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(Revised from October 7, 2011 version) <br /> California Code of Regulations, Title 23, Division 3, Chapter 16, Section 2636 <br /> (f)(1) All secondary containment, including under-dispenser containment, and <br /> under-dispenser spill control or containment systems shall be equipped with a <br /> continuous monitoring system that either activates an audible and visual alarm <br /> or stops the flow of product at the dispenser when it detects a leak. <br /> (f)(2) Automatic line leak detectors shall be installed on underground <br /> pressurized piping and shall be capable of detecting a 3-gallon per hour leak rate <br /> at 10 psi within 1 hour with a probability of detection of at least 95 percent and <br /> a probability of false alarm no greater than 5 percent, and shall restrict or shut <br /> off he flow of product through the piping when a leak is detected. <br /> (0(4) Monitoring shall be conducted on all underground pressurized piping with <br /> secondary containment at least annually at a pressure designated by the <br /> equipment manufacturer, provided that the method is capable of detecting a <br /> minimum release equivalent to 0.1 gallon per hour defined at 150 percent of the <br /> normal operating pressure of the product piping system at the test pressure with <br /> at least a 95 percent probability of detection and not more than a 5 percent <br /> probability of false alarm. <br /> (f)(5) Continuous monitoring systems as described in subdivision(f)(1) satisfy <br /> the annual tightness testing requirement of subdivision(f)(4) if both of the <br /> following conditions are met: <br /> (A)The monitoring system shuts down the pump or stops the flow of product at <br /> the dispenser when a leak is detected in the under- dispenser containment. <br /> (B) The monitoring system for all product piping other than that contained in <br /> the under-dispenser containment is fail safe, and shuts down the pump when a <br /> leak is detected. <br /> Corrective Action: Immediately install a line leak detector capable of detecting a 3- <br /> gallon per hour leak rate at 10 psi, re-activate the tank system by placing fuel back into <br /> the empty tank, and contact EHD to verify functionality of the monitoring system. <br /> Please submit an application to install a line leak detector to the EHD by December <br /> 10, 2011. <br /> If you have any questions,please contact Jeffrey Wong, Senior RENS, at(209)468- <br /> 0335. <br /> Air,e- 11-11— <br /> 04� <br /> Jeffrey Wong, Senior RENS <br /> Underground Storage Tank Program <br />