COMPLIANCE INFO_1988-2007 - Laserfiche WebLink

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CCR,TITLE 23, DIVISION 3, CHAPTER 16, UNDERGROUND STORAGE TANK REGULATIONS CCR, TITLE 23, DLvISION 3, CHAPTER 16, UNDERGROUND STORAGE TANK REGUTATIONS (C) No valves or pumps are installed below grade in the suction line. percent of design operating pressure or pneumatically at 110 percent of design Only one check valve is located directly below and as close as operating pressure. If the calculated test pressure for pressurized piping is less practical to the suction pump; than 40 psi, 40 psi shall be used as the test pressure. The pressure shall be maintained for a minimum of 30 minutes and all joints shall be soap tested. A (D)An inspection method is provided which readily demonstra,.ts failed test,as evidenced by the presence of bubbles,shall require appropriate compliance with subdivisions(A)through (C) above. repairs and retesting. If there are no manufacturers guidelines,secondary containment systems shall be tested using an applicable method specified in an (b) All corrodible underground piping, if in direct contact with backfill material, industry code or engineering standard. Suction piping and gravity flow piping shall be protected against corrosion.Piping constructed of fiberglass-reinforced which cannot be isolated from the tank shall be tested after installation in plastic,steel with cathodic protection, or steel isolated from direct contact with conjunction with an overfilled volumetric tank integrity test,or other test backfill, fulfills this corrosion protection requirement. Cathodic protection shall method meeting the requirements of section 2643(0,if approved by the local meet the requirements of section 2635(a)(2). agency. (c) Underground primary piping shall meet all of the following requirements: (f) Underground piping with secondary containment shall be equipped and monitored as follows: (1) Primary piping in contact with hazardous substances under normal operating conditions shall be installed inside a secondary containment (1) The secondary containment system shall be equipped with a system which may be a secondary pipe,vault,or a lined trench. All continuous monitoring system which meets the requirements of secondary containment systems shall be sloped so that all releases will section 2643(f) and which is connected to an audible and visual alarm flow to a collection sump located at the low point of the underground system. piping. (2) Automatic line leak detectors shall be installed on underground (2) Primary piping and secondary containment systems shall be installed pressurized piping and shall be capable of detecting a 3-gallon per In accordance with an industry code of practice developed in hour leak rate at 10 psi within 1 hour with a probability of detection accordance with voluntary consensus standards. The owner or of at least 95 percent and a probability of false alarm no greater than 5 operator shall certify that the piping was installed in accordance with percent. Compliance with these standards shall be certified in the above requirements of section 2635(d). The certification shall be accordance with section 2643(17 of Article 4. made on the"Certification of Compliance for Underground Storage Tank Installation Form C" (see Appendix V). (3) Other monitoring methods may be used in lieu of the requirement in subdivision(2) if it is demonstrated to the satisfaction of the local (d) Lined trench systems used as part of a secondary containment system shall be agency that the alternate method is as effective as the methods designed and constructed according to a code of practice or engineering otherwise required by this section. A continuous monitoring system standard approved by a state registered professional engineer. The following as described in subdivision (1),which shuts down the pump in requirements shall also apply: addition to:activating the alarm system,satisfies the automatic line leak detector requirement of subdivision(2). (1) All trench materials shall be compatible with the substance stored and evaluated by an independent testing organization for their (4) Monitoring shall be conducted on all underground pressurized piping compatibility or adequacy of the trench design,construction, and with secondary containment at least annually at a pressure designated application. by the equipment manufacturer,provided that the method is capable of detecting a minimum release equivalent to 0.1 gallon per hour (2) The trench shall be covered and capable of supporting any expected defined at 1.50 percent of the normal operating pressure of the vehicular traffic. product piping system at the test pressure with at least a 95 percent probability of detection and not more than a 5 percent probability of (e) All new primary piping and secondary containment systems shall be tested for false alarm. This requirement is waived if the criteria in subsection(g) tightness after installation in accordance with manufacturer's guidelines. of this section are met. Primary pressurized piping shall be tested for tightness hydrostatically at 150 3-17 3-18