FAILURE TO INSTALL REQUIRED UPGRADES TO 3 USTS (OVERFILL PROTECTION). FAILURE TO CONDUCT PROPER RELEASE DETECTION FOR TANKS AND PRESSURIZED PIPING (3 USTS). FAILURE TO MAINTAIN RELEASE DETECTION RECORDS ( 3 USTS). FAILURE TO PERMANENTLY CLOSE A FOURTH UST WHICH HAD BEEN TEMPORARILY CLOSED FOR MORE THAN 12 MONTHS.