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Wednesday, June 02, 2004 11:40 AM Art Gomez 510-494-1596 p15 <br /> Monitoring Systems <br /> Alternative Tank-Monitoring Systems <br /> Liquid-Sensor Monitoring Systems Vacuum or Air-Pressure Monitoring Systems <br /> (Dry Annular Space) (Dry Annular Space) <br /> Typical configuration for an electronic sensor. Typical configuration for an electronic sensor. <br /> Concrete Traffic Pad Concrete Traffic Pad <br /> Riser Pipe Riser Vacuum orAir- <br /> Pipe—� Presssure Sensor <br /> Monitor a--Monitor <br /> Fitting - Fitting <br /> Dry Annular Space <br /> Liquid-Sensing Probe <br /> Note: Interstice can be vented to atmosphere or Notes: <br /> sealed. 1.Maximum continuous positive air pressure is 3 psi. <br /> 2.Maximum continuous vacuum of 3" mercury(1.5 psi <br /> maximum) must be maintained. <br /> Installation <br /> The manufacturer's current Installation Manual and Operating <br /> Guidelines, covering installation, operation and maintenance <br /> of the monitoring system is available from Xerxes.A copy of <br /> the installation manual will be sent with each shipment. <br /> Note: The monitoring system must be installed in accordance <br /> with the manufacturer's instructions, and all federal, state and <br /> local laws and regulations. without a monitoring system,a <br /> leak may go undetected. <br />