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 owner supporting the effort conducted Hazard Categorization (HazCat) testing on hundreds of unlabeled waste items to help determine the most appropriate waste stream for safe shipping and disposal of each item. CSS employee owner used the EPA Region 9 GeminiTM Chemical Identification analyzer to identify chemicals that appeared to be in their original containers, but that had missing or weathered labels. START supported worker health and safety by conducting screening of the chemical collections and storage spaces for toxic and volatile gases, explosive limits, radiation, and mercury vapor prior to initiating work, and by conducting air monitoring for toxic and volatile gases, and explosive limits during all handling and packing of the chemical wastes.
See More CSS Insights
Responding to HazMat Spills
CSS supports several Centers for Disease Control and Prevention (CDC) campuses throughout the U.S. On-site CSS personnel are trained in hazardous material spill response and clean-up and provide this support within buildings and throughout campuses. As part of our contract with the CDC Hazardous Waste Program, CSS hazmat-trained employee owners are responsible for safely collecting,…
Preparing and Delivering Samples for Travel to the International Space Station
CSS employee owners on contract with NASA delivered six newly prepared Solidification Using a Baffle in Sealed Ampoules (SUBSA)—a high temperature furnace with temperature and timing control for melting samples to create different materials and alloys—samples for the NG-23 launch, which took place on September 14, 2025. On this mission, samples are being delivered for…
Safety Support To First Responders
First responders put their lives on the line to help others, and our team helps safeguard their protection. Our team on contract with the National Institutes of Health (NIH) Respiratory Protection Program works with staff to test respirators and establish secure fits. Similarly, they provide these fit tests for fire department personnel on a regular…