EPA START contractors finalized chemical wastes inventory, hazard characterization and compatibility testing. START demobilized from the Site on September 19, 2019.
EPA ERRS contractor over-packed compromised drums, lab-packed compatible containers for temporary storage and setup a secure staging area.
Chemical wastes and residues were removed from five steel tanks. The internal components of the tanks were heavily contaminated and could not be salvaged. Tanks were cleaned and staged outside for recycling by the waste owner.
Once all waste had been properly consolidated and packaged for temporary storage, ERRS secured the staging area. All chemical wastes have been stabilized and secured in a temporary storage are on Site. The State of South Dakota has agreed to monitor the the Site periodically until EPA can secure a waste transportation and disposal contractor. Once EPA has been able to do so, EPA will re-mobilize to the site.
EPA and ERRS contractors demobilized from the Site on September 21, 2019.