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SWRCB JUNE 2008 <br /> Monitoring Requirements of Double-walled Piping Installed Before July 1, 2004 <br /> 7 <br /> rThe <br /> ,. �.; .,�_,, w ,G'Secondary llowing may beContainment shall bected in lieu of the Continuous monitoring Continuous interstitial Continuous <br /> equipped with . gph piping test system that activates monitoring for piping monitoring for <br /> Continuous an audible and visual and UDC that activates piping and <br /> monitoring system Continuous monitoring alarm. an audible and visual UDC that <br /> that activates an system shuts down the CCR 26360(6) alarm. activates an <br /> audible and visual pump or stops the flow of audible and <br /> product at the dispenser visual alarm. <br /> alarm. <br /> CCR 26360(1) when a leak is detected in OR OR <br /> the UDC; <br /> OR CCR 26360(5)(A) Continuous monitoring Continuous monitoring <br /> Continuous system that stops the for both the piping and OR <br /> AND flow of product when a UDC Stops the flow at <br /> monitoring system ® Continuous monitoring leak is detected. the dispenser when a Continuous <br /> that stops the flow of system for all product CCR 26360(6) leak is detected. monitoring for <br /> product at the piping located outside the <br /> both the piping <br /> dispenser when a UDC is fail safe and shuts AND CCR 26360(1) and UDC stops <br /> leak is detected; down the pump when a • Continuous monitoring the flow at the <br /> CCR 26360(1) leak is detected. system checked at least dispenser <br /> CCR 2636(0(5)(B) daily (maintain inspection when a leak is <br /> AND log); detected. <br /> • A 3.0 gph LLD; CCR 26360(6) <br /> CCR 26360(2) <br /> AND CCR 2636 0(1) <br /> AND •An annual 0.1 gph piping <br /> • An annual 0.1 gph test. <br /> piping test. CCR 26360(4) <br /> CCR 26360L42 <br /> Page 6 of 7 <br />