MNS-16-056, License Amendment Request, One-Time Extension of Appendix J Type a Integrated Leakage Rate Test Interval, Response to Request for Additional Information

License Amendment Request, One-Time Extension of Appendix J Type a Integrated Leakage Rate Test Interval, Response to Request for Additional Information

ML16193A657
Person / Time
Site:	McGuire, Mcguire
Issue date:	06/30/2016
From:	Capps S Duke Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
MNS-16-056, TAC MF7407, TAC MF7408
Download: ML16193A657 (55)

Text

(-..DUKE

~JENERGY Serial No: MNS-16-056 June 30, 2016 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

Subject:

Duke Energy Carolinas, LLC (Duke Energy)

McGuire Nuclear Station, Units 1 and 2 Docket Nos. 50-369 and 50-370 License Amendment Request Steven D. Capps Vice President McGuire Nuclear Station Duke Energy MGOlVP I 12700 Hagers Ferry Road Huntersville, NC 28078 O: 980.875.4805 f: 980.875.4809 Steven.Capps@duke-energy.com 10 CFR 50.90 One-Time Extension of Appendix J Type A Integrated Leakage Rate Test Interval Response to Request For Additional Information By letter dated February 18, 2016, Duke Energy submitted the subject license amendment request to the U. S. Nuclear Regulatory Commission (NRC) for approval. By electronic mail dated' June 1, 2016, the NRC requested additional information. The enclosed document provides the requested information.

This submittal contains one regulatory commitment as listed in Attachment 2.

If you have any questions or require additional information, please contact P.T. Vu of Regulatory Affairs at (980) 875-4302.

I declare under penalty of perjury that the foregoing is true and correct. Executed on June 30, 2016.

Sincerely, J{)

Enclosure www.duke-energy.com

U.S. Nuclear Regulatory Commission June 30, 2016 Page2 xc:

C. Haney, Region II Administrator U. S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, GA 30303-1257 G. E. Miller, Project Manager U. S. Nuclear Regulatory Commission 11555 Rockville Pike Mail Stop 0-8G9A Rockville, MD 20852-2738 V. Sreenivas, Project Manager U. S. Nuclear Regulatory Commission 11555 Rockville Pike Mail Stop 0-8G9A Rockville, MD 20852-2738 J. Zeiler NRC Senior Resident Inspector McGuire Nuclear Station W. L. Cox, Ill, Section Chief North Carolina Department of Health and Human Services Radiation Protection Section 1645 Mail Service Center Raleigh, NC 27699-1645

License Amendment Request Request for Additional Information ENCLOSURE

REQUEST FOR ADDITIONAL INFORMATION FOR PROPOSED LICENSE AMENDMENT REQUEST FOR ONE-TIME EXTENSION OF APPENDIX J TYPE A INTEGRATED LEAK RATE TEST INTERVAL FROM 10 YEARS TO 10.5 YEARS DUKE ENERGY CAROLINAS, LLC WILLIAM B. MCGUIRE NUCLEAR STATION. UNITS 1AND2 (TAC NOS. MF7407 & MF7408)

Mechanical and Civil Engineering Branch (EMCB):

Request for Additional Information (RAil EMCB-1 McGuire Nuclear Station (MNS), Unit 1 and 2, LAR Section 3.2.2, "lnservice Inspection Program for Containment-IWE," provides in Tables 3.2.2-1 through 3.2.2-4 MNS' Second and Third Containment lnservice Inspection (GISI) Interval inspections for both Units 1 and 2, but does not provide specific inspection results for the completed containment inspections associated with the following inspection intervals: For Unit 1, End of Cycle (EOC) EOCs 17-24 refueling outages (RFOs); and for Unit 2, EOCs 17-23 RFOs.

LAR Section 3.2.3, "License Renewal," states that the GISI Plan - IWE program is credited in the joint Catawba and MNS License Renewal Application (LRA) as an aging management program for Reactor Building containment steel components. The program manages loss of material due to corrosion of steel surfaces, and that objective evidence associated with the program's effectiveness was provided in LRA Appendix B.3. 7. Staff's review of the LRA, submitted to the U.S. Nuclear Regulatory Commission (NRC) in 2001, did not identify any specific GISI inspection results to support, other than programmatic, implementation of the program's effectiveness.

Therefore, please provide the results for the completed GISI inspections for each unit as discussed above.

Response to RAI EMCB-1 The tabulation of inspection findings and dispositions for Unit 1, End of Cycle (EOC) EOCs 17-24 refueling outages (RFOs); and for Unit 2, EOCs 17-23 RFOs has been assembled and is presented in Attachment 1 of this response.

RAI EMCB-2 Section 3.4.2 of the LAR discusses the inspection of containment leak-chase channel systems.

NRC Information Notice (IN) 2014-07, "Degradation of Leak-Chase Channel Systems for Floor Welds of Metal Containment Shell and Concrete Containment Metallic Liner," provides three options a licensee may follow to comply with the GISI requirements of Title 10 of the Code of Federal Regulations (10 CFR) Part 50.55a(g)(4).

MNS proposes to add these inspections to the GISI Plan as Elective Examinations to be performed 100% during each Inspection Interval (instead of each Inspection Period, as indicated in the IN). MNS also proposes to perform a VT-3 visual examinatior:i in accordance with procedure NDE-67, "Visual Examination (VT-1 and VT-

3) of Metal and Concrete Containment." These examinations may be scheduled and performed as follows:

100% of the containment interior concrete floors shall be examined during each Inspection Interval. Approximately 1/3 of the floor surface areas shall be examined during each Inspection Period to determine the condition of all leak-chase channel bronze caps installed in the floor within the examination area (emphasis added)

2 The examination and schedule proposed by the licensee follows the third option given in IN 2014-07, which states, "Perform insetvice inspection of leak-chase channel system using licensee-proposed alternatives to code requirements under 10CFR50.55a(a)(3)."

Please provide the basis to justify the acceptability of the proposed alternative to that recommended in the IN and the American Society of Mechanical Engineers (ASME) Code requirements (ASME Boiler & Pressure Vessel Code,Section XI, Subsection IWE, Table IWE-2500-1, Examination Category E-A, Item E1.30 "Moisture Barriers," and ASME Code Section XI, Subsection IWE, Subarticle IWE-1240 and Table IWE-2500-1, Examination Category E-C, Item E4.11 "Visible Surfaces").

Response to RAI EMCB-2 In light of the recent issuance of RIS 2016-07, "Containment Shell or Liner Moisture Barrier Inspection," on May 9, 2016, MNS intends to revise the GISI program to perform inspections of Leak-Chase Channel Systems in_ accordance with the periodicity and expectations stated in IN 2014-07, and as amplified in RIS 2016-07.

In response to RAI EMCB-2, the following sections of the LAR have been modified accordingly:

Change 1 Listing of Owner-Specified Examinations:

4.

NRC Information Notice 2014-07 addresses NRC expectations for examination of containment leak chase channel systems. These items shall be added to the Containment ISi Plan to be performed 100% during each Inspection Period. These examinations may be scheduled and performed as follows:

100% of the containment interior concrete floors shall be examined during each inspection period. The floor surface areas shall be examined during each inspection period to determine the condition of all leak chase channel bronze caps installed in the floor within the examination area.

The condition of the bronze caps shall be considered acceptable if there is no evidence of damage or degradation that could result in possible leakage of water into the leakage channel systems.

Evidence of boric acid in the vicinity of any bronze cap or evidence of moisture intrusion into the leak chase channel shall require evaluation by engineering to determine the acceptability of the item.

The specific location Test No. of each bronze cap shall be identified on the examination record.

Change 2 3.4.2 IN 2014-07. Degradation of Leak-Chase Channel Systems for Floor Welds of Metal Containment Shell and Concrete Containment Metallic Liner Extent of Condition Unit 1 One location, #86, was found without a bronze cover during 1 EOC23. Similar to the Unit 2 as found condition, the test port was sealed with a hard solid material obstructing the tube inner diameter. There was a limited extent of condition performed for other test channel enclosures in the area (approximately 10%) with no adverse findings. Unit 1 ILRT data was reviewed with large margin between the latest 2008 ILRT results at 0.1065% per day, and the limit of 0.225%

per day. There is reasonable assurance that all Unit 1 test channel enclosures are covered and/or are otherwise providing an adequate moisture barrier function. An investigation to

3 identify all Unit 1 test channel enclosures was planned for the 1 EOC24 (Spring 2016) refueling outage. This evaluation is applicable and bounding to Unit 1.

Results of 1 EOC24 inspection:

During 1 EOC24, a 100% QC inspection of test channel enclosures was performed. Two unacceptable locations were identified. No. 56 and 143 were both identified with missing caps.

The locations with missing caps were found filled with a concrete like material and were observed to be sealed from moisture intrusion. Filling with grout was performed to return each location to design configuration.

Balance-of-Plant Branch (SBPB):

RAI SBPB-1 The LAR describes and evaluates the ILRT interval extension as being from the 10-year interval to 10.5-years or elsewhere as being approximately 6 months. However, the proposed change to the TS shows a "perform by" being the end of specified refueling outages for each unit (Unit 1

• End of Cycle 26 RFO in spring 2019, Unit 2 end of cycle 25 RFO in fall 2018) rather than calendar dates reflecting the 10 year intervals plus 6 month extensions. While the current schedule/projection of those refueling outages would appear consistent with a six month extension, it is entirely possible that one or both of the identified refueling outages could be delayed in time by a month or more, there being 2-3 or more years between now and the refueling outages when performance is proposed. The App J Option B guidance including model TS wording specifically used a calendar interval of 10 years rather than some number of refueling cycles, since refueling cycle lengths can vary. Extension of the 10-year interval _

described in the guidance was intended primarily to accommodate transitions to longer fuel.

cycle lengths, which were common at the time the guidance was drafted but expected to rarely recur at any particular reactor. Justify how the evaluation bounds or accommodates reasonable delay in the scheduled start dates of the specific refuel outages identified in the proposed TS text.

Response to RAI SBPB-1 Discussion NEI 94-01 Revision 0 (the currently applicable revision of NEI 94-01 to MNS), Section 9.1 states the following regarding the extension of the ILRT interval beyond the current 10 Year interval:

"Consistent with standard scheduling practices for Technical Specifications Required Surveillances, intervals for recommended Type A testing given in this section may be extended by up to 15 months. This option should be used only in cases where refueling schedules have been changed to accommodate other factors."

This amendment request is bounded by the 15-month extension presented in NEI 94-01 Revision 0. The provided analysis as detailed in this LAR adequately covers any slight delays in outage scheduling.

License Amendment Request Request for Additional Information ATTACHMENT 1 RESPONSE TO RAI EMCB-1

- Response to RAI EMCB-1 Mechanical and Civil Engineering Branch CEMCB):

Request for Additional Information (RAil EMCB-1 Response to RAI EMCB-1 Discussion The following is a tabulation of inspection findings and dispositions for Unit 1, End of Cycle (EOC) EOCs 17-24 refueling outages (RFOs); and for Unit 2, EOCs 17-23 RFOs as requested.

1EOC17 Removal of the temporary test bellows, and resulting inadvertent damage to containment vessel sleeve and piping guard pipe, at penetration #M-393.

1) That particular portion of the sleeve that was damaged by the saw cuts is not part of containment pressure boundary.

2) The containment sleeve does provide reinforcement of the hole in containment where M393 penetrates containment. This hole is still adequately reinforced because the missing material is a small fraction of 1 % of the total sleeve mass. This missing mass is negligible with respect to providing reinforcement of this hole.

3) The location and magnitude of these defects where-discussed with a Senior Engineer in the general office and he concurred with this assessment. His only concerns were that these defects have the sharp edges blended off while. minimizing further loss of material. This blending will minimize stress intensification at this location. Additionally, he requested that applicable coating be applied to these areas. A corrective action will be added to complete blending and required coating prior to Mode 4.

These areas will be blended to remove sharp edges and coated as appropriate.

Damage to guard pipe:

The guard pipe is not part the steel containment vessel nor part of a process pipe. The superficial damage to guard pipe is also acceptable without further repair. The minor loss of metal does not interfere with the function of this guard pipe. Per the information in this PIP, the guard pipe damaged areas have already been blended to avoid sharp edges. This blending will minimize stress intensification at this location. All that is required to complete work on the guard pipe is to appropriately coat it. This damage to the guard pipe is not an operability issue. A corrective action will be added to complete required coating prior to Mode 4.

A review*of calculation #MCC-1131.00-00-0003, Volume 2b, page 22 was conducted to determine the impact of the saw cuts on the containment penetration sleeve on the qualification of the containment vessel. If we make the following very conservative assumptions, we can conclude that the sleeve is acceptable and satisfies the original design:

Assumptions:

1. The (4) saw cuts are oriented axially on the penetration sleeve

2. All (4) saw cuts have a maximum length of 8" and a depth of 5/32"

3. All saw cuts lie within an area that is credited for reinforcement of the containment penetration 1

- Response to RAI EMCB-1 opening By review of the calculations, the reinforcement area for the opening is reduced from 46.3 in2 to 45.1 in2 as a result of an area reduction= 5/32" x 8". Because the required reinforcement area is 39.8 in2, adequate reinforcement remains and the penetration sleeve still conforms to the design requirements. Please note that the actual reduction in reinforcement area may be zero because the saw cuts may actually have occurred at a location on the sleeve that is beyond the arec;i replacement limits and therefore would not be credited for reinforcement. However, since the exact location of these saw cuts with respect to the containment shell plate was not recorded, we cannot preclude that some reinforcement may have been removed. In either case, the containment vessel is acceptable. For reasons documented in the detailed problem description, there is no further concern over material removed from the guard piping. No further evaluation is warranted and no additional documentation is necessary.

1EOC18 Indication Number: 1-SCVl-0002.2007.1 Area/Component l.D.: 1-SCVl-0002 (Ref. Drawings MC-ISIC2-1042-003 and -004)

Description Of Abnormality/Degradation: Pen. #M465 Approx. 356 degrees /delaminated coatings. Topcoat has delaminated. Loose coatings were removed during 1EOC18. WO 589422-04 written for Lower Cont. coatings repair. The condition of the containment vessel is acceptable.

Action Required: WO# 589422-04 has corrected the noted indication.

Indication Number: 1-SCVl-0003.2007.1 Area/Component l.D.: 1-SCVl-0003 (Ref. Drawing MC-ISIC2-1042-003)

Description Of Abnormality/Degradation: A Accu_mulator Room @ 37 deg. elev. 7 49'/light rust spot 5"x 5"on liner plate. Condition is acceptable, with coatings maintenance needed. WO# 589422-04 written for repair of Lower Containment coatings.

Action Required: WO# 589422-04 has corrected the noted indication.

Indication Number: 1-SCVl-0004.2007.1 Area/Component l.D.: 1-SCVl-0004 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Lower Airlock Area/54° through 126°.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: Lower Airlock/ Minor scrapes & dings. Condition is acceptable, with coatings maintenance needed. WO# 589422-04 written for repc;iir of Lower Containment coatings.

Action Required: WO# 589422-04 has corrected the noted indication.

Indication Number: 1-SCVl-0007.2007.1 Area/Component l.D.: 1-SCVl-0007 (Ref. Drawings MC-ISIC2-1042-003 and -004)

Description Of Abnormality/Degradation: B/C Fan Unit liner plate 2"x4" coatings delamination (Approx. location I 65degees /elev. 760).

Loose coatings were removed during 1EOC18. WO# 589422-04 written to repair Lower Containment coatings. The condition of the containment vessel is acceptable.

Action Required: WO# 589422-04 has corrected the noted indication.

Indication Number: 1-SCVl-0007.2007.2 Area/Component l.D.: 1-SCVl-0007 (Ref. Drawings MC-ISIC2-1042-003 and -004)

Description Of Abnormality/Degradation: B/C Fan Unit liner plate 6"x 15" coatings delamination (Approx. location 185 degrees /elev. 760) /elev. 760) Loose coatings were removed during 2

- Response to RAI EMCB-1 1EOC18. WO# 589422-04 written to repair Lower Containment coatings. The condition of the containment vessel is acceptable.

Action Required: WO# 589422-04 has corrected the noted indication.

Indication Number: 1-SCVl-0011.2007.1 Area/Component l.D.: 1-SCVl-0011 (Ref. Drawing MC-ISIC2-1042-003)

Description Of Abnormality/Degradation: Pipe Chase I top weld on angle of insulation panel and liner plate I approximately 30 degrees /flaking paint and small amount of rust at intermittent welds. Approx. 12" in length. The condition of the containment vessel is acceptable, with coatings maintenance warranted. WO# 589422-04 was written to clean and repair coatings in this area. Reinspect during future examinations.

Action Required: WO# 589422-04 has corrected the noted indication.

Indication Number: 1-SCVl-0012.2007.1 Area/Component l.D.: 1-SCVl-0012 (Ref. Drawing MC-ISIC2-1042-003)

Description Of Abnormality/Degradation: Pipe chase liner plate elev. 729 /121 degrees /staining on liner /coatings. No rust observed. The condition of the containment vessel is acceptable, with coatings maintenance warranted. WO# 589422-04 written for repair of Lower Containment coatings.

Action Required: WO# 589422-04 has corrected the noted indication.

Indication Number: 1-SCVl-0012.2007.2 Area/Component l.D.: 1-SCVl-0012 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 2/ 90° through 180°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Pipe chase liner plate elev. 729 / 152 degrees I damaged and chipped coatings. No corrosion. The condition of the containment vessel is acceptable, with coatings maintenance warranted. WO# 589422-04 written for repair of Lower Containment coatings.

Action Required: WO# 589422-04 has corrected the noted indication.

Indication Number: 1-SCVl-0017.2007.1 Area/Component l.D.: 1-SCVl-0017 (Ref. Drawing MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Pen. M302 Sump Area/ 184° (approx.).

Elevation: 725'+0" Description Of Abnormality/Degradation: Pen. M302 Approx. 184 deg. I Sump Area I Boron I debris I rust I staining. Boron initially identified in PIP M-07-00446. This area had been considered inaccessible during previous inspections due to sump screening. However, due to the Sump modification this location should now be considered accessible for inspection.

Corrosion, boron, debris, and rust were removed. A VT-1 exam and UT was performed on containment vessel surfaces above and just below the concrete floor level (some concrete was removed to permit this examination). Conditions were found to be acceptable, coatings repairs were completed, and moisture barrier was installed to seal this area from any future moisture.

Action Required: The Containment ISi Plan should be revised to show this area as accessible for visual examination, and the area should be added into Category E-C, Item E4.11 for examination during the next inspection period.

Indication Number: 1-SCVl-0018.2007.1 Area/Component l.D.: 1-SCVl-0018 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pen. M278 Sump Area / 176° (approx.).

3

- Response to RAI EMCB-1 Elevation: 725'+0" Description Of Abnormality/Degradation: Pen. M278 Approx. 176 deg. Sump Area I Boron, rust, debris, and staining. Boron initially identified in PIP M-07-00446. This area had been considered inaccessible during previous inspections due to sump screening. However, due to the Sump modification this location should now be considered accessible for inspection. Corrosion, boron, debris, and rust were removed. A VT-I exam and UT was performed on containment vessel surfaces above and just below the concrete floor level (some concrete was removed to permit this examination). Conditions were found to be acceptable, coatings repairs were completed, and moisture barrier was installed to seal this area from any future moisture.

Action Required: The Containment ISi Plan should be revised to show this area as accessible for visual examination, and the area should be added into Category E-C, Item E4.11 for examination during the next inspection period.

Indication Number: 1-SCV0-0001.2007.6 Area/Component l.D.: 1-SCV0-0001 (Ref. Drawings MC-ISIC2-1042-005, -006)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Floor and Ring II 0° through 360°.

Elevation: 725'+0" through 736'+5" Description Of Abnormality/Degradation: Pen. M-307 @ azimuth 192, El. 729' has flaking paint and pitting on piping at penetration (topcoating is delaminating). WO# 589092 was written to correct these conditions.

Action Required: W0#.589092 has corrected the noted indication.

Indication Number: 1-SCV0-0001.2007.8 Area/Component l.D.: 1-SCV0-0001 (Ref. Drawings MC-ISIC2-1042-005, -006)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Floor and Ring I/ 0° through 360°.

El.evation: 725'+0" through 736'+5" Description Of Abnormality/Degradation: 206 degrees @ El. 730'. Valve below 1KCFT6010-1 C NC Pump Motor Lower BRG Cooler Outlet Flow. This valve leaked brown boron onto ring stiffener on area approx. 2 ft. x 5 ft. Coatings on ring web are intact and undamaged. 581522 was written by Fluid Leak Management to address.

Action Required: WO# 581522 has corrected the noted indication.

Indication Number: 1-SCV0-0001.2007.9 Area/Component l.D.: 1-SCV0-0001 (Ref. Drawings MC-ISIC2-1042-005, -006)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Floor and Ring 1/ 0° through 360°.

Elevation: 725'+0" through 736'+5" Description Of Abnormality/Degradation: Azimuth 252 degrees (Pen. M-375) piping has paint chipping and rust underneath. Area should be cleaned and recoated. WO# 589092 was written to address.

Action Required: WO# 589092 has corrected the noted indication.

Indication Number: 1-SCV0-0003.2007.1 Area/Component l.D.: 1-SCV0-0003 (Ref. Drawings MC-ISIC2-1042-005, -006)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 3/ 0° through 360°.

Elevation: 7 46'+5" through 756'+ 11" Description Of Abnormality/Degradation: Annulus ring 3 (38 deg. 755 el.) - Mounting plate for electrical cable/ light brown stain. Approx. 10" x 8". Acceptable, with cleaning/coating warrcmted.

WO# 589092 written for cleaning and coating during 1EOC18.

Action Required: W.O. #589092 has corrected the noted indication.

4

- Response to RAI EMCB-1 Indication Number: 1-SCV0-0004.2007.2 Area/Component l.D.: 1-SCV0-0004 (Ref. Drawings MC-ISIC2-1042-005, -006)

Description Of Abnormality/Degradation: Cleaning and/or coatings maintenance is needed for the following items:

- 116 degrees/EL. 757' - corrosion on welds under vertical stiffener on top of ring web

- 135 and 166 degrees/ EL. 757' - corrosion on welds under vertical stiffener on top of ring web

- 203 to 220 degreesiEL. 757' - area has been exposed to previous standing water and persistent leakage. Staining observed.

- 203 to 21 O degrees/EL. 761' - penetrations M-320 and M-327 have minor pitting and rust. I

- 234 degrees/ EL. 758' - NS piping penetrations at Shield Bldg. wall have staining from leakage above this area. This appears to be a longstanding issue.

- 13 and 23 degrees/EL. 757' - weld under vertical stiffeners has dirt and paint missing.

These are minor conditions that warrant cleaning and coatings maintenance. Acceptable at this.

time. WO# 589092 has been generated to correct these conditions.

Action Required: WO# 589092 has corrected the noted indications.

Indication Number: 1-SCV0-0005.2007.1 Area/Component l.D.: 1-SCV0-0005 (Ref. Drawings MC-ISIC2-1042-005. -006)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 5/ 0° through 360°.

Elevation: 766'+5" through 776'+5" Description Of Abnormality/Degradation: The following conditions were observed in 2004 and still exist in 2007: Brown stains cover various surfaces of the stiffener ring web at elevation 767' around the periphery of the containment. These stains are apparently where moisture has dried.

Although it is apparent that moisture had previously covered significant portions of the stiffener ring web, no coatings damage or base metal degradation was observed. O.K. WO# 589092 was written to clean and recoat affected areas. Continue to monitor during future inspections.

Action Required: WO# 589092 has corrected the noted indications.

Indication Number: 1-SCV0-0005.2007.2 Area/Component l.D.: 1-SCV0-0005 (Ref. Drawings MC-ISIC2-1042-005. -006)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 5/ 0° through 360°.

• Elevation: 766'+5" through 776'+5"

• Description Of Abnormality/Degradation: Azimuth 307-309/EL. 766' to 776' - Black spots, staining, and some coatings missing on surfaces of the containment vessel shell. Some areas have had coatings maintenance performed previously. Base metal is acceptable. O.K. WO# 589092 was written to clean and recoat affected areas. Continue to monitor during future inspections.

Action Required: WO# 589092 has corrected the noted indications.

Indication Number: 1-SCV0-0005.2007.3 Area/Component l.D.: 1-SCV0-0005 (Ref. Drawings MC-ISIC2-1042.:.005, -006)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 5/ 0° through 360°.

Elevation: 766'+5" through 776'+5" Description Of Abnormality/Degradation: Azimuth 272 -280/EI. varies - Brown staining and damaged paint on containment vessel ring stiffener web and under vertical stiffeners and under electrical penetrations E-542, E-453, and E-461. Missing paint varies from 2" x 6" long to 2" square.

Base metal is acceptable, but coatings maintenance is needed. O.K. WO# 589092 was written to clean and recoat affected areas. Continue to monitor during future inspections.

Action Required: WO# 589092 has corrected the noted indications.

5

- Response to RAI EMCB-1 Indication Number: 1-SCV0-0005.2007.3 (Should have been identified as #1-SCV0-0005.2007.4)

Area/Component l.D.: 1-SCV0-0005 (Ref. Drawings MC-ISIC2-1042-005, -006)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 5/ 0° through 360°.

Elevation: 766'+5" through 776'+5" Description Of Abnormality/Degradation: Azimuth 269 degrees/El. 766' to 776' Light brown stain on containment vessel wall coming from stiffening ring above this area. Coatings are intact and are acceptable. Acceptable. WO# 589092 was written to clean and recoat affected areas.

Continue to monitor durihg future inspections.

Action Required: WO# 589092 has corrected the noted indications.

Indication Number: l-SCV0-0006. 2007.2 Area/Component l.D.: l-SCV0-0006 (Ref. Drawings MC-ISIC2-1042-005, -006)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 6/ 0° through 360°.

Elevation: 776'+5" through 786'+5" Description Of Abnormality/Degradation: Azimuth 261 degrees/El. 776' Dark brown liquid and staining observed on ring web beneath airlock barrel. Area has been exposed to wetting and drying, but is dry at time of inspection. Coatings are intact. W0#589092 was written for cleaning and coating annulus areas during 1EOC18. Corrective actions for this indication were not confirmed to have been completed during 1EOC18.

Action Required: WO# 589092 has corrected the noted indications.

Indication Number: 1-SCV0-0008.2007.3 Area/Component l.D.: 1-SCV0-0008 (Ref. Drawings MC-ISIC2-1042-005, -006)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 8/ 0° through 360°.

Elevation: 796'+5" through 806'+5" Description Of Abnormality/Degradation: Approx. 308-315 degrees/El. 796' - Light brown staining on ring web at this location. Coatings and base metal is acceptable at this location.

Acceptable. However, area should be cleaned. Area may be addressed by WO# 589092.

Action Required: WO# 589092 has corrected the noted indications.

Indication Number: 1-SCV0-0008.2007.4 Area/Component l.D.: 1-SCV0-0008 (Ref. Drawings MC-ISIC2-1042-005, -006)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 8/ 0° through 360°.

Elevation: 796'+5" through 806'+5" Description Of Abnormality/Degradation: Azimuth 160 degrees/El. 796' - Rusty colored standing water on ring web at this lo~ation. Base metal is acceptable at this location. Acceptable.

However, area should be cleaned and coated as needed. Area may be addressed by WO# 589092.

Action Required: WO# 589092 has corrected the noted indications.

Indication Number: 1-SCV0-0009.2007.1 Area/Component l.D.: 1-SCV0-0009 (Ref. Drawings MC-ISIC2-1042-005, -006)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 9/ 0° through 360°.

Elevation: 806'+5" through 816'+5" Description Of Abnormality/Degradation: El. 807' - 236° - Ring web has chipped paint on area 2 ft x I ft. Containment coatings are acceptable in these areas. Acceptable. However, these areas could be cleaned to eliminate staining. Coatings repair may be warranted for area at Azimuth 236.

Action Required: Corrective coatings maintenance has been completed.

6

- Response to RAI EMCB-1 Indication Number: 1-SCV0-0010.2007.2 Area/Component l.D.: 1-SCV0-0010 (Ref. Drawings MC-ISIC2-1042-005, -006)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 10/ 0° through 360°.

Elevation: 816'+5" through 826'+5"

• Description Of Abnormality/Degradation: Azimuth 230°, El. 816' - E:dge of ring stiffener and base of pipe support are wet with some rusty substance. Base metal is acceptable, but area needs to be cleaned. Acceptable, with maintenance required. Areas should be cleaned, and recoated if necessary. This area may have been identified for maintenance work under W.O. #589092.

Action Required: WO# 589092 has corrected the noted indications.

Indication Number: 1-SCV0-0012.2004.3 Area/Component l.D.: 1-SCV0-0012 (Ref. Drawings MC-ISIC2-1042-005,..;006, and -007)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 12 and Dome Exterior/

0° through 360°.

Elevation: 835 '+9" through 894 '+3-11132" Description Of Abnormality/Degradation: Minor rust observed @ the following locations.

Conditions are not severe, but coatings maintenance is needed. Acceptable, with coatings maintenance necessary to prevent continued degradation. PIP #M-04-01272 was generated during the previous inspection in 2004 to address coatings maintenance needed at the areas identified. Corrosion is not considered significant at this time during 2007 inspection.

- 248° -250°/835' On weld at ring/shell interface (fillet weld).

- 340°/837' On circumferential shell weld & ring stiffener web.

- 7°/837' On circumferential shell weld.

Action Required: Perform corrective coatings maintenance.

Indication Number: 1-PENE-C412.2004.1 Area/Component 1.D.: 1-PENE-C412 (Ref. Drawings MC-ISIC2-1042-004, -006, -014, -015).

Location/Azimuth: Containment Vessel - Equipment Hatch/ 287°(approx.).

Elevation: 787'+5" (approx.)

Description Of Abnormality/Degradation: Azimuth 287°/EI. varies. The following conditions were observed on the Equipment Hatch Cover exterior surfaces and interior surfaces of the Equipment Hatch Barrel. These conditions were originally identified in PIP #M-04-01272.

1. Bottom of barrel at base of cover has areas of flaking paint and minor corrosion. Conditions are not significant at this time. Conditions are unchanged from previous inspection. Acceptable.

Corrosion is not considered significant at this time. Coatings maintenance is necessary to prevent continued degradation.

2. Bottom of barrel (portion that extends through Reactor Shield Building) has areas of corrosion. Although these conditions do not adversely affect the containment integrity, corrective coatings maintenance is recommended to prevent continued corrosion. Conditions are unchanged from previous inspection. Acceptable. Corrosion is not considered significant at this time. Coatings maintenance is necessary to prevent continued degradation.

3. Minor dings in coating were noted at various locations around the interior of the barrel and on exterior surfaces of the Hatch Cover. Not significant. O.K. If corrective coatings maintenance is performed on Hatch Barrel surfaces, then these areas should also have corrective coatings maintenance performed.

Action Required: Perform corrective coatings maintenance.

7

- Response to RAI EMCB-1 1EOC19 Indication Number: 1-SCVl-0003.2007.1 Area/Component l.D.: 1-SCVl-0003 (Ref. Drawing MC-ISIC2-1042- 003)

Location/Azimuth: Containment Vessel Interior Surface - Accumulator A Room/34 ° through 54 °.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: A Accumulator Room@ 37 deg. elev. 749'/light rust spot 5"x5"on liner plate.

Resolution: Condition is acceptable, with coatings maintenance needed. W0#589422-04 written for repair of Lower Containment coatings. Corrective coatings maintenance has been completed.

Indication Number: 1-SCVl-0003.2008.1 Area/Component l.D.: 1-SCVl-0003 (Ref. Drawing MC-ISIC2-1042- 003)

Location/Azimuth: 738'+3" through 764'+2-l/2" Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: A Accumulator Room@ 37 deg. elev.749 I light rust spot 5"x5" on liner plate. Found in same condition as last inspection.

Resolution: Repair was not completed last outage, however WO# 1784351-04 was written for IEOC19 to correct coatings issues. This area is behind A Accumulator tank at the concrete floor and liner plate. Corrective coatings maintenance has been completed.

Indication Number: 1-SCVl-0004.2007.1 Area/Component l.D.: 1-SCVl-0004 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Lower Airlock Area/54° through 126°.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: Lower Airlock/ Minor scrapes & dings.

Resolution: Condition is acceptable, with coatings maintenance needed. WO# 589422-04 written for repair of Lower Containment coatings. Corrective coatings maintenance has been completed.

Indication Number: 1-SCVl-0004.2008.1 Area/Component l.D.: 1-SCVl-0004 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Lower Airlock Area/54° through 126°.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: Lower Airlock/ Minor scrapes & dings (same as last inspection)

Resolution: Condition is acceptable, with coatings maintenance needed. W0#-1784351-04 was written for 1EOC19 for coatings. Corrective coatings maintenance has been completed.

Indication Number: 1-MBRl-017.2008.1 Area/Component l.D.: 1-MBRl-017 (Ref. Drawings MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Moisture Barrier/ 105° to 122°.

Elevation: 752'+0" Description Of Abnormality/Degradation: Moisture Barrier was found separated in several locations.

Resolution: Condition has been corrected under WO# 1784351-04 during 1EOC19 8

- Response to RAI EMCB-1 Indication Number: 1-SCVl-0005.2008.1 Area/Component 1.D.: 1-SCVl-0005 (Ref. Drawing MC-ISIC2-I 042-003)

Location/Azimuth: Containment Vessel Interior Surface - Excess Letdown HX Room/106° through 126°.

Elevation: 738'+3" through 752'+0" Description Of Abnormality/Degradation: Staining on liner plate in Excess Letdown HX Room Resolution: The staining has been identified in previous inspections. WO 1784351 has been written to coat; however, this condition is Acceptable. Corrective coatings maintenance has been completed.

Indication Number: 1-SCVl-Ooog. 2008.1 Area/Component l.D.: 1-SCVl-Ooog (Ref. Drawing MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Fuel Transfer Tube Area/234° through 303°.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: Boron residue and cork staining observed on insulation panels, floor, and overhead ceiling. At time of inspection, this area was dry: PIP M-08-5657 originated to resolve.

Resolution: WO 1833375 written to clean. Maintenance has been completed. Acceptable.

Indication Number: 1-SCVl-0011.2007.1 Area/Component l.D.: 1-SCVl-0011 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 1/0° through go 0

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Pipe Chase I top weld on angle of insulation panel and liner plate I approximately 30 degrees /flaking paint and small amount of rust at intermittent welds. Approx. 12" in length.

Resolution: The condition of the containment vessel is acceptable, with coatings maintenance warranted. WO# 53g422-04 was written to clean and repair coatings in this area. Corrective coatings maintenance has been completed. Reinspect during future examinations.

Indication Number: 1-SCVl-0011.2008.1 Area/Component l.D.: 1-SCVl-0011 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 1/0° through go 0

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Same as last inspection.

Resolution: All coatings issues were not corrected last outage and WO#l784351-04 was written for coatings for 1 EOC1 g, This area has been cleaned, prepped, coated, and accepted.

Indication Number: 1-SCVl-0011.2008.2 Area/Component l.D.: 1-SCVl-0011 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 1/0° through go 0

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Pipe chase I 31degrees, EL.72g, 12 ft. section on liner plate I flaking paint and rust.

Resolution: WO# 1784351-04 was written for 1 EOC1 g, This area has been cleaned, prepped, coated, and accepted.

Indication Number: 1-SCVl-0012.2007.1 Area/Component l.D.: 1-SCVl-0012 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 2/ go 0 through 180°.

9

- Response to RAI EMCB-1 Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Pipe chase liner plate elev. 72g /121 degrees /staining on liner /coatings. No rust observed.

Resolution: The condition of the containment vessel is acceptable, with coatings maintenance warranted. WO# 58g422-04 written for repair of Lower Containment coatings.

Indication Number: 1-SCVl-0012.2008.1 Area/Component l.D.: 1-SCVl-0012 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 2/ go 0 through 180°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Same as last inspection.

Resolution: The condition of the containment vessel is acceptable. WO# 1784351-04 was written for coatings issues for 1 EOC1 g_

Indication Number: 1-MBRl-002.2008.1 Area/Component l.D.: 1-SCVl-0012 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Moisture Barrier/ go 0 through 180°.

Elevation: 725'+0" Description Of Abnormality/Degradation: Moisture barrier missing at 131 degrees at intersection of SS insulation panel and concrete floor at elevation 725 behind column.

Resolution: WO 1784351-04 was written to correct coatings issues during 1 EOC1 g_ This item has been repaired and accepted.

Indication Number: 1-SCVl-0014.2004.1 Area/Component l.D.: 1-SCVl-0014 (Ref. Drawing MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 4/ 270° - 360°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Rust and boron stains observed on containment shell

@ 270deg. I el. 728 - 735. This area was reinspected on 03-14-07 and 04 07. Surfaces of the containment vessel have now been cleaned and recoated, with no degradation observed.

Some rust and boron stains remain on surfaces of the insulation panel at the base of the containment vessel. Sealant along joints in the panel were inspected and found to be in good condition, preventing moisture intrusion behind panel. Work was performed per W0#58g422-04.

This condition had been identified during 2004.

Resolution: Conditions are considered acceptable. This area should continue to be monitored during future inspections.

Indication Number: 1-SCVl-0014.2008.1 Area/Component l.D.: 1-SCVl-0014 (Ref. Drawing MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 4/ 270° - 360°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: The conditions found in item 1-SCVl-0014.2004.1 @

approx.270-275 deg. were observed this outage I 1 EOC1 g_ The area was found to be dry at the time of inspection; however the moisture barrier appeared to be deteriorating at the area of the intermittent welds at the top of the insulation panel. Some boron and rust stains are still in existence.

Resolution: WO# 1784351-04 was written. Conditions have been corrected and accepted. This area should continue to be monitored during future inspections.

10

- Response to RAI EMCB-1 Indication Number: 1-MBRl-0011.2008.1 Area/Component l.D.: l-MBRl-011 (Ref. Drawings MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Moisture Barrier/ 270° through 0°.

Elevation: 728'+4" Description Of Abnormality/Degradation: Approx. 275 deg. Moisture barrier was degraded Resolution: WO# 1784351-04 was written. Area was cleaned, prepped, and repaired.

Indication Number: 1-SCVl-0017.2007.1 Area/Component l.D.: 1-SCVl-0017 (Ref. Drawing MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Pen. M302 Sump Area/ 184° (approx.).

Elevation: 725'+0" Description Of Abnormality/Degradation: Pen. M302 Approx. 184 deg. I Sump Area I Boron/

Debris I rust/ staining. Boron initially identified in PIP M-07-00446.

No problems noted 2008/ 1EOC19.

Resolution: This area had been considered inaccessible during previous inspections due to sump screening. However, due to the Sump modification this location should now be considered accessible for inspection. Corrosion, boron, debris, and rust were removed. A VT-1 exam and UT was performed on containment vessel surfaces above and just below the concrete floor level (some concrete was removed to permit this examination). Conditions were found to be acceptable, coatings repairs were completed, and moisture barrier was installed to seal this area from any future moisture. The Containment ISi Plan should be revised to show this area as accessible for visual examination, and the area should be added into Category E-C, Item E4.11 for examination during the next inspection period.

Indication Number: 1-SCVl-0018.2007.1 Area/Component l.D.: 1-SCVl-0018 (Ref. Drawing MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pen. M278 Sump Area/ 176° (approx.).

Elevation: 725'+0" Description Of Abnormality/Degradation: Pen. M278 Approx. 176 deg. Sump Area I Boron, rust, debris, and staining. Boron initially identified in PIP M-07-00446.

No problems noted 2008/ 1EOC19.

Resolution: This area had been considered inaccessible during previous inspections due to sump screening. However, due to the Sump modification this location should now be considered accessible for inspection. Corrosion, boron, debris, and rust were removed. A VT-1 exam and UT was performed on containment vessel surfaces above and just below the concrete floor level (some concrete was removed to permit this examination). Conditions were found to be acceptable, coatings repairs were completed, and moisture barrier was installed to seal this area from any future moisture. The Containment ISi Plan should be revised to show this area as accessible for visual examination, and the area should be added into Category E-C, Item E4.11 for examination during the next inspection period.

Indication Number: 1-MBR0-001.2008.1 Area/Component l.D.: 1-MBR0-001 (Ref. Drawings MC-ISIC2-1042-005)

Location/Azimuth: Containment Vessel Exterior Surface - Moisture Barrier/ 270° through 180°.

Elevation: 725'+0" Description Of Abnormality/Degradation: Moisture barrier missing for a length of approximately 1 inch@ 93 degrees and elev. 725'.

Resolution: W.O. 1784351-04 was written to restore moisture barrier. Acceptable.

11

- Response to RAI EMCB-1 Indication Number: 1-SCV0-0004.2008.1 Area/Component l.D.: 1-SCV0-0004 (Ref. Drawings MC-ISIC2-1042-005, -006)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 4/ 0° through 360°.

Elevation: 756'+11" through 766'+5" Description Of Abnormality/Degradation: Electrical Penetrations E103-EI05-EI08-El11-El14 &

El16 located 20 degrees to 39 degrees on ring 4 have 1 or 2 bolts missing and also E135 &

E136 approx. 75 degrees have a couple of bolts missing at time of inspection.

Resolution: Monitor during future inspections. Acceptable.

Indication Number: 1-MBR0-0001 Area/Component l.D.: MCISl2-1042-001 Location/Azimuth:

Elevation:

Description Of Abnormality/Degradation: Small area of moisture barrier missing Resolution: WO# 1784351 written to restore moisture barrier. Acceptable 1EOC19.

1EOC20 No scheduled inspection required.

1EOC21 Indication Number: 1-SCVl-0004.2008.1 Area/Component l.D.: 1-SCVl-0004 (Ref. MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Lower Airlock Area/54° through 126°.

Elevation: 738'+3" through 764'+2-1/2" Description Of Abnormality/Degradation: Lower Airlock/ Minor scrapes & dings (same as last inspection)

Resolution: Condition is acceptable, with coatings maintenance needed. WO# 1784351-04 was written for 1EOC19 for coatings.

Indication Number: 1-SCVl-0004.2011.1 Area/Component 1.D.: 1-SCVl-0004 (Ref. MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Lower Airlock Area/54° through 126°.

Elevation: 738'+3" through 764'+2-1/2" Description Of Abnormality/Degradation: Lower Airlock/ Minor scrapes & dings (same as last inspection)

Resolution: Condition is acceptable. WO 1957059 for coating repair during 1 EOC21.

Acceptable 1 EOC21.

Indication Number:

Area/Component l.D.: 1-SCVl-0005 (Ref. MC-ISIC2-1042-003)

Location/Azimuth: Containment Vessel Interior Surface - Excess Letdown HX Room/I 06° through 126°.

Elevation: 738'+3" through 752'+0" Description Of Abnormality/Degradation: Staining on liner plate in Excess Letdown HX Room Resolution: The staining has been identified in previous inspections and the condition of the containment vessel is Acceptable. Acceptable 1 EOC21 12

- Response to RAI EMCB-1 Indication Number: 1-SCVl-0009.2008.1 Area/Component l.D.: 1-SCVl-0009 (Ref. MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Fuel Transfer Tube Area/234° through 303°.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: Boron residue and cork staining observed on insulation panels, floor, and overhead ceiling. At time of inspection, this area was dry. PIP M-08-5657 originated to resolve.

Resolution: WO 1833375 written to clean. Acceptable 1 EOC21.

Indication Number: 1-SCVl-0009.2011.1 Area/Component 1.D.: 1-SCVl-0009 (Ref. MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Fuel Transfer Tube Area/234° through 303°.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: Standing water found on floor. Boric acid deposits also on floor and on nearby stainless insulation panels.

Resolution: PIP M-11-6962 written to address. WO 2003815 to remove insulation panel and perform VT-I and UT on SCV. Results acceptable. Area was dry after core reload. Refueling canal. is not a likely source. Acceptable 1 EOC21.

Indication Number: 1-SCVl-0009.2011.2 Area/Component 1.D.: 1-SCVl-0009 (Ref. MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Fuel Transfer Tube Area/234° through 303°.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: Activity from divider barrier boot seal causing coatings to flake at approx. 280 deg. Elev. 747+4.

Resolution: WR 1043956 written for coatings repair. Acceptable 1 EOC21.

Indication Number: l-MBRl-007.2011.1 Area/Component 1.D.: 1-MBRl-007 (Ref. MC-ISIC2-1042-003)

Location/Azimuth: 728'+4" Elevation: Containment Vessel' Interior Surface - Moisture Barrier/ 90° through 180°.

Description Of Abnormality/Degradation: Approx. 3 feet missing at Az. 152 Resolution: WR 1043986 written for repairs. Acceptable 1 EOC21.

Indication Number: 1-MBRl-0003.2011.1 Area/Component l.D.: 1-MBRl-003 (Ref. MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface-Moisture Barrier/ 252° through 174°.

Elevation: 725'+0" Description Of Abnormality/Degradation: MB separated/missing below SS insulation panel @

211 degrees Resolution: WR 1043986 written for coating repairs. Acceptable 1 EOC21 Indication Number: 1-MBRl-008.2011.1 Area/Component l.D.: 1-MBRl-008 (Ref. MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Moisture Barrier/ 252° through 180°.

Elevation: 728'+4" Description Of Abnormality/Degradation: MB separated/missing above SS insulation panel @

211 degrees Resolution: WR 1043986 written for coating repairs. Acceptable 1 EOC21.

13

- Response to RAI EMCB-1 Indication Number: 1-MBRl-009.2011.1 Area/Component l.D.: 1-MBRl-009 (Ref. MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Moisture Barrier/ 252° Elevation: 728'+4" to 736'+3" Description Of Abnormality/Degradation: MB separated at edge of fuel transfer wall at 250 degrees Resolution: WR 1043986 written for coating repairs. Acceptable 1 EOC21 Indication Number: 1-SCVl-0014.2004.1 Area/Component 1.D.: 1-SCVl-0014 (Ref. MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 41270° - 360°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Rust and boron stains observed on containment shell

@ 270 deg./ el.728 - 735. This area was reinspected on 03-14-07 and 04-03-07. Surfaces of the containment vessel have now been cleaned and recoated, with no degradation observed. Some rust and boron stains remain on surfaces of the insulation panel at the base of the containment vessel. Sealant along joints in the panel were inspected and found to be in good condition, preventing moisture intrusion behind panel. Work was performed per W0#589422-04. This condition had been identified during 2004.

Resolution: Conditions are considered acceptable. This area should continue to be monitored during future inspections.

Indication Number: 1-SCVl-0014.2008.1 Area/Component 1.D.: 1-SCVl-0014 (Ref. MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 4/ 270° - 360°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: The conditions found in item 1-SCVl-0014.2004.1 @

approx.270-275 deg. were observed this outage/ IEOCl9. The area was found to be dry at the time of inspection, however the moisture barrier appeared to be deteriorating at the area of the intermittent welds at the top of the insulation panel. Some boron and rust stains are still in existence.

Resolution: Conditions have been corrected and accepted. This area should continue to be monitored during future inspections.

Indication Number: 1-SCVl-0014.2011.1 Area/Component 1.D.: 1-SCVl-0014 (Ref. MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 4/ 270° - 360°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Some staining at same area as above, no coatings deteriorated. 280 degrees, elev. 730. Acceptable Resolution: Acceptable 1 EOC21.

Indication Number: 1-MBRl-005.2011.1 Area/Component 1.D.: 1-MBRl-005 (Ref. MC-ISIC2-1042-004)

Location/Azimuth: Containment Vessel Interior Surface - Moisture Barrier/ 270° through 0°.

Elevation: 725'+0" Description Of Abnormality/Degradation: MB separated/missing at two locations: EL 725 at 340 degrees and EL 725 at 290 degrees.

Resolution: WR 1043986 written for coatings repair. Acceptable 1 EOC21.

14

- Response to RAI EMCB-1 1EOC22 No recordable indications were identified during 1 EOC22 1EOC23 Indication Number: BOP*VT-14-921 Area/Component l.D.: MC-ISIC2*1042-0016-Penetration E-225 Location/Azimuth:

Elevation:

Description Of Abnormality/Degradation: During Containment ISi inspection, VT-1 on pressure retaining bolting WO# 02131757, a dry, white powdery substance was found on pressure retaining bolting on electrical penetrations E-225, E-226 and E-227. These penetrations are located in Unit 1 Reactor Building above the pipe chase in B Accumulator Room. This substance should be sampled and evaluated to see if it is boron. If it is found to be boron a N-566-2 evaluation will need to be done by Engineering. The substance will need to be cleaned form the bolting so the ISi inspection can be completed during IEOC23.

Resolution: Bolted connection was re-Inspected after boron was cleaned and no Issues were found on 10-19*2014.

Indication Number: BOP* VT-14* 922 Area/Component l.D.: MC-ISIC2-1042-0016 - Penetration E-226 Location/Azimuth:

Elevation:

Description Of Abnormality/Degradation: During Containment ISi inspection, VT-1 on pressure retaining bolting WO# 02131757, a dry, white powdery substance was found on pressure retaining bolting on electrical penetratio.ns E-225, E-226 and E-227. These penetrations are located in Unit I Reactor Building above the pipe chase in B Accumulator Room. This substance should be sampled and evaluated to see if it is boron. If it is found to be boron a N-566-2 evaluation will need to be done by Engineering. The substance will need to be cleaned from the bolting so the ISi inspection can be completed during 1 EOC23.

Resolution: Bolted connection was re-Inspected after boron was cleaned and no Issues were found on 10-19-2014.

Indication Number: BOP* VT-14-923 Area/Component l.D.: MC* ISIC2-10420016 - Penetration E-227 Location/Azimuth:

Elevation:

Description Of Abnormality/Degradation: During Containment ISi inspection, VT-1 on pressure retaining bolting WO# 02131757, a dry, white powdery substance was found on pressure retaining bolting on electrical, E-226 and E-227. These penetrations are located in Unit I Reactor Building above the pipe chase in B Accumulator Room. This substance should be sampled and evaluated to see if it is boron. If it is found to be boron a N-566-2 evaluation will need to be done by Engineering. The substance will need to be cleaned form the bolting so the ISi inspection can be completed during 1 EOC23.

Resolution: Bolted connection was re-Inspected after boron was cleaned and no Issues were found on 10-19-2014.

Indication Number: BOP-VT-14-928 Area/Component l.D.: MC-ISIC2-1042-0016 - Penetration E-435 Location/Azimuth:

Elevation:

15

- Response to RAI EMCB-1 Description Of Abnormality/Degradation: During ISi VT-1 inspections of electrical penetrations in the RX bldg. under WO 02131757-01 the following discrepancies were noted: at electrical penetration E-435 there are two pressure retaining bolts that have broken lock washers with material loss. At the 9:00 position the lock washer is missing approx. 20% material. At the 7:00 position the lock washer is missing approx. 40% material. Photos are available of this condition.

Resolution: WO 2173920 replaced the degraded washers and any other fasteners and a penetration test was performed after repair-SAT. ACA 1 documents the WR that was rolled into WO 2173920.

1EOC24 Indication Number: 1-MRBl-017.2016.1 Area/Component l.D.: 1-MRRl-017 (Ref. MC-ISIC2-1042-0003)

Location/Azimuth: Containment Vessel Interior Surface Moisture Barrier 105°-122° Elevation: 752'+0" Description Of Abnormality/Degradation: Moisture barrier found split down the middle entire length. This was identified on Coatings Condition Walkdown and included on MP/O/A/7700/101 3.2 "QA Condition 1 Coating inspection Form".

Also noted for areas 1-SCVl-0005 & 1-SCVl-0009 Resolution: Moisture barrier 1-MBRl-01 7 was replaced under W/O 02206087-04 as item #32 on coatings walkdown List. Acceptable 1 EOC24 Indication Number: 1-MRB0-001.2016.1 Area/Component l.D.: 1-MBR0-001 (Ref. MC-ISIC2-1042-0005)

Location/Azimuth: Containment Vessel Exterior Surface Moisture Barrier 270 -180° Elevation: 725'+0" Description Of Abnormality/Degradation: Moisture barrier missing between Az. 310 & 318. Also missing @Az. 227.

Resolution: WO 20069623 was created to repair/replace missing moisture barrier@ 227 and between 310 and 318 deg. During this work, surface rust found on SCV (Ref AR 2017757). This WO to clean and coat SCV, and caulk missing moisture barrier prior to Mode 4. This was completed and area re-inspected 4/9/16. Acceptable 1 EOC24.

Indication Number: 1-MRB0-003.2016. I Area/Component l.D.: 1-MBR0-003 (Ref. MC-ISIC2-1042-0006)

Location/Azimuth: Containment Vessel Exterior Surface Moisture Barrier 180°-247° Elevation: 725'+0" Description Of Abnormality/Degradation: Missing Moisture barrier at Az. 227. Also see IMRB0-001.2016.1 Resolution: WO 20069623 was created to repair/replace missing moisture barrier@ 227 and between 310 and 318 deg. prior to Mode 4. This was completed and area re-inspected 4/9/16.

Acceptable 1 EOC24.

Indication Number: 1-SCV0-001.2016.1 Area/Component l.D.: 1-SCV0-001 (Ref. MC-ISIC2-1042-0005, 0006)

Location/Azimuth: Containment Vessel Exterior Surface-Annulus Ring #1 0°-360° Elevation: 725'-0" - 736'+5.

Description Of Abnormality/Degradation: Surface corrosion noted on exterior of SCV@ Elev. 725 Az. 227. Area is approx.. 3' long x 1.5" high. Also, smaller area of corrosion at Az. 315. No flaking of steel, just superficial surface corrosion that could be removed with a wire brush. Also, portion of 1-MRB0-001 missing here. AR 02017757 written to address.

Resolution: Surface corrosion is very minor. WO 20069623 to clean & coat SCV, and caulk 1-16

- Response to RAI EMCB-1 MRB0-001 prior to Mode 4. This was completed and area re-inspected 4/9/16. Acceptable 2EOC17 Indication Number: BOP-VT-06-111 Area/Component l.D.: MC-ISIC-2042-003 Rev.1 Location/Azimuth: Area around Penetration "B" Train (M-302) 2-SCVl-0178 area slightly below concrete Elevation: Elev. 724, AZ 184' in ECCS Sump Area Description Of Abnormality/Degradation: Minor rust, flaking, peeling, cracking 8 discoloration observed at time of inspection.

Resolution: This area was blasted to sound clean metal. Vis ok acceptable and recoated B also UT inspection - Linear > 1 inch.

Indication Number: BOP-VT-06-112 Area/Component l.D.: MC-ISIC-2042-0002 Rev. 2 Location/Azimuth: Area around Penetration M-278 "A" Train (2-SCVl-018) and area slightly below concrete Elevation: Elev. 724, AZ 175.5' in ECCS Sump Area Description Of Abnormality/Degradation: Minor rust, flaking, peeling, cracking and discoloration observed at time of inspection.

Resolution: This area was blasted to sound clean metal. Visual ok, acceptable and recoated and also UT inspection - Linear > 1 inch.

2EOC18 Indication Number: 2-SCVl-0002-2008.1 Area/Component l.D.: 2-SCVl-0002 (Ref. Drawings MC-ISIC-2042-002 and -003)

Location/Azimuth: Containment Vessel Interior Surface - Vent Unit AID Room/325° 738'+3" through 35°.

Elevation: 764'+2-l/2" Description Of Abnormality/Degradation: Electrical penetration E436 approximately elevation 754' Az 340 and electrical penetration E429 approx. elevation 759' Az. 341. Needs coatings maintenance. Surfaces show light rust. Electrical penetration E-115 at elevation 754' AZ 25 shows light rust and staining.

Resolution: Acceptable. 2EOC18. Maintenance performed work under WO 17 46671. Inspection complete and accepted 3/17 /08.

Indication Number: 2-SCVl-0004.2008.1 Area/Component l.D.: 2-SCVl-0004 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Lower Airlock Area/54° through 126°.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: Hinges on inside of door on lower personnel airlock need coatings maintenance due to coatings flaking.

Resolution: Acceptable. WO 1746671 written during 2EOC18.

Indication Number: 2-SCVl-005-2005.1 Area/Component l.D.: 2-SCVl-0005 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface -Excess Letdown HX Room/106° through 126°.

Elevation: 738'+3" through 752'+0" Description Of Abnormality/Degradation: Dried staining observed on containment shell plate. No 17

- Response to RAI EMCB-1 active moisture was seen, and these conditions have been noted during previous inspections.

No degradation of containment metallic surfaces was observed.

Resolution: Acceptable during 2EOC16. *Same condition found during 2EOC18.

Indication Number: 2-MBRl-020-2008.1 Area/Component l.D.: 2-SCVl-0005 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface -Excess Letdown HX Room/106° through 126°.

Elevation: 738'+3" through 752'+0" Description Of Abnormality/Degradation: Moisture barrier 2-MBRl-020 has areas that are separating.

Resolution: Acceptable during 2EOC18; however, because this material is no longer functioning as an effective moisture barrier, the containment ISi plan (File #MC-1042-CISl-001) should be revised to remove this moisture barrier from the inspection plan. Examination category E-D examinations will no longer be performed on this material. Elimination of this inspection is considered acceptable because no moisture was observed in this area. There are no requirements to install or maintain these moisture barriers, except where specified by the Owner. Accepted 2EOC18.

Indication Number: 2-SCVl-0007-2008.1 Area/Component l.D.: 2-SCVl-0007 (Ref. Drawings MC-ISIC-2042- 002 and -003).

Location/Azimuth: Containment Vess~l Interior Surface - Vent Unit B/C Room/147° through 212°.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: Penetration M260 has minor rust and staining.

Resolution: Acceptable. WO 17 46671 written for coatings maintenance during 2EOC18.

Indication Number: 2-SCVl-0008.2000.1 Area/Component l.D.: 2-SCVl-0008 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface -Accumulator C Room/214° through 233°.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: Loose, flaking, and blistering topcoating was observed behind Accumulator C Tank near azimuth 220° fro.m the floor elevation and continuing up the.

Containment Vessel shell in this room. Approximately 3 square feet of coatings were removed.

Loose material was removed to assess the condition of the base metal. Base metal was exposed and underlying coatings were intact and acceptable. However, a burn mark was noted near azimuth 222° from welded attachment made on the exterior side of the vessel shell plate.

Base metal was not exposed. *Coatings maintenance in progress. 3-11-05 Resolution: Acceptable during 2EOC16.

Acceptable during 2EOC18.

Indication Number: 2-SCVl-0009.2000.1 Area/Component l.D.: 2-SCVl-0009 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Fuel Transfer Tube Area/234 ° through 303 °.

Elevation: 738'+3" through 764'+2-l/2" Description Of Abnormality/Degradation: Sealant applied along the horizontal joint between the Fuel Transfer Tube Shielding concrete and the Steel Containment Vessel at 750'+0" between azimuths 247° and 270° is performing well and is in very good condition. No evidence of current or past moisture intrusion or staining was observed along this joint. Also, the sealant installed along the vertical joints on either side of the Fuel Transfer Tube Shielding Concrete is 18

- Response to RAI EMCB-1 performing acceptably and is in good condition.

Resolution: Acceptable. 2EOC16 Acceptable. 2EOC18.

Indication Number: 2-SCVl-0011.2005.1 Area/Component l.D.: 2-SCVl-0011 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 1/ 0° through goo.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Boron leaking from fittings on instrument lines from 2NVIV5270 & 2NVIV5271. The boron has spayed onto the valves insulation panels that cover the containment liner plate and is also covering the Moisture Barrier at floor.EL.725-EL.728 /35-50 degrees 3-11-05 Resolution: Acceptable, WR#g8340213 and W0#98718521 were written. This area was cleaned and the moisture barrier was reinspected and found acceptable during 2EOC16.

Acceptable 2EOC18.

Indication Number: 2-SCVl-0012.2000.1 Area/Component l.D.: 2-SCVl-0012 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 21 go 0 through 180°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Blistering and flaking topcoating was noted at azimuth g1° near elevation 731 '+ O". Loose material was removed to determine the condition of the base metal. No base metal was. exposed and the underlying coatings were in acceptable condition.

• Still exist 3-11-05 *2EOC 16*

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0012.2000.2 Area/Component l.D.: 2-SCVl-0012 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 21 go 0 through 180°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Excessive amount of boron on floor and Tube steel and SS panel along containment shell plate near azimuth 11g 0 and El. 725'. It seems that boron was sprayed in that area. Valve 2KC314 seems to be leaking. No damage or degradation of containment surfaces was noted. *2EOC16* Valve appears to be repaired and boron has been cleaned.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0012.2005.1 Area/Component l.D.: 2-SCVl-0012 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 2/ go 0 through 180°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Impingement Ring removed from Penetration M240 during 2EOC16. Excessive rust was inside on piping and on penetration sleeve.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

19

- Response to RAI EMCB-1 Indication Number: 2-SCVl-0012.2005.2 Area/Component l.D.: 2-SCVl-0012 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 2/ go 0 through 180°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Coatings delamination on liner plate near azimuth 155 and El. 731.No base metal was exposed and the underlying coatings were in acceptable condition. *2EOC16* 3/11/05 Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0012.2005.3 Area/Component l.D.: 2-SCVl-0012 (Ref. Drawing MC-ISIC-2042-002).

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 2/ go 0 through 180°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Coatings delamination on liner plate near azimuth 180 and El.731.No base metal was exposed and the underlying coatings were in acceptable condition. *2EOC 16* 3/11/05 Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0012.2005.4 Area/Component l.D.: 2-SCVl-0012 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 2/ go 0 through 180°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: *2EOC16* The impingement ring for Penetration M-21g located approx. azimuth 176 and El. 731 was removed during inspection on 3/11105. Running through the penetration is a 12-inch RV System Return line, which is rusting and needs some coatings maintenance. Also the inside of the penetration needs coatings maintenance.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0013.2000.1 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface-Pipe Chase Quadrant 3/ 180° through 252°(approx.).

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Top edge of SS panel is pulled away from angle, leaving a gap for moisture to seep behind panel and liner plate. Azimuth 240°, EL 728'. No staining or moisture was observed in this area. *2EOC16 I SS panel had been repaired. 3/11/05, however, boron was found to be covering the moisture barrier in this area. Boron appeared to be coming from Valve 2Nl1g6.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0013.2000.2 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface-Pipe Chase Quadrant 3/ 180° through 252°(approx.).

Elevation: 728'+4" through 736'+3" 20

- Response to RAI EMCB-1 Description Of Abnormality/Degradation: Moisture Barrier 2-MBRl-003: No sealant was applied on a 2' section along panel and floor to prevent moisture from seeping to liner plate. The subject area is behind a column, making it difficult to access. Location is at azimuth 235°, El. 725'.

• 2EOC16* 3/11/05 Moisture Barrier repaired however, boron was found on the floor and on the SS panel in this area apparently coming from Valve 2Nl196.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0013.2000.3 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 3/ 180° through 252°(approx.).

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Loose coating and exposed base metal with light.

rusting color. No concerns of any metal thinning. Location is at azimuth 242° and EL 733 '.

Resolution: Acceptable during 2EOC16 Acceptable. 2EOC18.

Indication Number: 2-SCVl-0013.2000.4 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 3/ 180° through 252°(approx.).

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Loose coating and exposed base metal with light rusting color. No concerns of any metal thinning. Location: azimuth 243° at El. 733'.

Approximately 2 ft2 is affected.

Resolution: Acceptable during 2EOC16 3/11/05.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0013.2000.5 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 3/ 180° through 252°(approx.).

Elevation: 728'+4" through 736'+3" De~cription Of Abnormality/Degradation: The coating on penetrations M-351, M-358 and M-359 is loose and flaking in small quantities around the periphery of the penetration sleeves. Location is near azimuth 242°* and El. 736'.

Resolution: Accepted during 2EOC16 3/11/05 Acceptable. 2EOC18.

Indication Number: 2-SCVl-0013.2000.8 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 3/ 180° through 252°(approx.).

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Flaking topcoating observed around penetrations M-306 and M-315 near azimuths 195° and 198° near El. 733'. Underlying topcoat is intact and no base metal is exposed. *2EOC16* Penetration M-306 was found acceptable, however, M-307 and M-315 had heavy rust inside and M-315 also had some boron inside. At the time of inspection on 3/11/05 the impingement rings for Penetrations M-307 and M-315 had been removed allowing the inspection on the inside of these pens.

Resolution: Acceptable during 2EOC16.

21

- Response to RAI EMCB-1 Acceptable. 2EOC18.

Indication Number: 2-SCVl-0013.2000. 9 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 3/ 180° through 252°( approx.).

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Excessive amount of boron on floor and baseplate near sump area at azimuth 180° and El. 725'. *2EOC 16* At the time of the inspection boron still exist at the baseplate and also on the tube steel at this location.3/11/05 Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0013.2000.10 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 3/ 180° through 252°( approx.).

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Moisture and boric acid crystals observed at top of insulation panel at El. 728'+6" between azimuths 247 and 270, beneath the Fuel Transfer Tube radiation shielding concrete. The surfaces of the carbon steel Containment Vessel are not accessible for visual examination in this area and the-presence of borated water could cause corrosion of these inaccessible surfaces. Also, the possibility of a borated water leak must be addressed.

In addition, sealant has not been applied along the base of the insulation panel to prevent moisture intrusion. *2EOC16* At the time of inspection on 3/11/05 boron I boric acid crystals were found on the floor, overhead, and on the SS insulation panels underneath the Fuel Transfer Tube radiation shielding concrete.

Resolution: Problem Investigation Process Report PIP #M-00-03292 was written to address this issue. As a result, UT examinations were performed from the opposite side of the Containment Vessel from within the "Labyrinth" area on a limited portion of the exposed area (approximately 6" x 6'-0" long area between Elevation 728'+4" and 728'+ 1 O" approx.). The results of these UT examinations revealed that the thickness containment shell plate has been reduced by no more than 4%. And is considered acceptable at this time.

Reexaminations shall be performed within the next 12 - 18 months to confirm whether degradation is ongoing. The Containment ISi Plan shall be revised to add examination of these areas under Category E-C.

WR# 98148640 was written to clean boron and stains from this area on the insulation panel and floor between azimuths 247° and 270°.

WR # 98148642 was written to add approved sealant along the base of the insulation at the floor between azimuths 247° and 270°. *2EOC16* Engineering was notified and assessed the condition and WR#98340648 was written to clean area. The moisture barrier in this area appeared to be acceptable with no apparent water or moisture intrusion to the liner plate. During this outage UT readings on the liner plate were performed on the annulus side in this zone.

Indication Number: 2-SCVl-0013-2008.1 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 3/ 180° through 252°(approx.).

Elevation: 728'+4" through 736'+3" 22

- Response to RAI EMCB-1 Description Of Abnormality/Degradation: Inspection identified water, boron, and boric acid crystals underneath the fuel transfer tube radiation shielding concrete area. Also, rust staining was coming from studs where the stainless steel panels are bolted.

Resolution: PIP M-08-01567 was initiated and WR 948327 was written to clean the area prior to unit startup during 2EOC18.

• This area was dry during engineering mode 3 walkdown and also at mode 5 on 3/04/08 at the beginning of 2EOC18; however, there was staining on the SS panel. UT was performed during 2EOC18 and no metal loss was identified; therefore, this item is acceptable.

Indication Number: 2-SCVl-0014.2000.1 Area/Component l.D.: 2-SCVl-0014 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 4/ 270° through 360°.

Elevation: 728'+4" through 736'+3".

Description Of Abnormality/Degradation: Sealant is not completely installed behind column adjacent to the containment vessel insulation panel near azimuth 285° at the Pipe Chase floor.

Sealant should be corrected to adequately seal this joint. It should be noted that no evidence of moisture was observed at this particular location. Also, backer rod material will be necessary to control the depth of sealant that will have to be installed along the sides and top of the column base/insulation panel interface.

Resolution: Accepted during 2EOC16 Acceptable. 2EOC18.

Indication Number: 2-SCVl-0014.2000.2 Area/Component l.D.: 2-SCVl-0014 (Ref. Drawing MC-ISIC-:2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 4/ 270° through 360°.

Elevation: 728'+4" through 736'+3".

Description Of Abnormality/Degradation: There are various locations along the angle at the top of the insulation panel near the base of the containment vessel where.additional sealant material should be added to protect the Steel Containment Vessel from possible future moisture intrusion. These locations include the following:

1. At butt joints between horizontal and vertical legs of angle at top of insulation panels.

2. At vertical joints between insulation panels where the panels overlap.

3. Beneath the horizontal angle leg at the top of the insulation panel.

4. At any other locations necessary to. preclude moisture that could flow down the vessel wall from accessing behind the insulation panel.

Resolution: Accepted during 2EOC16 Acceptable. 2EOC18.

Indication Number: 2-SCVl-0014.2005.1 Area/Component l.D.: 2-SCVl-0014 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 4/ 270° through 360°.

Elevation: 728'+4" through 736'+3".

Description Of Abnormality/Degradation: Sealant/Moisture Barrier applied to bottom of SS insulation panel at approx. azimuth 270 thru azimuth 280 could not be inspected due to boron in the area at the time of inspection on 3/11/05.

Resolution: Accepted during 2EOC16 Acceptable. 2EOC18.

23

- Response to RAI EMCB-1 Indication Number: 2-MBRl-005-2008.1 Area/Component l.D.: 2-SCVl-0014 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 4/ 270° through 360°.

Elevation: 728'+4" through 736'+3".

Description Of Abnormality/Degradation: Moisture barrier 2-MBRl-005 at bottom of stainless steel panel 270°-273° is separating. Some rust staining also exists.

Resolution: W0#17 46671 was written during 2EOC18.

Indication Number: 2-MBRl-011-2008.

Area/Component l.D.: 2-SCVl-0014 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 4/ 270° through 360°.

Elevation: 728'+4" through 736'+3".

Description Of Abnormality/Degradation: Moisture barrier 2-MBRl-011 at top of stainless steel panel 270°-272° is separating. Some rust staining also exists.

Resolution: W0#17 46671 was written during 2EOC18.

Indication Number: 2-SCVl-0015.2000.1 Area/Component l.D.: 2-SCVl-0015 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - VX Fan Pit, Equipment Hatch and Airlock Areas/ 247° through 303°.

Elevation: 766'+8-l/2" through 797'+5" (approx.)

Description Of Abnormality/Degradation: Interior of penetration sleeve MK. E-396 in VX Fan Pit has minor coatings damage and needs corrective coatings maintenance.

Resolution: Acceptable during 2EOC16 Acceptable. 2EOC18.

Indication Number: 2-SCVl-0015.2000.2 Area/Component l.D.: 2-SCVl-0015 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface:- VX Fan Pit, Equipment Hatch and Airlock Areas/ 247° through 303°.

Elevation: 766'+8-l/2" through 797'+5" (approx.)

Description Of Abnormality/Degradation: Tape applied to electrical penetrations E-397, E-398, and E-399 in VX Fan Pit.

Resolution: Acceptable during 2EOC16 Acceptable. 2EOC18.

Indication Number: 2-SCVl-0015.2005.1 Area/Component I. D.: 2-SCVl-0015 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - VX Fan Pit, Equipment Hatch and Airlock Areas/ 247° through 303°.

Elevation: 766'+8-l/2" through 797'+5" (approx.)

Description Of Abnormality/Degradation: Liner plate has top coating damage and needs general coatings maintenance. Azimuth 268 I El. 770 near Lower Ice Condenser area Resolution: Acceptable during 2EOC16 Acceptable. 2EOC18.

Indication Number: 2-SCVl-0015. 2005. 2 Area/Component l.D.: 2-SCVl-0015 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - VX Fan Pit, Equipment Hatch and Airlock Areas/ 247° through 303°.

24

- Response to RAI EMCB-1 Elevation: 766;+8-l/2" through 797'+5" (approx.)

Description Of Abnormality/Degradation: Liner plate has top coat chipped and needs coatings maintenance. Azimuth 275 I El. 768 Resolution: Acceptable during 2EOC16 Acceptable. 2EOC18.

Indication Number: 2-SCVl-0015.2005.3 Area/Component l.D.: 2-SCVl-0015 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - VX Fan Pit, Equipment Hatch and Airlock Areas/ 247° through 303°.

Elevation: 766'+8-l/2" through 797'+5" (approx.)

Description Of Abnormality/Degradation: Personnel Airlock hinges approx. Azimuth 255 has topcoat delamination and needs general coatings maintenance.

Resolution: Acceptable during 2EOC16 Acceptable. 2EOC18.

. Indication Number: 2-SCVl-0015.2005.4 Area/Component l.D.: 2-SCVl-0015 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel interior Surface - VX Fan Pit, Equipment Hatch and Airlock Areas/ 247° through 303°.

Elevation:* 766'+8-l/2" through 797'+5" (approx.)

Description Of Abnormality/Degradation: Equipment Hatch Door-approx. Azimuth 288. Entire area needs general coatings maintenance.

Resolution: Acceptable during 2EOC16 Acceptable. 2EOC18 Indication Number: 2-SCVl-0016.2000.1

• Area/Component l.D.: 2-SCVl-0016 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Area Above Equipment Hatch/ 247° through 303°.

Elevation: 797'+5" (approx.) through 836'+9" Description Of Abnormality/Degradation: Interior of penetration MK M-383 is uncoated at connection of piping-to-pipe cap weld at center of pipe cap. Minor rusting observed. *2EOC16*

Same as last inspection.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0016.2005.1 Area/Component l.D.: 2-SCVl-0016 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Area Above Equipment Hatch/ 247° through 303°.

Elevation: 797'+5" (approx.) through 836'+9" Description Of Abnormality/Degradation: Minor surface rust observed on Pen. M-373.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0016.2005.2 Area/Component l.D.: 2-SCVl-0016 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Area Above Equipment Hatch/ 247° through 303°.

Elevation: 797'+5" (approx.) through 836'+9" Description Of Abnormality/Degradation: Equipment Hatch around Latch Bolts needs general 25

- Response to RAI EMCB-1 coatings maintenance.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCVl-0016.2005.3 Area/Component l.D.: 2-SCVl-0016 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface -Area Above Equipment Hatch/ 247° through 303°.

Elevation: 797'+5" (approx.) through 836'+9" Description Of Abnormality/Degradation: Equipment Hatch Guide approx. Az.276 at the top of ladder of Equipment Hatch needs general coatings maintenance.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-MBRl-005.2008.1 Area/Component l.D.: 2-MBRl-005 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface -Pipe chase approx. 270° -0°.

Elevation: 725' +O" Description Of Abnormality/Degradation: Moisture barrier 2-MBRl-005 at bottom of stainless steel panel 270°-273° is separating. Some rust staining also exists.

Resolution: Acceptable. WO#l746671 was written during 2EOC18 to correct the issue.

Indication Number: 2-MBRl-011-2008.1 Area/Component l.D.: 2-MBRl-011 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface -Pipe chase 270°-0°.

Elevation: 728'+4" Description Of Abnormality/Degradation: Moisture barrier 2-MBRl-011 at top of stainless steel panel 270° -272° is separating. Some rust staining also exists.

Resolution: W0#17 46671 was written during 2EOC18.

Acceptable 2EOC18.

Indication Number: 2-MBRl-020-2008.1 Area/Component l.D.: 2-MBRl-020 (Ref. Drawing MC-ISIC2~2042-002)

Location/Azimuth: Containment Vessel Interior Surface - approx. 107° inside excess letdown HX area Elevation: 738' +3"-749' +6" Description Of Abnormality/Degradation: Moisture barrier 2-MBRl-020 has areas that are; however, because this material is no separating.

Resolution: Acceptable during 2EOC18; however, because this material is no longer functioning as an effective moisture barrier, the containment ISi plan (File #MC-1042-CISl-001) should be revised to remove this moisture barrier from the inspection plan. Examination category ED examinations will no longer be performed on this material. Elimination of this inspection is considered acceptable because no moisture was observed in this area. There are no requirements to install or maintain these moisture barriers, except where specified by the Owner. Accepted 2EOC18.

Indication Number: 2-SCV0-0001.2000.1 Area/Component l.D.: 2-SCV0-0001 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Floor and Ring 1/ 0° through 360°.

Elevation: 725' + O" through 736' +5" 26

- Response to RAI EMCB-1 Description Of Abnormality/Degradation: Coatings have been applied to short sections of sealant (less than 30" total) around base of containment vessel at Annulus floor (El. 725'+0") at 131° - 135°' 140°, 217°, and 219°. This will make future inspections extremely difficult because the condition of the sealant may not be determinable if cracked coatings are observed (cracked coatings do not necessarily indicate that the sealant has degraded, but may require coatings removal to assess the sealant condition).

• 2EOC16 Same as last inspection.

Resolution: Acceptable during 2EOC16 Acceptable. 2EOC18.

Indication Number: 2-SCV0-0001.2000.2 Area/Component l.D.: 2-SCV0-0001 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Floor and Ring 1/ 0° through 360°.

Elevation: 725' + O" through 736' +5" Description Of Abnormality/Degradation: Ground area (4 in2) observed on the bottom of sleeve for pen. M221 needs to be coated. 137° (approx.)@ EL 733' (approx.).

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication *Number: 2-SCV0-0001-2008.1 Area/Component l.D.: 2-SCV0-0001 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Floor and Ring 1/ 0° through 360°.

Elevation: 725' + O" through 736' +5" Description Of Abnormality/Degradation: Boron was found on valve 12" below 2NCPT5141 at 191° on elevation 731' at first ring. Boron was found on gauge connection 2NCPG5140 at 200° on elevation 731' at first ring. Boron was found on bottom of tee on 2NCPG5120 at 7° at elev.

731' at first ring.

Resolution: Acceptable. 2EOC18. WR#00947857, WR#00947859, and WR#00947860 were written to correct these issues.

Indication Number: 2-SCV0-0002.2000.1 Area/Component l.D.: 2-SCV0-0002 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 2/ 0° through 360°.

Elevation: 736'+5" through 7 46'+5" Description Of Abnormality/Degradation: Bolt on flange for pen. Mk. M260 @ 171° and 7 43' (approx.) is touching the end of the vertical stiffener. *2EOC18* Same as last inspection.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCV0-0002-2008.1 Area/Component l.D.: 2-SCV0-0002 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 2/ 0° through 360°.

Elevation: 736'+5" through 7 46'+5" Description Of Abnormality/Degradation:

Resolution: Acceptable during 2EOC18. WR# 00947861 written to address.

Indication Number: 2-MBR0-002-2008.1 Area/Component l.D.: 2-SCV0-0002 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 2/ 0° through 360°.

Elevation: 736'+5" through 746'+5" 27

- Response to RAI EMCB-1 Description Of Abnormality/Degradation: Separation of moisture barrier 2-MBR0-002 at 270° El.

740' approx. 3/4" - 1/2".

Resolution: Acceptable during 2EOC18. WO# 1750256 was completed during 2EOC18.

Indication Number: 2-SCV0-0003.2000.3 Area/Component l.D.: 2-SCV0-0003 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 3/ 0° through 360°.

Elevation: 746'+5" through 756'+1 I" Description Of Abnormality/Degradation: Three abandoned drilled holes approx. W' diam. To 1/2" diam. and up to W' deep were drilled in sleeve of pen E247 at 160° and 751'-0".

This penetration was inspected further and the following data was recorded:

Four holes, approximately 3/8" in diameter are drilled and partially tapped into the O.D. of the stainless steel header plate (flange) on the Conax electrical penetration. When looking at the containment vessel from the Annulus, hole #1 is located at 12:00 O'clock and is 1.125" in depth, hole #2 is located at 2:00 O'clock and is 0.235" in depth, hole #3 is located at 3:00 O'clock and is 0.312" in depth, and hole #4 is located at 4:00 O'clock and is 0.312" in depth. All of these holes are aligned at a distance of 5-114" outward from the circumferential weld connecting the electrical penetration assembly to the Steel Containment Vessel sleeve.

Resolution: Problem Investigation Process Report PIP #M-00-03451 was written to address this issue. Acceptable during 2EOC16. Condition is unchanged during 2EOC18. Reference above PIP for more information.

Indication Number: 2-SCV0-0003.2000.4 Area/Component I.D.: 2-SCV0-0003 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 3/ 0° through 360°.

Elevation: 746'+5" through 756'+11" Description Of Abnormality/Degradation: Missing bolts on electrical box covers at the following electrical penetrations:

E140, E143,E202, E211, E142, E139,E209,E206,.

E246, E238, E232, E226, and E227.

No more than 2 fasteners were missing from each cover.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCV0-0003.2000.5 Area/Component l.D.: 2-SCV0-0003 (Ref. Drawings MC-ISIC-:2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 3/ 0° through 360°.

Elevation: 746'+5" through 756'+11" Description Of Abnormality/Degradation: Rusted sleeves were noted for the following electrical penetrations:

El20, El36, El40, El43, EI06, E109, E112, E115, E226,E227, E232, E238, E422, E425, E436, E203, E206, E209.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCV0-0003.2000.6 Area/Component l.D.: 2-SCV0-0003 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 3/ 0° through 360°.

Elevation: 746'+5" through 756'+11" Description Of Abnormality/Degradation: Damaged Insulation on pen. M286 @ 752' -0" and azimuth 175°.

28

- Response to RAI EMCB-1 Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCV0-0003.2000. 7 Area/Component l.D.: 2-SCV0-0003 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 3/ 0° through 360°.

Elevation: 7 46'+5" through 756'+11" Description Of Abnormality/Degradation: Damaged Insulation noted on penetration Mk. M-465 near 750' -0" and azimuth 355°.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCV0-0003.2005.1 Area/Component l.D.: 2-SCV0-0003 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 3/ 0° through 360°.

Elevation: 7 46'+5" through 756'+11" Description Of Abnormality/Degradation: Rusted sleeve was noted for electrical penetration E246.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCV0-0003.2005.2 Area/Component l.D.: 2-SCV0-0003 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 3/ 0° through 360°.

Elevation: 7 46'+5" through 756'+11" Description Of Abnormality/Degradation: Damaged Insulation noted on penetration Mk. M-3100.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCV0-0004.2005.1 Area/Component l.D.: 2-SCV0-0004 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 4/ 0° through 360°.

Elevation: 756'+11" through 766'+5" Description Of Abnormality/Degradation: Rusted sleeves were noted on the following electrical penetrations:

El 17, El 14, El 11, E108,E105, E125, E128, E131, E268,E269, E270, E271,E222, E223, E225, E231, E237, E251, E245, E242, E244, E241 Resolution: Acceptable. These conditions were corrected since the previous inspection in 2000.

Acceptable. 2EOC18.

Indication Number: 2-SCV 0-0004.2005.2 Area/Component l.D.: 2-SCV0-0004 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 4/ 0° through 360°.

Elevation: 756'+11" through 766'+5" Description Of Abnormality/Degradation: Rusted sleeves were noted on electrical penetration E439.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

29

- Response to RAI EMCB-1 Indication Number: 2-SCV0-0005.2000.1 Area/Component l.D.: 2-SCV0-0005 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface-Annulus Ring 5/ 0° through 360°.

Elevation: 766'+5" through 776'+5" Description Of Abnormality/Degradation: Bulge observed in shell plate at weld seam near 771 '-

0" and azimuth 269°. Welds and coating seemed intact.

Resolution: The bulge is located near the intersection of shell plates and the reinforcing collar for the Equipment Hatch. Visual examination estimates that the bulge is no more than approximately 1" in projection and can be attributed to fit-up of butt-welded plates at this location. Based on additional visual examinations, it is clear that this condition is not the result of service and has existed since original construction. No evidence of damage or degradation was observed.

The condition is deemed acceptable and has been noted for future reference.

This condition is unchanged and was seen again during 2EOC18 (2008).

Indication Number: 2-SCV0-0007-2005.1 Area/Component l.D.: 2-SCV0-0007 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 7/ 0° through 360°.

Elevation: 786'+5" through 796'+5".

Description Of Abnormality/Degradation: Area on ring stiffener web has been ground to bare metal at 220°. Condition of base metal is O.K.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCV0-0007-2005.2 Area/Component l.D.: 2-:SCV0-0007 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 7/ 0° through 360°.

Elevation: 786'+5" through 796'+5" Description Of Abnormality/Degradation: Duct hanger weld not coated at 215°, El. 788'.

Condition of base metal is O.K.

Resolution: Acceptable. Due to accessibility, coatings maintenance is NOT recommended.

Continue to monitor during future inspections.

Acceptable during 2EOC18.

Indication Number: 2-SCV0-0009.2000. I Area/Component l.D.: 2-SCV0-0009 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 9/ 0° through 360°.

Elevation: 806'+5" through 816'+5" Description Of Abnormality/Degradation: Coatings damage, minor corrosion, and staining on stiffening ring web and weld between ring flange and web between 262° and 264°@ 806'+5".

Resolution: Acceptable during 2EOC16. No change from previous inspection during 2EOC18.

Indication Number: 2-SCV0-0009.2000.2 Area/Component l.D.: 2-SCV0-0009 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 9/ 0° through 360°.

Elevation: 806'+5" through 816'+5" Description Of Abnormality/Degradation: Topcoat delamination was noted on ring stiffener web

@ 260° and 806'+5". No base metal degradation was noted.

Resolution: Acceptable during 2EOC16. No change from previous inspection during 2EOC18.

Coatings repairs are not recommended at this time.

30

- Response to RAI EMCB-1 Indication Number: 2-SCV0-0009.2000.3 Area/Component l.D.: 2-SCV0-0009 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 9/ 0° through 360°.

Elevation: 806'+5" through 816'+5"

-Description Of Abnormality/Degradation: Penetration sleeves for electrical penetrations Mk. E-365 and E-366 are uncoated. Minor surface rusting was observed and it appears that these have never been coated.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCV0-0009.2000.4 Area/Component l.D.: 2-SCV0-0009 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 9/ 0° through 360°.

Elevation: 806'+5" through 816'+5" Description Of Abnormality/Degradation: Penetration sleeve for mechanical penetration Mk. M-367 has had the coatings removed. The exposed base metal surfaces are covered with UT couplant.

Resolution: Acceptable during 2EOC16.

Acceptable. 2EOC18.

Indication Number: 2-SCV0-0010.2000.1 Area/Component l.D.: 2-SCV0-0010 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 10/ 0° through 360°.

Elevation: 816'+5" through 826'+5" Description Of Abnormality/Degradation: Coatings repairs completed in the recent past have not been effective. Delamination of topcoating was observed in the vicinity of azimuth 260° and 816'+5", and most of the delaminated coatings appear to have sound coatings on the base metal beneath the damaged coatings. Minor rusting was also observed on butt-weld between ring web plates in this area.

Resolution: Acceptable. Conditions identified in 2000 have been corrected.

Acceptable during 2EOC18.

Indication Number: 2-SCV0-0010.2000.2 Area/Component l.D.: 2-SCV0-0010 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 1 O/ 0° through 360°.

Elevation: 816'+5" through 826'+5" Description Of Abnormality/Degradation: Ring stiffener web beneath penetration Mk. M-372 near azimuth 250° has coatings damage and moderate corrosion with metal loss estimated to be less than 5% of the plate thickness. Some minor pitting is beginning to occur in this area. Moisture from reinsulated glycol piping in this area is aggravating the condition.

Resolution: Acceptable. Conditions identified in 2000 have been corrected.

Acceptable during 2EOC18.

Indication Number: 2-SCV0-0010.2000.3 Area/Component l.D.: 2-SCV0-0010 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 10/ 0° through 360°.

Elevation: 816'+5" through 826'+5" Description Of Abnormality/Degradation: Insulation boxed around glycol piping is in contact with the top surface of the stiffening ring web@ 230° and 816'+5". Water was observed at the base of the insulation, and coatings damage and corrosion were observed beneath the edge of the insulation. Also, insulation boxed around glycol piping is in contact with the top surface of the stiffening ring web @ 243 ° and 816'+5". At this location, no corrosion was observed, but water 31

- Response to RAI EMCB-1 was observed around the base of the insulation.

Resolution: Acceptable at time of inspection in 2EOC16 (2005). Conditions identified in 2000 have been corrected.

Acceptable during 2EOC18.

Indication Number: 2-SCV0-0010.2000.4 Area/Component l.D.: 2-SCV0-0010 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 10/ 0° through 360°.

Elevation: 816'+5" through 826'+5" Description Of Abnormality/Degradation: Coatings recently applied to stiffening ring web near azimuth 178° to 186° at elevation 816'+5" are not performing acceptably. No damage to underlying base metal was observed and underlying coatings appear intact.

Resolution: Acceptable at time of inspection in 2EOC16 (2005). Conditions identified in 2000 have been corrected. Acceptable during 2EOC18.

Indication Number: 2-SCV0-0010.2005.1 Area/Component I. D.: 2-SCV0-0010 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 10/ 0° through 360°.

Elevation: 816'+5" through 826'+5" Description Of Abnormality/Degradation: Delaminated coatings approximately 3" x 36" on ring stiffener web approx. 206° - 210°. Base metal condition is O.K.

Resolution: Acceptable during 2EOC16. Conditions identified in 2005 have been corrected.

Acceptable during 2EOC18.

Indication Number: 2-SCV0-0011.2000.2 Area/Component l.D.: 2-SCV0-0011 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -:-Annulus Ring 11/ 0° through 360°.

Elevation: 826' +5" through 835' +9" Description Of Abnormality/Degradation: Various locations were observed on.top of stiffening ring web between azimuths 228°'and 270° at elevation 826'+5" where topcoating delamination and moisture was seen.

Resolution: Acceptable. Damaged topcoatings have been removed, but area has not been recoated. No base metal degradation was observed. Coatings maintenance work is planned per Work Order#98652815-03. Acceptable during 2EOC18 Indication Number: 2-SCV0-0011.2000.3 Area/Component l.D.: 2-SCV0-0011 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 11/ 0° through 360°.

Elevation: 826' +5" through 835' +9" Description Of Abnormality/Degradation: Minor rusting observed at bottom of tube steel support welded to the top surface of the stiffening ring web at 300° and 826'+5". No significant metal loss was observed at this time.

Resolution: Acceptable. Condition is unchanged from that reported during previous inspection in 2000. Work to be performed per WO #98652815-03.

Acceptable during 2EOC18 Indication Number: 2-SCV0-0012.2000.2 Area/Component l.D.: 2-SCV0-0012 (Ref. Drawings MC-ISIC-2042-004, -005, and -006)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 12 and Dome Exterior/

0° through 360°.

Elevation: 835'+9" through 894'+3-11/32" Description Of Abnormality/Degradation: A number of locations were observed around the dome 32

- Response to RAI EMCB-1 exterior at elevation 840' (approx.) where topcoating was observed to be flaking, blistering, and/or delaminating. At each of these locations, the underlying coatings were intact and no corrosion was noted. At some of these locations, condensation was observed under the delaminating coatings.

Resolution: Acceptable during 2EOC16. These conditions are unchanged from the previous inspection in 2000. Acceptable because no damage or degradation was observed to the base metal. Coatings maintenance work is planned per Work Order #98652815-:03.

Acceptable 2EOC18.

Indication Number: 2-MBR0-002-2008.1 Area/Component l.D.: 2-MBR0-002 (Ref. Drawing MC-ISIC2-2042-005)

Location/Azimuth: Containment Vessel Exterior Surface - consists of two vertical and one horizontal joints 240° - 270° Elevation: 725'+0"-7 42'+1 ", 7 42'+1" Description Of Abnormality/Degradation: Separation of moisture barrier 2-MBR0-002 at 270° EL 7 40' approx. %" - W'.

Resolution: WO# 1750256 was written and work completed during 2EOC18.

Indication Number: 2-PENE-C152.2000.1 Area/Component l.D.: 2-PENE-C152 (Ref. Drawings MC-ISIC-2042-002, -004, -011, -012)

Location/Azimuth: Containment Vessel - Lower Airlock/ 63°(approx.).

Elevation: 741 '+5" (approx.)

Description Of Abnormality/Degradation: Flaking paint observed on hinge mechanisms/surfaces on both doors. No base metal exposed. Coatings scratches observed on inside of barrel at floor grating and minor coating concerns such as dents and scratches were noted at several other locations.

Resolution: Acceptable 2EOC18. No change form previous inspection in 2005.

Indication Number: 2-PENE-C392.2000.1 Area/Component 1.D.: 2-PENE-C392 (Ref. Drawings MC-ISIC-2042-003, -005, -013, -014)

Location/Azimuth: Containment Vessel - Upper Airlock/ 253°(approx.).

Elevation: 782'+5" (approx.)° Description Of Abnormality/Degradation: Flaking paint observed on both inner and outer door hinges.

Resolution: Acceptable 2EOC18. No change since previous inspection in 2005.

Indication Number: 2-PENE-C412.2000.1 Area/Component LD.: 2-PENE-C412 (Ref. Drawings MC-ISIC-2042-003, -005, -013, -014)

Location/Azi111uth: Containment Vessel - Equipment Hatch/ 287°(approx.).

Elevation: 787'+5" (approx.)

Description Of Abnormality/Degradation: Minor dings noted at various locations on hatch cover, latching mechanisms, and Equipment Hatch Barrel.

Resolution: Acceptable 2EOC18. No change form previous inspection in 2005.

2EOC19 No recordable indications were identified during 2EOC19 2EOC20 Indication Number: 2-SCVI -0002.2011.1 Area/Component l.D.: 2-SCVl-0002 (Ref. Drawings MC-ISIC-2042-0021 and -003) 33

- Response to RAI EMCB-1 Location/Azimuth: Containment Vessel Interior Surface - Vent Unit AID Room/325° through 35°.

Elevation: 738'+3" through 764'+2-112" Description Of Abnormality/Degradation: Minor staining between the floor joint and the liner plate. Area was dry at time of inspection. No degradation noted.

Resolution: Acceptable. 2EOC20 Indication Number: 2-SCVl-0003.2011.1 Area/Component l.D.: 2-SCVl-0003 (Ref.1 Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Accumulator A Room/34° through 54° Elevation: 738'+3" through 764'+2-1/2" Description Of Abnormality/Degradation: Bare metal spot was identified at approximately 48 degrees /e1.743. Minor staining was also identified between the floor joint and the liner plate. No unacceptable conditions were noted during the inspection.

Resolution: Acceptable. 2EOC20. The bare metal area has been coated and accepted. The work was performed under WO# 1923248-02 Indication Number: 2-SCVl-0004.2000.1, 2-SCVl-0004.2000.2, 2-SCVl-0004.2000.3 Area/Component l.D.: 2-SCVl-0004 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Lower Airlock Area/54° through 126°.

Elevation: 738'+3" through 764'+2-112" Description Of Abnormality/Degradation: Boric acid crystals, staining, and rust observed on electrical penetrations E-135 and E-136 near elevation 754' and azimuth 74° in lower containment above and adjacent to the airlock. The bottom bolting of these penetrations are rusted sufficiently that an adequate assessment could not be made of the condition of the bolting.

Spare electrical penetration Mk. E-146 at azimuth 82°, elevation 752'+0" is uncoated on inside of pipe cap. Surface rust from atmospheric exposure was observed.

Moisture Barrier, 1-MBR1-016 (azimuth 105°, elev. 738'+3" to 752'+0") is old material. Evidence of cracking, separation is visible. No Corrosion or staining was noted. No evidence of moisture intrusion observed. Same condition found 2EOC16.

Resolution: These areas were acceptable during 2EOC16.

Acceptable 2EOC20 Indication Number: 2-SCVl-0004.2008.1 Area/Component l.D.: 2-SCVl-0004 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Lower Airlock Area/54° through 126°.

Elevation: 738'+3" through 764'+2-112" Description Of Abnormality/Degradation: Hinges on inside of door on lower personnel airlock need coatings maintenance due to coatings flaking.

Resolution: Acceptable. WO 1746671 written during 2EOC18.

Acceptable 2EOC20 Indication Number: 2-SCVl-0004.2011.1 Area/Component l.D.: 2-SCVl-0004 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Lower Airlock Area/54° through 126°.

Elevation: 738'+3" through 764'+2-112" Description Of Abnormality/Degradation: Moisture Barrier 2-MBRl-017 in this zone was found to be separating and unacceptable at the time of inspection. All other areas including 2-MBRl-015 and 2-MBRl-018 in this zone were found in an acceptable condition.

Resolution: WO# 1923248-02 has been written to correct this condition. Moisture Barrier 2-MBRl-017 has been repaired and inspections completed and acceptable. Acceptable 2EOC20.

VT-I was also performed at this location (E04.11.0003) and found acceptable.

34

- Response to RAI EMCB-1 Acceptable 2EOC20 Indication Number: 2-SCVl-OOS-2005.1 Area/Component l.D.: 2-SCVl-0005 (Ref Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Excess Letdown HX Room 106° through 126°.

Elevation: 738'+3" through 752'+0" Description Of Abnormality/Degradation: Dried staining observed on containment shell plate.

No active moisture was seen, and these conditions have been noted during previous inspections. No degradation of containment metallic surfaces was observed.

Resolution: Acceptable during 2EOCl6.

• Same condition found during 2EOC18.

Indication Number: 2-MBRl-020-2008.1 Area/Component l.D.: 2-SCVl-0005 (Ref Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Excess Letdown HX Room 106° through 126°.

Elevation: 738'+3" through 752'+0" Description Of Abnormality/Degradation: Moisture barrier 2-MBRl-020 has areas that are separating.

Resolution: Acceptable during 2EOC18; however, because this material is no longer functioning as an effective moisture barrier, the containment ISi plan (File #MC-1042-CISl-OOI) should be revised to remove this moisture barrier from the inspection plan. Examination category E-D examinations will no longer be performed on this material. Elimination of this inspection is considered acceptable because no moisture was observed in this area. There are no requirements to install or maintain these moisture barriers, except where specified by the Owner.

Accepted 2EOC18.

Indication Number: 2-SCVl-005.2011.1 Area/Component l.D.: 2-SCVl-0005 (Ref Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Excess Letdown HX Room 106° through 126°.

Elevation: 738'+3" through 752'+0" Description Of Abnormality/Degradation: Minor staining observed on containment shell plate.

The condition found was acceptable and has been identified in previous inspections. Area was dry at time of inspection. Also in this zone was Moisture Barrier 2-MBRl-019 and it was found in an acceptable condition. No other items noted.

Resolution: Acceptable 2EOC20 Indication Number: 2-SCVl-0007.2000.1 Area/Component l.D.: 2-SCVl-0007 (Ref. Drawings MC-ISIC-2042-002 and -003)

Location/Azimuth: Containment Vessel Interior Surface - Vent Unit B/C Room 147° through 212°.

Elevation: 738'+3" through 764'+2-1/2" Description Of Abnormality/Degradation: Loose, flaking, and blistering topcoating was observed near azimuth 169° between elevations 738' and 750' (approx.). Loose material was removed to assess the condition of the base metal. No base metal was exposed and underlying coatings were intact and acceptable.

Resolution: Acceptable during 2EOC16.

Acceptable 2EOC20 35 J.

- Response to RAI EMCB-1 Indication Number: 2-SCVl-0007-2008.1 Area/Component l.D.: 2-SCVl-0007 (Ref. Drawings MC-ISIC-2042-002 and -003)

Location/Azimuth: Containment Vessel Interior Surface - Vent Unit B/C Room 147° through 212°.

Elevation: 738'+3" through 764'+2-1/2" Description Of Abnormality/Degradation: Penetration M260 has minor rust and staining.

Resolution: Acceptable. WO 17 46671 written for coatings maintenance during 2EOC18.

Acceptable 2EOC20 Indication Number: 2-SCVl-0008.2000.1 Area/Component l.D.: 2-SCVl-0008 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface -Accumulator C Room 214° through 233°.

Elevation: 738'+3" through 764'+2-112" Description Of Abnormality/Degradation: Loose, flaking, and blistering top coating was observed behind Accumulator C Tank near azimuth 220° from the floor elevation and continuing up the Containment Vessel shell in this room. Approximately 3 square feet of coatings were removed.

Loose material was removed to assess the condition of the base metal. No base metal was exposed and underlying coatings were intact and acceptable. However, a burn mark was noted near azimuth 222° from welded attachment made on the exterior side of the vessel shell plate.

Base metal was not exposed. *Coatings maintenance in progress. 3-11-05 Resolution: Acceptable during 2EOC16. Acceptable during 2EOC18.

Acceptable 2EOC20 Indication Number: 2-SCVl-0009.2000.1 Area/Component l.D.: 2-SCVl-0009 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Fuel Transfer Tube Area/234° through 303°.

Elevation: 738'+3" through 764'+2-112" Description Of Abnormality/Degradation: Sealant applied along the horizontal joint between the Fuel Transfer Tube Shielding concrete and the Steel Containment Vessel at 750'+0" between azimuths 247° and 270° is performing well and is in very good condition. No evidence of current or past moisture intrusion or staining was observed along this joint. Also, the sealant installed along the vertical joints on either side of the Fuel Transfer Tube Shielding Concrete is performing acceptably and is in good condition.

This zone was found in an acceptable condition during 2EOC20 inspection. No evidence moisture was identified. Also in this zone are Moisture Barriers 2-MBRl-028, 2-MBRl-029, and 2-MBRl-030. At the time of the inspection they were found in acceptable condition.

Resolution: Acceptable. 2EOC16. Acceptable. 2EOC18.

Acceptable 2EOC20 Indication Number: 2-SCVl-0010.2011.1 Area/Component l.D.: 2-SCVl-0010 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Accumulator D Room/305° through 326°.

Elevation: 738'+3" through 764'+2-112" Description Of Abnormality/Degradation: Minor staining exists between the floor joint and the liner plate. At the time of the inspection this area was dry. No unacceptable conditions were observed during the 2EOC20 inspection.

Resolution: Acceptable 2EOC20 36

- Response to RAI EMCB-1 Indication Number: 2-SCVl-0011.2011.1 Area/Component l.D.: 2-SCVl-0011 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 1/0° through go 0

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: This zone was inspected during 2EOC20. Moisture Barrier 2-MBRl-001 and 2-MBRl-006 fall in this Pipe Chase Quadrant 2-MBRl-001 has an area that is separating at 45 degrees el.725 /concrete floor and SS Insulation Panel. The material appears to be aging and has separated.

Resolution: Unacceptable condition due to 2-MBRl-001 separating. WO#lg23248-02 has been written to correct this issue during 2EOC20. Repair of moisture barrier and inspection has been completed and deemed acceptable. Acceptable 2EOC20.

Indication Number: 2-2CVl-0011.2011.2 Area/Component l.D.: 2-SCVl-0011 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 1/0° through go 0

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: During 2EOC20 outage Moisture Barrier 2-MBRl-001 was partially removed due to access to the liner plate at Az. 3g degrees for ISi VT-I exam (IWE Component ID. E04.11.0008 found on drawing MC-ISIC2-2042-0020 I Rev. 0.) The SS insulation panel was cut for the modification at az.30 degrees and the MB was removed. This area will need to be reinspected when the SS Panel and the Moisture Barriers replaced. Dwg.

should be updated/revised to reflect location and size as noted in Mod.

Resolution: WO# 1 g23248-02 has been written to replace Moisture Barrier. This area should be reinspected when Mod work is complete. GO Section XI Engineer and Site Engineer were notified of changes.

Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. VT-I was performed at this location at liner plate (E04.11.0008) and found acceptable. See File No. MC-1131.00 for 2EOC20 ISi records. Acceptable 2EOC20.

Indication Number: 2-SCVl-0012.2011.2 Area/Component l.D.: 2-SCVl-0012 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 2/ go 0 thru 180° Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: After Moisture Barrier 2-MBRl-002 was inspected a modification required a partial amount to be removed at az.94 degrees and az.150 degrees for ISi VT-1 exams OWE Component ID's are E04.11.0oog and E04.11.0010 and are shown on Dwg. MC-ISIC2-2042-0020 I Rev. 0.)

Resolution: WO# 1 g23248-02 has been written to replace Moisture Barrier. This area should be reinspected when Mod work is complete. GO Section XI Engineer and Site Engineer were notified of changes.

Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. VT-1 was performed at this location at liner plate (E04.11.0009, E04.11.00 1 O) and found acceptable. See File No. MC-1131.00 for 2EOC20 ISi records.

Acceptable 2EOC20.

Indication Number: 2-SCVl-0013.2011.2 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 3 I 180° through 252°( approx.).

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: After inspection during 2EOC20 a partial amount of SS Insulation Panel and Moisture Barrier 2-MBRl-003 were removed for ISi VT-1 exam at Az. 208 37

- Response to RAI EMCB-1 (IWE Component ID E04.11.0011 shown on Dwg. MC-ISIC2-2042-0020-1 Rev. 0). This Dwg.

shows the location at az. 205 degrees.

Resolution: WO# 1923248-02 was written to correct and replace coatings and Moisture Barrier during 2EOC20. After completion of this work inspection should be completed on this area. Also contacted GO Section XI Engineer and site Engineer of changes.

Insulation panels have been reinstalled and moisture barrier repaired and inspected and found acceptable. Acceptable 2EOC20. VT-1 was performed at this location at liner plate (E04.11.0011) found acceptable. Acceptable 2EOC20.

Indication Number: 2-SCVl-0014.2011.1 Area/Component l.D.: 2-SCVl-0014 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 41 270° through 360°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: This zone also consists of Moisture Barriers 2-MBRl-005, 2-MBRl-010, and 2-MBRl-011. The area was inspected during 2EOC20 and all three Moisture Barriers found unacceptable.

At 345degrees 2-MBRl-005 was coated with paint/area and could not be accessed properly, 2-MBRl-005 at approximately 322degrees to 310 degrees El. 725 is separated.

2-MBRl-005, 2-MBRl-0010, and 2MBRl-0011 at approximately 286 degrees to 270 degrees, el.725 and el.728, are separated due to insulation panels removed for VT-I exams. VT-I inspection at Az. 280 degrees per WO# 1929148; however, area was originally identified at az.

316 degrees per MC-ISIC2-2042-0020, IWE Component ID E04.11.0012.

Resolution: WO# 1923248-02 was written to repair these items during 2EOC20. Inspections should be performed as the work is completed. Notified GO Section XI Engineer and site Engineer of changes.

All areas have been repaired and inspections deemed acceptable. Also, VT-1 performed on liner plate at 280 deg. (E04.11.0012). Drawing MC-ISIC2-2042-0020 needs revised showing change in location. Acceptable 2EOC20 Indication Number: 2-MBRl-001.2011.1 Area/Component 1.0.: 2-MBRl-001 (Ref. Drawing MC-ISIC2-2042-002)

Location/Azimuth: c'ontainment Vessel Interior Surface -Pipe chase 0°- 90°.

Elevation: 725'+0" Description Of Abnormality/Degradation: Moisture Barrier was found separated at approximately az. 45 degrees el. 725+0 I insulation panel I concrete interface. Also, a partial area of 2-MBRl-001 was removed at Az. 30 due to access to the liner plate for ISi VT-1 exam (IWE Component ID E04.11.0008).

Resolution: WO# 1923248-02 was written to correct issues this outage 2EOC20. Inspection of these unacceptable conditions should be completed when the corrections are complete. GO Section XI Engineer and site Engineer were contacted about changes.

Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. Acceptable 2EOC20.

Indication Number: 2-MBRl-002.2011.1 Area/Component l.D.: 2-MBRl-002 (Ref. Drawing MC-ISIC2-2042-002)

Location/Azimuth: Containment Vessel Interior Surface -Pipe chase 90°-180°.

Elevation: 725'+0" Description Of Abnormality/Degradation: During the initial inspection of Moisture Barrier it was found in acceptable condition. Two areas were removed at az.94 degrees and az.150 degrees for access to the liner plate for VT-1 exam (These areas are shown on dwg. MC-ISIC2-2042-0020 rev. 0 (IWE Component ID E04.11.0009 & E04.11.0010).

38

- Response to RAI EMCB-1 Resolution: WO# 1923248-02 was written to correct issues this outage 2EOC20. Inspection of these unacceptable conditions should be completed when the corrections are complete. GO Section XI Engineer and site Engineer were contacted about changes.

Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. Acceptable 2EOC20.

Indication Number: 2-MBRl-003.2011.1 Area/Component l.D.: 2-MBRl-003 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface -Pipe chase approx. 186°-240°.

Elevation: 725'+0" Description Of Abnormality/Degradation: During the initial inspection of Moisture Barrier it was found in an acceptable condition. During 2EOC20 a partial area of the moisture barrier was removed at Az. 208 el. 725 for access to the liner plate for VT-I exams (IWE Component ID E04.1 l.0011 ). This *is shown on dwg. MC-ISIC2-2042-0020 rev. 0. Location shown on this dwg.

is approx. az. 205.

Resolution: WO# 1923248-02 was written to correct issues this outage 2EOC20. Inspection of these unacceptable conditions should be completed when the corrections are complete. GO Section XI Engineer and site Engineer were contacted about changes.

Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. Acceptable 2EOC20.

Indication Number: 2-MBRl-004.2011.1 Area/Component l.D.: 12-MBRl-004 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface -Pipe chase approx.2400-270°.

Elevation: 725'+0" Description Of Abnormality/Degradation: This Moisture Barrier was in acceptable condition during 2EOC20 inspection. The SS insulation panels, walls, and floor in this area were still covered with staining even after cleaning from previous outage. Also, delaminating floor coatings was identified. This area was dry at the time of the inspection,, however, during fuel movement during 2EOC20 water became present. In the past boron was identified in this location when water was present. During 2EOC20 UT EXAMS were performed on the opposite side of the containment shell plate at this location and were all found to be acceptable.

Resolution: W0#1923248-02 was written for 2EOC20 coatings. Area cleaned and coated prior to fuel movement. Acceptable 2EOC20.

PIP M-08-1567 is tracking resolution of refueling canal leak.

Indication Number: 2-MBRl-005.2008.1 Area/Component l.D.: 2-MBRl-005 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface -Pipe chase approx. 270°-0°.

Elevation: 725'+0" Description Of Abnormality/Degradation: Moisture barrier 2-MBRl-005 at bottom of stainless steel panel 270°-273° is separating. Some rust staining also exists.

Resolution: Acceptable. W0#17 46671 was written during 2EOC18 to correct this issue.

Acceptable 2EOC20.

Indication Number: 2-MBRl-005.2011.1 Area/Component l.D.: 2-MBRl-005 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface -Pipe chase approx. 270°-0°.

Elevation: 725'+0" Description Of Abnormality/Degradation: Moisture Barrier found to be in an acceptable condition during 2EOC20 inspection except for the following: Moisture Barrier separated from az. 270 to 39

- Response to RAI EMCB-1 az. 286, az. 310 to az. 322, and also has been painted at az. 345 which is restricting the inspection.

Resolution: WO# 1923248-02 was written for 2EOC20 outage coatings and moisture barrier repair work. Repair of moisture barrier and inspection has been completed and deemed acceptable. Acceptable 2EOC20.

Indication Number: 2-MBRl-010.20011.1 Area/Component l.D.: 2-MBRl-010 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface -Pipe chase 270°. Vertical area of fuel transfer tube Elevation: 728'+4"-763'+ 3" Description Of Abnormality/Degradation: The moisture barrier condition was found separated and unacceptable during 2EOC20 inspection.

Resolution: WO# 1923248-02 was written to correct coatings and moisture barrier issues during 2EOC20. Repair of moisture barrier and inspection has been completed and deemed acceptable. Acceptable 2EOC20.

Indication Number: 2-MBRl-011-2008.1 Area/Component l.D.: 2-MBRl-011 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe chase 270°-0°.

Elevation: 728'+4" Description Of Abnormality/Degradation: Moisture barrier 2-MBRl-011 at top of stainless steel panel 270°-272° is separating. Some rust staining also exists.

Resolution: W0#17 46671 was written during 2EOC18.

Acceptable 2EOC20.

Indication Number: 2-MBRl-011.2011.1 Area/Component l.D.: 2-MBRl-011 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe chase 270°-0°.

Elevation: 728'+4" Description Of Abnormality/Degradation: Moisture Barrier was found to be separated at az. 286 to az. 270, el. 728+4 due to modification, which required removal of SS insulation panel in this location for access to liner plate for VT-1 exam (E04.11.0012).

The remaining MB was acceptable at the time of the inspection.

Resolution: WO# 1923248-02 was written during 2EOC20 to correct coatings and moisture barrier issues. Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. Acceptable 2EOC20.

Indication Number: 2-MBRl-017.2011.1 Area/Component l.D.: 2-MBRl-017 (Ref. Drawing MC-ISIC2-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - approx. 105°-122° above excess letdown heat HX area/seal table.

Elevation: 752'+0" Description Of Abnormality/Degradation: Moisture Barrier was found separating and unacceptable during 2EOC20 inspection. The areas separated were located at az. 106 towards az. 122 (3ft. 6in.) and az.122 towards az. 106 (3ft.) approximately 1/32 in width.

Resolution: WO# 1923248-02 was written to correct coatings and moisture barrier issues during 2EOC20 outage. Repair of moisture barrier and inspection has been completed and deemed acceptable. Acceptable 2EOC20. VT-1 was also performed at this moisture barrier (E04.11.0003) and found acceptable.

40 1

- Response to RAI EMCB-1 Indication Number: 2-SCV0-0001-2008.1 Area/Component l.D.: 2-SCV0-0001 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Floor and Ring 1/ 0° through 360°.

Elevation: 725'+0" through 736'+5" Description Of Abnormality/Degradation: Boron was found on valve 12" below 2NCPT5141 at 191° on elevation 731' at first ring. Boron was found on gauge connection 2NCPG5140 at 200° on elevation 731' at first ring. Boron was found on bottom of tee on 2NCPG5120 at 7° at elev.

731' at first ring.

Resolution: Acceptable. 2EOCl8. WR#00947857, WR#00947859, and WR#00947860 were written to correct these issues. Acceptable 2EOC20 Indication Number: 2-SCV0-0001-2011.1 Area/Component l.D.: 2-SCV0-0001 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Floor and Ring 1/ 0° through 360°.

Elevation: 725'+0" through 736'+5" Description Of Abnormality/Degradation: This zone was inspected and found to be acceptable except for Moisture Barriers 2-MBR0-001 and 2MBR0-002 which were found separated and cracked.

Resolution: WO# 1923248-02 was written to correct coatings and moisture barrier issues during 2EOC20 outage. Acceptable 2EOC20.

Indication Number: 2-MBR0-002-2008.1 Area/Component l.D.: 2-SCV0-0002 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 2/ 0° through 360°.

Elevation: 736'+5" through 7 46'+5" Description Of Abnormality/Degradation: Separation of moisture barrier 2-MBR0-002 at 270° El.

740' approx. 3/4"-1/2".

Resolution: Acceptable during 2EOC18. W0#1750256 was completed during 2EOC18.

Acceptable 2EOC20 Indication Number: 2-SCV0-0002-2011.1

.Area/Component l.D.: 2-SCV0-0002 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 2/ 0° through 360°.

Elevation: 736'+5" through 746'+5" Description Of Abnormality/Degradation: This zone was inspected and found acceptable except for 2-MRB0-002, which was found, cracked and separated.

Resolution: WO# 1923248-02 was written to correct coatings and moisture barrier issues during 2EOC20 outage. Acceptable 2EOC20.

Indication Number: 2-SCV0-0005.2000.1 Area/Component l.D.: 2-SCV0-0005 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 5/ 0° through 360°.

Elevation: 766'+5" through 776'+5" Description Of Abnormality/Degradation: Bulge observed in shell plate at weld seam near 771 '-

0" and azimuth 269°. Welds and coating seemed intact.

Resolution: The bulge is located near the intersection of shell plates and the reinforcing collar for the Equipment Hatch. Visual examination estimates that the bulge is no more than approximately 1" in projection and can be attributed to fit-up of butt-welded plates at this location. Based on additional visual examinations, it is clear that this condition is not the result of service and has existed since original construction. No evidence of damage or degradation was 41

- Response to RAI EMCB-1 observed. The condition is deemed acceptable and has been noted for future reference.

This condition is unchanged and was seen again during 2EOC18 (2008). Acceptable 2EOC20.

Indication Number: 2-SCV0-0009.2000.1 Area/Component l.D.: 2-SCV0-0008 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 8/ 0° through 360°.

Elevation: 796'+5" through 806'+5" Description Of Abnormality/Degradation: Coatings damage, minor corrosion, and staining on stiffening ring web and weld between ring flange and web between 262° and 264°@ 806'+5".

Resolution: Acceptable during 2EOCl6. No change from previous inspection during 2EOC18 &

2EOC20 Indication Number: 2-SCV0-0009.2000.2 Area/Component l.D.: 2-SCV0-0008 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - Annulus Ring 8/ 0° through 360°.

Elevation: 796'+5" through 806'+5" Description Of Abnormality/Degradation: Topcoat delamination was noted on ring stiffener web

@ 260° and 806'+5". No base metal degradation was noted.

Resolution: Acceptable during 2EOC16. No change from previous inspection during 2EOC18 &

2EOC20. Coatings repairs are not recommended at this time.

Indication Number: 2-SCV0-0011.2011.1 Area/Component l.D.: 2-SCV0-0011 (Ref. Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 111 0° through 360°.

Elevation: 826'+5" through 835 '+9" Description Of Abnormality/Degradation: Various locations were observed where topcoat was nicked. Underlying coating was intact and no corrosion was noted. All conditions acceptable.

Resolution: Acceptable during 2EOC20 Indication Number: 2-SCV0-0012.2000.2 Area/Component l.D.: 2-SCV0-0012 (Ref-Drawings MC-ISIC-2042-004, -005, and-006 Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 12 and Dome Exterior/

0° through 360°.

Elevation: 835'+9" through 894'+3-11/32" Description Of Abnormality/Degradation: A number of locations were observed around the dome exterior at elevation 840' (approx.) where topcoating was observed to be flaking, blistering, and/or delaminating. At each of these locations, the underlying coatings were intact and no corrosion was noted. At some of these locations, condensation was observed under the delaminating coatings.

Resolution: Acceptable during 2EOC16. These conditions are unchanged from the previous inspection in 2000. Acceptable because no damage or degradation was observed to the base metal. Coatings maintenance work is planned per Work Order #98652815-03.

Indication Number: 2-SCV0-0012.2011.1 Area/Component l.D.: 2-SCV0-0012 (Ref Drawings MC-ISIC-2042-004, -005, and-006 Location/Azimuth: Containment Vessel Exterior Surface -Annulus Ring 12 and Dome Exterior/

0° through 360°.

Elevation: 835'+9" through 894'+3-11/32" Description Of Abnormality/Degradation: Above condition is improved; however, topcoat is nicked, chipped and flaking at various locations. No corrosion was found. All conditions acceptable.

Resolution: Acceptable 2EOC20.

42

- Response to RAI EMCB-1 Indication Number: 2-MBR0-001-2011.1 Area/Component l.D.: 2-MBR0-001 (Ref. Drawing MC-ISIC2-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface - approx. 270° - 180° Elevation: 725'+0" Description Of Abnormality/Degradation: Cracks found in seal 1"-6" long, 1/32" wide.

Unacceptable at time of inspection.

Resolution: WO# 1 g23248-02 has been written to correct this issue during 2EOC20. Acceptable 2EOC20. VT-1 was also performed at this moisture barrier (E04.11. 0001 ).

Indication Number: 2-MBR0-002-2011.1 Area/Component l.D.: 2-MBR0-002 (Ref. Drawing MC-ISIC2-2042-005)

Location/Azimuth: Containment Vessel Exterior Surface - consists of two vertical and one horizontal joints 240° - 270° Elevation: 725'+0"-742'+1", 742'+1" Description Of Abnormality/Degradation: Cracks found in seal 3" long by 1/8" wide. Also, vertical seal is cracked approx. 2' long. Unacceptable at time of inspection 2EOC20.

Resolution: W0#1 g23248-02 has been written to correct this issue during 2EOC20. Acceptable 2EOC20. VT-1 was also performed at this moisture barrier (E04.11.0002).

2EOC21 No recordable indications were identified during 2EOC21 2EOC22 Indication Number: 2-SCVl-0011.2014.1 Area/Component l.D.: 2-SCVl-0011 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 1/ 0° through goo.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: During 2EOC22 outage Moisture Barrier 2-MBRl-001 was partially removed due to access to the liner plate at Az. 3g degrees for ISi VT-1 exam (IWE Component I. D. E04.11.0008 found on drawing MC-ISIC2-2042-0020). Inspected again after MB replaced with no unacceptable findings. (Includes 2MBRl-001, 2MBRl-006)

Resolution: Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. VT-1 was performed at this location at liner plate (E04.11.0008) and found acceptable. See File No. MC-1131.00 for 2EOC22 ISi records. Acceptable 2EOC22.

Indication Number: 2SCVl-0012.2014.1 Area/Component l.D.: 2-SCVl-0012 (Ref. Drawing MC-ISIC-2042-002)

Location/Azimuth: Containment Vessel Interior Surface-Pipe Chase Quadrant 2/ go 0 through 180°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: During 2EOC22, Moisture Barrier 2-MBRl-002 was partially removed at az.g4 degrees and az.150 degrees for ISi VT-1 exams (IWE Component ID's are E04.11.0oog and E04.11.0010 and are shown on Dwg. MC-ISIC2-2042-0020).

Inspected after MB replaced with no unacceptable findings. (Includes 2-MBRl-002, 2-MBRl-007)

Resolution: Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. VT-1 was performed at this location at liner plate (E04.11.0oog, E04.11.0010) and found acceptable. See File No. MC-1131.00 for 2EOC22 ISi records. Acceptable 2EOC22.

43

- Response to RAI EMCB-1 Indication Number: 2SCVl-0013.2014.1 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 3/ 180° through 252°(approx.).

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: During 2EOC22, Moisture barrier 2-MRBl-003 was partially removed for ISi VT-1 exam at Az. 205 (IWE Component ID E04.11.0011 shown on Dwg. MC-ISIC2-2042-0020). Inspection also performed after MB replaced with no unacceptable findings (Includes 2-MBRl-003, 2-MBRl-008, 2MBRl-009)

Resolution: Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. VT-1 was performed at this location at liner plate (E04.11.000ll) and found acceptable. See File No. MC-1131.00 for 2EOC22 ISi records. Acceptable 2EOC22.

Indication Number: 2SCVl-0013.2014.2 Area/Component l.D.: 2-SCVl-0013 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 3/ 180° through 252°( approx.).

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: Boron/water identified in area under fuel transfer tube (Az. 240-270). This area is covered with boron on the SS insulation panels, on the floor, on the moisture barrier material (2MBRl-004), and on the ceiling coming out at the top edge of the SS panel. This is assumed to be attributed to the longstanding ' issue concerning the leak in the refueling canal. The ' SS insulation panel is bulging in one area and the moisture barrier is degrading.

Insulation panel removed and VT-1 performed per W02146423. SCV in excellent condition. UT performed on annulus side per W02096434 (Augmented Item No's: E.04.12-0365 through E.04-12.0408) with no measurable wall loss detected.

Resolution: PIP M-14-02857. VT-1 performed per WO 2146423 and found acceptable. See File No. MC-1131.00 for 2EOC22 ISi records documenting VT-1. Acceptable.

Indication Number: 2-SCVl-0014.2014.1 Area/Component l.D.: 2-SCVl-0014 (Ref. Drawing MC-ISIC-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe Chase Quadrant 4/ 270° through 360°.

Elevation: 728'+4" through 736'+3" Description Of Abnormality/Degradation: This zone also consists of Moisture Barriers 2-MBRl-005, 2-MBRl-0010, and 2-MBRl-0011. The area was inspected during 2EOC22 and all three Moisture Barriers found unacceptable. 2MBRl-0011 at Az. 280 degrees was partially removed for VT-1 exams (shown on drawing MC-ISIC2-2042-0020, IWE Component ID E04.11.0012).

Inspected again after MB replaced and acceptable.

Resolution: Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. VT -1 was performed at this location at liner plate (E04.11.00012) and found acceptable. See File No. MC-1131.00 for 2EOC22 ISi records. Acceptable 2EOC22.

Indication Number: 2-MBRl-001.2014.1 Area/Component l.D.: 2-MBRl-001 (Ref. Drawing MC-ISIC2-2042-002)

Location/Azimuth: Containment Vessel Interior Surface -Pipe chase 0°- 90° Elevation: 725'+0" Description Of Abnormality/Degradation: Reference zone 2-SCVl-0011. During 2EOC22 outage Moisture Barrier 2-MBRl-001 was partially removed due to access to the liner plate at Az. 39 degrees for ISi VT-1 exam (IWE Component l.D. E04.11.0008 found on drawing MC-ISIC2-2042-0020). MB replaced and acceptable 2EOC22 44

- Response to RAI EMCB-1 Resolution: Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. VT -1 was performed at this location at liner plate (E04.11.0008) and found acceptable. See File No. MC-1131.00 for 2EOC22 ISi records. Acceptable 2EOC22.

Indication Number: 2-MBRl-002.2014.1 Area/Component l.D.: 2-MBRl-002 (Ref. Drawing MC-ISIC2-2042-002)

Location/Azimuth: Containment Vessel Interior Surface -Pipe chase 90°-180°.

Elevation: 725'+0" Description Of Abnormality/Degradation: Reference zone 2-SCVl-0012. During 2EOC22, Moisture Barrier 2-MBRl-002 was partially removed at az.94 degrees and az. 150 degrees for ISi VT-1 exams (IWE Component !D's are E04.11.0009 and E04.11.0010 and are shown on Dwg. MC-ISIC2-2042-0020). MB replaced and acceptable 2EOC22.

Resolution: Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. VT -1 was performed at this location at liner plate (E04.11.0009, E04.11.0010) and found acceptable. See File No. MC-1131.00 for 2EOC22 ISi records.

Acceptable 2EOC22.

Indication Number: 2-MBRl-003.2014.1 Area/Component l.D.: 2-MBRl-003 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe chase approx. 186°-240°.

Elevation: 725'+0" Description Of Abnormality/Degradation: Reference zone 2-SCVl-0013. During 2EOC22, Moisture barrier 2-MRBl-003 was partially removed for ISi VT -1 exam at Az. 205 (IWE Component ID E04.11.0011 shown on Dwg. MC-ISIC2-2042-0020). MB replaced and acceptable 2EOC22.

Resolution: Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. VT -1 was performed at this location at liner plate (E04.11.00011) and found acceptable. See File No. MC-1131.00 for 2EOC22 ISi records. Acceptable 2EOC22.

Indication Number: 2-MBRl-004.2014.1 Area/Component l.D.: 2-MBRl-004 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface - Pipe chase approx. 240°- 270°.

Elevation: 725'+0" Description Of Abnormality/Degradation: (Ref. zone 2-SCVl-0013) Boron/water identified in area under fuel transfer tube (Az. 240-270). This area is covered with boron on the SS insulation panels, on the floor, on the moisture barrier material (2MBRl-004), and on the ceiling coming out at the top edge of the SS panel. This is assumed to be attributed to the longstanding issue concerning the leak in the refueling canal. The SS insulation panel is bulging in one area and the moisture barrier is degrading.

Insulation panel removed and VT-1 performed per W02146423 (Approx. Az. 255deg). UT performed on annulus side per W02096434 (Augmented Item No's: E04.12-0365 through E.04-12.0408) with no measurable wall loss detected.

Insulation and moisture barrier replaced per W02146423. VT-1 performed on moisture barrier per task 13. See File No. MC-1131.00 for 2EOC22 ISi records.

Resolution: PIP M-14-02857. Moisture barrier replaced and VT-1 per WO 2146423. See File No.

MC-1131.00 for 2EOC22 ISi records documenting VT-1 on moisture barrier.

Indication Number: 2-MBRl-011.2014.1 Area/Component l.D.: 2-MBRl-011 (Ref. Drawing MC-ISIC2-2042-003)

Location/Azimuth: Containment Vessel Interior Surface -Pipe chase 270°-0°.

Elevation: 728'+4" 45

- Response to RAI EMCB-1 Description Of Abnormality/Degradation: Reference zone 2SCVl-0014. During 2EOC22, Moisture barrier 2-MRBl-00011 was partially removed for ISi VT-1 exam at Az. 280 (IWE Component ID E04.11.0012 shown on Dwg. MC-ISIC2-2042-0020). MB replaced and acceptable 2EOC22.

Resolution: Insulation panels have been reinstalled and moisture barrier repaired, inspected and found acceptable. VT -I was performed at this location at liner plate (E04.11.00012) and found acceptable. See File No. MC-1131.00 for 2EOC22 ISi records. Acceptable 2EOC22.

Indication Number: 2-SCV0-0006.2014.1 Area/Component l.D.: 2-SCV0-0006 (Ref Drawings MC-ISIC-2042-004, -005)

Location/Azimuth: Containment Vessel Exterior Surface-Annulus Ring 6/ 0° through 360°.

Elevation: 776'+5" through 786'+5" Description Of Abnormality/Degradation: Significant paint chipping at liner plate approx. Az. 245 degrees, El. 767 and at weld ring approx. Az. 33 degrees, El. 767.

Resolution: Coatings maintenance performed per WO 02101537-04. Acceptable 2EOC22.

2EOC23 No recordable indications were identified during 2EOC23.

46

License Amendment Request Request for Additional Information ATTACHMENT 2 COMMITMENT

Commitment 1 - Commitment Page 1 of 1 Commitment Description Revise the Containment lnservice Inspection program to perform inspections of Leak-Chase Channels in accordance with the NRC's expectations stated in Information Notice 2014-07, as amplified in Regulatory Issue Summary 2016-07.

Due Date 9/30/16