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nUnoir nroental Health Department <br /> F . SYSTEM PIPING CONTINUED . <br /> Check Code <br /> Box Section <br /> HSC Piping compatible with material intended to be stored . <br /> 25290 . 1 (c 1 <br /> 25290 . 2 c 1 <br /> 23 CCR <br /> t 2631 ( b) Design and construction of piping approved by independent testing organization (e . g . UL) . <br /> >L Piping , including vent lines , sloped toward tank(s) with minimum 1 /8 inch slope per 1 foot of run . <br /> 2 290 . 1 k Vapor recovery , fill riser, and vent line piping are secondarily contained . <br /> xj 25290 . 2 (c & 0) <br /> G . OVERSPILL/ OVERFILL PREVENTION . <br /> Check Code <br /> Box Section <br /> 23 CCR Overspill containment having minimum cap of 5 gallons provided at each tank fill location . <br /> Xj 2635(b) Manufacturer oPN Model <br /> Approved overfill prevention device provided at each tank fill location . <br /> Choose One of the following methods : <br /> e 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 /> (, Pr vide positive shut-off flow to the tank when the tank is filled to no more than 95 percent of <br /> capacity . <br /> n 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 ' - Model r fJt <br /> H . CORROSION PROTECTION , <br /> Check Code <br /> Box Section <br /> X Fiberglass reinforced plastic (FRP) <br /> Piping corrosion protection : i Steel with cathodic protection or impressed current <br /> X 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 : H Sacrificial Anode <br /> 23 CCR ❑ Steel tank with field installed cathodic protection or impressed <br /> 2635 (a)(2) P p <br /> current <br /> K Tie-downs , when used , constructed of non-corrosive material or coated steel . <br /> 7 of 8 <br />