Cardno stewards the facility-wide corrective action implementation and hazardous waste land treatment unit monitoring under a petroleum refinery’s hazardous waste permit.
Cardno has maintained compliance with the refinery’s hazardous waste permit by building out, operating, and maintaining multiple remediation systems as part of the facility-wide corrective action. This has relied heavily on fostering relationships with and between the refinery and the regulatory agency to reach consensus on the most effective and efficient path forward.
To install groundwater pumping systems, Cardno tested drilling techniques and took extra precautions during drilling to reduce the hazard of impacting subsurface structures and allow refinery operations to continue uninterrupted.
Cardno operates the systems to remove hydrocarbons and non-aqueous phase liquids (NAPLs) and installed an air sparge system to remove petroleum hydrocarbons in soil and groundwater to prevent harmful concentrations of benzene from entering the adjacent scenic river, used locally for drinking water.