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Date Begin - End: 10/12/2017 Drilling Company: Taber Drilling BORING LOG MW -6 <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: 38.22309' N <br />_ <br />m <br />:F <br />U <br />o <br />Longitude: -121.41274' E <br />m <br />n s <br />'o <br />Q. <br />o <br />v <br />o <br />n <br />m` <br />_j <br />Approximate Ground Surface Elevation (ft.): 15.00 <br />n <br />H <br />m y a <br />0 <br />o <br />' <br />E <br />a <br />E c m <br />Location Offset: Vineyard <br />o a <br />X <br />� <br />w e <br />0 o L <br />n <br />Surface Condition: Access Road <br />a <br />Um m <br />Q Z <br />i <br />j <br />O <br />Lj Z <br />a> n <br />cL m <br />m <br />E <br />m <br />o x <br />o g o <br />a) <br />U E <br />0, <br />c <br />° o <br />Z <br />u <br />m <br />N <br />m <br />v <br />m Z <br />w 0 <br />(9 <br />Lithologic Description <br />W <br />ED a <br />� <br />1) c <br />3 c.1 <br />a <br />a- <br />a <br />_j <br />a <br />Sandy Lean CLAY (CL): medium plasticity, brown, <br />moist, stiff, with fine-grained sand <br />10 5- <br />BC=4 <br />13' <br />6.6 93.6 86 <br />2" SCH 40 <br />5 <br />Solid PVC <br />5 <br />Riser <br />Silty SAND (SM): fine-grained, brown, moist, loose <br />5 10 <br />increase in fines content <br />BC=3 <br />91, <br />24 <br />3 <br />4 <br />Sandy Lean CLAY (CL): medium plasticity, dark <br />brown, moist to wet, soft, with fine-grained sand <br />0 15 <br />BC=1 <br />NR <br />Portland <br />1 <br />Cement Grout <br />2 <br />Poorly graded SAND (SP): fine to medium -grained, <br />-5 20 <br />dak gray, wet, very loose to loose <br />BC=O <br />18" <br />4.7 <br />0 <br />0 <br />Bentonite Seal <br />20/40 Sand <br />Pack <br />10 25 <br />BC=3 <br />18" <br />3.5 <br />6 <br />II <br />II <br />I I <br />2" SCH 40 <br />I <br />Slotted 0.010 <br />PVC Screen <br />15 30 <br />BC=3 <br />18" <br />3 <br />5 <br />The monitoring well was terminated at approximately <br />GROUNDWATER LEVEL INFORMATION: <br />31.5 ft. below ground surface. Monitoring Well installed <br />4 Groundwater was observed at approximately <br />17 ft. below ground <br />to a depth of 51.5 ft. <br />surface during drilling. <br />GENERAL NOTES: <br />20 35 <br />The exploration location and elevation are approximate and were <br />estimated by Kleinfelder. <br />PROJECT NO.: <br />20181913 <br />BORING LOG MW -6 <br />FIGURE <br />DRAWN BY: <br />TD <br />KLE/NFEL�ER <br />CHECKED BY: <br />RS <br />A-8 <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 />THORNTON, CALIFORNIA <br />REVISED: <br />PAGE: 1 of 1 <br />