ML11105A162

Surveillance Procedure 1301-9.1, Revision 22, RB Structural Integrity Tendon Surveillance

ML11105A162
Person / Time
Site:	Three Mile Island
Issue date:	04/15/2011
From:	Exelon Nuclear
To:	Office of Nuclear Reactor Regulation
References
TMI-11-055 1304-9.1, Rev 22
Download: ML11105A162 (119)

Text

Exelrn.Nuclear Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 Applicability/Scope USAGE LEVEL Effective Date TMI Division 1 01/06/11 This document is within QA plan scope XJ Yes 50.59 Applicable

[ Yes L.No No List of Effective Pages Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Revision 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 Page 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Revision 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 Page 81 82 83 84 85 86 87 Revision Page Revision 22 22 22 22 22 22 22 Topical Report 204 Revion 0 Attachment 8.4 Page 1 of 87 I Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 TABLE OF CONTENTS Section Paqe 1.0 PURPOSE 4

2.0 REFERENCES

4 3.0 PLANT STATUS 7 4.0 PREREQUISITES 7 5.0 LIMITS AND PRECAUTIONS 9

6.0 DESCRIPTION

AND LOCATION OF SYSTEM/ASSEMBLY 9 7.0 SPECIAL TOOLS, MATERIALS AND PERSONNEL QUALIFICATIONS 10 8.0 PROCEDURE 13 9.0 ACCEPTANCE CRITERIA 23 10.0 REPORTS 26 FIGURES 1. Tendon Detail -Typical Hoop/Dome 28 DATA SHEETS 1. Lift Off Force Measurement 29 2. As Found Lift Off Force Summary Results 30 3. Deleted 31 4. Elongation/Tendon Force Record 32 5. Average of the Normalized Lift-off Force 36 6. Retensioning Criteria Confirmation 37 7. Deleted 38 8. Diameter Check on Anchorage and Ram Adaptor (Optional) 39 9. Tendon Anchorage Area Moisture/Free Water Inspection 40 Topical Report 204 Revlon 0 Attachment 8.4 Page 2 of 87 2 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 TABLE OF CONTENTS (Cont'd)Section Paqe DATA SHEETS (Cont'd)10. Deleted 41 11. Tendon Surveillance Program 42 12. VT-1C / VT-3C Examiner Qualification 43 13. Review/Acceptance of Contractor Procedures 44 ENCLOSURES

1. Stressing Ram Calibration 45 2. Scope of Each Scheduled Surveillance 47 3. Collection/Lab Analysis of Filler Grease 52 4. Tendon Wire Removal/Physical Testing 58 5. (Deleted) 63 6. Anchorage Inspections 64 7. Additional Inspection Commitments Due to Previous Abnormalities 80 8. Safe Access Guidelines for Tendon Work During Power Operation 83 9. Master List of SGRP Affected Tendon and Surveillance Scope 84 Topical Report 204 Revion 0 Attachment 8.4 Page 3 of 87 3 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 1.0 PURPOSE 1.1 To provide instructions and acceptance criteria for RB tendon inspections as required by TMI-1 Technical Specification, Section 4.4.2. (CM-1, CM-2)1.2 To provide instructions and acceptance criteria for RB concrete inspections as required by TMI-1 Technical Specification, Section 4.4.2.1.3 Tendon surveillance is performed at intervals after initial containment Structural Integrity Test (SIT), as follows: a. One (1) year after SIT. Completed 1975.b.C.Three (3) years after SIT. Completed 1977.Five (5) years after SIT. Completed 1980.d. At successive 5-year intervals for remaining station life.NOTE 21 tendons were inspected at each of first three surveillance periods;see Table 1 of Enclosure

2. Prior to Cycle 7, and for subsequent periods, 12 tendons were selected in order to comply with Table IWL-2521-1.

Enclosure 2, Tables 1 and 2, and Enclosure 9, Tables 1 and 2, provides identification of tendons for each inspection period.Tendon selection is random and meets the requirements of NRC R.G.1.35 Rev. 3 and IWL 2520. In the event that a randomly selected tendon becomes inaccessible, it shall become exempt. Exempt tendons shall be inspected per IWL-2524 and IWL-2525.

Substitute tendons shall be selected per IWL-2521.1 (b).1.4 A special one-time event-related tendon surveillance is performed within one year (plus/minus 3 months per ASME Code Section XI, 2004 Edition Table IWL-2521-2 requirements) following the completion of the Reactor Building Containment Opening post-tensioning tendon system repair/replacement activities of ECR 06-00816 in support of the steam generator replacements scheduled in T1R18 2009 refueling outage (SGRP Containment Opening).

This special surveillance, which is limited in scope as defined in Section 8.9, satisfies an NRC recommendation from the NRC SER of Tech. Spec. Amendment

1. 259 approving deferral of the ILRT Performance until 2009. This surveillance also maintains compliance with ASME code section XI, 1992 edition with 1992 addenda.

2.0 REFERENCES

2.1 TMI Unit 1 Technical Specifications Section 4.4.2, "Structural Integrity" 2.2 SA-AA-0301, Exelon Nuclear Industrial Safety Pocket Guide 2.3 NO-AA-10, Quality Assurance Topical Report 2.4 RP-AA-403, Administration of the Radiation Work Permit Program Topical Report 204 Revion 0 Attachment 8.4 Page 4 of 87 4 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 2.5 1001J.1, Surveillance Testing Program 2.6 OP-AA-201-009, Control of Transient Combustible Material 2.7 MA-AA-716-100, Maintenance Alterations Process 2.8 MA-AA-716-025, Scaffold Installation Modification and Removal Request Process 2.9 Inryco, Reactor Building Tendons, VM-TM-2485 2.10 IEN 85-10 and Supplement 1 to same, entitled Post Tensioned Containment Tendon Anchorhead Failure; date February 6, 1985 2.11 SP-1101-23-007, Latest Revision, RB Tendon Surveillance Specification 2.12 TMI-1 Operating manuals and calibration charts for hydraulic stressing jack, pumps, and controls (supplied by vendor).2.13 Building Pre-Stressing System Tendon History, including Tendon Pulling, Buttonheading, and Stressing Records (cards).2.14 Reports from previous surveillance o 1974 Structural Integrity Test -GAI Report 1838* 1975 Tendon Surveillance

-1301-9.1 -GAI Report 1880 O 1977 Tendon Surveillance

-1301-9.1 -Report GQL 0204 o 1980 Tendon Surveillance

-1301-9.1 -TDR 229 0 1985 Tendon Surveillance

-1301-9.1 -Topical Report 025@ 1990 Tendon Surveillance

-1301-9.1 -Topical Report 069 O 1995 Tendon Surveillance

-1301-9.1 & Topical Report 093 o 1999 Tendon Surveillance

-1301-9.1 and Topical Report 136* 2004 Tendon Surveillance

-1301-9.1 and Topical Report 183 2009 Tendon Surveillance

-1301-9.1 and Topical Report 203 0 1977 RB Ring Girder Surveillance Three Years After S.I.T. -1303-8.2 2.15 1410-Y-83, RB Tendon End Cap Installation 2.16 1440-Y-23, RB Concrete Surface Crack Repairs 2.17 GAI DC-5390-225.01-SE and GAI DC-5390-225.02-SE, TMI-1 Reactor Building Post-Tensioning System Tendon Selection and Force vs. Time Curves Surveillances 6 through 10.Topical Report 204 Revion 0 Attachment 8.4 Page 5 of 87 5 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 2.18 Regulatory Guide 1.35, Rev. 3, Inservice Inspection of Ungrouted Tendons in Prestressed Concrete Containments.

2.19 G/C Calculation 1:01:01.01, "Structural Design Review Book 1" (Source Document)2.20 MA-AA-716-021, Rigging and Lifting Program 2.21 AD-AA-2001, Management and Oversight of Supplemental Workforce 2.22 10CFR 50.55a, Codes and Standards 2.23 EN-MA-501, Controlled Materials and Hazard Communication Program 2.24 ASME XI 1992 Edition through 1992 Addenda, Subsection IWL 2.25 ACI 201.1 R-92, "Guide for Making a Condition Survey of Concrete In Service" 2.26 ACI 349.3R-96, "Evaluation of Existing Nuclear Safety Related Concrete Structures" 2.27 TMI-1 C-1 101-153-E410-031, 032, and 033, Tendon Grease Void Calculations for Vertical, Horizontal, and Dome Tendons, respectively 2.28 TMI-1 Relief request Nos. RR-1 thru RR-7, Implementation of Subsections IWE and IWL, Letter No.5928-00-30179, Dated 4/27/00 2.29 Reactor Building Drawings TMI 1-0014/0015/0016, IWE Component Rollout-Outside Containment Concrete 2.30 ER-AA-330-006, Inservice Inspection and Testing of the Pre-stressed Concrete Containment Post Tensioning System 2.31 ER-AA-330-005, Visual Examination of Section XI Class CC Concrete Containment Structures 2.32 ER-AA-335-018, Detailed General VT-1 VT-1C VT-3 and VT-3C Visual Examination of ASME Class MC and CC Containment Surfaces and Components 2.33 ASME XI 2004 Edition (No Addenda)2.34 TMI UFSAR, current revision, Chapter 5 2.35 ECR 06-00816 2.36 1997 Universal Building Code (UBC 97)2.37 Commitments CM-1 Action Tracking Item AR 60357360357325.06, License Renewal Aging Management ASME Section Xl, Subsection IWL. (Step 1.1)CM-2 Action Tracking Item AR 60357360357338.04, License Renewal Aging Management Concrete Containment Tendon Prestress. (Step 1.1)Topical Report 204 Revion 0 Attachment 8.4 Page 6 of 87 6 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 3.0 PLANT STATUS 3.1 Operating or Shutdown.NOTE RB entry not necessary for tendon or concrete inspection.

3.2 For safety reasons, during plant operation no tendons with end caps located above steam safety valves are to be scheduled for surveillance.

4.0 PREREQUISITES

4.1 TENDON

SURVEILLANCE CONTRACTOR (CONTRACTOR) shall perform tendon surveillance in accordance with this procedure.

4.1.1 CONTRACTOR

shall have a quality assurance program in place which meets requirements of 10 CFR 50, Appendix B. This program and associated QA/ISI procedures shall have been submitted to TMI for review/approval prior to commencement of work.4.1.2 CONTRACTOR shall be on TMI Evaluated Vendors List (EVL).4.2 CONTRACTOR shall ensure TESTING LABORATORY equipped to perform following services shall be available for this surveillance:

4.2.1 Inspection

of removed wires for corrosion and other defects, and to perform required tensile tests. (See Enclosure 4.)4.2.2 Inspection of bulk filler grease samples and test for chlorides, sulfides, nitrates, base number and moisture content. (See Enclosure 3.)4.2.3 Calibration (traceable to NIST) of all hydraulic rams and gauges to be used.4.2.3.1 Stressing ram shall be calibrated per Enclosure 1 or CONTRACTOR may propose an alternative method. IF alternative used, CONTRACTOR should submit method for TMI-1 approval at least 30 days prior to start of tendon surveillance and procedure must then be included in CONTRACTOR report.4.2.3.2 Calibrate equipment used to measure tendon force within 3 months prior to the first tendon force measurement and within 3 months following the final tendon force measurement of the inspection period (IWL-2522(b)).

4.2.3.3 CONTRACTOR's QA program shall be imposed on Testing Laboratory.

4.3 CONTRACTOR

shall ensure all necessary inspection, detensioning/retensioning/greasing equipment is obtained and calibrated as specified herein.4.3.1 CONTRACTOR shall ensure detailed operating instructions and calibration documentation are supplied with rams.Topical Report 204 Revion 0 Attachment 8.4 Page 7 of 87 7 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 4.3.2 CONTRACTOR should submit calibration records to OWNER at least 15 days prior to start of tendon surveillance work and again within 15 days after demobilization from TMI-1. In no case shall work be allowed to start without TMI approval of calibration records.4.4 CONTRACTOR shall field verify proposed stressing rams are of proper configuration for TMI-1 dome tendons.4.5 CONTRACTOR must perform and document training of supervisory personnel with respect to this procedure prior to starting work.4.6 CONTRACTOR shall verify communication equipment (i.e., headsets, walkie talkies) for use in communication between work crews is operable.4.7 CONTRACTOR QC/QV personnel should report to Site Nuclear Oversight and to NDE Manager.4.8 IF lifting and handling equipment is to be used, CONTRACTOR shall ensure rigging and lifting devices have been inspected/approved for use per Reference 2.20.4.9 OWNER shall verify calibration documentation is acceptable for calibrated inspection and stressing equipment.

4.10 COGNIZANT WORK COORDINATOR (per Reference 2.21) or designated alternate shall notify on-shift TMI-1 Shift Management of work scope to be performed by CONTRACTOR at beginning of each work day of Tendon Surveillance or related activities.

4.11 IF working on or in radiologically controlled area, initiate RWP, per Reference 2.4.4.12 Install required scaffolding per Reference 2.8.4.13 Work Coordinator shall ensure ANII is notified prior to start of work.4.14 Work Coordinator shall ensure required indoctrination and training of CONTRACTOR per Reference 2.21 is conducted prior to start of work.4.15 CONTRACTOR Examiner shall use a visual VT-1NT-3NT-1CWT-3C examination procedure(s) qualified to meet the distance and illumination requirements contained in the Code (Ref. 2.32), or in any TMI relief requests from the Code requirements.

TMI and the ANII shall approve the qualification of the procedure.

4.16 COGNIZANT WORK COORDINATOR verify that Exelon has assigned a Responsible Engineer who meets the requirements identified in the 1992 Edition (with 1992 Addenda) of the ASME Boiler and Pressure Vessel Code,Section XI, Par. IWL-2320 and 2004 edition with no addenda.4.17 COGNIZANT WORK COORDINATOR verify that the experience and training of Contractor personnel performing visual examinations satisfy the requirements established by the Responsible Engineer.

Verify that these individuals are identified on Data Sheet 12 and that the appropriate approvals are obtained.4.18 Document review and acceptance of applicable contractor procedures on Data Sheet 13.Topical Report 204 Revlon 0 Attachment 8.4 Page 8 of 87 8 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance

[ 22 5.0 LIMITS AND PRECAUTIONS

5.1 Conduct

this procedure in accordance with Reference 2.5 and 2.7.5.1.1 IF AS FOUND conditions do not meet acceptance criteria, notify COGNIZANT MECHANICAL/STRUCTURAL ENGINEER as soon as practical and initiate Surveillance Deficiency Report (SDR) per Reference 2.5.5.2 Ensure all work is performed in accordance with Exelon Nuclear Industrial Safety Pocket Guide.5.2.1 CONTRACTOR shall report IMMEDIATELY to COGNIZANT WORK COORDINATOR, any working condition which appears to be unsafe.5.3 Some work may be near plant equipment required for safe shutdown or which may CAUSE shutdown if damaged. Use special care when suspending or moving stressing rams (jacks) or other heavy surveillance equipment.

5.3.1 TMI WORK COORDINATOR should work with CONTRACTOR FOREMAN to predict such hazards, and shall keep Operations Shift Management informed when working in such vital areas.5.3.2 Discuss all lifting arrangements inside plant buildings with COGNIZANT WORK COORDINATOR and obtain approval to ensure no damage to plant equipment.

5.3.3 Discuss

routes for transporting heavy equipment through plant buildings with COGNIZANT WORK COORDINATOR and obtain approval.5.4 Protect all roof surfaces from grease, oil, and debris, as spillage will result in roof degradation.

Use drop cloths or similar covering to prevent roof damage.5.5 Protect all built-up roof surfaces when erecting scaffolding, moving or storing heavy equipment, tool boxes, etc., by installing planking on roof surface.5.6 Minimize transient combustibles per Reference

2.6. Clearly

label all receptacles containing combustibles such as grease, solvent, used rags, etc.5.7 All chemicals utilized shall be controlled and evaluated per Reference 2.23.

6.0 DESCRIPTION

AND LOCATION OF SYSTEM/ASSEMBLY 6.1 RB tendons located within concrete shell of Reactor Building.

Access to tendons is from outside of RB.6.2 Layout of tendon system, location and identification can be found in VM-TM-2485. (Ref. 2.9)NOTE Testing of tendons around Main Steam Safety Valve exhaust area shall not be scheduled during plant operation due to personnel safety concerns. (Refer to Enclosure 8 Guidelines.)

Topical Report 204 Revion 0 Attachment 8.4 Page 9 of 87 9 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 7.0 SPECIAL TOOLS, MATERIALS AND PERSONNEL QUALIFICATIONS

7.1 General

NOTE CONTRACTOR must document any substitution of materials along with TMI-1 COGNIZANT MECHANICAL/STRUCTURAL ENGINEER approval.7.1.1 (2) -powered staging platforms consisting of roof trolley and working platform with hoisting equipment for jack handling.

Platforms will provide access to tendon ends being inspected and will support jacks during lift off measurement at each end.7.1.1.1 As temporary structures, these exterior platforms do not have specific design criteria for seismic and wind loading. 90 mph wind loading and seismic loading from UBC 97 shall be used in the design of these platforms.

7.1.2 Permanent

460 volt electrical outlets on top surface of ring girder for miscellaneous uses.7.1.3 115 volt outlets on working platform to power hydraulic stressing jack, pumps, and other electrically-powered equipment.

7.1.4 Electrical

cables or heavy duty extension cords as necessary for lights, hydraulic stressing jack pumps, and other miscellaneous power tools.7.1.5 Lift for two (2) men and hand tools.7.1.6 Portable work platforms for use inside buildings.

7.1.7 Communications

equipment for work crew communications.

7.1.8 Miscellaneous

hand tools.7.1.9 Solvent -for removing grease from around tendon anchorage and cleaning any stained concrete (CRC Natural Degreaser Aerosol or EPA 2000). Viscosity/Oil Industrial Solvent#16 may only be used if MSDS has been specifically approved for TMI use.7.1.10 Cleaning rags -approximately 3 bales.7.1.11 Ambient temperature monitoring equipment.

Topical Report 204 Revion 0 Attachment 8.4 Page 10 of 87 10 Number TMI- Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 7.2 Detensioning/Retensioning Equipment 7.2.1 (2) -tendon stressing rams (jacks) with 1600 KIPS or greater capacity.O Rams body configuration must not conflict with ring girder cut-outs and must have a stroke of at least 6 inches unless clearance and/or weight restrictions require the use of a ram with a shorter stroke.0 Ram heads (stressing ram adapters) must mate with Inland Ryerson 170 wire threaded anchor head.* Ram must have a longer than standard chair piece to fit TMI dome tendons.0 Ram chair shall have access openings at 1800 to permit installation and removal of feeler gauges at about 1800 apart under the stressing washer to obtain lift-off readings.NOTE Considerable critical path time was spent by CONTRACTOR during inspection number 2 and 3 to modify Ft. St. Vrain rams.To avoid personnel or equipment hazards, all equipment provided must be in good condition and designed as suitable for the purpose.7.2.2 Pumps, hoses, pressure gauges, controls, hydraulic fluid, etc. as required for use of stressing ram.7.2.3 Files for dressing threads on damaged anchorage heads.7.2.4 Shims -170 wire split type of various thicknesses, such as 1/8", 1/4", 1/2", 3/4", and 1", (5)sets or more of each thickness, as required (Inland-Ryerson part No. 101006-8, 101006-5, 6, 7, and 1 respectively).

O Specifications for replacement shims shall require certificate of compliance to ASTM A36 with S2 requirements (material to be silicon-killed fine grain practice) and certified mill test reports showing chemical and physical test results.7.2.5 Wooden or plastic paddles or spatulas to scoop out bulk filler grease from around anchorage assembly.7.3 Inspection Equipment NOTE Calibration Documentation required for all measuring equipment in this section.7.3.1 Feeler gages for crack measurements.

Required range of blade sizes is 0.005" to 0.010" by 0.001" increments.

Topical Report 204 Revion 0 Attachment 8.4 Page 11 of 87 11 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 7.3.2 Feeler gages for lift-off tests. Gage thickness is 0.030" and width 1/2".7.3.3 Optical comparators with 0.001" accuracy for measuring crack widths in concrete or buttonheads.

7.3.4 Grid paper for showing concrete crack patterns at vertical and hoop tendons.7.3.5 Magnifying glass, 5x (minimum)7.3.6 Wire cutters to cut 1/4 inch diameter, high strength (240,000 PSI) tendon wires.7.3.7 Extraction tool suitable for removing wires subject to tensile tests.7.3.8 Come-along hoist, or similar device, for extracting test wires.7.3.9 Six-foot diameter wire coiler to coil removed wire.7.3.10 GO/NO-GO thread plug gages for anchorage thread measurement.

7.3.11 Inside and outside micrometers for anchorage thread measurements.

7.3.12 Visual inspection equipment to perform VT-3C and VT-1C exams.7.4 Equipment for Greasing and End Cap Replacement

7.4.1 Grease

pump, transmission lines, various fittings mounted on storage tank equipped with heating system to heat grease to between 140OF and 200 0 F.0 Grease pump must be fitted with discharge relief valve set for maximum of 300 PSIG.7.4.2 (5) gallon drums of bulk filler grease, Visconorust 2090P4, by Viscosity Oil Co., or EQUAL as approved by the COGNIZANT MECHANICAL/STRUCTURAL ENGINEER.NOTE Grease quantity is estimate only. More or less may be required.0 Certified test report for grease is required indicating water soluble chloride, sulfide, nitrate, reserve alkalinity and moisture content.O Tests and acceptance limits shall be per Enclosure 3.7.4.3 (Approx. 6) gallon capacity drums for holding waste grease. Should be steam cleaned and air dried until no moisture or dirt is observed.0 To be clearly labeled on top and side: "WASTE TENDON GREASE ONLY".7.4.4 (Approximately

10) gallon capacity cans with bails.7.4.5 End Cap Consumables and Hardware per 1410-Y-83.

Topical Report 204 Revion 0 Attachment 8.4 Page 12 of 87 12 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 8.0 PROCEDURE NOTE The CONTRACTOR may use its own procedures to perform any or all steps of this surveillance.

The CONTRACTOR's procedures shall be reviewed and approved by the TMI COGNIZANT MECHANICAL/STRUCTURAL ENGINEER.

Data Sheet 13 shall document the review and acceptance of CONTRACTOR's procedures.

8.1 Equipment

Setup 8.1.1 Verify all applicable equipment listed in Section 7.0 available.

8.1.2 Verify

Operating manuals and calibration charts for hydraulic stressing jack, pumps, and controls available for use.0 Verify all personnel familiar with operating manuals of equipment to be used during inspection.

8.1.3 Verify

stressing jacks, pressure gages, optical comparators, and all other measuring devices have been calibrated and are in good working condition.

0 0 C Ensure calibration documentation signed, dated, and traceable to NIST.Verify stressing jack-pressure gauge system is capable of measuring tendon force within an accuracy of +/- 1.5% of the specified minimum ultimate strength of the tendon (+/- 30 kips or better). Refer to Enclosure 1 for additional calibration details.During inspection, check pressure gauge calibration daily against a master pressure gauge used only for this purpose. CONTRACTOR shall document this check.8.1.4 Verify TESTING LABORATORY prepared to receive wire and grease samples.8.1.5 Complete Data Sheets 1 and 2 for each tendon selected for inspection with: 0 0 0 0 tendon number, tendon end (shop/field), expected lift-off (predicted) force, and previous shim thickness.

NOTE Value for Predicted/Expected Lift-Off force is Base Value force obtained from applicable Force versus Time curve contained in DC-5390-225.01-SE or C-1 101-153-E410-046 (for SGRP affected tendons).Topical Report 204 Revion 0 Attachment 8.4 Page 13 of 87 13 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 8.1.6 Complete Rows 1 through 6, 8, 9, 10 and 12 of Data Sheet 4 for tendons to be detensioned.

NOTE Values to be entered in Rows 1 through 4 of Data Sheet 4 are given in Table 7 of VM-TM-2485.

8.1.7 Enter

Normalization Factor (NF) obtained from applicable force versus time curve contained in C-1 101-153-E410-046, on Data Sheet 5 for only selected tendons from Enclosure 2 (SGRP affected tendons are excluded).

8.1.8 Enter

predicted force, 0.95 predicted force, and 0.90 predicted force (as documented in C-1101-153-E410-046) for all sample tendons on Data Sheet 2.8.1.9 IF working in areas exposed to steam vents, verify plant is shut down. (Refer to Enclosure 8 area guidelines).

8.2 Hoop and Dome Tendon Inspection NOTE Once inspection of a given tendon has started, it should be completed as soon as possible to avoid unnecessary exposure of anchorage head.8.2.1 Protect roof surface as required prior to starting inspection.

8.2.2 Place

platforms in position at ends of tendon to be inspected.

8.2.3 IF tendon inspection is not completed during a work shift, protect anchorage area and grease cans from exposure to moisture, dirt and any other potentially damaging materials.

8.2.4 Tendons

shall be regreased (filled) within 30 days maximum after removal of an end cap.During the 2009 surveillance, extension of the 30 day maximum may be granted by the Responsible Engineer, as documented in this surveillance package.8.2.5 Corrosion Protection System a. Depressurize and remove end caps per 1410-Y-83 and PSC ISI Manual Procedure SQ6.1.b. Inspect for presence of free water in end cap and at anchorage area per this procedure and PSC ISI Manual Procedure SQ6.1.c. Enter inspection results on Data Sheet 9.Topical Report 204 Revion 0 Attachment 8.4 Page 14 of 87 14 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 CAUTION When removing grease to make visual inspection, use plastic or wood scrapers to avoid scratching/damage to end anchorage components and resultant corrosion.

I NOTE Free water shall not be included in the grease sample (IWL-2525.1

[a]).d. Take a representative one liter grease sample from each end anchorage of selected tendons.e. When present, free water sample shall be taken where water is present in quantities sufficient for lab analysis.

Record quantity of free water and request lab analysis for PH (IWL-2525.2[b]), f. Have grease sample tested per Enclosure 3.g. Verify sample meets acceptance criteria specified in Enclosure 3.h. Remove and collect remaining bulk filler from tendon anchorage area using wooden or plastic scoops and cleanup using solvent and rags. Collect in clean drums or other containers.

Record the total amount of bulk filler grease removed up until reinstallation of the end cap per the guidelines of 1410-Y-83.

Document on Data Sheet 11.8.2.6 Inspect Anchorage prior to Lift-Off test.a. Perform VT-1 inspection of tendon anchorage assemblies and associated hardware (bearing plates, stressing washers, stressing shims, buttonheads, and exposed wires) for signs of corrosion, cracks, missing wires, and broken wires. If broken or damaged wires are detected, the tendon shall be detensioned and the wire removed for testing as specified in Section 8.2.9.b. Perform VT-1C inspection of the concrete around tendon anchorage area, and for a distance of 2 feet extending outward from the bearing plate for crack width and general cracking pattern and for indications of abnormal material behavior.c. Complete data sheets in Enclosure 6.d. IF crack widths in concrete > 0.010" are identified, record and report immediately to COGNIZANT MECHANICAL/STRUCTURAL ENGINEER for evaluation and resolution.

Topical Report 204 Revion 0 Attachment 8.4 Page 15 of 87 15 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 e. IF crack widths > 0.05" are identified, record and report immediately to COGNIZANT MECHANICAL/STRUCTURAL ENGINEER for IMMEDIATE evaluation and investigation to determine amount of structural impairment upon containment structure and its continued integrity.

f. IF any condition not meeting acceptance criteria in Enclosure 6 is noted, document using sketches, photographs, etc. as applicable and report immediately to Cognizant Mechanical/Structural Engineer.g. CONTRACTOR shall ensure TMI-1 has evaluated any out-of-specification condition prior to making condition inaccessible.

A written evaluation will be provided to CONTRACTOR for his report.h. Cracks > 0.050" must be repaired after TMI-1 Engineering does an evaluation.

Repair will be per 1440-Y-23, "RB Concrete Surface Crack Repairs".8.2.7 Lift-Off Test a. Verify that anchor head treads are acceptable per TMI approved vendor procedure.

Completion of Data Sheet 8 is at the option of the Responsible Engineer.b. IF an UN-ACCEPTABLE anchor head thread condition exists, immediately notify COGNIZANT MECHANICAL/STRUCTURAL ENGINEER.c. Record calibration constants, ram area, ram identification number (I.D.) on Data Sheet 1.d. Measure and record thickness of shim stack on Data Sheet 1.e. Lubricate anchorage washer threads with a small amount of bulk filler grease as required.f. Thread ram onto anchorage stressing washer and bearing plate per ram operating instructions.

g. Ensure full thread engagement of the coupler to the stressing washer.h. Visually examine jack prior to each use for damage or deformation.

Topical Report 204 Revion 0 Attachment 8.4 Page 16 of 87 16 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 WARNING Jack is being operated up to 1,600 KIPS of force. Exercise extreme caution and strict adherence to all safety regulations as contained in operating manual. DO NOT stand behind hydraulic jack while stressing a tendon. Exercise extreme caution if fingers or hands are required near tendon anchorage head during testing.CAUTION DO NOT exceed 80% of ultimate tensile stress (equivalent to a jack force of 1592 KIPS (for a tendon with 169 effective wires) when performing lift-off test.i.j.k.m.n.0.IF lift-off is not achieved at jack force of 1592 KIPS, STOP, unload jack and immediately notify COGNIZANT MECHANICAL/STRUCTURAL ENGINEER.Observe the position of the anchorhead prior to applying pressure.

Count the anchorhead revolutions about the tendon axis, if any, during lift-off.

Record the number of revolutions on Data Sheet 1.Begin applying pressure to jack, and continue applying pressure until stressing washer (anchorhead) lifts off shim pack just enough to insert (2) -0.030" thick feeler gages, located approximately 180 degrees apart, between anchor head and shim pack or shim pack and bearing plate.Reduce jack pressure to achieve corresponding force reduction of approximately 100 KIPS. Obtain relationship between jack pressure and force from Calibration Equation recorded on Data Sheet 1.Slowly increase jack pressure until both feeler gages becomes loose enough to move. When this occurs, STOP increasing jack pressure and record jack pressure reading and corresponding force on Data Sheet 1.Complete Consecutive Three Trial Pressure Spread and Average on Data Sheet 1.Repeat lift-off measurement tests until 3 consecutive force measurements are all within 25 KIPS as recorded on Data Sheet 1.NOTE When tests are all within 25 KIPS of each other, official lift-off force for tendon end is the mean of the 3 consecutive force measurements, which is obtained from Data Sheet 1.p.q.r.CONTRACTOR shall record information on Data Sheet 1.Record gage pressure corresponding to official lift-off force on Data Sheet 1.Record official lift-off force on Data Sheet 1.Topical Report 204 Revion 0 Attachment 8.4 Page 17 of 87 17 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 S.Remove feeler gages and slowly decrease pressure on jack to allow stressing washer to reseat onto shims. No additional shims are to be added at this time.t. Repeat lift-off test at other end of tendon.U.V.W.Calculate average value of forces required to achieve lift-off of tendon, and enter on Data Sheet 2.Verify force meets Acceptance Criteria specified in Step 9.3.During lift-off testing, record reactor building internal temperature and the temperature of the concrete adjacent to the tendon anchorage on Data Sheet 1.X.y.Z.aa.Topical Report 204 Revion 0 Attachment 8.4 Page 18 of 87 Enter As-Found average lift-off force from Data Sheet 2 in Column (1) of Data Sheet 5 for non-SGRP tendons only.After lift-off tests are completed for all selected tendons in a group, e.g., all dome tendons, complete Data Sheet 5 for non-SGRP tendons. Fill out Data Sheet 6 after all re-tensioned tendon lift-off tests are complete.Verify average of all normalized lift-off forces in a group meets Acceptance Criteria of Step 9.3.For all non-SGRP tendons, the COGNIZANT MECHANICAL/STRUCTURAL ENGINEER shall review the results and trends of the measured prestress forces from consecutive surveillances for the control tendons and tendons as a group. Perform a statistical analysis of time dependent lift-off force trends and verify that the criteria of Step 9.3 are satisfied.

Plot lift-off for control tendons on force vs. time curves.18 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 8.2.8 Detension Tendon CAUTION 1. DO NOT exceed 70% of ultimate tensile stress (equivalent to a jack force of 1393 KIPS (for a tendon with 169 effective wires)(IWL-2523.3).

2. During plant operation, detension ONLY ONE tendon at a time.During the T1 R18 steam generator replacement in 2009, special limits on the number of tendons detensioned during power operation had been applied, consistent with the 50.59 evaluation limitations of SE-000153-021.

NOTE 1. To prevent holding jacks under pressure for periods of time, it is recommended that both ends of tendon be detensioned simultaneously.

2. Shims are paired and must be stacked in pairs.a.b.C.Increase pressure to jacks until shims can be removed.Remove split shims from shim stacks.Slowly decrease pressure (rate < 2000 PSIG/MIN) on jacks to completely detension tendon.NOTE DO NOT uncouple jacks until tendon is completely detensioned.

d.e.8.2.9 Remove a.b.C.Uncouple jack, while minimizing twisting of tendon to 1/2 of a revolution.

Record on Data Sheet 1 the number of revolutions of the anchorhead (if any)during uncoupling.

Wire and Test Perform VT-1 inspection of the detensioned tendon anchorage assembly for missing, broken, and/or damaged wires protruding from the anchorhead.

Record results on Data Sheets 1 and 2 in Enclosure 6 specifically noting any results observed after detensioning.

Remove a randomly selected wire that had been stressed prior to detensioning from each selected detensioned tendon listed in Enclosure 2, Table 2 and/or Enclosure 9, Table 2.Topical Report 204 Revion 0 Attachment 8.4 Page 19 of 87 19 Number TMI -Unit 1 Surveillance Procedure 1301)-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 d. Also remove all broken or damaged wires (if any). Remove enough of each broken or damaged wire to allow tensile testing and visual examination to evaluate the cause of breakage or damage.e. Follow procedure in Enclosure 4 and PSC ISI Manual Procedure SQ10.3 for testing and examining all removed wires and completing Data Sheets.8.2.10 Retension Tendon CAUTION DO NOT exceed 80% of ultimate tensile stress (equivalent to a jack force of 1593 KIPS (for a tendon with 169 effective wires).a. Retension both ends of a tendon approximately simultaneously, such that force difference between ends does not exceed 250 KIPS at any time during retensioning.

b. Prior to starting retensioning, enter header information for tendon to be retensioned on Data Sheet 1, and calculate P'max and P'min and enter on Data Sheet 1. Complete Columns 2 through 5 on Data Sheet 6 by recording the following information.

(1) Number of effective wires.(2) 70% of tendon ultimate strength (8.24 kip x Number of Effective Wires).(3) Predicted Base Force from C-1 101-153-E410-046.

(4) Target lock-off force; [70% of ultimate strength + Predicted Base Force]-2.c. Verify Rows 1, 2, 6 through 9 and 12 of Data Sheet 4 have been completed.

d. At each tendon end, stress tendon to gauge pressure recorded in Row 2 on Data Sheet 4. Record actual pressure in Row 3.e. Record ram extension in Row 5 of Data Sheet 4.f. Stress tendon to gauge pressure recorded in Row 9 of Data Sheet 4. Record actual pressure in Row 10.g. Record ram extension in Row 11 of Data Sheet 4.h. Stress tendon to gauge pressure recorded in Row 12 of Data Sheet 4.Record actual pressure in Row 13.Record ram extension in Row 14.Topical Report 204 Revlon 0 Attachment 8.4 Page 20 of 87 20 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 j. Stress tendon to gauge pressure recorded in Row 7 of Data Sheet 4. Record actual pressure in Row 15.k. Record ram extension in Row 17.1. Record tendon force at overstress in Row 16.m. Reduce ram pressure to the lesser of the following and insert shims to fill gap (final gap will be less than the thickness of the smallest shim).(1) 200 psi above (P'min + P'max)/2 from data Sheet 1.(2) P'max force listed on Data Sheet 1.n. Perform lift-off to determine actual tendon force and corresponding gauge pressure.o. Record final lift-off (Lock-Off) force in Column 6 of Data Sheet 6.p. Verify that final lock-off force is between the Predicted Base Force and 70%of ultimate tendon strength and document verification in Col. (7) of Data Sheet 6.q. Complete Data Sheet 6 for all detensioned tendons.r. Record final gauge pressure, force, and shim stack thickness on Data Sheet 1.s. For comparison of tendon elongations occurring at Original Stressing and Retensioning, complete Data Sheet 4.t. Verify fractional difference in Row 10 on Part 4-of Data Sheet 4 is within +/- 0.1.Indicate whether this criterion has been met on Part 4 of Data Sheet 4.u. IF NOT within +/- 0.1, immediately notify COGNIZANT MECHANICAL/STRUCTURAL ENGINEER and investigate to determine if cause is wire failure or slip of wire in anchorage(s).

Difference of more than 0.1 requires identification in the ISI Summary Report per IWA-6000 (1 0CFR50.55a).

v. After all lift-off tests on re-tensioned tendons are complete, fill out Data Sheet 6.Topical Report 204 Revion 0 Attachment 8.4 Page 21 of 87 21 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 8.2.11 Restore Tendon Force NOTE Following steps apply to any tendon which has lift-off force below its specified 90% Base Value, and has not been required to be detensioned.

a. Completely de-tension the tendon and follow the instructions in Par. 8.2.10.b. Evaluate cause of low force.c. Retension tendon per the instructions in Para. 8.2.10.8.2.12 For each tendon, measure the quantity of grease (corrosion protection medium, CPM)replaced and document on Data Sheet 11. Reinstall grease can and regrease per 1410-Y-83.

Vertical Tendon Inspection

a. Follow same steps for dome and hoop tendons (Section 8.1 and 8.2) with following exceptions:

8.3 0 Working platforms remain stationary during test of one tendon.0 Access to opposite end of tendon is from tendon gallery.O Entire column of grease may drain from tendon conduit. Ensure sufficient receptacles available to contain up to 120 gallons of drained grease from each tendon (C-1101-153

-E410-031).

o Lift-off, detensioning, and retensioning of vertical tendon will be performed from one end only; i.e., from top of ring girder.9 Data to be filled in on Data Sheets 1 and 2.8.4 Concrete Cracks at Dome Tendon Anchorage Area a. Visually inspect the 9 dome tendon anchorage areas per Enclosure 6.b. Complete Data Sheets 8 and 9 of Enclosure

6.8.5 Perform

VT-3C examination of accessible exterior of the containment and document results per instructions in Enclosure 6.NOTE This examination is to include the concrete repair from the SGRP Containment Opening.8.6 Perform applicable examinations and tests listed in Enclosure 7 and document results.Topical Report 204 Revion 0 Attachment 8.4 Page 22 of 87 22 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 8.7 Grease Can Seal Repairs NOTE To maintain tendon grease seals, scope of work includes replacement of leaky seals, even on tendons which are not part of surveillance scope listed in Table 1 and Table 2 of Enclosure 2 and Table 1 and Table 2 of Enclosure 9 (grease seal repairs will not be scoped for the 2010 Augmented Surveillance).

8.7.1 Perform

repairs per 1410-Y-83 (Reference 2.15).8.8 Recalibrate all calibrated equipment at end of tendon surveillance.

8.9 Augmented

inspection for SGRP Containment Opening NOTE This is a one-time augmented inspection following the repair and restoration of the SGRP Containment Opening. The scope of this inspection is limited to the concrete patch, affected tendons and their anchorage areas per Enclosure

6. This augmented inspection does not include 100% examination of accessible concrete nor the full tendon sample of a regularly scheduled inspection.

8.9.1 Perform

this one-time inspection 1 year (+/- 3 months) following repair and the SGRP Containment Opening.restoration of 8.9.2 Augmented tendon inspection for SGRP Containment Opening 8.9.2.1 Follow same steps for hoop and vertical tendons (sections 8.1, 8.2 and 8.3).8.9.2.2 Inspect SGRP Containment Opening tendons per Enclosure 9.8.9.3 Augmented concrete inspection 8.9.3.1 Perform VT-3C examination of SGRP Containment Opening concrete repair and concrete around tendon anchorage areas of all tendons listed in Enclosure 9.8.9.3.2 Document results per Enclosure

6.9.0 ACCEPTANCE

CRITERIA 9.1 Tendon Anchorage and concrete inspection meets criteria specified by Enclosure

6.9.2. Tendon

Wire Physical Condition meets criteria specified by Enclosure 4.Topical Report 204 Revion 0 Attachment 8.4 Page 23 of 87 23 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 9.3 Tendon Prestress Force Confirmation Test (IWL-3221.1) 9.3.1 The average of all normalized tendon lift-off forces, including those measured in 9.3.2.2, for each type of tendon (original vertical, dome, and hoop) is equal to or greater than the required minimum average tendon force at the anchorage for that type of tendon.NOTE SGRP affected tendon forces are not required to be included in the averages nor averaged separately.

See Tech Eval 10408951-02.

NOTE Required minimum average tendon forces are: 1033 Kips for Vertical Tendons 1064 Kips for Dome Tendons 1108 Kips for Hoop Tendons 9.3.2 The measured force in each individual tendon is not less than 95% of the Predicted Base Value (Predicted Force) obtained from C-1 101-153-E410-046, unless the following conditions are satisfied:

9.3.2.1 The measured force in not more than one tendon is between 90% and 95% of the predicted force;NOTE Tendons H46-24 and V-31 were de-tensioned during Surveillances 2 and 3, respectively.

Also, the V-30 liftoff force was measured during Surveillance 4 and its anchorage force may have been affected during by this activity.

To ensure that tendons adjacent to specified sample tendons are also in an undisturbed condition, the following are designated as the adjacent tendons to examine should the need for such examination arise.V-29 is the designated adjacent tendon located counter-clockwise from specified sample tendon V-32.H46-23 is the designated adjacent tendon located below specified sample tendon H46-25.Also, the Responsible Engineer may designate alternatives to the above or to other adjacent tendons as necessary to satisfy accessibility, safety and other significant concerns.9.3.2.2 The measured forces in two tendons located adjacent to the tendon in 9.3.2.1 are not less than 95% of the predicted forces (Predicted Base Values); and Topical Report 204 Revion 0 Attachment 8.4 Page 24 of 87 24 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 9.3.2.3 The measured forces in all the remaining sample tendons are not less than 95% of the predicted force.9.3.3 IF the requirements of 9.3.1 and 9.3.2 are not met, extent of investigation into cause, including additional lift-off testing to determine cause and extent of such occurrence, shall be determined by COGNIZANT MECHANICAL/STRUCTURAL ENGINEER.9.3.4 IF average value of selected tendon end forces required for lift-off falls below 90% Base Value, evaluate condition to determine extent of cause of the low lift-off force and to specify additional examinations deemed necessary to demonstrate acceptability of the pre-stressing system.9.3.5 IF minimum group average normalized tendon force is NOT MET on Data Sheet 5, an additional sample of 4% with a minimum of 4 and a maximum of 10, of same group of tendons, should be inspected. (TMI-1 Guidance/not Reg. Guide).9.3.6 IF results of the anchorage force statistical analysis show a significant probability that the mean for any tendon group will fall below the minimum required value prior to the late finish date of next scheduled surveillance, additional lift-off testing to determine the cause and extent of such occurrence shall be done as directed by the COGNIZANT MECHANICAL/STRUCTURAL ENGINEER.

This evaluation shall be reported per Engineering Evaluation Report prescribed in IWL-3300.9.3.7 IF total population of each group of sampled tendons meets criteria, structural integrity of containment shall be considered acceptable.

9.3.8 IF structural integrity of containment has not been demonstrated to be acceptable within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, then be in at least HOT STANDBY within next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.9.4 Corrosion Protection System Inspection.

9.4.1 Grease

sample contaminant levels and base numbers meet the criteria specified in Enclosure 3.9.4.2 Water in grease sample shall be that ratio of water to dry weight does not exceed 10%.9.4.3 The acceptance criteria limit is that the absolute difference between the amount of grease (CPM) removed from a tendon and the amount replaced shall not exceed 10% of the net duct volume (volume of end cap, trumpet, and duct less that of the tendon, anchor heads, and shims). Engineering evaluation is required if the 10% criteria is exceeded.9.4.4 Presence of free water.a. An evaluation per CC-AA-309-101 shall be performed per UFSAR 5.7.5.2.5 if found.9.4.5 Grease leakage detected during general examination of the containment exterior surface has been evaluated for housekeeping, fire safety and personnel safety concerns.Topical Report 204 Revion 0 Attachment 8.4 Page 25 of 87 25 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 1 22 a. An evaluation per CC-AA-309-1 01 shall be performed per U FSAR 5.7.5.2.5 if found.9.5 Post Test Calibration 9.5.1 The post test calibration shall not differ from the pre-test calibration by more than the specified accuracy tolerance of hydraulic rams and gauges (IWL 2522[b]).9.6 All Data Sheets complete and signed off.9.7 IF the Acceptance Criteria of 9.1, 9.2, 9.3, 9.4 and 9.5 are not met, it shall be considered as a possible abnormal degradation of the containment structure.

The condition shall be immediately brought to the attention of, and evaluated by the COGNIZANT MECHANICAL/STRUCTURAL ENGINEER, a Surveillance Deficiency Report (SDR) generated, and addressed in the tendon surveillance report submitted to the NRC.10.0 REPORTS 10.1 CONTRACTOR should prepare written report of results and conclusions for inspection period for TMI within 30 days of test and inspection completion.

10.1.1 CONTRACTOR shall include pre and post-test calibration records in CONTRACTOR'S final report.10.2 TMI shall ensure Enclosure 7 is kept updated with extra commitments for inspections as a result of abnormal conditions in each inspection period.10.3 TMI shall submit a report on tendon surveillance to NRC within 3 months following completion per Tech Specs.NOTE In addition to the 3 month report submitted to the NRC, tendon surveillance engineer should provide data listed below to the ISI engineer for the 90 day ISI Summary Report.10.4 TMI shall submit an ISI Summary Report per IWA-6000.

It should include the following conditions, if found (10CFR50.55a).

10.4.1 Sampled sheathing grease contains chemically combined water exceeding 10% by weight or the presence of free water.10.4.2 The absolute difference between amount of grease removed and amount replaced exceeds 10% of the tendon net duct volume, i.e., 12 gallons for vertical tendons, 11 gallons for hoop tendons, and between 7 gallons and 9 gallons for dome tendons (dependent on length), (Source: C-1101-153-E410-031, 032, and 033, respectively).

10.4.3 Grease leakage is detected during general visual examination of containment surface.10.4.4 When conditions in accessible areas could indicate the present of, or the result of degradation in inaccessible areas, those inaccessible areas shall be evaluated for --Topical Report 204 Revion 0 Attachment 8.4 Page 26 of 87 26 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 10.4.4.1 description of the type and extent of degradation, and the conditions that led to the degradation 10.4.4.2 an evaluation of each area and results of same 10.4.4.3 a description of necessary corrective actions.10.4.5 When the elongation corresponding to a specific load (adjusted for effective wires or strands) during retensioning of tendons differs by more than 10 percent from that recorded during the last measurement Topical Report 204 Revion 0 Attachment 8.4 Page 27 of 87 27 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 FIGURE 1 Page 1 of 1 Tendon Details Typical Hoop/Dome Bearing Plate 20-1/2" x 3-3/4" x 20-1/2" Grease Can Holding Ring Wire Washer /(2-Piece Shop Washer Shown)Grease Plug'i-" NPT Grease Can Grease Can /Hold Down Dolts/Nuts and Grease Seals-Prestressing Tendon Gasket (Closed cell Neoprene Sponge)I I" -8 UNC2B1/4" Dia. Wires 2" -Deep with Buttonheads NOTE Vertical tendons have a different type of grease can.Topical Report 204 Revion 0 Attachment 8.4 Page 28 of 87 28 DATA SHEET I Lift-Off Force Measurement Predicted Force (Fp) _ kip 1301-9.1 Revision 22 Page 1 of 1 Surveillance No.Tendon ID Tendon End (Circle One): Shop / Field Phase (Circle One): As-found / Re-Tension Ram ID Ram Calibration Constants:

A =Date Temp: RB Interior _F / Concrete Surface __OF No. Effective Wires, Nw_Shim Stack Ht. in.CAUTION DO NOT EXCEEP A RAM PRESSURE OF [(1,592 x Nw / 169) -k] x 1,000 / A = psig Trial 1 2 3 4 5 6 7 8 9 10 Lift-Off Pressure, psig Consecutive Three Trial Pressure Spread psi N/A N/A Consecutive Three Trial Pressure Average p 1 psig1,2 N/A N/A Stressing Washer Rotation At Feeler Gage Insertion At Trial 1 At Trial 2 At Trial 3 At Trial 4 At Trial 5 At Trial 6 At Trial 7 Sum Rotation, Turns CW or CCW For Re-tension Only, List Nominal Thickness of Each Shim Starting at Shim in Contact with Anchorhead in.End Lift-Off Force = (A x P' / 1,000) = k = kip 1 N/A if 3 trial pressure spread > 25,000 / A = _psi 2 Re-tension P range: P'min = (FP -k) x 1,000 / A = __ psig < P' < P' max = [(1,394 x Nw / 169) -k] x 1,000 / A = _ psig For Re-Tension Only: Fp < End Lift-Off Force < 1394 x Nw 1169; < <Yes / No (Circle One)Notes: Recorded by: Signature Date / Reviewed by: Signature Date QV Topical Report 204 Revion 0 Attachment 8.4 Page 29 of 87 29 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 DATA SHEET 2 Page 1 of 1 As-Found Lift-Off Force Summary Results As-Found Lift Off Force, kip Predicted F > Facc F > Fijim Tendon Average Force, Fp- Facc = Circle Firim = Circle Group ID Shop End Field End Force, F kip 0.95 Fp Yes or No 0.90 F, Yes or No Yes /No Yes / No Yes /No Yes / No Yes /No Yes / No Yes /No Yes / No Yes /No Yes / No Hoop Yes /No Yes / No Yes /No Yes / No Yes /No Yes / No Yes /No Yes / No Yes /No Yes / No Yes /No Yes / No N/A Yes /No Yes / No N/A Yes /No Yes / No N/A Yes /No Yes / No N/A Yes / No Yes / No Vertical N/A Yes / No Yes / No N/A Yes / No Yes / No N/A Yes / No Yes / No N/A Yes / No Yes / No Yes / No Yes / No Yes / No Yes /No Yes / No Yes /No Yes / No Yes /No Dome Yes /No Yes /No Yes /No Yes /No Yes /No Yes /No Yes /No Yes /No Notes: (Initial & Date)Topical Report 204 Revion 0 Attachment 8.4 Page 30 of 87 30 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 DATA SHEET 3 DELETED Topical Report 204 Revion 0 Attachment 8.4 Page 31 of 87 31 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 DATA SHEET 4 Page 1 of 4 Elongation

/ Tendon Force Record Re-Tensioning Data for De-Tensioned Tendons TendonlD Surveillance No.Part I Original Stressing Data NOTE PTF removes tendon slack and is the starting point for elongation measurements.

OSF force is 80% (may be less) of tendon ultimate strength.

The tendon is loaded to OSF in order to provide the required force distribution.

It is also the force at which final elongation is measured.

PTF force / elongation, OSF force / elongation and number of effective wires are documented in construction records.Table I Row, R Parameter Value 1 Shop End PTF Force kip 2 Field end PTF force kip 3 Mean PTF Force = (R1 + R2) / 2 kip 4 Shop End PTF Reference Distance in.5 Field End PTF Reference Distance in.6 Net PTF Reference Distance = R4 + R5 in.7 Shop End OSF Force kip 8 Field end OSF force kip 9 Mean OSF Force = (R7 + R8) / 2 kip 10 Shop End OSF Reference Distance in.11 Field End OSF Reference Distance in.12 Net OSF Reference Distance = R10 + Ri 1 in.13 Differential Force = R9 -R3 kip 14 Differential Elongation

= R12 -R6 in.15 Number of Effective Wires 16 Elongation Rate = R14x R15/R13 Topical Report 204 Revion 0 Attachment 8.4 Page 32 of 87 32 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 DATA SHEET 4 Elongation

/ Tendon Force Record Re-Tensioning Data for De-Tensioned Tendons Page 2 of 4 TendonlD Surveillance No.Part 2 Shop End Re-Tensioning Data Ram Area, A in2 Ram ID Ram k kip NOTE The number of effective wires entered in R1 must be the same as the number entered for the field end in Table 3. Also, the calculations identified in Rows 4, 16, 18 & 19 (shaded) may be done after stressing work at both ends of the tendon is complete.Table 2 Row, R Parameter Value Signature Date 1 Number of Effective Wires 2 PTF Target Pressure psi 3 PTF Actual Pressure psi 4 PTF Actual Force = R3 x Ni 000 k kip 5 PTF Reference Distance in.6 OSF Maximum Force = R1 x 9.4 kip 7 OSF Max. Pressure = 1000 (R6 + k) / A psi 8 1/3 Pressure Interval = R7 / 3 -330 psi 9 Target 1/3 Pressure = 1,000 + R8 psi 10 Actual 1/3 Pressure psi 11 1/3 Reference Distance in.12 Target 2/3 Pressure = R9 + R8 psi 13 Actual 2/3 Pressure psi 14 2/3 Reference Distance in.15 OSF Actual Pressure psi.16 OSF Actual,.F6rce=

R15 x A/1000-k;

.kip 17 OSF Reference Distance in.18 Differential Force = R16 -R4 kip 19 Differential Elongation

= R17-R5 in.Topical Report 204 Revion 0 Attachment 8.4 Page 33 of 87 33 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 TendonlD DATA SHEET 4 Elongation

/ Tendon Force Record Re-Tensioning Data for De-Tensioned Tendons Sur Part 3 Field End Re-Tensioning Data veillance No.Page 3 of 4 Ram ID Ram Area, A in2 Ram k kip NOTE The number of effective wires entered in R1 must be the same as the number entered for the shop end in Table 2. Also, the calculations identified in Rows 4, 16, 18 & 19 (shaded) may be done after stressing work at both ends of the tendon is complete.Table 3 Row, R Parameter Value Signature Date 1 Number of Effective Wires 2 PTF Target Pressure psi 3 PTF Actual Pressure psi 4 ~~ :,TF Acual Force = R3 xA/1 00 --k< kX: Ip<;% _5 PTF Reference Distance in.6 OSF Maximum Force = R1 x 9.4 kip 7 OSF Max. Pressure = 1000 (R6 + k)/A psi 8 1/3 Pressure Interval = R7 / 3 -330 psi 9 Target 1/3 Pressure = 1,000 + R8 psi 10 Actual 1/3 Pressure psi 11 1/3 Reference Distance in.12 Target 2/3 Pressure = R9 + R8 psi 13 Actual 2/3 Pressure psi 14 2/3 Reference Distance in.15 OSF Actual Pressure psi 17 OSF Reference Distance in.1~8. j~' Differen~tial Force .= R16--44 ~1/2f.kip _______ __D9 ifferential Elongatibn R17-Tiin.

17 Topical Report 204 Revion 0 Attachment 8.4 Page 34 of 87 34 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 DATA SHEET 4 Page 4 of 4 Elongation

/ Tendon Force Record Re-Tensioning Data for De-Tensioned Tendons Surveillance No.TendonlD Part 4 Elongation Comparison Table 4 Row, R Parameter Value 1 Shop End Differential Force from Table 2, R18 kip 2 Field End Differential Force from Table 3, R18 kip 3 Average Differential Force = (RI + R2) / 2* kip 4 Shop End Differential Elongation from Table 2, R19 in.5 Field End Differential Elongation from Table 3, R19 in.6 Total Elongation

= R4 + R5** in.7 Number of Effective Wires from Table 2, R1 8 Re-Tensioning Elongation Rate- R6 x R7 / R3 9 Original Elongation Rate from Table 1, R16 10 Fractional Difference in Rates = (R8 -R9) / R9 Absolute value of the above Fractional Difference in Rates 0.1* For vertical tendon = R1** For vertical tendon = R4 Yes No Signature:

Date: Topical Report 204 Revion 0 Attachment 8.4 Page 35 of 87 35 1301-9.1 Revision 22 Page 1 of 1 DATA SHEET 5 Average of the Normalized Lift Off Force (1)Lift Off Force (2)Normalizing Factor (NF)(3)Normalized Lift Off (1) + (2)(4)Acceptance Yes No TendonlD Dome Tendons 1.2.3.4.5.6.(Average Equal to or greater than 1064 kips)Total Average Vertical Tendons 1.2.3.4.5.6.7.(Average Equal to or greater than 1033 kips)Total Average Hoop Tendons 1.2.3.4.5.6.7.8.9.10.(Average Equal to or greater than 1108 kips)Total Average Cognizant Mech/Struct Engineer Reviewed By: Date: Date: Performed By: Topical Report 204 Revion 0 Attachment 8.4 Page 36 of 87 36 1301-9.1 Revision 22 Page 1 of 1 DATA SHEET 6 Retensioning Criteria Confirmation (1)TENDON ID (2)NUMBER OF EFFECTIVE WIRES (3)70 % OF ULTIMATE STRENGTH[8.24 X (2)](4)PREDICTED BASE FORCE 1 (5)(6)(7)AVERAGE LOCK-OFF (4)<(6)<(3)

[(3)+(4)2 FORCE Yes / No DOME SHOP END FIELD END SHOP END FIELD END VERTICAL SHOP END SHOP END SHOP END HOOP TENDONS SHOP END FIELD END SHOP END FIELD END SHOP END FIELD END Cognizant Mech/Struct Engineer Reviewed By: Date: Date: Performed By: 1 Predicted Base Force from C-1101-153-E410-046.

Topical Report 204 Revion 0 Attachment 8.4 Page 37 of 87 37 DATA SHEET 7 Tendon Force Measurement Record 1301-9.1 Revision 22 Page 1 of 1 DELETED Topical Report 204 Revion 0 Attachment 8.4 Page 38 of 87 38 1301-9.1 Revision 22 Page 1 of 1 DATA SHEET 8 Minor, Major, and Pitch Diameter Checks -Anchorage and Ram Adapter MAJOR O.0. AND MINOR I.D. DIAMETER CHECK MINOR O.D. AND MAJOR I.D. DIAMETER CHECK I PITCH DIAMETER CHECK TOTAL IDENTITY OF I..ANCHORAGE-OR ADAPTOR DIA.3RD 6TH 9TH AVERAGE THREAD THIREAD I THREAD DIA.3RD 9TH JAVERAGE THREAD THREAD I WA.PITCH DIA.INSP.Y VERIF.BY CONTR. COGNIZANT FOREMAN Ov INSP.C/A NC/A NA C/A NC/A NA C/A NC/A NA C/A NC/A NA 0.0.I.D.OD.I.D.O.D.I.D.O.D, J.D.O____ .0.O.D.O,____ D.I.D.O.D.O.D, .I.D. i_____CALIBRATION CONTROLS:

OD. MICROMETER NO.-_--- CAL.DATE-I.D. MICROMETER NO. -CAL.DATE -MICROMETER NO. CAL.DATE -SHIM SIZE NO. .CAL.DATE TIRE SIZE _ NO.. CAL.DATE WIRE SIZE _ NO.- CAL.DATE GO-GAUGE NO. -CAL.DATE NO GO-GAUGE NO. ..CAL.DATE NOTE: NOT ACCEPTABLE (NA)NOTE: Completion of this Data Sheet Is at the option of the Responsible Engineer.RAM ADAPTOR (.D0.)ANCHORAGE (O.D.).22 MAX S 9.225 MII9u ,2IM MO MAX 9112 MIN 9.333MAX,93O NNPITCH 9,33 MA 9.17 MIN C9.76 MAX- 9,242 MIN 9.428 MAX. 9.395 MIN MAJOR 9-42---J-L I-9m.2 MMAO 9-375 MAX- 9-363 MIN CONFORMING/ACCEPTABLE NONFORMING/ACCEPTABLE CONFORMING/ACCEPTACLE (C/A) (NC/A) (C/A)COGNIZANT MECH/8TRUCT ENGINEER REVIEWED BY: DATE: Topical Report 204 Revion 0 Attachment 8.4 Page 39 of 87 39 DATA SHEET 9 Tendon Anchorage Area Moisture/Free Water Inspection 1301-9.1 Revision 22 Page 1 of 1 Inspection Period 1.2.3.4.5.6.7.8.9.10.11.12.Tendon No.Tendon No.Location Moisture/Water (Yes or No)Moisture/Water (Yes or No)Description of Free Moisture/Water-Quantity, Location Date Insp.Inspect. By (Initials)

Inspect. By (initials)

NOTE: Location: Hoop Tendons: Vertical Tendons: Dome Tendons: 1 to 6 -Buttress number at end of tendon T or B -Top or Bottom 1 to 6 -Number of buttress nearest to end of tendon Cognizant QV Inspector Verification By: Cognizant Mech/Struct Engineer Review By: Date: Date: Topical Report 204 Revion 0 Attachment 8.4 Page 40 of 87 40 DATA SHEET 10 Tendon Anchor Head Rotation Inspection 1301-9.1 Revision 22 Page 1 of 1 DELETED Topical Report 204 Revion 0 Attachment 8.4 Page 41 of 87 41 1301-9.1 Revision 22 Page 1 of 1 DATA SHEET 11 Tendon Surveillance Program 1.2.3.4.5.6.7.8.9.10.11.Inspection Period Gallons Removed*Sum (Q 1)Tendon Shop Field Shop & Net Duct Vol No. End End Field End Gallo Only one end of vertical tendons may be used for removal and replacement of grease.ume, (QN),)ns Gallons Replaced*Sum (Q 2)Shop Field Shop &End End Field End Cognizant QV Inspector Verification By: Cognizant Mech/Struct Engineer Review By: 100 X (Q 2-Q1) /QN,%Acceptable (Yes or No)Acceptable (Yes or No)Date: Date: Topical Report 204 Revion 0 Attachment 8.4 Page 42 of 87 42 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 DATA SHEET 12 VT-1, VT-3, VT-1C, and VT-3C Examiner Qualification Employer Method Page 1 of 1 Name of Examiner Level I have reviewed the records relevant to the experience and training of the above named individuals and have, as necessary, trained these individuals in the requirements applicable to the performance of visual examinations of the containment concrete surface. Based on this review and, if applicable, training, I find that these individuals are qualified to perform said examinations.

Responsible Engineer:

Name Registration State License No.Expiration Signature Date Exelon NDE Services Concurrence ANII Concurrence Date Date Topical Report 204 Revion 0 Attachment 8.4 Page 43 of 87 43 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 DATA SHEET 13 Review / Acceptance of Contractor Procedures Revision Reviewed/Accepted by Page 1 of 1 Procedure Number / Title Date Topical Report 204 Revion 0 Attachment 8.4 Page 44 of 87 44 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE I Stressing Ram Calibration 170 Wire Stressing Equipment NOTE Calibration will demonstrate a +/- 1.5% accuracy of complete stressing unit within the calibration range specified in this enclosure.

Page 1 of 2 1. Attach entire stressing system to a 1600 K load cell which has been calibrated traceable to NIST.2. Check unit at 3 ram extensions of 25%, 50%, and 75% of full extension and at loads specified on attached data sheet.2.1 Bring stressing unit to gauge pressures equivalent to pressures listed on Data Sheet of this enclosure, and record actual force as read from load cell.3. Record and plot values on a Gauge Pressure versus Force Chart to establish current ram calibration constants for each jack.4. Date all calibrations and paint (or inscribe, attach cal sticker, etc.) calibration date on stressing unit.5. Maintain 1 copy of current calibration with stressing unit at job site.6. Include calibration data and certificate in surveillance report.Topical Report 204 Revion 0 Attachment 8.4 Page 45 of 87 45 1301-9.1 Revision 22 Page 2 of 2 ENCLOSURE I Data Sheet Stressing Ram Calibration RAM DESCRIPTION LOAD CELL CONSTANT RAM CALCULATED TARGET LOAD (KIPS)TARGET PRESS.(PSIG)AT 25% = IN LOADING #1 AT 50% = I LOADING #2 N AT 75% = IN LOADING #3 AVERAGE LOAD (KIPS)LOAD CELL (KIPS)*LOAD CELL (KIPS)*LOAD CELL (KIPS)*I. * .1

• I. 4.150K 300K 500K 600K 700K 800K 900K 1000K 1100K 1200K 1300K 1400K 1500K 1600K RAM CALIBRATION CONSTANTS DETERMINED FROM SLOPE AND INTERCEPT OF STRAIGHT LINE FITTED TO AVERAGE LOAD AND PRESSURE DATA USING THE METHOD OF LEAST SQUARES. AREA IN 2 INTERNAL RESISTANCE(K)

KIP *LOAD CELL X LOAD CELL CONSTANT ATTACH CERTIFICATIONS OF NIST TRACEABILITY FOR TESTING APPARATUS APPROVED BY COGNIZANT MECH/STRUCT ENGINEER:

DATE PREPARED BY LABORATORY TECHNICIAN:

DATE VERIFIED BY LABORATORY SUPERVISOR:

DATE Topical Report 204 Revion 0 Attachment 8.4 Page 46 of 87 46 1301-9.1 Revision 22 Page 1 of 5 ENCLOSURE2 Scope of Each Regularly Scheduled Surveillance (Random Selection Per GAI DC-5930-225.02-SE)

For Scope of the 2010 Augmented Surveillance, See Enclosure 9 TABLE 1 Selected Tendons and Corresponding Inspection Periods VERTICAL TENDONS INSPECTION PERIOD Comments I I Times (Adjacent Tendon 1 2 3 4 5 6 7 8 10 Insp. Tendons)11 X 1 Done 14 X 1 Done 16 X 1 Done 18 X 1 Done 22 X 1 Done 24 X 1 Done 27 X 1 Done 30 X 1 Done 31 X 1 Done 32 X X X X X X 6 29, 33 Control 40 X 1 Done 48 X 1 Done 50 -1 Done 53 X 1 52,54 55 X 1 Done 61 X 1 Done 66 X 1 65,67 72 _ 1 Done 78 X -1 Done 84 X X 2 Done 86 X 1 Done 90 X 1 Done 97 X 1 Done 105 X 1 Done 108 X 1 107, 109 114 X 1 Done 119 -X1 Done 126 X 1 Done 132 X 1 Done 138 X 1 Done 140 X_ 1 139, 141 146 1 Reference TR 203 152 X 1 151,153 158 X 1 Done 159 X Replacement for 146 160 X 1 Done 164 1 __X___ 1 Done TOTAL 5 5 5 5 3 3 4 4 4 4 42 X = Lift-Off]Lift-Off

& Wire Test Topical Report 204 Revion 0 Attachment 8.4 Page 47 of 87 47 1301-9.1 Revision 22 Page 2 of 5 ENCLOSURE 2 Table I (Cont'd)Selected Tendons and Corresponding Inspection Periods HOOPTENDONS INSPECTION PERIOD Comments Tendon 11 2 3 4 5 6 7 58 9 1 Times (Adjacent Te do32 34-1671 10 Insp. Tendons)13-11 X 1 13-10, 13-12 13-28 X 1 Done 13-34 X 1 Done 13-36 X 1 Done 13-41 X 1 Done 13-46 X 1 Done 13-50 1 Done 24-19 X 1 Done 24-20 X 1 Done 24-21 X 1 Done 24-23 X:. 1 24-22, 24-24 24-26 X 1 Done 24-28 X 1 Done 24-30 X 1 Done 24-33 X 1 Done 24-40 X 1 Done 24-47 X 1 Done 24-48 x 1 Done 24-49 X 1 Done 24-50 X 1 24-49, 24-51 24-51 X 1 Done 35-10 X1 Done 35-11 X 1 Done 35-16 X 1 Done 35-23 X 1 Done 35-26 X1 Done 35-28 X 1 Done 35-29 X 1 Done 35-33 X 1 Done 35-47 X >:. 1 Done 35-49 X 1 35-48, 35-50 X = Lift-Off D Lift-Off & Wire Test Topical Report 204 Revion 0 Attachment 8.4 Page 48 of 87 48 1301-9.1 Revision 22 Page 3 of 5 ENCLOSURE 2 Table 1 (Cont'd)Selected Tendons and Corresponding Inspection Periods HOOP TENDONS (Cont'd)INSPECTION PERIOD Comments Tendon 1 2 3 1 1 [8 Times (Adjacent T5 8 9 10 Insp. Tendons)46-24 X 1 Done 46-25 -1 46-23, 46-26 46-28 X 1 Done 46-30 x 1 Done 46-32 X 1 Done 46-34 _ -X 1 Done 46-37 X 1 Done 46-50 X 1 Done 51-11 X 1 Done 51-12 X 1 Done 51-13 X 1 Done 51-16 X 1 51-15,51-17 51-43 X 1 Done 51-49 X, 1 Done 62-10 X X 2 Done 62-11 X 1 Done 62-13 X 1 Done 62-16 X 1 Done 62-18 X 1 62-17, 62-19 62-26 X X X X X X X 7 62-25, 62-27 Control 62-28 X 1 Done 62-30 X 1 Done 62-41 X 1 62-40, 62-42 62-47 <X. 1 Done 62-49 X 1 Done 62-51 X 1 Done 62-53 X 1 Done TOTAL 10 10 10 5 5 5 5 5 5 5 65 X = Lift-Off:75=i Lift-Off & Wire Test Topical Report 204 Revion 0 Attachment 8.4 Page 49 of 87 49 1301-9.1 Revision 22 Page 4 of 5 ENCLOSURE 2 (Cont'd)Table 1 (Cont'd)Selected Tendons and Corresponding Inspection Periods DOME TENDONS INSPECTION PERIOD Comments Times (Adjacent Tendon 1 1 12 1, 4 5 6 1 1 1 1,0 ,nsp. Tendons)101 X 1 Done 102 _-_X__-__1 Done 104 X 1 Done*116 X 1 Done 122 X 1 Done 130 X 1 Done 131 X 1 Done 133 X 1 Done 141 X 1 Done 143 X 1 142,144 145 ____ ___ 1 Done 147 X 1 Done 148 X 1 Done 201 X 1 Done 202 1 Done 203 X 1 Done 213 X 1 212,214 218 X X 2 Done 219 X 1 Done 220 X 1 Done 225 X X X X X X 6 224,226 Control 230 _ _.__ _ _ _ __ 1 229,231 237 ___ X 1 236,238 248 7___X 1 Done 301 __X _ 1 Done 303 -X] 1 302,304 313 X 1 Done 314 _X__ 1 Done 316 X 1 Done 322 ___ 1 Done 334 X 1 Done 336 -1 Done 342 [X] X 1 Done 346 X 1 Done 347 X 1 Done 348 X 1 Done TOTAL 6 6 6 3 3 3 4 4 3 4 42 X = Lift-OffLift-Off and Wire Test[XI = For plant on-line, inspect for corrosion, wire breakage and grease quality on end away from main steam relief valve zone. For plant off-line, perform all inspections including lift off measurements.

Plant off-line inspections committed for Inspection Period 9.* D104 is exempt from detensioning as insufficient clearance from the adjoining vent stack (Buttress

5) to successfully access the tendon end exists. D102 has been selected as D104's (Cycle 7) substitute tendon per IWL-2521.1.

D104 shall be examined per Sections 8.2.1 through 8.2.6 and associated enclosures/data sheets completed (IWL-2521.1.[c]).

Topical Report 204 Revion 0 Attachment 8.4 Page 50 of 87 50 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 2 (Cont'd)Table 2 Tendons Selected for Detensioning and Tendon Wire Removal/Lab Tests Page 5 of 5 Inspection Tendon Location Period Vertical .Hoop Dome 1 V-27 H-35-10 D-301 2 V-119 H-62-47 D-202 3 V-18 H-46-30 D-336 4 V-14 H-35-26 D-314 5 V-50 H-46-34 D-145 6 V-78 H-35-47 D-248 7 V-164 H-13-50 D-102 8 V-140 H-46-25 D-230 9 V-90 H-51-49 D-322 10 V-146 H-24-23 D-237 Topical Report 204 Revion 0 Attachment 8.4 Page 51 of 87 51 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 3 Page 1 of 6 COLLECTION/LAB ANALYSIS OF FILLER GREASE PURPOSE: Confirm the ability of filler grease to perform its intended corrosion protection function.LIMITS AND PRECAUTIONS:

1. Use Wooden or plastic paddles or spatulas to scoop out bulk filler grease from around the anchorage.

DO NOT use metal implements.

PROCEDURE:

1. Inspection Grease 1.1 Contact TESTING LABORATORY to determine size of sample required.1.2 Take one random sample of bulk filler grease from tendon end and put into clean container supplied either by TESTING LABORATORY or TENDON SURVEILLANCE CONTRACTOR.

1.3 Attach

an identification tag to container with tendon group, tendon number, and tendon end specified. (Example:

Dome 105NW)2. Fresh Grease 2.1 Commercial Grade Dedication of new bulk filler grease requires that at least 25% of the barrels for each grease lot number be sampled for lab analysis.2.2 Attach an identification tag to each sample and corresponding identification on each drum sampled.3. Old Grease (to be reused)3.1 If grease obtained from tendons is intended to be reused to refill tendons (termed "old grease") perform lab analysis on "old grease".3.2 Heat each container of old grease to be reused to approximately 1500 F to ensure a homogeneous mixture.3.3 Attach an identification tag to each sample and corresponding identification to each drum.4. Package all samples and ship to TESTING LABORATORY in such a way that condition of grease is not adversely affected or altered.Topical Report 204 Revion 0 Attachment 8.4 Page 52 of 87 52 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 3 Page 2 of 6 5. Test lab perform corrosion protection medium analysis as follows (excerpt Table IWL-2525-1):

Characteristic Test Method Acceptance Limit Water Content ASTM D 95 10% by weight Water Soluble Chlorides ASTM D 512 (Note [1]) 10 ppm maximum Water soluble nitrates ASTM D 992 (Note [1]) 10 ppm maximum Water soluble sulfides APHA 427 (Note [1]) 10 ppm maximum (Methylene Blue)Reserve Alkalinity ASTM D 974 (Note [3])(Base Number) Modified (Note [2] and Note [4])NOTES: (1) Water Soluble Ion Tests. The inside (bottom and sides) of a one (1) liter beaker, approximate OD 105 mm, height 145 mm, shall be thoroughly coated with between 90 and 110 grams of the sample. The coated beaker is to be filled with approximately 900 ml of distilled water and heated in an oven at a controlled temperature of 100 degrees F +/- 2 degrees F for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. Water extraction is tested by the noted test procedures for the appropriate water soluble ions. Results are to be reported as PPM in the extracted water.(2) ASTM D 974 Modified.

Place 10 g of sample in a 500 ml Erlenmeyer flask. Add 10 cc isopropyl alcohol and 5 cc toluene. Heat until sample goes into solution.

Add 90 cc distilled water and 20 cc 1 NH 2 SO4. Place solution on a steam bath for 1/2 hour. Stir well. Add a few drops of indicator (1% phenolphtalein) and titrate with 1 NNaOH until the lower layer just turns pink. If acid or base solutions are not exactly 1 N, the exact normalities should be used when calculating the base number. The Total Base Number (TBN) expressed as milligrams of KOH per gram of sample, is calculated as follows: TBN = [(20)(NA)-(B)(NB)]56.1 W Where, B = milliliters NaOH NA = normality of H 2 S04 NB = normality of NaOH solution W = weight of sample in grams Topical Report 204 Revion 0 Attachment 8.4 Page 53 of 87 53 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 3 Page 3 of 6 (3) The base number shall be at least 50% of the as-installed value, unless the as-installed value is 5 or less, in which case the base number shall be no less than zero. If the tendon duct is filled with a mixture of materials having various as-installed base numbers, the lowest number shall govern acceptance.

Two kinds of bulk filler grease were used for the initial fill at TMI-1. These are 2090P and 2090P-2 both by Viscosity Oil Co. The 2090P was essentially neutral with a Base Number of zero. The 2090P-2 has a Base Number of 3.Expected Base Number for 2090P and 2090P-2 is zero or higher with a tolerance of -.5. Since reserve alkalinity was not reported on the certifications for 2090P and 2090P-2, the testing of samples of this grease is primarily to detect significant changes in Base Number over a period of time that might indicate abnormal degradation of the corrosion inhibiting properties, e.g., a trend developing where the grease is progressively becoming acidic over time.Fresh new grease is 2090P-4 by Viscosity Oil Co. with a Base Number of 35. Acceptance Criteria for the fresh grease before it is mixed with existing grease is a Base Number of 17.5 or higher.(4) Grease samples which exhibit reserve alkalinity number of <.5 shall be retested per the unmodified version of ASTM D974 Section 9 and an acid number generated for the sample. Both the reserve alkalinity number and the acid numbers shall be reported with the test results when this occurs. Acceptance criteria for Acid Number is that it must be < 1.Topical Report 204 Revion 0 Attachment 8.4 Page 54 of 87 54 1301-9.1 Revision 22 Page 4 of 6 ENCLOSURE 3 Data Sheet 1 Laboratory Analysis of Bulk Filler Grease Dome Tendons INSPECTION PERIOD SAMPLE IDENTIFICATION 1.2.3.4.TENDON END CHLORIDES(1)(PPM)WATER/DRY RESERVE" 1)NITRATES(')

SULFIDES(1) WEIGHT (2) ALKALINITY (PPM) (PPM) % (BASE NUMBER)LABORATORY TECHNICIAN PREPEARED BY: DATE: LABORATORY SUPERVISOR VERIFIED BY: DATE: COGNIZANT MECH/STRUCT ENGINEER APPROVED BY: DATE: 5.(1) ACCEPTANCE CRITERION IS GIVEN ON PAGE 2 OF ENCLOSURE 3.(2) ACCEPTANCE CRITERION IS 10% MAXIMUM BY WEIGHT.TENDON END: NW, NE, SW, SE Topical Report 204 Revion 0 Attachment 8.4 Page 55 of 87 55 1301-9.1 Revision 22 Page 5 of 6 ENCLOSURE 3 Data Sheet 2 Laboratory Analysis of Bulk Filler Grease Vertical Tendons INSPECTION PERIOD SAMPLE IDENTIFICATION 1.2.3.4.5.TENDON END CHLORIDES(1)(PPM)WATER/DRY RESERVE(1)NITRATES(1) SULFIDES(1) WEIGHT (2) ALKALINITY (PPM) (PPM) % (BASE NUMBER)LABORATORY TECHNICIAN PREPEARED BY: DATE: LABORATORY SUPERVISOR VERIFIED BY: DATE: COGNIZANT MECH/STRUCT ENGINEER APPROVED BY: DATE: (1) ACCEPTANCE CRITERION IS GIVEN ON PAGE 2 OF ENCLOSURE 3.(2) ACCEPTANCE CRITERION IS 10% MAXIMUM BY WEIGHT.TENDON END: TOP, BOTTOM Topical Report 204 Revion 0 Attachment 8.4 Page 56 of 87 56 1301-9.1 Revision 22 Page 6 of 6 ENCLOSURE 3 Data Sheet 3 Laboratory Analysis of Bulk Filler Grease Hoop Tendons INSPECTION PERIOD SAMPLE IDENTIFICATION 1.2.3.4.5.6.TENDON END CHLORIDES" 1'(PPM)NITRATES" 1)(PPM)SULFIDES" 1)(PPM)WATER/DRY WEIGHT (2)RESERVE(')

ALKALINITY (BASE NUMBER)DATE: DATE: DATE: (1) ACCEPTANCE CRITERION IS GIVEN ON PAGE 2 OF ENCLOSURE 3.(2) ACCEPTANCE CRITERION IS 10% MAXIMUM BY WEIGHT.TENDON END: BUTTRESS NUMBER LABORATORY TECHNICIAN PREPEARED BY: LABORATORY SUPERVISOR VERIFIED BY: COGNIZANT MECH/STRUCT ENGINEER APPROVED BY: Topical Report 204 Revion 0 Attachment 8.4 Page 57 of 87 57 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 4 Page 1 of 5 TENDON RANDOM WIRE REMOVAL/PHYSICAL TESTING (See Table 2 of Enclosure 2 and Table 2 of Enclosure 9 for tendons which require wire removal).LIMITS AND PRECAUTIONS

1. Ensure proper identification of tendon before cutting and pulling test wire.2. Use care to avoid damage to adjoining wires/buttonheads.

3. Avoid unnecessary marks on wire while removing it.PROCEDURE 1. IDENTIFY ONE PULLABLE WIRE Select one of the protruding wires (with tendon totally detensioned) and tap on it, rotate, or pull while observing movement of buttonhead at other end to identify both ends. Confirm wire identification before cutting.2. CUT Cut off button head at opposite end from where puller will be installed.

3. INSTALL PULLER Install wire puller and slowly commence pulling. Verify cut end starts moving through end washer.4. PULL AND COIL Use a come-along or some similar method to pull approximately 170 feet of wire. A cable gripper may be used to grip wire but avoid as much as possible making surface marks on the wire.While pulling, coil wire to approximately six foot diameter and secure coil from unwinding.

WARNING A coiled tendon wire has considerable spring force. Inadequate binding could result in violent uncoiling which could injure people.5. TAG Attach metal tag at the button headed end indicating following:

a. Tendon Number Topical Report 204 Revion 0 Attachment 8.4 Page 58 of 87 58 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 1 22 ENCLOSURE 4 Page 2 of 5 b. Identify the button headed end (tagged) as: 1. TOP for vertical tendons.2. BUTTRESS NUMBER for hoop tendons.3. NW, NE, SW, or SE for dome tendons.6. PACKAGE/STORE/SHIP Wrap wire with plastic sheeting and tape securely to protect from elements.7. LABORATORY TESTING 7.1 Clean and carefully inspect entire length of wire for pitting, corrosion, or other signs of deterioration..

Record this information on Data Sheet 1 of this enclosure.

NOTE Wire tests, and determination of elongation and yield strength, to conform to the requirements of ASTM A421 and, per reference therein, ASTM A370 or technically equivalent requirements.

7.2 CUT SAMPLES Cut three (3) samples from each wire, one from each end and one from middle. A fourth sample shall be cut from the area of worst corrosion, if any (IWL-2523.2b).

Length of each sample shall be maximum length acceptable for test apparatus being used. Areas shall be representative of any significant corrosion or pitting but should not include any cable gripper marks.7.3 IDENTIFY LOCATION OF SAMPLES Show on Data Sheet 1 of this enclosure, location along wire length where each sample was taken.Topical Report 204 Revion 0 Attachment 8.4 Page 59 of 87 59 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE4 Page 3 of 5 7.4 TENSILE TEST a. Determine YIELD STRENGTH, ULTIMATE TENSILE STRENGTH, and PERCENT ELONGATION AT ULTIMATE TENSILE STRENGTH.b. Record this data on the Data Sheet 2 of this enclosure.

c. Produce stress strain curves for each test section.ACCEPTANCE CRITERIA -TENDON RANDOM WIRE PHYSICAL TESTING 1. No failure below minimum guaranteed ultimate stress of 240,000 psi.2. Elongation at failure is not less than 4%.3. Wire shows no evidence of damage or active corrosion.

4. If there is rejectable corrosion on the wire, or the wire fails the tensile test, the Cognizant Mechanical/Structural Engineer must evaluate.

Each case shall be treated as an abnormal degradation of the containment structure and reported to the NRC.Topical Report 204 Revion 0 Attachment 8.4 Page 60 of 87 60 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 4 Data Sheet 1 Tendon Wire Inspection Data Page 4 of 5 INSPECTION PERIOD Tendon Identification:

0 25'50'75'25'50'75'100'125'100, 125'150'175'150'175'180'185'190'180'185'Wire Sample Diameters Sample for Tensile Test(2)At 1/4-Points At Breaking Points Sample 1: ft to ft Sample 2: ft to ft Sample 3: ft to ft NOTE 1. Corrosion or any signs of deterioration shall be indicated full length as shown on the above chart.2. Sample shall include areas representative of significant corrosion or pitting if they exist on removed tendon wire.3. Diameter at Breaking Point is to be interpolated from 1/4-point diameters on either side of breaking points.Laboratory Technician prepared by: Date_____Laboratory Supervisor Verified by:-Date_____

Cognizant Mech/Struct Engineer Approved by: Date Topical Report 204 Revion 0 Attachment 8.4 Page 61 of 87 61 1301-9.1 Revision 22 Page 5 of 5 ENCLOSURE 4 Data Sheet 2 Tendon Wire Test Results INSPECTION PERIOD TENDON WIRE (1)SAMPLE NO.DOME 1.2.3.VERTICAL LOCATION (2)FROM END OF WIRE YIELD (3)STRESS (ksi)ULTIMATE STRESS (ksi)PERCENT (4)ELONGATION COMMENTS (IDENTIFY MOST CORRODED SECTION)1.2.3.HOOP 1.2.3.NOTES: (1)(2)(3)(4)See Section 7 of this enclosure.

End starts from end of zero length as indicated on Data Sheet 1 of this enclosure.

Yield stress is defined per ASTM A421.At Ultimate Tensile Strength.Laboratory Technician Prepared By: Laboratory Supervisor Verified By: Cognizant Mech/Struct Engineer Approved By: Date Date Date Topical Report 204 Revion 0 Attachment 8.4 Page 62 of 87 62 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 5 GREASE CAN REMOVAL/REPLACEMENT/REGREASING DELETED Refer to 1410-Y-83 (Reference 2.15)Topical Report 204 Revion 0 Attachment 8.4 Page 63 of 87 63 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE6 Page 1 of 16 ANCHORAGE AND CONCRETE INSPECTIONS A. NORMAL ANCHORAGE AND CONCRETE INSPECTIONS

1. PURPOSE Visual inspection/documentation for free water and of physical condition of anchorage assembly components, i.e., buttonheads, washers, bearing plates.2. LIMITS AND PRECAUTIONS WARNING Each tendon wire is tensioned to nearly 8000 lb. DO NOT strike tendon end assembly with any metal object while tendon is tensioned.

Avoid getting in a direct line with the tendon end while it is tensioned.

3. PROCEDURE 3.1 PRIOR TO LIFT-OFF TEST 3.1.1 3.1.2 3.1.3 Examine interior of end cap and anchorage components for the presence of free water. Document any free water found in the Comments area on Data Sheet 4. Collect a sample of the water if present in sufficient quantity to allow this and label container to identify for later laboratory test to determine pH.Observe each tendon anchorage for buttonheads which are missing or which protrude.

Document on Data Sheets 1, 2, 3, and 4 of this enclosure.

Check anchorheads for any sign of cracking or serious degradation.

Cracks, resulting in failure of anchorheads, have occurred at other plants. Before applying hydraulic ram the condition of each tendon anchorhead should be inspected to avoid potential personnel hazard. Notify Cognizant Mechanical/Structural Engineer immediately if degradation is noted. Be advised that this has been a problem at other plants in the past.3.2 WHILE DETENSIONED, IF APPLICABLE Inspect for buttonheads which protrude much farther than adjoining one. Make note of these on Data Sheet 4 of this enclosure to facilitate location (for reinspection after retensioning).

Topical Report 204 Revion 0 Attachment 8.4 Page 64 of 87 64 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 6 Page 2 of 16 3.3 AFTER LIFT-OFF TEST AND, IF APPLICABLE, AFTER RETENSIONING

3.3.1 Inspect

for buttonheads which are missing or which protrude.

Document on the Data Sheet 1, 2, 3, and 4 of this enclosure.

3.3.2 Perform

VT-1 inspection of buttonheads.

Document active corrosion and damage.3.3.3 Document buttonhead inspection results on Data Sheets 1, 2, 3, and 4 of this enclosure.

3.3.4 Perform

VT-1 inspection of anchorage washer/shims/bearing plates. Document cracks and corrosion on Data Sheets 1, 2, and 3 of this enclosure 3.3.5 Perform VT-1 C of concrete for a distance of 2 feet extending outward from the bearing plate, for cracking or voids and for gaps between bearing plate and concrete.

Use an optical comparator or feeler gages.3.3.6 Document findings on Data Sheets 5, 6, or 7 of this enclosure.

Use grid paper and Data Sheet 9, of this enclosure as necessary to identify significant crack patterns and widths.3.3.7 Immediately after inspection of the buttonheads, butter the end of the anchorhead with clean bulk filler grease completely coating all buttonheads to provide temporary corrosion protection until the tendon is bulk filled.4. ACCEPTANCE CRITERIA 4.1 No evidence of cracking in anchor heads, shims, washers, or bearing plates (IWL 3221.3).4.2 No anchorage assembly shims, buttonheads or washers with active corrosion.

4.3 Anchorage

assembly shims, buttonheads or washers with evidence of active corrosion are subject to rejection and shall be further evaluated by the Cognizant Mechanical/Structural Engineer.Topical Report 204 Revion 0 Attachment 8.4 Page 65 of 87 65 Number TMI- Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 6 Page 3 of 16 4.4 No bearing plates with active corrosion.

4.5 Bearing

plates with evidence of active corrosion are subject to rejection and should be further evaluated by the Cognizant Mechanical/Structural Engineer.4.6 Cracks in surrounding concrete face greater than 0.010 inch wide shall receive engineering evaluation.

4.7 Cracks

in surrounding concrete face greater than/equal to 0.050 inch wide shall be repaired after appropriate engineering evaluation.

Repair per TM I-1 approved repair procedure.

4.8 Cracks

larger than 0.020 shall be monitored in future Tendon Surveillances until repaired.4.9 IF any missing, broken and/or damaged wires are detected, check inspection reports from previous inspections to determine if damage was noted previously.

Record findings on Data Sheets 1, 2, and 3 under "comments" section and on Data Sheet 4 of this enclosure.

4.10 Ensure Data Sheets 1 through 10 of this enclosure are filled out and signed.B. CONCRETE CRACKS AT 9 SELECTED DOME TENDON ANCHORAGE AREAS IDENTIFIED ON DATA SHEET 8 of this enclosure (Periods 4, 5 6, and 7)1. PURPOSE Inspection for concrete crack growth at Ring Girder anchorage areas. Required per Tech. Spec.4.4.1.2.5 and also per report to NRC for 15 year Tendon Surveillance.

Topical Report 204 Revlon 0 Attachment 8.4 Page 66 of 87 66 I Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE6 Page 4 of 16 2. PROCEDURE 2.1 Perform VT-1C of concrete around dome tendon anchorage areas for crack growth for a distance of 2 feet extending outward from the bearing plate during 10 (Period 4), 15 (Period 5), 20 (Period 6), 25 (Period 7), and 30 (Period 8) year inspections by monitoring cracks greater than 0.005 inch in width.2.2 Measure width, depth (if depth can be measured with simple existing plant instrument, i.e.feeler gauges, wires) and length of selected cracks by charting, as necessary.

2.3 Use Data Sheets 8 and 9 of this enclosure to document inspection results.NOTE Results of crack measurements made during the 3 years after SIT are filed under 1301-8.2, "Ring Girder Surveillance Program". (The procedure has since been cancelled and the procedure number was re-assigned to a different procedure).

3. ACCEPTANCE CRITERIA 3.1 Data Sheets 9 and 10 of this enclosure filled out and signed.3.2 3.3 Submit completed Data Sheets 9 and 10 of this enclosure to Cognizant Mechanical/Structural Engineer for evaluation.

This inspection may be discontinued if the concrete cracks show no sign of growth. If, however, these inspections indicate crack growth, an investigation of the causes and safety impact shall be performed.

Cracks in surrounding concrete face greater than 0.010 inch wide shall receive engineering evaluation.

3.4 Cracks

in surrounding concrete face greater than/equal to 0.050 inch wide shall be repaired after appropriate engineering evaluation.

Repair per TMI-1 approved repair procedure.

(1440-Y-23).

C. VISUAL INSPECTION OF CONTAINMENT

1. PURPOSE Visual inspection of 100% of all accessible surfaces of the exterior concrete surfaces of containment, and examination of tendon end caps for grease leakage or end cap deformation except for the 1-year follow-up exam of the SGRP opening.The 1-year follow-up exam of the SGRP opening may be limited to visual inspection of 100% of accessible surfaces of the exterior concrete of the SGRP Containment Opening Concrete Repair, and examination of tendon end caps for grease leakage or end cap deformation during the Augmented Inspection for the SGRP Containment Opening.Topical Report 204 Revion 0 Attachment 8.4 Page 67 of 87 67 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE6 Page 5 of 16 2. PROCEDURE NOTE Areas that have suspect indications or require more sensitivity shall receive a VT-1C inspection.

All potentially unacceptable indications shall have a sketch generated detailing the indication's size and location, for trending or Engineering Evaluation purposes.2.1 Perform VT-3C visual examination of the exterior concrete surface of the containment including the foundation mat around the bottom vertical tendon anchorages noting results of examination on DATA SHEET 10 of this enclosure.

2.2 2.3 The VT-3C examination shall detect, describe, and locate evidence of conditions defined in ACI 201.1 R-92 and any of the following indications of possible abnormal degradation:

Large spall, severe scaling, grease leakage, other surface deterioration.

Visually inspect all tendon end caps for grease leakage or grease cap deformation.

Removal of grease caps is not necessary for this inspection.

2.3.1 If grease cap deformation is noted which is indicative of anchorage hardware deterioration then the grease cap will be removed for further inspection.

NOTE Areas considered inaccessible, shall be evaluated when conditions exist in accessible areas that indicate the presence of, or result in degradation of inaccessible areas.3. ACEPTANCE CRITERIA 3.1 Concrete surface indications meeting the surface condition attributes listed in Section 5.1 of ACI 349.3R-96, are generally acceptable without further Engineering Evaluation.

Conditions non-compliant with Section 5.1 shall be submitted to Cognizant Mechanical/Structural Engineer in order to ascertain if there is evidence of damage or degradation sufficient to warrant further evaluation or repair.3.2 3.3 Tendon end grease caps shall show no evidence of active grease leakage.Tendon end grease caps shall show no evidence of grease cap deformation, which may be indicative of anchorage hardware deterioration.

Topical Report 204 Revion 0 Attachment 8.4 Page 68 of 87 68 1301-9.1 Revision 22 ENCLOSURE 6 Page 6 of 16 Data Sheet 1 Anchorage Assembly Surveillance Inspection Dome Tendons INSPECTION PERIOD STRESSING WASHER& NUT INSP. BY VERIF. BY DATE CONTR. COGNIZANT INSP. COMMENTS FOREMAN QV INSP.TENDON END BUTTONHEADS SHIMS BEARING PLATE I.D. Location Corr.1 2 3 2. _3. _4. _5. _6. _NO. OF MISSING, BROKEN, AND/OR DAMAGED WIRES 4 CORR.5 SKETCHED CORR. CRACKS SKETCHED CORR. CRACKS SKETCHED CORR. CRACKS SKETCHED 6 7 8 9 10 11 12 13 14 15 16 17 18 19 LEGEND GENERAL Y = YES N = NO TENDON END-LOCATION IDENTIFY TENDON END (SHOP OR FIELD) AND NW, NE, SW, SE Topical Report 204 Revion 0 Attachment 8.4 Page 69 of 87 69 ENCLOSURE 6 Data Sheet 2 Anchorage Assembly Surveillance Inspection Vertical Tendons 1301-9.1 Revision 22 Page 7 of 16 INSP. BY VERIF. BY DATE CONTR. COGNIZANT INSP. COMMENTS FOREMAN QV INSP.INSPECTION PERIOD STRESSING WASHER& NUT TENDON END BUTTONHEADS SHIMS BEARING PLATE-_N___k/A

_NO. OF MISSING, BROKEN, AND/OR DAMAGED WIRES 4 I.D. Location Corr.1 2 3 1. _____2. _3. _CORR. SKETCHED CORR. CRACKS SKETCHED CORR. CRACKS SKETCHED CORR. CRACKS SKETCHED 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 4.5.6.LEGEND GENERAL Y = YES N = NO TENDON END-LOCATION IDENTIFY TENDON END (SHOP OR FIELD) AND TOP (T) OR BOTTOM (B) OF TENDON Topical Report 204 Revion 0 Attachment 8.4 Page 70 of 87 70 ENCLOSURE 6 Data Sheet 3 Anchorage Assembly Surveillance Inspection Hoop Tendons 1301-9.1 Revision 22 Page 8 of 16 INSP. BY VERIF. BY DATE CONTR. COGNIZANT INSP. COMMENTS FOREMAN QV INSP.INSPECTION PERIOD___________

STRESSING WASHER& NUT TENDON END BUTTONHEADS SHIMS BEARING PLATE NO. OF MISSING, BROKEN, AND/OR DAMAGED I.D. Location Corr. WIRES 1 2 3 4 2._ ____ _____3._ ____ _____CORR. SKETCHED CORR. CRACKS SKETCHED CORR. CRACKS SKETCHED CORR. CRACKS SKETCHED 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 5.6.LEGEND GENERAL Y = YES N = NO TENDON END-LOCATION IDENTIFY TENDON END (.SHOP OR FIELD) AND NUMBER OF BUTTRESS (1 TO 6) AT TENDON END Topical Report 204 Revion 0 Attachment 8.4 Page 71 of 87 71 1301-9.1 Revision 22 ENCLOSURE 6 Page 9 of 16 Data Sheet 4 Tendon Buttonhead Inspection RB Tendon Surveillance COMMENT: INSPECTED BY CONTRACTOR FOREMAN VERIIFIED BY COGNIZANT QV INSPECTOR COGNIZANT MECH/STRUCT ENGINEER REVIEWED BY Date Date Date INSPECTION PERIOD Tendon #END: FIELD (1 piece washer)SHOP (2 piece washer)Topical Report 204 Revion 0 Attachment 8.4 Page 72 of 87 72 ENCLOSURE 6 Data Sheet 5 Tendon Anchorage Area Concrete Crack Inspection Dome Tendons 1301-9.1 Revision 22 Page 10 of 16 Insp. By Contr.Foreman Inspection Period Tendon No.1. ____2.3.4.Cracks with width >0.01" Location(A)

Width (IN.)(B)Location Remarks about Crackina Pattern Date Insp.Verify. By Cognizant QV Insp.5.6.__ _ __ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ ___ _ _ _NOTE: (A) Location: Identify Tendon End (Shop or Field) and NW, NE, SW, SE (B) If concrete crack width > 0.01", provide sketch Cognizant Mech/Struct Engineer Reviewed By: Date: Topical Report 204 Revion 0 Attachment 8.4 Page 73 of 87 73 1301-9.1 Revision 22 Page 11 of 16 ENCLOSURE 6 Data Sheet 6 Tendon Anchorage Area Concrete Crack Inspection Vertical Tendons Inspection Period Tendon No.Cracks with width >0.01" Location(A)

Width (IN.)(B)Date Insr, Insp. By Contr.Foreman Verify. By Cognizant QV Insp.Location Remarks about Crackina Pattern 1.2.3.4.5.6.7.NOTE: (A) Location: Identify Tendon End (Shop or Field) and T or B -Top or Bottom of Vertical Tendon (B) If concrete crack width > 0.01", provide sketch Cognizant Mech/Struct Engineer Reviewed By:.Date: Topical Report 204 Revion 0 Attachment 8.4 Page 74 of 87 74 1301-9.1 Revision 22 Page 12 of 16 ENCLOSURE 6 Data Sheet 7 Tendon Anchorage Area Concrete Crack Inspection Inspection Period Tendon No.1.2.3.4.5.6.Location Remarks about Cracking Pattern Hoop Tendons Cracks with width >0.01 Location(A)

Width (IN.)(B)Date Insp.Insp. By Contr. Foreman Verify. By Cognizant QV Inso.7.8.9.10.NOTE: (A) Location: Identify Tendon End (Shop or Field) and 1 to 6 -Number of Buttress At End of Tendon (B) If concrete crack width > 0.01 ", provide sketch Topical Report 204 Revion 0 Attachment 8.4 Page 75 of 87 Cognizant Mech/Struct Engineer Reviewed By: Date: 75 ENCLOSURE 6 Data Sheet 8 Concrete Crack Growth Inspection Dome Tendons Inspection Period Tendon No.1. D-103 Cracks with width >0.01" Location(A)

Width (IN.)(B)Date Insp.2. D-118 3. D-203 4. D-218 5. D-225 6. D-249 7. D-313 8. D-329 9. D-334 10.11.12.Location NE END SW END NE END SE END NW END SE END SE END SW END NW END Remarks about Crackinc Pattern 1301-9.1 Revision 22 Page 13 of 16 Insp. By Contr.Foreman Verify. By Cognizant QV Insp.NOTE: (A) Location: Identify Tendon End (Shop or Field) and NW, NE, SW, Se (B) If concrete crack width > 0.01", provide sketch Cognizant Mech/Struct Engineer Reviewed By: Date: Topical Report 204 Revion 0 Attachment 8.4 Page 76 of 87 76 1301-9.1 Revision 22 ENCLOSURE 6 Page 14 of 16 DATA SHEET 9 Crack Growth Inspections Choose the sketch which is most appropriate and plot the observed cracks.INSPECTED BY CONTRACTOR DATE VERIFIED BY COGNIZANT QV INSPECTOR DATE REVIEWED BY COGNIZANT MECH/STRUCT ENGINEER DATE Topical Report 204 Revion 0 Attachment 8.4 Page 77 of 87 77 ENCLOSURE 6 Data Sheet 10 General Containment Inspection Results 1301-9.1 Revision 22 Page 15 of 16 Mat Foundation in Tendon Gallery Tendon Grease Caps Buttress 1 to 2 Buttress 2 to 3 Buttress 3 to 4 Cognizant Mech/Struct Engineer Reviewed By: Performed By: Date: Date: Topical Report 204 Revion 0 Attachment 8.4 Page 78 of 87 78 ENCLOSURE 6 Data Sheet 10 General Containment Inspection Results 1301-9.1 Revision 22 Page 16 of 16 Buttress 4 to 5 Buttress 5 to 6 Buttress 6 to 1 Dome Area Cognizant Mech/Struct Engineer Reviewed By: Date: Performed By: Date: Topical Report 204 Revion 0 Attachment 8.4 Page 79 of 87 79 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE7 Page 1 of 3 Additional Inspection Commitments Due to Abnormalities Previously Documented in 1301-9.1 Inspection Abnormality Period Noted Commitment Comments 1 5/21/75 NONE NONE NONE-7/02/75 2 Tendon H-51-13 had Inspect H-51-13 buttonheads 8/17/77 -numerous cracked in period 3 to determine if NONE 11/11/77 buttonheads.

cracking continues.

3 V31 Lift off 3 Do lift off on V30 and V32 LER 81-010 sub -4/17/80 -kips low and in period 4. Reinspect to document incom-8/6/80 adjacent tendons V1 38 in period 4 to plete inspect, during not lifted off. better document the 1980 surveillance.

V138 Category corrosion and evaluate.

H-51-13 inspection 4 Corrosion showed no continued cracking.4 Lift off of V30 & V32 was 5/85 -NONE NONE performed with acceptable 6/85 results. The corrosion on V138 was evaluated

& found acceptable.

5 Some cracks During period 6 repeat 10/89 -appeared to have the concrete cracks 1/90 grown slightly inspection as required in NONE from previous.

Enclosure 6.6 All SDR's accept condition(s) 9/94 -11/94 As captured in SDR's 1 None found with no further action and 9/95 through 6 required 7* Grout overlay repairs not Consider performing repairs 30 Year Exam completely sound (T.R.136, Sec. 4.3)SE quad above ring girder Reexamine rebar and/or 30 Year Exam-Grout cover coming off & consider grout repair Underlying rebar exposed (T. R. 136, Sec. 4.2)7* Construction joint above reexamine crack & ensure 30 Year Exam ring girder between stable D32ONE & D321NE -Crack @ .018" wide (T.R.136, Sec. 4.5)* Reference Topical Report (T.R.) No. 136, Tendon Surveillance 25th Year (Period 7) for details surrounding the abnormalities noted and commitments made to the regulator in that Topical Report for Period 7.Topical Report 204 Revion 0 Attachment 8.4 Page 80 of 87 80 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE7 Page 2 of 3 Inspection Abnormality Period Noted Commitment Comments 7* (Cont'd) Crack @ H46-37 @ .013" reexamine crack & ensure 30 Year Exam wide w/in 2' of base plate stable edge (T.R. 136, Sec. 4.7)Some grease samples Ensure grease samples w/ <.5 30 Year Exam exhibit Reserve Alkalinity retested per Unmodified Version No. < .5 ASTM D974 Sec. 9 for acid number V1 64 field end w/ nitrates @ Reexam of 2 nd sample found 30 Year Exam 10.3 ppm (T.R. 136, Sec. SAT. Resample V164 field end 4.8) to ensure nitrates stable.V86 -assurance of resample grease @ field end 30 Year Exam complete Tendon void V86 & top off with grease.grease fill not satisfied (T. R.136, Sec. -4.9)Some areas found spalled Reexam spalled areas -ensure 30 Year Exam during IWL exam (T.R. 136, stable and/or grout repair Sec. 4.4)Cracks found over FHB Perform VT-1C exam & ensure 30 Year Exam Roof between buttresses 3 stable w/ no active degradation

& 4 (T.R. 136, Sec. 4.1) Mechanism 8** Repairs required for grout, VT-1NT-1C exams of all repairs 35 Year Exam 2004 concrete cracks, exposed listed in TR-183, Section 5.1 reinforcing steel, vertical tendon upper end bearing plate corrosion as listed in TR-183, Section 5.1 Overall concrete surface Re-examine VT-1/VT-1C of all 35 Year Exam degraded conditions as listed areas previously identified for in TR-183, Section 4.1,4.2 detailed examination, but not repaired.D-342 tendon exams limited Do full set of tests and 35 Year Exam by location over Main steam examinations, during 2009 Safety Valve Discharge Refueling Outage, for D-342 piping Reference Topical Report (T.R.) No. 136, Tendon Surveillance 2 5 th Year (Period 7) for details surrounding the abnormalities noted and commitments made to the regulator in that Topical Report for Period 7.Reference Topical Report (T.R.) No. 183, Tendon Surveillance 3 0 th Year (Period 8) for details surrounding the abnormalities noted and commitments made to the regulator in that report.Topical Report 204 Revion 0 Attachment 8.4 Page 81 of 87 81 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 7 Page 3 of 3 Inspection Abnormality Noted Commitment Comments Period 9*** Containment Opening The surface of new concrete 1 Year SGRP Follow-up Exam Repair placed in the steam generator opening will be VT-1C examined at the new concrete perimeter and corners for evidence of shrinkage cracks /separation.

9*** Containment Opening The tendon gallery will be 1 Year SGRP Follow-up Exam Repair examined for evidence of CPM leakage and the effects of ground water seepage.9*** Incomplete pump through Verify CPM level and add as 1 Year SGRP Follow-up Exam of CPM in V157 necessary to V1 57 9*** Grout overlay of SE quad Perform VT-1 C exam & ensure 4 0 th Year Exam above ring girder, no stable w/ no active degradation deterioration noted Mechanism 9*** CPM leakage in Tendon Perform VT-iC exam of The 4 0 th Year Exam Gallery Ceiling Area tendon gallery ceiling area including base mat concrete, tendon bearing plates and tendon end caps for evidence of CPM leakage, effects ground water seepage on concrete and steel items, deterioration of previously documented exposed reinforcing and, other damage / deterioration.

9*** CPM seepage through Perform VT-1C exam of the 4 0 th Year Exam vertical cracks on lower lower wall above the base mat wall above base mat. to determine whether or not corrosion protection medium seepage through the vertical cracks is increasing as evidenced by CPM accumulation on the top of the base mat.9*** Light, inactive rust noted on Perform VT-1 exam of V84 40th Year Exam V184 bearing plate lower end bearing plate including all surface area visible without de-tensioning of the tendon and removal of shims.***Reference Topical Report (T.R.) No. 203, Tendon Surveillance 3 5 th Year (Period 9) for details surrounding the abnormalities noted and commitments made to the regulator in that report.Topical Report 204 Revion 0 Attachment 8.4 Page 82 of 87 82 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 8 Safe Access Guidelines for Tendon Work During Power Operations Page 1 of 1 LA~2 ATN~~.XtC

~1O-34-1-43 7- 4,A3N-1dOOH (1)Dome Insp.OK Se~S~~UflS

~1~1/N~o 600H (Il-c1~N~ ~OG~Lfn X7N 'SNT dWHh T F 53e-ung V dSt41 .0011 1-&2 (L 2-75-;?C dootM --,?.* 553kL-linfl 95 dsN-1 o0H A. .9 94. IT'NOTE (1) Additional review with Industrial Safety in 2009 expanded the acceptable work zone at power to include these buttress 6 areas.Topical Report 204 Revion 0 Attachment 8.4 Page 83 of 87 83 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 9 Master List of SGRP Affected Tendons and Surveillance Scope Table I List and Description of SGRP Affected Tendons and Corresponding Inspection Periods Page 1 of 4 HOOPTENDONS Inspection Period Cmet Tendon SGRP Impact Inspectio3Comments 46-42 Retensioned 46-41 Retensioned X 46-40 Retensioned 46-39 Replaced X 46-38 Replaced 46-37 Replaced 46-36 Replaced 46-35 Replaced 46-34 Replaced 46-33 Replaced 46-32 Replaced 46-31 Replaced 46-30 Replaced 46-29 Retensioned 46-28 Retensioned 51-42 Retensioned 51-41 Retensioned 51-40 Retensioned 51-39 Replaced 51-38 Replaced 51-37 Replaced 51-36 Replaced 51-35 Replaced 51-34 Replaced 51-33 Replaced 51-32 Replaced 51-31 Replaced 51-30 Replaced 51-29 Replaced 51-28 Replaced Total 2 X = Lift-off X = Lift-off & Wire Test Topical Report 204 Revion 0 Attachment 8.4 Page 84 of 87 84 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 9 Master List of SGRP Affected Tendons and Surveillance Scope Table I (Cont'd)List and Description of SGRP Affected Tendons and Corresponding Inspection Periods Page 2 of 4 Vertical Tendons Inspection Period Comments Tendon SGRP Impact 1 Year 10 11 12 13 V113 Retensioned V114 Retensioned V115 Retensioned V116 Retensioned V117 Retensioned Vl18 Retensioned X V119 Retensioned V120 Retensioned V121 Retensioned V122 Retensioned V123 Retensioned V124 Retensioned V125 Retensioned V126 Retensioned V127 Retensioned V128 Retensioned V129 Retensioned V130 Retensioned V131 Replaced V132 Replaced V133 Replaced V134 Replaced X V135 Replaced V136 Replaced V137 Replaced V138 Replaced V139 Replaced V140 Replaced V141 Retensioned V142 Retensioned V143 Retensioned V144 Retensioned V145 Retensioned V146 Retensioned V147 Retensioned V148 Retensioned V149 Retensioned V150 Retensioned V151 Retensioned Topical Report 204 Revion 0 Attachment 8.4 Page 85 of 87 85 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 9 Master List of SGRP Affected Tendons and Surveillance Scope Table 1 (Cont'd)List and Description of SGRP Affected Tendons and Corresponding Inspection Periods Page 3 of 4 Vertical Tendons Tendon SGRP Impact Inspection Period Comments Tendon 52 GRPImpact 1 Year 10 11 12 13 V152 Retensioned V153 Retensioned V154 Retensioned V155 Retensioned V156 Retensioned

_____________________

V157 Retensioned Total 2 X -Lift-off X_ =_Lift-off

& Wire Test Topical Report 204 Revion 0 Attachment 8.4 Page 86 of 87 86 Number TMI -Unit 1 Surveillance Procedure 1301-9.1 Title Revision No.RB Structural Integrity Tendon Surveillance 22 ENCLOSURE 9 Master List of SGRP Affected Tendons and Surveillance Scope Page 4 of 4 Table 2 SGRP Affected Tendons Selected for Detensioning and Tendon Wire Removal/Lab Tests Tendon Location Inspection Period Tical Loop Vertical Hoop 1 Year V118 46-39 10 11 12 13 Topical Report 204 Revion 0 Attachment 8.4 Page 87 of 87 87 Tendon Gallery Examination for Water Seepage and Corrosion Protection Medium Leakage During the October 2011 surveillance, the walls, ceiling and floor of the tendon gallery were examined for indications of ground water seepage as well as leakage of corrosion protection medium (CPM) from tendon end caps.Overall, water seepage through the gallery outer wall, which fluctuates with the water table, was substantially unchanged from that observed during the 3 5 th year surveillance in late 2009. As noted in the report documenting that surveillance, there is some accumulation of mineral deposit at the seepage areas but no evidence that the water is eroding gallery wall concrete.

There is no reason to expect a significant change in the level of seepage between the time of this most recent examination and the 4 0 th year surveillance, which is currently scheduled for the fall of 2013. Nonetheless, water inflows should be noted during periodic plant walk-downs and unusual conditions observed reported through the corrective action process.CPM leakage was minor, with evidence of leakage limited to dispersed oily droplets on tendon end caps / bearing plates and small (1" -2" in diameter) oily spots on the floor.Based on the results of the examination, it is concluded that recent repair work has eliminated all of the significant leaks observed at the start of the 3 5 th year surveillance and that no further corrective action is needed at the present time. However, as development of leakage through a tendon end cap gasket is always possible, the gallery floor should be checked for CPM accumulation during periodic plant walk-downs.

Any significant accumulation observed should be reported through the corrective action process.Examination report prepared by: Howard T. Hill, P. E.Responsible Engineer for IWL Examination

/ R & R activities 02 Mar 11 Topical Report 204 Revion 0 Attachment 8.5 Page 1 of 1 AR# 00982006 A02 Reason for Evaluation

/ Scope: During work activities to prepare vertical tendons for removal in support of the Reactor Building Access Opening for T Rl18 OSTG replacement, observation of the lower end anchorages identified that some of the tendon wire button heads were not fully seated.The following vertical tendons were found with the following button heads not fully seated on the bottom anchor head: V-134: four button heads and one surveillance wire V- 135: five button heads and one surveillance wire V-136: two button heads and one surveillance wire V-137: two button heads and one surveillance wire V-138: five button heads and one surveillance wire Engineering has been requested to evaluate these conditions for acceptability, past operability, and evaluation for additional inspections and extent of condition.

The scope of this evaluation is to include the past operability of the vertical Reactor Building tendons due to unseated button heads and the extent of condition.

The surveillance wires noted are expected to be present in the tendons, and do not carry any force. These wires are only present for surveillance purposes and are excluded from the scope of this evaluation.

Detailed Evaluation:

A search of historical surveillances revealed that the condition of unseated buttonheads has been previously identified for tendons V-137 and V-138 and is acceptable.

Tendon Acceptance criteria are given in procedure 1301-9.1 section 9.0, Acceptance Criteria.

Acceptability of the tendon and tendon stressing are given generally as the measured tendon liftoff force is above 95% of the Predicted Base Value.For the case of V-137, during the 3 0 th year surveillance four buttonheads were found unseated.

While only two buttonheads were presently noted to be unseated, it is likely that two more were unseated but not protruding enough to be noticed during this latest visual inspection by SGT. This most recent inspection did not include cleaning the corrosion protection medium off of the buttonheads and anchorhead which could mask marginally unseated buttonheads.

Tendon surveillances per procedure 3101-9.1 would entail cleaning the corrosion protection medium off the buttonheads for a more thorough inspection.

The 3 0 th year surveillance liftoff test of V-137 did yield acceptable liftoff force and thus indicates the tendon is not compromised with the unseated buttonheads.

Topical Report 204 Revion 0 Page1 of3 Attachment 8.6 Page 1 of 3 AR# 00982006 A02 The same condition was found on V-138 during the 5 th year surveillance.

Five buttonheads were found unseated and the liftoff test yielded acceptable liftoff force.These two instances of discovery of unseated buttonheads did not lead to additional inspections for extent of condition nor does the surveillance procedure direct additional inspection given the satisfactory results for liftoff force.ASME Section III, Division 2, CC-3433 Tendon System Stresses states the upper limit for stress in tendons is 73% of the material's ultimate strength.

A review of the tendon stressing cards from construction indicates the as left stress in the vertical tendons was between 70% and 73.5% of ultimate strength.Section 5.2.2.3 of the UFSAR describes the design and references the requirements for the pre-stressed tendons. Each tendon is made up of 169 wires 0.25" in diameter.

The material specification of the tendon wires is ASTM A 421-65T, Type BA. This specifies a minimum ultimate strength of 240,000 psi for the material strength.

Assuming that up to five wires are no longer effective on each tendon, the calculated upper stress limit of 73% of the ultimate strength would be: 169 wires -5 = 164 wires ((0.125 in)2

• 7r)

• 164 wires 8.05 in 2 73%

• 240 ksi = 175.2 ksi 175.2 ksi

• 8.05 in 2 = 1410 kips This is only a 3% reduction in the tendon's force carrying limit. The last measured liftoff forces during the surveillances for V-137 and V-138 were 1218 and 1211 kips respectively.

These values are considered acceptable as they are not only within 95% of their predicted values of 1185 and 1235 kips, but exceed the acceptance criteria.

These values are also below the upper stress limit assuming up to 5 wires are no longer effective.

A review of the Tendon Stressing Cards from plant construction for all the tendons in question shows that the as left stressing on all the tendons were within 50 kips of each other.Because the stress in tendons V-137 and V-138 is well below the upper limit with 5 non-effective wires, the acceptable results of the surveillances of these two tendons, and the comparatively close spread of force as left at construction between all the tendons in question, it is reasonable to assume that tendons V-134 through V-136 are in similar satisfactory condition and would meet or exceed their acceptance criteria if measured.From a future work standpoint, there are instructions in the tendon surveillance procedure which give tendon stressing values as a function of the number of effective wires, thus providing guidance for tendons with less than 169 effective wires from being overstressed during tensioning activities.

Topical Report 204 Revion 0 Page 2 of 3 Attachment 8.6 Page 2 of 3 AR# 00982006 A02 Results and

Conclusions:

Based on the previous surveillances and evaluation of V-137 and V-138, it is likely the conditions of the other vertical tendons in question are satisfactory and no additional action is necessary.

The condition of unseated buttonheads is not uncommon especially at the fixed end of single end stressed tendons which are bent around obstructions such as equipment hatch openings.

Ryerson Post -Tensioning Drawings P5-15 and P5-25 show that all the affected tendons are routed around the equipment access opening. Such routing can lead to binding and additional friction force acting on the tendon wires. Additionally, vertical tendons are only stressed from the top which increases the likelihood that buttonheads may not fully seat on the bottom anchorhead.

References:

TMI Procedure 1301-9.1 ASME Section III, Division 2 TMI UFSAR Ryerson Post-Tensioning Drawings P5-15 and P5-25 TMI Tendon Stressing Cards (Containment Construction)

TMI Unit 1 5 th and 3 0 th year Containment Tendon Surveillance Reports TMI Vendor Manual VM-TM-2485 Topical Report 204 Revion 0 Attachment 8.6 Page 3 of 3 Page 3 of 3 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: i DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION

& e[ a PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear DOCUMENT COVER SHEET Document No: TM-N1063-500 Title: Final Report for the Three Mile Island Unit I -2010 Augmented IWL Surveillance PREPARED BY: David Maldonado REVIEWED BY: Brian Giometti APPROVED BY: Christopher Cox 0 INITIAL ISSUE DJM 2/22/11 BAG 2/22/11 CEC 2/22/11 REV Prepared Date Reviewed Date Approved Date REV DESCRIPTION NO SIGN OFF REVISIONS Topical Report 204 Revion 0 Attachment 8.7 Page 1 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: "In DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION L_ & e(n PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear ABSTRACT The purpose of this report is to present the results of the TMI Unit 1 -2010 Year Augmented In-Service Inspection of the containment structure post tensioning tendons affected by the 2009 Steam Generator Replacement Project (SGRP). The results of this investigation are discussed in detail in the body of this report and are summarized as follows: 1. The sheathing filler (grease) samples were tested and found to have acceptable levels of water-soluble ions (Chlorides, Nitrates and Sulfides).

The moisture contents were all below the acceptable limit of 10% water by weight. All neutralization numbers were acceptable.

2. No tendons showed presence of water during the removal of the grease cap, during anchorage inspection or during detensioning.

Acceptable corrosion levels, if any, were found on all tendon ends and no cracks were found on any anchorage components.

3. The initial inspection of vertical tendon V1i18 revealed two protruding buttonheads (0.100").After V1 18 was detensioned, these two protruding wires were discovered to be broken and were removed. As a result of the discovery of the two broken wires found in V1i18, a continuity test was performed on 100% of the remaining tendon wires. The two wires removed were submitted to the utility for further examination and testing. Additionally, the two tendons adjacent to V1 18 were inspected to assess extent of condition.

No other protruding/missing buttonheads were detected on any of the inspected tendon ends, aside from those removed for testing or previously reported.4. A detailed visual inspection was performed on the 24" of concrete surrounding the bearing plate of each tendon end inspected.

No recordable indications were noted during these examinations.

5. Thread measurements were taken to ensure that the external threads of inspected tendon anchorages meet the minimum strength requirement of 120% of the minimum Guaranteed Ultimate Tensile Strength (GUTS) of the tendon, when coupled with a specific stressing adaptor. All measurements were within the acceptable ranges.6. The hydraulic jacks used for liftoffs, detensioning and retensioning of tendons were calibrated and found to be within an acceptable variation of +/- 1.5% as calculated using the minimum ultimate strength of the tendon.7. All of the tendons monitored for forces this inspection period were found to have forces greater than 95% of the corresponding predicted force. The as-found group averages were above the required minimum design force levels.8. Sample wires were removed from one tendon in each group for physical testing. All tendon test wire samples had acceptable diameters, corrosion levels, yield stress, ultimate stress, and elongation results.9. The detensioned tendons were retensioned with acceptable elongations and to acceptable force levels.10. A comparison of as-found force levels to the 2009 force levels was made in an effort to detect any evidence of system degradation.

The force losses since the 2009 installation for each tendon group are reported as: 3.57% for the hoop tendons and 5.48% the vertical tendons.11. All inspected tendons were resealed and regreased to acceptable levels.12. A general visual inspection was performed on the accessible exterior concrete surfaces of the containment building near the tendons affected by the 2009 SGRP and the concrete repair of the SGRP construction opening. The results of the inspection are included in APPENDIX H of this document and will be evaluated by the utility.Based on the data gathered during the TMI Unit 1 -1 st Year Augmented In-Service Inspection of the tendons affected by the 2009 SGRP and reported herein, the conclusion is reached that no abnormal degradation of the tendon group affected by the 2009 SGRP has occurred.Topical Report 204 Revion 0 Attl,+hmont R 7 P..no, 9 nf R£29, Attachment 8 7 Pa e 2 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: iii DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION

& eiun.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear TABLE OF CONTENTS DOCUMENT COVER SHEET ABSTRACT i!TABLE OF CONTENTS iii

1.0 INTRODUCTION

1 Table 1-1: TMI Unit 1 -2010 Year Augmented Tendon Inspection Scope 1 2.0 SURVEILLANCE PROCEDURES 2 3.0 SHEATHING FILLER ANALYSIS 3 Table 3-1: Laboratory Analysis of Sheathing Filler 3 4.0 ANCHORAGE COMPONENTS 4 Table 4-1: SQ6.0 -Grease Cap Removal 4 Table 4-2: SQ6.1 -Inspection for Water 5 Table 4-3: Detailed Anchorage Inspection 7 Table 4-4: Buttonhead Count 8 Table 4-5: Detailed Concrete Inspection

-Surveillance Tendons 9 Table 4-6: TMI -Fall 2010 Containment Concrete VT-iC or VT-3C Visual Examination 10 Table 4-7: TMI -Fall 2010 Containment Concrete VT-1 C or VT-3C Visual Examination 11 Table 4-8: SQ7.1 -Thread Measurements 12 5.0 HYDRAULIC JACK CALIBRATIONS 13 Table 5-1: Hydraulic Jack Calibrations 13 6.0 TENDON LIFTOFFS 14 Table 6-1: SQ9.0 -Monitoring Tendon Force 15 Table 6-2: SQ9.0 -Tendon Group Force Averages 15 7.0 WIRE INSPECTION AND WIRE TESTING 16 Table 7-1: SQ10.2 & SQ10.3 -Visual Inspection And Tensile Testing Of Wires 16 8.0 TENDON RETENSIONING AND RESEALING 17 Table 8-1: Retensioning 17 Table 8-2: As-Left Shim Stacks 17 Table 8-3: SQ12.0 -Grease Cap Replacement 19 Table 8-4: SQ1 2.1 -Grease Loss vs. Grease Replacement 20 9.0 COMPARISON WITH ORIGINAL INSTALLATION DATA 21 Table 9-1: Comparison with Original Installation Data 21

10.0 CONCLUSION

22 11.0 REFERENCE DOCUMENTS 24 Topical Report 204 Revion 0 Attachment 8.7 Page 3 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: iv DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 APPENDICES NO. OF PAGES APPENDIX A: Surveillance Data Sheets 133 APPENDIX B: Laboratory Analysis Of Sheathing Filler 11 APPENDIX C: Jack Calibrations 21 APPENDIX D: PSC Surveillance Procedures 179 APPENDIX E: TMI Surveillance Procedures 130 APPENDIX F: Gauge Calibration Sheets 5 APPENDIX G: Correspondence 5 APPENDIX H: General Exterior Concrete Exam 11 Topical Report 204 Revlon 0 Attachment 8.7 Page 4 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 1 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION X&fl.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear

1.0 INTRODUCTION

1.1 This report details the TMI Unit 1 -2010 augmented IWL surveillance of the tendons affected by the 2009 Steam Generator Replacement Project (SGRP). The tendons affected by the 2009 SGRP are those that were either replaced or retensioned as a result of the SGRP. The augmented surveillance program is a systematic means of assessing the quality and structural performance of the post tensioning system affected by the 2009 SGRP.1.2 The augmented IWL surveillance program consists of a periodic inspection of the condition of a selected group of tendons chosen from the SGRP affected tendons and the SGRP construction opening concrete repair. This program provides confidence in the condition and functional capability of the system, and an opportunity for timely corrective measures if adverse conditions are detected.

The 2010 augmented surveillance at TMI Unit 1 began on October 19, 2010 and ended on October 27, 2010. This surveillance period consisted of a physical inspection of the post tensioning system and a visual inspection of the concrete repair. Physical tendon surveillance consists of: sheathing filler inspection and testing, inspection for water, thread measurement, anchorage inspection, concrete inspection around inspected tendons, force monitoring, inspection and tensile testing of removed wire samples (for detensioned tendons), retensioning of detensioned tendons and replacement of sheathing filler after completion of all inspections.

1.3 The TMI Unit 1 -2010 Augmented Tendon Surveillance was performed in accordance with the requirements of the American Society of Mechanical Engineers, Boiler and Pressure Vessel Code, Section Xl, Subsection IWL, 2004 Edition and the applicable amendments as specified in 10CFR50.55a, Codes and Standard.

PSC Surveillance Procedures, TMI Procedure 1301-9.1, the Code of Federal Regulations 10CFR50.55a, and ASME Section Xl, Sub-Section IWL define the specific requirements for selection of the inspection tendons as well as acceptance criteria for the performance of the tendon and concrete inspections.

A copy of the PSC Surveillance Procedures is included in APPENDIX D of this report, and a copy of the TMI Surveillance Procedures is included in APPENDIX E of this report. The scope for the 2010 surveillance was provided by Exelon and is summarized in Table 1-1.1.4 As a result of the discovery of two broken wires in tendon V1i18, Exelon requested that PSC remove the tendon grease caps of the adjacent tendons (V1i17 and V1i19) in order to examine the adjacent tendon anchorages for similar conditions (expanded scope).H46-39 BT 6 & BT 4 0 0 0 0 0 0 Ol.lO I S DETENSION H46-41 BT 6 & BT 4 .0 0 .0 0 0 V117 TOP & BOT 0 ..SEE 1.4 V1 18 TOP & BOT DETENSION V119 TOP & BOT SEE 1.4 V134 TOP & BOT LEGEND SQ 6.0 -GREASE CAP REMOVAL 1301-9.1 -MONITOR TENDON FORCES (IWL Item L2.20)SQ 6.1 -INSPECTION FOR WATER (IWL Item L2.50) and RETENSION TENDONS SQ 7.0 -GREASE SAMPLE ANALYSIS (IWL Item L2.40) SQ 10.2- TENDON WIRE INSPECTION (IWL Item L2.20)SQ 7.1 -THREAD MEASUREMENT SQ 10.3 -TESTING TENDON WIRES (IWL Item L2.20)VT-1 / VT-1C -AS PER ER-AA-335-018 SQ 12.0 -GREASE CAP REPLACEMENT (IWL Items L2.40, L1.10, L1.11 and Ll1.12) SQ 12.1 -GREASE REPLACEMENT Attachment

8.7 Paae5of

523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 2 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION Exel n.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 2.0 SURVEILLANCE PROCEDURES APPENDIX D and APPENDIX E of this Surveillance Report contain the detailed procedures for conducting the tendon surveillance.

The surveillance consists of the following steps: 2.1 Grease cap removal and visual examination of sheathing filler (grease).2.2 Analytical testing of sheathing filler (grease) samples.2.3 Examination for the presence of water.2.4 Inspection of the anchorage assembly and concrete within 2' of the bearing plate of each surveillance tendon end for deleterious conditions such as corrosion, cracks, broken or missing wires or buttonheads.

2.5 Thread

measurement for each tendon that is monitored for force.2.6 Measurement of the liftoff force for each physical surveillance tendon.2.7 Removal of one wire from surveillance tendons which are detensioned for examination and testing.2.8 Retensioning of detensioned tendons and measuring of the corresponding tendon elongation.

2.9 Visual

inspection for corrosion, pitting, or any significant physical change of the removed wires.2.10 Testing of samples taken from wires removed from tendons for yield strength, ultimate strength, and percentage elongation at failure 2.11 Resealing tendon caps and replacement of lost sheathing filler (grease) into the tendon duct and cap.2.12 Evaluation of test and inspection results to assess the general condition of the SGRP affected tendons.2.13 Examination of the construction opening repair and the tendon end anchorages of the SGRP affected tendons.Swingstages were hung from Upper Support Frames in order to ...access the tendons for inspection, .and a mast and jib assembly was erected to raise and lower the necessary inspection equipment.

iort 204 Revion 0 8.7 Page 6 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 3 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION

&fl.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 3.0 SHEATHING FILLER ANALYSIS 3.1 Two samples (one from each end) of sheathing filler (grease) were removed from each of the surveillance tendons. Chemical tests were performed on a sample from each end by Suburban Laboratories, Inc. The results of the tests are presented in APPENDIX B and are summarized in Table 3-1.3.2 The maximum acceptable test limits are: 3.2.1 Maximum 10 parts per million for water-soluble chlorides, nitrates and sulfides.

All of the samples tested met these acceptance criteria.3.2.2 Maximum 10 percent by weight for water content. All of the samples tested met this requirement.

3.2.3 Reserve

Alkalinity (Base Number) greater than 0 mg KOHIg for original tendons (VI 18 and H46-41) and greater than 17.5 mg KOHIg for replacement tendons (V134 and H46-39). The acceptance criteria for reserve alkalinity is determined by Table IWL-2525-1 and further explained and clarified by TMI Surveillance Procedure 1301-9.1, Revision 21. The tendon ducts of replaced tendons were cleared of old CPM following original tendon removal. The reserve alkalinity is reported on the grease sample testing results as the Neutralization Number. All the grease samples tested had Neutralization Numbers greater than 17.5 mg KOH/g and are acceptable.

3.2.4 No grease samples were taken for vertical tendons V1 17 and V1 19 (expanded scope for visual inspection only).H46-39 SHOP/BT6 FIELD / BT 4<0.50<0.50<0.50<0.50<0.500<0.500<0.10<0.10 73.6 71.2 SHOP/BT6 <0.50 <0.50 <0.500 <0.10 74.0 H46-41 FIELD / BT 4 <0.50 <0.50 <0.500 <0.10 71.3 SHOP / TOP <0.50 <0.50 <0.500 0.19 68.1 V1 18 FIELD / BOT <0.50 <0.50 <0.500 <0.10 65.1 SHOP/TOP <0.50 <0.50 <0.500 <0.10 70.8 V134 FIELD / BOT <0.50 <0.50 <0.500 <0.10 63.3 ACCEPTANCE LIMITS TEST WATER SOLUBLE CHLORIDE WATER SOLUBLE NITRATES WATER SOLUBLE SULFIDES WATER CONTENT NEUTRALIZATION NUMBER LIMITS LESS THAN 1OPPM LESS THAN 1OPPM LESS THAN 1OPPM LESS THAN 10% DRY WEIGHT GREATER THAN 0 or 17.5 mg KOH/g** See 3.2.3 Above Topical Report 204 Revion 0 Attachment 8.7 Page 7 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 4 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION ExeUon.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 4.0 ANCHORAGE COMPONENTS In the following discussion, all procedures referred to are included in APPENDIX D of this report and all data sheets are included in APPENDIX A.4.1 SQ6.0 -GREASE CAP REMOVAL 4.1.1 Inspection of the anchorage components began by removing the grease cap of each surveillance tendon end (PSC Procedure SQ 6.0). Complete grease coating (100%) was found on all tendon ends inspected.

The percentage of grease coverage for each anchorage component was recorded on Data Sheet SQ 6.0 with the results tabulated in Table 4-1.H46-39 SHOP/BT6 100 100 100 100 100 100 100 100 100 100 FIELD / BT 4 SHOP/BT6 100 100 100 100 100 H46-41 FIELD / BT 4 100 100 100 100 100 SHOP/TOP 100 100 100 100 100 V 17 FIELD / BOT 100 100 100 100 100 SHOP/TOP 100 100 100 100 100 V11 8 FIELD / BOT 100 100 100 100 100 SHOP/TOP 100 100 100 100 100 V1 19 FIELD / BOT 100 100 100 100 100 SHOP/TOP 100 100 100 100 100 V1 34 FIELD / BOT 100 100 100 100 100 The first step in the inspection I is to remove the grease cap. I I

• I-ttcReport 204 Revion 0 Attachment 8.7 Page 8 of 523 7 DOCUMENT NUMBER: DOCUMENT TITLE: PROJECT TITLE: TM-N1063-500 REVISION:

0 FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION TMI AUGMENT ED TENDON SURVEILLANCE 4.2 SQ6.1 -INSPECT FOR WATER 4.2.1 Throughout the inspection process, the presence of water on any anchorage components is monitored.

Water Inspections were recorded on Data Sheet SQ 6.1 and are summarized in Table 4-2.4.2.2 No water was observed during the cap removal or at any time during the inspections for all the grease caps removed.H46-39 SHOP / BT 6 FIELD / BT 4 0 0 V1 18 SHOP/TOP FIELD / BOT 0 0 SHOP/BT6 0 H46-41 FIELD / BT 4 0 I SHOP/TOP 0 V119 i FIELD / BOT 0 V1 17 SHOP/TOP FIELD / BOT 0 0 V134 SHOP/TOP FIELD / BOT 0 0 I I~I i The QC Inspector checks for proper grease coverage and for the presence of water inside the grease cap or around the anchorage.

Topical Report 204 Revion 0 Attachment 8.7 Paae 9 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 6 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION Exeuun.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear Grease samples are collected at every inspected tendon end and sent to the lab for further testing.Topical Report 204 Revlon 0 Attachment 8.7 Page 10 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 7 7 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION

& ei~n.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 4.3 ANCHORAGE VISUAL EXAMINATION 4.3.1 A detailed visual examination was performed on all of the anchorage components (anchorhead, buttonheads, bushing, shims and bearing plate) of each surveillance tendon end for recordable indications as outlined in Exelon Procedure ER-AA-335-018, which is included in APPENDIX E.The results were recorded on Data Sheet ER-AA-335-018, Attachment 5 and the As-Left conditions are summarized in Table 4-3.4.3.2 The initial inspection of the shop end of vertical tendon V1 18 revealed two wires protruding 0.10 inches, which were later found to be broken when V1 18 was detensioned.

The two broken wires were removed and returned to TMI Engineering for analysis and testing. A test wire was also removed as scheduled, which was inspected and tested by PSC. A Wire Continuity Test was performed on 100% of the remaining wires in V1i18 and verified continuity of the these wires. The data sheets for the continuity test can be found in APPENDIX A of this report. The acceptance of tendon V1 18 will be based on the additional investigation, including the continuity test and evaluation performed by TMI.4.3.3 The rest of the observations made were information only and consist of light inactive rust on the shims and anchorhead, and bushing, previously reported missing buttonheads and/or wires, or test wires which were removed.H46-39 SHOP/BT6 FIELD / BT 4 EX4W4/AB7W7 FY19R19 A A 1 Wire removed for testing this surv.1 Wire removed for testing this surv.SHOP / BT 6 909/AB5W5 X H46-41 FIELD / BT 4 971 B 2 Missing buttonheads, previously reported SHOP/TOP 812/581 X V 17 FIELD / BOT 739 X A 3 missing wires -1 removed for testing SHOP / TOP 793/578 and 2 noted as protruding in as found exam were found to be broken when V118 tendon was detensioned.

D 2 Broken wires pulled for testing FIELD / BOT A 1 Wire removed for testing this surv SHOP ITOP 817/1097 F Inactive corrosion on surface of bushing.No pitting.V1 /9 A 1 wire missing, previously reported FIELD / BOT 885 F Light rust on anchorhead and shims SHOP / TOP EX7W7/1058 X V134 FIELD / BOT FY27R27 X NI -NO INDICATIONS RI -RECORDABLE INDICATION 10 -INFORMATION ONLY A -Missing Wires B -Missing Buttonheads C -Protruding

/ Unseated Wires D -Broken Wires E -Active Corrosion F -Other Corrosion G -Evidence of Free Water (Quantify)

• Refer to Datasheets in APPENDIX A for detailed As-Found results H -Cracks I -Pitting J -Nicks, Gouges, Mechanical Damage K -Uneven Shim Stack L -Excessive Shim Gaps M -Gasket Seating Surface Damage N -Surface Discontinuities, Deflections 0 -Other (Explain)Topical Report 204 Revion 0 Attachment 8.7 Page 11 of 523 I DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 8 E n DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION Exe n.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 4.4 4.4.1 BUTTONHEAD COUNT An inspection for protruding and missing buttonheads was performed on each surveillance tendon end and documented per TMI Procedure 1301-9.1 Revision 21 -Tendon Buttonhead Inspection.

This inspection is performed to acquire information on the function of the tendon since the original installation or previous surveillance.

A missing and/or protruding buttonhead decreases the amount of effective wires in the tendon. The results of these inspections are recorded on Enclosure 6, Data Sheet 4 from TMI Procedure 1301-9.1 and are summarized in Table 4-4.4.4.2 The initial inspection of vertical tendon V118 revealed two protruding buttonheads (0.10"). After V1i18 was detensioned, these two protruding wires were found to be broken and were removed.No other protruding/missing buttonheads were detected on any of the inspected tendon ends, aside from those removed for testing or previously reported.H46-39 SHOP / BT 6 FIELD / BT 4 0 0 0 0 0 0 0 0 0 0 1 0 0 1 SHOP/BT6 0 0 0 0 0 0 0 H46-41 FIELD / BT 4 0 2 0 2 0 2 0 SHOP/TOP 0 0 0 0 0 0 0 V 17 FIELD / BOT 0 0 0 0 0 0 0 SHOP/TOP 0 0 2 0 0 2 1 V1 18 FIELD / BOT 0 0 0 0 0 2 1 SHOP/TOP 0 1 0 1 0 1 0 V1 19 FIELD / BOT 0 1 0 1 0 1 0 SHOP/TOP 0 0 0 0 0 0 0 V1 34 FIELD / BOT 0 0 0 0 0 0 0 I IS)i Any protruding, missing, or broken buttonheads found during the anchorage inspection were recorded on Enclosure 6, Data Sheet 4.The Field end of tendon H46-41 had two previously reported missing buttonheads DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 9 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION Ex iFl.7 PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 4.5 DETAILED CONCRETE EXAMINATION 4.5.1 A detailed visual examination (VT-1C) was performed on the 24" around the bearing plate of each surveillance tendon end in accordance with Exelon Procedure ER-AA-335-018.

The results were recorded on Exelon Procedure ER-AA-335-018, Attachment 6 and are summarized in Table 4-5.None of the inspected tendon ends exhibited concrete cracks exceeding 0.010" around any bearing plate inspected.

H46-39 SHOP/BT6 FIELD / BT 4 o long stress uraErK extenuing verIc top right comer of the bearing plate x SHOP/BT6 X H46-41 FIELD / BT 4 X SHOP/TOP X V1 17 FIELD / BOT X SHOP/TOP X FIELD / BOT X SHOP/TOP X VI 19 A Crack from corner of bearing plate to containment FIELD / BOT 19" long < 0.010" wide A From adjacent corner to outer wall 7.5" long I < 0.010" wide SHOP/TOP X V1 34 FIELD / BOT X A.B.C.D.E.F.NI -NO INDICATIONS Cracks (Characterize and Size)Exposed Reinforcing Steel Exposed Metallic Items (Other)Evidence of Grease Leakage Evidence of Moisture Leaching or Chemical Attack RI -G.H.I.J.K.L.RESULTS LEGEND RECORDABLE INDICATION Settlements of Deflections Degraded Patches or Repairs Popouts, Voids, Honeycomb Spalls Cold Joint Lines Corrosion Staining 10 -INFORMATION ONLY M. Scaling / Dusting N. Coating Deterioration

0. Abrasion, Cavitation, Wear P. Air Voids / Bug Holes Q. Efflorescence R. Other (Explain)Topical Report 204 Revion 0 Attachment 8.7 Page 13 of 523 r DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 10 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION L eion.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 4.6 GENERAL CONCRETE EXAMINATION 4.6.1 A general visual (VT-3C) examination was performed on the containment repair and around the end anchorages of the 75 tendons affected by the repair, i.e. SGRP. The results of these examinations are summarized in APPENDIX H and summarized in Table 4-6 and Table 4-7.A Stress cracks none > 0.015" TENDON GALLERY BASE MAT FROM V113 TO V157.NOTE: THIS VT-3C EXAM IS BEING DONE ON THE TENDONS DETENSIONED AND/OR REPLACED DURING THE SGR.NOTE: ALL CONDITIONS LISTED ARE AS PREVIOUSLY REPORTED, NO CHANGE.Q Efflorescence on inner and outer walls at base mat.C & Degraded grout patches with exposed metal that appears to be H abandoned trumpets at various locations between bearing plates and inner wall with active corrosion.

C Exposed embed plate adjacent to V1i13 w/active corrosion and pitting < 0.010" deep.N Concrete surfaces coated with sealant are peeling in areas throughout gallery.B Exposed rebar adjacent to V143 B Exposed rebar adjacent to V149 DOME AREA TENDON TRENCH R Spall in trench wall, previously reported, repaired and stable FROM V113 TO V157 R Bearing plates with corrosion, previously reported, repaired and NOTE: THIS VT-3C EXAM IS stable.BEING DONE ON THE TENDONS DETENSIONED AND/OR REPLACED DURING THE SGR.NOTE: ALL CONDITIONS LISTED ARE AS PREVIOUSLY REPORTED, NO CHANGE.BUTTRESS 5 A Small cracks NOTE: THE FACE OF BUTTRESS H Degraded grout patches 5 IS INACCESSIBLE DUE TO COVERAGE BY A VENTILATION L Oil stains STACK.P Small bugholes NOTE: ALL GENERAL AREA -Small -CONDITIONS PREVIOUSLY C Exposed embed plates REPORTED, NO CHANGE Abandoned 3/4" anchor bolt 1 ft. from the left side, 3' down from OPENDING PATCH AND JOINING the top corner of the construction opening.CONCRETE BETWEEN K Rough finish on the cold joint lines at the top of the construction BUTTRESS 5 AND BUTTRESS 6 opening patch.NOTE: NO CRACKS FOUND IN R Rough finish on the grout patch at the bottom 1/3 of the construction opening patch.CONST. OPENING PATCH OR-ADJOINING CONCRETE.

R

• The patch is coated with curing compound.

It is transparent I__ IIIand does not limit the exam.RESULTS LEGEND NI -NO INDICATIONS RI -RECORDABLE INDICATION S. Cracks (Characterize and Size) Y. Settlements of Deflections T. Exposed Reinforcing Steel Z. Degraded Patches or Repairs U. Exposed Metallic Items (Other) AA. Popouts, Voids, Honeycomb V. Evidence of Grease Leakage BB. Spalls W. Evidence of Moisture CC. Cold Joint Lines X. Leaching or Chemical Attack DD. Corrosion Staining 10 -INFORMATION ONLY EE. Scaling / Dusting FF. Coating Deterioration GG. Abrasion, Cavitation, Wear HH. Air Voids / Bug Holes I. Efflorescence JJ. Other (Explain)Topical Report 204 Revlon 0 A 7 D.n. 1A M, R01 DOCUMENT NUMBER: TM-N1063-500 DOCUMENT TITLE: FINAL REPORT PROJECT TITLE: TMI AUGMENT FOR THE 2010 AUGMENTED IWL INSPECTION ED TENDON SURVEILLANCE A Small cracks BUTTRESS 6 NOTE: ALL GENERAL AREA CONDITIONS PREVIOUSLY REPORTED, NO CHANGE H Degraded grout patches L Oil stains P Small bugholes C Exposed embed plates A Small cracks BUTTRESS 4 H Degraded grout patches NOTE: ALL GENERAL AREA -CONDITIONS PREVIOUSLY L Oil stains REPORTED, NO CHANGE -P Small bugholes A Small cracks BUTTRESS 1-H Degraded grout patches NOTE: ALL GENERAL AREA -CONDITIONS PREVIOUSLY L Oil stains REPORTED, NO CHANGE -P Small bugholes A General area conditions

-shrinkage cracks < 0.040", degraded H grout patches on form tie holes, and small bug holes p unchanged.

3 areas with degraded grout patches between buttress 5&6 32" below ring girder, cold joint adjacent to H53-43 6" from the left side of buttress 5, and 2'x5' area 12' above the equipment hatch OUTER SURFACE OF THE enclosure area unchanged.

CONTAINMENT BUILDING WALL BETWEEN Exposed embed plates 4" wide 2' from left side of buttress 5 and BUTTRESS 5 & 6 INCLUDING C 2' from right side of buttress 6 from the ring girder down, have SGR CONSTRUCTION surface rust with no pitting and degraded grout patches.OPENING PATCH. Unchanged from previous exam.Abandoned 3/4" anchor bolt 1 foot from the left side and 3' down from top corner of SGR construction opening patch K Rough finish on cold joint lines at the top of the construction opening patch R Rough finish on grout patch at the bottom of 1/3 of const.opening patch.Abandoned 3/4" anchor bolt 1 foot from the left side and 3' down DETAILED INSPECTION C from top corner of SGR construction opening patch (VT-1RC) OF Rough finish on cold joint lines at the top of the construction SGR CONSTRUCTION K opening patch OPENING PATCH AND -opngpac JOINING CONCRETE R Rough finish on grout patch at the bottom of 1/3 of const.BETWEEN BUTTRESS 5 & 6 onenino natch, R

• The patch is coated with curing compound it is transparent and I_ I does not limit the exam.A.B.C.D.E.F.NI -NO INDICATIONS Cracks (Characterize and Size)Exposed Reinforcing Steel Exposed Metallic Items (Other)Evidence of Grease Leakage Evidence of Moisture Leaching or Chemical Attack RESULTS LEGEND RI -RECORDABLE INDICATION G. Settlements of Deflections H. Degraded Patches or Repairs I. Popouts, Voids, Honeycomb J. Spalls K. Cold Joint Lines L. Corrosion Staining 10 -INFORMATION ONLY M. Scaling / Dusting N. Coating Deterioration

0. Abrasion, Cavitation, Wear P. Air Voids / Bug Holes Q. Efflorescence R. Other (Explain)Topical Report 204 Revion 0 Attachment 8.7 Page 15 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 12 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION , & e n.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 4.7 4.7.1 SQ 7.1 ANCHORHEAD THREAD MEASUREMENT Thread measurements were taken to assure that the external threads of inspected tendon anchorages meet the minimum strength requirement of 120% of the minimum Guaranteed Ultimate Tensile Strength (GUTS) of the tendon, when coupled with a specific Stressing Adaptor.The results were recorded on Datasheet SQ7.1 and are summarized in Table 4-8.All measurements taken were in within acceptable limits.In Table 4-8, "N/A" indicates no thread measurements were taken because stressing was not performed at that end.4.7.2 4.7.3 H46-39 SHOP / BT 6 FIELD / BT 4 EX4W4/AB7W7 FY19R19 9.373 9.369 9.259 9.254 9.191 9.188 C6002 C6001 8.638 8.612 YES YES SHOP / BT 6 909/AB5W5 9.371 9.262 9.195 C6002 8.619 YES H46-41 D2 8.663 YES FIELD / BT 4 971 9.371 9.241 9.185 C6001 8.631 YES C6002 8.657 YES SHOP/TOP 793/578 9.372 9.254 9.184 D2 8.682 YES V1 18 FIELD / BOT N/A N/A N/A N/A N/A N/A YES SHOP / TOP EX7W7/1058 9.372 9.284 9.185 D2 8.645 YES V134 FIELD / BOT N/A N/A N/A N/A N/A N/A YES Thread measurements were taken at every tendon end that underwent a physical inspection.

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16 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 13 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION

& ei4fl.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 5.0 HYDRAULIC JACK CALIBRATIONS

5.1 Precision

Surveillance Corporation has developed a program for calibrating hydraulic jacks utilizing regression analysis (PSC Procedure QA 12.8.G-W).

This is a process where a straight line is mathematically best fit to a set of data points (in this case, force versus gauge pressure).

This results in a linear equation which relates the ram area (slope) and constant (y-intercept) for each jack calibration, allowing the conversion of pressure to force and vice versa. Completed calibrations for all of the hydraulic jacks used are contained in APPENDIX C and are summarized in Table 5-1.5.2 A before and after comparison of the stressing jacks' ram areas revealed that none of the hydraulic jacks' calibrations varied by more than 0.425%, indicating that they were in a properly calibrated status throughout the surveillance.

Acceptable variation is 1.5%. The percent variation is obtained by comparing the pressure calculated from the calibration data at the minimum ultimate tensile strength of the tendon, as noted.5.3 Note that the force exerted by a jack can be calculated as follows: Force = Area x Pressure + Constant (K) (in 2)(KSI)(K)Hydraulic jacks are used to determine the amount of force being held by a tendon.Topical Report 204 Re vion 0 Afftthm-nf A 7 D. .17 nM 89q DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 14 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 6.0 TENDON LIFTOFFS 6.1 MONITOR TENDON FORCES 6.1.1 A liftoff is defined as the force required to transfer the load on a tendon from the shim stack to the stressing ram and is representative of the force held by that tendon. A liftoff is performed on each surveillance tendon to monitor the force exerted by the tendon onto the containment structure.

TMI procedure 1301-9.1 details the steps taken to perform a liftoff. The results were documented on Data Sheets 1, 2 and 5 from TMI Procedure 1301-9.1 and are summarized in Table 6-1.6.1.1.1 It should be noted that performing a liftoff has only a localized effect on a tendon; therefore, it is acceptable to use the same jack for both ends of a tendon by executing the liftoff on separate occasions.

6.1.2 According

to ASME, Section Xl, subsection IWL-3221.1 ,Tendon forces are acceptable if: (a) the average of all measured tendon forces, including those measured in IWL-3221. 1(b)(2), for each type of tendon is equal to or greater than the minimum required prestress specified at the anchorage for that type of tendon.(b) The measured force in each individual tendon is not less than 95% of the predicted force unless the following conditions are satisfied.

(1) The measured force in not more than one tendon is between 90% and 95% of the predicted force.(2) The measured forces in two tendons located adjacent to the tendon in IWL-3221. 1(b)(1) are not less than 95% of the predicted forces.(3) For tendons requiring augmented examination in accordance with Table IWL-2521-2, Item L2-10, the measured forces in two like tendons located nearest to but on opposite sides of the tendon described in IWL-3221-1(b)(1) are not less than 95% of the predicted force.(4) The measured forces in all remaining sample tendons are not less than 95% of the predicted force.6.1.3 All of the as-found tendon lift-off forces were above the 95% Predicted Base Value (Predicted Force) as required by IWL-3221.1.(a) and are acceptable.

The actual values for each tendon are summarized in Table 6-1.6.1.4 The average of the as-found tendon lift-off forces for each tendon group is compared to the corresponding minimum average (minimum design) tendon force. The comparison is summarized in Table 6-2. Both the hoop and vertical tendon group averages were above their minimum design values. Normalization factors are not used for tendons affected by the repair due to the fact that there is no normalization factor used in the SGRP tendon stress calculations.

Topical Report 204 Revion 0 Attachment 8.7 Page 18 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 15 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION

& eltfl.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear H46-39 SHOP/BT6 FIELD / BT 4 7.6 8 6002 6001 1354.35 1391.09 1372.72 1316 1250 1184 YES SHOP / BT 6 8.25 6002 1342.87 H46-41 1356.78 1314 1248 1183 YES FIELD / BT 4 9.3 6001 1370.69 SHOP/TOP 16.3 9400 1365.31 V1 8 1365.31 1340 1273 1206 YES FIELD I BOT 4.1 N/A N/A SHOP/TOP 14.4 9400 1341.74 V134 1341.74 1332 1265 1199 YES FIELD/BOT 4.1 N/A N/A H46-39 SHOP/BT6 FIELD / BT 4 1354.35 1391.09 1372.72+1364.75 1108 YES H46-41 SHOP/BT6 FIELD / BT 4 1342.87 1370.69 1356.78 SHOP/TOP 1365.31 VI 18 1365.31 FIELD / BOT N/A 1353.53 1033 YES SHOP/TOP 1341.74 V134 1341.74 FIELD / BOT N/A Topical Report 204 Revion 0 Attachment 8.7 Paqe 19 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 16 E l DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION L& eun.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 7.0 WIRE INSPECTION AND WIRE TESTING 7.1 One tendon from each group (Vertical and Hoop) was completely detensioned.

A single wire was removed from each detensioned tendon for inspection and testing. Each removed wire was examined over its entire length for corrosion and mechanical damage. Samples from each wire were tested for diameter, yield strength, ultimate tensile strength and elongation at failure. PSC Procedure SQ 10.2 outlines the details and acceptance criteria pertaining to the wire inspection and testing. The test wire physical inspection data was recorded on data sheets SQ1 0.2. The tensile testing of the sample wires was performed by Exova materials testing laboratory and lAW ASTM 370. Data sheets SQ10.2 and the tensile test report by Exova can be found in APPENDIX A of this report. Table 7-1 summarizes the results of the sample wire inspection and testing.7.1.1 Wire diameter measurements were all within acceptable limits of 0.250" +/- 0.002". No mechanical damage was noted on any of the wires.7.1.2 The corrosion level for all inspected test wires was: 1 -No visible corrosion Which is an acceptable corrosion level.7.1.3 The ultimate strength of the wires exceeded the minimum strength criteria of 240ksi on all test samples. The lowest recorded ultimate strength was 246.200ksi.

7.1.4 All test wire samples had acceptable elongation at failure. The recorded elongation values on the samples varied from 4.5% to 5.9%.YES 1 1 0-10 0.250 236.200 267.000 H46-39 2 3 1 1 60-70 0.250 0.250 238.600 233.200 269.900 267.400 5.6 4.6 YES YES 140-150 1 1 0-10 0.250 212.900 247.300 4.5 YES V18 2 1 90-100 0.250 207.000 246.200 5.9 YES 3 1 170-180 0.250 208.500 246.600 5.4 YES Topical Report 204 Revion 0 Attachment 8.7 Paqe 20 of 523*Location is number of feet from buttonhead end (opposite of cut end) of wire. See applicable Datasheet SQ10.2 in APPENDIX A for further information.

Topical Report 204 Revion 0 Attachment 8.7 Page 20 of 523 DOCUMENT NUMBER: DOCUMENT TITLE: PROJECT TITLE: TM-N1063-500 REVISION:

0 PAGE: 17 FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION E elon.TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 8.0 TENDON RETENSIONING AND RESEALING 8.1 TENDON RETENSIONING 8.1.1 The tendons that were detensioned for test wire removal were retensioned to a force between that predicted for the time of the surveillance and 70% GUTS as specified in IWL-2523.3.

The results of the retensioning process were recorded on Data Sheet 4 of TMI Procedure 1301-9.1 and the results are summarized in Table 8-1. In Table 8-1, "N/A" indicates restressing occurred from the opposite end only.8.1.2 According to ASME, Section Xl, subsection IWL-3221.1

.(d): Tendon forces and elongation are acceptable if the following conditions are met: (d) The measured tendon elongation varies from the last measurement, adjusted for effective wires or strands, by less than 10%.8.1.2.1 All retensioned tendons elongations were compared to the previous elongation and found to be acceptable.

8.1.3 A force versus elongation graph of each retensioning is plotted to show the comparison of retensioning compared with the previous stressing force and elongation values.8.1.4 All tendons were retensioned to acceptable force values.8.1.5 Elongation rates for the last measurement and current retensioning are used, taking into account the amount of wires removed and differential forces in order to compare the observed elongation to the 2009 elongation accurately.

H46-39 169 1388.6 10.6 11.29 1168 11379.131 10.2 11.24 1-3.88 11316 11327.7811385.441 YES V118 167 1382.7 14.0 11.69 1166 11362.921 14.0 11.71 11.18 1340 1341.74 1369.25 YESI H46-39 SHOP/W bT FIELD / BT 4 7.6, 8" 21% 11% 1.1, 1/8.1, 112.1,1.,2" 4", 1", 1/4", 1/8", 1/2',2" SHOP/TOP 17.5" 4", 4", 4", 2", 1", 1/4", 1/2", 1/2", 1" FIELD / BOT 4.1" 4" Topical Report 204 Revlon 0 Attachment 8.7 Page 21 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 18 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION E eln.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear ELONGATION FOR H46-39 12 10-o--lstYear

---Original I ý , ý ý , ! i , I , I : I -ý -9 I -C Z--z o6 (D z 04 2J 2.. ...£ _ -+I- j j I- I_IF I -~0 -0 200 400 600 800 FORCE (kips)1000 1200 1400 1600 14 12 10 0-C 8 z 0 (<6 z 0-J w 4 2 0 ELONGATION FOR V118 1st Year -a--Original i iTj 0 200 400 600 800 1000 1200 1400 FORCE (kips)1600 Topical Report 204 Revion 0 Attachment 8.7 Paae 22 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 19 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION

& ebn.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 8.2 8.2.1 SQ12.0 TENDON CAP RESEALING After completion of all inspections, the anchorage components were hand coated with cold grease to ensure complete coverage.

The caps were reinstalled with new gaskets. The results of the grease cap replacement were recorded on Data Sheet SQ 12.0 and are summarized in Table 8-3.H46-39 SHOP/BT6 FIELD / BT 4 YES YES YES YES YES YES YES YES YES YES YES YES SHOP/BT6 YES YES YES YES YES YES H46-41 FIELD/BT4 YES YES YES YES YES YES SHOP/TOP YES YES YES YES YES YES V117 FIELD / BOT YES YES YES YES YES YES SHOP/TOP YES YES YES YES YES YES FIELD / BOT YES YES YES YES YES YES SHOP/TOP YES YES YES YES YES YES FIELD / BOT YES YES YES YES YES YES SHOP/TOP YES YES YES YES YES YES VI 34 FIELD/IBOT YES YES YES YES YES YES Topical Report 204 Revion 0 Attachment

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0 PAGE: 20 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION E elon.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 8.3 SQ12.1 TENDON DUCT AND CAP RE-GREASING 8.3.1 Upon acceptable grease cap replacement, the necessary amount of sheathing filler (grease) was replaced.

All of the inspected tendons were refilled within the acceptable limits as stated in PSC Procedure SQ12.1. The results of the grease replacement were recorded on Data Sheet SQ12.1 and are summarized in Table 8-4.8.3.2 The absolute difference between the amount of grease removed/lost and the amount of greased replaced in the subject tendon shall not exceed 10% of the net duct volume per PSC Procedure SQ 12.1. This requirement was met at all tendon ends and all refills were deemed acceptable.

8.3.3 In Table 8-4, "N/A" indicates grease was added to the opposite tendon end only.H46-39 2.5 5.74 3.24 115.26 2.81 YES FIELD / BT 4 1.5 3.09 SHOP / BT 6 0.75 2.21 H46-41 2.25 4.86 2.61 114.86 2.27 YES FIELD / BT 4 1.5 2.65 SHOP/TOP 3 6.195 V117 4 6.195 2.195 129.86 1.69 YES FIELD / BOT 1 N/A SHOP / TOP 5.5 12.39 V118 11.5 12.39 0.89 129.61 0.68 YES FIELD / BOT 6 N/A SHOP/TOP 2 4.425 V1 19 3 4.425 1.425 129.60 1.09 YES FIELD / BOT 1 N/A SHOP / TOP 7 8.85 V134 8 8.85 0.85 131.62 0.64 YES FIELD / BOT 1 N/A Once the grease cans are reinstalled, grease is added back into the grease can to replace any grease lost or removed during the tendon inspection.

Topical Report 204 Revion 0 Attachment 8.7 Page 24 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 21 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION

& elOn.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 9.0 COMPARISON WITH ORIGINAL INSTALLATION DATA 9.1 A comparison of the liftoff forces from this surveillance to the SGRP installation lock-off forces for the tendons physically inspected is made in an effort to detect any evidence of system degradation.

The forces are compared in order to detect any abnormal force loss that would possibly indicate an underestimation of the creep, shrinkage and/or elastic shortening effects in the Containment Building.

This comparison is summarized in Table 9-1.9.2 The losses since the 2009 SGRP for each tendon group are reported as: 3.57% for the hoop tendons and 5.48% for the vertical tendons.H46-39 H46-41 1420.2 1410.4 1372.72 1356.78 47.48 53.62 3.34 3.80 3.57 V1 18 1448.6 1365.31 83.29 5.75 5.48 V134 1415.3 1341.74 73.56 5.20 Topical Report 204 Revion 0 Attachment 8.7 Page 25 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

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-Exeln.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear

10.0 CONCLUSION

A review of this surveillance was conducted per IWL-3221 Unbonded Post-Tensioning Systems and is outlined below: IWL-3221 Acceptance~by Examination IWL-3221.1 Tendon Force Tendon forces are acceptable if: (a) the average of all measured tendon forces, including those measured in IWL-3221.

1(b)(2), for each type of tendon is equal to or greater than the minimum required prestress specified at the anchorage for that type of tendon.Results: The as as-found group averages for each group of tendons (hoop and vertical) were all above the corresponding required minimum design force values.(b) The measured force in each individual tendon is not less than 95% of the predicted force unless the following conditions are satisfied.

(1) The measured force in not more than one tendon is between 90% and 95% of the predicted force.(2) The measured forces in two tendons located adjacent to the tendon in IWL-3221. l(b)(1) are not less than 95% of the predicted forces.(3) For tendons requiring augmented examination in accordance with Table IWL-2521-2, Item L2-10, the measured forces in two like tendons located nearest to but on opposite sides of the tendon described in IWL-3221-1(b)(1) are not less than 95%of the predicted forces.(4) The measured forces in all the remaining sample tendons are not less than 95% of the predicted force.Results: All of the hoop and vertical tendon liftoffs were found to be above their corresponding 95% Predicted Base Value (Predicted Force) and are acceptable.(c) The Prestressing forces for each type of tendon measured in IWL-3221.

1(a) and (b), and the measurement from the previous examination, indicate a prestress loss such that predicted tendon forces meet the minimum design prestress forces at the next scheduled examination.

Results: The tendon groups affected by the 2009 SGRP are at least 23.2% above their minimum design forces. Given the force levels observed during this surveillance compared to their minimum design forces, each tendon group is expected to remain well above their minimum design force until the next scheduled surveillance.(d) The measured tendon elongation varies from the last measurement, adjusted for effective wires or strands, by less than 10%.Results: All tendons which were detensioned exhibited elongations within +/-10% of their 2009 elongation values when they were restressed and are acceptable.

All of the detensioned tendons were restored to a force between the predicted force and 70% of GUTS per IWL 2523.3.IWL-3221.2 Tendon Wire or Strand Samples. The condition of wire or strand samples is acceptable if: Topical Report 204 Revion 0 Attachment 8.7 Page 26 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 23 DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 (a) samples are free of physical damage;Results: All of the tendon wire test samples taken by PSC were free of physical damage.(b) sample ultimate tensile strength and elongation are not less than minimum specified values.Results: All of the tendon test wire samples had acceptable results for ultimate tensile stress (> 240 ksi ) and elongation

(> 4%).IWL-3221.3 Tendon Anchorage Areas. The condition of tendon anchorage areas is acceptable if: (a) there is no evidence of cracking in anchor heads, shims, or bearing plates;Results: Detailed inspections did not reveal any cracks in the anchorage components for any inspected tendon end.(b) there is no evidence of active corrosion; Results: Detailed inspections did not reveal any active corrosion on the anchorage components for any inspected tendon end.(c) broken or unseated wires, broken strands, and detached buttonheads were documented and accepted during a pre-service examination or during a previous in-service examination; Results: Two wires initially found protruding and later discovered to be broken were identified on the shop end of vertical tendon V1i18. A Continuity Test was performed on the remaining wires and the broken wires were submitted to TMI Engineering.

No oth'er missing or protruding wires/buttonheads were discovered during initial examinations of Surveillance tendon ends.(d) cracks in the concrete adjacent to the bearing plates do not exceed 0.01 in. in width;Results: No cracks exceeding 0.010" were detected in the 24" of concrete adjacent to the bearing plates.(e) there is no evidence of free water.Results: No water was detected on any of the inspected tendons at any point during inspections.

IWL-3221.4 Corrosion Protection Medium. Corrosion protection medium is acceptable when the reserve alkalinity, water content and soluble ion concentrations of all samples are within the limits specified in Table IWL-2525-1.

The absolute difference between the amount removed and the amount replaced shall not exceed 10% of the tendon net duct volume.Results: All sheathing filler (grease) samples were tested and found to have acceptable levels of water-soluble ions (Chlorides, Nitrates and Sulfides).

All neutralization numbers were above the IWL requirement of 0.0 mg KOH/g for original tendons and 17.5 mg KOH/g for replacement tendons and are acceptable.

Water content values were below 10% by weight and acceptable for all samples tested.The absolute difference between the amount of grease removed and replaced was less than 10% of the net duct volume and deemed acceptable for all tendon ends.Based upon the evaluation of the In-Service Inspection results for the Three Mile Island Unit 1 -1 st Year Augmented Tendon Surveillance reported herein, PSC concludes that the tendon group affected by the 2009 SGRP and the containment structure surrounding these tendons has experienced no abnormal degradation.

The group of tendons affected by the 2009 SGRP is performing as expected and in accordance with the design requirements.

Tnnical Rennrt 20l4 Attachment 8.7Paqe27 of52 Attachment 8.7 Page 27 of 523 DOCUMENT NUMBER: TM-N1063-500 REVISION:

0 PAGE: 24 E DOCUMENT TITLE: FINAL REPORT FOR THE 2010 AUGMENTED IWL INSPECTION Exelmn.PROJECT TITLE: TMI AUGMENTED TENDON SURVEILLANCE DATE: 2/22/11 Nuclear 11.0 REFERENCE DOCUMENTS 11.1 American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI, 2004 Edition.11.2 Code of Federal Regulation 10 CFR 50.55a 11.3 PSC Post Tensioning System In-Service Inspection Manual (N 1043) for Three Mile Island Unit 1 (3 5 th Year) Physical Containment Building Tendon Surveillance, Revision 3.11.4 TMI Surveillance Procedure 1301-9.1, Revision 21.Topical Report 204 Revion 0 Attachment 8.7 Page 28 of 523