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Waste Site Cleanup & Reuse in New England
  Serving Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont & 9 Tribal Nations
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Map this site in Cleanups in My Community
     Waterbury,  Connecticut
     New Haven County
     Street Address: STORE AVENUE
     Zip Code: 06705

     EPA ID #: CT0002265551
     Site ID #: 0102953
     Site Aliases: Scovill Dump

     Site Responsibility: Federal

     Proposed Date 05/11/2000
     Final Date 07/27/2000

    Site Description
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    The Scovill Industrial Landfill Superfund Site (Site) is located north of Meriden Road in Waterbury, New Haven County, Connecticut. The Scovill Manufacturing Company used this area as a landfill from 1919 to the mid-1970s for disposal of ash, cinders, demolition debris, and other wastes generated by Scovill Manufacturing Company. By the mid-1990s, the Southern portion, which consists of approximately 18 acres, had been developed into residential and commercial properties.

    The northern portion of the Site is an undeveloped 6.8-acre parcel, referred to as the Calabrese parcel. This parcel was in the initial stages of development for a proposed elderly housing complex when industrial wastes were encountered during the excavation of soil for the concrete footings. The construction project was ordered to stop until the extent and degree of contamination was identified.

    Threats and Contaminants
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    The primary contaminants of concern (COCs) found at the developed 18 acre parcel consist mainly of metals and polycyclic aromatic hydrocarbons (PAHs). The primary COCs found at the undeveloped 6.8 acre area (i.e. Calabrese parcel) consist mainly of metals, PAHs, and some polychorinated biphenyls (PCBs). Most contaminated soils are currently located below pavement, buildings, and/or below vegetated soil, and the Calabrese parcel is fenced, however, there is a potential risk to human health if people become exposed to these contaminants.

    Cleanup Approach
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    A Record of Decision (ROD) was finalized in September 2013 which selected the following remedy: excavate down to four feet below ground surface at select areas where the COCs exceed federal and/or state action levels; backfill those areas with clean fill and replace the disturbed pavement, soil, and/or vegetation back to it's original condition; implement institutional controls (ICs) to prevent digging below the four feet below ground surface, to prevent taking excavated soil off-site without State approval; and to prevent commercial properties currently used as commercial use to convert to residential use without performing appropriate studies to demonstrate to EPA and CT Department of Energy and Environmental Protection (CT DEEP) that there would be no unacceptable risk to those residents. In addition, the remedy requires a pre-design study (PDI) to be performed at the Calabrese parcel, at the East Gate Plaza, and at the back of four contiguous residential homes located on Monroe Ave. to better define the extent of excavation for purposes of performing the remedial design. Further, the PDI requires that a sub-slab soil gas and in-door air study be performed at 119 Store Ave. to determine if there is a potential exposure pathway for vapor intrusion.

    Response Action Status
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    Initial Action In Spring of 1998, CT DEEP removed 2,300 tons of polychlorinated biphenyl (PCB) contaminated soil and an additional 18 capacitors were removed from the surface of the Calabrese parcel. The area was temporarily capped with a foot of top soil, hydro-seeded, and then four acres were fenced and posted.
    From Fall 2001 through summer 2013, EPA, in consultation with CT DEEP and CT Department of Public Health (CT DPH), performed: a Remedial Investigation (RI) to determine the nature and extent of contamination at the Site; a Human Health Risk Assessment (HHRA) to determine risks to human health; a Baseline Ecological Risk Assessment (BERA) to determine any risks to the environment; and a Feasibility Study (FS) to evaluate appropriate remedies for the Site.

    In the summer of 2013 EPA held a public meeting in Waterbury, CT to explain to the community the various studies and respective findings, the proposed remedy, and to answer questions. Immediately following the public meeting, EPA held a public hearing to allow the public to record their verbal comments for EPA's consideration in EPA's selection of the remedy. This process opened a 30 day comment period where the public could also provide written comments to be considered by EPA. The ROD was finalized in September 2013.

    Environmental Progress
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    At present, contaminated soils are covered with a building, paved road, parking lot, or grass. Direct contact is unlikely and therefore, in its current condition, the site does not present an immediate public health risk. Should the conditions change, exposure may become possible, hence it is important that digging, gardening or other activities that might expose landfill material not occur prior to implementing the remedy.

    Current Site Status
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    The PDI is underway. The sub-slab soil gas and indoor air study was performed from March 2014 through July 2014 and the results indicated that there may be a potential exposure pathway for vapor intrusion at 119 Store Ave. The property owner installed a vapor mitigation system in all of the first floor apartments. EPA and CT DEEP performed an inspection of the system and found it effective and protective of human health.

    As part of the PDI, EPA is also collecting additional soil samples to better define the extent of excavation that will take place during remedial action. This work is expected to be complete by December 2015.

    Site Photos
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    Links to Other Site Information
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    Disclaimer Instructions about PDF
    Maps and Photos:
    Site Location Map (122KB)  

    Newsletters & Press Releases:
    Press Releases about this project  
    A Proposed Superfund Site, June 19, 2000 (3.44MB)  
    Installing and Maintaining Service Utilities, May 1, 2001 (4.22MB)  
    What is happening at the Scovill Industrial Landfill Superfund Site?, June, 2002 (1.2MB)  
    Site Activity Update - Remedial Investigation -Phase 1 Begins September 2002, August, 2002 (.25MB)  
    Site Activity Update - Remedial Investigation Progress Report: Phase 1 Results, June 2003 (468KB)  
    Site Activity Update - Remedial Investigation Progress Report: Phase II Activities, April 2004 (152KB)  
    Site Activity Update - Remedial Investigation Progress Report: Phase III Activities, October 2008 (304KB)   
    Fact Sheet: February 01, 2011 (640 KB)  
    Save the Date Card - Public Meeting and Hearing for the Proposed Plan on August 6, 2013 (735 KB)   

    Federal Register Notices:
    Proposed NPL Listing  
    Final NPL Listing  

    Administrative Records:
    Administrative Record (AR) Index for the Record of Decision (ROD), October 2013 (571 KB)  
    Removal Action Administrative Record (AR) Index, March 1, 2015 (478 KB)  

    Reports and Studies:
    Planning for the Future: A Reuse Planning Report for the Calabrese Parcel, June 01, 2005 (6.65 MB)  
    Final Data Evaluation Report - Remedial Investigation, Feasibility Study, August 01, 2008 (6.75 MB)  
    Ground Water Use and Value Determination, September 29, 2010 (3.37 MB)  
    Baseline Ecological Risk Assessment (BERA), December 2010 (76.9 MB)  
    Powerpoint Presentation: Remedial Investigation Results, March 02, 2011 (6.15 MB)  
    Human Health Risk Assessment (HHRA), June 2011 (7.99 MB)  
    Supplemental Evaluation of Surface Water Protection Criteria, July 2012 (4.11 MB)  
    Remedial Investigation (RI) Report, May 2013 (56.6 MB)  
    Feasibility Study (FS), July 2013 (10.8 MB)  

    Decision Documents:
    View Records of Decision (RODS) on-line (EPA HQ)  
    Proposed Plan, July 2013 (14.1 MB)  
    Record of Decision (ROD), September 30, 2013 (14.3 MB)  

    Other Links:
    NPL Site Narrative at Listing:  
    Site Progress Profile  
    Revitalization Handbook, Addressing Liability Concerns  

    Site Repositories
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    OSRR Records and Information Center, 1st Floor, 5 Post Office Square, Suite 100 (HSC), Boston, MA 02109-3912 (617) 918-1440

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    EPA Remedial Project Manager: Almerinda Silva
    Address: US Environmental Protection Agency
    5 Post Office Square, Suite 100
    Mail Code OSRR07-4
    Boston, MA 02109-3912
    Phone #: 617-918-1246
    E-Mail Address: silva.almerinda@epa.gov

    EPA Community Involvement Coordinator: Kate Melanson
    Address: US Environmental Protection Agency
    5 Post Office Square, Suite 100
    Mail Code ORA01-1
    Boston, MA 02109-3912
    Phone #: 617-918-1491
    E-Mail Address: melanson.kate@epa.gov

    State Agency Contact: Sheila Gleason
    Address: Connecticut Department of Energy and Environmental Protection
    79 Elm Street
    Hartford, CT  06106-5127
    Phone #: (860) 424-3767
    E-Mail Address: sheila.gleason@ct.gov


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    Last updated on Wednesday, November 4th, 2015
    URL: http://www.epa.gov/region1/superfund/sites/scovill