Nuclear Metals Superfund Site

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Total Groundwater Processed

Through mid-June, 2019, approximately 1.35 million gallons of groundwater have been processed through the Permanent Groundwater Treatment System (Final Treatment System), which has been operational since April 2, 2019.

Previously, approximately 17 million gallons of groundwater were processed through the Temporary Groundwater Treatment System (TGTS) to maintain hydraulic capture of the plume. The TGTS operated from May 23, 2017 until the Final Treatment System was operational.

Groundwater NTCRA

  • Groundwater NTCRA Documents
  • Groundwater – Completed Activities
  • Groundwater – Upcoming Activities
  • GW NTCRA Progress Photos
  • Baseline Ecological Risk Assessment Documents

Updates

  • Latest News
  • Community Involvement & Events

Introduction

  • Site History
  • Contaminants of Concern
  • Relevant EPA Guidance

Building Demolition
Non-Time Critical
Removal Action (NTCRA)

  • NTCRA Progress
  • Activities – Completed
  • Activities – Upcoming
  • NTCRA Related Documents

Environmental Remediation
Remedial Investigation /
Feasibility Study (RI/FS)

  • Activities – Completed
  • Activities – Upcoming
  • RI/FS Related Documents
  • Interactive NMI Site Overview

Quick Links

  • U.S. EPA NMI Site information page
  • The Citizens Research & Environmental Watch (CREW) website
  • The Town of Concord Geographical Information System (GIS) website
  • 2229 Main Street website

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National Recommended Water Quality Criteria NOV2002

Freshwater Sediment Quality Assessment Guidelines JAN2003

ECO Update JAN1996

Assessment of Sediment Quality Volume II NOV1994

Assessment of Sediment Quality Volume I NOV1994

Adult Exposures to Lead in Soil (EPA-540-R-03-001)

Exposure from Radionuclides in Soil from EPA

Radioactive Carcinogenicity (HEAST User Guide)

Soils Screening Guidance for Radionuclides OCT2000

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Last updated on January 6, 2021

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