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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Groundwater NTCRA Documents

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GW NTCRA Demonstration of Compliance Report DEC2017

1 file(s) 6.69 MB
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GW NTCRA Demonstration of Compliance Report JUN2018

1 file(s) 6.90 MB
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GW NTCRA Demonstration of Compliance Report SEP2018

1 file(s) 4.19 MB
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GW NTCRA 100 RD Treatment System Approved 12DEC18

1 file(s) 27.18 MB
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GW NTCRA 100 Removal Design for Temporary GW Treatment System Approved 01JUN17

1 file(s) 19.99 MB
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GW NTCRA 100 Removal Design Water Treatment Building Approved 11NOV18

1 file(s) 11.58 MB
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GW NTCRA RDWP

1 file(s) 39.96 MB
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Appendix A Action Memo GW NCTRA AOC

1 file(s) 338.38 KB
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Appendix B Site Map GW NTCRA AOC

1 file(s) 2.54 MB
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Construction Equipment Guide NMI Article 22FEB17

1 file(s) 728.42 KB
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Final Signed GW NTCRA AOC 07JUL2016

1 file(s) 11.82 MB
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NMI Groundwater NTCRA GW Modeling WP 13JUN2016

1 file(s) 1.63 MB
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NMI GW NTCRA PDI 03APR2017

1 file(s) 16.01 MB
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GW NTCRA Extraction Well Installation and Pump Test WP 21JUN2016

1 file(s) 25.58 MB
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NMI GW NTCRA SOW Final Appendix C 27MAY2016

1 file(s) 126.18 KB
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GW NTCRA Trust Agreement AOC Appendix D

1 file(s) 88.00 KB
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Last updated on December 23, 2020

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