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Figure #4: Air Sparge Well Construction Schematic <br /> Former Manna Pro Site <br /> 04 South Eldorado Street Flush Mounted Well Box <br /> tockton, CA 95206 concrete Collar <br />' 0 <br /> r <br /> 5 <br />' 10 <br /> 2" Diameter Schedule 44 Blank Casing <br /> Clay& Silt <br />' - • r 15 <br /> 20 <br /> • . , Approximate Groundwater Level <br />' 25 ement Grout <br /> f <br /> Sand , • 30 <br /> 1 <br /> •i ° • • A 35 <br /> Clay and Silt <br /> ♦ 40 <br /> ♦ 3 Sand Filter Pack <br /> Sand 45 Bentomte Transition Seal <br /> 010 Slotted 2" Schedule <br /> 40 PVC Casing <br /> 50 <br /> Clay and Silt <br /> 10" Diameter Boring <br /> w 55 <br /> 1 <br />