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LOG OF WELL PVVI3-76A Page 1 of 2 <br />Date(s) Drilled: 2-23-94 to 2-24-94 Geologist: Donald W. Clarke III (RFW) <br />Drilling Contractor: Clark Well Client: TreaTek-CRA <br />Driller/Helper: Ken Plaster/Tony Serpa Site: Occidental Chem./Simplot <br />Rig Type: Failing Holemaster 1250 Location: Lathrop, California <br />Method: Mud Rotary Development: Surging w/compressed air <br />(No mud added) (-1600 gallons purged) <br />Pilot Diam: 6 inches Plus test pumping <br />Ream Diam: 12 inches (-360 gallons purged) <br />Drilled Depth: 80 feet <br />Depth <br /> <br />escription <br />(ft-) <br />SP—Brown FINE TO MEDIUM SAND with trace to little silt. <br />CL/SC—Grayish brown to yellowish brown FINE SANDY CLAY to CLAYEY FINE SAND, <br />some of the material cemented and very hard, some oxides. <br />SP—Brown to g-ayish brown FINE TO MEDIUM to FINE TO COARSE SAND, to trace silt, trace <br />to some fine gravel to 1/4". <br />CL—Bluish gray to grayish brown SILTY CLAY, locally some fine to medium sand, moderately <br />plastic. <br />(continued)