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Date Begin - End: 10/13/2017 Drilling Company: Taber Drilling BORING LOG MW -9 <br />Logged By: <br />B. Campbell Drill Crew: <br />Andy <br />& David <br />Hor.-Vert. Datum: Not Available Drilling Equipment: CME -55 Track Rig Hammer Type - Drop: 140 Ib. <br />Auto - 30 in. <br />Plunge: <br />-90 degrees Drilling Method: <br />Hollow Stem Auger <br />Weather: <br />Sunny Bore Diameter: <br />8 in. O.D. <br />FIELD EXPLORATION <br />LABORATORY RESULTS <br />MONITORING WELL <br />CONSTRUCTION' <br />Latitude: 38.21870° N <br />m <br />m <br />_j <br />Longitude: -121.41521'E <br />y�� <br />'o <br />a <br />o <br />v <br />o <br />a) in <br />-°c <br />w <br />Approximate Ground Surface Elevation (ft.): 11.00 <br />n <br />m� a <br />o <br />No <br />a <br />Ea <br />Location Offset: Nowell Road and Kile Road <br />Z <br />o <br />Surface Condition: Access Road <br />cp <br />_jw <br />u Z <br />a> <br />�C m <br />m <br />E <br />oa <br />8 <br />o <br />n a <br />o <br />ym <br />22 1Z <br />Lithologic Description <br />w o <br />CD <br />m <br /><n <br />ED a <br />0� <br />W <br />U <br />o <br />m <br />o_ <br />m <br />n. <br />LT <br />_j <br />Q__ <br />Sandy Lean CLAY (CL): medium plasticity, dark <br />10 <br />brown, moist, stiff, with fine-grained sand <br />5 <br />Lean CLAY with Sand (CL): medium plasticity, brown, <br />BC=B <br />14' <br />12.2 122.0 <br />5 <br />IN/ <br />moist, hard, with fine-grained sand <br />14 <br />Sosd PVC <br />20 <br />Riser <br />P=>4.5 <br />10—BC=5 <br />low plasticity <br />12" <br />0 <br />6 <br />15 <br />P=>4.5 <br />15 <br />medium plasticity <br />BC=2 <br />2" <br />Portland <br />5 <br />Cement Grout <br />6 <br />Clayey SAND (SC): fine to medium -grained, medium <br />plasticity, yellowish brown, wet, medium dense <br />20 <br />1/0' <br />Lean CLAY with Sand (CL): medium plasticity, olive <br />gray, moist to wet, hard, with fine-grained sand <br />BC=4 <br />9 <br />15" <br />42 16 <br />10 <br />13 <br />P=>4.5 <br />Bentonite Seal <br />20/40 Sand <br />Pack <br />25 <br />BC=6 <br />14" <br />15 <br />423 <br />I <br />it <br />___________________ <br />Sandy Lean CLAY (CL): medium plasticity, brown, <br />I I <br />2" SCH 40 <br />wet, very stiff, with fine-grained sand <br />I I <br />Slotted 0.010 <br />PVC Screen <br />30 <br />BC=5 <br />16" <br />I I <br />20 <br />7 <br />11 <br />P=2.5 <br />The monitoring well was terminated at approximately <br />GROUNDWATER LEVEL INFORMATION: <br />31.5 ft. below ground surface. Monitoring Well installed <br />Q Groundwater was observed at approximately 25 ft. below ground <br />to a depth of 31.5 ft. <br />surface during drilling. <br />GENERAL NOTES: <br />35 <br />The exploration location and elevation are approximate and were <br />estimated by Kleinfelder. <br />-25 <br />PROJECT NO.: <br />20181913 <br />BORING LOG MW -9 <br />FIGURE <br />DRAWN BY: <br />TD <br />("KL <br />INF-JELDHA <br />CHECKED BY: <br />RS <br />A-11 <br />PACIFIC GAS AND ELECTRIC <br />\ ` <br />Bright People. Right Solutions. <br />DATE: <br />11/27/2017 <br />LINE 108 REPLACEMENT PROJECT (R-515) <br />\moi <br />THORNTON, CALIFORNIA <br />� <br />REVISED: <br />PAGE: 1 of 1 <br />