DPRA investigated and cleaned up over 500 petroleum release sites in the past 15 years throughout the United States. A majority of these sites involve underground storage tank releases at gasoline service stations. These investigations are completed using a standard risk-based approach. This approach involves defining the extent and magnitude of the petroleum release, conducting vapor, groundwater, and surface water receptor surveys, evaluating the risk posed by the soil and groundwater contamination, and preparing a Remedial Investigation Report summarizing the results of the investigation. When necessary, cleanup technologies are evaluated and implemented. DPRA’s clients for these services include private companies such as BP Products (formerly Amoco Oil Company), SuperAmerica, Union Pacific Resources, Murphy Oil Company, Erickson Oil Products, Holiday, and Fleming Companies, along with public entities in state, county, and city government.

DPRA prepared Operation, Maintenance, and Management (OMM) Plans for aboveground and underground storage tanks at more than 100 facilities across the country and provided training to ensure their compliance with the local, state, and federal regulatory requirements for their regulated tank systems. The OMM Plans include applicable operation and maintenance information and required logs of observation. In addition, DPRA developed a hands-on training specific to the types of tank systems installed at the facilities. The training included a PowerPoint presentation and an outdoor demonstration of an existing tank system and its components and inspection/maintenance procedures. The training was developed to encourage participation by facility personnel and was developed in accordance with client policies and standards.