This is an eleven-count administrative RCRA-UST Complaint to two federal governmental entities (Puerto Rico Army National Guard and the Army and Air Force Exchange Service), seeking a civil penalty as a result of multiple violations of underground storage tank (UST) requirements at the Camp Santiago federal facility in Salinas, Puerto Rico. The facility is a training center for military activities, and consists of vehicle fueling and maintenance areas. The Respondents, who own and operate five large USTs that store over 81,000 gallons of diesel fuel or gasoline for use in military or other vehicles, committed the following violations: failure to submit accurate tank notification; failure to operate, maintain, inspect, test and keep records of corrosion protection and cathodic protection equipment; failure to have overfill prevention equipment; failure to provide release detection monitoring for tanks and piping and maintain release detection records; failure to conduct annual test of operation of automatic line leak detectors and maintain records of test; and failure to respond appropriately to indications of release. Since Puerto Rico has an approved UST program, the Complaint cites Commonwealth of Puerto Rico regulations which are equivalent to the federal regulations found at 40 C.F.R. Part 280. The Complaint includes a Compliance Order that seeks compliance with the state- authorized UST requirements that are alleged to have been violated at the Camp Santiago Facility.