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EeMONsayT j_ Date 12/18/96 <br /> � <br /> S�✓ � � w mv sin__ Setup time 14 35 <br /> �o ^\a^ Weather Foggy <br /> IERM WEST - - P Samplers DEM/CJH <br />' WELL # MW-4A <br /> HISTORIC CONCENTRATIONS <br /> ' Location Construction Depth 25 ft bgs <br /> Construction 2 inch pvc/ Measured Depth 2114' <br /> Groundwater Zone Pump Intake <br /> Screened Interval 13-24 5 ft bgs <br /> ' Purge Setting Discharge / Refill Depth to Water 8 94' <br /> Sample Setting Discharge Height of Water Column 12 2' <br /> Volume of one casing 199 gallons <br /> Packer Pressure <br /> Purge Start Time 14 54 Purge calculations <br /> Discharge Rate 1 gpm 12 2 ft x 163 gals / ft x 3 = <br /> ' Purge End Time 15 04 5 97 gallons <br /> ' Time Gallons Temp'F pH EC Water clarity <br /> 1459 2 563 855 15330 Very Turbid <br /> 1502 4 566 775 1470 V Sl Turbid <br /> 1504 6 579 756 1480 lClear <br /> ANALYSES REQUIRED SAMPLE TIME CONTAINER TYPE FILTRATION? <br /> 1525 <br /> See MW-1 <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 /> Dissolved Oxygen reading 4 62 mg/1 Decontarrunation procedure Alconox/DI Rinse <br /> ' Redox Measurement 77 7 mV <br /> Other notes <br /> f � <br /> Sampler Signature(s) <br />