ML110670527

Presentation Slides from March 7, 2011, Meeting with Humboldt Bay Power Plant Unit 3, on Decommissioning, License Termination, & Alternate Disposal Exemption Request

ML110670527
Person / Time
Site:	Humboldt Bay
Issue date:	03/07/2011
From:	Pacific Gas & Electric Co
To:	NRC/FSME
References
Download: ML110670527 (23)

Text

hnirit IH Pr D r)prn I U O bj ect.......v 1111* 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 S uite 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 I e Su rvey Unit FSS Survey Packages for each Survey Area* Identify fin* Perform nE a I classifications 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 seco nd exe mption request 2 FIRST EXEMPTION REQUEST go- -- -bApril 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 1 2, 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 VolumeSimilar to First RequestConcentration Limits from First Request V Isotope Concentrations Based on Actual Shipments/DisposalDose Estimates for Second Request.Submittal Expected in Mid-2011 5 CONCLUSIONS Con mments/Questions 6