Laserfiche WebLink
Groundwater Monitoring Well Construction Diagram <br /> MW28 <br /> Ground Surface lY" <br /> Traffic rated manhole cover <br /> A r Min 3" casing protrusion capped with lock <br /> 1' Surface concrete seal <br /> i <br /> Annular Seal <br /> (Bentonite Cement Slurry) <br /> i 3' it I <br /> t14 <br /> - Bentonite Seal <br /> 4' <br /> 8" Minimum diameter borehole <br /> 5 <br /> 2"Sch 40 PVC casing <br /> 10' — Groundwater level <br /> Sand Pack(No. 3 Sand) <br /> 1 <br /> 0.01 slot size screening on Sch 40 PVC <br /> 20= ' <br /> r <br /> Figure 7: Well Construction <br /> Frontier Transportation <br /> 425 Larch Road <br /> Tracy, CA <br /> ORANN 6Y DATE'. PROJECT: <br /> DR _ March 2010 Frontier. 01 <br /> i <br />