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F. SYSTEM PIPING CONTINUED: <br /> Check pp <br /> Box Section <br /> 8 25290 .1 c 1 Piping compatible with material intended to be stored. <br /> 25290.2 c 1 <br /> 23 CCR <br /> X 2631(b) Design and construction of piping approved by independent testing organization e. . UL). <br /> )3 <br /> Piping, including vent lines,sloped toward tanks with minimum 118 inch slope per 1 foot of run. <br /> 25290.1((k)) Vapor recovery,fill riser, and vent line piping are secondarily contained. <br /> 25290.2(c)&(I) <br /> G. OVERSPILL/ OVERFILL PREVENTION: <br /> Check Code <br /> Box Section <br /> 23 CCR Overspill containment having minimum capacity of 5 gallons provided at each tank fill location. <br /> Manufacturer OPW Model OPW6571 EVRBIEVRL-42 <br /> Approved overfill prevention device provided at each tank fill location. <br /> Choose One of the following methods: <br /> ❑Alert the transfer operator when the tank is 90 percent full by restricting the flow into the tank or <br /> triggering an audible visual alarm <br /> ❑ Restrict delivery of flow to the tank at least 30 minutes before the tank overfills, provided the <br /> 23 CCR restriction occurs when the tank is filled to no more than 95 percent capacity; and activate an <br /> 2635(b)(2) audible alarm at least five minutes before the tank overfills <br /> X Provide positive shut-off flow to the tank when the tank is filled to no more than 95 percent of <br /> capacity. <br /> ❑ Provide positive shut-off of flow to the tank so that none of the fittings located on the top of the <br /> tank are exposed to product due to overfilling. <br /> Manufacturer OPW Model 71SO <br /> H. CORROSION PROTECTION: <br /> Check Code <br /> Box Section <br /> 9 Fiberglass reinforced plastic(FRP) <br /> Piping corrosion protection: ❑ Steel with cathodic protection or impressed current <br /> 23 CCR ❑ Steel isolated from contact with backfill <br /> 2636(b) <br /> 3 FRP or equivalent non-metallic exterior coatings or coverings <br /> Tank corrosion protection: E Sacrificial Anode <br /> 2635(a)(2) -1 Steel tank with field installed cathodic protection or impressed <br /> current <br /> LX Tie-downs,when used, constructed of non-corrosive material or coated steel. <br /> Revised 7/26/2016 7 <br />