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LG 162-2 - 6 - As 6 -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 25290.2(d) include, but are not limited to, riser piping and access points on top of the tank, which provide access to the primary containment of the tank and may be in contact with vapors of the stored product. 10. For USTs installed on or after July 1, 2003 and prior to July 1, 2004, is an annual line tightness test on pressurized piping required? Yes. As for all USTs installed since January 1, 1984, the requirement for "underground pressurized piping ... (to) be tightness tested annually" also applies to USTs installed on or after July 1, 2003 and prior to July 1, 2004. [H&S Code, §25290.2(g); H&S Code, §25291(f).] The annual line tightness testing requirement may be met by satisfying the criteria specified in CCR, Title 23, Section 2636(g)(1- 5). PART II: USTs INSTALLED ON OR AFTER JULY 1, 2004. In addition to the requirements discussed below (Questions A-D of Part II), USTs installed on or after July 1, 2004 are subject to all of the installation and monitoring requirements presented in the responses to Questions 1-8 of Part I. For USTs installed on or after July 1, 2004, references to the "July 1, 2003" date in Part I should be substituted with "July 1, 2004." The H&S Code citations relevant to USTs installed on or after July 1, 2003 and July 1, 2004 are provided in the table below. Note that Questions 9 and 10 of Part I do not apply to USTs installed on or after July 1, 2004. H&S Code Citation for USTs H&S Code Citation for Installed On or After July 1, 2003 and USTs Installed Question Prior to July 1, 2004 (Part On or After July 1, 2004 (Part Number 1) 11) 1 H&S Code §25290.2(a) H&S Code §25290.1(a) 2 3 H&S Code §25290.2(c)(3) H&S Code §25290.1(c)(3) 4 H&S Code §25290.20) H&S Code §25290.1(k) 5 H&S Code §25290.20) H&S Code §25290.1(k) 6 H&S Code §25290.2(i) H&S Code §25290.10) 7 H&S Code §25290.2 H&S Code §25290.1 California Recycled Paper Environmental Protection Agency