We approach our clients’ environmental challenges with the endgame in sight—whether it’s cleaning up legacy pollution, complying with environmental protection standards, or ensuring that restored environments are safe. We combine our multidisciplinary and collaborative approach with technical expertise and practical perspectives to achieve permanent solutions that work.


Our team designs and delivers efficient, science-based, multimedia environmental investigations that provide the data needed to answer the important questions and develop the right solutions.  We are targeted, on point, and strategic.  The result is remedial strategies that are protective, sustainable, and cost‑effective.

Site Characterization | Remedial Investigation | Feasibility Study | Risk Assessment | Conceptual Site Models | Water, Soil, Sediment, Stormwater, Air | Biological Assessment | Fate and Transport | Modeling | Data Quality Objectives | Sources | Pathways


We know that complying with environmental, health, and safety regulations is a priority for our clients.  So is meeting business objectives.  That’s why we consider both when building compliance strategies.  Within this framework, our scientists and engineers bring to bear the relevant technical factors to develop robust programs to meet a range of federal, state, and local regulatory standards.

CERCLA | RCRA | TSCA | NPDES | Proposition 65 | NEPA | CEQA | TMDL | MS4 | Stormwater


We help our clients navigate the world of emerging contaminants and build effective management strategies within this ever-changing landscape.  Our seasoned multidisciplinary EC team combines in-depth technical knowledge with a comprehensive understanding of regulatory and stakeholder priorities.  Our experience and insight help our clients respond to the range of health, environmental, engineering, and business challenges posed by emerging contaminants.

PFAS | Assessment | Management | Toxicology | Risk Assessment | Risk Communication | Treatment | Litigation Support | Product Stewardship | 1,2,3-Trichloropropane | 1,4-Dioxane


We offer comprehensive sediment management services to help our clients evaluate and remediate contaminated sediment sites; plan navigation dredging projects; and manage sediments in lakes, rivers, estuaries, and impoundments.  Our services are fully integrated with our risk assessment, engineering, remediation, modeling, restoration, and natural resources capabilities.  The result is sustainable, environmentally sound, and cost‑effective solutions.

Sediment | Site Characterization | Source Identification | Dredging | Dredged Material Evaluation | Risk Assessment | Remediation | Porewater | Modeling | Sediment Profile Imaging


We apply quantitative analyses and models to resolve key questions about the magnitude, sources, fate, and transport of organic and inorganic chemicals in the environment. Developing robust conceptual site models that describe the physical, chemical, and biological processes governing chemical behavior and fate is the framework of our approach.  The results lead to more effective site investigations, remediation strategies, and identification of chemical sources.

Modeling | Groundwater | Water Quality | Air | Hydrodynamics | Sediment Transport Remediation | Source Identification | Forensics | Allocation

Monitoring Technologies

We get it.  You have questions.  You need data to answer them.  And those data need to be reliable, robust, and acquired efficiently.  Our team excels at designing and implementing monitoring programs that utilize the right combination of technologies to meet your needs.  We have decades of experience in properly and safely implementing these technologies and then evaluating the results to achieve solutions that work.

ADCP | OPTICS | SEDflume | Sediment Profile Imaging | Acoustics | Remote Sensing | Aerial Drones | Multi-parameter Water Quality Sonde | Spotter | Drifter | Laser Particle Sizer | Real-Time Systems


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