ML110670527
| ML110670527 | |
| Person / Time | |
|---|---|
| Site: | Humboldt Bay |
| Issue date: | 03/07/2011 |
| From: | Pacific Gas & Electric Co |
| To: | NRC/FSME |
| References | |
| Download: ML110670527 (23) | |
Text
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- Initiate License Termination Plan (LTP) review process with the NRC
" Provide overview of path forward
- Schedule
- Issues/Concerns
- Methodology of Derived Concentration Guideline Levels (DCGLs)
- Final Status Survey (FSS) release criteria
Site Desc iptiOn
" Humboldt Bay Power Plant.(HBPP) Unit 3 a 220 MWt (65 Mwe) Boiling Water Reactor
" HBPP Unit 3 operated commercially from August 1963 until July 1976
" Unit 3 is on same site as the ISFSI, fossil Units 1 and 2 and recently completed 10 unit Humboldt Bay Generating Station (HBGS) 3
i i
.... a j.o Major Activte I'7,
- HBGS completed construction and startup (2010)
- Units I and 2 demolition (2010-2011)
- 60 Kv Switchyard (2012)
- Reactor vessel removal (2012)
- Removal and demolition of Unit 3 piping, components and structures (2010-2014)
- Site FSS (2015-2016) z-I
W tFI Li ce nse Te r m i.n.atio Apply "lessons learned" from previous LTP submittals Draw upon experience of HBPP personnel Maintain open dialogue early with the NRC and Stakeholders
§-r A strong foundation provides for defensible program a strong, 5
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i~ cense Term inati ion-Historical Site Assessment (HSA) developed Performed characterizations Developed site specific DCGLs Develop and Submit LTP, License Amendment Request (LAR), HSA
>Public Meeting
>NRC Approval/License Amendment Develop FSS Program Perform FSS Submit Final Reports NRC Terminates License 6
'LT F Sc.hedu I 'EkIVIi Develop DCGLs Complete LTP Meeting with NRC March 7, 2011 Write LTP In Progress I
Submit LTP December 2011 7
3 LL&Issess M,
" Personal interviews of former HBPP personnel employed during Unit 3 operations
" Documents reviewed
- Plant operating reports and logs
- Licensee Event Reports
- Construction and as-built drawings
- Maps and photographs
- Environmental and radiological characterization reports
" Submit with LTP 8
aracterizat.ons
" Characterization performed in 1997
- MARSSIM based sampling survey
" A comprehensive characterization effort performed in 2007-2008
- Surface scans and fixed-point measurements
- Soil sampling and gamma walkovers
" Ongoing characterization of the site
- Excavation soil sampling
- Cross-Contamination Prevention & Monitoring Plan 9
Formulate an initial list of potential nuclides yes no 10
DCGLs
- ~
ýtl Site-Specific Suite of Nuclides H-3 1-129 Pu-241 C-14 Cs-137 Am-241 Ni-59 Eu-152 Cm-243 Co-60 Eu-I 54 Cm-244 Ni-63 Np-237 Cm-245 Sr-90 Pu-238 Cm-246 Nb-94 Pu-239 Tc-99 Pu-240 11
DCGLs
" HBPP Unit 3 located on an industrial site co-located with electricity producing units (HBGS)
- Humboldt Bay site essential to electrical needs in the area
- No better site available in the region to locate generating stations Infrastructure in place Remote location California Coastal Commission Environmental impact
- Active Switchyard
- Transmission/Distribution
- Natural Gas 12
DCGLs
'I Scenarios 0 Building Surfaces
- Industrial Worker
- Parameters
- Soils
- Industrial Worker
- Parameters 13
"evel op F S S Proga.m rX 11
- Develop HBPP Site-Specific FSS Procedures
- Develop Technical Basis Documents as necessary to support FSS effort
- Compi Ie Survey Unit FSS Survey Packages for each Survey Area
- Identify fin
- Perform nE a Iclassifications for Survey Units
.cessary reviews and approvals of FSS Survey Packages 14
I I Perftorm
..... F
- Take isolation and controls of units
- Perform FSS
- Perform any investigations
- Perform Data Quality Assessment (DQA) on data
- Formulate decision based on Data Quality Objectives (DQOs)
- Archive data 15
Submit Final eports i t-a i m
~1 e Write "Pilot Report"
- Compile records when all Survey Units in a Survey Area complete
- Write and submit Final Report for each Survey Area
- Archive the report 16
u:Lture Interacti ons
!II
" Teleconference Meetings
" Correspondence
" Public Meeting(s) 17
NRC/PG&E MEETING MARCH 7,2011 HUMBOLDT BAY POWER PLANT ALTERNATE DISPOSAL EXEMPTION REQUEST Pacific Gas and Electric Company"
PURPOSE and AGENDA rDiscuss results of first exe mption request
- 1 r;-Discuss proposed second exe mption request 2
FIRST EXEMPTION REQUEST go-
-b
- . April 1, 2010
- PG&E Submits Request for 200,000 cu. ft.
July 16, 2010
- NRC Submits Questions rt July 29, 2010 - NRC/PG&E Public Meeting r;7 August 12, 2010-PG&E Submits Revised Request v-, November 2, 2010-r December 16, 2010 NRC Approves
- State of Idaho Concurs 3
FIRST EXEMPTION REQUEST Concentration Limits in First Exemption Request r Actual Concentration Values (to date) 4
SECOND EXEMPTION REQUEST r' Proposed for 2,000,000 cu. ft.
- Basis for Volume
- Similar to First Request
- - Concentration Limits from First Request V Isotope Concentrations Based on Actual Shipments/Disposal
- Dose Estimates for Second Request
.Submittal Expected in Mid-2011 5
CONCLUSIONS Con mments/Questions 6