COMPLIANCE INFO_PRE 2019 - Laserfiche WebLink

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PACIL � BELL FACILITY — UE656 The facility consists of the building with an employee parking lot located to the rear of the building. The entrance to the employee parking lot is on the west side of the building with the exit drive on the east side. The entire area of the property outside of the building is paved with asphalt. The paved surface has an underground storm drainage system that connects to the municipal system The 3,000 -gallon Enviro-Vault aboveground fuel storage tank is a cylindrical concrete vaulted double wall steel tank. The inner tank- is ankis totally enclosed within a bladder to provide corrosion protection as well as an immediate path for an external monitor. The annular space between the primary tank and the secondary is filled with a minimum of six inches of light concrete to provide a minimum two-hour fire protection. The tank is U. L. Listed and is designed to be compatible for fuel storage. All tank penetrations are through the tank top above the fuel level. The primary tank is atmospherically vented through a standard vent tube. The primary and secondary tanks have separate emergency relief vents. The tank is supported on integral steel saddles welded to the exterior secondary containment tank. The steel saddles are bolted to the concrete pad foundation. The foundation installation is consistent with tank manufacturer recommendations. The entire exterior of the tank is visible for inspection. The tank is labeled NO SMOKING and DIESEL on the two ends. No NFPA diamond is installed. The tank fill is provided with spill containment with a hinged locking cover and an overfill device installed in the drop tube. The tank has a float -operated level gauge that provides visual indication of tank- level to a low degree of resolution. The gauge is visible for tank filling operations. A Veeder-Root Tank Overfill Alarm (audible, visual light) is mounted on the adjacent building wall by the fill. The tank is monitored by a Veeder-Root TLS -350 Tank Level Sensing System. The TLS -350 control panel is located inside the emergency generator room. The TLS -350 is remotely monitored at the Pacific Bell Environmental Control Center. The TLS -350 has the following capabilities for this site: Interstitial leak detector Tank level probe High Liquid Level Alarm Overfill Alarm with Audible and Visual Signal mounted on building wall near the tank fill Low Level Alarm Operating status of the generator and run time Two aboveground lines connect the tank with the emergency generator engine for fuel supply and return. The above ground piping is black iron. The supply and return piping is secondarily contained within clear secondary pipe from the valves on top of the tank to the ells and unions outside of the generator enclosure including the sections of flexible pipe. This section is visibly monitored. The short horizontal portion between the tank and the generator enclosure is protected from pedestrian traffic by a welded metal step. 5 of 10