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Attachment 3 - Well Construction Diagrams <br />Preliminary Extraction Well Construction <br />CDCR Property, Newcastle Road, Stockton, California <br /> <br /> <br />J-Plug <br />Project Forward Landfill Wells CDCR-EW-X <br />LAND SURFACE Town/City Stockton <br />County San Joaquin County State California <br />3 feet Permit No.TBD <br />Land-Surface Elevation and Datum: <br />Neat Portland Cement up to 3 Feet Below Surface feet Surveyed <br />or approved bentonite cement mix <br /> Estimated <br />Installation Date(s)TBD <br />Drilling Method TBD <br />Blank Riser <br />6 inch Diameter, Drilling Contractor TBD <br />Sch. 80 PVC <br />Remarks: <br />Borehole <br />Minimum 10 inch Diameter <br />TBD feet <br />Hydrated Bentonite Chip Seal <br />5 feet <br />TBD feet <br />#3 Washed Silica Sand Filter Pack or Equivalent to Match Screen Slot Size <br />Centralizer <br />Screen 6-inch Stainless Steel Wire Wrap, Slot Size determined by sieve data from PZs <br />up to 120 Feet Total Well Depth (anticipated) <br />5-foot Stainless Steel Blank Sump and End Cap Notes: <br />DRAWING IS NOT TO SCALE <br />2. Soil logged in accordance with ASTM designation D2488 <br />3. Centralizers to be placed at bottom and top of screen and near surface <br />4. Grout placed with tremie pipe and positive displacement <br />5. Anticipated depth to water 60-70 feet below ground surface <br />6. Well to be surveyed by licensed surveyor <br />7. Plinth sloped to drain water away from well <br />TBD - To be determined <br />1. Exact well completion depth, screen length and placement to be <br />determined based on lithology at each well location <br />Final screen length based on PZ <br />lithological findings <br />Portland Type 1/11 <br />Cement 4 foot wide plinth <br />5 feet <br />Surface casing left as <br />required to hook up to the <br />remedial system (likely <br />initially PVC pipe stick up <br />to 2 ft with well cap). <br />Attachment 3 - Well Construction Diagrams <br />2/1/2023