Business Details
50+ Years
experience
Trusted Environmental Remediation Services in Niagara Falls
Founded in 1917, Sevenson Environmental Svc has evolved from a general contractor to a national leader in environmental remediation. Our expertise spans hazardous material cleanup, environmental dredging, and remedial construction, supported by a fleet of specialized equipment and a team of 30 full-time Health and Safety Officers with an average of 14 years of service. We have completed over 1,500 projects, including 141 Superfund sites, with a total contract value exceeding $5.3 billion. Our approach combines practical construction insights with regulatory compliance to deliver cost-effective, innovative solutions.Recognized as an ENR Top 400 Hazwaste Firm for decades, we prioritize safety, client collaboration, and sustainable outcomes. Our in-house treatability study lab and proprietary technologies like MAECTITE chemical treatment enhance our ability to address complex environmental challenges. With a legacy of excellence dating to the Love Canal Superfund project in 1979, we remain committed to advancing remediation standards while maintaining a 40-year track record of zero lost-time accidents on critical projects.
Services
Remedial Construction
Environmental Dredging
Coal Ash Pond Closures
Radiological Remediation
Residential Remediation
Sediment Capping
Decontamination Demolition
Design Build Services
Treatability Studies
Habitat Restoration
Details
- Year established: 1917
Highlights and features
- We have completed 1,500+ environmental remediation projects since 1979.
- Our team includes 30 full-time Health and Safety Officers with CHST/OHST certifications.
- We own a proprietary MAECTITE chemical treatment process for heavy metals fixation.
- We operate a state-of-the-art treatability study lab for sediment processing solutions.
- We maintain a 40-year safety record with zero lost-time accidents on major projects.
What people say
Best cleanup project I have ever seen
Proven depth of expertise
Exceeded expectations
Outstanding communication
Award-winning performance
Services
Remedial Construction
Sevenson Environmental Svc delivers hands-on remedial construction services using in-house equipment and a construction-centric approach. Our team specializes in excavation, landfill closures, hazardous waste handling, and steel sheeting systems. With roots in general construction, we optimize project plans for cost efficiency while maintaining strict regulatory compliance.
Environmental Dredging
As the only pure remedial firm with dredging expertise, we operate cutterhead, hydraulic, and mechanical dredges for river, lake, and harbor sediment cleanup. Our capabilities include dewatering, capping, and mobile water treatment systems. We've completed high-profile projects on the Hudson River, New Bedford Harbor, and Gowanus Canal.
Radiological Remediation
With experience since 1986, we handle low-level radiological and mixed waste remediation. Our specialized crews implement containment, decontamination, and disposal solutions for nuclear facilities and contaminated sites. We maintain strict safety protocols for DOE and commercial nuclear clients.
Coal Ash Pond Closures
Our dredging and dewatering expertise addresses coal combustion residual (CCR) closures. We implement full-cycle solutions including sediment removal, dewatering, and habitat restoration. Recent projects include closure of five coal ash ponds at Gary, Indiana's D.W. Mitchell Generating Station.
Treatability Studies
Through subsidiary Waste Stream Technology, we conduct biological, thermal, and chemical treatability studies. Our lab develops customized solutions for sediment stabilization, dewatering, and contaminant fixation, ensuring optimal remediation strategies for complex waste streams.
Questions
What environmental remediation services does Sevenson Environmental Svc offer?
We provide remedial construction, environmental dredging, radiological remediation, coal ash pond closures, and habitat restoration services for contaminated sites.
How experienced is Sevenson Environmental Svc in Superfund site cleanup?
We've completed 141 Superfund projects since 1979, including high-profile sites like Love Canal, New Bedford Harbor, and the Hudson River.
What safety certifications does Sevenson Environmental Svc hold?
Our 30 full-time Health and Safety Officers include Certified Hazardous Materials Managers (CHST) and Occupational Health and Safety Technologists (OHST).
Can Sevenson Environmental Svc handle complex industrial remediation projects?
Yes, we've completed 1,500+ projects with $5.3B in contracts, including manufactured gas plant remediation and industrial facility decontamination.
What geographic areas do you serve?
We operate nationwide with offices in Niagara Falls, NY, and Baltimore, MD, serving clients from Alaska to Puerto Rico.
How does Sevenson Environmental Svc ensure regulatory compliance?
We maintain site-specific health and safety plans since 1979 and work closely with EPA, USACE, and DOE to meet all regulatory requirements.
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