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.

See More CSS Insights

small plants growing in plugs

Conducting Greenhouse Soil Tests for Soil Remediation Recommendations 

There are thousands of abandoned mines in the Western United States and residual heavy metal concentrations can be high in mine spoils. These spoils can also be quite acidic. Acidic soils with high concentrations of heavy metals can significantly impact the re-establishment and growth of native plant species at these sites. Even after removal of soils with the…

New Data and Reports on the U.S. Marine Economy

Each year CSS economists on contract with NOAA’s Office for Coastal Management work with other federal agencies to process the most recent economic and labor data, and extract the portions related to marine-dependent sectors.

Swirls of blue, green, and orange on a global map

Evaluating the Use of Earth Observations Digital Twin Technologies 

Earth Observations Digital Twin technologies are data analytics, artificial intelligence, and advanced modeling technologies that provide an estimate of the true state of the Earth. An Earth Systems Digital Twin is observations-based and grid-flexible with multiple components and high-resolution data over space and time to capture all available observations and feed a variety of direct…