The Nuclear Metals, Inc. (NMI) facility is located on a 46.4-acre parcel at 2229 Main Street in Concord, Middlesex County, Massachusetts.  It was placed on the National Priorities List (NPL) by the United States Environmental Protection Agency (EPA) on June 14, 2001 (see http://www.epa.gov/superfund/sites/npl/f010614.htm).

Sites that require long-term cleanup are included on the National Priorities List (NPL).  The NPL is a published list of hazardous waste sites that are eligible for extensive, long-term cleanup actions under the Superfund Program. EPA has developed an assessment system called the Hazard Ranking System (HRS) to evaluate the dangers posed by hazardous waste sites.  Sites that score high enough on the HRS are eligible for the NPL.  Sites are scored according to the danger they may pose to public health or the environment.

Paragraph 6 of the AOC states that the objectives of the RI/FS are:

(i)         To determine the nature and extent of contamination and any threat to the public health, welfare, or the environment caused by the release or threatened release of hazardous substances, pollutants, or contaminants from the Site by conducting certain studies including a remedial investigation (RI); 

(ii)        To determine and evaluate alternatives for removal or remedial action (if any) to prevent, mitigate or otherwise respond to or remedy any release or threatened release of hazardous substances, pollutants, or contaminants from the Site by conducting a feasibility study (FS) and/or an engineering evaluation / cost analysis (EE/CA); 

(iii)        To reimburse certain response costs of the EPA; and, 

(iv)        To resolve the claims of the Respondents which have been or could have been asserted against the United States with respect to the performance of the Work and reimbursement of certain response costs as provided in this Order. 

The RI/FS work is being primarily funded by Federal Agencies that used NMI and/or Starmet to perform manufacturing operations.  A small portion of the cost was paid by the “Respondents to the AOC”, which include several companies that briefly owned or operated the facility.     

The Respondents have retained de maximis, inc. (de maximis) as their Project Coordinator to manage and direct all work under the AOC at the Site.  de maximis will also act as the General Contractor for the project and will hire other companies as necessary to perform the work. 

The intent of this website is to efficiently distribute information to the community of Concord, MA and other stakeholders.  Community participation continues to be an important component of the Nuclear Metals Superfund Site for several reasons.  First, an active Community Involvement Plan (CIP) (a requirement of the National Contingency Plan) has been developed in conjunction with the EPA.  More importantly, the CIP for the NMI Site reflects de maximis’ commitment to two-way communication that not only keeps the stakeholders informed about site progress, but also provides an opportunity for public feedback and input on site decisions.  More information regarding community involvement in the Superfund process can be viewed at the following: 

EPA New England Superfund Community Involvement  

The de maximis project team is made up of three firms: MACTEC, GeoSyntec Consultants, and Gradient Corporation.  

This site has been the subject of extensive prior remedial investigations and remedial work under other programs.  Some of the prior investigative reports are available within this website (Historic Reports).  Site information is also available at the Concord Free Library.

The database provided on this website is comprised of sample information and data collected during RI/FS investigation at the Nuclear Metals Superfund Site.  This information is currently being used to refine a  site conceptual model to write the Remedial Investigation/Feasibility Study (RI/FS) Reports.  As the RI/FS process is advanced, this website will be continuously updated to include final documents and sample information for public review and comment.