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C <br />c <br />L <br />X <br />z u <br />U <br />wc <br />O >i <br />W Cie <br />CL Q <br />n: <br />z <br />G <br />Cl <br />ff <br />a <br />z <br />o Z <br />N Q <br />m U) <br />i <br />mLL <br />J <br />E Y <br />.. I u' <br />c <br />Y <br />C1. <br />Lu :E <br />J W <br />LL H <br />Zr <br />z <br />o <br />Date Begin - End: 10/19/2017 Drilling Company: Taber Drilling BORING LOG MW -14 <br />Logged By: <br />B. Campbell Drill Crew: <br />Andy <br />& Stephen <br />Hor.-Vert. Datum: Not Available Drilling Equipment: CME -75 (truck -mounted) Hammer Type - Drop: 140 Ib. 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: 38.20427° N <br />c <br />°7 <br />o <br />Longitude: -121.40697° E <br />d <br />a <br />I's <br />'o <br />a <br />o <br />o <br />oN <br />aa)) m <br />co <br />c <br />_t <br />Approximate Ground Surface Elevation (ft.): 11.00 <br />m H a <br />a <br />ID <br />o <br />— <br />E <br />— <br />E c <br />@ <br />Location Offset: Kile Road <br />3 <br />— <br />c <br />Surface Condition: Gravel Road <br />amO <br />O <br />Z <br />ZN O <br />Q> <br />N <br />T <br />� C <br />O <br />N <br />N <br />II <br />a) ZZ <br />Lithologic Description <br />m <br />af <br />3U <br />o <br />a <br />w <br />dQ <br />Sandy SILT (ML): medium plasticity, dark brown, <br />10 <br />moist, medium stiff <br />5 <br />BC=10 <br />14" <br />13.6 118.1 <br />2" SCH 40 <br />5 <br />brown, hard, weakly cemented <br />28 <br />Solid PVC <br />44 <br />Riser <br />P=>4.5 <br />10 <br />not visibly cemented <br />BC=10 <br />15" <br />0 <br />23 <br />33 <br />P=>4.5 <br />15 <br />Clayey SAND (SC): low to medium plasticity, brown, <br />BC=4 <br />NR <br />Portland <br />-5 <br />wet, loose <br />4 <br />Cement Grout <br />3 <br />Sandy Lean CLAY (CL): medium plasticity, brown, <br />20 <br />wet, very stiff <br />BC=4 <br />12" <br />10 <br />11 <br />13 <br />P=3.5 <br />Bentonite Seal <br />20/40 Sand <br />Pack <br />25 <br />— — — — — — —— <br />Lean CLAY with Sand (CL): medium plasticity, gray, <br />BC= 1 1 1 1 <br />12" <br />15 <br />wet, hard <br />40 <br />I <br />P=>4.5 <br />l I <br />2" SCH 40 <br />Slotted 0.010 <br />Clayey SAND (SC): low to medium plasticity, brown, <br />PVC Screen <br />30—wet, <br />medium dense <br />BC=4 <br />15" <br />I <br />I I <br />. <br />-20 <br />9 <br />11 <br />The boring was terminated at approximately 31.5 ft. <br />GROUNDWATER LEVEL INFORMATION: <br />below ground surface. Monitoring Well installed to a <br />Q Groundwater was observed at approximately <br />15.5 ft. below ground <br />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 -14 <br />FIGURE <br />DRAWN BY: <br />PR <br />("KL <br />EINF-EL DER <br />CHECKED BY: <br />TD <br />A-16 <br />PACIFIC GAS AND ELECTRIC <br />` <br />Bright People. Right Solutions. <br />DATE: <br />10/25/2017 <br />LINE 108 REPLACEMENT PROJECT (R-515) <br />THORNTON, CALIFORNIA <br />REVISED: <br />11/27/2017 <br />PAGE: 1 oft <br />