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SAN _J O A Q U I N Environmental Health Department <br /> COUNTY— <br /> F. SYSTEM PIPING CONTINUED: MAY 2`� 2p18 <br /> Check CC <br /> Box Section EN���ONM TMENT <br /> HEA1- <br /> HSC Piping compatible with material intended to be stored. <br /> � 252902 c t <br /> 23 CCR <br /> 2631(b) Design and construction of piping approved by independent testing or anizatlon e. . UL). <br /> Pi in , includin vent lines,slo ed toward tank(s)with minimum 1/8 inch slope per 1 foot of run. <br /> 25290.1((k)) Vapor recovery, fill riser, and vent line piping are secondarily contained. <br /> IX 25290.2(c)&(j) <br /> G. OVERSPILL/ OVERFILL PREVENTION: <br /> CheckC <br /> Box Rection <br /> 23 CCR Overspill containment having minimum capacity of 5 gallons provided at each tank fill location. <br /> [X 2635(b) Manufacturer OPW Model P711-EVR <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 /> X 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 OPW Model 71SO-410C <br /> H. CORROSION PROTECTION: <br /> Check code <br /> Box Section <br /> ,lr Fiberglass reinforced plastic(FRP) <br /> Piping corrosion protection: ❑ Steel with cathodic protection or impressed current <br /> * 23 CC ❑ Steel isolated from contact with backfill <br /> WFRP or equivalent non-metallic exterior coatings or coverings <br /> Tank corrosion protection: ❑ Sacrificial Anode <br /> * 2635(a)(2) ❑ Steel tank with field installed cathodic protection or impressed <br /> current <br /> Tie-downs,when used,constructed of noncorrosive material or coated steel. <br /> 7 of <br />