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MPDS Services Inc. <br /> 2401 Stanwell Drive Tel (510) 602-5120 <br /> Conc`o"rd, California 94520 Fax (510) 689-1918 <br /> PURGING/SAMPLING DATA SHEET <br /> SAMPLING DATE & A M <br /> LOCATION TIME SAMPLED _ 11-2-0194 z;�Td <br /> FIELD TECHNICIAN <br /> PURGE METHOD DATE(S) PURGED Zyl V-4 _ <br /> WELL NUMBER t <br /> WATER LEVEL-INITIAL � ' ' SZ SAMPLING METHOD o,�P <br /> WATER LEVEL-FINAL 4 a CONTAINERS Z_ <br /> WELL DEPTH g-1 2 ► PRESERVATIVES V,,x "A <br /> WELL CASING VOLUME I0 b tCASING DIAMETER 4�L 1( <br /> ELECTRICAL <br /> GALLONS TEMPERATURE CONDUCTIVITY pH <br /> TIME PURGED (o F) (Wmhos/cm)x 100) ( ± 0.2) <br /> { ± <br /> 10F) { ± 10% of TOTAL <br /> zr ��. z • � Z So <br /> 3 -2- 6 9' `-? <br /> t Correction Factors Well Diameter Factor <br /> 2" 0 17 <br /> 3" 037 <br /> 4" 065 <br /> 4 5" 082 <br /> 6" 1 46 <br /> 8" 26 <br /> 12" 5 87 /P&S <br />