THE NAVY IS A LARGE QUANTITY GENERATOR OF AND ENGAGES IN THE STORAGE OF HAZARDOUS WASTES AT ITS FACILITY IN PATUXENT RIVER, MARYLAND. IN ADDITION, THE NAVY MAINTAINS SEVERAL UNDERGROUND STORAGE TANKS (USTS) AT TWO LOCATIONS ON THE FACILITY. VIOLATION OF RCRA SUBTITLE C HAZARDOUS WASTE MANAGEMENT AND STORAGE REQUIREMENTS, INCLUDED: FAILURE TO MAKE A WASTE DETERMINATION; FAILURE TO MAINTAIN ADEQUATE AISLE SPACE BETWEEN STORED DRUMS; FAILURE TO INSPECT STORED DRUMS WEEKLY; FAILURE TO MAKE SURE ACCUMULATION START DATES ARE MARKED AND VISIBLE ON STORED HAZARDOUS WASTE; FAILURE TO CLEARLY MARK HAZARDOUS WASTE ; FAILURE TO MAINTAIN SATELLITE ACCUMULATION AREAS AT THE POINT OF GENERATION; FAILURE TO KEEP CONTAINERS CLOSED, EXCEPT WHEN ADDING OR REMOVING WASTE; FAILURE TO LABEL UNIVERSAL WASTE WITH THE DATE THAT IT BECAME A WASTE. IN ADDITION, VIOLATIONS OF RCRA SUBTITLE I LEAK DETECTION REQUIREMENTS FOR USTS, INCLUDED; FAILURE TO MAINTAIN ADEQUATE RELEASE DETECTION FOR USTS; FAILURE TO MAINTAIN PROPER SPILL/OVERFILL PROTECTION AROUND USTS; FAILURE TO MAINTAIN RECORDS OF RELEASE DETECTION MONITORING FOR PRESENTATION TO EPA INSPECTORS FOR REVIEW.