Since 1992, SEMS Inc. has delivered precise, cost-effective environmental remediation to clients across the United States. Our team of engineers, geologists, and environmental scientists understands the urgency of eliminating contamination risks, and we bring the technical depth, field experience, and specialized equipment to do it right: safely, on schedule, and within budget. Whether you’re managing a legacy contamination issue or responding to an active release, SEMS provides the turnkey support you need to achieve a compliant, lasting resolution.
Effective remediation demands more than a standard cleanup protocol. It requires a foundation of solid engineering, rigorous scientific data, and real-world field experience. Our professionals design the most efficient remedial plans for each unique site, integrating proven technologies with innovative approaches to minimize cost and downtime. We maintain transparent communication throughout every phase of the project, because we know trust is just as important as technical execution.
As a full-service environmental remediation company, SEMS mobilizes experienced crews and specialized equipment to sites across the South, Southeast, East Coast, and throughout the broader U.S. Our turnkey model means a single point of accountability from initial assessment to final site restoration.

SEMS delivers a wide range of environmental remediation solutions, each tailored to the specific conditions, contaminants, and regulatory requirements of your project.
We design and install customized soil and groundwater treatment systems that address contamination at the source. Our capabilities include in-situ and ex-situ treatment, system operations and maintenance (O&M), discharge permitting, and detailed compliance reporting.
Our crews perform safe, efficient excavation of impacted soils, managing the full chain of custody from the site to licensed disposal facilities. We coordinate transportation logistics and confirm disposal compliance under applicable federal and state regulations.
ISCO is one of our most effective tools for treating dissolved-phase contamination in groundwater. We inject oxidizing agents directly into the subsurface to chemically destroy contaminants, reducing cleanup timelines and avoiding the need for extensive excavation.
We manage the full closure of industrial ponds and impoundments, including dewatering, sediment characterization, waste removal, and final grading, all performed in accordance with applicable regulatory closure standards.
With increasing regulatory pressure on coal combustion residuals (CCR) sites, SEMS provides structured ash basin closure services. We manage the technical, logistical, and regulatory complexities of these large-scale projects from start to finish.
Our team handles the safe and compliant closure of industrial and municipal landfills, including cap system design and installation, leachate management, and post-closure monitoring plan development.
SEMS performs structural and environmental repair of compromised levee systems, applying engineering rigor and careful materials management to restore structural integrity and protect surrounding areas.
We conduct mechanical and hydraulic dredging for contaminated sediment removal in ponds, impoundments, rivers, and coastal waterways. Projects span industrial facilities, municipal water bodies, and utility sites across the Southeast and East Coast.
When free-phase petroleum or chemical products are present in soil or groundwater, rapid recovery is critical. We deploy specialized equipment and techniques to recover product efficiently and minimize further subsurface migration.
Our certified professionals safely remove, package, and dispose of hazardous materials encountered during remediation activities, maintaining strict regulatory compliance throughout the process.
We employ on-site processing techniques to reduce the volume of waste requiring off-site disposal, lowering your project costs and overall environmental footprint.
Once remediation objectives are met, we restore the site to a clean, safe, and functional condition — including final grading, seeding, and coordination with regulatory agencies to obtain formal site closure.
Emerging contaminants demand specialized expertise. SEMS provides targeted PFAS, PFOA, & PFOS remediation services, including advanced treatment system design, activated carbon filtration, ion exchange resin installation, and compliant waste disposal. Our team keeps pace with rapidly evolving PFAS regulations to deliver solutions that hold up under regulatory scrutiny.
From leak investigation to tank removal and site closure, SEMS manages the full lifecycle of underground storage tank (UST) services under applicable state and federal UST program requirements.
SEMS has performed environmental remediation across a broad spectrum of sectors, each presenting distinct challenges that demand tailored approaches.
Our work spans Louisiana and the Gulf Coast, the broader Southeast, the East Coast, and project sites nationwide.

When selecting an environmental remediation contractor, reliability, safety, and technical credibility are non-negotiable. SEMS delivers on all three.
Complex remediation projects often require capabilities beyond cleanup alone. As a full-service firm, SEMS integrates our remediation work with our broader environmental divisions to deliver seamless, comprehensive project support.
This fully integrated approach means fewer contractors, clearer accountability, and faster project execution for our clients.
Complex remediation projects often require capabilities beyond cleanup alone. As a full-service firm, SEMS integrates our remediation work with our broader environmental divisions to deliver seamless, comprehensive project support.
This fully integrated approach means fewer contractors, clearer accountability, and faster project execution for our clients.
If you’re managing contaminated soil, impacted groundwater, a legacy industrial site, or an emerging contaminant challenge, SEMS Inc. has the expertise and resources to help. Our team is ready to evaluate your project and build a plan that gets you to closure efficiently.
Call us today at 1-800-924-SEMS





