ML20072S419

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Forwards Proposed Work List for Apr 1983 & Supplemental Work List for May 1983,per Nrc/Cpc Work Authorization Procedure for Resumption of Remedial Soils Work
ML20072S419
Person / Time
Site: Midland
Issue date: 03/29/1983
From: Miller D
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To: Shafer W
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
CSC-6622, NUDOCS 8304070174
Download: ML20072S419 (17)
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h e asb Consumem Donald 8 Miller, Jr Power su, u_,,,

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Midland Project: PO Box 1963, Midland, MI 48640 e (617) 631-8660 March 29,1983 IPA STAFF I g4 P/RAi SCSs 1/10 2 9AO ZP? SLO Mr. W. D. Shafer, Chief  ;[R33 TC Midland Project Section Ca5P  ;

U.S. Nuclear Regulatory Cmmission UE' l

Region III ML i 799 Roosevelt Road SL fI LE Mj Glen Ellyn, IL 60137 MIDIAND PRCATECT GWO 7020

. REMEDIAL SOILS WORK AUTHORIZATION File: 0485.16 UFI: 42*05*22*04 Serial: CSC-6622 12*32 We are enclosing the proposed list of work in accordance with the "NBC and CPCo Work Authorization Procedure" for the period between April 1,1983 and April 30,1983. Please review this work list and authorize the specific work items as established in the procedure.

Also enclosed is a Supplemental Work Activity List for May 1983. Your review, cmments and authorization of the specific work items as in accordance with the procedure are similarly requested.

We have canpleted our review of the documents associated with the following activities. Based on our review, we ask for your approval of these activities:

105050908 - Perform Pier Ioad Test (Pier llW) 202550100 - Install Deep Seated Bench Marks (SWPS)

-207050605 - SWPS Dewatering - Install Remaining Ejector Wells 207050600 - Install Piezcmeters (Full Release) 207050635 - SWPS Dewatering - Install Dewatering Discharge System i

k g D. B. Miller, Jr.

. Site Manager ,

4 DBM/GRT/lrb Attachments i

8304070174 830329 l

PDR A

ADOCK 05000329 i PDR APR 41983

( 12fDI

, 1 Consumers Power Company Attachment to Sarial CSC-6622 Midland Plant Units 1 & 2 -

l .

WORK ACTIVITY LIST FOR THE PERIOD BETWEEN APRIL 1, 1983 AND APRIL 30, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 ACTIVITY PREVIOUS REGION III NEW OR PROGRAM, WORK AREA & ACTIVITY DESIGNATION REVISED ITEMS IDENTIFIER GENERAL QUALITY PROGRAM 102351100 Approval of MPQP-2, Rev 1 A(10/22/82) 102351115 Approval of MPQP-1, Rev 5 3 (1/11/83) A (1/11/83)

AUXILIARY BUILDING & FIVP UNDERPINNING PROGRAM ACCESS SHAFTS 105050906 Redress the slope lay back surfaces A (3/17/83) l WEST FIVP l

l 102150010 Install Anchor Bolts & Rods 1 (8/12/82) A (8/13/82)

(includes' hardness test on rods, drill concrete & steel and tensioning) l EAST FIVP

112150010 Install Anchor Bolts & Rods I (8/12/82) A(8/13/82)

(includes hardness tests on rods, drill concrete & steel, and tension)

CONTROL TOWER POST TENSION VERIFICATION 102550203 Verify Post Tension Loads A(2/22/83)

JEKostielney 3/25/83 eiO882-2439d173-163

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2 Consumers Power Comprny .

Attachment to Serisl CSC-6622 Midland Plant Units 1 & 2

  • l WORK ACTIVITY LIST FOR THE PERIOD BETWEEN APRIL 1, 1983 AND APRIL 30, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III lREVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION 162550010 WEST TURBINE / AUX BUILDING PIPE TURNNEL MODIFICATION Install Platiorm at El 600'

( includes installation of Pipe Tunnel Reinforcement, cutting of opening, Modification of Handrails and Ladder and Protection of Existing Piping) 4 152550010 EAST TURBINE / AUX BUILDING PIPE TUNNEL MODIFICATION Install Platform at El 600' l

.( includes installation of Pipe Tunnel Reinforcement.

. cutting of opening, Modification of Handrails and Ladder and Protection of Existing Piping)

BUILDING MONITORING 136050043 Maintain Instrument System 3 (8/12/82) A(8/12/82)

132550050 Install, wire conduit and raceway from pier 2(12/13/82) A(12/13/82) l to data room for Pier Instrumentation I

I 165052021 Terminate Cables in Data Room & Terminal Boxes A(3/10/83)

& Pier Instrumentation GENERAL TEMPORARY DEWATERING

, 125150050 Continue Monitoring Utility Protection Pits (4) 3 (8/12/82) A(8/12/82) 115150020 Continue Operation of Freeze System & Wells 3 (8/12/82) A(8/12/82)

  • 522550025 Excavate, Repair and Backfill Piezometer HP-2
  • 522550020 Repair Six (6) Existing Observation Wells (WB-1, WP-2, COE-10, PD-18, W-2, PD-38) 125150051 Install Clay to Below Duct Bank (pit 4) 1 (8/12/82) miO882-2439d173-163 JEKostielney 3/25/83

3 Consumers Power Company Attachment to Serial CSC-6622 Midland Plant Units 1 & 2

. WORK ACTIVITY LIST FOR THE PERIOD BETW5EN APRIL 1, 1983 AND APRIL 30, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION 125150052 Repair Ductbank (Pit 4) 1 (8/25/82)

(includes exca'v ate, drift, repair and backfill) 115150026 Remove 36" Casing and Backfill 42" Hole 1 (9/17/82)

CRACK MAPPING (includes scaffolding platforms, ladders and extra-ordinary clean up) 102250200 EPA (East & West) 3 (8/12/82) A(8/12/82) 102250105 FIVP (East & West) 3 (8/12/82) A(8/12/82) 102250100 Control Tower & Remainder of Aux Bldg 3 (8/12/82) A(8/12/82)

PIER 12W 165054010 Install & Load Pier 12W3 1 (8/12/82) A(12/9/82)

PIER 11W 165052027 Drift from Access Shaft to Pier 11W1 (includes access pit) 1 (8/25/82) A(2/22/83) 165053015 Excavate Pier 11W2 1 (8/25/82) A(2/22/83) 165054015 Install & Load Pier 11W3 1 (8/25/82) A(2/22/83)

(includes install bituminous plywood forms) 105050908 Perform Pier Load Test 1 (8/25/82)

PIER 9W 165054005 Install & Load Pier 9W3 1 (9/17/82) A(2/24/83)

.miO882-2439d173-163 JEKostielney 3/25/83

4 iCensumsrs Power Comp:ny . Attachment to Serial CSC-6622 l Midland Plant Units 1 & 2 -

WORK ACTIVITY LIST FOR THE PERIOD BETWEEN APRIL 1, 1983 AND APRIL 30, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION PIER 12E 155054010 Install & Load Pier 12E3 1 (8/12/82) A(12/9/82)

PIER IIE 155052027 Drift from Access Shaft to Pier 11El (includes access pit) 1 (8/25/82) A(2/22/83) 155053015 Excavate Pier 11E2 1 (8/25/82) A(2/22/83) 155054015 -

Install & Load Pier 11E 3 1 (8/25/82) A(2/22/83)

PIER 9E 155054005 Install & Load Pier 9E 3 1 (9/17/82) A(2/24/83.)

! PIER 8E 1

155052025 Drift from Pier 9E to Pier 8E1 1-(9/17/82)

155053020 Excavate Pier 8E2 1 (9/17/82) 155054020 Install & Load Pier 8E3 ,

1 (9/17/82)

GRILLAGE STRUCTURE AT PIER 8E 155052305 Drift for and Install Bulkhead from Pier 8E north to 1 (9/17/82)

Containment Walli -

155059025 Excavate and Remove Hudslab for Grillage Beams Between 1 (9/17/82) l Pier 8E and Containmenti Excavate for Support Columns next to Containment 2 155053025 1 (9/17/82) 155055003 Install Steel Support Columns next to Containment 1 (9/17/82) 155055010 Install & Load Grillage Structure at Pier 8E 1 (9/17/82)

I miO882-2439d173-163 JEKostielney 3/25/83

5

Consumers Pcwsr Company Attachment to Serial CSC-6622
Midland Plant Units 1 & 2 -

WORK ACTIVITY LIST FOR THE PERIOD BETWEEN APRIL 1, 1983 AND APRIL 30, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III l REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION PIER 8W 165052025 Drift from Pier 9W to Pier 8W1 1 (9/17/82) 165053020 Excavate Pier 8W2 1 (9/17/82) 1 165054020 Install & Load Pier 8W3 1 (9/17/82)

GRILLAGE STRUCTURE AT PIER 8W 165052305 Drift for and Install Bulkhead from Pier 8W north to 1 (9/17/82)

Containment Wall!

165059025 Excavate and Remove Mudslab for Grillage Beams Between 1 (9/17/82)

Pier 8W and Containment 1 165053025 Excavate for Support Columns next to Containment2 1 (9/17/82)

165055003 Install Steel Support Columns next to Containment 1 (9/17/82) 165055010 Install & Load Grillage Structure at Pier 8W 1 (9/17/82)

PIER KC2 165052325 Drift from West Access Shaft to Pier KC21 1 (9/17/82)

PIER KC11 155052325 Drift from East Access Shaft to Pier KC111 1 (9/17/82)

EXCAVATION ZONES

  • 155052020 Excavate / Lag Zone Y1
  • 165052020 Excavate / Lag Zone Z1
aiO882-2439d173-163 JEKostielney 3/25/83 o .

6 Censumers Power Comprny . Attachment to Serial CSC-6622

Midland Plant Units 1 & 2 -

WORK ACTIVITY LIST FOR THE PERIOD BETWEEN APRIL 1, 1983 AND APRIL 30, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION RESHORE PIERS

  • 155052050 Reshore E9, Ell, E12 and Install E10 Bulkhead 4
  • 165052050 Reshore W9, Wil, W12 and Install W10 Bulkhead 5 i

PIER W10 165053035 Excavate Pier 10W2 1 (9/17/82)

  • 165054030 . Install & Load Pier 10W3 PIER E10 155053035 Excavate Pier 10E2 1 (9/17/82)
  • 155054030 Install & Load Pier 10E3 BEAM CONNECTIONS 102250201 Modify Beam Connections at elev 646 ( 1 connection) 1 (9/17/82) 102250203 Modify Beam Connections at elev 659 ( 2 connections) 2(12/13/82) 102250205 Modify Beam Connections at'clev 704 (10 connections) 2(12/13/82)

El-569 SLAB FIX

  • 102250208 Survey / Layout for Lagineering Review in Preparation for Slab Fix @ El 659 SERVICE WATER PUMP STRUCTURE UNDERPINNING PROGRAM POST TENSIONING SYSTEM 202555170 Post Tensioning Tendon inspection & maintenance 3 (12/7/82) A(12/7/82)

DEWATERING 207050618 Install 6 Preliminary Ejector Wells A(3/10/83) niO882-2439d173-163 JEKostielney 3/25/83

. 7 iconsumersPowerCompany Attschment to Sarial CSC-6022 iMidlend Plant Units 1 & 2 -

WORK ACTIVITY LIST FOR THE PERIOD BETWEEN APRIL 1, 1983 AND APRIL 30, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR -ACTIVITY PREVIOUS REGION III iREVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION

    • 207050605 Install Remaining Ejector Wells R 207050385 Core Drill SWPS Slab for Ejector Wells A (3/17/83) 207050386 Core Drill CWIS Slab for Ejector Wells 1 (11/1/82) A (3/17/83) 207050603 Probe for Shallow Utilities 3(12/29/83) A(12/29/82)
    • 207050604 Probe for Deep Utilities Within El 610 Excavation Limits 1 (9/17/82) A(3/10/83) i (Ref Dwg C-2031)
  • 207050748 Probe for Deep Utilities Outside El 610 Excavation Limits (Ref Dwg C-2031) 207050600 Install Piezometers R 207050645 Install Seal Between SWPS & CWIS i(8/25/82)A(2/22/83) 207050635 Install Dewatering Discharge System 2 (9/17/82)

(including headers, tank, pumps and electrical) 207050387 Convert 7 Wells used on 72" pipe repair to support SWPS 1 (11/1/82) A(2/11/83)

I dewatering. (Includes install new ejectors, temporary headers, operate, & maintain)

BUILDING MONITORING 202550100 Install Deep Seated Bench Marks 1 (8/12/82) 206050105 Crack Map SWPS 1 (9/17/82) A(3/10/83) 202550130 Installation of Extensometer Anchors i

siO882-2439d173-163 JEKostielney 3/25/83 l

'8

Cen
umers Pcwar Comp:ny . Attschment to Snrial CSC-6622 iMidland Plant Units 1 & 2 -

WORK ACTIVITY , LIST FOR THE PERIOD BETWEEN APRIL 1, 1983 AND APRIL 30, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982-NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION 202550120 Installation of Extensometer Covers 206050100 Install EFtensometers 1 (9/17/82)

    • 206050106 Install Instruments and Terminate Instrument Cables 1 (9/17/82)

(Includes testing & calibration) 206050102 Install Brackets 1 (9/17/82) 207550100 ,Eebar Mapping & Core Drilling for Conduit & Raceway A(3/10/83) 207550103 Install Conduit & Raceway 1 (9/17/82) A(2/22/83) 202550104 Install cable and terminate at Data Acquisition Room 1 (9/17/82)

    • 206050101 Install Permanent Benchmark Covers 1 (9/17/82) 206050104 Baseline, Operate, and Maintain Instrument System R ACCESS SHAFT & OPEN CUT EXCAVATION 207050335 Install Soldier Piles 1 (8/12/82) 202550162 Relocate Fire Protection Pipeline 1 (8/12/82) A (9/17/82)
  • 207050400 Repair SWPS Duct Bank BORATED WATER STORAGE TANK FOUNDATION _& TANK REPAIR PROGRAM UNIT 1 TANK 312150111 Rebar Mapping 3 (8/25/82) A (8/25/82) 312150005 Drill and Grout Shear Connectors 2(12/13/82) niO882-2439d173-163 JEKostielney 3/25/83 9

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9 IConsumers Powar Company Attachment to Sariel CSC-6622

! Midland Plant Units 1 & 2' WORK ACTIVITY LIST FOR-THE PERIOD BETWEEN APRIL 1, 1983 AND APRIL 30, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 4

NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION l

312150011 Construct New Ring Beam 1 (8/12/82)

(set forms & place rebar, pour concrete) 312150211 Strip Waterproof Membrane on Valve Pit 3 (8/25/82) A (8/25/82) 312550019 Reinstall Electrical Ductbank 2 (9/17/82) 312550018 Reinstall Piping, Pipe Hangers and Electrical Facilities A (3/17/83)

UNIT 2 TANK 322150111 Rebar Mapping 3 (8/25/82) A (8/25/82) 322150005 Drill and Grout Shear Connectors 2(12/13/82) 322150011 Construct New Ring Beam 1 (8/12/82)

(set forms & place rebar, pour concrete) 322150211 Strip Waterproof Membrane on Valve Pit 3 (8/25/82) A (8/25/82) 322550019 Reinstall Electrical Duct Bank 2 (9/17/82) 322550018 Reinstall Piping, Pipe Hangers and Electrical Facilities A (3/17/83)

UNDERGROUND PIPE REPLACEMENT, REBEDDING, AND MONITORING PROGRAM i

TRAIN A & B 0F SERVICE WATER PIPE REPLACEMENT 202550500 Excavate Existing Pipe 1 (8/12/82) 202550510 Remove Existing Pipe 1 (8/25/82) 202550520 Install new pipe & expansion coupling 1 (8/25/82) laiO882-2439d173-163 JEKostielney 3/25/83 l

10 Consumers Powar Company

  • Attachment to Serial CSC-6622 Midlend Plant Units 1 & 2 WORK ACTIVITY. LIST FOR THE PERIOD BETWEEN APRIL 1, 1983 AND APRIL 30, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 20, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION 402550515 Hydro Test new pipe R 402550507 Perform Profiling & Ovality Check on New Piping R
  • 402550525 Temporary Backfill New Pipe PERMANENT INTRUSION DETECTION SYSTEM 732050002 . Install Wire (incl conduit) 3 (8/25/82) A(8/25/82) 732050003 Install Fence (incl fence posts & concrete strip 3 (8/25/82) A(8/25/82) 732050004 Install Grounding 3 (9/17/82) A(9/17/82)

OBS-4 Repair 52'2550018 Dutch Cone Soil Testing in Vicinity 2(12/13/82) of OBS-4 for exploratory " purposes Acid-Caustic Unloading Station 822550001 Excavate for install and backfill drainline and 1(11/1/82) slab for Acid-caustic unloading station at East end of Turbine Building l

EMERGENCY PERSONNEL LOCKS - UNIT 2 792550005 Excavate for, Install and Backfill Concrete Airlock Structure 1 (9/17/82) l PERMANENT DEWATERING PROGRAM

  • 522550015 Install Guard Posts for Protection of tiell J-1 aiO882-2439d173-163 JEKostielney 3/25/83

11 Consumers Pcwer Company Attechment to S rial CSC-6622 Midlend Plant Units 1 & 2 WORK ACTIVITY LIST FOR THE PERIOD BETWEEN APRIL 1, 1983 AND APRIL 30, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION YADD PERMANENT DEEPSEATED BENCHMARKS

  • 133150010 Yard-Install Permanent Deepseated Benchmarks (PBM-4 and PBM-5)

I eiO882-2439d173-163 JEKostielney 3/25/83

1 C:nzumera Pow 2r Company Attachment to S3 riel CSC-6622 Midland Plant Units 1 & 2 SUPPLEMENTAL WORK ACTIVITY LIST FOR THE PERIOD BETWEEN MAY 1, 1983 AND MAY 31, 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION AUXILIARY BUILDING & FIVP UNDERPINNING PROGRAM PIER KC 2 165053320 Excavate Pier KC 22 1 (9/17/82) 165054315 Install & Load Pier KC 28 1 (9/17/82)

PIER KC 11 155053320 Excavate Pier KC 112 1 (9/17/82) 155054315 Install & Load Pier KC 113 1 (9/17/82)

PIER W16

  • 165052055 Drift from West Access' Shaft to Pier W161 (includes Access Pit)
  • 165052055 Excavate Pier W162 PIER E16
  • 155052055 Drift from East Access Shaft to Pier E161
  • 155053037 Excavate Pier E162 PIER KC 3
  • 165052310 Drift to KC3 from W81
  • .b5053310 Excavate Pier KC 32 ciO882-2439f173-163 JEKostielney3/25/83

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2 Consumers Pcwer Comprny Attechment to Sarial CSC-6622 Midlend Plant Units 1 & 2 SUPPLEMENTAL WORK ACTIVITY LIST FOR THE PERIOD BETWEEN MAY 1, 1983 AND MAY 31, 1983 -

DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY .

PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION

  • 165054305 Install & Load KC 38 PIER KC 10
  • 155052310 Drift to KC 10 from E81
  • 155053310 Excavate Pier KC 102
  • 155054305 Install & Load KC 103 EXCAVATION ZONES
  • 165056375 Excavate / Lag Zone Z2
  • 155056375 Excavate / Lag Zone Y2 PIER W14
  • 165052057 Drift from West Access Shaft to Pier W141 (includes Access Pit)
  • 165053055 Excavate Pier W142
  • 165054050 Install & Load Pier W143 PIER E14
  • 155052057 Drift from East Access Shaft to Pier E141 (includes Access Pit)
  • 155053055 Excavate Pier E142 miO882-2439f173-163 JEKostielney 3/25/83

3

' Consumers Power Comprny .

Attschment to Serial CSC-6622

' Midland Plant Units 1 & 2

  • SUPPLEMENTAL WORK ACTIVITY LIST FOR THE PERIOD BETWEEN MAY 1, 1983 AND MAY 31', 1983 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III
REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION
  • 155054050 Install & Load Pier E148 SUPPORT BRACKET l
  • 152555010 Install Temporary Support Bracket at El
  • 162555010 Install Temporary Support Bracket at W1 SERVICE WATER PUMP STRUCTURE PROGRAM EXCAVATION
  • 207050780 Excavate East & North Wall of Access Shaft DEWATERING SYSTEM 207050620 Activate, Operate and Maintain Dewatering System 1 (9/17/82)

PERMANENT DEWATERING

  • 522550015 Excavate Headers & Metering Pits, Install Header and Level Monitoring System, Install Pumps, '

i Timers and Backfill BORATED WATER STORAGE TANK FOUNDATION AND TANK REPAIR PROGRAM 312550100 Install Instruments (includes testing and calibration) 1 (11/1/82) l 322550100 Install Instruments (includes testing and calib' ration) 1 (11/1/82) aiO882-2439f173-163 JEKostielney 3/25/83

NOTES A single asterisk (*) in left hand column indicates the work activity is a.new item.

A double asterisk (**) in left hand column indicates the work activity description has been revised. ,

Designation 1 in the right hand column indicates additional information is required by NRC Region III on this critical activity.

Designation 2 in the right hand column indicates no additional infarmation is required by NRC Region III on this critical activity.

Designation 3'in the right hand column indicates that the activity is not critical and work can proceed.

The date shown after the designation corresponds to the date of the NRC letter that provided the designation.

' An "A" following the designation indicates that Region III has provided approval to proceed with the activity. The date following the "A" corresponds with the date of the NRC letter that provides authorization to proceed with the work activity.

A "R" in the right hand column indicates that previcus designation or approval has been recinded because of a significant revision to the work activity or 90 days has elapsed or is expected to elapse since the work was authorized without the work being initiated.

l l

I i

I miO882-2439e173-163 l

t FOOTNOTES 1

Drift Activity normally includes

1. fabricate steel sets
2. excavate
3. install steel sets (Hilti bolts as necessary)
4. remove concrete (as necessary)
5. localized dewatering (as necessary)
6. install wood lagging .
7. place mudmst
8. stabilize soil (as necessary)
9. brace and/or rebrace -

2 Excavate Pier activity normally includes

1. excavate
2. concrete removal (as necessary)
3. dewatering (as necessary)
4. fabricate steel lagging
5. install steel lagging
6. auger bottom of pit to determine hydrostatic water pressure & plug (piers 10 & 12 E&W)
7. place mudmat
8. stabilize soil (as necessary) 3 Install & load Pier activity normally includes
1. fab & install embeds
2. fab & install reinforcing steel
3. install telltales
4. install Carlson meters (pier 11 E&W)
5. place concrete
6. fab & install leveling & bearing plates, jackstands
7. install jacks
8. transfer load.
  • 9. monitor and adjust pier jacks after load transfer 4 This number was previously associated with Excavate Access for Pier 10E which has been deleted from our list.

s This number was previously associated with Excavate Access for Pier 10W which has been deleted from our list.

I miO882-2439bl73-163

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