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Explore our insights and thought leadership on environmental, health, and natural resource challenges past and present.

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Case Study

OPTICS Study on Mercury Releases to South River

Elevated concentrations of mercury and methylmercury in water bodies can pose significant health risks to humans and wildlife. In Virginia,...

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Florida v. Georgia, Supreme Court No. 142

Florida and Georgia have been feuding for more than 25 years over water in Apalachicola Bay; Georgia needs water for...

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Acoustics Characterizing Noise Associated with Marine Energy

Monitoring and mitigating underwater sound is critical for the design, implementation, and permitting of ocean-based development projects such as marine...

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Expert Witness Testimony and Litigation Support for an Active Wood Processing Facility

A plaintiff group had alleged that releases of dioxins, PAHs, and other chemicals had entered the attics and crawl spaces...

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Oral Reference Dose for Perfluorohexanoic Acid

Prompted by health concerns, industry phased out long-chain per- and polyfluoroalkyl substances (PFAS), replacing them with short-chain PFAS for their...

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Residual Ecological Risk Assessment to Support Landfill Feasibility Study

As part of a feasibility study for a former landfill in New Jersey, we were asked to evaluate the ecological...

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Decommissioning Oil Platforms—An Ecosystems Services Approach

Decommissioning aging oil platforms at sea requires complex engineering to safely remove structure and equipment. While advanced treatment technologies now...

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Blackwell Zinc Site – Groundwater Remediation

A former zinc smelter operating from 1916 to 1974 released zinc and cadmium sulfate solutions to the surficial alluvial aquifer...

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Alaska LNG Sediment Modeling

Alaska LNG has proposed constructing a pipeline from the North Slope to Cook Inlet that would deliver natural gas for...

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Groundwater Flow and Transport Model of Pentachlorophenol Plume Attenuation: Oregon

Pentachlorophenol (PCP) treatment was used at a sawmill from the early 1960s to mid-1980s. A PCP soil source was remediated...

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Douglas Harbor Dredging: Alaska

In Douglas Harbor, Alaska, a planned harbor renovation required dredging and placement of approximately 30,000 cubic yards of mercury-contaminated sediment...

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PFAS Detected in Drinking Water Supply

Per- and polyfluoroalkyl substances (PFAS) were detected in a potable water supply well. Meanwhile, the regulatory agency was contemplating drinking...

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Development of Regulatory Toxicity Criteria for Lindane and Isomers

Although lindane is no longer produced or used agriculturally in the United States, exposure to hexachlorocyclohexane (HCH) isomers is of...

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Risk Assessment for PCBs in Soils at a Ranch

PCBs originating from a former gas plant had contaminated a nearby cattle ranch in rural Texas. The State of Texas...

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Remedial Investigation and Feasibility Study at San Jacinto River Waste Pits Superfund Site: Texas

In 2009, the San Jacinto River Waste Pits RI/FS was initiated to address dioxins and furans associated with wastes from...

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Former DDT Manufacturing Facility Site Investigation: Oregon

DDT and related chemicals from historical pesticide manufacturing and other sources were found in river sediments at the Portland Harbor...

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Waves Anywhere: Real-Time Wave Modeling at Integral

Although forecast wave models are publicly available and widely used in the scientific community, implementation of real-time forecast modeling is...

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Ecosystem Impacts for Matilija Dam: California

Originally built in 1947 to store water for agriculture, the Matilija Dam in California has been obsolete for more than...

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Former Industrial Laundry PCE Contamination Lawsuit: Washington

Regulatory and financial constraints had curtailed our client’s efforts to actively remediate a PCE-contaminated former industrial laundry facility in an...

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Source Identification, Chemical Fingerprinting, and Expert Testimony: Washington

When polycyclic aromatic hydrocarbons (PAHs) were found in the Thea Foss Waterway, several parties contributed to the cleanup costs. One...

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Deepwater Horizon—Information Management for NRDA: Louisiana

The Deepwater Horizon accident was unprecedented with regard to the volume and urgency of data to be collected, organized, shared,...