Petroleum ProSource provides regulatory, emergency response, risk and contamination assessment, and remedial design services to the oil and gas industry including: Management of underground storage tanks (USTs) including permitting emergency response, site investigation and containment assessments, corrective action plans/closures, and operation and maintenance of remedial systems Soil, surface water, groundwater and air sampling Groundwater assessment and remediation Impacted soil removal/disposal and on-site treatment Site closures/remediation Sensitive area determinations PCB assessment and remediation Mercury, chromium and other metal assessment and remediation Asbestos surveys and abatement management Spill response Remedial system construction, operations, and maintenance Ground penetrating radar and geophysical surveys Litigation support	PROJECTS   Xcel Energy, Aldrich Substation Minneapolis, Minnesota ProSource conducted an investigation and implemented remediation of the Aldrich Substation site in accordance with the MPCA VIC program. The site provided the majority of the downtown Minneapolis electrical needs for approximately 75 years. Work at the site included a detailed investigation of previous transformer oil spills evaluation of impacts to soil and ground water.