Laserfiche WebLink
c. Re-configure primary and secondary piping between point where it daylights (at <br /> building) and supply piping connection point using petroleum-rated fiberglass piping. . <br /> Install new reducer test boot. <br /> d. Pressure test re-configured secondary containment piping. <br /> e. If piping passes pressure testing, slide back reducer test boot to expose opening into <br /> secondary containment piping. <br /> f. If test fails, additional excavation will be required for complete piping replacement and a <br /> revised work plan will be submitted. <br /> 6. Hydraulic Oil Tank Piping Sump <br /> a. Because sump and secondary containment piping cannot be isolated, perform pressure <br /> test on both as a single unit. <br /> b. Install air hose connection, valve, and pressure gauge in top of existing sump cover. <br /> c. Seal interface between sump and sump cover using T"Bostik sealant. <br /> d. Pressurize sump and secondary piping at 3-5 PSI for 1-hour.. <br /> e. If sump and piping pass, remove gauge assembly and T""Bostik sealant from cover. Plug <br /> gauge hole. <br /> f. If sump and piping fail test, proceed as follows: <br /> g. Excavate existing piping sump at tank. <br /> h. Disconnect and plug existing primary and secondary containment product piping. <br /> L Disconnect existing sump liquid sensor. <br /> j. Remove existing piping sump and clean surrounding tank surface. <br /> k. Install new 36-inch fiberglass piping sump (supplied and installed by Western <br /> Fiberglass). <br /> I. Using T"Weaver studded bulkhead penetration seals, extend existing primary and <br /> secondary product piping through sump wall and connect to tank via TmTiteflex flexible <br /> piping. <br /> m. Using a TmWeaver studded bulkhead penetration seal, extend existing sensor conduit <br /> through sump wall and terminate in a sealed junctions box suitable for use in Class 1 <br /> hazardous locations. <br /> n. Fill sump with water and test per SB989 requirements to confirm integrity. <br /> o. Pump water into a labeled DOT drum for either reuse or for proper disposal. <br /> p. Re-connect sump liquid sensor and test to confirm proper operation. <br /> q. Back fill sump. <br /> r. Restore tank cover slab and adjacent pavement. <br /> 7. Waste Oil Tank Secondary Containment Piping <br /> a. Excavate west end of piping in conjunction with sump replacement. <br /> b. Re-configure primary and secondary piping penetration through wall of new tank- <br /> mounted fiberglass piping sump using petroleum-rated fiberglass piping. Install new <br /> reducer test boot. <br /> c. Re-configure primary and secondary piping between point where it daylights (at <br /> building) and inlet piping connection point using double-wall petroleum-rated fiberglass <br /> piping. . Install new reducer test boot. <br /> d. Pressure test re-configured secondary containment piping. <br /> e. If piping passes pressure testing, slide back reducer test boot to expose opening into <br /> secondary containment piping. <br /> f. If test fails, additional excavation will be required for complete piping replacement and a <br /> revised work plan will be submitted. <br /> g. Excavate existing piping sump at tank. <br /> h. Disconnect and plug existing primary and secondary containment product piping. <br /> i. Disconnect existing sump liquid sensor. <br /> j. Remove existing piping sump and clean surrounding tank surface. <br /> G. Pforr Page 3 of 4 <br />