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MORRIS <br />SHAFFER <br />Page 4 of 17 E N G I N E E R I N G <br />Tank Assessment Checklist: WT -T1 Acid Waste <br />Tank Name:WT-T1 Acid Waste <br />Approximate Date of Construction: 2018 <br />Design Standards: Industry Practice at time of original construction <br />Approximate Dimensions: 64" diameter by 69" Height to Top of Vertical Wall <br />Tank Configuration: Vertical Flat Bottom Tank <br />Approximate Gross Capacity: 1000 Gallons <br />Material of Construction: I Polyethylene <br />Approximate Tank Wall Thickness: 3/8" by visual observation <br />Tank System Piping: I PVC Pipe, 1 " inlet, 1 " outlet <br />Internal / External Pumps: External air pump <br />Leak Detection Equipment: Visual Observation <br />Corrosion Protection Equipment: N/A <br />Spill Prevention Equipment: Anchor Cables <br />Secondary Containment: Coated concrete berm <br />Hazardous Characteristics of Waste: <br />Acidic wastewater <br />Description of Structural Damage: <br />The cylindrical tank was visible on all sides and did not show any <br />signs of damage. The inside of the tank was not observed. The tank <br />is new and appeared to be in good order. <br />Results of Leak Test: <br />No leak test was performed but tank was in use during our visit. No <br />visual signs of leaking were present. Full operational tank does not <br />leak thereby proving adequate hydrostatic capability for in-service <br />conditions. <br />Foundation: <br />Tank installed on a coated concrete slab -on -grade. There were no <br />signs of settlement around the tank. <br />Seismic Anchors: <br />Seismic anchor brackets are anchored to the coated concrete slab - <br />on -grade. Stainless steel cables are attached to the top of the <br />brackets and wrap around the top of the tank. <br />Estimated Remaining Service Life: <br />20+ years <br />Comments: <br />I This tank appears to be in good condition. <br />1300 INDUSTRIAL ROAD, SUITE 14, SAN CARLOS, CA 94070, (650) 595-2973 FAX (650) 595-2980 <br />