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F. SYSTEM PIPING CONTINUED: <br /> Check Code <br /> Box Section <br /> ✓ HSC Piping compatible with material intended to be stored. <br /> 25290.21 c c 11 <br /> 25290. <br /> 23 CCR <br /> 2631(b) Design and construction of piping approved by independent testing organization(e.g. UL). <br /> Piping, including vent lines, sloped toward tanks with minimum 1/4 inch slope per 1 foot of run. <br /> HSC <br /> 25290.1 k Vapor recovery,fill riser, and vent line piping are secondarily contained. <br /> 25290.2�c�&Q) <br /> G. OVERSPILL/OVERFILL PREVENTION: <br /> Check Code <br /> Box Section <br /> 23 CCR Overspill containment having minimum capacity of 5 gallons providPri at each tank fill location. <br /> 2635(b) Manufacturer d F2; t Model '71 C. <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 /> 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 -.11Q. Model �9oO91 Gd <br /> H. CORROSION PROTECTION: <br /> Check Code <br /> Box Section <br /> 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 /> FRP or equivalent non-metallic exterior coatings or coverings <br /> Tank corrosion protection: Sacrificial Anode <br /> 23 CCR <br /> 2635(a)(2) Steel tank with field installed cathodic protection or impressed <br /> / current <br /> v Tie-downs,when used, constructed of non-corrosive material or coated steel. <br /> Revised 07/22/10 7 <br />