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LG 162-2 -5- 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. Question Number H&S Code Citation for USTs Installed On or After July 1, 2003 and Prior to July 1, 2004 Part I H&S Code Citation for USTs Installed On or After July 1, 2004 Part II 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 8 H&S Code §25290.2 H&S Code §25290.1 A. In accordance with H&S Code, Section 25290.1(e), which components of USTs installed on or after July 1, 2004 must be continuously monitored using vacuum, pressure, or interstitial liquid level measurement methods? The interstitial space of the tank and product piping (including fill, vent, and vapor recovery piping), that are beneath the surface of the ground must be maintained under constant vacuum or pressure. Statute also requires that a breach in the primary or secondary containment be detected before the liquid or vapor of the stored substance is released to the environment. Continuous vacuum, pressure, or interstitial liquid level measurement methods can be used to satisfy these California Environmental Protection Agency Zai Recycled Paper