Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Safely Delivering the Department of Energy’s Vision for the East Tennessee Technology Park Mission Dynamic Radiological Inventory Control at the Tank W-1A Remediation Project Presented by: Gary Coleman Jr., M.S., Nuclear Safety Engineer Energy Facility Contractors Group (EFCOG) Safety Analysis Workshop May 4-10, 2012, Santa Fe, New Mexico WM

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Dynamic Radiological Inventory Control at the Tank W-1A Remediation Project Presented by Gary Coleman Jr. M.S., Staff Augmentation Nuclear Safety Engineering support to UCOR Oak Ridge via Energy Solutions Co-Authored by Jerry Gnoose, M.S., Staff Augmentation Waste Coordinator support to UCOR Oak Ridge via Energy Solutions Special Thanks to Jimmy Massey, UCOR Project Manager for the Tank W-1 A Remediation Project, and Karen Balo, UCOR Deployed Nuclear Safety Manager for the Tank W-1A Remediation Project

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Background information on Tank W-1A Tank W-1A is located within the main campus of the Oak Ridge National Laboratory (ORNL) Tank W-1A was installed in the 1950’s, and removed from service in 1986 While in service, Tank W-1A collected wastes from several high radiation analytical facilities at ORNL

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Background information on Tank W-1A During it’s operation, transfer lines to the tank leaked causing soil and groundwater contamination in the vicinity of the tank Remediation has been completed, and included removal of contaminated soil, the tank, and the concrete saddles and pad that supported the tank

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM The Tank W-1 A Location

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM The Tank W-1 A Facility

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Methodology Due to the close proximity of the project to other working facilities and personnel, there is a need for strict inventory control at the facility footprint The Tank W-1A Detailed Inventory Spreadsheet (TWDIS) was constructed to control and track dynamic inventory of Tank W-1A boxes of soil and waste staged within the Tank W-1A footprint

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Methodology ALARA concerns for workers on the site - footprint limited the number of filled containers to 24 A maximum of 6 boxes that had not been through confirmatory NDA were allowed to be on site

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Methodology The initial condition (IC) for inventory control was derived from the ALARA Design Plan, which formed the Specific Administrative Control (SAC) for inventory control Because of the high radiation levels from the soil, it was necessary to limit the number of containers on site to prevent unacceptable exposure at the project site boundary The Material at Risk (MAR) with the worst case 24 boxes were calculated to support the values used in the Safety Basis Hazard Evaluation (HE)

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Facility Footprint Processing Plan

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM B-25 Boxes Being Filled Inside the Enclosure

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Remote Camera View: ALARA at Work

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM B-25 Box Non-destructive Assay Station Onsite

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM B-25 Box Non-destructive Assay Station Onsite

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Radiological Inventory Juggling

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM The Tank W-1A Detailed Inventory Spreadsheet The TWDIS Spreadsheet was developed as an aid to control and track the inventory of processed boxes within the project boundary The spreadsheet was developed and controlled in accordance with company Information Technology (IT) requirements for level 2 “Safety Significant Software” The spreadsheet was accessed by the Waste Coordinator and two back-up designees. Others were given “Read-Only” access as needed

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM The Tank W-1A Detailed Inventory Spreadsheet Totals Empty/Vendor Site0 Empty/Container Staging Area8Section A Empty/Tank W-1A Site0Section B Full/Inside Weather Enclosure0Section C Full/Inside Service Annex0Section D Full/Awaiting NDA0Section E Full/Quarantine0 Full/NDA Complete0Section F Full/WDP Staging Area0Section G Full/Shipped to NNSS317Section H

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM The Tank W-1A Detailed Inventory Spreadsheet Empty Containers8 Total Full Containers317 # Containers Offsite317Sections G + H # Containers Onsite0 # Containers (C,D,E+Q)0</= 6 per SAC of DSA # Containers (F)0</=18 per SAC of DSA

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM The Tank W-1A Detailed Inventory Spreadsheet The TWDIS Spreadsheet contains warning notes for the user when the container count exceeds 80 % of the DSA limit The user has advanced warning to prevent inadvertent exceedance of the respective DSA limit There were several other warning parameters loaded into the spreadsheet, to manage inventories inside the Weather Enclosure, and outside on the facility footprint

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM The Tank Being Removed Inside the Enclosure

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Results Excavation operations began in September of 2011 and concluded in April of B-25 boxes were filled, surveyed, characterized, and shipped off-site There were no inventory control violations, as the operations crew worked very closely with the Waste Coordinator to communicate container movements in accordance with the DSA SAC’s

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM B-25 Boxes Being Loaded for Shipment

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Conclusion The TWDIS Spreadsheet is a cost-effective yet rigorous method for protecting the assumptions listed in the project DSA, and flowed into the operating procedures A search of the DOE Lessons Learned system revealed several examples of radiological inventory control violations that were related to lack of vigorous controls with regards to inventory movement and control Operations in Category 2 Nuclear Facilities should be held to the highest standards with regards to Conduct of Operations

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Conclusion The TWDIS spreadsheet is just one small example of the rigor needed to safely and effectively conclude clean-up operations at a Category 2 Nuclear Facility

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM References BJC/OR-3420 Removal Action for Tank W-1A at the Oak Ridge National Laboratory, Oak Ridge, Tennessee, Project and Facility ALARA Design Review Checklist, Bechtel Jacobs Company LLC, May 2010 DSA-OR-TW1A-0051 Rev.7, Documented Safety Analysis for the Tank W-1A (Corehole 8) Removal Action, URS/CH2M Oak Ridge (UCOR), February 2012

Safely Delivering DOE’s Vision for the East Tennessee Technology Park Mission WM Thank you for your attention! Any Questions? I can be contacted at :