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1 Figure #5: Air Sparge Well Construction Schematic <br /> Former Manna Pro Site <br /> 14(004 South Eldorado Street Flush Mounted Well Box <br /> tockton, CA 95206 oncrete Collar <br />' o <br /> 5 <br /> r s <br /> ` 10 <br /> a f 2" Diameter Schedule 40 Blank Casing <br /> Clay& Silt <br /> 15 <br /> 20 <br /> 1 _ <br /> t 25 <br /> Cement Grout <br /> s v 30 <br />' Approximate Groundwater Level <br /> Y4 <br /> Sand x <br />' 35 <br /> I ,4 <br /> 40 <br /> Clay and Silt Bentonite Transition Seal <br /> J.f <br /> 45 010 Slotted 2" Schedule <br />' 40 PVC Casing <br /> 3 Sand Filter Pack <br /> Sand <br />' S 50 <br /> 55 " Diameter Boring <br /> SClay and Silt <br />