Replace 7 existing Gas/Diesel Fuel Systems located at Big Spring, Alley Spring, Round Spring, Akers, Pulltite, Shawnee Shop and Powdermill areas. The new equipment will be multiple double-walled concrete ASTs with interstitial monitoring systems, electronic inventory control measures and audible overfill alarms. All new fuel systems will be replaced on the existing footprint, with the exception of Big Springs, which will be relocated close to the Old Fire Cache within the Big Springs developed area.