Laserfiche WebLink
LOG OF WELL PWB-716A 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 Description <br /> 00 <br /> 0 <br /> SP--&own FINE TO MEDIUM SAND with trace to little silt. <br /> 4 <br /> CUSC—Grayish brown to yellowish brown FINE SANDY CLAY to CLAYEY FINE SAND, <br /> 6 some of the material cemented and very hard, some oxides. <br /> 8 <br /> 10 <br /> 12 <br /> 14 <br /> 16 I' Ijiva; SP--Brown to grayish brown FINE TO MEDIUM to FINE TO COARSE SAND, to trace silt, trace <br /> to some fine gravel to 1/4". <br /> 18 <br /> 4•'i: <br /> 20 <br /> 22 <br /> 24 <br /> ;tli li; <br /> 26 ;ii iillil: <br /> IIi�iVr; <br /> 28 CL—Bluish gray to grayish brown SILTY CLAY, locally some fine to medium sand, moderately <br /> plastic. <br /> 30 <br /> 32 <br /> 34 <br /> 36 <br /> 38 (continued) <br />