Every five years teams supporting U.S. Environmental Protection Agency’s National Aquatic Resource Survey—consisting of tribal, state, and federal partners—collect samples from over 2000 river and stream reaches throughout the United States. CSS analytical chemists support this effort by processing the samples and then analyzing them for various chemicals to help characterize their water quality.  The data are available at the U.S. EPA National Aquatic Resource Survey website where more information is provided on this program.

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stream running through a wooded area

Developing a Stream Assessment Protocol 

CSS has been a significant contributor to the development and implementation of the Oregon Stream Function Assessment Method (SFAM) for more than 10 years. SFAM is a key component of the Oregon Stream Mitigation Program administered by the Oregon Department of State Lands.  The mitigation program is designed to address damage to aquatic resources caused…

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…

View over a valley with a fog settled between the mountains

Monitoring Air Quality in California’s San Joaquin Valley

CSS employee owners supported the deployment and operation of the U.S. Environmental Protection Agency (EPA) air quality monitoring trailer (WEAVE COM – Western Enhanced Air quality VEhicle for COmmunity Monitoring) in California’s San Joaquin Valley in during late fall and early winter of 2024.  Elevated particulate matter (PM2.5) is frequently found throughout the valley during…