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Spill Prevention Compliance Corporation P .O . Box 1289 . . . . . . . . Waterford, CA 95386 Telephone : (209) 969-0851 Email : spccorp (i4hotmail . com Website: www.speplan . com Certified Assessment Form (PE) for AST Systems Assessor : Spill Prevention Compliance Corporation Onsite Assessor : Todd McWhorter P.O. Box 1289 Telephone: (209) 969-0851 Waterford, CA 95386 email : snccorp &hotmail. com Client : Chase Chevrolet Contact : Alex Robinson , Service Manager Address : 6441 Holman Rd . Phone No. : 209475-6640 City/State/Zip ; Stockton , CA 95212 Date of Test: 10-949 Assessment Data- Waste Oil AST -b 1 . AST Configuration & age of AST Horizontal AST Double wall steel/approx 14 yrs old ( 0812005 ) Ia. Useful Life Remaining of AST AST has approximately 30 years of remaining life (Subsection kl -k10) 2 . AST Primary vessel construction (describe) 1500 gals/Waste OIWL# P-77880 /UL142-Container/ Made to UL 142 construction standard-at least . 167 in. steel thickness per UL Std for Safety for Steel Aboveground Tanks for Flammable and Combustible Linuids, suitable for containine waste oil, 3 . AST piping (describe) _ _1 in . hydraulic hose to 1 in. copper nine from four (4) Graco Husky 1040 pneumatic pumps to 1 in. hydraulic hose to 2 in openine w/fitting. from pump for suanly to top of AST. There is an inline check valve between supply hoses & pump. Piping is adequately secured , supported & protected against physical damage and excessive stress due to settlement, vibration, expansion or contraction , & was tested , found to he in good condition & not leaking, 4 . Intemal/External pump description_ external steel pillar mounted four (4) Graco Husky 1040 pneumatic Pumps w/2 solenoid 12yoltmWas200psi-w/continuous electronic monitoring & pneumatic auto shut down- Pumping is initially from operations containment boxes to pump via hydraulic hoses, and then to the AST. External pump, which pumps from traveling containment boxes which receives product from vehicle.5 }!bove. and then is pumped into the AST. The pumps have an inline check valve to prevent siphoniniz thru supply hoses. Ancillary equipment is secured to wall, & supported and protected against physical damage and excessive stress due to settlement. vibration , expansion or contraction (see pie) 5. AST drawing (provided/drawn: source) (see attached) 6. Design Standard (ASME, UL, etc .) UL 142 -Double Wall Steel /Mfr: Containment Solutions 7. AST foundation (describe) concrete sulrfloor, Base of AST under UL 142 adequate to withstand the load of a full tank-Tank is anchored to concrete basement floor. 8 . AST anchoring (seismic zone/floatation risk) AST is anchored , with steel flange anchor feet, which are welded to outer shell of tank, & % in . anchor bolts into the concrete floor, thru the openings provided in the tanks anchor flanges. Stockton is a (groundshaking) seismic region , These anchors are intended to secure the tank during a seismic event. There are two scenarios which would create loads upon them. The first scenario is an empty tank. With an empty tank, the expansion anchors resist the overturning moment through their tensile (pull-out) capacity. Since the anchors are installed at the perimeter of the tank, the distance between anchors (in either direction) provides a sufficient lever arm for the concrete anchors to not exceed their allowable null-out capacity. The second load case is with a partially full or full tank. In this scenario, because the liquid fills the bottom of the tank and increases its weight, the governing load case becomes the shear capacity of the concrete expansion anchors In the shear loading, all anchors resist the loads and their allowable capacity is not exceeded . This load case 15 conservative in its analysis since it neglects the friction force created by the weight of the partially full or full tank. This tank' s rear is against the concrete support structure at the wall, which further acts as a barrier to movement in the event of an earthquake. AST is