Fuel System / Design - Sales - Construction. Turn-key diesel fuel systems for emergency generators supplying critical power back to hospitals, data and telecommunication centers. DDC FUEL SERVICES supplies complete systems - aboveground or underground fuel or chemical storage tanks, controls, lubrication, waste oil, fuel oil, unleaded fuel systems, tank monitoring, leak detection and equipment lifts. We can either assist in the design or design the system for you. Complete Fuel System Contractor: Design # Construction # Service Fleet Fueling Systems Emergency Generator Fuel Systems Boiler Fuel Systems Lubrication Systems Fuel Filtration System Tank Monitoring and Leak Detection Fuel Testing and Filtering Fuel System Service Annual Maintenance Contracts - Inspection of fuel system - Fuel Testing - Filtering