Our staff on contract with the Environmental Protection Agency’s (EPA) Scientific and Technical Assistance for Consequence Management Team recently provided support for the development, coordination, and moderation of a pre-Operational Testing and Evaluation of Chemical Remediation Activities webinar for EPA On-Scene Coordinators. The EPA Office of Research and Development presented on the use of provisional advisory levels (PAL). The EPA Office of Emergency Management CBRN Consequence Management and Advisory Division (CBRN CMAD) presented on the process of chemical clearance during an emergency chemical release incident. Our staff assisted the EPA team in developing the event, acted as moderator, and provided technical support. This educational and interactive webinar was critical in providing the On-Scene Coordinators with information that will support them in their efforts during an emergency chemical release event. The webinar was a big success, with approximately 50 participants, and received very positive feedback from attendees. 


EPA Office of Emergency Management gave an interactive presentation on the clearance process after the release of a chemical warfare agent.

EPA Office of Research and Development gave an interactive presentation on the use of PALs during an emergency chemical release event.

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Woman pours works with chemical with a test kit

Supporting Guam’s Chemical Round Up

Senior chemist working on the CSS contract with the Environmental Protection Agency’s (EPA) Superfund Technical Assessment and Response Team (START) supported the Guam Lab Chemicals Round Up in March of 2024 and July of 2025. During both mobilizations, START supported EPA’s mission to collect chemical waste items from across the U.S. island territory of Guam for off-island transport and disposal. As a field chemist, CSS employee…

Vast tidal wetland with storm approaching

Supporting Wetlands Today and Throughout the Year

February 2 is World Wetlands Day, a day to celebrate and honor these invaluable ecosystems. Through a variety of projects on several contracts, our employee owners support wetlands throughout the year. Below are some examples of projects that CSS works on to support wetlands and promote the benefits they provide.

Worker collects sample of soil

Supervisory Support for 2025 Southern California Wildfires Response Efforts 

Long after wildfires are extinguished, ongoing efforts continue to assess long-term damage and contamination. CSS employee owners are often heavily involved in these efforts and follow up to ensure response operations do not impact the environment.  Response efforts in South California continued throughout the year following the 2025 wildfires that devastated the Los Angeles area. CSS continued to support the damage assessment through a U.S. Environmental Protection Agency…