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701 N. AarFcmntrr IMh . Santa Ana, CA 9270E <br />A:7141560%11322 www.taw9 Poo <br />EMCO WHEATON DROP TUBE CALCULATION SHEET <br />Client Name <br />Facility ID <br />PACIFIC BELL TELEPHONE CO DBA ATT CAL <br />UE046 <br />Street <br />City <br />State <br />Zip <br />Facility Address <br />907 LINCOLN RD. <br />STOCKTON <br />CA <br />95207 <br />Technician Name <br />Darren Sciume <br />TANK ID <br />UE0460002 <br />Technician Signature+ <br />Date <br />07/15/2025 <br />Tank Capacity (gallons) 4010 <br />Calculated 95% volume (gallons) 3810 <br />(Y) = Tank Diameter (Y) 64 <br />(A) = Length of Tank Riser Pipe 48.75 <br />(Add manway height if needed) <br />Inch reading from Tank Chart for 95% Volume 57.50 <br />(B) = Tank Diameter - 95% Volume inch reading 6.5 <br />Upper tube Length <br />C = (A+B)-7.5=Upper tube length 47.75 <br />From the top of the OPV use measurment C to mark <br />the cut point on the top tube. <br />Lower Tube Length <br />(D) =Length from Top of Tank Riser to Tank Bottom 120 <br />D-6 = Cut point on the bopttom of the lower tube 114 <br />Figure t <br />Tape Measure Q Spi11 <br />~ Containment <br />Containment <br />T Nipple <br />C <br />A Riser Pipe <br />B <br />`• Maximum <br />\ Fluid Level <br />A110DEVR Overfill Prevention Valve Installed Above Drain Valve <br />Conventional, Non-EVR Application <br />Figure 2 <br />A1100EVR - — <br />Seat <br />!j <br />Riser Pipe A <br />C <br />Maximum — g <br />Fluid Level <br />A1100EVR Overfill Prevention Valve Installed Below Drain Valve <br />EVR Application <br />Figure 3 - <br />Riser Pipe Installed <br />Inside Manway <br />f`y� <br />