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Project No. 10-1768 AdvancedGeo An Employee-Owned Company Page 15 of 19 5.3.1. Transfer Lines Not In-Service Lines that are not in service for an extended period of time are capped or blank-flanged and marked as to their origin. 5.3.2. Standby Transfer Lines Lines that are on standby for an extended period of time are capped or blank-flanged and marked as to their origin. 5.3.3. Pipe Supports All pipe supports are designed to minimize abrasion and corrosion and to allow for expansion and contraction. Pipe supports are visually inspected during the monthly inspection of the Facility. 5.3.4. Aboveground Piping and Valves All aboveground piping and valves are examined monthly to assess their condition. Inspection includes aboveground valves, piping, appurtenances, expansion joints, valve glands and bodies, catch pans, pipeline supports, locking of valves, and metal surfaces. Waste oil is pumped into an AST from drain pans by employees and monitored during AST filling. Observations are noted on the monthly inspection checklist provided in this Plan. 5.3.5. Underground Piping Underground piping is utilized near the tank farm and dispenser islands. Piping was installed prior to August 16, 2002, within concrete pipe supports. Portions of the underground piping is exposed and is carefully inspected for deterioration on a daily and monthly basis. If corrosion is detected, additional examination and corrective action will be performed. 6.0. FACILITY DISCHARGE RESPONSE This section describes the response and cleanup procedures in the event of an oil discharge. The uncontrolled discharge of oil to groundwater, surface water, or soil is prohibited by state and possibly federal laws. Immediate action must be taken to control, contain, and recover discharged product. For the purpose of establishing appropriate response procedures, this Plan classifies discharges as either "minor" or "major," depending on the volume and characteristics of the material released.