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Geo-Logic Associates WELL NO.: —11 <br /> MONITORING WELL COMPLETION SUMMARY PAGE: 1 OF 1 <br /> JOB NO.: 2011-115 ELEVATION GROUND LEVEL: 263.63 <br /> PROJECT: CORRAL HOLLOW EMP ELEVATION TOP OF CASING: 265.72 <br /> LOCATION: TRACY, CA DATE STARTED: 2/23/12 <br /> INSPECTOR: W. LOPEZ, CHG DATE FINISHED: 3/12/12 <br /> CHECKED BY: J. HOWER, CEG TOTAL DEPTH: 51.1 feet <br /> �� DRILLING SUMMARY: WELL CONSTRUCTION LOG: <br /> n Total Depth: 51.1 feet Data tarTk'�T <br /> tme oat® ime <br /> Borehole diameter: 10° <br /> Driller: Gregg Drilling grilling: 2/23/12 8:18 2/23/12 903 <br /> — Coring: — — —5— Rig: Rhino LAR <br /> Bit(s): Blade bit Ream: 3/12/12 8:54 3/12/12 9:30 <br /> — Casing Install: 3/12/12 10:25 3/12/12 10.28 <br /> Drilling Fluid: N/A <br /> 10— Protective Casing: Auger Filter Placement: 3/12/12 10:28 3/12/12 10:50 <br /> Seal Placement: <br /> (Bentonite) 3/12/12 10:50 3/12/12 10:59 <br /> — <br /> WELL CONSTRUCTION DETAILS: seal Placement:(Great) 3/12/12 13:05 3/12/12 13:39 <br /> 15- <br /> Casing: 2—inch and 1—inch diameter, <br /> — flush—threaded, Schedule 80 PVC. <br /> Zo <br /> (From +2.09 to 31.1 feet) WELL DEVELOPMENT LOG: <br /> — <br /> Start Finish <br /> ]Screen: 2—inch and 1—inch diameter, oat• Time Time <br /> flush—threaded, Schedule 80 PVC Surge Block 3/28/12 11:45 12:15 <br /> 25— whth 0.020—inch slots. <br /> (From 31.1 to 51.1 feet) Bailing 3/28/12 12:15 13:50 <br /> _ Pumping <br /> Filter Pack: RMC, washed and graded Total Gallons Removed: 27 <br /> 30— 12/12 Monterey sand. <br /> (From 27 to 51.1 feel) STABILIZATION TEST DATA: <br /> Time pH Spec.Cond.(µs/cm) Temp(°C) <br /> 35— ® Bentonite 3/8—inch bentonde chips. 13:50 8.40 98.2 25.30 <br /> Seal: (From 22 to 27 feet) <br /> 40— Grout Seal: Neat, Portland cement grout <br /> — with 5% bentonite by weight <br /> (From 0 to 22 feet) <br /> 45- Comments: <br /> 50- <br /> WELL MONITORING DATA: <br /> Date Tkne Description Carr. Depth(feat) SWL By <br /> 55— 3/12/12 7:55 Prior to well construction — 40.42 22321 WBL <br /> 3/28/12 11:45 Prior to well development —2.09 43.31 222.41 MWN <br /> 60— <br /> 65- <br />