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United States Environmental Protection Agency
Waste Site Cleanup & Reuse in New England
  Serving Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont & 9 Tribal Nations
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Cheshire,  Connecticut
New Haven County
Street Address: 350 Knotter Drive
Zip Code: 06410

EPA ID #: CTD980916779
Site ID #:
Site Alias:
Environmental Indicators Status:

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The Arch facility is located at 350 Knotter Drive in the Cheshire Industrial Park in Cheshire, Connecticut (Figure 1). The facility is bordered on three sides by other industrial/commercial properties within the Cheshire Industrial Park and Knotter Drive and on the fourth side by the Ten Mile River.

The facility has been used by Arch/Olin since Olin acquired the facility in 1983. The facility was previously occupied by Siemens, a medical equipment manufacturing company, from its construction in 1975 to 1983. Prior to 1975, the facility and surrounding area was under agricultural use. Arch/Olin has used the facility as a research and development (R&D) laboratory facility throughout their occupation of the Site. R&D work conducted by Arch/Olin concentrated on swimming pool chemicals, surfactants, liquid toners, urethane compounds, and biocide compounds. Additional project-specific specialty chemicals (e.g., propellants for explosives) including hydroxyl ammonia nitrate (HAN), a liquid propellant, and hydrazine, a rocket fuel, were used in very small quantities in the R & D laboratory at the facility. Arch formerly operated an on-site hazardous waste storage area for greater than 90-day storage of hazardous wastes generated on-site. This storage area is no longer in use and its clean closure was approved by Connecticut Department of Energy and Environmental Protection (CT DEEP) in 2005. The facility is subject to Resource Conservation and Recovery Act (RCRA) Corrective Action and Connecticut Property Transfer Act requirements. The purpose of these requirements is to ensure that any releases of hazardous wastes or hazardous constituents have been investigated and remediated to levels protective of human health and the environment.

Arch/Olin has investigated all potential releases of hazardous waste and/or hazardous constituents from its facility. Results of the investigation show that levels of hazardous waste and/or hazardous constituents comply with the Connecticut Remediation Standard Regulations, Regulations of Connecticut State Agencies Sections 22a-133k-1 through 22a-133k-3.

Current Status
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The Connecticut Department of Energy and Environmental Protection (“DEEP”) is requesting public comment on a tentative determination at the facility that:

    all RCRA Corrective Action and Connecticut Property Transfer Act requirements have been met;
    no further remedial action is needed; and
    as the facility has ceased operating and clean closed its hazardous waste storage area for which a RCRA permit application was submitted, no permit is necessary and the permit application can be terminated.

DEEP invites all interested persons to express their views on this proposal and will consider all public comments provided before finalizing this tentative determination. DEEP will accept written comments on the proposal from July 7 to August 20, 2010.

To comment formally: Please send written comments, post marked no later than August 20, 2010, to:
      Sandy Brunelli
      Remediation Division, Bureau of Water Protection and Land Reuse
      Connecticut Department of Energy and Environmental Protection
      79 Elm Street
      Hartford, CT 06106-5127
      e-mail: Sandy.Brunelli@ct.gov
      fax: 860-424-4067

For more information, please:
    Follow the links from this site to the Arch Chemical Facility Fact Sheet;
    Contact any of the individuals listed below under "Contacts;"
    Join us at a public information meeting on 7/28/2010 at 7:00 p.m. at the Cheshire Public Library located at 104 Main Street, Cheshire, CT 06410
    Review files available at sites listed below under "Public Record Locations"

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Links to Other Information
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Disclaimer Instructions about PDF

Environmental Indicator (EI) Determination, Migration of Contaminated Groundwater Under Control, June 19, 2009 (540 KB)  
Environmental Indicator (EI) Determination, Current Human Exposures Under Control, June 30, 2010 (415 KB)  
Administrative Record Index, Remedy Decision, July 1, 2010 (102 KB)  
Statement of Basis, Termination of Interim Status, July 7, 2010 (325 KB)  

Public Record Locations
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Cheshire Public Library
104 Main Street, Cheshire, CT 06410

Library Hours:
Monday-Thursday 9:30 a.m. - 9 p.m.
Friday-Saturday 9:30 a.m. - 5 p.m.
Closed Saturdays July through Labor Day

US EPA New England Records Center
5 Post Office Sq., Boston, MA 02109-3912

Records Center Hours:
Monday - Friday 9:00 a.m. - 5:00 p.m.

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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Marilyn St. Fleur
EPA Project Manager
Address: EPA-New England, Region 1
5 Post Office Sq. Suite 100
Mail Code OSRR07-3
Boston, MA 02109-3912
Phone #:617-918-1617
E-Mail Address:stfleur.marilyn@epa.gov

Sandy Brunelli
State Contact
Address:CT Dept. of Energy and Environmental Protection
79 Elm Street
Hartford, CT 06106-5127
Phone #:860-424-3300
E-Mail Address:Sandy.Brunelli@ct.gov

John R. Lesky
Facility Contact
Address:PO Box 596, Cheshire, CT 06410
Phone #:203-271-4076
E-Mail Address:


Serving Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont, & 9 Tribal Nations
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Last updated on Friday, November 4th, 2011
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