Superior environmental remediation, ecological restoration, geotechnical construction, and demolition services

"As part of the Washington Group of companies, Envirocon is founded on efficiently executing technically challenging projects with tenured employees who share common values of safety, quality, integrity, and community. We are aligned with our customers’ expectations and return value to our ownership."

Kris Kok, President, Envirocon

Inspired People Building a Better Future

Envirocon, Inc.’s core services include environmental remediation, ecological restoration, geotechnical construction, and decommissioning and demolition for government and commercial clients across the United States. Envirocon has the technical expertise and project experience to deliver a wide array of environmental projects while meeting safety, quality, regulatory, cost, and schedule requirements. Envirocon collaborates with clients to self-perform high-profile, complex projects in urban and remote settings.


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Our Primary Disciplines Cover a Range of Environmental Services

We partner with our clients to mitigate risks and deliver results by developing innovative and sustainable solutions that add value to complex projects.  Envirocon offers proven safety performance, project delivery, and financial strength and stability unmatched in our industry. We serve our clients with integrity and provide reliable, safe, and high-quality results.

Environmental Remediation

Envirocon has the technical expertise and project experience to support a wide array of environmental projects while meeting safety, quality, regulatory, budget, and schedule requirements. We have safely delivered projects such as contaminated soil excavation in urban and remote settings; sediment dredging, removal, and dewatering projects in lakes and rivers; closure of coal ash impoundments and basins; and construction, operation, and capping of repositories and landfills. Our focus on operational excellence allows clients to benefit from best practices across areas of expertise, from project planning and startup through delivery and operations.

Ecological Restoration

We are committed to protecting and restoring our environment and recognize the importance of sustaining environmentally sensitive ecosystems. Our project resume includes major dam removal and river restoration projects, habitat restoration in riverine settings, wetlands mitigation and construction, and levee reinforcement projects. Envirocon’s understanding, innovation, and safe and successful execution of these critical ecological projects is reinforced by our company vision to return sustainability to our environment.

Geotechnical Construction

Envirocon’s geotechnical construction projects include some of the longest and deepest slurry and reactive barrier walls in the US. We provide sheetpile containment and excavation support systems, soil mix containment and foundation systems, and in-situ stabilization and treatment. Slurry trenching techniques include soil bentonite slurry walls for civil applications, including levee strengthening and groundwater management; bio-polymer collection trenches with biodegradable slurry for slope stabilization, groundwater collection, and dewatering applications; and zero-valent iron permeable reactive barriers to treat groundwater. Envirocon’s in-situ stabilization expertise includes column drilling and stabilization with reagents for deeper applications; bucket mixing technology for shallower applications; and hydraulically applied jet grouting.

Decommissioning & Demolition

Safe execution is our highest priority on our decommissioning and demolition (D&D) projects. We have performed D&D projects at some of the most complex sites in the nation including Rocky Mountain Arsenal, Los Alamos National Laboratory, and Rocky Flats Environmental Technology site. We serve government and private clients across the nation delivering safe D&D projects in challenging environments where schedules are aggressive, assets must be protected, and environmental requirements met. Our project resume includes demolition of coal-fired power plants, aluminum smelters, paper mills, manufacturing plants and industrial facilities, and chemical weapons plants.


Kris Kok

Mr. Kok serves as Envirocon’s President. Since joining Envirocon in 1989, as a Project Manager, he has successfully completed numerous projects involving a vast array of technologies and processes used in the environmental remediation industry. These projects were executed for Fortune 100 and 500 firms, federal agencies, and state governments. Mr. Kok also has experience with remedial investigations, remedy evaluations and selection, and regulatory negotiations. He completed his B.S. in Earth Sciences at Montana State University. As the President of Envirocon, Mr. Kok is responsible for the strategic direction and management of the company and promoting growth and expansion for the overall success of the company.