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U.S. Environmental Protection Agency

We partner with EPA to tackle PFAS, deliver clean water, remediate contamination and build resilient infrastructure, helping protect public health and strengthen communities for the future.

Market Lead

Veronica Winkeljohn

Our history powers our progress

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CDM Smith is proud of our 40+ years history as an EPA contractor, where we have successfully collaborated with federal and state agencies to deliver innovative technical remedial solutions with optimal results, on the most complex and challenging sites nationwide.

CERCLA RI/FS/RD and oversight support

Bringing cutting-edge tools to investigations, delivering faster insights and smarter cleanup strategies for complex sites.

PFAS and emerging contaminants

Our PFAS and emerging contaminants expertise helps EPA accelerate cleanups and strengthen water systems through technical guidance and proven strategies.

Remedial action construction

Delivering remedial action construction that helps EPA achieve cleanup goals, meeting compliance and protecting public health.

Lead in drinking water

Helping reduce lead exposure by identifying and replacing service lines, improving water systems and delivering safe drinking water for all communities.

A trusted partner

630

Superfund sites supported

10

U.S. EPA regions supported

53

states and territories supported

79%

exceptional and very good CPARS ratings in CERCLA task orders

Featured projects

View All Federal Projects

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Tacoma, Washington

Rethinking Superfund remediation

CDM Smith supported USEPA in meeting ambitious cleanup goals at the Well 12A Superfund site, an area contaminated with DNAPLs that had baffled scientists and engineers for decades.

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Portland, Oregon

Remediation of a Superfund mega site

Our team is collaborating with federal agencies, tribal government and private partners to remediate Portland Harbor and the Willamette River.

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Coeur D'Alene Basin, Idaho

Consolidating waste to restore the Coeur d’Alene Basin

Decades of mining left the Coeur d’Alene Basin heavily polluted. The Coeur d’Alene Trust and CDM Smith delivered a cost-efficient, EPA-compliant solution to restore the watershed.

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Available federal contracting vehicles

CDM Smith holds active U.S. government contracts, which are available for use by various agencies. See a complete list of our active contracting vehicles.

Related insights

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Insight

Interactive PFAS regulations tracker

PFAS pose one of the greatest challenges to the environment and public health in decades. Our interactive map helps you see your state’s current guidance and federal regulations on PFAS.

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Insight

Understanding EPAs risk assessment for PFAS in biosolids

EPA released its first draft risk assessment for PFOS and PFOA in biosolids on January 14, 2025. CDM Smith toxicologist Heather Lanza breaks down what that means for utilities and other entities that manage wastewater and biosolids.

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Insight

EPA proposes addition of nine PFAS to RCRA

EPA proposed the addition of nine PFAS compounds to the list of “hazardous constituents” to be considered in Resource Conservation and Recovery Act (RCRA) facility assessments.

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I’m proud of our 40+ year partnership with EPA. Together, we tackle tough challenges and deliver innovative solutions that make a real difference.

Veronica Winkeljohn PE, PMP

Civil Engineer

Veronica has environmental and engineering consulting experience leading federal and private sector client teams, providing high quality environmental solutions.

Related practices

Climate Resilience

We can no longer rely on the past to prepare for the future. Our teams work across water, transportation, environment and infrastructure to implement right-size solutions backed by climate science.

Federal Facilities

Resilient facilities enable federal agencies to maintain and enhance readiness to protect the nation. CDM Smith designs and constructs federal facilities and infrastructure around the world.

Construction

CDM Smith is an integrated design-builder with a legacy of successful projects. We work as one entity to deliver a legendary client experience from project inceptions through design, preconstruction, construction and commissioning.

Program Management

CDM Smith’s program management team is bringing complexity under control by building strong, enduring relationships.

Conveyance

Whether you’re concerned about keeping existing water conveyance assets healthy or building new ones, we’re here to help you find the answers you need.

Remediation

We restore environments and protect communities by delivering innovative, science-based solutions that reduce risk and lifecycle costs. Using advanced technologies and adaptive strategies, we help clients achieve resilient, long-term results.

Drinking Water

Whether your goals are to unlock new sources, enhance the quality and reliability of the supplies you have or upgrade the technologies you use, we can help you achieve water supply innovation.

Water Resources Infrastructure and Resiliency

Forward-thinking water resources planning, design construction and operations means making smarter investments that lower life-cycle costs and provide multiple benefits.

Emerging Contaminants

Our engineers and scientists are working tirelessly to solve the world’s most complex contamination challenges. Together, we’ll find solutions to the latest threats to public health.

Ready to take the next steps?

We love collaborating with passionate individuals and organizations. If you want to talk about potential projects, reach out to our experts. If you're interested in joining our team, check our careers page for open positions or internships.

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