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04/26/1999 07:11 <br />7146705420 <br />EHS ARCO LA PALMA <br />MONITORING AND RESPONSE PLAN X <br />.ARCO PRODUCTS COMPANY FACILITY WITH <br />SECONDARY CONTA MENT OF <br />UNDERGROUND STORAGE TANKS & PRODUCT LINES WITH <br />SUBMERSIBEE PUMP SHUTDOWN <br />ARCO Facility: 4932 Address: XGEast Harding We <br />Stockton, CA 95204 <br />PAGE 06 <br />This plan is designedto meet the monitoring and response requirements of Section 2632, Article 3, <br />Title 23, CCR. <br />1. MONITOP NG EQUIPMENT <br />Secondarily contained storage tanks and lines at this facility are monitored by a contilluous <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 eachdouble 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 monitor 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. MAINTENANCE SCHEDULE OF MONITORING EQUIPMENT <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 durit1g <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 con.fxrn-i that <br />the unit is operating. <br />B. Inspect'i.5land and tank fill areas for signs of spillage or petroleum sheen. <br />