- Success Stories, Uncategorized
- Emergency Preparedness & Response
Developing a Decontamination Line Guide for EPA Responders
CSS employee owners supporting the Environmental Protection Agency’s (EPA) Scientific and Technical Assistance for Consequence Management (STACM) contract have been working with the National Chemical Preparedness Workgroup and Sub Workgroups to create a decontamination (decon) line guide and detailed drawing for EPA on-scene coordinators and EPA’s special teams to use for emergency responses and incidents. The decon line guide and drawings presents a detailed approach and steps to decon responders for different levels of personal protective equipment (PPE) (A, B, C, and D) used during responses to dangerous chemicals in the field. The decon guide includes the steps and lists of equipment and materials needed to put together a decon line with most equipment commercially available off-the-shelf (COTS). CSS scientists developed the steps, guide, and drawings.
Following the development of the decon line guide, CSS scientists demonstrated the lines for EPA on-scene coordinators and special teams by directing the EPA responders through the line providing verbal instruction to ensure they followed all steps.
One critical step in an effective decon line is to screen each responder to ensure that no dangerous chemicals remain on their personal protective equipment (PPE). During the decon line demonstration, CSS scientists screen EPA responders with a chemical monitoring instrument to ensure all chemicals were removed. Following the decon, if CSS scientists detect chemicals on the PPE, they instruct the responder to return to the beginning of the decon line to repeat the process.
The line guide, processes, and demonstrations are critical in ensuring EPA responder safety when responding to dangerous chemicals in the field.


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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…
Webinar Support for Emergency Chemical Release Response
Our staff assisted the EPA team in developing the webinar event, acted as moderator, and provided technical support.
