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MONITORING PROCEDURES FOR DOUBLE WALL TA, S <br /> TANK MONITORING <br /> EQUIPMENT AT THIS FACILITY: Veeder-Root TLS-350 Series 8470 <br /> The Underground storage tanks are monitored using an approved continuous electronic monitoring <br /> system (see below). This system is able to detect the presence of a leak in the primary as well as <br /> secondary containment through the use of an annular space and submerged sensor. If an alarm or failure <br /> condition occurs, the Operator will call Chevron Maintenance Dispatch at 800-423-3528 immediately. The <br /> Operator will then record the alarm condition on a log along with the investigative/corrective action steps <br /> followed to resolve the situation. Response to the alarm condition will occur within 24 hours. <br /> If the alarm condition is NOT the result of an equipment failure, then Chevron will repair the tank system <br /> in accordance with all local and state requirements. If the alarm condition is the result of an equipment <br /> failure, Chevron will repair the equipment as required and ensure that it is functioning properly. <br /> MONITORING SYSTEM <br /> INTERSTITIAL MONITOR: X LIQUID FLOAT SWITCH SENSOR <br /> EQUIPMENT AT THIS FACILITY: Veeder-Root TLS-350 Annular Space Monitor Series 794390-409 <br /> MAINTENANCE CONTRACTOR: Chevron Maintenance Dispatch <br /> The Operator or a designated employee performs visual monitoring of the tank monitor alarm box daily. <br /> Please see the attached site map for the location of all equipment and forms for keeping monitoring <br /> records at the site. The Operator will also perform inventory reconciliation according to the procedure <br /> outlined in the Inventory reconciliation section of this plan. <br /> The electronic monitoring devices are maintained according to manufacturer's recommendations. <br /> Training will be given which includes information regarding: how to self test the electronic monitoring <br /> equipment, what the equipment monitors, how to tell when the alarm goes off, how to perform inventory <br /> reconciliation, record keeping requirements and procedures to follow in the event of alarm activation, <br /> leak, suspected leak, or other emergency. All training is in accordance with the equipment manufacturer <br /> recommendations. <br /> See also"Chevron Leak Response Plan" <br /> Chevron Emergency Information Center(CEIC) 1-800-231-0623 <br /> Chevron Maintenance Dispatch 1-800-423-3528 <br /> 3 <br />