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MONITORING WELL LOG <br /> PROJECT NAME Former RINO Service Station LOG OF WELL MW-1 <br /> SITE ADDRESS 1001 E Yosemite Avenue TOTAL DEPTH (ft) 32 <br /> Manteca,California WELL DIAM In 2 <br /> DATE STARTED September 18,2000 DRILLERICOMPANY Robert Vickery <br /> DATE COMPLETED September 18,2000 V&W Drilling C-57#720904 <br /> DRILLING METHOD Hollow-stem Auger GEOLOGIST/ENGINEER Joseph Ramage,R G #5856 <br /> Straight D 1 Ramage Environmental <br /> O <br /> o <br /> W 2 <br /> N d in- m (n o <br /> n U <br /> Q m a co z j DESCRIPTION m p <br /> WELL COMPLETION Expan Cap,lock,8-in street box <br /> 0 NA NA NA NA Asphalt surface(4-inches thick) Hand dug first 5-feet 0 <br /> 1 1 <br /> 2 2 <br /> 3 3 <br /> q 4 <br /> 5 SP SAND Poorly-graded fine sand, medium brown,dry, 5 <br /> 6 no petroleum odor 6 <br /> 7 7 <br /> 8 8 <br /> 9 9 <br /> 10 10 <br /> 11 11 <br /> 12 12 <br /> 13 13 <br /> 14 14 <br /> 15 ML CLAYEY SILT Medium beige-brown,moist, 15 <br /> 16 no petroleum odor 16 <br /> 17 17 <br /> 18 (grades slight gasoline odor) 18 <br /> 19 19 <br /> 20 Static groundwater at 20 8 feet 20 <br /> 21 21 <br /> 22 22 <br /> 23 23 <br /> 24 24 <br /> 25 SP SAND Poorly-graded fine sand, medium brown, 25 <br /> 26 very moist,slight gasoline odor 26 <br /> 27 27 <br /> 28 28 <br /> 29 29 <br /> 30 30 <br /> 31 31 <br /> 32 ML CLAYEY SILT Medium brown,moist no gasoline odor 32 <br /> 33 33 <br /> 34 Terminated sod bonng at 32 feet Installed 2-in dram PVC monitoring well 34 <br /> 35 (0 020-inch slot screen from 17 to 32 feet) 35 <br /> 36 Placed filter pack of#3 Sand from 15 to 32 feet 36 <br /> 37 Surged approx 8 minutes purged appmx 6 gallons 37 <br /> 38 Placed seal of hydrated bentonite chips from 13 to 15 feet 38 <br /> 39 Surface seal of neat cement from surface to 13 feet 39 <br /> 40 40 <br /> Page 1 of 1 <br />