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Tank Assessment Page Tank Name: Final Neutralizer Tanks <br /> Tank ages: Purchased new, used 20 years <br /> Remaining service life: Estimated 5 years. <br /> Tank Construction: <br /> Shape: Cylindrical, flat bottom. <br /> Orientation: Vertical. <br /> Location: Above Ground, inside building(no sun exposure). <br /> Material of Construction: High Density Crosslinked Polyethylene <br /> Thickness: per ASTM D1998-93 Section 6,1; 1.5 to 0.5 ins. thick <br /> Lining material and thickness:NA <br /> Corrosion protection equipment: NA <br /> Other identifying features: Seamless,One Piece Construction,Natural, <br /> rotationally molded. <br /> Piping and ancillary equipment(pumps): <br /> Piping Material of Construction: Poly Vinyl Chloride(PVC). <br /> Piping Diameter: 3 in. <br /> Pump location: in pre-neutralizer area. <br /> Pump type/capacity: centrifugal pump-40 gpm <br /> Material Storage: <br /> Materials and characteristics: Wastewater with pI I between 7 and 10. <br /> Specific Gravity: approx. 1 <br /> Operating Capacity: 370 gallons. <br /> Chemical compatibility findings: The materials identified above are compatible for <br /> contact with or proximity to the equipment,tank or tank system in this assessment. <br /> Initials: " <br /> Visual Inspection: <br /> Tank parameters at time of inspection: in use. <br /> Acute visual evidence of leaks: none. <br /> Condition of interior surface: good. <br /> Condition of exterior surface: good. <br /> Condition of nozzles, flanges, fittings at tank: good. <br /> Condition of piping: good. <br /> Visual Inspection findings: A visual inspection of the tanks and affiliated piping and <br /> ancillary equipment did not reveal signs of leaks,corrosion, weld cracks or breaks,or <br /> scrapes in protective coating which may cause a release from the tank system. A <br /> description of all discrepancies noted during the visual inspection is included with this <br /> report. Initials: <br /> Califomia Tank Lines, Inc. Final Neutralizer Tanks(3) <br />