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i <br /> k <br /> �. Date:9/19/97 <br /> Set up time; 1355 <br /> Weather:Clear <br /> Samplers: DEM/CJH <br /> WELL # MW-4A <br /> HISTORIC CONCENTRATIONS: <br /> Location: <br /> Construction:2 inch pvc/ Construction Depth:25 ft.bgs. <br /> Groundwater Zone: <br /> Measured Depth:21.25'Screened Interval: 13-24.5 ft.bgs. Purge Method:Grundfos Pump (2") <br /> Pump Intake:-12' <br /> Sample Method: Disposable Bailer <br /> Depth to Water:8.68' <br /> Sample Preservation Method:Ice Height of Water Column: 12.57" <br /> Volume of one casing:2.05 gallons <br /> 111 Purge Start Date:9/19/97 <br /> Purge Start Time: 1414 <br /> Discharge Rate: -1 gpm calculations <br /> ft.x.163 gals. / ft.x 3= <br /> Purge End Time: 1420 gallons <br /> i <br /> Time Gallons Temp.°C pH ECµs/am Water clarity <br /> 14:16 2 21.01 <br /> 7.61 1305 Turbid <br /> 14:18 4 <br /> 20.45 7.36 1275 Less Turbid <br /> 14:20 6.5 20.31 7.29 1267 Clear <br /> ANALY 1rS RE UIRED SAMPLE TIME CONTAINER TYPE <br /> Fe+2 FILTRATION. <br /> 14:40 3 x 40 ml VOA <br /> pH,Conductivity,Chloride& <br /> Poly <br /> Nitrate <br /> Dissolved Methane,Dissolved CO2 3500 ml Poly In the Lab <br /> x 40 ml VOA <br /> BTEX,Trimethylbenzene,TPHg 6 x 40 ml VOA HCL <br /> TPHd <br /> f" 2 x 1 Liter Amber Glass <br /> Dissolved Mn 500 nil <br /> E = FIELD OBSERVATIONS(Well condition,repairs needed) Poly In the Lab <br /> PID:reading <br /> when well cap opened: 1.9 ppm Disposal method of purge water: Drummed on site. <br /> D.O. ding(mg/l):4.08,2.24, 1.57Decontamination procedure:Alconox/DI Rinse <br /> Redeasurement(mV): 143,145, 142 <br /> Other notes: <br /> III <br /> P <br /> t <br /> Sampler Signature(s)/D �/,, - v <br />