Z S I O N OLUTIONS LLC An Energy Solutions Company Zion Status - - PowerPoint PPT Presentation

N OLUTIONS O I

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An EnergySolutions Company

Zion Status Update-EPRI D&D Conference

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Nick Williams – VP Rad/Environmental

June 19, 2017

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Zion Decommissioning Summary

• Two 1100 MWe 4 Loop PWRs
• Unit 1 Start-up 1973
• Unit 2 Start-up 1974
• Shut down Feb 1998
• Safe Store until Sept. 2010
• EnergySolutions/ZionSolutions took over Part 50 License from

Exelon in 2010

• Original target completion 2020
• Current target completion 2018
• Fixed price project based on Decommissioning Fund

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Fuel Transfer Operations

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61 pf 61 Canisters processed and transported to ISFSI 52 Week Campaign 18.1 Person Rem Est. 16.3 Person Rem Goal 11.1 Person Rem Actual

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Zion’s First Fuel Canister In Processing (Continued)

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First Fully Loaded Fuel Cask In Transport to Zion’s ISFSI

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Reactor Vessel Internals

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Reactor Vessel Internals-GTCC

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GTCC Summary

• Approx. 94,000 lbs. of GTCC Waste
• Approx. 460,000 Curies
• Approx. 220,000 Curies of Co-60
• Maximum dose rates 13,000 R/hr (130 Sv/hr)
• Multiple lifts >200,000 lbs
• Unit 2:

July 15 to October 9, 2014

• Unit 1:

January 9 to March 6, 2015

• Used Experienced FTO personnel
• 4.1 Person Rem Est per Unit.
• Unit 2: 2.6 Person Rem; Unit 1: 3.6 Person Rem
• Zero Injuries

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Prepping Unit 2 ‘Charlie’ Steam Generator

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All Four Unit 2 SGs Arriving at EnergySolutions-Clive after Four Days in Transit

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Unit 2 Reactor Vessel Segment Removal

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Crib House Basement Source Term Surveys-FSS

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Lowering ISOCS Unit

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Crib House Demolition-Then and Now

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Increased Use or Large Equipment

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Turbine Building Interior Demo

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TB Demo

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Turbine Building Internal Demo Ramp

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Clean Concrete-South Rail Area-ISFSI

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Working/Shipping and the Environment

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All Exiting Vehicles Pass Thru Vehicle Monitor

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Cask Shipment Preps

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Waste Operations

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• Class A waste disposal – 109,832,022 pounds shipped to date
• Class B&C waste disposal – 37 of 37 casks shipped to date

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Enclosure Construction

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Unit 2 Enclosure-Oct 2016

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Class A by Rail-U2 Enclosure

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Rail Car Loading Adjacent to Unit 2

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Start of SFP Demo

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SFB March 2017

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Spent Fuel Building Removed

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Containment Interior Demo/Vent

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Aux-TB ‘G’ Wall-TB Backfilled

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Start of Aux Bldg Demo

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Aux Bldg Demo April 2017

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Remaining Aux Building-May 2017

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Buried Pipe Removal and Survey

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Groundwater-Potentiometric Surface Contours

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Zion Dose Model-Resident Farmer

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Groundwater Flow Groundwater Surface Below Grade Structures Well Clean Concrete/ Sand Fill Sheet Pile Wall Lake Michigan

Inhalation of Dust Particulates External Exposure to Radiation Consumption of Beef and Milk Consumption of Vegetables/Fruits

3’ Clean Cover

Consumption of Well Water Soil Ingestion

Well

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LTP Ch. 5: Final Radiation Survey Plan

• Comprehensive Sampling and Measurements

will be performed to demonstrate that Site meets NRC unrestricted release criteria (NUREG 1575- MARSSIM)

• Soil: Scan/static measurements, volumetric

sampling

• Concrete: Insitu Gamma Spectroscopy
• Buried Pipe, Embedded Pipe and Penetrations:

pipe crawlers, sediment sampling and/or other methods

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Site FSS Survey Units

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Environmental Department EnergySolutions Environmental

– Compliance – Stewardship

Endangered Blanding’s Turtle Rescued at Zion

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Biodiversity Protection

• The Illinois Beach State Park located on the North

and South side of the Zion Nuclear Station provides habitat to various wildlife.

• Some Examples of Wildlife Protection at

Zion Nuclear Station include:

– Canada Goose and Goslings – Blanding’s Turtle

• Inspections and Notifications

– Snakes

• Fox Snakes
• Garter Snakes

Stewardship

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Rescues

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Future Site Owner-Threatened Common Tern

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Remaining Zion Timeline

• Submit LTP Rev 1 June 2017
• Submit Illinois Site Remed Program Reports June 2017
• Complete Aux Bldg and Containment Demo Q4 2017
• Illinois SRP (Non-Rad site closure) Approval Q4 2017
• Complete Structural FSS Q4 2017
• Complete Land Area FSS Q2 2018
• Submit FSS Final Report to NRC Q2 2018
• Site Restoration Q2 2018
• NRC Approval of FSS Final Report Q4 2018

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