Man sits on a cooler holding a bottle of clear liquid and a syringe

CSS supports the Environmental Protection Agency with assessing contamination within abandoned mines. There are thousands of abandoned mines throughout the western United States. Many of these mines are leaching heavy metals into nearby streams or have contaminated soils causing vegetation die off.  

CSS employee owners conduct field work to assess the extent of this contamination. During field excursions, staff collect soil and water samples and characterize the extent of contamination. The team analyzes sample on site and in the laboratory for heavy metals. This information informs remediation plans for contaminated sites.

Feature image credit: Peter Robbins, Unsplash

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Quality Assurance Audit Reports 

Since 1985 we’ve supported the National Institute of Environmental Health Sciences and have provided more than 1,600 quality assurance audit reports that the client has used to assess the quality of toxicology studies they sponsor.    Over the last year our employee owners reviewed several studies involving per- and polyfluorinated substances (PFAS) compounds, or “forever chemicals”,…

Large-Scale Decontamination Proves Successful

In the spring of 2022, we worked with the U.S. Environmental Protection Agency and the U.S. Coast Guard on a project called Analysis for Coastal Operational Resiliency-Wide Area Demonstration (WAD) which tests large scale decontamination following the release of surrogate bioagents. The team conducted a WAD at a military base in Virginia to test decontamination…

Bee in a large, bright yellow bloom

Over 40 Years of Support

Since 1982, members of our staff have supported EPA’s Office of Pesticide Programs. As part of this contract, our staff assess environmental and human health impacts on anthropogenic chemicals. The agricultural industry is critical to food and textile production, it is a large contributor to the U.S. economy. Not only does the industry provide food…