store 18 and the quick serve restaurant 18 are all optional and need not be present in a given fueling environment the fueling islands 16 may have one or more fuel dispensers 32 positioned thereon the fuel dispensers 32 may be for example the eclipse u00ae or encore u00ae sold by gilbarco inc of greensboro n c the fuel dispensers 32 are in electronic communication with the site controller 26 through a lan or the like the fueling environment 10 also has one or more underground storage tanks 34 adapted to hold fuel therein as such the underground storage tank 34 may be a double walled tank further each underground storage tank 34 may include a tank monitor tm 36 associated therewith the tank monitors 36 may communicate with the fuel dispensers 32 either through the site controller 26 or directly as needed or desired to determine amounts of fuel dispensed and compare fuel dispensed to current levels of fuel within the underground storage tanks 34 to determine if the underground storage tanks 34 are leaking the tank monitor 36 may communicate with the site controller 26 and further may have an off site communication link 38 for leak detection reporting inventory reporting or the like much like the off site communication link 28 off site communication link 38 may be through the pstn the internet both.