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• <br />LG 162-2 <br />-3- <br />• <br />4. Has the definition of "pipe" changed for USTs installed on or after July 1, <br />2003? <br />Yes. Vent piping, vapor recovery piping, and fill pipes that are beneath the <br />surface of the ground and installed in conjunction with a UST system on or after <br />July 1, 2003 are regulated "pipe" and are subject to secondary containment <br />requirements. [H&S Code, §25290.20).] <br />5. Are the piping exemptions provided in H&S Code, Section 25281.5(a)(4) and <br />(b)(1), and the secondary containment exemptions in. Section 2636(a), Title <br />23, CCR applicable to USTs installed on or after July 1, 2003? <br />No. The piping exemptions provided in H&S Code, Section 25281.5(a)(4) and <br />(b)(1), are not applicable for UST systems installed on or after July 1, 2003. <br />[H&S Code, §25290.20).] Additionally, the secondary containment exemptions <br />(for vent and tank riser piping, vapor recovery piping, and safe suction piping) in <br />Section 2636(x), Title 23, CCR are not applicable for USTs installed on or after <br />July 1, 2003. There are no exemptions from the secondary containment <br />requirement for USTs installed on or after July 1, 2003. <br />6. What type of post -installation testing is required for USTs installed on or <br />after July 1, 2003, and when should the testing be completed? <br />The UST must be tested after installation, and before it is placed into use, using <br />one of the following three test methods: (1) enhanced leak detection (ELD), (2) <br />an inert gas pressure test certified by a third -party and approved by the State <br />Water Board, or (3) a test method deemed equivalent to ELD and approved by <br />the State Water Board in regulation. [H&S Code, §25290.2(i).] <br />As of the date of this letter, two tests have been determined to meet the ELD <br />performance criteria and are allowable for post -installation testing: <br />Vendor <br />Test Method <br />Praxair Services, Inc. <br />Enhanced Tracer Tight@ <br />CGRS, Inc. <br />iota® VaporTite - V005 <br />Both ELD test methods can be used when there is no fuel in the system. The <br />Enhanced Tracer TightO test may also be conducted with fuel in the UST. To <br />conduct Enhanced Tracer Tight& testing with fuel, the owner or operator should <br />first obtain approval from the local agency to have fuel delivered to the UST. <br />Prior to approving a fuel delivery, the local agency may need to verify that all <br />pertinent installation requirements have been met. A UST system should not be <br />put into service until the facility has been issued a valid operating permit by the <br />local agency. <br />California Environmental Protection Agency <br />ZC Reciried Payer <br />