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i4 y <br /> n t;L <br /> CCP,TITLE 23.DIVISION 3 CHAPTER 16 DERGROUND STORAGE TANK REGULATIONS <br /> (3) Other monitoring methods may be used in lieu of the requirement in <br /> subdivision(2) if it is demonstrated to the satisfaction of the Focal agency <br /> that the alternate method is as effective as the methods otherwise required <br /> by this section. A continuous monitoring system as described in <br /> subdivision(1), which shuts down the pump in addition to activating,the <br /> alarm system, satisfies the automatic line leak detector requirement of <br /> subdivision <br /> (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 <br /> ✓✓✓ of the normal operating pressure of the product piping system at the test <br /> pressure with at least a 95 percent probability of detection and not more <br /> than a 5 percent probability of false alarm. This re uirement is waived if <br /> the criteria in subsection (g) of this section are met. <br /> (g) Underground pressurized piping which meets all of the following requirements <br /> satisfies the annual tightness test requirement specified in subsection (f)(4): <br /> (1) The secondary containment system is equipped with a continuous <br /> monitoring system. The leak detection device may be located at the pump <br /> sump if the piping slopes back to this paint. <br /> (2) A continuous monitoring system is connected to an audible and visual <br /> alarm system and the pumping system. <br /> (3) A continuous monitor shuts down the pump and activates the alarm system <br /> when a release is detected. <br /> (4) The pumping system shuts down automatically if the continuous <br /> monitoring system fails or is disconnected. <br /> (5) The requirements of subdivisions (3) and-(4) do not apply to an emergency <br /> generator, provided the monitoring system is checked at least daily. <br /> Authority: Health and Safety Code 25299.3 and 25299.7 <br /> Reference: Health and Safety Code 25281, 25291, 25299; <br /> 40 CFR 280.20, 80.40-280,45 <br /> 31 <br />