Summary No.: NDE-056 Sketch or Photo: O:\Outage Data\Limerick\2R14\BOP\Pictures\NDE-056 L2R14.UT.Locations_001.jpg

~

o* Exelon Nuclear Corporation ]:

I LIMERICK GENERATING STATION j Unit 2 Suppression Chamber I Dent: 1.5" x 3.5" 115-mil indentation (including <30 mils metal loss). Near pedestal wall at approx 180° Az.

Bulge: 4in. x Sin. -110*

Az; 8 11 from wall with approx 1/4 " deflection.

Page 10 of 12 pot Corrosion on Leak Chase @ -240° Az; 2R14 Suppression Pool Inaccessible Areas Evaluation 3/4" dia. Metal loss

<101mils.

90*

EC 0000620918, Attachment 1, Page 2 of 4 Bulge: 8" x 12" @ -1so Az; 0 3/8" deflection. Orientation runs radially across annulus.

Rev.1 Limerick Unit 2 SIC Project - 2017 Floor Panel Arrangement 0 Plant North 1llO"

Exelon Supplemental Report Report No.: BOP-UT-17-032 Attachment 3 Page: 1 of 4 Summary No.: NDE-056 Sketch or Photo: O:\Outage Data\Limerick\2R14\BOP\Pictures\NDE-056 UT Data Sheet_001.jpg UT Measurements Suppression Pool Panel UT Data

"")3t!j~'1'~"'"'~**~* ...... ,~~""r~~~~~~.

.---.');, ~ *~...:k UT Mea su em ents *.::**** :.;~.:;x: .

Page 11 of 12

- -:~*:::f~~'.~::~.~~~'.:*;*~tJO~~~t;:;1~T~~~::;.~**~,~:-:; ~~

2R14 Suppression Pool Inaccessible Areas Evaluation Sound Steel Gen. Corr. Area Area 1 2-FP-028-2 45 11 SLC,30 11 WLC 0.269 0.268 2 2-FP-08C-3 72 11 SLC I 37"ELC 0.242 0.272 11 3 2-FP-09C-3 23" SLC, 76 ELC 0.259 0.271 EC 0000620918, Attachment 1, Page 3 of 4 4 2-FP-OlE-Ped 46" SLC, 72" WLC 0.291 0.296

Supplemental Report Exelon Report No.: BOP-UT-17-032 Attachment 3 Page: 1 of 4 Summary No.: NDE-056

~~~~~~~~~~~~~~~-

Sketch or Photo: O:\Outage Data\Limerick\2R14\BOP\Pictures\NDE-056 UT Data Sheet Tab 2_001.jpg UT Data at Indication Locations Top orientation toward: lA-North West i----+---~1-----+----+----+-----+----10soegree Floor_Plate 212-FP-03B-2-1in the annulus area at approx 110-1 Bulge Readings in 2" increments FP-03B-2 1 deg Az; 8" from wall with approx 3 ... 67 0.263 I 0.261 1/4 "deflection. 4 JI *rm@mmn M:mmtll*1 Page 12 of 12 Indication Description Comments ID 2R14 Suppression Pool Inaccessible Areas Evaluation

~Top orientation toward: 180 Degree 1A-Sin. x 12in. Bulge indication. 2 0.272 0.269 0.271 0.288 0.281 I 0.281 North West 2 I Bulge IFP-OBC-3 1

Floor_Plate 2 2-FP-OSC (ocated in ann~lus are~ at 180-deg Az. Approx 3/8 deflection; 3

4 0.271 0.272 0.272 0.275 0.272 0.277 0.273 0.269 0.277 I n "Jsz1 I Readings in 2" increments 0.272 7

Orientation runs radially across 5 0.276 0.277 0.275 0.280 0.278 annulus area. 6 0.274 0.276 0.275 0.278 0.280 .

7 0.270 0.269 0.268 0.297 o.21s I 0.219 EC 0000620918, Attachment 1, Page 4 of 4 1 0.644 0.760 115-mil Dent (includes <30 mils 3 I Dent Floor_Plate 1FP-0 E 21 2-FP-02E jmetal loss). 1.Sin. x 3.Sin. Near "A" Readings= Bottom of dent.

2 "B" Readings= Adjacent area of panel pedestal wall at approx 180-deg Az.

2 0.759 0.758 IFloor_Plate 2 2-FP-02E I 4 1 spot Corrosion FP-02E-PED Spot corrosion 0.75in. dia. Metal loss

<101mils. Located on LC@ 240-deg Az.

1 0.177 0.178 I I I l"A" & "B" Readings taken adjacent to indication

ML17237A021

Contents

Text

Subject:

SUMMARY

REFERENCES:

Description:

Navigation menu

ML17237A021

Text

Subject:

SUMMARY

REFERENCES:

Description:

Navigation menu

Search