ABB Inc., Windsor - Separation of 5.013 Acres From Main Site

Notice of Tentative Determination that Resource Conservation and Recovery Act Corrective Action obligations are complete without controls for one portion of ABB Inc. and separation of 5.013 acres from the Main Site at ABB Inc. [aka Combustion Engineering (CE), Windsor] 2000 Day Hill Rd, Windsor, CT

The Department of Energy and Environmental Protection (DEEP) hereby gives notice that a tentative determination proposing Corrective Action obligations under the Hazardous and Solid Waste Amendments of the Resource Conservation and Recovery Act (RCRA) are complete without controls for the Fifth Portion (5.103 acres) owned by ABB Inc. (aka Combustion Engineering (CE)) located at 2000 Day Hill Road in Windsor (Main Site); and to separate the 300 Groton Road parcel of land referred to as the Fifth Portion from the Main Site.

Based on the environmental investigation and remediation conducted at the site, the Department has determined that remediation is complete for the Fifth Portion and neither an Operating nor a Post-Closure Permit is required. This means that the Fifth Portion will no longer be part of the property subject to the requirements of a Stewardship Permit (Permit No. DEEP/REM/SP/2021-7133) issued to ABB Inc.

A VIRTUAL PUBLIC MEETING will be held as follows:

Date: July 16, 2026
Time: The Public Meeting will start at 6:00 p.m.
Location: https://ctdeep.zoom.us/meeting/register/agcKWshHQ8yf4Aa797qVfA

Applicant’s Name / Address:    ABB Inc.
                                                    2000 Day Hill Road
                  Windsor CT, 06095

Applicant’s Contact Person:   Zachery Pedersen, Environmental Project Manager of ABB Inc
                                                   860-670-6067
                                                   zachery.m.pedersen@us.abb.com

Virtual Public Meeting

DEEP will host a Virtual Public meeting on July 16, 2026, starting at 6:00 p.m., and ending within one (1) hour if all questions are addressed. During the meeting the public will have an opportunity to make comments and ask questions.

Click to register to attend remotely. After registering, you will receive a confirmation email containing information about joining the meeting.

How to Review the Stewardship Permit and the Draft Statement of Basis

This Stewardship Permit and the Draft Statement of Basis may be accessed:

Through the Department’s website: Proposed Individual Permits;
Contacting Jade Barber by email at jade.barber@ct.gov or by phone at (860) 424-3341.

Requests for Public Comment

The Commissioner will not make a final decision regarding this proposed “complete without controls” determination and separation of the Fifth Portion until the public comment period has closed and all received comments have been evaluated and addressed.

All interested persons are invited to express their views on the tentative determination concerning this draft Statement of Basis. Verbal comments provided during the Public Meeting will be considered.

Written comments on the draft Statement of Basis must be submitted no later than forty-five (45) days after the publication of this notice. Written comments should be directed to:

Jade Barber, Environmental Analyst
By email to: jade.barber@ct.govwith a copy to DEEP.REMStewardship@ct.gov

or if email is not possible, by US Postal Service mail to:
Jade Barber, Environmental Analyst, Remediation Division
Bureau of Water Protection and Land Reuse, 2nd Floor
CT Department of Energy and Environmental Protection
79 Elm Street
Hartford CT 06106-5127

The State of Connecticut has authorization to administer the RCRA hazardous waste program in lieu of the federal government. Therefore, hazardous waste facilities in Connecticut, including those that have stopped operations and are undergoing environmental cleanup, are subject to and must comply with all applicable requirements found in Sections 22a-449(c)-100 through 119 and 22a-449(c)-11 of RCSA and Section 22a-449(c) of the CGS.

The Connecticut Department of Energy and Environmental Protection is an Affirmative Action/Equal Opportunity Employer that is committed to complying with the requirements of the Americans with Disabilities Act. If you are seeking a communication aid or service, have limited proficiency in English, wish to file an ADA or Title VI discrimination complaint, or require some other accommodation, including equipment to facilitate virtual participation, please contact the DEEP Office of Diversity and Equity at 860-418-5910 or by email at deep.accommodations@ct.gov Any person needing an accommodation for hearing impairment may call the State of Connecticut relay number - 711. To facilitate efforts to provide an accommodation, please request all accommodations as soon as possible following notice of any agency hearing, meeting, program or event.

/s/Raymond Frigon, Director
Remediation Division
Bureau of Water Planning and Land Reuse

Published in the Hartford Courant (Zone 6) on June 15, 2026