EPSYS was retained to perform a complete site characterization of a petroleum spill and a three acre fire training site. A leak from an aboveground storage tank containing petroleum hydrocarbons had occurred, which flowed into a storm drain and then into a swale. Investigation of the spill uncovered heavy concentrations of chlorinated solvents and petroleum hydrocarbons that may be related to burning of waste material at the former fire training site at a University. The University was concerned about potential impacts on the neighboring well field.
Background historic data, including reviews with fire training personnel, was gathered to develop a plan for an environmental investigation of all areas where a release of hazardous substance or petroleum may have occurred. A series of geoprobes and test pits were utilized to determine the horizontal and vertical extent of soil contamination. Specific areas above acceptable regulatory standards were designated for soil excavation and disposal. A series of groundwater monitoring wells were installed and tested. Modeling was initiated to determine groundwater flow patterns, plume migration, and potential impact on the University's well fields. EPSYS developed a remedial action plan to meet state regulatory requirements, which emphasized expedient removal of the soil contamination that presented the greatest environmental and health risk. Soils in designated areas were excavated and removed to approved landfills for disposal and testing was performed to ensure compliance with regulatory standards. The entire project was planned, implemented, and managed by EPSYS.
A total of 417 tons of hazardous waste and 10,000 tons of residual (non-hazardous industrial) were excavated and disposed of in a timely manner, removing a potential source of groundwater contamination. EPSYS completed the site restoration and performed the final compliance sampling. A final report was prepared to document input of the Remedial Action Plan (RAP) and to demonstrate that soils at the site meet statewide health standards. |