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+04/26/.1999 07:11 7146705420 EHS ARCO LA PALMA PAGE 06 <br />MONITORING AND RESPONSE PLAN X <br />ARCO PRODUCTS CO ANY FACILITY WITH <br />SECONDARY CONTAINMENT OF <br />UNDERGROUND STORAGE TANKS & PRODUCT LINES WITH <br />SUBMERSIBLE PUMP SHUTDOWN <br />ARCO Facility: 4932 Address: 16 East Harding Way <br />Stockton, C,4 95204 <br />This plan is designed to meet the monitoring and response requirements of Section 2632., Article 3, <br />Title 23, CCR.. <br />1- <br />MONITOPUNG EQUIPMENT <br />Secondarily contained storage tanks and lines at this facility are monitored by a continuous <br />electronic leak detection system which consists of an alarm panel, sensors and associated <br />electronics. Liquid sensors are installed in the annular space of each double wall tank and <br />product line piping sump. Whenever a sensor detects the presence of a liquid there is both a <br />visual and audible alarm at the control panel. In addition., the continuous MODitor on the <br />product piping system will shut down the pump and activate the alarm system when a <br />release is detected or if the continuous product piping monitoring system fails or is <br />disconnected, the pumping system will shut down. <br />Automatic line leak detectors are installed on the secondarily contained pressurized product <br />piping. The line leak detector will detect a loss of pressure in the product lines and restrict <br />the flow of product. <br />2. MAINTENANE SCHEDULE OF MONITORING E UIP ENT <br />The continuous electronic leak detection system including line leak detectors will be <br />inspected according to the manufacturer°s instructions by an outside contractor once during <br />each calendar year. <br />3. ROUTINE MONITORING PROCEDURE <br />On a daily basis the facility operator shall: <br />A. Inspect the control panel for visual and audible alarm signals to confirm that <br />the unit is operating, <br />B. Inspect island and tank fill areas for signs of spillage or petroleum sheen. <br />