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LG 162-2 - 4 - If 4 -If the results of post-installation testing indicate that the UST system is leaking liquid or vapor, the owner or operator must take appropriate actions to correct the leakage, and retest the system using the same approved test method until the system is no longer leaking liquid or vapor. 7. What requirements apply to a UST installation if installation started prior to July 1, 2003, but is not completed until after July 1, 2003? If the tank and associated piping are not placed in the ground prior to July 1, 2003, the UST is subject to the new installation and monitoring requirements of H&S Code, Section 25290.2. [H&S Code, §25290.2.] As always, the local agency must have approved the installation plan prior to placement of the tank and associated piping in the ground. Please note the following for a UST placed in the ground prior to July 1, 2003, following approval of the installation plan by the local agency. Such a UST is not subject to the new installation and monitoring requirements of H&S Code, Section 25290.2. However, the owner/operator of that UST system is required to perform a one-time ELD test on or before January 1, 2005, if the UST system is located within 1,000 feet of a public drinking water well. [H&S Code, §25290.2(i)(3); H&S Code, §25292.5(a) and (b).] 8. Does a repair or modification to a UST, NOT installed in accordance with H&S Code, Section 25290.2, subject the UST to the requirements of this section? No, not unless the tank is replaced. USTs only become subject to H&S Code, Section 25290.2 when the tank is replaced. Therefore, for USTs installed prior to July 1, 2003, replacement of spill containment, sumps, product piping, vapor recovery piping, or vent piping would not subject the component or the UST system to the new installation and monitoring requirements of H&S Code, Section 25290.2. 9. What components of USTs installed on or after July 1, 2003 and prior to July 1, 2004 are required to be monitored in accordance with H&S Code, Section 25290.2(d)? As for all USTs installed since January 1, 1984, USTs installed on or after July 1, 2003 and prior to July 1, 2004 must also be equipped with a continuous monitoring system "capable of detecting the entry of the hazardous substance stored in the primary containment into the secondary containment." [H&S Code, §25290.2(d); CCR, §2630(d).] All sumps, UDCs, and the interstitial spaces of tanks and piping (including product, vent, vapor recovery, and fill pipe) must have sensors that are capable of detecting liquid releases from the primary containment. Components subject to the monitoring requirement of Section California Environmental Protection Agency Zai Recycled Paper