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Responding to Tangipahoa River Contamination
Following a fire at Smitty’s Supply facility in Louisiana’s Tangipahoa Parish on August 24, 2025, CSS employee owners supporting the Environmental Protection Agency’s Scientific Technical and Assessment for Consequence Management (STACM) contract deployed to the scene on August 31 to assist with response efforts. Initially staff worked on logistics at the staging warehouse. After a short time, CSS staff spent the majority of their deployment in the field conducting roving air monitoring, searching for oil pockets on the Tangipahoa River, mapping pockets and containment booms on ArcGIS Field Maps, photographing shoreline contamination, and documenting daily oil recovery totals.
While monitoring the air for volatile organic compounds (VOCs), CSS staff and assigned crew discovered three turtles trapped in oil sludge. Protocol dictates the crews report deceased or distressed wildlife to the Louisiana Department of Wildlife and Fisheries so that trained staff are able to collect the animals. However, wildlife rehabilitators were unavailable to rescue the turtles at that time. Instead, the dispatcher instructed staff on how to safely collect, contain, and clean the turtles. CSS staff removed the turtles from the oil one by one, placed them in the back of an ATV, and transported them to the decontamination station. From there, the team rinsed the turtles with a hose, placed them inside a kiddie pool with two inches of water, and added sorbent pads to soak up the oil sheen. The team temporarily housed the turtles until Louisiana Department of Wildlife and Fisheries could have someone pick them up the next day. A Louisiana Department of Wildlife and Fisheries employee retrieved the turtles the following afternoon. They brought them to a rehabilitation facility that specializes in helping oiled wildlife. All three turtles are expected to make a full recovery and will be released back into the wild!
Upon departure on September 16, CSS staff had assisted with recovering roughly 4.5 million gallons of oil.
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Quality Assurance Audit Reports
Since 1985 we’ve supported the National Institute of Environmental Health Sciences and have provided more than 1,600 quality assurance audit reports that the client has used to assess the quality of toxicology studies they sponsor. Over the last year our employee owners reviewed several studies involving per- and polyfluorinated substances (PFAS) compounds, or “forever chemicals”,…
Hurricane Helene One Year Later: Shedding Light on the Impact
It’s been one year since Hurricane Helene caused catastrophic damage throughout the southern Appalachia region, especially Tennessee and North Carolina, where several rivers experienced above-record flooding. CSS employee owners (previously Riverside Technology, inc.) supporting NOAA’s National Centers for Environmental Information (NCEI) helped develop a Hurricane Helene StoryMap, Helene in Southern Appalachia, a dynamic tool that integrates diverse…
Remediating Soil Surrounding Abandoned Mines
CSS employees have been providing field, lab, and horticultural support for the Environmental Protection Agency’s efforts to develop and test methods for the remediation and revegetation of contaminated soils around selected abandoned mines in the western United States. One of the promising approaches is to incorporate biochar into the soil. Using biochar helps effectively adsorb trace metals and reduce their…