Professional Waste Management & Industrial Solutions Since 1999
Get A Project QuoteTRI-S Environmental provides turnkey solutions for the identification, transportation, and disposal of hazardous and non-hazardous waste streams. We specialize in helping facilities remain in full compliance with state and federal EPA regulations while minimizing disposal costs.
When an environmental incident occurs, speed is critical. Our OSHA HAZWOPER certified emergency response teams are on call to manage oil, fuel, and chemical spills on land or water.
Our Response Capabilities:


We provide comprehensive maintenance and closure services for both Underground Storage Tanks (UST) and Aboveground Storage Tanks (AST). Whether you are upgrading your facility or managing a property transfer, TRI-S ensures the process is safe, documented, and fully compliant with DEEP regulations.
The disposal of small-quantity, diverse chemicals requires high technical expertise. Our professional chemists categorize, package, and manifest expired chemicals for schools, hospitals, and laboratories, ensuring 100% DOT and EPA protocol compliance.
Fully bonded and insured for high-stakes environmental projects, providing you with total peace of mind and full liability protection.
Established in 1999, we bring over two decades of local expertise to every spill response and remediation project across New England.
Our field technicians undergo rigorous 40-hour HAZWOPER training to ensure the highest safety and technical standards in the industry.
Contact our Ellington, CT office today for a customized waste management plan or site assessment.
Serving: CT, MA, RI, and NY
Waste is classified as hazardous if it is ignitable, corrosive, reactive, or toxic. TRI-S Environmental provides waste profiling and chemical characterization to ensure your facility remains in compliance with CT DEEP and EPA regulations.
We provide Emergency Response. Based in Ellington, CT, we have immediate access to major corridors like I-84 and I-91, allowing us to reach most sites in Connecticut and Western Massachusetts within hours.
Absolutely. We provide a full audit trail, including Uniform Hazardous Waste Manifests and Certificates of Disposal, ensuring you meet all state and federal record-keeping requirements.