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k <br /># Date:9/18/97 <br /> , Set up time: 1630 <br /> Weather:Clear <br /> Samplers:DEM/CJH <br /> WELL # MW-5A <br /> F. HISTORIC CONCENTRATIONS: <br /> Location. Construction Depth: 18 ft.bgs. <br /> Construction:4 inch pvc/ Measured Depth: 17.45' <br /> F Groundwater Zone: s. Purge Method:Grundfos Pump(2") <br /> Screened Interval:8-18 ft.b <br /> g Pump Intake: --T <br /> rSample Method:Disposable Bailer Depth to Water:3.93' <br /> Sample Preservation Method:Ice <br /> Height of Water Column: 13.52' <br /> Volume of one casing:8.8 gallons <br /> Purge Start Date:9/18/97 <br /> Purge Start Time: 1639 Pp-= 11culationsPp-=11 <br /> Discharge Rate:-1 gpm 13.52 ft.x.653 gals. / ft.x 3= <br /> Purge End Time:1706 26.5 gallons <br /> FTime Gallons Temp,°C pH ECµs/ctrl Water clarity <br /> 16:44 5 27.09 7.02 1945 Clear <br /> �-� 16°49 10 26.45 7.03 1902 Clear <br /> 16:54 15 26.35 7.03 1863 Clear <br /> 16:59 20 26.28 7.03 1816 Clear <br /> 17:06 27 26.20 7.03 1772 Clear <br /> F ; <br /> AN— LYSES REQUIRED SAMPLE TIME CONTAINER TYPE FILTRATION? <br /> Fe+2 17:15 3 x 40 mi VOA <br /> pH,Conductivity,Chloride& Poly <br /> Nitrate 500 ml Poly In the Lab <br /> Dissolved Methane,Dissolved CO2 3 x 40 ml VOA <br /> BTEX,Trimethylbenzene,TPHg 6 x 40 ml VOA HCL <br /> TPHd <br /> 2 x 1 Liter Amber Glass <br /> Dissolved Mn 500 ml Poly In the Lab <br /> FIELD OBSERVATIONS(Well condition,repairs needed) <br /> PID reading when well cap opened:0.0 ppm Disposal method of purge water: Drummed on site. <br /> D.O.reading(mg/1):0.44,0.24,0.18,0.13,0.11 Decontamination procedure:Alconox/DI Rinse <br /> Redox Measurement(mV): 157, 164,169, 175,178 <br /> Other notes:Collected duplicates on all analyses. <br /> Sampler Signature(s). `LG41v - 1 <br /> q <br />