- Continued Building Stabilization activities, including snow removal in response to numerous winter weather storms, completion of combustible wall removal in Buildings A except for laboratories, initiated removal of remaining combustible walls in labs, completed removal of piping/conduit from Building C and began removal in Building B, completed removal of vacuum lines in Buildings B and most of E, completed cleaning and removal of lab benches and fume hoods from Building A labs.
- Completed response to DU fire incident: filled in pits in HF area, segregated and neutralized co-mingled waste piles and supersacks, transferred acids from day tanks to portable poly containers, and neutralized HF area and equipment.
- Concord Fire Department responded to a fire alarm on 1Feb14. Alarm was associated with a sensitive low-flow sensor in Building C, which was corrected by resetting the system. It was determined that the sensor trips with water supply pressure variations in the Concord system and the alarm may continue to be triggered.
- Continued Building Stabilization activities, including completing assembly of rooftop walkways, completing processing and sizing of the crucible router in Building D, continued removal of piping/conduit from Buildings C and D, completed the removal of combustible walls in Building B and initiated removal of combustible walls in Building A, and completed removal of vacuum lines in Buildings A, C, and D and began removal of lines in Buildings B and E.
- Completed construction of Building E Employee Contamination Reduction Zone (CRZ).
- Completed implementation of the Tank House Work Plan.
- Continued the Depleted Uranium Metal Exterior Site Characterization Survey. Remaining activities include the screening of storm water catch basins and is weather dependent.
- Received Agency comments on Phase 2 Construction submittal on 9 Jan 2014.
- A small depleted uranium fire occurred during activities related to the High Hazard Materials Removal and Demolition work on 16 Jan 2014. Submitted a letter report to the Agencies on 31 Jan 2014 documenting the event and response.
- Received Agency approval on 6 Jan 2014 for Filling and Capping of Slab Penetrations letter request.
- Building stabilization activities continued, including processing and sizing disassembled equipment; disposal of Bar Straightener from Building D; removal of lights and ballasts, piping and conduit in Buildings C and D; continued encapsulation of metal powders and shavings; completed cleaning and disassembling of “skull furnace” in Building D; commenced cleaning and disassembling of crucible router in Building D;
- Submitted response to comments and revised High Hazard Materials Removal and Demolition Plan to Agencies on 2DEC13; received Agency approval on 2 DEC 13. Commenced work pursuant to the High Hazard Work Materials Removal and Demolition Plan following approval.
- Continued the Depleted Uranium Metal Exterior Site Characterization Survey.
- Submitted letter request to Concord Fire Department for Fire Alarm System Modification on 13 DEC 13.
- Submitted letter request for Filling and Capping of Slab Penetrations on 12 NOV 13; received additional comments on 30 DEC 13.
- Continued packaging and loading of intermodal containers. Sixteen containers were shipped during the week of 9DEC13. Total shipments by year-end were 154 (152 Containers and 2 Tankers) consisting of 2,956,760 pounds.
- Received Agency comments on High Hazard Work Materials Removal and Demolition Plan on November 25, 2013.
- Submitted letter request for Filling and Capping of Slab Penetrations on November 12, 2013; received Agency comments on November 25, 2013.
- Transported 9,205 gallons of liquid to US Ecology from the Tank House activities on November 22, 2013.
- Concord Public Works responded and repaired a water leak within Pump House #1 that caused potable water to migrate to Route 62 (North Main Street) on November 25, 2013.
- Continued packaging and loading of intermodal containers.
- Continued Building Stabilization activities, including demolition of debris and equipment in Buildings C, D, and E; removal of lights and ballasts in Buildings C and D; completion of removal of debris and equipment from trenches in Buildings C and D; commenced encapsulation of metal powders and shavings.
- Removed approximately 450 gallons of sludge from the North and South tanks in the Tank House and transferred the sludge to drums in preparation for encapsulation. Commenced encapsulation of sludge but halted activities on November 12, 2013 due to freezing conditions with the Tank House. Activities will resume upon installation of a temporary heater.
- Continued implementation of Depleted Uranium Metal Exterior Site Characterization Survey.
- Disassembled four oversized Okuma units in Building D. Disassembled and removed sludges/yellow cake from furnaces, ovens, Building B Band Saw and oven base found in Butler B-3. Removed remaining REP machine base and utilities of eastern wall of Building C. Removed all Gantry cranes from former machine shop. Processed and sized for disposal the bar straightener in Building D.
- Received Agency approval on the Tank House Work Plan on October 1, 2013. Work commenced under the plan, including draining of the Building E waste water tanks and Tank House Tanks. Approximately 5,650 gallons were transferred to the frac-tank.
- Continued Transportation and Disposal off site through October 4, 2013. Total shipped through October was 136 containers with 2,483,460 pounds (1,241 tons). Off-site shipment and disposal will resume in December 2013.
- Initiated implementation of the Depleted Uranium Metal Exterior Site Characterization Survey.
- Initiated the encapsulation of metal shavings.
- Continued packaging and loading of intermodal containers.
- Continued Building Stabilization activities, including demolition of debris and equipment in Buildings C, D, and E; processing of Butler B-3 debris and materials; removal of vacuum lines in Building D; removal of lights and ballasts in Buildings C and D; completion of metal powders and shavings screening with XRF; removal of combustible walls in Building D and C; initiated removal of debris and equipment from trenches in Buildings C and D.
- Submitted the High Hazard Work Plan for Agency review on September 5, 2013.
- Provided responses to comments on the Tank House Work Plan on September 23 and 30, 2013.
- Received Agency verbal approval to proceed on the Metals Solidification SOP on September 16, 2013.
- Received Agency approval on the Depleted Uranium Metal Exterior Site Characterization Survey Plan on September 25, 2013.
- Submitted the Phase 2 Construction Report to the Agencies on September 27, 2013.
- Continued packaging and loading of intermodal containers for off-site waste shipment.Completed the screening of metal powders and shavings with the XRF.
- Continued demolition of debris and equipment in Building C, D, and E.
- Commenced processing of Butler B-3 debris and materials in preparation of transportation and disposal.
- Continued Building Stabilization activities: Commenced removal of vacuum lines and process duct work from machine shop and Building C Mezzanine. Commenced removal of vacuum lines in Building D. Removed QC office in Building E and removed the piping and conduit from the foundry areas. Also initiated light and ballast removal in Buildings C and D along with removal of the electrical switch gear from the back courtyard.
- Continued transportation and disposal of intermodal containers from 6AUG13 through 15AUG 13 with a total amount of waste shipped off-site of 2, 210, 560 pounds (1,105.28 tons) to date.
- Identified discrete pieces of depleted uranium (DU) metal in the upper two inches of soil covered by vegetation outside the buildings near the former employee entrance during routine radiological monitoring on 3AUG13. Submitted a plan for a DU metal site characterization survey on 27AUG13 to evaluate the soil, asphalt and concrete paved areas around the site not identified for remediation in the Feasibility Study.
- Continued Building Stabilization activities including disassembling and demolishing equipment in Building C and D foundry areas and partial wall demotion of non-structural combustible walls in Building C. Also moved and staged all debris and materials in Butler Building B-3 into Building D for processing prior to transportation and disposal.
- Continued Building Stabilization activities, including packaging and loading of intermodal containers, removal of oils and fluids from machinery, demolition of debris and equipment in Buildings C, D, and E to assemble higher activity packages to screen with the Radionuclide Detector (RID) unit.
- Received Agency comments on 17JUL13 on the Tank House Plan and Standard Operating Procedure for Stabilization of Metal Powders and Turnings identified in the Phase 1 Construction Submittal.
- Paused transportation and disposal of intermodal containers from 12JUL13 until 5AUG13 to allow work crews to stockpile additional waste streams for shipment.
- Through 31JUL13, one hundred and four 32-yard intermodal containers were shipped from the Site with a total weight of 1,797,680 pounds (898.84 tons).
- Held Site walk on 24JUN13 with Agencies, Concord Fire Department, Public Groups, de maximis, and representatives of Respondents to review on-going work activities.
- Continued Building Stabilization activities, including packaging and loading of intermodal containers, removal of oils and fluids from machinery, demolition of debris and equipment in Buildings C, D, and E, wall removal between D-116 and 117 for efficient loading, and consolidation of usable chemicals and machine oils.
- Submitted revised USEI Transportation Plan on 13JUN13.
- Submitted the Tank House Plan and Standard Operating Procedure for Stabilization of Metal Powders and Turnings identified in the Phase 1 Construction Submittal to the Agencies on 19JUN13.
- Completed shipment of eighty 32-yard intermodal containers, total weight of approximately 681 tons, for off-site disposal through June 31, 2013.
- Commenced transportation on May 6, 2013, of intermodal containers to US Ecology Inc. for disposal.
- Waste total shipped for the month of May included forty-eight intermodal containers and 826,080 lbs.
- Completed labeling of Asbestos Containing Materials (ACM) throughout buildings.
- Continued the removal of oils and fluids from machinery.
- Continued packaging of loose debris in Buildings C, D, and E.
- Continued disassembling and packaging of accessible equipment in Buildings C, D, and E.
- Completed paving activities as part of the Site Management and Security Plan, Addendum #1.
- Received eight intermodal containers and commenced loading in preparation for shipping in May.
- Continued building stabilization activities, including commencement of oil and fluid removal from machinery, packing of loose debris in Buildings C, D, and E, disassembly of equipment in Building C and E, and removal of remaining equipment and conduit on wall in Building D, room D117.
- Continued Site Management and Security Plan Addendum 1 Activities, including repurposing the RI/FS trailer for scale house, relocation of the fence along northwest corner of property around Truck scale, completed electrical installation in scale house, removed and relocated light poles, completed regrading of disturbed areas in preparation for paving, and provided improvements in parking areas for better truck traffic flow.
- Continued Health and Safety activities, including relocation of the contamination reduction zone in Building C.
- Submitted RCRA Subtitle C Site Identification and Revised Notification of Hazardous Waste Activity on April 22, 2013.
- Submitted NTCRA Transportation and Disposal Cost Analysis on April 22, 2013.
- Received EPA approval of the Phase 1 Construction Submittal on March 27, 2013.
- Removal of northern section of partition wall in Building D, which included removal of the pre-fabricated hallway, the fire suppression system, and the cinder block wall. In addition, relocated the fire alarm conduit and re-energized the garage door motor. Constructed a temporary wall for a contamination reduction zone (CRZ).
- Completed grading around southern portion of buildings. Placed top soil stockpile immediately south of Butler Building B-2.
- Packaged loose debris in Building E. Also disassembled equipment in Building E to assemble higher activity packages to screen with the Radionuclide Detector unit.
- Completed radiological screening of laboratory package chemicals in preparation for off-site disposal.
- Responded to Agency comments on the Phase 1 Construction Submittal comments on February 8, 2013.
- Began excavation for the truck scale foundation.
- Performed snow removal for February 10, 2013 snow event of 24 inches. Work crews on-site over the subsequent weekend to maintain access roads.
- Received Agency comments on the response to comments on the Phase 1 Construction and revised Phase 1 Construction submittals.
- EPA approves Addendum No. 1 to Site Management and Security Plan for the NMI NTCRA on December 20, 2012.
- Continued Building Stabilization activities: installed temporary propane heater in tank house, had Concord Fire Department on site to perform Fire Suppression Loop Pressure Test, and cleared snow following December 17, 2012 snow event.
- Update of NTCRA activities was provided to the Agencies and Concord Fire Department on November 7, 2012.
- On September 10, 2012 de maximis received conditional approval of the Removal Action Work Plans and Cylinder Removal plan pending compliance with final EPA comments.
- On August 27, 2012, de maximis participated in a Site walk with Agencies and Concord Fire Department.
- de maximis removed Building A HVAC Blower motor unit and patched hole in roof above south stairway on August 15, 2012.
- Response to Comments, Revised Documents and redlined August 13, 2012.
- de maximis submitted the Site Management & Security Plan Addendum #1 which summarizes exterior Site improvements for NTCRA Activities on August 14, 2012.
- Building Stabilization activities performed. Materials were processed and packaged in accordance with the Packaging of Office Contents & Combustible Materials Procedures in the following areas: 1). Building A First Floor- Completed. 2). Building B First Floor- Completed. 3). Building E Office Mezzanine- Completed.
- de maximis received additional comments from the Agencies on Removal Action Work Plan (RAWP) and attachments on July 30, 2012.
- de maximis submitted the Phase I Construction Submittal on July 27, 2012.
- de maximis submitted Response to Comments (RTC) on Removal Action Work Plan (RAWP) and attachments on July 2, 2012.
- Materials were processed and packaged in accordance with the Packaging of Office Contents & Combustible Materials Procedures in the following areas: 1). Building A First Floor- In Progress. 2). Building A Second Floor Office Areas- Completed during July 2012. 3). Building B First Floor- In progress. 4). Building B Second Floor Office Areas- Completed during July 2012. 5). Building C Mezzanine- Completed during July 2012.
- On June 6, EPA provides approval of Packaging Office Contents and Combustible Materials Procedures.
- During June 2012, de maximis completed execution of Removal Action Work Plan (RAWP) Appendix G- Electrical Termination Plan.
- On May 8, concord Light terminated existing power service to the property/buildings. EPA provides approval of the Electrical Termination Plan and Natural Gas Piping Purge Plan.
- EPA provides comments on the NTCRA Work Plans. de maximis completed installation of Temporary Power Service.
- de maximis starts preparation of “Construction Submittals” the detailed work plans that will address specifically how building contents will be removed for off-site
- de maximis continues inventory of building contents and conducts structural analysis of building roofs.
- NTCRA Work Plans submitted on January 18. de maximis continues to implement measures to reduce risk, and starts comprehensive inventory of building contents.
- EPA approves Interim NTCRA Work Plans on December 19. de maximis continues measures to reduce risk and implements temporary heating of buildings to maintain fire sprinklers and minimize snow load.
- Starmet abandons site on November 2, de maximis takes over responsibility for site security and maintenance. Interim NTCRA Work Plans submitted on November 5. de maximis implements measures to secure buildings and reduce risk. MADPH-RCP terminates Starmet’s licenses to possess radioactive materials on November 8.
- NTCRA Trust funded. Respondents name de maximis, inc. as General Contractor for NTCRA work. de maximis, inc. starts NTCRA planning and identifies subcontractors to assist with NTCRA work.
- Administrative Settlement Agreement and Order on Consent and appendices (together, the Settlement Agreement) for Non-Time-Critical Removal Action (NTCRA) became effective August 9. Respondents to Settlement Agreement name Bruce Thompson as Project Coordinator for NTCRA work.
- Proposed Plan Public Meeting for “Engineering Evaluation and Cost Analysis (EE/CA) Disposition of Structures and Contents”.
- On July 2007:Revised Draft “Engineering Evaluation and Cost Analysis (EE/CA) Disposition of Structures and Contents”.
- EPA’s National Remedy Review Board reviewed the EE/CA’s preliminary options and costs for the performance of a Non-Time Critical Removal Action (NTCRA) and provided comments to EPA Region.
- Submitted Draft Engineering Evaluation and Cost Analysis (EE/CA) for the disposition of site structures and building contents for agency review.
- EPA issued Notice to Proceed for an EE/CA for the site buildings and contents.
Last updated on March 15, 2014