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Latest NMI News Recent Documents

Acids, Oils, Caustics, and Depleted Uranium Shipped Off-Site for Disposal

By the end of 2015, all Depleted Uranium, corrosive mixed wastes, mixed waste organics, mixed waste metals, Sonedyne wastes, equipment oils and pit sludges previously stored on site during the NTCRA were all shipped off-site for disposal with EnergySolutions.

Four trucks staged for transport, December 2015.

Four trucks staged for transport, December 2015.

Loading acid overpack prior to shipment off-site.

Loading acid overpack prior to shipment off-site, December 2015.

Stage 1 of Building Demolition Complete

Stage 1 of the building demolition began this fall as part of the Phase 3 Construction Submittal and is now complete, including demolition of Butler buildings B1, B2, and B3, Tank House, pump house 2, acetone shed, hydrogen peroxide shed, gas cylinder shed, and exterior compaction dumpster. The remaining slabs are being placed under temporary cover for the winter. For more demolition photos, see NTCRA Progress.

Tankhouse demolition, November/December 2015

Tank house demolition, November 2015

Butler building B3 demolition, November 2015

Butler building B3 demolition, November 2015

EPA Announces Completed Record of Decision

EPA provided a news release 1OCT2015 announcing the completed Record of Decision (ROD) for the Nuclear Metals Site, Inc.  The ROD generally includes the following components:
•    Excavation and off-site disposal of approximately 82,500 cubic yards of contaminated materials.
•    In-Situ stabilization of depleted uranium contaminated soils in the Holding Basin using apatite injection.
•    Extraction and ex-situ treatment of groundwater for volatile organic compounds (VOCs) and 1,4-dioxane.
•    In-situ treatment of depleted uranium and natural uranium in groundwater.
•    Long-term monitoring to monitor the effectiveness of in- and ex-situ treatment.
•    Institutional Controls to prevent disturbance of the Holding Basin area, prevent the use of Site groundwater, and address potential vapor intrusion risks.

Community Involvement  Recent Documents

CREW and 2229 Main Street met with Agencies on site on 17 March 2015

Public groups and de maximis met with the Agencies on 17 MAR 2015 on site to discuss the NTCRA status and schedule for building demolition as well as the planning for the remedy for 1, 4-dioxane in groundwater. The 2229 Main Street Committee provided an update to the Town’s approach to potentially taking the Site.

Public Meeting Presentation 12 NOV 2014

USEPA presented the Proposed Remedial Action Plan for the NMI Superfund Site last night at 6:30 pm  at the Concord Town Hall Meeting Room at 22 Monument Square, Concord, MA. To download a copy of the presentation, click here.

Last updated on January 7, 2016