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<br /> <br />Wood Environment & Infrastructure Solutions, Inc. 275 Gal. Waste Antifreeze Tank <br />Seismic load variables: <br />In doing a seismic load calculation, specify <br /> <br />Variables: <br />Site Class (Section 11.4.2, ASCE 7-16) = D <br />Occupancy Importance Factor (Table 1.5-2, ASCE 7-16) = I p = 1.25 <br />Site Design Response Acceleration (Section 11.4.5, ASCE 7-16) = SDS = 0.61 <br />Damping for sloshing force (Section 15.7.2, ASCE 7-16) = 0.5% <br />Distance to Known seismic source = >15 km <br />Specific Gravity of Tank’s Liquid = 1.1 <br />Specific Gravity of Shell material= >> 1 <br />Coefficient of Friction (HDPE on concrete surface) =  = 0.61 <br />Tank Height = H = 56.75 inches <br />Tank Diameter = D = 43 inches <br /> <br />Assessment Conclusions <br /> <br />The waste antifreeze tank system has sufficient structural integrity; is acceptable <br />for the transferring, storing, and treating of hazardous waste (waste antifreeze); <br />and the tank and containment system are suitably designed to meet the <br />requirements cited above (22 CCR §66265.192). <br /> <br />Given an industry and manufacturer estimated 10-15-year service life and the <br />subject tank history and condition, the tank system has an estimated remaining <br />service life of at least 5 years. <br /> <br />This assessment is valid for a maximum period of five (5) years in accordance <br />with 22 CCR §66265.192(h).