Project Profile: Baywood Gas Mart Fuel System Removal & Replacement
Construction began in the last week of February and included:
- Removing, closing and disposing of three 10,000-gallon, single-wall fiberglass tanks containing regular unleaded, premium unleaded and diesel fuel
- Fulfilling all regulatory requirements to perform environmental testing of soil and groundwater in the tank basin (the site was free of contamination)
- Removing and disposing of four existing fuel dispensers and associated piping, electrical and under dispenser containment (UDC)
- Removing the existing canopy and footing
- Installing one 20,000-gallon double-wall fiberglass UST to hold regular unleaded fuel, and one split 20,000-gallon double-wall fiberglass UST to hold premium unleaded gasoline and diesel fuel
- Installing four new dispensers, under dispenser containment, point-of-sale system, conduits, electrical wiring and leak detection system, and commissioning the new systems
- Installing a wider, taller canopy to accommodate larger vehicles, and associated footings
- Performing Enhanced Leak Detection (ELD) on piping before and after backfilling, done by CGRS ELD team
Given the gas station is near to both the Petaluma River and San Pablo Bay, the Compliance team was prepared to encounter groundwater when it excavated the tank basin. The team ended up pumping 18,000 gallons of groundwater into holding tanks over three days before installing the new tanks. CGRS tested the water for contaminants and treated it per state standards before discharging it into the sewer system.
The old fiberglass tanks were degassed, triple rinsed and demolished per Title 23 requirements. A certificate of destruction was provided to the California Unified Program Agency (CUPA) and to the owner.
The fuel system passed inspections and received the necessary permits for the team to fire it up the week of April 12, so it’s ready to go when the owner re-opens the station as Baywood Gas Mart.