Attachment_2_-_Well_Constuction_Schematic.pdf

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CEDAR RAPIDS MONITORING WELL DRILLING
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140G0223Q0109
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Text version

Locking protective steel surface casing –10 to 2.0 ft

Land surface most likely will be natural fill, expecting aquifer material to collapse around well

Native material

Approximate well depth 60 feet below land surface, drill to bedrock for alluvial wells and set screen above bedrock

Concrete surface seal and pad 0 to 2.0 ft

Approximately 50 feet of 4-inch diameter schedule 40 PVC riser

10 foot long 4-inch diameter schedule 40 PVC

0.01 inch slot screen

4-inch diameter schedule 40 PVC end cap

Schedule 40 PVC should stick up above the land surface ~8-9 ft

Bentonite annular seal on top of collapsed natural fill based on how much native material fills in annular space once casing is removed.

estimated water level based on nearby monitoring wells

Generalized schematic of proposed well construction.

File details come from the government source that posted it. Updated .