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American Geological Services, Inc. <br /> P.O. Box 3416 MONITORING WELL <br /> ' Sonora, CA <br /> Tel.: (209) 5332-802-80 21 SAMPLE LOG <br /> Project Name: Project Number: <br /> Tracy Cold Storage CA95DE-029 <br /> Well No. MW-7 Page 1 of 1Date: 12-19-97 Collected By:TKS <br /> Quadrangle: Sec. <br /> ' Northing: Fasting: Contractor Checked by: <br /> 50841.7391 35786.8098 V&W Drilling. GTW <br /> WELL DETAILS <br /> ' Date Constructed: 03-08-96 Date Developed: 03-15-96 Date Last Sampled: 10-15-97 <br /> Casing Type: PVC Dia. 2.0„ Screen Type: PVC Dia.2 0 Well Purging Method: <br /> ' Length: 7' Depth: 4' Length. 20' Slot Size 0.01" Submersible Pump <br /> Ground Surface Elevation: <br /> Well Depth:26.07' <br /> ' Collar(datum)Elevation: <br /> 56.15' Total Column Thickness: <br /> Total Column Elevation: <br /> Product Depth: NA Product Thickness: NA <br /> ' Water Level Elevation: <br /> 46.72 Water Depth:9.43' Water Thickness: 15.36' <br /> Well water volume:2.40 gallons <br /> (2"=0.16 gift,4"=0.65 g/t, 6"=1.47 glft) <br /> WELL PURGING AND WATER PARAMETER TESTING <br /> TIME WATER VOLUME TEMP PH COLOR CONDUCT DISSOLVED TURBIDITY ODOR REMARKS <br /> LEVEL PUMPED (°C) (units) MS/Cm. OXYGEN <br /> 1319 <br /> ' 1.0 19.3 6.94 Brown 2.11 High None <br /> 1320 <br /> 2.5 20.0 6.96 Lt Brown 2.11 High None <br /> 1321 <br /> 5.0 20.2 7.00 Lt Brown 2.15 Moderate None <br /> 1322 <br /> ' 7.5 20.2 7.04 Lt. Brown 2.15 High None <br /> 1 , <br /> SAMPLING INFORMATION <br /> ' SAMPLE NO. SAMPLING METHOD CONTAINER COLOR TURBIDITY ODOR ANALYSIS REQUESTED <br /> Disposable TPH-gas <br /> MW7-Blank Bailer 1 VOA Clear Low None BTEX <br /> Disposable TPH-gas <br /> ' MW7-W Bailer 3 VOA Clear High None BTEX,oxygenates <br /> Additional Information: <br />