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PARSONS <br /> MONITORING WELL CONSTRUCTION DIAGRAM - FLUSH MOUNTED <br /> Monitoring Well Number TW-5 <br /> Project Name: PG&E Tracy Former MGP Site Drilling Co./Driller: Woodward Drilling, Inc. <br /> Project Number: 444534.02000 Drilling Method: Hollow-Stem Auger, 10"Augers <br /> Date Drilled: 7/11/2008 Development Method: Surge/Bail/Purge Methodology <br /> Date Installed: 7/11/2008 Geologist/Signature: T. Blaney <br /> Depth to GW: 8.5 Feet Below Ground Surface Top of Casing Elevation: 40.33 Feet Above Mean Sea Level <br /> Traffic Vault <br /> Concrete Locking Water Tight Cap <br /> Ground Surface <br /> 3' 5' 8" <br /> Bentonite Chips <br /> 4" Dia., Sch. 40 PVC Casing <br /> IF <br /> 10" Diameter Borehole = = <br /> 25'8" <br /> 26' <br /> RMC Lonestar#2/12 Sand = = <br /> 4" Dia., Sch. 40 PVC Screen = =_ <br /> (Screen Size 0.010-inch) <br /> Threaded End Cap <br /> NOT TO SCALE <br /> PARSONS Well Construction Diagram for Monitoring Well TW-5 <br /> PG&E Former Tracy MGP Site <br /> Date:01/06/2008 Drawn:SG Remedial Investigation Report <br />