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MONITORING WELL LOG <br /> PROJECT NAME Former Agricultural Commissioner's Office LOG OF WELL MW-1 <br /> SITE ADDRESS 392 South Moffat Blvd TOTAL DEPTH (ft) 27 <br /> Manteca, California WELL DIAM (in) 2 <br /> DATE STARTED December 12 2000 DRILLER/COMPANY Amador Arroyo <br /> ' DATE COMPLETED December 12,2000 V&W Drilling(C-57#720904) <br /> DRILLING METHOD Hollow-stem Auger GEOLOGIST/ENGINEER Joseph Ramage R G #5856 <br /> Split-spoon Sampler Ramage Environmental <br /> J <br /> 1 .r O <br /> ( 0 <br /> L g <br /> CL <br /> 2 li <br /> _ F E J W u) (n <br /> a a <br /> EL MU) <br /> 0 2 <br /> ' E < ci a- <br /> Qz DESCRIPTION p <br /> F, a <br /> WELL COMPLETION Expan Cap, lock,8-in street box <br /> 0 Asphalt surface(4-inches thick) Hand dug first 5-feet 0 <br /> 1 1 <br /> 2 2 <br /> 3 3 <br /> 4 4 <br /> 5 a <br /> 00 SM SILTY SAND Silty fine sand medium tan loose dry 5 <br /> ' 6 no petroleum odor 6 <br /> 7 7 <br /> 8 8 <br /> 9 9 <br /> 10 ° <br /> „ 0o SP SAND Poorly-graded medium sand light tan medium dense 10 <br /> 11 dry no petroleum odor <br /> 11 <br /> 12 <br /> ' <br /> 13 <br /> 12 <br /> 13 <br /> 14 <br /> 14 <br /> 15 a <br /> zo 00 ML SILT Gray-brown very stili dry moderate petroleum odor 15 <br /> ' 16 16 <br /> 17 17 <br /> 18 Static groundwater at 18 56 feet on 12/20100 18 <br /> 19 19 <br /> ' 20 3'40 946 MW1-20 SM V Encountered groundwater at 20 8 feel on 12!12100 20 <br /> 21 21 <br /> 22 SILTY SAND Silty fine sand blue-gray dense moist 22 <br /> 23 moderate petroleum odor 23 <br /> 24 24 <br /> 2513 00 MW1-25 CL SILTY CLAY slue-gray stiff moist 25 <br /> ' 26 moderate petroleum odor P6 <br /> 27 27 <br /> 28 28 <br /> 29 Terminated soil boring at 27 feet Installed 2-m dram PVC monitoring well 29 <br /> ' 30 (0 020-inch slot screen from 12 to 27 feet) 30 <br /> 31 Placed filter pack of 93 Sand from 10 to 27 feet 31 <br /> 32 Surged approx 5 minutes purged approx 5 gallons 32 <br /> 33 Placed seal of hydrated bentonite chips from 9 to 10 feet 33 <br /> 34 Surface seal of neat cement from surface to 9 feet 34 <br /> �y 35 35 <br /> ' 36 36 <br /> 37 37 <br /> 38 38 <br /> ' 39 39 <br /> 40 40 <br /> Page 1 of 1 <br />