A Paradigm Shift in Connecticut Environmental Regulations
Effective March 1, 2026, the State of Connecticut will institute the new Release Based Cleanup Program (RBCP); a significant programmatic shift in how the State addresses remediation. GEODesign is positioned to assist owners, buyers, developers and lenders in understanding and navigating this new regulatory landscape.
On the same date, the Connecticut Department of Energy & Environmental Protection (DEEP) will sunset the much-maligned Property Transfer Program (PTP) or “Transfer Act”. Since 1985, entry into the PTP and site-wide environmental investigations (and potential remediation) has been required at the time of purchase or transfer of particular properties. Since the PTP involves much uncertainty over timing and costs to meet obligations and exit the program, many investors and developers feel that the PTP is responsible for ruining many real estate deals and stagnating economic development in Connecticut .
Under the new RBCP and the incorporated Release Based Cleanup Regulations (RBCRs), a release is “discovered” when a person who is “creating” or “maintaining” the release obtains knowledge of its existence. Releases are broadly categorized into existing releases (including historic contamination) and emergent reportable releases (new releases). Release discovery will require reporting to DEEP under specific timelines ranging from 24 hours to 365 days.
Pathways through the program will depend on several factors but the basic framework in the first year will include Release Discovery – Reporting – Investigation – Characterization – Immediate Action (where an immediate threat to human health or the environment is present). Generally, a reported release must be remediated within one year. If remediation is incomplete after one year, the site will be assigned by DEEP to a Tier category based on the level of risk. Tiers will require either DEEP or Licensed Environmental Professional (LEP) oversight and will culminate with a Release Remediation Closure Report which is required within a prescribed period, depending on Tier assignment.
Regulatory changes under the RBCRs which potentially benefit acquisition and development include:
- Site-wide environmental investigations or cleanup obligations will no longer be mandated simply by property transfer. No longer will a buyer/owner be required to “prove the negative”.
- The decision to evaluate environmental conditions as part of business due diligence will be market-driven and based in part on business risk tolerance between buyer, seller and lender. More emphasis will be placed on pre-closing due diligence.
- Reviewing past environmental data alone will not constitute discovery of a release (the “File Cabinet” exemption).
- DEEP claims that the RBCP aims to reduce cost and complexity of each required cleanup (despite expanding the universe of sites requiring cleanup).
- There are clear timelines for reporting and cleanup. All sites will be managed on an equal basis. Cleanup is incentivized for completion within the first year.
- The RBCRs include new use-based cleanup criteria (managed multi-family residential and passive recreation) and new alternative compliance provisions. There will be new lower bounds on releases, below which no action is required.
- There will be special cleanup pathways for releases of home heating oil and discovery of PFAS and road salt in private well supplies.
Contact GEODesign for guidance in:
- Evaluating business risk in property acquisition and development
- Understanding the triggers for release reporting and what conditions are exempt from reporting
- Managing the pathways for sites through characterization, remediation and closure
- Other aspects of the new Release Based Cleanup Program
Author: Paul Woodell, L.E.P., PG, Associate, 203-758-8836 ext. 106
