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Tank Assessment Page Tank Name: Cone Bottom WW Tank <br /> Tank ages: Purchased new in 2016. <br /> Remaining service life:Estimated 20 years. <br /> Tank Construction: <br /> Shape: Cylindrical, cone bottom. <br /> Orientation: Vertical. <br /> Location: Above Ground. <br /> Material of Construction: High Density Linear Polyethylene <br /> Thickness:per ASTM D1998-93 Section 6.1; 1.5 to 0.75 ins.thick(supplied by <br /> fabricator—can be measured with ultrasonic gage). <br /> Lining material and thickness: NA <br /> Corrosion protection equipment: NA <br /> Structural support: Steel support stand for cone bottom tank. <br /> Other identifying features: Seamless,One Piece Construction,Natural, <br /> rotationally molded. <br /> Equipped with level control to prevent overflow(stops feed on high level). <br /> Piping and ancillary equipment(pumps): <br /> Piping Material of Construction: Poly Vinyl Chloride(PVC). <br /> Piping Diameter: 3 in. <br /> Pump location:within secondary containment area. <br /> Pump type/capacity: hose pump-40 gpm <br /> Feed pipes in 90 ft. long impervious trench from food grade wr,and in cant. area <br /> from chemical wr—visually monitored while system is in operation. <br /> Material Storage: <br /> Materials and characteristics: Wastewater with pH between 1 and 13. <br /> Specific Gravity: approx. 1 <br /> Operating Capacity: 7400 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:Pih <br /> Visual Inspection: <br /> Tank parameters at time of inspection: three 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 tank and its affiliated pumps, <br /> piping and ancillary equipment did not reveal signs of leaks,corrosion, weld cracks or <br /> breaks,or scrapes in protective coating which may cause a release from the tank system. <br /> A description of all discrepancies noted during the visual inspection is included with this <br /> report. Initials: 46, <br /> California Tank Lines, Inc. Wastewater Processing Tanks(3) <br />