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SA N 10 A Q U I N Environmental Health Department COUNTY ❑ Monitoring system functionality prior to first fuel delivery: Functionality of the monitoring system must be verified to ensure it meets the requirements of CCR Title 23 and California Health & Safety Code Chapter 6.7 (HSC) (functionality and communication of hydrostatic, vacuum, and liquid sensors in tanks, sumps and UDCs). ❑ Leak detector test after first fuel delivery: Leak detector must be tested to confirm that the device can detect a leak of 3 gallons per hour at 10 psi. Leak detector monitored line volumes shall be appropriate for the make and model of the installed leak detectors, and shall be verified at the time of installation. ❑ Monitoring system functionality after first fuel delivery in operating conduction: Functionality of the monitoring system must be verified to ensure it meets the requirements of CCR Title 23 and HSC Chapter 6.7 (functionality of vacuum sensors and vacuum zones communication must be verified). ❑ Receipt of all required documentation prior to final inspection (including but not limited to accurate drawn to scale as-built plans for system monitoring and system components; refer below for a complete list of requirements), and demonstration of automatic shut-down, as applicable. 7. Anchor all USTs using tank anchors as detailed in the permit application and per manufacturer's written install instructions. 8. Install concrete of sufficient thickness over USTs and around sumps and dispensers, according to the manufacturer's written installation instructions and buoyancy calculations. 9. Install all product and vent piping according to manufacturer's written installation instructions; maintain all appropriate piping distances and installation depths. 10. All appropriate test ports must be installed to facilitate frequent routine communication testing (e.g. at the beginning and end of each vacuum zone branch, and inside brine filled sumps, etc.). No additional shut off valves should be installed between the monitored interstitial spaces and their respective sensors. 11. All monitoring system components shall be listed in the State Water Resources Control Board's Local Guidance Letter(LG) 113. 12. All installation and testing shall be in compliance with manufacturer's instructions and CCR 2635 and 2636. 13. All tank top openings that are connected to the primary space of the UST must have secondary containment, audible/visual alarm, and be vapor tight or terminate at grade. 14. Sumps and under dispenser containment must be constructed in a manner to prevent vapors from entering the backfill. 15. All secondary containment must be constructed to prevent water intrusion. 16. The secondary containment system must be continuously monitored as required under HSC 25290.1. 17. Overfill prevention shall satisfy CCR 2635(b)(2)(C) pursuant to the permit application. All appropriate drop tube and tank gauge design calculations shall be provided to the EHD prior to scheduling of the overfill verification inspection. 18. No ball floats shall be installed on vent lines to comply with overfill prevention requirements (Code of Federal Regulations, Title 40, section 280.20(c)) 19. All metal components in direct contact with the ground, such as flexible connectors, swing joints, fittings, clamps, bands, and pumps, shall have adequate corrosion protection. 3 of 4