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F. SYSTEM PIPING CONTINUED: <br /> Check Cod <br /> Box Sec on <br /> l� HSC Piping compatible with material intended to be stored. <br /> 2529902 c 1 <br /> O� 23 CCR <br /> 2631(b) Design and construction of piping approved by independent testing organization e. . UL). <br /> Piping,including vent lines,sloped toward tank(s)with minimum 1/4 inch sloe per 1 foot of run. <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 Cod.9 <br /> Box 8Sac on <br /> / 23 CCR Overspill containment having minimum capacity of 5 gallons provided at each tank fill location. <br /> [7 2635(b) Manufacturer 0.F Model <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 alar <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 /> d 2635(b)(2) audibi alar 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 shutoff 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 0 ) Model G t <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 /> Z 23 CCR ❑ Steel isolated from contact with backfill <br /> 2636(b) <br /> RP or equivalent non-metallic exterior coatings or coverings <br /> Tank corrosion protection: 0 Sacrificial Anode <br /> 23 CCR ❑ Steel tank with field installed cathodic protection or impressed <br /> 2635(x)(2) current <br /> ❑ Tie-downs,when used,constructed of noncorrosive material or coated steel. <br /> Revised 8/1/11 7 <br />