DPRA conducted a Phase I ESA then advanced over 70 soil probes, installed 30 monitoring wells, and conducted vapor and groundwater receptor surveys as part of the site investigation prior to site redevelopment. DPRA prepared a Remedial Action Plan recommending excavation and vapor extraction/air sparging and, following agency approval, prepared bid specifications, reviewed bids, and selected remedial contractors. DPRA performed excavation oversight, collected confirmation samples, and installed and operated the vapor extraction/air sparging systems. DPRA obtained a Certificate of Completion on schedule, allowing site redevelopment to occur as planned.

DPRA reviewed construction plans and conducted a Phase I ESA to identify sites with the potential to impact soil and groundwater along a proposed roadway corridor. Following the initial due diligence effort, DPRA mobilized to the project site to advance soil probes adjacent to impacted sites and identify areas of contaminated soil and groundwater. In addition, DPRA prepared an Impacted Soil Contingency Plan that detailed contaminated soil screening, handling, and disposal methods for the contractor to follow during roadway construction. DPRA staff were on site to screen and segregate soil during construction and prepared a final report summarizing the soil handling and disposal techniques. Finally, DPRA obtained reimbursement for investigation and remediation costs for its client from a state petroleum fund.