ML070600599

Various Ar'S 03/24/2006 to 10/27/2006 Report

ML070600599
Person / Time
Site:	Oyster Creek
Issue date:	10/27/2006
From:	O'Hara T L NRC/RGN-I/DRS/PSB2
To:
References
IR-06-013 AR 00470325
Download: ML070600599 (116)

Text

F:\OC-LR-info\F.wpd TOP CLASSIFICATI~~:

UNCLASSIFIED DOCUMENT SOURCE: . LICENSEE FINAL-BR-BABPiT Document NRC INSPJTEAM:

'Exampre 0500021 9/2006-013 DOCUMENT PROVIDER:

Tim 0"Hara (2/23/07)

ADAMS PROFILE INFORMATION PROFILETAB: - 1 d1-71 8-6 i DocumentDate:

vafies s- g 3l%.l(bb \u'* Document Type: Licensee Document Availability

Non-Publicly Available (ALWAYS)

Title: 1 AR 00470325, 3/24/06 AR 00523259, 8/24/06 IR 00547025, 10/20/06 AR 00545422 , 1 0/18/06 IR 00546693, 10/20/06 IR 00546932, 10/19/06 IR 00546915, 10/19/06 IR 00546269, 10/19/06 IR 00547397, 10/22/06 AR 00550437, 10/28/06 AR 00548459, 10/24/06 AR 00546932, 10/20/06 AR 00545835, 10/18/06 AR 00551910, 11/01/06 IR 00545251,10/17/06

~ - AR 00546049, 10/1 Q/& AR 00548568, 10/25/06 AR 00551897, 11/01/06 AR 00546049, 10/19/06 AR 00547236, 10/21/06 AR 00548227, 10/24/06 AR 00550022, 10/27/06 AR 00550100550181, 10/27/06 AR 00548459, 10/24/06 vcy, 2 q Q@_t 37 CbPT HI, 1-13 0% w $,k '\ Keyword [MV]: SUNS1 Review Complete:

Yes (ALWAYS) +Template:

RGN-001 (Pick one) Document Sensitivity: Non-Sensitive, Licensee document SECURITY TAB: RI DRS-BS as Owner DPC as Owner OGC as Author NRR as Viewer RI as Viewer Once saved, copy to DPC under Normal Processing Move Processed Document into ADAMS Profiling Complete Folder in WP Profile Complete Date: Initials:

AR - Assignment Report Page 1 of 2 Print I New Search I Home Go Back AR 00470325 Report Aff Fac: Oyster Creek AR Type: CR Status: COMPLETE Aff Unit: 01 Aff System: 187 Owed To: ACAPALL Due Date: 04/23/2006 Event Date: 03/24/2006 CR Level/Class:

4/D How H02 Discovered:

WWPIMS AR: A2139074 Component

1. TORUS Disc Date: 03/24/2006 Orig Date: 03/24/2006

~ ktion Request Details

Description:

TORUS/TORUS ROOM MI NOR DEFICIENCIES Originator:

ROBERT 1 BARBIERI Supv Contacted: H.

Ray Condition

Description:

While performing a routine walkdown, the following minor deficiencies were noted : 1. Three of the five buckets which collect water from the sandbed drains were full. There is no leakage currently as there was no water on the floor or evidence of flow in the lines. However, the buckets should be emptied and monitored for possible future leakage. 2. Most of the baseplate supports were in excellent condition.

However there was one which should be cleaned and coated. This is not a major concern at this time but needs to be captured in a PIMS AR. 3. There were some mid bay supports which should be cleaned and coated.

This should include the vertical members. This condition is not a major concern at this time but should be captured in a PIMS AR. 4. There was a chip in the coating on a mid-bay strap. This chip is located near the floor drain riser. It is not an immediate concern and can be performed later. 5. Some of the radiation barrier ropes and signs were down, but the barrier perimeter could be identified.

All ropes and signs should be restored and the contamination and high radiation areas should be clearly marked. This should include the areas under and behind the Torus. This is of particular importance so that routine inspections can be made and which includes all areas behind the Torus. 6. There were some minor housekeeping items which should be removed, such as a screw driver and pliers under the Torus. Immediate actions taken: Verified that all conditions noted were minor in nature and were not an immediate concern. Recommended Actions: Create PIMS AR/s to include the following:

1. Empty all buckets in the Torus room and ensure that tubing is properly connected after buckets are emptied. 2. Perform coating repairs to all supports and mid bay strap. All areas should be cleaned and recoated in accordance with existing procedures.

3. Perform necessary radiation surveys and restore all signs and barriers as appropriate. 3. Perform a housekeeping tour of the area a remove all unnecessary debris. http://cccmvd0 1 .ceco.com:6 123/cap/servlet/ReportARServlet 8/23/2006

<_I -~

AR - Assignment Report Page 2 of 2 Operable Basis: GRH: The primart containment is not impacted by any of these defficencies, they are all minor in nature, and do not affect any SSC. Reportable Basis: not reportable.

Reviewed by: GLENN R HUTON 03/24/2006 13: 16: 18 CST Reviewer Co m m en t s : no comments.

SOC Reviewed by: THOMAS A POWELL 03/30/2006 05:48:42 CST SOC Comments:

3/26/06 tas Close to PIMS AR for coating 3/27/06 ARJ - To follow up for the IR that talked about radiological postings within the torus room.

RPTs made an inspection and updated

/ straightened up the radiological postings.

It should be noted that "there were no ropes or signs found down in the torus Rm as the IR had stated.

At one spot the rope was moved inward so that work support could recoat a section of the torus and the rope had to be lowered to the floor where the torus wall drops to near floor level". Followup Engineering 3/29/06 TAP - buckets have been emptied to allow trending of sand bed leakage. Close to PIMS AR. Followup Engineering 3/30/06 TAP - Torus leak monitoring activities are being tracked on IR 348545. Close to PIMS AR. Assignments Assign #: gJ Assigned To: Status: COMPLETE Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date:

0 3/ 2 9/20 06 Assign Type:

TRKG Sec Grp: Orig Due Date: w/w/ww Priority:

Schedule Ref: Unit Condition:

Subject/Description:

TORUS/TORUS ROOM MINOR DEFICIENCIES http://cccmvd0 1 .ceco.com: 6 123/cap/servletlReportARServlet 8/23/ 2006 AR - Assignment Report Page 1 of2 Print 1 New Search I Home AR 00523259 Report ~~~ ~ APPROVED Aff Fac: Oyster Creek AR Type: CR Status: Aff Unit:

NA Owed To: ACAPALL Due Date:

0912 312 006 Aff System: 187 Event Date:

08/24/2006 CR 41 D Disc Date: 08f 2412006 LevellClass:

How H03A Orig Date:

Discovered:

WR/PIMS AR: Component

1. Action Request Details Subject : CLOSE OUT OF RT R2088546 NOT PROPERLY DOCUMENTED

==

Description:==

Originator:

PETER TAMBURRO Supv Contacted:

EDM - Ralph LArzo Condition

==

Description:==

Repetitive Task R2088546 requires a walkdown of the torus to inspect five poly bottles. These poly bottles are intended to collect water that drain form the Sandbed Drains.

This RT was recently implemented as the result of AR A2139074 The RT section 6 subsection A requires the following document in the CREM if water is present, and if so what is the level in the bottle and the location of the bottle This RT was implemented a results of A2139074 which documented that Oyster Creek was not meeting it commitments to periodically walkdown these bottle and observe for water. This deficiency was discovered during preparation of an NRC License Renewal inspection in March 2006. During the March Audit Oyster Creek committed that we would put in place a repetitive task to walkdown these bottles and record the amount of water in each bottle. This RT was performed for the first time on 8/1/06. The CREM close out of the inspections says the following:

All SAT No Draining Required Unfortunately these close out words do not document whether the bottles actually had water in them and the location.

This does not meet the requirements of the RT which is to document if water is present and if how much. Immediate actions taken: Informed the Engineering Duty Manger and the system manages Recommended Actions: 1) Immediately perform this RT again and document if, and how much water is observed in each bottle. 2) Revise the RT to instructor the inspector total have the water sampled by chemistry if water is found. http://cccmvd0 1 .ceco.com:6 1 23/cap/servlet/ReportARServlet 8/28/2006

~ AR - Assignment Report . What activities, processes, or procedures were involved?

I was asked by the NRC Inspector for a status of the corrective actions associate with AR A2139074.

I was specifically asked: has the plant observed any water since March of 2006? In researching the AR I found that the RT was implemented and Oyster Creek had only performed the RT once since March.

Unfortunately based on the CREM close out, I cannot report back to the NRC Inspector whether we found water in the bottles during our only scheduled inspection.

Please Note: Bob Barbieri did walkdown and observe these bottles in June 2006 during a Torus Room tour. He observed no water in the bottles at this time. Operable Basis: N/A Reportable Basis: N/A SOC Reviewed by: THOMAS A POWELL 08/25/2006 06: 11 :44 CDT SOC Comments:

8/25/06 TAP - Need Ops to clearly document the status of each bottle, if water was present, how much was it? Reviewed by: THOMAS 3 BUSK 08/25/2006 09:55:58 CDT Reviewer Comments:

A separate activity will need to be created on this RT for chemistry to sample (and what they are analyzing for).

The OPS RT would need to be changed to notify chemistry to sample the contents and remove step to dump bottle. After Chemistry has taken the sample (s), have in Chemistry's activity to dump the bottle(s) per a pre-established level as determined by Eng. In this way OPS would not have to enter again just to dump the bottle since Chemistry is right there sampling.

Page 2 of 2 Assignments 01 Assigned To: Status: AWAITjC Assign #: - Aff Fac: Oyster Creek Prim Grp:

ACAPALL Due Date:

08/29/2006 Assign Type: TRKG Sec Grp: Orig Due Date:

PP/PP/PPC~P Priority:

Schedule Ref: Unit Condition:

Subject/Description:

CLOSE OUT OF RT R2088546 NOT PROPERLY DOCUMENTED http: //cccmvdO 1 . ceco . com: 6 1 23/cap/servl et/ReportARS ervlet 8/28/2006 3xelon Nuclear Issue Entry Page 1 of 1 G) Create another New Issue @Create another Issue from '00547025.

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Exelon Nuclear Issue - Statement of Confirmation

~~ Issue #: 00547025 Originator:

CHRISTOPHER D WILSON Submit Date: October 20.2006 Basic Information Affected Facility:

Dscv Dale: How Discovered Code: Event Date: Affected Unit: Affected Sys:

Subject:

Oyster Creek 10/20/2006 20:W H02 10/20/2006 20:M 01 570 TROUGH DRAIN UNDER REACTOR PEDESTAL IS NOT SLOPED CORRECTLY 0' Equipment Defeciency Tag: none Tag Location:

MCRD: na N , Required Information Trough drain under reactor pedestal(drywel1) is supposed to flow freely into 1-8 sump. However, it was noticed that water puddles in the drain. By taking measurements it was found that the pipe at the entrance to the sump is 7/16 inches higher than the lowpoint in the trough thus not allowing the trough to fully empty. Additionally, the concrete floor under the reactor is heavily pitted due to CRD leakage over the years. Eventually this could lead to exposing the rebar and allow mositure intrusion into the concrete floor Condition

==

Description:==

lmmediaie actions taken: 'One Recommendation ,or action: Engineering to evaluate appropiate long term actions to prevent water accumalation in trough and evaluate the condition of the undetvessel floor. Supervisor Verbally howie ray Contacted Optional Additional Information What activities, processes, or attempting to determine source of leakage into bay 5 trench procedures were involved?

Why did the condition happen? List of Knowledgeable Dave Ryan individuals:

Is this a repeat or similar condition?

original construction and CRD flange leakage no Routing ACAPALL Owed To Group: Routed to Group: CR-OSC AR - Assignment Report a Go Back Page I of 1 Print I New Seardl I Home I AR 00545422 Report I Aff Fac: Oyster Creek AR Type: CR status: 'APPROVED Aff Unit: 01 Aft System: 187 CR LeveYClass:

/ How Discovered H01 WWPIMS AR: Owed To: ACAPAU Due Date: Event Date: Disc Date: Orig Date: Component k 1 1/17/20 06 10/17/2006 10/17/2006 10/18/2006 Action Request Details

Subject:

AS FOUND CONDITION OF DRYWELL LINER TRENCHES Descrlptlon:

Originator:

KARL F FISHER Supv Contacted: Frank Stulb I Condition

Description:

On 10/17/06 NDE personnel attempted to perform the scheduled VT-1 and uf examinations of the drywell liner in the existing trenches In Bays 5 & 17. The work order for this activity is C2013479.

The examinations were scheduled to follow the removal of sealant material from the trenches.

The NDE examinations could not be performed due to the as found conditions in the trenches.

There was evidence of water in each of the trenches.

Approximately 5" of water was noted in Bay 5. In Bay 57 there was evidence of moisture at the bottom of the trench, but no standing water was present.

In both trenches the drywell liner surface is not clean enough to perform the visual and ultrasonic examinations.

Immediate actions taken: Photographs were taken of the as found condltons and Site Engineering and the OCC were notified.

Recommended Actions: prepare the liner surfaces for the visual and ultrasonic examinations.

Operable Basis: Reportable Basis: I Assignments Assign #: - 01 Assigned To: Status: AWAlT/C Afi Fac: Oyster Creek Prim Grp: ACAPAU Due Date: 10/23/2006 Assign Type: TRKG Sec Grp: Orig Due Date: PP/PIJ/PIJP~

Priority:

Schedule Ref: Unit Condition:

Subjecl/Description:

AS FOUND CONDITION OF DRYWELL LINER TRENCHES http://cccmvaO 1 .ceco.com:6 123/cap/servlet/ReporttARServlet 1011 8/20C Exelon Nuclear Issue Entry -- -- Q- Page 1 of 2 0 e e @ Create another New Issue e Create another Issue from

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Exelon Nuclear Issue - Statement of Confirmation Issue #: 00546693 Originator:

PETER TAMBURRO Submit Date: October 20, 2006 ~~ Basic Information Oyster Creek 10/20/2006 09:OO H02 Affected Facility:

Dscv Date: How Discovered Code: Event Date: 10/20/2006 09:OO Affected Unit: Affected Sys:

Subject:

NA 1 87 INCONSISTENT ACCEPTANCE CRITERIA IN DRYWELL INSPECTION SPEC1 Required Information Condition

==

Description:==

Immediate actions taken: Recommendation for action: Supervisor Verbally Contacted During review of Drywell Vessel UT data for Internal Upper Location Bay 13 Area 13/31(52-13) in accordance with Specification IS 326227-004 Revision 13 it was found that the acceptance criteria in section 3.2.1, Table 1 was incorrectly entered. Table 1 of the specification states that the acceptance criteria for any one individual UT reading at this location is 0.675'. Section 3.2.1.1 documents the intent and basis for the criteria.

The intent of the criteria is to provide a low threshold for all inspection results so that any unexpected reading in 2006 will be quickly identified and dispositioned. The criteria was developed from the thinnest individual reading point previously recorded in 2004 plus or minus a 20 mil tolerance for UT instrumentation uncertainty.

Review of calculation C-1302-187-E310-037 Rev 2., Appendix 5 Page A5-1 shows that the lowest recorded individual reading in 2004 was point 28 which was 0.562". Therefore with the plus or minus 20 mil tolerance the acceptance criteria in specification IS-328227-004 Rev. 13 table should have been 0.546" and not 0.675". Please note the 2006 results for this location met all local and general criteria.

The 2006 reading at point 28 was 0.562". There is no operabilty concern related to this inspection results Informed manager Howie Ray and The Outage Engineering Control Center Revise Specification IS 328227-4 with correct critreia Howie Ray and Dan Barnes Optional Additional Information What activities, processes, or During Review of Drywell Vessel UT data for Internal Upper Location Bay 13 Area 13/31(52-13) in procedures were involved?

accordance with Specification IS 328227-004 Revision 13. Why did the condition happen? Lack of Attention to detail by the specification preparer and reviewer.

Routing http://cccmvd0 1 .ceco.com:6 123/cap/servIet/OriginatorServlet 10/20/2006

-. li .. exelon Nuclear Issue kntry B- i Page 2 of 2 ACAPALL Owed To Group: Routed to Group: CR-OSC 0 http://cccmvdO1 .ceco.com:6 123/cap/servlet/OriginatorServlet 10/20/2006

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gxelon Nuclear Issue - Statement of Confirmation Issue #: 00546932 Originator: PETER TAMBURRO Submit Date: October 20,2006 Basic Information Affected Facility:

Dscv Date: How Discovered Code: Event Date: Affected Unit: Affected Sys:

Subject:

Equipment Defeciency lag: Tag Location:

MCRD: Oyster Creek 1011 912006 13:OO H02 1011 9/2006 13:OO NA 187 SEPARATION OF EPOXY COATING AT DW SHIELD WALL IN SANDBED None None N Required Information During visual inspection of Drywell Vessel exterior coating in sandbed in bays 1. 7, 9 and 15 several areas were observed where an the epoxy repair of the floor and the original concrete floor have separated.

The separation has caused a seam between the epoxy repair and the original concrete floor or the side of the concrete bioshield.

In 1992 during the Sandbed Sand removal and Drywell Vessel coating application project the concrete floor of the sanded was found degraded and uneven. This uneven floor prevented complete water drainage of the sanded by the five sandbed drain lines, which are evenly spaced through out the sandbed. The purpose of the floor and the drain lines is to route water that collects in the sandbed away for the Drywell Vessel.

As a result the floor was repaired in 1992 with an epoxy coating. The coating was applied in areas where the floor was uneven so that any water entering the sandbed would flow away from the vessel and be routed to the drains. The 2006 inspections in bays 1.7,9 and 13 indicates the epoxy has separated from the transition where the epoxy meets the concrete floor or concrete bio shield. The separated seams could potentially allow some water to get under the epoxy coating repair.

Condition

==

Description:==

Please note inspection of these bays shows no degradation drywell vessel coating or the caulking between the vessel coating and the floor or the epoxy coating on the floor. Separated seams are located away from the Drywell Vessel and are located near concrete bio shield. Operability At this time the reactor cavity trough and drain line are performing their function, which is to keep leakage away from the drywell vessel. Engineering has inspected the 5 poly bottles associated with the sandbed region drain lines every day since the beginning of the outage (R2088495).

To date no water has been found in any of the bottles or http://cccinvd0 1 .ceco.com:6 123/cap/servl et/OrjginatorServlet 10/20/2006

~ .;" Exelon Nuclear Issue Entry Page 2 of 2 Immediate actions taken: Recommendation for action: Supervisor Verbally Contacted on the floor outside the sandbed bays. Also Engineering and NDE have inspected 5 of the 10 Drywell Sandbed bays. Although there are some stains representing potential previous water in bay 7; to date no water or moisture has been observed in these bays. The remaining 5 bays will be inspected in the next few days. Engineering will continue to monitor (on a daily basis) the trough drain line for changes in flow rate and the five polyvinyl bottles for water. Informed Howie Ray and the Engineering Control Center 1) Continue to monitor the five poly bottles and trough drain line per our commitments.

2) Recommend cleaning the joints and applying caulk at these seams to ensure water can not enter the seams. Howie Ray Optional Additional Information Routing ACAPALL Owed To Group: Routed to Group: CR-OSC httd/cccinvdO 1 .ceco.com:6 123/cap/servl et/OriginatorServlet 10/20/2006 Y - Exelon Nuclear Issue Entry Page 1 of2 W e e 61F Create another New Issue e! Create another Issue from '00547236' Print Close window **AS REQUIRED, PRINT ISSUE REPORT AND PROVIDE TO YOUR SUPERVISOR**

Note: This is your only notice. You will not have an opportunity to print this confirmation later. Exelon Nuclear Issue - Statement of Confirmation

~~ Issue #: 00547236 Originator:

PETER TAMBURRO Submit Date: October 21.2008 . Basic Information Oyster Creek 10/21/2006 13:OO Aff e cte d Fa c ilMy : Dscv Date: . .. H02 How Discovered Code: 10/21/2006 13:OO Event Date: Affected Unit .NA 1 87 DEBRIS LOCATED IN BAYS 7 AND 11 SANDBED DRAIN LINES None None N Affected SyS:

Subject:

Equipment Defeciency Tag: Tag Location:

MCRD: Required Information Condition

Description:

Immediate actions taken: Recommendation for action: Inspection of the Sandbed Drain Lines in accordance with Specification 18-328227-004 Rev. 13 showed that the drain line in bay 7 has debris, which could cause blockage of this line. The debris looks like loose concrete.

This does not meet the acceptance criteria in the specification per section 3.2.5.2. In addition the inspection ofthe drain fine in bay 11 shows some loose debris in the bottom of the line directly downstream of the first elbow.

However the line is not blocked and meets the acceptance criteria.

Operability The purpose of the drain lines is to route water in the sandbed from the drywell vessel. At this time the remaining 4 lines are capable of performing this function.

In addition since the line in bay 7 is not completely blocked it too would pariially perform its function by draining the sandbed. So far in 1-1 no water has entered the sandbed. Engineering has inspecled the 5 bottles every day since the beginning of the outage (R2088495).

To date no water has been found in any of the botlles or on the floor outside the sandbed bays. Also Engineering and/or NDE have inspecfed all 10 Drywell Sandbed bays. To date no water or moisture has been observed in these bays and the coating is in good condition..

Engineering will continue to monitor (on a daily basis) the trough drain line for changes in flow rate and !he five polyvinyl bottles for water. /r (\G Informed Howie Ray and the Engineering Control Center 1) Continue to monitor the five poly bottles and trough drain line daily per our commitments 1 2) Recommend cleaning the drain lines in bays 7 and 11.

.- Exelon Nuclear Issue Entry Page 2 of 2 Supervisor Verbally Howie Ray Contacted I. Optional Additional Information Routing ACAPALL Owed To Group: Routed to Group: CR-OSC 1 0/2 1 /2006

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'00546915' Print Close window **AS REQUIRED, PRINT ISSUE REPORT AND PROVIDE TO YOUR SUPERVISOR** Note: This is your only notice. You will not have an opportunity to print this confirmation later. Exefon Nuclear Issue - Statement of Confirmation Issue #: 00546915 Originator:

PETER TAMBURRO Submit Date: October 20,2006 Basic Information Oyster Creek 10/19/2006 09:OO H02 10/19/2006 09:OO Affected Facility:

Dscv Date: How Discovered Code: Event Date: NA 5 72 SMALL LEAKAGE IN THE REACTOR CAVITY TROUGH DRAIN LINE Affected Unit: Affected Sys:

Subject:

Required Information On 10/19 about 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after Reactor Cavity flood up, inspection found a small amount of leakage flow (about 1 gpm) coming from the reactor cavity trough drain line at V-18-131.

The flow, which has since been monitored several times, is steady and continuous.

This leakage is most likely coming from the flooded reactor cavity through the stainless steel liner and the strippable coating that is applied to the cavity walls prior to flood up. Similar small amounts of leakage have been observed in past refueling outages with the coating applied. Condition

Description:

The function of reactor cavity trough drain and the drain line is to capture leakage from the reactor cavity bellows seal and the stainless steel liner and keep it from flowing down the side of the drywell vessel. Therefore this leakage is evidence that the strippable coating is not completely eliminating leakage through the stainless steel liner and entering the trough.

Operability At this time the reactor cavity trough and drain line are performing their function, which is to keep leakage away from the drywell vessel.

The capacity of the trough and drain line is estimated to be greater than 50 gpm. Therefore the existing leakage rate, which is estimated to be about 1 gpm, is well within the capability of configuration and below regulatory action levels. If the leakage were to flow over the trough and down the Drywell Vessel walls the water would eventually flow into the Sandbed, into the 5 Sandbed drain lines, and into the 5 polyvinyl bottles located in the Torus Room. Engineering has inspected the 5 bottles every day since the beginning of the outage (R2088495).

To date no water has been found in any of the bottles or on the floor outside the sandbed bays. Also Engineering and NDE have inspected 7 of the 10 Drywell Sandbed bays.

To date no water or moisture has been observed in these bays.

The remaining 3 bays will be inspected in the next few days. Engineering will continue to monitor (on a daily basis) the trough drain line for changes in flow rate and the five polyvinyl bottles for water.

/- 4 httn://cccnivdOl .ceco.co1n:6123/ca~/servlet/Ori~inatorServlet 1 012 Of 2 006

- -. Exelon Nuclear Issue Entry Page 2 of 2 Immediate actions taken: Recommendation for action: Supervisor Verbally Contacted Informed Howie Ray and the Engineering Contrrl Center 1) Continue to monitor the five poly bottles and trough drain line daily per our commitments

2) Although the strippable coating is doing a pretty good job of reducing the leakage it is recommended the Engineering work with Outage Services and the coating vendor to improve the coating or application methods or modify the liner so that leakage can be completely eliminated.

3) Quantify the leak rate by timing how long it takes for the flow to fill a bucket with a known volume. Howie Ray Optional Additional Information Routing Owed To Group: ACAPALL Routed to Group: CR-OSC h t to ://cccmvd 0 1 . ceco . coin : 6 1 2 3 /cap/servl et/Orig,in a t or S ervlet 10/20/2006

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Note: This is your only notice. You will not have an opportunity to print this confirmation later. Exelon Nuclear Issue - Statement of Confirmation issue #: 00546269 Originator:

ROBERT J BARBlERl Submit Date: October 19,2006 Basic Information Affected Facility:

Dscv Date: How Dlscovered Code: Event Date: Affected Unit: Affected Sys:

Subject:

Work Against:

Component Unit: Component System: Component Category:

Component Type: Component Number: Equipment Defeclency Tag: Tag Location:

MCRD:

Leakage Type: Leakage Volume: Oyster Creek 1011 9/2006 09:OO H02 1011 912006 09:00 01 424 WATER LEAKING ONTO TORUS E 1 424 P P 424 None None N W D Required Information While performing a walkdown in the Torus room, a puddle on the floor was noticed, and the source was identified to be coming from the top of the Torus. The puddle is in the same general location that was reported in IR 472348 in April 2006. PlMS AR A2139363 was created to investigate and repair the leak that was found in April. However, the associated work order (C2013335) is complete.

The CREM states only 'Leak Repaired'.

There is no description of what was the nature of the failure, where it was, or what was done to correct it. Based on this information, 1 don't know if the current leak is the same leak from April, or a new one.

Since the work order is complete, there is no tracking mechanism to follow up and ensure the leak has been stopped or will ever get fixed. Condition

==

Description:==

Notified Manager and entered the event into the corrective action process.

1. Determine source of leakage. Immediate actions taken: Recommendation for action:

- -, .- Exelon Nuclear Issue Entry Page 2 of 2 2. Have Maintenance properly complete CREM for work order C2013335 to identify location and describe nature of failure and how it was reworked.

3. Repair leak in an expeditious manner. Water on Torus room floor could interfere with proper identification of leakage due to refueling activities. Supervisor Verbally T. Powell Contacted Optional Additional Information Why did the condition happen? What are the consequences?

Identify any adverse physical conditions:

List of Knowledgeable individuals:

Is this a repeat or similar condition?

Unknown Leakage onto the Torus and onto the Torus Room floor are unacceptable conditions.

Possible pipe leak and possible corrosion due to water on exposed steel surfaces. Engineering Manager Yes. Routing Owed To Group: Routed to Group: ACAPALL CR-OSC 10/19/2006

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__~ ~ ~ ~ **AS REQUIRED, PRINT ISSUE REPORT AND PROVIDE TO YOUR SUPERVISOR-Note: This is your only notice. You will not have an opportunity to print this confirmation later. ~~ ~ ~ Exelon Nuclear Issue - Statement of Confirmation Issue #: 00547397 Originator: PETER TAMBURRO Submit Date: October 22,2006 Basic Information Affected Facility:

Dscv Date: How Discovered Code: Event Date: Affected Unit: Affected Sys:

Subject:

Equipment Defeciency Tag: lag Location:

MCRD: Oyster Creek 10/22/2006 08:OO H02 10/22/2006 08:OO NA 187 ELIMINATE THE SANDBED ACCESS TUNNEL SAND BAGS None None N Required Information Replace the sandbags in the Sandbed access tunnels with hatches Condition

==

Description:==

In 1 R21 all 10 Drywell Sandbed Days were inspected. Access to the sandbed is through ten 20 inch 8 foot long tunnels that were core bored into the Drywell Concrete Pedestal.

The access tunnels were installed in 1992 during the project to remove the sand from the sandbed. Afler the project was completed the access tunnels were closed with sand bags that were laid inside the tunnels.

The sandbags fill about 6 feet of the 8-foot long tunnels. During preparation for the 1R21 inspections it become apparent that the removal and reinstallation of these sandbags places a high burden on personnel with respect ALARA exposure and safety.

In order to remove the bags a person must lay in the tunnel and pass the bags across his body outside the tunnel. Conversely the same procedure is required to reinstall them. In addition the persons performing this work and attendants are receiving dose. In addition the bags have in the past broken and sand has spilled onto the tours room floor. The solution to this burden would be the installed of hatch covers on the entrance to the tunnels and eliminate the need for the sandbags. Review of the configuration change documents from the 1992 time shows the bags were placed in the tunnel as an extra added radiation reduction measure. However review of the basis calculation suggests that the additional expose in the torus room without the bags would be minimal. Contact with a vendor indicates hatch could be delivered to Oyster Creek by Thursday 10/26 ,mmediate actions taken: Informed Howie Ray and the Engieering Control Center http://cccmvd0

1. ceco. com:6 1 23/cap/servlet/OriginatorS ervlet 10/22/2006 - Exelon Nuclear Issue Entry Page 2 of 2 Recommendation for action:

1) Approve an Outage scope add to replace the sandbags with hatches. 2) Develop an ECR Supervisor Verbally Howie Ray Contacted Optional Additional Information Routing ACAP ALL Owed To Group: Routed to Group: CR-OSC http://cccmvd0 1 .ceco.com:6123/cap/servlet/OriginatorServlet 10/22/2006

& - Assignment Report Page 1 of2 Print I New Search I Home Go Back AR 00550437 Report Aff Fac: Oyster Creek AR Type: CR Status: APPROVED 01 Owed To: ACAPALL Due Date:

11/27/2006 Aff Unit: Aff System:

187 Event Date:

10/28/2006 CR 41 Disc Date:

1 O/ 281 2 006 LevellClass:

How H02 Orig Date:

10/28/2006 Discovered:

WRlPlMS AR: Component

1. 187 ~~~ Action Reauest Details Subject :

Description:

CONCRETE VOID FOUND IN TROUGH ADJACENT TO DRYWELL SUMP Originator:

FRANCIS H RAY Supv Contacted:

D. Kettering, Condition

Description:

After removing the debris while implementing cleaning activities on the under vessel area of the concrete trough to drywell sump interface associated with the advanced work activities provided in ECR 06-00879, engineering was notified by the field that a significant concrete void was found at the bottom of the trough adjacent to the outside corner of the drywell Sump. This void exists as a result of a glass object being embedded within the concrete surface at the bottom inside surface of the trough. This condition appears to have been caused by original construction and is a probable cause for the water leaking into the bay 5 trench identified in IR 546049. Immediate actions taken: The OCC was notified.

The drywell repair team developed plans for removing the object and repairing the concrete surface. An advanced work authorization (AWA No. 7) to ECR 06-00879 has been provided with repair details. Recommended Actions: 1. Complete repair activities per ECR 06-00879 including completing full inspection of drywell sump liner to ensure that this issue has not impacted its integrity. What activities, processes, or procedures were involved?

Field implementation of the approved Advance Work Authorizations provided in ECR 06-00879.

Why did the condition happen? Appears to have been from original construction.

What are the consequences?

This condition is a probable cause of the water leaking into the Bay 5 trench. The water issue is being addressed under IR 546932. Were there any adverse physical conditions? The degraded concrete is a probable source of water leaking to the Bay 5 trench. http://cccmvd0 1 .ceco .corn: 6 1 23/cap/sendet/ReportARS ervl et 10/29/2006 M AP. - Ashignment Report Page 2 of 2 List of knowledgeable individuals:

P. Abate (Williams), D. Kettering, G. Sevcik, D. Ryan, OCC Operable Basis: REB This condition does not impact overabll containment operability and will be evaluated by engineering prior to startup. Reportable Basis: SOC Reviewed by: ROBIN E BROWN 10/29/2006 08:16:23 CST SOC Comments:

10-29-06 REB Complete repair activities per ECR 06-00879.

Ass ig nrnen ts Assign #: - 01 Assigned To: Status: AWAIT/C Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date: 11/02/2006 Assign Type: TRKG Sec Grp: Orig Due Date: ~JC~/C~P/C~PC~P Priority:

Schedule Ref: Unit Condition:

Subject/Description:

CONCRETE VOID FOUND IN TROUGH ADJACENT TO DRYWELL SUMP http://cccmvd0 1 .ceco .corn:

6 1 23/cap/servl et/ReportARS ervlet 10/29/2006

- ,4R - Assignment Report Page 12 of 13 AR 00548459 Report Aff Fac: Oyster Creek AR Type: CR Status: APPROVED Aff Unit: NA Owed To: ACAPALL Due Date:

11/23/2006 Aff System:

187 Event Date:

10/24/2006 CR 4/D Disc Date: 1 0/24/2 00 6 LevellClass:

How H02 Orig Date: 10/24/2006 Discovered:

WRlPlMS AR: Component

1. 187

Description:

LOCAL UT READING BELOW ACCEPTANCE CRITERIA Originator:

PETER TAMBURRO Supv Contacted:

Howie Ray Condition

Description:

During Review of Internal Drywell Vessel UT data for Elevation 23 in Bay 17 several local readings were less than the acceptance criteria in IS 328227-004 Revision 13 section 3.2.7.4 which stated that all local reading less than 0.655 shall be entered into the Corrective action and evaluation by Engineering..

The intent of the criteria is to provide a low threshold for all inspection results so that any unexpected readings in 2006 will be quickly identified and dispositioned.

This is the first time these locations have been inspected.

The inspection data indicates the two separate local readings in Bay 15 as 0.652 and 0.628. In addition a third local reading of 0.655 was recorded at a different location in bay 17. This local value meets the criteria in IS 328227-004 Revision 13 section 3.2.7.4. Operability The Oyster Creek Drywell is operable based on Calculation C-1302-187 E310-037.

The intent of the criteria in specification IS 328227-004 Revision 13 is to provide a low threshold for all inspection results so that any unexpected readings will be evaluated.

The UT inspections in bay 15 show two local reading of 0.628and .652.

In addition the inspection shows that the average thickness in the 6 by 6 area around these locations is 0.758. The minimum local code required thickness for the Drywell at this elevation is 0.36 and the minimum average code required thickness is 0.541 (ECR 05-00275).

Therefore these as-found readings meet design basis. In addition these areas will not corrode to below the minimum required thickness prior to 2029. The Oyster Creek Drywell Corrosions Monitoring Program has http://cccmva0 1 .ceco .com:6 123/cap/servlet/ReportAServlet 10/25/2006

. . -4R - Assignment Report Page 13 of 13 demonstrated that the Drywell Vessel above the sandbed may be thinning at corrosion rates of less than 1 mil per year. Therefore even when assuming a 1 mil per year corrosion rate the local reading which was measured at 0.628 will corrode to only 0.605 by 2029 which leaves substantial margin. Recommendation ACIT to include these UT result in the Oyster Creek Drywell Corrosions Monitoring Program Final Report for 1R21. Immediate actions taken: Informed Howie ray and Tom Quintenz Recommended Actions: ACIT to include these UT result in the Oyster Creek Drywell Corrosions Monitoring Program Final Report for 1R21. Operable Basis: REB Per engineering: The Oyster Creek Drywell is operable based on Calculation C-1302-187 I. IS E310-037.

Reportable Basis: N/A http://cccmvaO 1 .ceco.com:

6 123/cap/sen~let/Report~ARServlet 10/25/2006

~- - AR - Assignment Report Page 3 of 4 AR 00546932 Report ~~ ~ Aff Fac: Oyster Creek AR Type: CR Status: APPROVED Aff Unit: NA Owed To: ACA PA LL Due Date: 11/19/2006 Aff System: 187 Event Date: 10/19/2006 CR LeveVClass:

I Disc Date: 101 19/2006 How Discovered:

HO2 Orig Date: 10/20/2006 , WWPIMS AR: Component

1. ~~~ ~~ ~ ktion Request Details

Subject:

SEPARATION OF EPOXY COATING AT DW SHIELD WALL IN SANDBED

Description:

Originator:

PETER TAMBURRO Supv Contacted: Howie Ray Condition

Description:

of the floor and the original concrete floor have separated. The separation has caused a seam between the epoxy repair and the original concrete floor or the side of the concrete bioshield.

In 1992 during the Sandbed Sand removal and Drywell Vessel coating application project the concrete floor of the sanded was found degraded and uneven. This uneven floor prevented complete water drainage of the sanded by the five sandbed drain lines, which are evenly spaced through out the sandbed. The purpose of the floor and the drain lines is to route water that collects in the sandbed away for the Drywell Vessel. As a result the floor was repaired in 1992 with an epoxy coating. The coating was applied in areas where the floor was uneven so that any water entering the sandbed would flow away from the vessel and be routed to the drains. The 2006 inspections in bays 1, 7, 9 and 13 indicates the epoxy has separated from the transition where the epoxy meets the concrete floor or concrete bio shield.

The separated seams could potentially allow some water to get under the epoxy coating repair. Please note inspection of these bays shows no degradation drywell vessel coating or the caulking between the vessel coating and the floor or the epoxy coating on the floor. Separated seams are located away from the Drywell Vessel and are located near concrete bio shield. Operability At this time the reactor cavity trough and drain line are performing their function, which is to keep leakage away from the drywell vessel. Engineering has inspected the 5 poly bottles associated with the sandbed region drain lines every day since the beginning of the outage (R2088495).

To date no water has been found in any of the bottles or on the floor outside the sandbed bays.

Also Engineering and NDE have inspected 5 of the 10 Drywell Sandbed bays. Although there are some stains representing potential previous water in bay 7; to date no water or moisture has been observed in these bays. The remaining 5 bays will be inspected in the next few days.

Engineering will continue to monitor (on a daily basis) the trough drain http://cccmvaO1 .ceco.com:6 123/cap/servlet/ReportARServlet AR - .Assignment Report Page 4 of 4 line for changes in flow rate and the five polyvinyl bottles for water. Immediate actions taken: Informed Howie Ray and the Engineering Control Center Recommended Actions: 1) Continue to monitor the five poly bottles and trough drain line per our commitments.

2) Recommend cleaning the joints and applying caulk at these seams to ensure water can not enter the seams. Operable Basis: Reportable Basis: Assign men t s Assign #: - 01 Assigned To: Status: AWAITjC Aff Fac: Oyster Creek Prim Grp: Due Date: 1 O/ 25j200 6 ACAPALL Assign Type: TRKG Sec Grp: Orig Due Date: pcl/clcl/pppp Priority:

Schedule Ref: Unit Condition:

Subject/Description:

SEPARATION OF EPOXY COATING AT DW SHIELD WALL IN SANDBED http://cccmvaOl .ceco.com:6123/cap/servlet/ReportAFServlet 10/20/200 PLR - Assignment Report Page 1 of3 Go Back Print I New Search I Home AR 00545835 Report Oyster Creek AR Type: CR Status: APPROVED Aff Fac: Aff Unit: 01 Owed To: ACAPALL Due Date:

11/13/2008 Aff System: 822 Event Date: 10/18/2006 Disc Date: lo/ 18/2006 CR 4/D LevellClass:

How H02 Orig Date:

10/18/2006 Discovered:

WWPIMS AR: A2152534 Component

1. V-27-2 Action Request Details

Description:

V-27-2 EXCEEDED ADMINISTRATIVE LIMIT ON LLRT Originator:

MARK A CARLSON Supv Contacted:

Mark Carlson, Tom Powell Condition Description

Procedure 665.5.006 data sheet #20 states that V-27-2 administrative limit is 2.0 SCFH and 4.63 SCFH was obtained (3.78 SCFH + 0.85 SCFH for tolerance), which exceeds the stated administrative limit. Immediate actions taken:

Wrote the IR and reviewed past LLRT data for V-27-2 Recommended Actions: 1). Perform evaluation justifying the acceptability of the leakage. 2). Perform cause determination for why leakage occurred as required by 3). Consider replacing V-27-2 in 1R22 by coding Work Order C2009042 for 1R22. NE1 94-01. What activities, processes, or procedures were involved?

LLRT Of V-27-2 Why did the condition happen? Possible degradation of valve seat What are the consequences?

LLRT exceeded OCs administrative limit however the valve has a fairly stable leak rate test history, and a slow increasing trend in leakage since 1R19 and a level trend since 1R20. In the 1R19 outage, leak rate was documented at 3.8 SCFH and in 1R2O it was documented at 4.8 SCFH. The current leakage of 4.63 SCFH is slightly better than the value obtained in lR2O but is considered a level trend. Also, the current leakage for V-27-2 (18 butterfly valve) is well below the Exelon recommended warning limit of 15 SCFH for valves > 10". Therefore, it will be accepted for continued use, and will remain on a 30-month LLRT interval, as required by the OC primary containment leakage rate testing program and Reg Guide 1.162. Were any procedural requirements impacted?

No http://cccmvd0 1 .ceco .com:6 123/cap/servlet/ReportARServlet 10/31/2006

-* - Assignment Report Page 2 of 3 Were there any adverse physical conditions?

No List of knowledgeable individuals:

Bob Barbieri, Mark Carlson Repeat or similar condition?

Yes, exceeded administrative limit in 1R19 & 1R20 Operable Basis: REB Valve has only exceeded Exelon administrative limits and engineering considers it fully operable and can delay work until 1R22. Reportable Basis: N/A SOC Reviewed by: THOMAS A POWELL 10/20/2006 05:01:42 CDT SOC Comments:

10-18-06 REB Close to the PIMS AR. 10/20/06 TAP - Contingency work order for repair already exists C2009042, no new AR needed. Created assignment for engineering to disposition test results as required by NE1 94-01. Recommendation is use as is. Close to assignments.

Dynamic AR Attributes OUTAGE RELATED: lR2l MEV14 ~~~~~~~ Assignments Assign #: - 01 Assigned To: Status: COMPLETE Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date: 10/23/2006 Assign Type: TRKG Priority : Schedule Ref: Sec Grp: Orig Due Date: IJP/PP/PIJPIJ Unit Condition:

Subject/Description:

V-27-2 EXCEEDED ADMINISTRATIVE LIMIT ON LLRT 02 Assigned To: UOOOLC3 Status: COMPLETE Assign #: - Aff Fac: Oyster Creek Prim Grp: A5351NESPR Due Date: 1 l/O 1/2006 Assign Type: CR Sec Grp: Priority:

I Orig Due Date: 11/01/2006 Schedule Ref: Unit Condition:

SubjectlDescription:

cause determination for leakage as required by NE1 94-01 Assign #: - 03 Assigned To: UOOOLC3 Aff Fac: Oyster Creek Prim Grp: A5351NESPR Due Date: 11/13/2008 LLRT - Perform an evaluation justifying acceptability of leakage for V-27-2. Perform Status: ACC/ASG http://cccmvd0 1 .ceco.com:6 123/cap/sewletlReportARServlet 10/3 1/2006

, AR - Assignment Report Assign Type: CR Priority:

Schedule Ref: Unit Condition:

Sec Grp: ~-~ ~ Page 3 of 3 Orig Due Date: 12/13/2006 Subject/Description:

Perform a cause determination for leakage of V27-2 as required by NE1 94-01 http://cccmvd0

1. ceco. com:6 123/cap/servlet/ReportARServlet 10/3 1/2006

• F,ull Action Request Report Page 1 of9 Go Back Print I New Search 1 Home I AR Number: 00551910 Aff Fac: Oyster Creek AR Type: CR Status: ' APPROVED Aff Unit: 01 Owed To: ACA PA LL Due Date: 12/01/2006 Aff System: 187 Event Date:

10/31/2006 CR 4/D Disc Date: 10/3i/2006, , LevellClass: , How Discovered:

H03A Orig Date: 11/01/2006 Action Request Details

'.

Description:

WATER FOUND IN BAY 17 TRENCH IN DRYWELL .I @I I Originator:

FRANCIS H RAY Supv Contacted:

D. Kettering Condition

==

Description:==

I was notified by an NRC inspector after performing a walkdown in the drywell that the bay 17 trench was full of water and the bay 5 trench was moist. Since the drywell had been restricted from entry due to Radiography being performed I notified the venture planner to develop a work order activity to ensure the following steps were performed as soon as access was restored.

Actions to be taken when drywell entry can be made: 1. obtain a sample of water for chemistry

2. have Chemistry enter the drywell with maintenance

3. have a structural engineer enter the drywell with maintenance to reinspect the caulk and see if the source of the water can be identified.

4. measure the depth of the water from bay 17. 5. remove the water from bay 17. Immediate actions taken: 1.Notified work group to create work order activity to implement action plan once drywell entry was restored and document findings in IR. 2. Notified OCC. Recommended Actions: 1. have chemistry enter the drywell with maintenance (complete)

2. have a structural engineer enter the drywell with maintenance to reinspect the caulk and see if the source of the water can be identified. (complete)

3. measure the depth of the water from bay 17. (complete)

4. remove the water from bay 17. (complete)

5. Chemistry to provide engineering with results of sample 6. Reinforce with all personnel entering drywell to immediately indentify any unexpected water discovered to engineering using the IR process. (Drywell Access point) 7. Perform inspections on a frequent basis to inspect trough, bay 5 and http://cccmva0

1. ceco. com:6 123/cap/servlet/ReportFullARServlet 1 1 /5/2006

' Full Action Request Report Page 2 of 9 bay 17 trenches, and caulking conditions around perimeter of drywell shell to concrete interface. (engineering)

Sunday 10/30. The impact of water in Bay 5 trench previously identified by IR 0546049 is already being evaluated and will include this impact. Were there any adverse physical conditions?

Conditions are already being evaluated by IR 0546049, List of knowledgeable individuals:

3. Burt, C. Lambert, D. Ryan, D. Kettering, M. Hand, S. Markos Repeat or similar condition?

IR 0546049 Operable Basis: REB This water does not impact DW operability on a short term basis. Source of water will be eliminated prior to startup. The trenches will be filled prior to startup which will preclude them from collecting water. ' Reportable Basis: N/A SOC Reviewed by: STEVEN E GANSS 11/03/2006 10:18:49 CST SOC Comments:

11/1 sg AR pullled through needs shift review 11/1/06 tas IR 551897 closed to this IR (appears to be a duplicate).

Recommended actions 1 thru 7 are complete or are being implemented by existing procedures.

Close to evaluations being performed under IR 546049 to determine source of water. http://cccmva0 1 .ceco.com:6 123 /cap/servIet/ReportFullARServlet 11/5/2006

' Full Action Request Report Page 3 of 9 Assign #: 01 AR#: Q0551910 Aff Fac: Oyster Creek Assign Type:

TRKG Status: COMPLETE Priority:

Assigned To: Due Date:

11/06/2006 Schedule Ref Prim Grp:

ACA PA LL Orig Due Date: ~JIJ/IJIJ/IJP~JP Unit Condition: Sec Grp: Assignment Details I I Subject/Description:

WATER FOUND IN BAY 17 TRENCH IN DRYWELL Assignment Completion 1, In Progress Notes:

I 1, Completion Notes: , http://cccmva0

1. ceco.com:

6 123/cap/servIet/ReportFullARServlet 1 1 /5/2006 Full Action Request Report Page 4 of 9 ~~ ~ Assign #: 02 AR #: 00551910 ~~ ~ Status: COMPLETE Aff Fac: Oyster Creek Assign Type: ACIT Priority:

Assigned To: U777RJA Due Date: 11/07/2006 Scheduie Ref: Unit Condition:

Prim Grp: A5332CHEM Orig Due Date: 11/07/2006 Sec Grp: Issignment Details Subject/Description:

Document results of Bay 17 Trench Water Sample Document results of Bay 17 Trench Water Sample taken on 10/31. Iss ig n ,m e n t Completion In Progress Notes:

The radioisotopic analysis is attached below. Some explanation is required:

1. The question marks in front of Cr-51 and Rh-105 indicate that the software cannot distinguish between these two radionuclides.

We re-counted another sample from the same source and the shorter-lived nuclide (Rh-105) was no longer present as it had decayed away. Cr-51 was still present. Therefore the correct radionuclide identified is Cr-51. 2. With the exception of Ag-llOm and Cs-137, the radionuclides present in the sample are corrosion products.

3. The Reactor Building Closed Cooling Water (RBCCW) system is treated with a sodium molybdate corrosion inhibitor.

We therefore tested the water sample for molybdate and the value was just above the minimum detectable limit (15 ppm). Since 11 gallons of water was removed from Bay 17 trench, the source of the water is NOT solely from RBCCW. Calculations show that only 0.65 gallons out of the 11 gallons of water removed from the Bay 17 trench could be RBCCW. The remaining 10.35 gallons is NOT from RBCCW. Radionuclide Data Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (uCi/mL ) Uncertainty

? CR-51 0.991 4.33E-005 1.16E-005 MN-54 0.975 3.38E-004 9.76E-006 CO-58 0.973 7.59E-005 3.41E-006 FE-59 0.846 1.84E-005 1.78E-006 CO-60 0.970 3.17E-004 5.38E-006 ZN-65 0,967 1.28E-003 2.71E-005 X NB-97 0.906

? RH-105 0.551 2.24E-005 5.99E-006 AG-11OM 0.374 8.87E-006 8.62E-007 CS-137 0.992 l.lOE-005 1.01E-006 Total Activity 2.12E-003

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis @I = nuclide contains energy lines not used in Weighted Mean http://cccmva0 1 .ceco.com:6123/cap/servlet/lieportFullARServlet 1 1 /5/2006 I Full Action Request Report

' Page5of9 Activity Errors quoted at 1.000 sigma I , *_( _*'& Completion Notes: I I http://cccmva0 1 .ceco.com:6123/cap/servlet/ReportFullARServlet 11/5/2006

- ' Full Action Request Report Page 6 of 9 Assign #: 03 AR #: 00551910 Aff Fac: Oyster Creek Assign Type:

ACIT Status: COMPLETE Priority:

Assigned To: UOOlFHR Due Date:

11/05/2006 Schedule Ref: Prim Grp: A5352NESDM Orig Due Date: 11/05/2006 Unit Condition: Sec Grp: / Assianmen t Details Subject/Description:

Results of Engr Inspection of Water in Bay 17 Trench Document the inspection results Of the Engineering inspections performed on 11/1/2006 to investigate cause of water found in the Drywell Bay 17 trench. Assignment Completion In Progress Notes:

INSPECTION REP0 RT Date: 11/01/2006, 0030 hrs Work Order No.: C2013726-06 Structure:

Drywell Trench Location:

El. 10'-3", Bay 17 (Az. 287) and perimeter Scope of Structural Work: 1. Reinspect caulk in Bay 17. 2. Perform inspection to try to determine where water is coming from.

Attendees:

M. Hand (Engineering), 3. Gujenko (Venture), G. Test (Chemistry)

Activities

/ Observations:

? The depth of water in the Bay 17 trench was measured and found to be 12 ? inches deep, one inch below the top edge of the hole. (See attached Photo 1.) ? Chemistry took a sample of water for analysis.

? Engineering visually inspected the caulking around the perimeter of the drywell vessel at the concrete interface. The caulking was found to be satisfactory with one exception:

At Bay 9, a 1 inch section of caulking is missing and the backer rod is protruding from the gap. (See attached Photo 2) This issue is being corrected under ECR 06-00879 ? Venture removed the water in the trench and collected it in a five gallon bucket for a total amount removed of 11 gallons. The trench surface was towel dried. ? Careful observation of the trench surfaces resulted in barely perceptible, slight seepage of water from the damp trench surface. Seepage was too slow to collect at the bottom and measure. (See Photo No. 3.) It was later reported by B. Maze that Chemistry reported no florizene was found in the water sample. Refer to the chemistry report for further detail. (Not attached)

I Michael Hand Structural Engineer http://cccmvaO 1 .ceco.com:

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' F,ull Action Request Report

' Page7of9 , I Photo 1 - Depth of water in Bay 17 found t6 be 12 ? inches deep. I I Photo 2 - 1 inch missing caulking, Bay 10 Photo No. 3 - Emptied, towel dried trench. Slight seepage at concrete I surface was observed I( 1, I -*- Completion Notes: Inspections complete and documented in the in-progress notes. I http://cccrnvaOl .ceco.com:6123/cap/servlet/ReportFullARServlet 1 1 /5/2006 I INSPECTION REPORT Date: 11/01/2006, 0030 hrs Work Order No.:

(22013726-06 Structure: Drywell Trench Location:

Scope of Structural Work: El. 10'-3", Bay 17 (Az. 287) and perimeter

1. Reinspect caulk in Bay 17. 2. Perform inspection to try to determine where water is coming from. Attendees

M. Hand (Engineering), J. Gujenko (Venture), G. Test (Chemistry)

Activities

/ Observations:

The depth of water in the Bay 17 trench was measured and found to be 12 ?h inches deep, one inch below the top edge of the hole. (See attached Photo 1.) Chemistry took a sample of water for analysis. Engineering visually inspected the caulking around the perimeter of the drywell vessel at the concrete interface.

The caulking was found to be satisfactory with one exception: At Bay 9, a 1 inch section of caulking is missing and the backer rod is protruding from the gap. (See attached Photo 2) This issue is being corrected under Venture removed the water in the trench and collected it in a five gallon bucket for a total amount removed of 11 gallons. The trench surface was towel dried. Careful observation of the trench surfaces resulted in barely perceptible, slight seepage of water from the damp trench surface.

Seepage was too slow to collect at the bottom and measure. (See Photo No. 3.)

ECR 06-00879 It was later reported by B. Maze that Chemistry reported no florizene was found in the water sample. Refer to the chemistry report for further detail. (Not attached) Michael Hand Structural Engineer Photo 1 - Depth of water in Bay 17 found to be 12 V2 inches deep.

Photo 2 - 1 inch missing caulking, Bay 10 Photo No. 3 - Emptied, towel dried trench. Slight seepage at concrete surface was observed

' Full Action Request Report Page 8 of 9 I PlMS AR Number: A2153650 Facility:

Oyster Creek AR Type: CM ARSubType:

Priority:

Ctd: F Status: PLNNED Task Type: Sched Code: lR21 Sched Window: 187 Assigned Org: OMV Assigned Ind: BURT, JOHN 4665 Component Component 1 Component 187 Unit: System: , Component M Catego*: Component NROl Number: Component VS Type: Component DRYWELL Name: PlMS AR Details Title: WATER FOUND IN BAY 17 TRENCH IN DRYWELL

Description:

• • • AUTHORIZED NUCLEAR INSPECTOR (ANI) REQUIRED *** ORIGINATOR: FRANCIS H RAY SUPV CONTACTED:

D. KElTERING CONDITION DESCRIPTION:

I WAS NOTIFIED BY AN NRC INSPECTOR AFTER PERFORMING A WALKDOWN IN THE DRYWELL THAT THE BAY 17 TRENCH WAS FULL OF WATER AND THE BAY 5 TRENCH WAS MOIST. SINCE THE DRYWELL HAD BEEN RESTRICTED FROM ENTRY DUE TO RADIOGRAPHY BEING PERFORMED I NOTIFIED THE VENTURE PLANNER TO DEVELOP A WORK ORDER ACTIVITY TO ENSURE THE FOLLOWING STEPS WERE PERFORMED AS SOON AS ACCESS WAS RESTORED.

ACTIONS TO BE TAKEN WHEN DRYWELL ENTRY CAN BE MADE: 1. OBTAIN A SAMPLE OF WATER FOR CHEMISTRY

2. HAVE CHEMISTRY ENTER THE DRYWELL WITH MAINTENANC

3. HAVE A STRUCTURAL ENGINEER ENTER THE DRYWELL WITH MAINTENANCE TO REINSPECT THE CAULK AND SEE IF THE SOURCE OF THE WATER CAN BE IDENTIFIED.

4. MEASURE THE DEPTH OF THE WATER FROM BAY 17. 5. REMOVE THE WATER FROM BAY 17. IMMEDIATE ACTIONS TAKEN: 1.NOTIFIED WORK GROUP TO CREATE WORK ORDER ACTIVITY TO IMPLEMENT ACTION PLAN ONCE DRYWELL ENTRY WAS RESTORED AND DOCUMENT FINDINGS IN IR. 2. NOTIFIED OCC. RECOMMENDED ACTIONS: 1. HAVE CHEMISTRY ENTER THE DRYWELL WITH MAINTENANCE (COMPLETE)

2. HAVE A STRUCTURAL ENGINEER ENTER THE DRYWELL http://cccmva0 1 . ceco. com: 6 1 23/cap/servl et/ReportFull ARS ervlet 1 1/5/2006 Full Action Request Report Page 9 of 9 WITH MAINTENANCE TO REINSPECT THE CAULK AND SEE IF THE SOURCE OF THE WATER CAN BE IDENTIFIED. (COMPLETE)

3. MEASURE THE DEPTH OF THE WATER FROM BAY 17. (COMPLETE)

4. REMOVE THE WATER FROM BAY 17. (COMPLETE)

5. CHEMISTRY TO PROVIDE ENGINEERING WITH RESULTS OF SAMPLE 6. REINFORCE WITH ALL PERSONNEL ENTERING DRYWELL TO IMMEDIATELY INDENTIFY ANY UNEXPECTED WATER DISCOVERED TO ENGINEERING USING THE IR PROCESS. (DRYWELL ACCESS POINT) I 7. PERFORM INSPECTIONS ON A FREQUENT BASIS TO INSPECT TROUGH, BAY 5 AND BAY 17 TRENCHES, AND CAULKING CONDITIONS AROUND PERIMETER OF DRYWELL SHELL TO CONCRETE INTERFACE. (ENGINEERING)

I 8 OPERABLE BASIS: REPORTABLE BASIS '* SOC REVIEWED BY: STEVEN E GANSS 1(1/01/2006 11:13:54 CST 11/1 SG AR PULLLED THROUGH NEEDS SHIFT REVIEW THIS AR WAS CHILD TO A2152754 AND ACT 07 ON WORK ORDER C2013726 ADDRESSES THIS WORK 1, I SOC C'OMMENTS:

http://cccmvaO1 .ceco.com:6 1 23/cap/servlet/ReportFullARServlet 1 1 /5/2 006 Exelon Nuclear Issue Entry Yage 1 01 1 @ Create another New Issue @Create another Issue from '00545251' - Print Close window **AS REQUIRED, PRINT ISSUE REPORT AND PROVIDE TO YOUR SUPERVISOR** Note: This is your only notice. You will not have an opportunity to print this confirmation later. Exelon Nuclear Issue - Statement of Confirmation Issue #: 00545251 Originator: MARTIN E MCALLISTER Submit Date: October 17,2006 Basic Information Oyster Creek 10/17/2006 14:OO H02 10/17/2006 14:OO 01 Affected Facility:

Dscv Date: How Discovered Code: Event Date: Affected Unit: Affected Sys:

Subject:

- WORK ORDER ACTIVITY C2013479-02

&. 03 PARTIALLY COMPLETED.

Required Information Work Order description (C2013479-02, 03) states in part "remove existing sealant", however only a small portion of the existing sealant was removed and the both activities were closed. This impacted the timeldose for NRC Rep. and the NDE crews. Notified maint.

of issue. re-open activity 02 & 03, close to trend Condition

==

Description:==

,mmediate actions taken: Recommendation for action: Supervisor Verbally John Leonard Contacted Optional Additional information Routing ACAPALL Owed To Group: Routed to Group: CR-OSC http ://cccmvaO 1 .ceco.com:6 1 23/cap/servlet/OriginatorServlet 10/17/2006

__ .- -/-e--

5- AR - Assignment Report Page 1 of 1 Go Back Print I New Search I Home AR 00545422 Report Aff Fac: Oyster Creek AR Type: CR Status: APPROVED 4ff Unit: 01 Owed To: ACAPALL Due Date:

11/17/2006 Aff System: 187 Event Date: 101 1712006 CR Level/Class:

1 Disc Date: 101 1712006 How H01 Orig Date:

10/18/2006 Discovered:

WWPIMS AR: Component

1. ktion Request Details

Description:

AS FOUND CONDITION OF DRYWELL LINER TRENCHES Originator:

KARL F FISHER Supv Contacted: Frank Stulb Condition Description

On 10/17/06 NDE personnel attempted to perform the scheduled VT-1 and UT examinations of the drywell liner in the existing trenches in Bays 5 & 17. The work order for this activity is C2013479. The examinations were scheduled to follow the removal of sealant material from the trenches.

The NDE examinations could not be performed due to the as found conditions in the trenches.

There was evidence of water in each of the trenches.

Approximately 5" of water was noted in Bay 5. In Bay 17 there was evidence of moisture at the bottom of the trench, but no standing water was present. In both trenches the drywell liner surface is not clean enough to perform the visual and ultrasonic examinations.

Immediate actions taken: Photographs were taken of the as found conditons and Site Engineering and the OCC were notified.

Recommended Actions: Prepare the liner surfaces for the visual and ultrasonic examinations.

Operable Basis: Reportable Basis: 4ssignments Assigned To: Status:

AWAIT/C 01 Assign #: Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date: 10/23/2006 - Assign Type:

TRKG Sec Grp: Orig Due Date: w/w/cIcIcIcI Priority:

Schedule Ref: 'ynit Condition:

I Subject/Description:

AS FOUND CONDITION OF DRYWELL LINER TRENCHES \ I http://cccmvd0 1 .ceco.com:6 123/cap/servlet/ReporttARServlet 1011 812006 AR 00546049 Report Aff Fac: Oyster Creek AR Type: CR Status: APPROVED Aff Unit: NA Owed To: ACAPALL Due Date:

11/18/2006 Aff System: 187 Event Date: 10/19/2006 CR / Level/Class:

How H02 Discovered:

Disc Date: 101 19/20 06 Orig Date: 1 O/ 19/200 6 WWPIMS AR: Component

1. 187 Action Request Details

Subject:

WATER OBSERVED COMING INTO THE TRENCH IN BAY 5 OF DRYWELL I

Description:

Originator:

RALPH C LARZO Supv Contacted:

SOM, OOM on night shift I Condition

Description:

While performing an inspection of the drywell trenches, leakage into the bay 5 trench was observed to be approximately 1 quart per minute. The level in the trench would fill to approx. 5" and stabilize.

The source of the leakage is not apparrent.

Immediate actions taken: OCC was notified and an action plan prepared.

Recommended Actions: 1. Issue ACIT to prepare an action plan and evaluate impact of leakage. 2. Issue AR to perform the following:

a) Test 1-8 sump for leakage by turning of sump pumps, raise level to high level setpoint (using a hose) and monitoring for level decrease.

Monitor sump level for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. b) Attempt to remove water from bay 5 trench until dry and c) If unable to stop water coming into bay 5 trench, then Chemistry to evaluate use of tracing agent injected into 1-8 sump. What activities, processes, or procedures were involved? Drywell inspections Why did the condition happen? Unknown at this time What are the consequences?

Leakage could impact drywell Were any procedural requirements impacted?

No I Were there any adverse physical conditions?

Unknown until leakage sourse identified.

List of knowledgeable individuals:

Chris Wilson, Howie Ray Repeat or similar condition?

No Operable Basis: http://cccmvaO1 .ceco.com:6 123/cap/servlet/ReportARServlet 10/19/2006 Reportable Basis: Assignments Assign #: - 01 Assigned To: Status: AWAIT/C Aff Fac: \Oyster Creek Prim Grp:

ACAPALL Due Date: 10/24/2006 Assign Type: TRKG Sec Grp: Orig Due Date: pp/pcIJpi.~pt.~

Priority:

Schedule Ref: Unit Condition:

Subject/Description:

WATER OBSERVED COMING INTO THE TRENCH IN BAY 5 OF DRYWELL http://cccmvaOl .ceco.com:6 123/cap/servlet/ReportARServlet 10/19/2006

_- -AR - Assignment Report Go Back Page 1 of2 Print I New Search I Home AR 00548568 Report ,ff Fac: Oyster Creek AR Type: CR Status: APPROVED iff Unit: 01 Owed To: ACAPALL Due Date:

11/24/2006 Lff System: 225 Event Date:

10/25/2006 Disc Date: 1 012 512006 :R 41 D .evel/Class:

low H02 Orig Date:

10/25/2 00 6 )iscovered:

YWPIMS AR: A2153079 Component

1. V-15-28 ction Request Details jubject: Iescription:

LLRT - V-15-28 EXCEEDED LIMIT REQUIRING WORK , L, Originator:

DAVE OLSZEWSKI Supv Contacted: Steve Hutchins . .. Condition Description

Procedure 665.5.006 Data Sheet # 7 states that V-15-28 Administrative Limit is 1.5 SCFH when the test volume is pressurized to 35 +3/-0 psig. At a pressure of 36.21 psig, a leak rate of 21.28 SCFH was obtained and with a 2% tolerance (0.848 SCFH) equals 22.13 SCFH and this causes V-15-28 to exceed the stated administrative limit. Immediate actions taken: Wrote this IR Recommended Actions: 1. Create an AR to repair V-15-28 2. Perform an As-Left LLRT Test after performing the Maintenance.

3. Perform cause determination for why leakage occurred as required by NE1 94-01. What activities, processes, or procedures were involved?

Why did the condition happen? Possible degradation of valve seat What are the consequences?

Administrative limits were established as an indicator of potential degradation, which would require maintenance to be performed, or an evaluation as to why maintenance was not required.

The Technical Specifications Section 4.5.D.1 for Type B and C tests states that the maximum allowable leakage rate for Primary Containment is 0.6 La (255.6 SCFH per ER-OC-380 section 9.0). The As-Left MXPLR for 1R20 was 108.07 SCFH, which was well below the acceptance criteria of 255.60 SCFH. The valve, V-15-28, needs to have maintenance to repair the leak and then another LLRT (As-Left) test needs to be performed with acceptable results so the station does not exceed the limit of 255.60 SCFH. LLRT Of V-15-28 Were any procedural requirements impacted?

665.5.006 Data Sheet # 7 Were there any adverse physical conditions?

http://cccmvd0 1 .ceco. corn: 6 123/cap/servletReportARServlet 10/3 1/2006

.__ -AR - Assignment Report Page 2 of 2 No List of knowledgeable individuals:

S. Hutchins, M. Carlson, L. Conova, 6. Barbieri, D. Ferris, and D. Olszewski Repeat or similar condition?

No Operable Basis: REB Valve has failed its LLRT and is not operable.

Must be repaired prior to Startup. Reportable Basis: N/A SOC Reviewed by: MARCIA PRUSKOWSKI 10/26/2006 09:32:

13 CDT SOC Comments:

10/26/06 TAP - Significance level 4 because Tech Spec limits were not exceeded.

Need PIMS AR to repair valve and perform as-left LLRT. Created assignment to perform cause determination per NE1 94-01. Close to pIMS AR and assignment.

Dynamic AR Attributes OUTAGE RELATED: 1R21 ADD MEV 14 ksig nmen ts Assign #: - 01 Assigned To: Status: COMPLETE Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date:

10/30/200 6 Assign Type: TRKG Sec Grp: Orig Due Date:

IJIJ/PIJ/IJIJC~IJ Priority:

Schedule Ref: Unit Condition:

Subject/Description:

LLRT - V-15-28 EXCEEDED LIMIT REQUIRING WORK Assigned To: UOOOLC3 Status: ACC/ASG Aff Fac: Oyster Creek Prim Grp: A5351NESPR Due Date: 11/20/2006 Assign Type: ACIT Sec Grp: Orig Due Date: 11/01/2006 Priority:

Schedule Ref: Unit Condition:

Subject/Description:

leakage occurred as required by NE1 94-01. V-15-28 LLRT leakage exceeded admin limits. Perform caus e determination for why http://cccmvd0 1 .ceco.com:6 123/cap/servlet/ReportARServlet 10/3 1/2006

_. - A& - Assignment Report Page 9 of 34 AR 00551 897 Report CR Status: APPROVED iff Fac: Oyster Creek AR Type: iff Unit: 01 Owed To: A5320CAP Due Date:

1210 11200 6 iff System: 240 Event Date: 10/31/2006 5/D Disc Date: 1013 1/20 06 :R .evel/Class:

H02 Orig Date:

1110 112006 low

%covered:

lVR/PlMS AR: Component

1. ,ction Request Details

Subject:

3escription:

NRC IDENTIFIED WATER IN BAY 17 TRENCH Originator:

JAMES 3 MCELWAIN Supv Contacted: Howie Ray Condition

Description:

Engineering was notified that the bay 17 trench in the drywell was full of water and bay 5 was only moist.

Immediate actions taken: Notified Engineering Management and the OCC. A work order was created to investigate the water and perform the following steps: 1. Obtain a sample of water for chemistry

2. Have chemistry enter the drywell with Venture 3. Have a structural engineer enter the drywell with Venture to re-inspect the caulk and see if the source of water can be identified

4. Measure the depth of the water from bay 17 5. Remove the water from bay 17 Entry into the drywell was delayed due to radiography, when the entry was made the following was identified and documented:

1. Inspected bay 17 and found standing water approximately 12.5 deep 2. Entry made by Venture Task Manager, Engineering and Chemistry

3. Sample of water obtained by chemistry

4. Engineering inspection performed

5. Water was within 1 of the floor, removed approximately 11 gallons and dried area with rags Recommended Actions: Venture to determine if bay 17 trench had been dewatered previously, IF yes THEN when was the water removed. Engineering to determine the source of the water What activities, processes, or procedures were involved?

NRC identified water in bay 17 trench Why did the condition happen? Unknown, follow-up to determine source of water. List of knowledgeable individuals:

Howie Ray, 1. Guzenko http://cccmva0 1 .ceco.com:6123/cap/servlet/ReportARServlet

-- 11/2/2006

/X - Assignment Report Page 10 of 34 Repeat or similar condition?

Yes Operable Basis: N/A Reportable Basis: N/A SOC Reviewed by: 11/01/2006 14:46:11 CST SOC Comments:

11/1/06 tas Close to IR 551910. ~~~ 9ssignmen ts Assign #: gJ Assigned To: Status: AWAIT/C Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date: 11/06/2006 Assign Type:

TRKG Sec Grp: Orig Due Date: Priority: Schedule Ref:

Unit Condition:

Subject/Description:

NRC IDENTIFIED WATER IN BAY 17 TRENCH http://cccmvaO1 .ceco.com:6 123/cap/servlet/ReportARServlet 11/2/2006

, AR - Assignment Report "6, Go Back Page 1 of 3 c cs Print I New Search I Home AR 00546049 Report I Aff Fac: Oyster Creek AR Type: CR Status: APPROVED Aff Unit:

NA Owed To: ACAPALL Due Date:

12/0 112006 Aff System: 187 Event Date: 101 191 20 06 CR LeveUClass:

3/D Disc Date:

1 O/ 19/2006 How H02 Orig Date:

10/19/2006 I Discovered:

WFUPIMS AR: A2152838 Component

1. 187 List of knowledgeable individuals:

Chris Wilson, Howie Ray Repeat or similar condition?

No I ~~ Action Request Details 4

Subject:

WATER OBSERVED COMING INTO THE TRENCH IN BAY 5 OF DRYWELL Originator:

RALPH C LARZO Supv Contacted:

SOM, OOM on night shift

Description:

I Condition

==

Description:==

While performing an inspection of the drywell trenches, leakage into the bay 5 trench was observed to be approximately 1 quart per minute. The level in the trench would fill to approx. 5" and stabilize.

The source of the leakage is not apparrent.

Immediate actions taken:

OCC was notified and an action plan prepared.

Recommended Actions: 1. Issue AClT to prepare an action plan and evaluate impact of leakage. 2. Issue AR to perform the following:

a) Test 1-8 sump for leakage by turning of sump pumps, raise level to high level setpoint (using a hose) and monitoring for level decrease.

Monitor sump level for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. b) Attempt to remove water from bay 5 trench until dry and c) If unable to stop water coming into bay 5 trench, then Chemistry to evaluate use of tracing agent injected into 1-8 sump. What activities, processes, or procedures were involved?

Drywell inspections Why did the condition happen? Unknown at this time What are the consequences?

Leakage could impact drywell No http://cccmvdO 1 .ceco.com:6 123/cap/servlet/ReportARServlet 11/1/2006 AR - .Assignment Report Reportable Basis: N/A I ~~ Page 2 of 3 c Operable Basis: RE6 - Long term corrosion issue - Drywell is fully operable.

SOC Reviewed by: THOMAS A POWELL 10/21/2006 08:21:52 CDT SOC Comments:

10-19-06 REB Close to the PIMS AR. IR 545422 is closed to this IR. Followup to ENG 10/21/06 TAP - Risk and Uncertainty of this condition screen as Medium and Medium. ACE evaluation to Egnineering to determine the source of water and evaluate the physical and regulatory consequences of this condition.

PORC review of the ACE is a lR2l Restart Requirement.

Close to PIMS AR and ACE evaluation.

I Dynamic AR Attributes OUTAGE RELATED: 1R21 ADD 10/22 MEV14 Trend Codes TC2 TC3 Proc MM N ERlOO Org Rank P

• Assignments Assign #: - 01 Assigned To: Status: COMPLETE Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date: 10/24/2006 Assign Type: TRKG Sec Grp: Orig Due Date: IJP/IJP/IJIJIJIJ Priority:

Schedule Ref: Unit Condition:

Subject/Description:

WATER OBSERVED COMING INTO THE TRENCH IN BAY 5 OF DRYWELL Assign #: - 02 r Assigned To: UOOlFHR Status: NTFY/ASG Aff Fac: Oyster Creek Prim Grp: A5352NESDM Due Date: 11/01/2006 Assign Type: ACIT Sec Grp: Orig Due Date: 11/01/2006 Priority:

Schedule Ref: Unit Condition:

Document Tech eval resuts of inleakage to the drywell floor trenches. Tech EVAL reference PIMS SubjectlDescription:

AR A2152754 06. I Assign #: - 03 Assigned To: Status: NTFY/PRI http://cccmvd0 1 .ceco.com:6 123/cap/servlet/ReportARServlet 11/1/2006 AR - ,Assignment Report Page 3 of 3 Aff Fac: Oyster Creek Prim Grp: A5301RAPR Due Date: 11/02/2006 Assign Type: CA Sec Grp: Orig Due Date: Priority:

Schedule Ref: Unit Condition:

Subject/Description:

Perform PORC review of DW Trench ACE prior to lR2l restar t. Assign #: Aff Fac: Assign Type: Priority:

Schedule Ref: Unit Condition:

Subject/

Description:

04 Assigned To: U999A02 Status: NTR/ P RI - Oyster Creek Prim Grp: A5063NER Due Date: 12/01/2006 ACIT Sec Grp: Orig Due Date: 12/01/2006 Determine effect on the License Renewal Application Based on the conditions found in the trench determine the effect of this operating experience on the License Renewal Application and initiate appropriate actions as needed to support the ongoing efforts to renew the operating license. Assign #: - 05 Assigned To: U999A02 Status: NTFY/PRI Aff Fac: Oyster Creek Prim Grp: A5063NER Due Date: 12/01/2006 Assign Type: ACIT Sec Grp: Orig Due Date: 12/01/2006 Priority:

Schedule Ref: Unit Condition:

Based on the review of assignment

1. 4 of this IR, determine if there are any reporting requirements to the NRC in accordance with lOCFR 54.13 "Completeness and accuracy of information", if there is any updates to the supplement that needs to be submitted under another provision of lOCFR Part 54. SubjecuDescription:

http://cccmvd0 1 .ceco.com:6 123/cap/servIetlReportARSen~let 11/1/2006 AR Assignment Report Page 1 of 2 -3 Go Back Print I New Search I Home AR 00547236 Report APPROVED CR Status: Aff Fac: Oyster Creek AR Type: Aff Unit: NA Owed To: ACAPALL Due Date: 11/20/2006 Aff System: 187 Event Date: 10/21/2006 CR LevelKlass:

4/D Disc Date:

10/21/2006 How Discovered:

H02 Orig Date: 10/2 1/2006 WWPIMS AR: A2152843 Component

1. 573 ~ ~ ~ Action Request Details

Subject:

DEBRIS LOCATED IN BAYS 7 AND 11 SANDBED DRAIN LINES

==

Description:==

Originator:

PETER TAMBURRO Supv Contacted: Howie Ray Condition

Description:

Inspection of the Sandbed Drain Lines in accordance with Specification IS-328227-004 Rev. 13 showed that the drain line in bay 7 has debris, which could cause blockage of this he. The debris looks like loose concrete. This does not meet the acceptance criteria in the specification per section 3.2.5.2. In addition the inspection of the drain line in bay 11 shows some loose debris in the bottom of the line directly downstream of the first elbow. However the line is not blocked and meets the acceptance criteria.

Operability The purpose of the drain lines is to route water in the sandbed from the drywell vessel. At this time the remaining 4 lines are capable of performing this function.

In addition since the line in bay 7 is not completely blocked it too would partially perform its function by draining the sandbed. So far in 1R21 no water has entered the sandbed. Engineering has inspected the 5 bottles every day since the beginning of the outage (R2088495).

To date no water has been found in any of the bottles or on the floor outside the sandbed bays.

Also Engineering and/or NDE have inspected all 10 Drywell Sandbed bays.

To date no water or moisture has been observed in these bays and the coating is in good condition,.

Engineering will continue to monitor (on a daily basis) the trough drain line for changes in flow rate and the five polyvinyl bottles for water. Immediate actions taken: Informed Howie Ray and the Engineering Control Center Recommended Actions: 1) Continue to monitor the five poly bottles and trough drain line daily per our commitments

2) Recommend cleaning the drain lines in bays 7 and 11. Operable Basis: I http://cccmvd0 1 .ceco.com:B 123/cap/servlet/ReportARServlet 10/3 1 /20(

AR - Assignment Report Page 2 of 2 10/22/06 (G.V) There are no discrepancies noted here in reference to the DW structure.

There is no effect on this components Operability.

Primary Containment is currently relaxed for Refueling Operations.

Reportable Basis: 10/22/06 (G.V) There is no effect on this components Operability.

No Reportability requirements Reviewed by: GEORGE 3 VOISHNIS JR 10/22/2006 12:22:07 CDT Review e r Co mm en ts : SOC Reviewed by: THOMAS A POWELL 10/22/2006 15:50:46 CDT SOC Comments:

10/22/06 TAP - Close to PIMS AR to remove debris from drains as described.

Dynamic AR Attributes OUTAGE RELATED: lR2l ADD 10/22 Assignments 01 Assigned To: Status: COMPLETE Assign #: - I Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date: 1 O/ 261 2 00 6 Assign Type: TRKG Sec Grp: Priority:

Schedule Ref: Unit Condition:

Orig Due Date: Wclcllclwcl Subject/Description:

DEBRIS LOCATED IN BAYS 7 AND 11 SANDBED DRAIN LINES http://cccmvd0 1 .ceco.com:6 123/cap/servlet/ReportARServlet 10/3 I /20(

• • • ACTION REQUEST A/R TYPE : CM ETT REQUEST ORG : OED REQUEST DATE: 220CT06 REQUESTED BY: TAMBURRO *** PAGE : A/R NUMBER : A2152843 A/R STATUS : HISTRY STATUS DATE: 310CT06 LAST UPDATE: 310CT06 PRINT DATE

310CT06 A. Maintenance Unit Related Information.

FEG: OC 1 573 000 DESC: DRYWELL FLOOR Si EQUIPMENT DRAINS-PIPING ETT/EDT: ETT/EDT#:

00000000 TAG LOCATION: MAIN CONTROL ROOM DEFICIENCY TAG LOCATION: TASK TYPE: EM MOD NUMBER:

RW INPUT: N SCHED CODE/WINDOW:

1R21 573 CEGO ALTERNATE

FACILITY:

EQUIPMENT LOCATION:

COMP ID: OC 1 573 P P 573 UNIT : - SYSTEM: B. Detail Description and Review of the Problem.

SUMMARY

DESC: DEBRIS LOCATED IN BAYS 7 AND 11 SANDBED DRAIN LINES ORIGINATOR:

PETER TAMBURRO SUPV CONTACTED:

PXTO 220CT06 HOWIE RAY PXTO 220CT06 CONDITION DESCRIPTION:

PXTO 220CT06 INSPECTION OF THE SANDBED DRAIN LINES IN ACCORDANCE PXTO 220CT06 WITH SPECIFICATION IS-328227-004 REV. 13 SHOWED PXTO 220CT06 THAT THE DRAIN LINE IN BAY 7 HAS DEBRIS, WHICH COULD PXTO 220CT06 CAUSE BLOCKAGE OF THIS LINE. THE DEBRIS LOOKS LIKE PXTO 220CT06 LOOSE CONCRETE.

THIS DOES NOT MEET THE ACCEPTANCE PXTO 220CT06 CRITERIA IN THE SPECIFICATION PER SECTION 3.2.5.2. PXTO 220CT06 PXTO 220CT06 IN ADDITION THE INSPECTION OF THE DRAIN LINE IN PXTO 220CT06 BAY 11 SHOWS SOME LOOSE DEBRIS IN THE BOTTOM OF PXTO 220CT06 THE LINE DIRECTLY DOWNSTREAM OF THE FIRST ELBOW. PXTO 220CT06 HOWEVER THE LINE IS NOT BLOCKED AND MEETS THE ACCEPTANCE PXTO 220CT06 CRITERIA.

PXTO 220CT06 PXTO 220CT06 OPERABILITY PXTO 220CT06 THE PURPOSE OF THE DRAIN LINES IS TO ROUTE WATER PXTO 220CT06 IN THE SANDBED FROM THE DRYWELL VESSEL. AT THIS PXTO 220CT06 TIME THE REMAINING 4 LINES ARE CAPABLE OF PERFORMING PXTO 220CT06 THIS FUNCTION.

IN ADDITION SINCE THE LINE IN BAY PXTO 220CT06 7 IS NOT COMPLETELY BLOCKED IT TOO WOULD PARTIALLY PXTO 220CT06 PERFORM ITS FUNCTION BY DRAINING THE SANDBED. SO PXTO 220CT06 FAR IN 1R21 NO WATER HAS ENTERED THE SANDBED. PXTO 220CT06 ENGINEERING HAS INSPECTED THE 5 BOTTLES EVERY PXTO 220CT06 DAY SINCE THE BEGIITNING OF THE OUTAGE (R2088495).

PXTO 220CT06 TO DATE NO WATER HAS BEEN FOUND IN ANY OF THE BOTTLES PXTO 220CT06 OR ON THE FLOOR OUTSIDE THE SANDBED BAYS.

PXTO 220CT06 PXTO 220CT06 10 DRYWELL SANDBED BAYS. TO DATE NO WATER OR MOISTURE PXTO 220CT06 HAS BEEN OBSERVED IN THESE BAYS AND THE COATING PXTO 220CT06 IS IN GOOD CONDITION..

PXTO 220CT06 ENGINEERING WILL CONTINUE TO MONITOR (ON A DAILY PXTO 220CT06 BASIS) THE TROUGH DRAIN LINE FOR CHANGES IN FLOW PXTO 220CT06 RATE AND THE FIVE POLYVINYL BOTTLES FOR WATER. PXTO 220CT06 PXTO 220CT06 PXTO 220CT06 IMMEDIATE ACTIONS TAKEN:

PXTO 220CT06 INFORMED HOWIE RAY AND THE ENGINEERING CONTROL PXTO 220CT06 CENTER PXTO 220CT06 ALSO ENGINEERING AND/OR NDE HAVE INSPECTED ALL 01

• • • ACTION REQUEST

• • • PAGE: 02 A/R TYPE : CM ETT A/R NUMBER

A2152843 REQUEST ORG

OED A/R STATUS : HISTRY REQUEST DATE: 220CT06 STATUS DATE: 310CT06 REQUESTED BY: TAMBURRO LAST UPDATE: 310CT06 PRINT DATE

310CT06 ____________________-------------_----------------------_--------------------

____________________--------------------------------------------------------- PXTO 220CT06 RECOMMENDED ACTIONS

PXTO 220CT06

1) CONTINUE TO MONITOR THE FIVE POLY BOTTLES PXTO 220CT06 AND TROUGH DRAIN LINE DAILY PER OUR COMMITMENTS PXTO 220CT06

2) RECOMMEND CLEANING THE DRAIN LINES IN BAYS PXTO 220CT06 7 AND 11. PXTO 220CT06 PXTO 220CT06 PXTO 220CT06 OPERABLE BASIS: PXTO 220CT06 10/22/06 (G.V) THERE ARE NO DISCREPANCIES NOTED PXTO 220CT06 HERE IN REFERENCE TO THE DW STRUCTURE.

THERE IS PXTO 220CT06 NO EFFECT ON THIS COMPONENTS OPERABILITY.

PRIMARY PXTO 220CT06 CONTAINMENT IS CURRENTLY RELAXED FOR REFUELING OPERATIONS PXTO 220CT06 PXTO 220CT06 REPORTABLE BASIS: PXTO 220CT06 10/22/06 (G.V) THERE IS NO EFFECT ON THIS COMPONENTS PXTO 220CT06 OPERABILITY. NO REPORTABILITY REQUIREMENTS PXTO 220CT06 PXTO 220CT06 REVIEWED BY: GEORGE J VOISHNIS JR 10/22/2006 PXTO 220CT06 12:22:07 CDT PXTO 220CT06 REVIEWER COMMENTS: PXTO 220CT06 PXTO 220CT06 DATE REQUIRED: 220CT06 SUPERVISOR

TAMBURRO RECOMMENDATI0N:A DATE: 220CT06 A/R PACKAGE NBR : A2145130 COMMITMENT NBR : RECURRING TASK NBR: REG DOC CODE: OTHER : ENTRANCE DATE: ISSUE DATE: EXIT DATE: SYSTEM/TOPIC:

C. Failure Determination:

MRULE/EPIX SCOPE: 1 FUNC FAILURE: I UPDATED BY: DATE : E. D. Quality Evaluation Checklist.

QA CLASS :N QE REQUIRED : ACTION REQUEST PLAN INFORMATION REPEAT MAINT: N PEP#: TECH SPEC : y OPERABLE:

1 OUTAGE REQD : TJ POTENTIAL REPT N SSV NOTIFIED:

N NAME: 00547236 DATE : TIME : REQUIRED IN MODES: 1-2 - - SAFE SHUT DOWN: CLEARENCE REQD: - - A/R APPROVED BY: GANSS SEGO DATE: 220CT06 ASSIGNED ORG:

OMPO ASSIGNED INV: OMPO PRI/CTD: A F

SUMMARY

PLAN DESC: THIS IS A CHILD OF A2145130, MDS6. A/R COMPLETED ON WORK ORDER R2088495 ACT 4 RECURRING TASK WORK ORDER NUMBER : R2088495 ACT PRIORITY : 5 STATUS : ASIGND 240CT06 NBR OF ACTS: 05 LAST UPDATE: 01NOV06 PRINT DATE

02NOV06 ** **** ** ** ** ** ** ****** **********

• • ** **********

• • ** ** ** ** **** **** ** **** ** ** ** ** ** ** ** ** ** ** ** ** W/O DESC LEAKAGE MONITORING TORUS, SANDBEDS & RX DRAIN PAGE: 01 AR NUMBER : A2145130 RESPONSIBLE ORG

OEPB APPROVED BY : YARNES,R AR TYPE/SUBTYPE

RT ACT RESP FOREMAN

OEPB OC PLANT ENG BAL PLT MUC : 2 MAINT UNIT FEG : OC 1 187 000 ATTACHMENTS:

r\J M/U COMPONENT ID : OC 1 187 - F MISC 187 MAINT UNIT DESCR

DRYWELL AND TORUS (SEE NROl & TORUS VESSEL) EQUIP REQD MODES

5 QA CLASS :a PROCEDURE NUMBER : EQ :Y COMPONENT UPDATE

N SAFE S/D : k ASME SECTION XI : J- BOM/PART UPDATE

TJ POST MAINT TEST : y MOD NUMBER * -- REPEAT/ PEP NBR : T\J BUSINESS UNIT : 10105 PROJECT: CUSTOMER : SUB ACCT: 517010 PRODUCT : DEPARTMENT:

05330

- RECURRING TASK WORK ORDER ** **********

• • ** NUMBER : R2088495 ACT ** ** ** ** **** ** PRIORITY :5 ** **********

• • ** ** STATUS : ASIGND 240CT06 ** **********

• • ** NBR OF ACTS: 05 ** ** ** ** LAST UPDATE: 01NOV06 ** ** ** ** PRINT DATE

02NOV06 ****** ** ** ** **** **********

• • • • **** W/O DESC LEAKAGE MONITORING TORUS, SANDBEDS & RX DRAIN PAGE: 02

• OC 1 187 - F MISC 187 COMPONENT ID * -- DRYWELL AND TORUS (SEE NROl & TORUS VESSEL)

CHEM/RAD MAP LOCATION : MULTI 000 ASME SECTION XI:

y QA CLASS :o EQ : y RESP FOREMAN

REPEAT REQD

- SSV VERIF *N -- ASME - IS1 BY: - COMPLETE DATE: COMPNT UPDATE : - RMS DOC NBR : BILL OF MATLS : - RMS FILM NBR : REPEAT REQD

- A/R NBR: COMPLETE BY : HISTORY DATE

----------------------------COMPLETION

............................

RE~RKS================================

REPEAT MAINT: PEP NBR: - - -- - - -- - - - - - - - - AS FOUND CONDITION:

ACT 01: FIRST WALKDOWN COMPLETED WITH RX CAVITY FLOODED BY F.STULB 190CT06 NO WATER WAS DETECTED IN THE POLY BOTTLES. FULL WALKDOW 190CT06 190CT06 REPORT BEING GATHERED IN THE LR TEAM ROOM. 190CT06 POLY BOTTLES WERE WALKED DOWN BY PETE TAMBURRO OR BOB BARBIERI 19 OCTO 6 190CT06 ON 10/16, 10/17, 10/18, AND 10/19. NO WATER WAS FOUND IN ALL FIVE BOTTLE. NO WATER WAS FOUND ON TORUS ROOM FLOOR.

SECTION 190CT06 6.1 OF WORK ORDER ENTERED BY PETE TAMBURRO 190CT06 190CT06 TROUGH DRAIN WAS WALKED DOWN BY PETE TAMBURRO ON 10/16, 10/17, 190CT06 AND 10/18 PRIOR TO REACTOR CAVITY FLOOD UP. NO WATER WAS OBSERVED 190CT06 FLOWING TO THE HUB DRAIN.

ENTERED BY PTE TAMBURRO SEC 6.2 190CT06 190CT06 AN 10/19 190CT06 CAVITY FLOOD UP THE TROUGH DRAIN LINE DOWNSTREAM OF V-18-131 190CT06 WAS OBSERVED TO HAVE A SMALL CONITINOUS STREAM OF WATER ENTERING 190CT06 THE HUB DRAIN. THE SIZE OF THE STEAM WAS APROXIMATELY PENCIL 190CT06 SIZE AND ESTIMATED TO BY ABOUT 1 GPM. SEC 6.2 190CTO 6 AT 8:OO AM APPROXIMATELY 12 HOURS AFTER REACTOR

- _- ** ** **** **********

• • • • **** RECURRING TASK WORK ORDER ** **********

• • **** ** ** ** ** ** **********

• • ** ** NUMBER PRIORITY :5 ** ** ** **********

• • ** ** ** STATUS NBR OF ACTS: 05 ** ** ** ** LAST UPDATE: 01NOV06 ** ** ** PRINT DATE : 02NOV06 W/O DESC LEAKAGE MONITORING TORUS, SANDBEDS

& RX DRAIN PAGE: 03 ____________________-----_--

_____-----------------------COMPLETION REMARKS================================

R2088495 ACT : ASIGND 240CT06 ****** - - - - - - - - -- - -- - -- REPEAT MAINT: J- PEP NBR: ON 10/20 AT 1000 200CT06 THE TROUGH DRAIN LINE DOWNSTREAM OF V-18-131 200CT06 WAS OBSERVED BY BOB BARBIERI 2 OOCT 0 6 TO HAVE A SMALL CONITINOUS STREAM OF WATER ENTERING 200CT06 THE HUB DRAIN. THE SIZE OF THE STEAM WAS APROXIMATELY PENCIL 200CT06 SIZE AND ESTIMATED TO BY ABOUT 1 GPM. SEC 6.2 200CT06 200CT06 200CT06 ON 10/20 AT 1O:OO THE 200CT06 POLY BOTTLES WERE WALKED DOWN BY BOB BARBIERI AND WERE 200CT06 NO WATER IN ALL 5 BOTTLES. SEC

6.1 200CT06

200CT06 200CT06 210CT06 ON 10/21 AT 13:30 210CT06 THE TROUGH DRAIN LINE DOWNSTREAM OF V-18-131 210CT06 WAS OBSERVED BY PETE TAMBURRO 210CT06 TO HAVE A SMALL CONITINOUS STREAM OF WATER ENTERING 210CT06 THE HUB DRAIN. THE SIZE OF THE STEAM WAS APROXIMATELY PENCIL 210CT06 SIZE AND ESTIMATED TO BY ABOUT 1 GPM. SEC 6.2 2 10CT 0 6 210CT06 210CT06 ON 10/21 AT 13:30 THE 210CT06 POLY BOTTLES WERE WALKED DOWN BY PETE TAMBURRO AND THERE WAS 210CT06 NO WATER IN ALL 5 BOTTLES. SEC

6.1 210CT06

2 20CTO 6 10/22/06 15:OO - 220CT06 PERFORMED WALK DOWN IN TORUS ROOM AND INSPECTED ALL 5 POLY BOTTLES. 220CT06 ALL WERE DRY, AS WERE THE HOSES. LOOKED UNDER TORUS FOR SIGNS OF 220CT06 WATER; NONE WAS PRESENT 220CT06 2 20CT 0 6 ALSO INSPECTED HUB DRAIN ON 75'. THERE WAS A CONTINUOUS FLOW 220CT06 CATEGORIZED AS A MODERATE SIZE PENCIL STREAM. THIS WAS CONSISTENT 220CT06 WITH PREVIOUS INSPECTIONS.

220CT06 R. BARBIERI 220CT06 230CT06 i0/23/06 m30 - 2 3 OCTO 6 PERFORMED WALK DOWN IN TORUS ROOM AND INSPECTED ALL 5 POLY BOTTLES. 230CT06 ALL WERE DRY, AS WERE THE HOSES. LOOKED UNDER TORUS FOR SIGNS OF 230CT06 WATER; NONE WAS PRESENT 230CT06 230CT06 ALSO INSPECTED HUB DRAIN ON 75'. THERE WAS A CONTINUOUS FLOW 230CT06 CATEGORIZED AS A MODERATE SIZE PENCIL STREAM. THIS WAS CONSISTENT 230CT06 WITH PREVIOUS INSPECTIONS.

230CT06 PETE TAMBURRO 230CT06 240CT06 ;0/24/06, 10:30 - 240CT06 PERFORMED WALK DOWN IN TORUS ROOM. INSPECTED ALL 5 POLY BOTTLES AND 240CT06 CONNECTING TUBING. NO WATER OBSERVED. ALSO INSPECTED UNDER TORUS IN 240CT06 ALL BAYS. NO WATER PRESENT. 240CT06

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• • • • **** ** ** **** ** ** ** NUMBER : R2088495 ACT

• • ** ** ** PRIORITY :A ** **********

• • ** STATUS : ASIGND 240CT06 ** ** ** ** NBR OF ACTS: 05 ** ** ** ** LAST UPDATE: 01NOV06 ** ** PRINT DATE

02NOV06 W/O DESC REPEAT MAINT: PJ PEP NBR: **********

• • RECURRING TASK WORK ORDER ** ****** LEAKAGE MONITORING TORUS, SANDBEDS

& RX DRAIN PAGE: 04 ............................ -COMPLETION RE~RKS================================ - - __ - - - - - - - - - - - - PERFORMED INSPECTION OF REACTOR CAVITY TROUGH DRAIN ON 75'. 240CT06 IS CONSISTENT WITH PAST INSPECTIONS.

LEAKAGE IS STILL A MODERATE 240CT06 PENCIL STREAM AND IS STEADY. 240CT06 R. BARBIERI 240CT06 240CT06 10/25/06 20:30 250CT06 PERFORMED INSPECTION OF REACTOR CAVITY TROUGH DRAIN ON 75' ELEVATION 250CT06 THERE WAS A PENCIL STREAM - NO CHANGE IN FLOW. PERFORMED WALK DOWN 250CT06 OF ALL 5 POLY BOTTLES IN TORUS ROOM. THERE WAS NO WATER PRESENT IN 250CT06 ANY OF THE BOTTLES. 250CT06 CORNER ROOM DOOR (BAY 17). WATER WAS NOTED DRIPPING FROM ABOVE AT 250CT06 ABOUT 60+ DROPS PER MINUTE AND IS ALSO RUNNING DOWN THE SIDE OF THE 250CT06 TORUS AND COLLECTING UNDERNEATH.

250CT06 F. STULB 250CT06 250CT06 10/26/06 14:30 260CT06 INSPECTED TORUS ROOM FOR SIGNS OF WATER. ALL 5 POLY BOTTLES WERE 260CT06 BOTTLE IN BAY 11 WAS EMPTY). DID NOT APPEAR THAT DRYWELL WAS WET, 260CT06 BUT NEED ADDITIONAL INSPECTION TO DETERMINE SOURCE. NOTE THAT 1-6 260CT06 SUMP WAS TAGGED OUT AND WAS OVERFLOWING.

260CT06 WATER IN BAY 11. IR SUBMITTED.

260CT06 260CT06 INSPECTED TROUGH DRAIN.

NO CHANGE FROM PREVIOUS INSPECTIONS. PENCIL 260CT06 STREAM NOTED. 260CT06 R. BARBIERI 260CT06 270CT06 10/27/06 14:30 270CT06 INSPECTED TROUGH DRAIN. NO CHANGE FROM PREVIOUS.

PENCIL STREAM. 270CT06 INSPECTED POLY BOTTLES. NO WATER IN ANY BOTTLES. 270CT06 DRYWELL WALL IN BAY 11, AND DETERMINED THAT DRYWELL WALL WAS WET. 270CT06 COULD NOT FIND SOURCE. NEED TO GO ON TOP OF TORUS. 270CT06 REPORTED TO LICENSE RENEWAL TEAM.

270CT06 ISSUED IR 549432-02 TO INSPECT SAND BED IN BAY 11. 270CT06 R. BARBIERI 270CT06 10/28/06 14 : 00 280CT06 INSPECTED TROUGH DRAIN AND NO CHANGE FROM PREVIOUS INSPECTIONS. 280CT06 THE LEAKAGE WAS PENCIL STREAM SIZE. 280CT06 INSPECTED TORUS ROOM AND ALL 5 BOTTLES WERE EMPTY. NO WATER ON FLOOR 280CT06 EXCEPT IN BAY 11 AS NOTED PREVIOUSLY.

280CT06 DUE TO THIS WATER IN BAY 11, PERFORMED WALKDOWN ON TOP OF TORUS. 280CT06 NOTED WATER LEAKING FROM AROUND VENT PIPE. ABOUT 1 DROP EVERY 10 280CT06 LEAKAGE WATER ON THE FLOOR TO THE LEFT OF NORTHEAST EMPTY. NOTED PUDDLE ON FLOOR NEAR DRYWELL WALL IN BAY 11 (THE POLY- 260CT06 THIS COULD BE THE CAUSE OF FOUND PUDDLE NEAR - - - - - - - - - - I - SECONDS. PE'I'E 'I'HMBUKKU bl\Lb.KfiJJ IUIVIU~~U AIUU ILUJELILIUU iLuuiuu uL vIILv- BED. 280CT06 R. BARBIERI 280CT06 280CT06 10/29/06 13:lO 290CT06 INSPECTED TROUGH DRAIN AND NO CHANGE FROM PREVIOUS INSPECTIONS.

290CT06 THE LEAKAGE WAS PENCIL STREAM SIZE. 290CT06 INSPECTED TORUS ROOM AND ALL 5 BOTTLES WERE EMPTY.

NO WATER ON FLOOR 290CT06 EXCEPT IN BAY 11 AS NOTED PREVIOUSLY.

PETE TAMBURRO 290CT06 THERE WAS NO WATER PRESENT IN SAND BED AREA OR IN THE TUNNEL.

RECURRING TASK WORK ORDER NUMBER : R2088495 ACT PRIORITY :A STATUS : ASIGND 240CT06 NBR OF ACTS: 05 LAST UPDATE: 01NOV06 PRINT DATE

02NOV06 ** **** ** ** ** ** ** ****** **********

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• • ** ** ** ** ** ** ** ** ** ** ~~ ~~ ~~ W/O DESC LEAKAGE MONITORING TORUS, SANDBEDS

& RX DRAIN PAGE: 05 _____________-______--_----- - -----------------COMPLETION RE~RKS================================ REPEAT MAINT:

T\J - - --_-- - PEP NBR: - - -- - --_ 300CT06 10/30/06 21:30 300CT06 PERFORMED INSPECTION OF REACTOR CAVITY TROUGH DRAIN ON 75' ELEVATION 300CT06 THERE WAS A PENCIL STREAM - NO CHANGE IN FLOW. PERFORMED WALK DOWN 300CT06 OF ALL 5 POLY BOTTLES IN TORUS ROOM. THERE WAS NO WATER PRESENT IN 300CT06 ANY OF THE BOTTLES. WATER ON THE FLOOR AND UNDER TORUS 1 BAY TO THE 300CT06 LEFT OF NORTHEAST CORNER ROOM DOOR. WATER ON FLOOR 2-3 BAYS RIGHT 300CT06 OF NORTHEAST CORNER ROOM DOOR. THERE WAS WATER ON THE FLOOR UNDER 300CT06 THE TORUS NEAR BAY 11 BOTTLE AS NOTED IN PREVIOUS INSPECTIONS.

300CT06 FRANK STULB 300CT06 310CTO6 10/31/06 13:30 3 1 OCTO 6 INSPECTED TROUGH DRAIN AND NO CHANGE FROM PREVIOUS INSPECTIONS.

A 310CT06 PENCIL STREAM WAS NOTED.

310CT06 INSPECTED POLY BOTTLES IN TORUS ROOM. ALL WERE EMPTY. NO WATER FOUND 310CT06 EXCEPT AS PREVIOUSLY NOTED. 310CT06 R. BARBIERI 310CT06 3 10CT 0 6 11/01/06 17:30 01NOV06 INSPECTED TROUGH DRAIN AND NO CHANGE FROM PREVIOUS INSPECTIONS.

A 01NOV06 PENCIL STREAM WAS NOTED.

0 1NOVO 6 INSPECTED POLY BOTTLES IN TORUS ROOM.

ALL WERE EMPTY. NO WATER FOUND 01NOV06 EXCEPT AS PREVIOUSLY NOTED. OlNOV06 PETE TAMBURRO 11/1/06 0 1NOVO 6 0 INOVO 6 AS LEFT CONDITION:

A03: REVIEW OF VIDEO AFTER DRAIN WAS CLEARED WAS SATISFACTORY.

ALL 300CT06 DRAINS ARE NOW CLEAR. DTBO 300CT06 A03 AND A04: VERIFICATION OF THE SAND BED DRAINS AS BEING CLEAR WAS 310CT06 PERFORMED BY PETER TAMBURRO AFTER THE COMPLETION OF THE CLEANING 310CT06 REOUIRED BY IR 547236 ON BAYS 7 AND 11. ALL SAND BED DRAINS ARE NOW 310CT06 VERIFIED CLEAR BASE ON THE REVIEW OF THE VIDEO BY PETER TAMBURRO 310CT06 THIS WAS VERIFIED BY DAN BARNES AND DOCUMENTED HERE BY TOM OUINTENZ 310CT06 TEOO 310CT06 RECURRING TASK ACTIVITY W/O NBR : R2088495 01 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 190CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

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• • ** ** ** ** ** ** ** ** ** ** W/O DESCRIPTION

LEAKAGE MONITORING TORUS, SANDBEDS & RX DRAIN ACT DESCRIPTION

LEAKAGE MONITOR TORUS, SANDBEDS & RX DRAIN PERFORMING ORG : OEPB RECURRING TASK NBR: PM18704M PR1:L COMPONENT ID : -- OC 1 187 F MISC 187 EQUIPMENT LOCATION:

MULTI 000 CLR NUMBER QA CLASS:& EQ:Y WO RESP ORG : OEPB FEG OC 1 187 000 DATE/SHIFT

03NOV06 * -- FOREMAN SSV AUTH ORG - INSP : OC PLANT ENG BAL PL CHARGING WORK CENTER:

05330 : RCL4 DATE : 190CT06 - - /HOLD SYSTEM BREACH :II\J INSULATION REQUIRED:T\T HWP REQ :T\T SCAFFOLDING REQD

T\T TECH SPEC:N MULTIPLE WORK LOC :- MAP NBR: HP REQD :B HIGH RAD - HP BRIEFING REQUIRED PREMIS ID : 4 PC 3 SCHED ID/WIN : 1R21 1R21 START DATE : 180CT06 EST DUR (HRS)

373 POST MAINT TEST: - CLEARANCE REQD :II\J DUE DATE : 160CT05 TECH SPEC: N/A DOSE ESTIMATE : 0010 mR RECURRING TASK ACTIVITY W/O NBR : R2088495 01 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 190CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

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• • ** ** ** ** ** ** ** ** ** ** ALARMING DOSIMETER:

1 ED SETPOINT:

0012 MREM or 0050 MREM/HR HP COVERAGE: INTERMITTENT

• OC-1-06-00058 - OBSERVATION

& INSPECTION

• KNOWLEDGE OF THE RADIOLOGICAL CONDITIONS IS REQUIRED PRIOR TO ENTERING THE

• PC REQUIREMENTS PER RADIOLOGICAL POSTINGS OR PER RP. RCA UNLESS ESCORTED BY AN RP TECH.

• THIS RWP IS NOT VALID FOR HRA,LHRA,VHRA.

1R21-TOP OF TORUS-INSPECTION/REPAIR OF COATING IN THE SANDBED REGION

• MICRO ALARA PLAN #06-431-ALL PERSONNEL TO READ AND COMPLY WITH M.A.P.

• KNOWLEDGE OF RAD CONDITIONS REQ'D PRIOR TO ENTRY TO RCA W/OUT RPT ESCORT.

• A DOCUMENTED HRA RP BRIEF IS REQUIRED FOR ALL ENTRIES INTO AREAS POSTED AS

• SURVEYS REQUIRED IN EACH NEW AREA ACCESSED.

• PC REQUIREMENTS PER RADIOLOGICAL POSTINGS OR PER RP.

• WORKERS SHALL WEAR DOSIMETRY SO THEIR EXPOSURE CAN BE MONITORED IN ANY RCA.

• FOLLOW ALL SAFETY REOUIREMENTS FOR THE TOP OF THE TORUS. "HIGH RADIATION AREA". (REF RP-AA-460)

• COORDINATE AREAS OF ENTRY WITH THE DRYWELL RPS DAILY TO ENSURE THAT NO HIGH DOSE ITEMS ARE PLACED ON DRYWELL 13' ELEVATION IN THE AREA OF SAND BED REGION WORK OR INSPECTION.

EVALUATION OF THE POSSIBLE NEED FOR SHIELDING.(SHIELDING PACKAGE #92-34).

• IF EXTENSIVE REPAIRS ARE NEEDED IN ANY AREA, CONTACT RAD ENGINEERING FOR

• RPT TO IDENTIFY LOW DOSE WAITING AREAS AND LOW DOSE PATHS OF TRAVEL.

• REPOSITIONING OF WHOLE BODY DOSIMETRY PER MAP,COORDINATE WITH RP.

• COORDINATE SET UP OF LAYDOWN AREA AND CONTAM CONTROL MEASURES WITH RP FOR DRAIN LINE CAMERA INSPECTION AND CLEARING OF ANY BLOCKAGE (CONTINGENCY).

I 1R21-TOP OF TORUS-INSPECTION/REPAIR OF COATING IN THE SANDBED REGION

• MICRO ALARA PLAN #06-431-ALL PERSONNEL TO READ AND COMPLY WITH M.A.P.

• KNOWLEDGE OF RAD CONDITIONS REQ'D PRIOR TO ENTRY TO RCA W/OUT RPT ESCORT. I I

• A DOCUMENTED HRA RP BRIEF IS REQUIRED FOR ALL ENTRIES INTO AREAS POSTED AS RECURRING TASK ACTIVITY W/O NBR : R2088495 01 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 190CT06 TYPE : ACT ** **********

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• • ** ** ** ** ** ****** ** ** ** ****** ** ** ** PAGE: 03

• SURVEYS REOUIRED IN EACH NEW AREA ACCESSED.

• PC REOUIREMENTS PER RADIOLOGICAL POSTINGS OR PER RP.

• WORKERS SHALL WEAR DOSIMETRY SO THEIR EXPOSURE CAN BE MONITORED IN ANY RCA.

• FOLLOW ALL SAFETY REOUIREMENTS FOR THE TOP OF THE TORUS.

• COORDINATE AREAS OF ENTRY WITH THE DRYWELL RPS DAILY TO ENSURE THAT NO HIGH DOSE ITEMS ARE PLACED ON DRYWELL 13' ELEVATION IN THE AREA OF SAND BED REGION WORK OR INSPECTION.

• IF EXTENSIVE REPAIRS ARE NEEDED IN ANY AREA, CONTACT RAD ENGINEERING FOR EVALUATION OF THE POSSIBLE NEED FOR SHIELDING.(SHIELDING PACKAGE #92-34).

• RPT TO IDENTIFY LOW DOSE WAITING AREAS AND LOW DOSE PATHS OF TRAVEL.

• REPOSITIONING OF WHOLE BODY DOSIMETRY PER MAP,COORDINATE WITH RP.

• COORDINATE SET UP OF LAYDOWN AREA AND CONTAM CONTROL MEASURES WITH RP FOR DRAIN LINE CAMERA INSPECTION AND CLEARING OF ANY BLOCKAGE (CONTINGENCY).

RECURRING TASK ACTIVITY W/O NBR : R2088495 01 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 190CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

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• • ** ** ** ** ** ** ** ** ** ** STEP NBR DESCRIPTION

1.0 PURPOSE

1.1 THE PURPOSE OF THIS ACTIVITY IS TO COMPLETE COMMITMENTS MADE FOR LICENSE RENEWAL AND AS PART OF OUR DRYWELL CORROSION MONITORING PROGRAM. THESE COMMITMENTS ARE DOCUMENTED IN THE COMMENTS SECTION OF THE WORK ORDER.

THE LICENSE RENEWAL COMMITMENTS ARE ANNOTATED WITH THE (CM-1) ANNOTATION.

IN ADDITION, LEAKAGE MONITORING IS ALSO A COMMITMENT FOR THE DRYWELL CORROSION MONITORING PROGRAM, WHICH PREDATED THE LICENSE RENEWAL COMMITMENTS. THESE COMMITMENTS ARE DESIGNATED BY (CM-2): 2.0 CLEARANCE REQUIREMENTS 2.1 NONE 3.0 IMPACT TO OPERATIONS 3.1 NONE, INSPECTION ONLY INITIAL/DATE COMPLT INSP

• • **********

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• • ** ** ** ** ****** ** ** ** ** ****** RECURRING TASK ACTIVITY W/O NBR A/R NBR W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 190CT06 TYPE **** : R2088495 01 : A2145130 ** ** ** : ACT PAGE: 05 4.0 PRECAUTIONS

4.1 CONDUCT

A PRE-JOB BRIEF AND DISCUSS ERROR LIKELY SITUATIONS.

4.2 CONTACT

RADPRO FOR ALARA BRIEF OR ANY OTHER RADIOLOGICAL CONCERNS. ~ ~ 4.3 BE SURE TO VERIFY WHAT THE PROPER PERSONEL PROTECTION EQUIPMENT (PPE) IS TO PERFORM THIS WORK ACTIVITY (REF. THE EXLON NUCLEAR SAFETY POCKET GUIDE).

4.4 ENSURE

ANY PERMITS GENERATED FOR THIS ACT HAVE BEEN TAKEN TO COMPLT/HISTORY.

5.0 SUPPORT

INFORMATION

5.1 LOCATION

5.1.1 REACTOR

CAVITY TELLTALE DRAIN - REACTOR RECURRING TASK ACTIVITY

• • **********

• • ** W/O NBR : R2088495 01 A/R NBR : A2145130 ** **********

• • ** ** W/O STATUS : ASIGND 240CT06 ** **********

• • ** ACT STATUS : INPROG 190CT06 ** ** ** ** : ACT ****** ** ** ** TYPE **** **********

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___________-_____-__---

ACTIVITY FOLLOWER DESCRIPTION

........................

STEP DESCRIPTION INITIAL/DATE NBR COMPLT INSP BUILDING 75' (NEAR FPC HEAT EXCHANGERS)

5.1.2 EOUIPMENT

POOL TELLTALE DRAIN - REACTOR BUILDING 75' (WEST WALL)

5.1.3 EOUIPMENT

POOL TELLTALE DRAIN - REACTOR BUILDING 75' (SOUTH WALL)

5.1.4 REACTOR

BUILDING CEILING - SOUTH SIDE 5.1.5 REACTOR BUILDING 75' SOUTH DRYWELL PENETRATIONS

5.1.6 REACTOR

BUILDING 51' DRYWELL PENETRATIONS BY RK-02 5.1.7 REACTOR BUILDING 23' DRYWELL PENETRATIONS (SOUTH SIDE) 5.1.8 TORUS BAY 1 5.1.9 TORUS BAY 3 i

~~~ ~ RECURRING TASK ACTIVITY W/O NBR : R2088495 01 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 190CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** ~~ **********

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• • ** ** ** ** **** **** ** **** ** ** ** ** ** ** ** ** ** ** ** ** 5.1.10 TORUS BAY 5 5.1.11 TORUS BAY 7 5.1.12 TORUS BAY 9 5.1.13 TORUS BAY 11 5.1.14 TORUS BAY 13 5.1.15 TORUS BAY 15 ~~ ~ 5.1.16 TORUS BAY 17 5.1.17 TORUS BAY 19 5.1.18 5 POLY BOTTLES IN TORUS ROOM 5.2 DRAWINGS INITIAL/DATE COMPLT INSP 5.2.1 GE 237E756 SPENT FUEL POOL COOLING.

RECURRING TASK ACTIVITY W/O NBR : R2088495 01 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 190CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

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• • ** ** ** ** ** ** ** ** ** ** STEP NBR DESCRIPTION INIT IAL/DATE COMPLT INSP 5.2.2 GU 3E-153-02-009 REACTOR BLDG. ARRGMT, 5.3 PROCEDURES:

5.3.1 MA-AA-716-008 FOREIGN MATERIAL EXCLUSION 5.3.2 MA-AA-716-021 RIGGING AND LIFTING PROGRAM 5.3.3 MA-AA-716-026 STATION HOUSEKEEPING MATERIAL CONDITION PROGRAM. 6.0 JOB SCOPE 6.1 PERFORM AN INSPECTION OF THE 5 SAND BED REGION DRAINS, IN THE TORUS ROOM, FOR LEAKAGE EVERY DAY DURING EACH OUTAGE WHILE THE REACTOR CAVITY CONTAINS WATER. (CM- 1) (CM- 2, NO FREQUENCY COMMITTED) 6.1.1 VERIFY THE POLY BOTTLES, WHICH COLLECT

-~ ** **********

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• • ** ** ** ** ** ** ****** ** ****** ** ** ** : R2088495 01 : A2145130 W/O NBR A/R NBR W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 190CT06 TYPE I- : ACT WATER LEAKAGE FROM THE DRAINS ARE EMPTY. 6.1.2 VISUALLY INSPECT THE TUBING, WHICH CONNECT THE DRAINPIPES TO THE POLY BOTTLES FOR CURRENT FLOW OF WATER OR WATER DROPS.

6.1.3 VISUALLY

INSPECT THE FLOOR AREAS AROUND AND UNDER THE TORUS FOR PRESENCE OF WATER.

IF LEAKAGE IS FOUND, DETERMINE THE SOURCE OF LEAKAGE, AND IF NOT FROM THE SANDBED DRAINS REPORT THE LEAKAGE 6.1.4 NOTIFY ENGINEERING IMMEDIATELY IF WATER IS FOUND IN THE POLY BOTTLES OR IF WATER LEAKAGE IS OBSERVED COMING FROM THE SAND BED DRAINS. 6.1.5 IF LEAKAGE IS DETECTED IN ANY OF THE SANDBED DRAINS ISSUE AN IR WITH THE FOLLOWING REQUIRED ACTIONS PER OUR RECURRING TASK ACTIVITY W/O NBR : R2088495 01 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 190CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

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• • ** ** ** ** ** ** ** ** ** ** STEP NBR DESCRIPTION COMMITMENTS (CM-1) : ~ 6.1.5.1 DETERMINE THE SOURCE OF LEAKAGE AND INVESTIGATE AND ADDRESS THE IMPACT OF LEAKAGE ON THE DRYWELL SHELL, INCLUDING:

6.1.5.1.1 VERIFICATION OF THE CONDITION OF THE OF THE DRYWELL SHELL COATING AND MOISTURE BARRIER (SEAL)

IN THE SAND BED REGION 6.1.5.1.2 PERFORMANCE OF UT EXAMINATIONS OF THE SHELL IN THE UPPER REGIONS. 6.1.5.2 UTS WILL ALSO BE PERFORMED ON ANY AREAS IN THE SAND BED REGION WHERE VISUAL INSPECTION INDICATES THE COATING IS DAMAGED AND CORROSION HAS OCCURRED.

~ 6.1.5.3 UT RESULTS WILL BE EVALUATED PER THE EXISTING PROGRAM.

INITIAL/DATE COMPLT INSP 6.1.5.4 ANY DEGRADED COATING OR MOISTURE BARRIER WILL BE REPAIRED.

6.1.5.5 THESE ACTIONS WILL BE COMPLETED PRIOR TO EXITING THE ASSOCIATED OUTAGE.

6.2 PERFORM

AN INSPECTION OF THE REACTOR CAVITY CONCRETE TROUGH DRAIN FOR LEAKAGE EVERY DAY DURING EACH OUTAGE WHILE THE REACTOR CAVITY CONTAINS WATER. (CM-1) (CM-2, NO FREOUENCY) 6.2.1 THE AFFECTED DRAIN IS 2-INCH DIAMETER NN-6, VALVE V-18-131 SHOWN ON P&ID GE-237E756 SHEET 1 & JC-147434 SHEET 2 LEAKAGE FROM THE DRAIN CAN BE OBSERVED BY INSPECTING THE STEEL COLLECTION TROUGH AT ELEV. 75'. ** ** **********

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• • ** ** W/O NBR A/R NBR : A2145130 ** **********

• • W/O STATUS : ASIGND 240CT06 ** ** ** ** ACT STATUS : INPROG 190CT06 ** ** ** TYPE : ACT ** ** ** PAGE: 11 ** **** ** : R2088495 01 ** ****** ****** .......................

....................... ACTIVITY FOLLOWER DESCRIPTION

........................

DESCRIPTION INITIAL/DATE INSP STEP NBR COMPLT 6.2.2 NOTIFY ENGINEERING IMMEDIATELY IF EVIDENCE OF WATER LEAKAGE IS OBSERVED.

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.......................

ACTIVITY FOLLOWER DESCRIPTION

........................

STEP DESCRIPTION INITIAL/DATE NBR COMPLT INSP J ~ 6.2.3 ISSUE AN IR DOCUMENTING THE LEAKAGE, WITH THE REQUIRED ACTION FOR ENGINEERING TO EVALUATE THE AMOUNT OF LEAKAGE AND ANY FURTHER ACTIONS. EVALUATION OF THE LEAKAGE SHOULD CONSIDER THE PREVIOUS UJ!JDERSTANDING OF WHAT IS ACCEPTABLE.

LEAKAGE MAY BE AS AGREED BY THE NRC AND DOCUMENTED IN THE REFERENCES FOR (CM-2). 6.3 INSPECT FOR LEAKAGE AT THE LOCATIONS LISTED IN STEP 5.1 AND DOCUMENT QUANTITY OF LEAKAGE IN EACH AREA.

RECURRING TASK ACTIVITY W/O NBR : R2088495 01 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 190CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

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REPAIR CODE: ADDITIONAL PAGES ATTACHED ? __. I MEASUREMENT AND TEST EQ ___________-___-------- , .......................

ID NUMBER DATE USED DESCRIPTION ADDITIONAL PAGES ATTACHED ? __ MAINT QC OTHER I DATE : DATE : DATE :

RECURRING TASK ACTIVITY W/O NBR : R2088495 02 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 310CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

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LEAKAGE MONITORING TORUS, SANDBEDS & RX DRAIN ACT DESCRIPTION

187 ENGINEERING SUPPORT (CONT)

PERFORMING ORG : OEPP RECURRING TASK NBR: PM18704M PR1:A COMPONENT ID : -- OC 1 187 F MISC 187 EQUIPMENT LOCATION:

MULTI 000 CLR NUMBER QA CLASS:_(L EQ:Y WO RESP ORG

OEPB FEG - - -- OC 1 187 ooc DATE/SHIFT

03NOV06 J- FOREMAN : OC PLANT ENG BAL PL CHARGING WORK CENTER: 05351 SSV AUTH : SPHl DATE : 310CT06 ORG-INSP/HOLD - - ACT TYPE :A SUPPORT DATES: N/A N/A - PREPARED BY : YARNES'R DATE : 09MAY04 HOLDS : MODE PARTS N CHEM + RAD - CLR - PLAN - SCH - -------------------

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SAFETY/PLmT IMPACT CONSIDERATIONS========================= SYSTEM BREACH

N INSULATION REQU1RED:N HWP REQ :T\J SCAFFOLDING REQD

TJ TECH SPEC:r\J MULTIPLE WORK LOC :- MAP NBR: HP REQD :A HIGH RAD - HP BRIEFING REQUIRED ASME/ISI REVIEW : ASME XI R&R: - DATE: N/A QC PLAN REVIEW : YARNES,R NOCR-- DATE: 05SEP06 APPROVED BY : YARNES,R DATE : PRINT NAME AND WRITE INITIALS OF ALL PERSONNEL WHO INITIALED THIS ACTIVITY ..............................................................................

..............................................................................

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RECURRING TASK ACTIVITY **** **********

• • • • **** W/O NBR : R2088495 02 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS

INPROG 310CT06 TYPE : ACT ** ** ** ** ****** ****** ** ** **********

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.........................

________________________

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ALARMING DOSIMETER:

1 ED SETPOINT:

0012 MREM or 0050 MREM/HR HP COVERAGE:

INTERMITTENT RWP ACCESS CODE: OC-1-06-00058

• KNOWLEDGE OF THE RADIOLOG:

• PC REQUIREMENTS PER RADIOLOGICAL POSTINGS OR PER RP. RCA UNLESS ESCORTED BY AN RP TECH.

~- ~- RECURRING TASK ACTIVITY W/O NBR : R2088495 02 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : INPROG 310CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

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• SURVEYS REQUIRED IN EACH NEW AREA ACCESSED.

• PC REQUIREMENTS PER RADIOLOGICAL POSTINGS OR PER RP.

• WORKERS SHALL WEAR DOSIMETRY SO THEIR EXPOSURE CAN BE MONITORED IN ANY RCA.

• FOLLOW ALL SAFETY REOUIREMENTS FOR THE TOP OF THE TORUS.

• COORDINATE AREAS OF ENTRY WITH THE DRYWELL RPS DAILY TO ENSURE THAT NO HIGH DOSE ITEMS ARE PLACED ON DRYWELL 13' ELEVATION IN THE AREA OF SAND BED REGION WORK OR INSPECTION.

• IF EXTENSIVE REPAIRS ARE NEEDED IN ANY AREA, CONTACT RAD ENGINEERING FOR EVALUATION OF THE POSSIBLE NEED FOR SHIELDING.(SHIELDING PACKAGE

1. 92-34).

• RPT TO IDENTIFY LOW DOSE WAITING AREAS AND LOW DOSE PATHS OF TRAVEL.

• REPOSITIONING OF WHOLE BODY DOSIMETRY PER MAP,COORDINATE WITH RP.

• COORDINATE SET UP OF LAYDOWN AREA AND CONTAM CONTROL MEASURES WITH RP FOR DRAIN LINE CAMERA INSPECTION AND CLEARING OF ANY BLOCKAGE (CONTINGENCY).

1.0 PURPOSE

1.1 THIS IS A CONTINGENCY ACTIVITY TO PROVIDE ENGINEERING A MEANS TO RESOLVE ANY FINDINGS FROM ACTIVITY 01, IN-OUTAGE INSPECTION, SUCH AS DAMAGE, LEAKS OR OTHER NON-CONFORFIANCE'S.

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_______________________

ACTIVITY FOLLOWER DESCRIPTION

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STEP DESCRIPTION INITIAL/DATE NBR COMPLT INSP I I ~ I ~ I 2.0 CLEARANCE REOUIREMENTS:

3.0 IMPACT

TO OPERATIONS:

3.1 AS DETERMINED BY ENGINEERING.

4.0 PRECAUTIONS

4.1 SEE ACTIVITY 01. 5.0 SUPPORT INFORMATION

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_______________________

_______________________ ACTIVITY FOLLOWER DESCRIPTION

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STEP DESCRIPTION INITIAL/DATE NBR COMPLT INSP 5.1 SEE ACTIVITY

1. 1 5.2 DRAWINGS:

5.2.1 GE 237E756 SPENT FUEL POOL COOLING.

5.2.2 GU 33-153-02-009 REACTOR BLDG.

ARRGMT. 5.3 PROCEDURES:

5.3.1 MA-AA-716-008 FOREIGN MATERIAL EXCLUSION.

5.3.2 MA-AA-716-021 RIGGING AND LIFTING PROGRAM 5.3.3 MA-AA-716-026 STATION HOUSEKEEPING MATERIAL CONDITION PROGRAM. 6. JOB SCOPE k*****t********f****

NOTE ****************ft**t*t WORK ORDER ACTIVITY 01:

IN-OUTAGE INSPECTION:

GENERATE PERMITS AS REOUIRED

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R2088495 02 **********

ACT I TYPE .................................................

~ 6.1 PERFORM A WALKDOWN/BRIEFING WITH ASSIGNED ENGINEER ENTAILING COMPLETE EXPLANATION OF PROBLEM(S)

FOUND. PROVIDE SUGGESTED METHOD OF PROBLEM RESOLUTION.

6.2 ENGINEER

PROVIDE RESOLUTION OF PROBLEM VIA WRITTEN INSTRUCTION(S)/EVALUATION ADDED TO THIS ACTIVITY.

6.3 ENGINEER/SUPERVISOR COORDINATE WITH RADPRO TO ENSURE ANY ADDITIONAL RADIOLOGICAL REQUIREMENTS ARE SUPPORTED BY THE RWP AND 6.4 CONDUCT A PRE-JOB BRIEF WITH THE WORK CREW AND DISCUSS ERROR LIKELY SITUATIONS.

6.5 RESPONSIBLE

SUPERVISOR DIRECT CRAFT IN PERFORMING INSTRUCTION TO RESOLVE ISSUE. DJOTIFY ENGINEER IF ADDITIONAL NEEDS ARISE

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.......................

.......................

I STEP NBR DESCRIPTION FOR ADDITIONAL SUPPORT AND INSTRUCTION.

DOCUMENT ALL ACTIONS TAKEN AND RESULTS OF THOSE ACTIONS IN WO

SUMMARY

AND CREM. 6.6 BE SURE TO MAINTAIN SYSTEM CLEANLINESS, AND FME REOUIREMENTS AS PER MA-AA-716-008

6.7 DISPOSE

OF ALL WASTE IAW RAD PRO DIRECTIONS

6.8 ENSURE

ALL FORMS AND ATTACHMENTS CONTAINED IN PROCEDURES ARE COMPLETE.

7.0 DOCUMENTATION

INITIAL/DATE COMPLT INSP 7.1 DOCUMENT WORK PERFORMED, ALL MATERIAL USED AND AS LEFT CONDITION IN CREM.

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SUMMARY

CO~ENTS:===============================

CAUSE CODE: REPAIR CODE: ADDITIONAL PAGES ATTACHED ? ___ ETT REMOVED ? __ .......................

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MEASUREMENT AT\JD TEST EQUIPMENT========================= ID NUMBER DATE USED DESCRIPTION ADDITIONAL PAGES ATTACHED ? - ...............................

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FINAL REVIEWS==================================

MAINT QC OTHER I DATE : DATE : DATE :

RECURRING TASK ACTIVITY W/O NBR : R2088495 03 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 300CT06 TYPE : ACT ** **********

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LEAKAGE MONITORING TORUS, SANDBEDS & RX DRAIN ACT DESCRIPTION

187 CAMERA INSPECTION PERFORMING ORG

OEP RECURRING TASK NBR:

PM18704M PRI:Z COMPONENT ID - *- OC - 1 187 F MISC 187 EQUIPMENT LOCATION:

MULTI 000 CLR NUMBER QA CLASS:A EQ:Y WO RESP ORG : OEPB FEG : OC 1 187 - 00' DATE/SHIFT

300CT06 FOREMAN : OC WRK SUPP PROJECT CHARGING WORK CENTER: 05330 SSV AUTH : JJKS DATE : 190CT06 -- ORG-INSP/HOLD - - ACT TYPE :E SUPPORT DATES: N/A N/A - PREPARED BY

PARKER, J. DATE : 020CT06 HOLDS : MODE 1 PARTS T\T CHEM + RAD - CLR - PLAN - SCH - -------------------

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SAFETY/PLMT IMPACT CONSIDERATIONS=========================

SYSTEM BREACH *N *- INSULATION REQU1RED:N HWP REQ -N *- SCAFFOLDING REQD

- N TECH SPEC:N MULTIPLE WORK LOC :- MAP NBR: HP REQD :A HIGH RAD - HP BRIEFING REOUIRED RECURRING TASK ACTIVITY W/O NBR : R2088495 03 A/R NBR : A2145130 , W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 300CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

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1 ED SETPOINT: 0040 MREM or 0200 MREM/HR ALARA PRE JOB REQUIRED:

1 HP COVERAGE: INTERMITTENT RWP ACCESS CODE:

OC10600431MAP#O6-431 1R21-TOP OF TORUS-INSPECTION/REPAIR OF COATING IN THE SANDBED REGION

• MICRO ALARA PLAN #06-431-ALL PERSONNEL TO READ AND COMPLY WITH M.A.P.

• KNOWLEDGE OF RAD CONDITIONS REO'D PRIOR TO ENTRY TO RCA W/OUT RPT ESCORT.

• A DOCUMENTED HRA RP BRIEF IS REQUIRED FOR ALL ENTRIES INTO AREAS POSTED AS

• SURVEYS REOUIRED IN EACH NEW AREA ACCESSED.

• PC REQUIREMENTS PER RADIOLOGICAL POSTINGS OR PER RP.

• WORKERS SHALL WEAR DOSIMETRY SO THEIR EXPOSURE CAN BE MONITORED IN ANY RCA.

• FOLLOW ALL SAFETY REOUIREMENTS FOR THE TOP OF THE TORUS.

• COORDINATE AREAS OF ENTRY WITH THE DRYWELL RPS DAILY TO ENSURE THAT NO HIGH "HIGH RADIATION AREA". (REF RP-AA-460)

DOSE ITEMS ARE PLACED ON DRYWELL 13' ELEVATION IN THE AREA OF SAND BED REGION WORK OR INSPECTION.

• IF EXTENSIVE REPAIRS ARE NEEDED IN ANY AREA, CONTACT RAD ENGINEERING FOR EVALUATION OF THE POSSIBLE NEED FOR SHIELDING.(SHIELDING PACKAGE #92-34).

• RPT TO IDENTIFY LOW DOSE WAITING AREAS AND LOW DOSE PATHS OF TRAVEL.

• REPOSITIONING OF WHOLE BODY DOSIMETRY PER MAP,COORDINATE WITH RP.

• COORDINATE SET UP OF LAYDOWN AREA AND CONTAM CONTROL MEASURES WITH RP FOR DRAIN LINE CAMERA INSPECTION Am CLEARING OF ANY BLOCKAGE (CONTINGENCY).

1R21-TOP OF TORUS-INSPECTION/REPAIR OF COATING IN THE SANDBED REGION

• MICRO ALARA PLAN #06-431-ALL PERSONNEL TO READ AND COMPLY WITH M.A.P.

• KNOWLEDGE OF RAD CONDITIONS REO'D PRIOR TO ENTRY TO RCA W/OUT RPT ESCORT.

• A DOCUMENTED HRA RP BRIEF IS REQUIRED FOR ALL ENTRIES INTO AREAS POSTED AS

• SURVEYS REQUIRED IN EACH NEW AREA ACCESSED.

• PC REQUIREMENTS PER RADIOLOGICAL POSTINGS OR PER RP.

• WORKERS SHALL WEAR DOSIMETRY SO THEIR EXPOSURE CAN BE MONITORED IN ANY RCA. "HIGH RADIATION AREA". (REF RP-AA-460)

~~~

• FOLLOW ALL SAFETY REQUIREMENTS FOR THE TOP OF THE TORUS.

• COORDINATE AREAS OF ENTRY WITH THE DRYWELL RPS DAILY TO ENSURE THAT NO HIGF DOSE ITEMS ARE PLACED ON DRYWELL 13' ELEVATION IN THE AREA OF SAND BED

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• IF EXTENSIVE REPAIRS ARE NEEDED IN ANY AREA, CONTACT RAD ENGINEERING FOR

• RPT TO IDENTIFY LOW DOSE WAITING AREAS AND LOW DOSE PATHS OF TRAVEL.

• REPOSITIONING OF WHOLE BODY DOSIMETRY PER MAP,COORDINATE WITH RP.

• COORDINATE SET UP OF LAYDOWN AREA AND CONTAM CONTROL MEASURES WITH RP FOR DRAIN LINE CAMERA INSPECTION AND CLEARING OF ANY BLOCKAGE (CONTINGENCY).

EVALUATION OF THE POSSIBLE NEED FOR SHIELDING.(SHIELDING PACKAGE

1. 92-34).

1. PURPOSE A. THE PURPOSE OF THIS ACTIVITY IS TO PERFORM CAMERA INSPECTIONS OF THE INTERNALS OF THE FORMER SANDBED CAVITY DRAIN LINES. 2. CLEARANCE REQUIREMENTS A. NO CLEARANCE REQUIRED.

3. IMPACT TO OPERATIONS A. NONE, INSPECTION ONLY ** ********** **

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ACT .......................

.......................

ACTIVITY FOLLOWER DESCRIPTION

........................

STEP DESCRIPTION INITIAL/DATE NBR COMPLT INSP

4. PRECAUTIONS A. CONDUCT A PRE-JOB BRIEF AND DISCUSS ERROR LIKELY SITUATIONS. B. CONTACT RADPRO FOR ALARA BRIEF OR ANY OTHER RADIOLOGICAL CONCERNS.

C. BE SURE TO VERIFY WHAT THE PROPER PERSONEL PROTECTION EQUIPMENT (PPE)

IS TO PERFORM THIS WORK ACTIVITY.

5. SUPPORT INFORMATION A. LOCATION:

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R2088495 03 : A2145130 PAGE: 05 ....................... ....................... ACTIVITY FOLLOWER DESCRIPTION

........................

STEP DESCRIPTION INITIAL/DATE NBR COMPLT INSP 1. TORUS ROOM 5 SAND BED DRAIN LINES IN BAYS 3, 7, 11 15 & 19 B. DRAWINGS 1. GU 33-153-02-009 REACTOR BLDG. ARRGMT.

C. PROCEDURE

S

1. MA-AA-716-008 FME 2. MA-AA-716-026 STATION HOUSEKEEPING MATERIAL CONDITION PROGRAM. D. ENGINEERING DOCUMENTS:

1. TDR NO. 694 2. IS-328227-004

6. JOB SCOPE A. PERFORM A CAMERA INSPECTION OF THE 5 SAND BED REGION DRAINS, IN THE TORUS ROOM, FOR BLOCKAGE.

B. REMOVE THE TUBING FOR PIPE INTERNAL INSPECTION.

PERFORM CAMERA INSPECTION FROM THE TORUS ROOM TO THE SCREEN. INSTALL TUBING AND ROUTE TO A POLY BOTTLE. DOCUMENT CONDITION OF THE PIPING IN THE CREM.

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• • ** ** ** ** ** ** ** ** ** ** ** ****** ****** STEP NBR DL DL DL DL DL sv DESCRIPTION INITIAL/DATE COMPLT INSP C. DOCUMENT ACCEPTANCE CRITERIA:

BAY 3 BAY 7 BAY 11 BAY 15 BAY 19 1. BLOCKAGE LESS THAN 15% CROSS SECTION ZERO .BLOCKAGE

2. EXAMINATION DATE/TIME ZERO BLOCKAGE 3. METHOD OF EXAMINATION ZERO BLOCKAGE 4. EXAMINER NAME ZERO BLOCKAGE 5. REVIEWER NAME ZERO BLOCKAGE C. VERIFY THAT TUBING IS INSTALLED INTO POLY DRRO 300CT06 BOTTLES WHEN INTERNAL INSPECTIONS ARE COMPLETE.

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SUMMARY

CO~ENTS:=============================== CAUSE CODE: REPAIR CODE: ADDITIONAL PAGES ATTACHED ? __ ETT REMOVED ? - .......................

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MEASUREMENT AND TEST EQUIPMENT=========================

ID NUMBER DATE USED DESCRIPTION ADDITIONAL PAGES ATTACHED ? _. ___________________------------

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FINAL REVIEWS==================================

MAINT QC OTHER I DATE : DATE : DATE :

RECURRING TASK ACTIVITY W/O NBR : R2088495 04 A/R NBR : A2145130 ~ W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 310CT06 ~ TYPE : ACT ** **********

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_____________-____-------------

DESCRIPTION====================================

W/O DESCRIPTION

LEAKAGE MONITORING TORUS, SANDBEDS & RX DRAIN ACT DESCRIPTION

187 (CONTINGENT) CLEAR PIPE BLOCKAGE PERFORMING ORG : om RECURRING TASK NBR: PM18704M PR1:A : OC 1 187 F MISC 187 EQUIPMENT LOCATION: MULTI OQO CLR NUMBER QA CLASS:_11 EQ:Y DATE/SHIFT

310CT06 X FOREMAN : MARTIN, DAVE CHARGING WORK CENTER: 05322 SSV AUTH : DMlO DATE : 240CT06 COMPONENT ID -- WO RESP ORG : OEPB FEG : -- OC 1 187 OO( ORG-INSP/HOLD - ACT TYPE :C SUPPORT DATES: N/A N/A - - PREPARED BY : PARKER, J. DATE : 020CTO6 HOLDS : MODE TJ PARTS T\s CHEM + RAD - CLR __ PLAN - SCH - -------------------

---

SAFETY/PL~T IMPACT CONSIDERATIONS=========================

~ ~~ RECURRING TASK ACTIVITY W/O NBR : R2088495 04 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 310CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

• • ** **********

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• • ** ** ** ** ** ** ** ** ** ** ALARMING DOSIMETER:

y ED SETPOINT:

0040 MREM or 0200 MREM/HR ALARA PRE JOB REQUIRED:

y HP COVERAGE:

INTERMITTENT RWP ACCESS CODE: OC10600431MAP#O6-431

1. PURPOSE A. THE PURPOSE OF THIS ACTIVITY IS TO CLEAR PIPE BLOCKAGE IDENTIFIED BY THE CAMERA INSPECTIONS.

2. CLEARANCE REQUIREMENTS A. NO CLEARANCE REQUIRED.

3. IMPACT TO OPERATIONS A. NONE; REACTOR IN SHUT DOWN MODE. 4. PRECAUTIONS A. CONDUCT A PRE-JOB BRIEF AND DISCUSS ERROR LIKELY SITUATIONS.

B. CONTACT RADPRO FOR ALARA BRIEF OR ANY OTHER RADIOLOGICAL CONCERNS.

C. BE SURE TO VERIFY WHAT THE PROPER PERSONEL PROTECTION EQUIPMENT (PPE)

IS TO PERFORM THIS WORK ACTIVITY.

PROTECT YOURSELF FROM WATER AND SAND AS IT EXITS THE PIPE. D. USE CAUTION WHILE CLEARING DRAINS TO

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• • ** ** ** ** ** ****** ** ** ** ****** ** ** ** RECURRING TASK ACTIVITY W/O NBR A/R NBR W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 310CT06 TYPE : R2088495 04 : A2145130 : ACT STEP NBR DESCRIPTION CAPTURE THE WATER AND DEBRIS. 5. SUPPORT INFORMATION A. LOCATION:

1. TORUS ROOM 5 SAND BED DRAIN LINES IN BAYS 3, 7, 11, 15 AND 19 B. DRAWINGS 1. GU 3E-153-02-009 REACTOR BLDG. ARRGMT.

C. PROCEDURE

S:

1. MA-AA-716-008 FME 2. MA-AA-716-026 STATION HOUSEKEEPING MATERIAL CONDITION PROGRAM. D. ENGINEERING DOCUMENTS:

1. TDR NO. 964 2, 13-328227-004

6. JOB SCOPE A. CLEAR PIPING BLOCKAGE BASED ON THE RESULTS OF THE CAMERA INSPECTIONS IN ACT 03. B. USE THE GUIDELINES IN TDR NO. 694 TO CLEAR THE BLOCKAGE. COLLECT WATER AND DEBRIS AND INITIAL/DATE COMPLT INSP

~ ~ RECURRING TASK ACTIVITY W/O NBR : R2088495 04 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 310CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

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....................... ACTIVITY FOLLOWER DESCRIPTION

........................

INITIAL/DATE INSP STEP DESCRIPTION NBR COMPLT DISPOSE AT THE DIRECTION TO RAD PRO. sv C. VERIFY TUBING IS ATTACHED AND ROUTED TO THE DMlO 250CT06 POLY BOTTLES. sv A2152843 IS A CHILD OF THIS AR. AFTER DMlO 310CT06 COMPLETION, TAKE THE CHILD AR TO HISTORY.

, RECURRING TASK ACTIVITY W/O NBR : R2088495 05 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 190CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

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• • ** ** ** ** ** ** ** ** ** ** W/O DESCRIPTION

LEAKAGE MONITORING TORUS, SANDBEDS & RX DRAIN ACT DESCRIPTION

FORMER SAND BED INSTALL SPILL CONTAINMENTS PERFORMING ORG : om RECURRING TASK NBR: PM18704M PR1:A COMPONENT ID : -- OC 1 187 F MISC 187 EQUIPMENT LOCATION:

MULTI 000 CLR NUMBER QA CLASS:L EQ:Y : OC 1 187 - 001 WO RESP ORG : OEPB FEG -- DATE/SHIFT

190CT06 X FOREMAN : MARTIN, DAVE CHARGING WORK CENTER:

05322 SSV AUTH : JJK5 DATE : 180CT06 ORG-INSP/HOLD - ACT TYPE

• f- X SUPPORT DATES: N/A N/A - PREPARED BY

PARKER, J. DATE : - 120CT06 HOLDS : MODE N PARTS N CHEM + RAD - CLR - PLAN __ SCH - -------------------

---

SAFETY/PL~T IMPACT CONSIDERATIONS========================= BARRIER PERMIT RQD:- CHEMICAL HAZARD

N FIRE PROTECTION

M SECURITY *N -- SYSTEM BREACH :N - INSULATION REQU1RED:N HWP REQ :N - SCAFFOLDING REQD

A TECH SPEC:N MULTIPLE WORK LOC :- MAP NBR: HP REQD *B *- HIGH RAD - HP BRIEFING REQUIRED PREMIS ID : 4 PC SCHED ID/WIN : 1R21 1R21 START DATE : 180CT06 EST DUR (HRS) : 4 POST MAINT TEST: -

RECURRING TASK ACTIVITY W/O NBR : R2088495 05 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 190CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

• • ** **********

• • • • **** ** ** ** **** ** **********

• • ** ** **********

• • ** ** ** ** ** ** ** ** ** ** PAGE: 02 ALARMING DOSIMETER:

1 ED SETPOINT: 0040 MREM or 0200 MREM/HR ALARA PRE JOB REQUIRED:

y HP COVERAGE:

INTERMITTENT RWP ACCESS CODE:

OC10600431MAP#O6-431 1R21-TOP OF TORUS-INSPECTION/REPAIR OF COATING IN THE SANDBED REGION

• MICRO ALARA PLAN #06-431-ALL PERSONNEL TO READ AND COMPLY WITH M.A.P.

• KNOWLEDGE OF RAD CONDITIONS REQ'D PRIOR TO ENTRY TO RCA W/OUT RPT ESCORT.

• A DOCUMENTED HRA RP BRIEF IS REQUIRED FOR ALL ENTRIES INTO AREAS POSTED AS

• SURVEYS REOUIRED IN EACH NEW AREA ACCESSED.

• PC REQUIREMENTS PER RADIOLOGICAL POSTINGS OR PER RP.

• WORKERS SHALL WEAR DOSIMETRY SO THEIR EXPOSURE CAN BE MONITORED IN ANY RCA.

• FOLLOW ALL SAFETY REQUIREMENTS FOR THE TOP OF THE TORUS.

• COORDINATE AREAS OF ENTRY WITH THE DRYWELL RPS DAILY TO ENSURE THAT NO HIGH "HIGH RADIATION AREA". (REF RP-AA-460)

DOSE ITEMS ARE PLACED ON DRYWELL 13' ELEVATION IN THE AREA OF SAND BED REGION WORK OR INSPECTION.

• IF EXTENSIVE REPAIRS ARE NEEDED IN ANY AREA, CONTACT RAD ENGINEERING FOR EVALUATION OF THE POSSIBLE NEED FOR SHIELDING.(SHIELDING PACKAGE #92-34).

• RPT TO IDENTIFY LOW DOSE WAITING AREAS AND LOW DOSE PATHS OF TRAVEL.

• REPOSITIONING OF WHOLE BODY DOSIMETRY PER MAP,COORDINATE WITH RP.

• COORDINATE SET UP OF LAYDOWN AREA AND CONTAM CONTROL MEASURES WITH RP FOR DRAIN LINE CAMERA INSPECTION AND CLEARING OF ANY BLOCKAGE (CONTINGENCY).

1R21-TOP OF TORUS-INSPECTION/REPAIR OF COATING IN THE SANDBED REGION

• MICRO ALARA PLAN #06-431-ALL PERSONNEL TO READ AND COMPLY WITH M.A.P.

• KNOWLEDGE OF RAD CONDITIONS REQ'D PRIOR TO ENTRY TO RCA W/OUT RPT ESCORT.

• A DOCUMENTED HRA RP BRIEF IS REQUIRED FOR ALL ENTRIES INTO AREAS POSTED AS

• SURVEYS REQUIRED IN EACH NEW AREA ACCESSED.

• PC REQUIREMENTS FER RADIOLOGICAL POSTINGS OR PER RP.

• WORKERS SHALL WEAR DOSIMETRY SO THEIR EXPOSURE CAN BE MONITORED IN ANY RCA.

• FOLLOW ALL SAFETY REOUIREMENTS FOR THE TOP OF THE TORUS.

• COORDINATE AREAS OF ENTRY WITH THE DRYWELL RPS DAILY TO ENSURE THAT NO HIGH "HIGH RADIATION AREA". (REF RP-AA-460)

DOSE ITEMS ARE PLACED ON DRYWELL 13' ELEVATION IN THE AREA OF SAND BED

• • **********

• • ** **** **********

• • • • **** ** ** ** ** **** ** ** **********

• • ** ** ** **********

• • ** ** ** ** ** ****** ** ** ** ****** ** ** ** RECURRING TASK ACTIVITY W/O NBR : ~2088495 05 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 190CT06 TYPE : ACT I PAGE: 03 __________________________

..........................

HP SPECIAL INSTRUCTIONS

...........................

• .IF EXTENSIVE REPAIRS ARE NEEDED IN ANY AREA, CONTACT RAD ENGINEERING FOR

• RPT TO IDENTIFY LOW DOSE WAITING AREAS AND LOW DOSE PATHS OF TRAVEL.

• REPOSITIONING OF WHOLE BODY DOSIMETRY PER MAP,COORDINATE WITH RP.

• COORDINATE SET UP OF LAYDOWN AREA AND CONTAM CONTROL MEASURES WITH RP FOR DRAIN LINE CAMERA INSPECTION AND CLEARING OF ANY BLOCKAGE (CONTINGENCY).

EVALUATION OF THE POSSIBLE NEED FOR SHIELDING.(SHIELDING PACKAGE

1. 92-34).

~ RECURRING TASK ACTIVITY W/O NBR : R2088495 05 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 190CT06 TYPE : ACT ** **** ** ** ** ** ****** ****** **********

• • ** **********

• • • • **** ** ** ** **** ** **********

• • ** ** **********

• • ** ** ** ** ** ** ** ** ** ** STEP NBR DESCRIPTION INITIAL/DATE COMPLT INSP

1. PURPOSE A. THE PURPOSE OF THIS ACTIVITY IS TO INSTALL SPILL CONTAINMENTS AROUND THE DRAIN BOTTLES FOR THE FORMER SAND BED REGION OF THE DRY WELL. 2. CLEARANCE REQUIREMENTS A. NO CLEARANCE REQUIRED

3. IMPACT TO OPERATIONS A. NONE, INSPECTION ONLY 4. PRECAUTIONS A. CONDUCT A PRE-JOB BRIEF AND DISCUSS ERROR LIKELY SITUATIONS.

B. CONTACT RADPRO FOR ALARA BRIEF OR ANY OTHER RADIOLOGICAL CONCERNS.

C. APPLY PRE-MADE LABELS TO THE SPILL CONTAINERS.

5. SUPPORT INFORMATION A. LOCATION:

RECURRING TASK ACTIVITY W/O NBR : R2088495 05 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 190CT06 TYPE : ACT ** ********** ** ** **** **********

• • • • **** ** ** ** ** **** ** ** **********

• • ** ** ** **********

• • ** ** ** ** ** ****** ** ** ** ****** ** ** ** STEP NBR wv DESCRIPTION

1. 5 POLY BOTTLES IN TORUS ROOM A. TORUS BAY 3 B. TORUS BAY 7 C. TORUS BAY 11 D. TORUS BAY 15 E. TORUS BAY 19 B. DRAWINGS 1. GU 33-153-02-009 REACTOR BLDG. ARRGMT.

C. PROCEDURE

S:

1. MA-AA-716-026 STATION HOUSEKEEPING

6. JOB SCOPE A. INSTALL A SPILL CONTAINMENT AROUND THE 5 POLY BOTTLES IN THE TORUS ROOM. 1. REMOVE THE DOLLY FROM THE CONTAINER.

2. PLACE THE POLY BOTTLE INSIDE THE SPILL CONTAINER LABELED WITH THE APPROPRIATE INITIAL/DATE COMPLT INSP DM1 0 190CTO 6 BAY. ~wv 3. VERIFY THAT THE TUBING IS ROUTED TO THE DMlO 190CT06 I POLY BOTTLE. 7. CLOSE OUT:

' ** **********

• • ** **** **********

• • • • **** ** ** ** ** **** ** ********** ** ** ** ** ** **********

• • ** ** ** ** ** ****** ** ** ** ****** ** ** ** PAGE: 06 RECURRING TASK ACTIVITY W/O NBR A/R NBR W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 190CT06 TYPE : R2088495 05 : A2145130 : ACT .......................

....................... ACTIVITY FOLLOWER DESCRIPTION

........................

STEP DESCRIPTION INITIAL/DATE NBR COMPLT INSP wv A. ALL WASTE, COMBUSTIBLE MATERIAL AND DMlO 190CT06 CHEMICALS HAVE BEEN REMOVED FROM THE WORK SITE AT THE COMPLETION OF THE JOB. sv B. SUPERVISOR TO VERIFY THAT WORK SITE DMlO 190CT06 CLEANLINESS IS ACCEPTABLE.

RECURRING TASK ACTIVITY ** **********

• • ** : R2088495 05 ** ** ** ** **** ** W/O NBR A/R NBR : A2145130 ** **********

• • ** ** W/O STATUS : ASIGND 240CT06 ** **********

• • ** ACT STATUS

COMPLT 190CT06 ** ** ** ** TYPE : ACT **** **********

• • • • **** ****** ** ** ** ****** ** ** ** PAGE: 07 --_---------------_-----------

SUMMARY

..............................

CO~ENTS.===============================

CAUSE CODE: __ REPAIR CODE: ADDITIONAL PAGES ATTACHED

? ___ ETT REMOVED ? __ .......................

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MEASUREMENT Am TEST EQUIPMENT=========================

ID NUMBER DATE USED DESCRIPTION ADDITIONAL PAGES ATTACHED ? - ...............................

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FINAL REVIEWS==================================

MAINT DATE : QC DATE : OTHER DATE

MEASUREMENT AND TEST EQUIPMENT ID NUMBER DATE USED DESCRIPTION

• • **********

• • ** **** **********

• • • • **** ** ** ** ** **** ** ** ********** ** ** ** ** **********

• • ** RECURRING TASK ACTIVITY W/O NBR : R2088495 05 A/R NBR : A2145130 W/O STATUS : ASIGND 240CT06 ACT STATUS : COMPLT 190CT06

• • ** ** ** TYPE : ACT ****** ** ** ** ****** ** ** ** PAGE: 08 ACTIVITY

• • **********

• • ** **** **********

• • • • **** ** ** ** ** **** ** ** **********

• • ** ** ** **********

• • ** WORK ORDER COMPONENT LIST WORK ORDER

• • ** ** ** NUMBER : R2088495 TYPE: ACT ****** ** ** ** STATUS : ASIGND 240CT06 ****** ** ** ** PAGE: 01 ............................

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_---_-----_--------WORK ORDER COMPONENTS================================

COMPONENT ID - * -- OC 1 187 __ F MISC 187 LOCATION : MULTI 000 SAFETY :A EQ : y CHEM/RAD MAP AFC - Assignment Report Page 1 of 2 AR 00466683 Report iff Fac: Oyster Creek AR Type: CR Status: APPROVED iff Unit: 01 Owed To: ACAPALL Due Date: 041 14/20 0 6 iff System: 854 Event Date: 03/14/2006 ,evel/Class: .low )iscovered:

IVWPIMS AR: Component

1. T-23-3 rction Request Details 33 41 D Disc Date: 0 3/ 1412 00 6 H02 Orig Date:

03/15/2006

Description:

SIGNS OF CORROSION PRESENT ON TANK T-23-3 Originator:

DAVE OLSZEWSKI Supv Contacted:

Rick Skelskey Condition

Description:

During License Renewal Aging Management Program Walkdowns for the new Aboveground Tank Program there was some corrosion present on the stands of the Nitrogen and Fill Storage Tank (T-23-3). The patch of corrosion should be cleaned and recoated.

Immediate actions taken: Notified System Mangaer, Bob Barbieri; Engineering Programs Manager, Rick Skelskey; and drafted this IR. Recommended Actions:

The area in question needs to be cleaned and recoated for maximum protection of the tank. What activities, processes, or procedures were involved? License Renewal Aging Management Programs Walksdowns for the Aboveground Tank Program. List of knowledgeable individuals:

Bob Barbieri and Rick Skelskey Operable Basis: TEH: The nitrogen tank can perform all intended functions and is operable.

Reportable Basis: This is not reportable.

Reviewed by: THOMAS E HEDIGAN 03/15/2006 16:03:05 CST Reviewer Comments:

None SOC Reviewed by: THOMAS MCLEAN 03/16/2006 12:38:03 CST SOC Comments:

03/15/2006 Close to PIMS AR 3/16/06 TAP - follow up engineering to add additional comments from subsequent walkdown.

http://cccmvdO 1 .ceco.com:6 123/cap/servlet/ReporttARServlet 3/17/2006

~ - Page 2 of 2 -* AW - Assignment Report 3/16/06 TMcL - After further inspection of the Nitrogen and Fill Storage Tank (T-23-3) there were more indications of corrosion on all of the supports of the tank, on the bottom of the tank, and around the piping. All of these areas do need to be evaluated and addressed, as appropriately. Grout deterioration was identified on the cocrete support. WGE to Engineering Propgrams to inspect the tank with a structucral engineer and evaluate work required.

Assignments Assign #: - 01 Assigned To: Status: AWAIT/C Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date: 0 312012 00 6 Assign Type: TRKG Sec Grp: Orig Due Date: w/pp/ppw Priority:

Schedule Ref: Unit Condition:

Subject/Description:

SIGNS OF CORROSION PRESENT ON TANK T-23-3 http://cccmvd0 1 .ceco.com:6 123/cap/servlet/ReportARServlet 3/17/2006 AR 00548227 Report APPROVED Aff Fac: Oyster Creek AR Type: CR Status: Aff Unit: NA Owed To: ACAPALL Due Date: 11/23/2006 Aff System: 187 Event Date:

10/24/2006 LevellClass:

Discovered:

WWPIMS AR: Component

1. 187 CR 4/ Disc Date:

10/24/2006 How H02 Orig Date:

10/24/2006

Subject:

PITS IN TORUS BAYS 5,15, AND 18 Action Request Details

Description:

Originator:

PETER TAMBURRO Supv Contacted:

Howie Ray Condition

Description:

Inspection of the Torus per specification SP-1302-32-120 Revision 3 has found 4 pits which are greater than 40 mils deep. Per the requirements SP-1302-32-120 Revision 3 these pits shall be evaluated by Engineering.

Data for each pit is as follows Pit 18-P2-01 Data - Bay 18 Metal Loss -- 0.041 inches Pit Diameter -- 0.25 inches Pit 15-P2-01 Data - Bay 15 Metal Loss -- 0.044 inches Pit Diameter -- 0.25 inches Pit 05-P1-01 Data - Bay 05 Metal Loss -- 0.041 inches Pit Diameter -- 0.038 inches Pit 05-P5-01 Data - Bay 05 Metal Loss -- 0.076 inches Pit Diameter -- 0.025 inches Operability Preliminary Evaluation of these four pits indicates that they are well within design basis acceptance criteria.

Immediate actions taken: Informed Howie Ray and THe Engineering Control Center Recommended Actions:

Perform a Technical Evaluation to disposistion these pits Operable Basis: REB Pits appear to be minor and this will be confirmed by the engineering evaluation. Primary containment is not currently required to be operable.

http://cccmvaO 1 ,ceco.com:6 123/cap/sen~let/ReportARServlet 10/25/2006 cz- AK - msignmenr.

neport rage or 13 c Reportable Basis: bsignments Assign #: - 01 Assigned To: Status: AWAlT/C Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date: 10/29/2006 Assign Type: TRKG Sec Grp: Priority:

Schedule Ref: Unit Condition:

Subject/Description:

PITS IN TORUS BAYS 5, 15, AND 18 Orig Due Date: PIJ/PIJ/IJPIJP http://cccmva0 1 .ceco .corn: 6 123/cap/servlet/Repo1tARS ervlet 10/25/2006 AR 00550022 Report Aff Fac: Oyster Creek AR Type: CR Status: APPROVED Aff Unit: 01 Owed To: ACAPALL Due Date: 11/26/2006 Aff System: 187 CR 41 D LevellClass:

How H02 Discovered: Event Date:

10/26/2006 Disc Date: 10/26/2006 Orig Date: 10/27/2006 WRlPlMS AR: Component

1. -~ 4ction Request Details

Subject:

PORTION OF THE DRYWELL CURB REMOVED MAY AFFECT PRA

Description:

Originator:

THOMAS E QUINTENZ Supv Contacted: Fred Polaski Condition

Description:

In 1986, two trenches were excavated in the drywell on the perimeter of the floor to gain access to the drywell vessel in the sand bed area on the interior of the drywell. The purpose of the excavation was to perform UT measurements of the drywell vessel in the lower portions of the vessel adjacent to the sand bed area from the interior of the drywell. As a part of that excavation the concrete curb was also removed. After the measurements were taken the floor and curb were not returned to original configuration, but a moisture barrier was installed in the floor excavation.

As part of the ongoing assessment of the condition of water in the trench in the drywell and the ongoing NRC Inspection, a question was asked concerning the effect of the lack of the curb on our Severe Accident Mitigation Alternatives (SAMA) Analysis done for the License Renewal Application.

The SAMA relies on the Level 2 PRA to provide the inputs to the analysis.

The Level 2 PRA did consider the original configuration at Oyster Creek with the floor and curb as compared to other Mark 1 containments, which do not have the curb structure as part of the floor structure.

Corporate Risk Assessment has provided their initial assessment of the condition and provided the following:

Although the Level 2 PRA took some credit for the curb probabilistically, it is not significant enough to markedly change LERF or the conclusions of the SAMA analysis.

The failure probabilities for the OC liner due to core material impingement are not significantly different than those for other Mark I containments where the concrete curb does not exist. In addition, the Manager of License Renewal was contacted to provide his assessment on the condition.

He indicated the Risk Assessment review would conclude this would not result in a change to the LRA. The Site Risk Assessment person was notified of this condition as well to assure his awareness of this condition.

The site Risk Assessment person requested that one of the recommendations communicated from the PRA contractor be added to the recommendations for this IR. This recommendation is to provide a delta LERF value for his review.

In addition, he recommended this condition be reviewed against our Severe Accident Management strategy for the site. http://cccmvaO 1 .ceco.com:

6 123/cap/servlet/ReportARServlet 10/28/2006 Immediate actions taken: Requested Corporate Risk Assessment review the question, and to provide an initial assessment of the condition. Communicated the results with the License Renewal Manager for an assessment of the results provided by Risk Assessment. Made the Site Risk Assessment person aware of the condition and solicited suggested actions. Recommended Actions: Issue an action to Corporate Risk Assessment to document this deficiency in a URE (Updating Requirement Evaluation) and review this condition for potential changes in the PRA. To Greg Krueger(NCS A8009ENRSK)

Issue an action to Corporate Risk Assessment to provide the delta LERF as a result of this finding to the Site Risk Assessment person. To Greg Krueger(NCS A8009ENRSK) Issue an action to the License Renewal Project to document the conclusions relative to impact on the LRA to Fred Polaski (A8069ENPRJ) Issue an action to the Site Risk Assessment person to review the condition with Corporate Risk Assessment, and against the Severe Accident Management strategy for the site. Issue an action to Mechanical/StructuraI Design Engineering to assure all affected documents as a result of this configuration change in the Drywell Structure are appropriately revised, or have document change paperwork posted against the documents affected.

What activities, processes, or procedures were involved?

PRA analysis and SAMA Analysis in support of License Renewal Why did the condition happen? Not known at this time What are the consequences?

May affect the content of the Level 2 PRA, minimal affect to the SAMA Were any procedural requirements impacted?

Not known Were there any adverse physical conditions?

None identified List of knowledgeable individuals:

Fred Polaski, Greg Krueger, Mike Godknecht verbally and by e-mail. Others by e-mail Repeat or similar condition?

Not known at this time.

Operable Basis: N/A Reportable Basis: NIA ksignments ~ ~ Assign #: - 01 Assigned To: Status: AWAIT/C Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date: 11/01/2006 http://cccmva0 1 .ceco.com:6 123/cap/servlet/ReportARServlet 10/28/2006 Assign Type: TRKG Sec Grp: Orig Due Date: c~pJpc~I~ppp Priority:

Schedule Ref: Unit Condition:

Subject/Description:

PORTION OF THE DRYWELL CURB REMOVED MAY AFFECT PRA http://cccmva0

1. ceco .corn: 6 123/cap/servlet/ReportARS ervlet 10/28/2006 AR 00550181 Report CR Status: APPROVED Aff Fac: Oyster Creek AR Type: Aff Unit: NA Owed To: ACAPALL Due Date:

02/08/2007 Aff System:

-- Event Date:

10/27/2006 Disc Date: 10/27/2006 CR 41 D LevellClass:

How H03C Orig Date:

10/27/2006 Discovered:

WRlPlMS AR: Component

1. Sction Request Details Subject : NO INSPECTION CRITERIA IN GROUT PROCEDURE.

==

Description:==

Originator:

THOMAS 3 BURKE I11 Supv Contacted:

Phil Scallon Condition Description

Procedure 2400-SMM-3150.16, rev. 08 (Mixing and Placement of Grout) does not direct the craft or QV to perform a final visual inspection of the finished grout installation, nor is there any acceptance criteria noted.

Final grout inspection should occur after the grout is fully cured. Typical inspection criteria should include the following:

Verify the final grout placement is free of visual defects, such as excessive cracking, shrinkage, voids or flaking. Also note: Section 6.4.3.b requests the installer to record "if cubes for testing are required" and references section

5.1. Section

5.1 has no mention of how or when to take test cubes. There is also a request in step 6.4.3.f for the installer to record'the cube set number. It appears there is no direction in this procedure to have the grout sampled by lot for compression testing.

Immediate actions taken: Generated I.R. Recommended Actions: Revise procedure as noted in condition description above. What activities, processes, or procedures were involved?

Procedure 2400-SMM-3150.16, rev. 08 (Mixing and Placement of Grout) List of knowledgeable individuals:

Tom Burke -NOS/QV Phil Scallon -NOS Lead Assessor Operable Basis: N/A Reportable Basis: N/A SOC Reviewed by: 10/28/2006 05:23:58 CDT SOC Comments:

10/28/06 tas created PCRA to make recomended revisions.

Close to action created. http ://cccmvaO

1. ceco .corn: 6 123/cap/servlet/ReportARS ervlet 10/28/2006 Assignments Assign #: - 01 Assigned To: Status: AWAIT/C Aff Fac: Oyster Creek Prim Grp: ACAPALL Due Date: 11/01/2006 Assign Type: TRKG Sec Grp: Orig Due Date: r-l~l/~lcl/cl~lcl~l Priority: Schedule Ref:

Unit Condition:

Subject/Description:

NO INSPECTION CRITERIA IN GROUT PROCEDURE.

02 Assigned To: Status: NTFY/PRI Assign #: - Aff Fac: Oyster Creek Prim Grp: A5322MM Due Date: 02/08/2007 Assign Type: PCRA Sec Grp: Orig Due Date:

Priority: Schedule Ref: Unit Condition: Revise Procedure 2400-SMM-3150.16, rev. 08 (Mixing and PI acement of Grout) as Subject/Description:

in IR, http://cccmvaO 1 .ceco.com:

6 123/cap/servlet/ReportARS ervlet 10/28/2006 AR 00548459 Report Aff Fac: Oyster Creek AR Type: CR Status: APPROVED Aff Unit: NA Owed To: ACAPALL Due Date: 11/23/2006 Aff System: 187 Event Date: 10/24/2006 CR 41~ Disc Date:

10/24/2 00 6 LevellClass

How H02 Orig Date:

10/24/2006 Discovered:

WWPIMS AR: Component

1. 187 hction Request Details

Subject:

LOCAL UT READING BELOW ACCEPTANCE CRITERIA

Description:

Originator:

PETER TAMBURRO Supv Contacted: Howie Ray Condition

Description:

During Review of Internal Drywell Vessel UT data for Elevation 23 in Bay 17 several local readings were less than the acceptance criteria in IS 328227-004 Revision 13 section 3.2.7.4 which stated that all local reading less than 0.655 shall be entered into the Corrective action and evaluation by Engineering..

The intent of the criteria Is to provide a low threshold for all inspection results so that any unexpected readings in 2006 will be quickly identified and dispositioned.

This is the first time these locations have been inspected.

The inspection data indicates the two separate local readings in Bay 15 as 0.652 and 0.628. In addition a third local reading of 0.655 was recorded at a different location in bay 17. This local value meets the criteria in IS 328227-004 Revision 13 section 3.2.7.4. Operability The Oyster Creek Drywell is operable based on Calculation C-1302-187 E310-037.

The intent of the criteria In specification IS 328227-004 Revision 13 is to provide a low threshold for all inspection results so that any unexpected readings will be evaluated.

The UT inspections in bay 15 show two local reading of 0.628and -652. In addition the inspection shows that the average thickness in the 6 by 6 area around these locations is 0.758. The minimum local code required thickness for the Drywell at this elevation is 0.36 and the minimum average code required thickness is 0.541 Therefore these as-found readings meet design basis. In addition these areas will not corrode to below the minimum required thickness prior to 2029. The Oyster Creek Drywell Corrosions Monitoring Program has (ECR 05-00275).

http ://cccmvaO 1 .ceco. com:6 123/cap/servlet/ReportARS ervlet 10/25/2006 demonstrated that the Drywell Vessel above the sandbed may be thinning at corrosion rates of less than 1 mil per year. Therefore even when assuming a 1 mil per year corrosion rate the local reading which was measured at 0.628 will corrode to only 0.605 by 2029 which leaves substantial margin. Recommendation AClT to Include these UT result in the Oyster Creek Drywell Corrosions Monitoring Program Final Report for 1R21. Immediate actions taken:

Informed Howie ray and Tom Quintenz Recommended Actions: ACIT to include these UT result in the Oyster Creek Drywell Corrosions Monitoring Program Final Report for 1R21. Operable Basis: REB Per engineering:

The Oyster Creek Drywell is operable based on Calculation C-1302-187 E310-037.

Reportable Basis: N/A 4. . .. ,. http://cccmva0 1 .ceco.com:6123/cap/servlet/ReportARServlet 10/25/2006