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SPCC for Antonini Enterprises Lathrop Facility (B) Considering size and complexity of the facility, high liquid level pump cutoff devices set to stop Now at a predetermined tank content level. (C) Direct audible or code signal communication between the tank gauge and the pumping station. (D) A fast response system for determining the liquid level of each bulk storage tank such as digital computers, telepulse, or direct vision gauges or their equivalent. (E) Liquid level sensing devices should be regularly tested to insure proper operation. Note: In order to provide adequate fail-safe engineering, redundancy should be employed. Inventory control and "sticking"are not adequate methods unless a second form of overfill prevention is utilized. AGT 1 and AGT 2 are continuously monitored by a Veeder-Root TLS-300 tank inventory monitoring device. This device allows the user real-time inventory data of both tanks. The device also allows for leak detection monitoring of the interstitial space of the secondary containment of each tank which allows the user monitor for a breach of either interior tank. Prior to resupplying of fuel, Antonini operators can effectively determine the available space in the tank and order and have delivered an appropriate amount of fuel, thereby preventing overfilling. (ix) Observation of disposal facilities for effluent discharges: 112.7(e)(2) Bulk storage tanks(onshore); (excluding production facilities). (ix) Plant effluents which are discharged into navigable waters should have disposal facilities observed frequently enough to detect possible system upsets that could cause an oil spill event. Note: Facilities must indicate what type of backup system is used in the event of equipment malfunction. No facility effluents associated with the AGTs are discharged into waterways, channels, or other conveyances leading to waterways. The only treatment system on- site is associated with the Wash Rack Area and includes the oil/water separator. The wastes associated with this system are monitored and permitted under the City of Lathrop Wastewater Discharge Permit #2012-1. Conditions of the use permit require periodic inspection and reporting to the City of Lathrop. (x)Visible oil leak corrections from tank seams and gaskets: 112.7(e)(2) Bulk storage tanks (onshore); (excluding production facilities). (x) Visible oil leaks that result in a loss of oil from tank seams, gaskets, rivets and bolts sufficiently large to cause the accumulation of oil in diked areas should be promptly corrected. Any visible leaks or evidence of leaks from the fuel tank seams, gaskets, piping, etc., are reported immediately to the Safety Supervisor or Maintenance Manager. The Maintenance Manager will prepare a work order to get the repair performed. Bolts and rivets may be tightened by the maintenance personnel. if seams leak, the tank will be drained and a qualified tank repair contractor will be contacted to make repairs. (xi) Approximate position of mobile or portable oil storage tanks: 112.7(e)(2) Bulk storage tanks(onshore);(excluding production facilities). (xi)Mobile or portable oil storage tanks (onshore) should be positioned or located so as to prevent spilled oil from reaching navigable waters. A secondary means of containment, such as dikes or catchment basins, should be furnished for the largest single compartment or tank. Those facilities should be located where they will not be subject to periodic flooding or washout. -15-