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MPDS Services Inc , • <br /> 2401 Stanwell Drive <br /> Tel f 510) 602-5120 <br /> Concord, California 94520 <br /> Fax (5101 689-1918$ <br /> PURGING/SAMPLING DATA SHEET <br /> SAMPLING DATE & <br /> LOCATION 6= ?fin TIME SAMPLED �P/Z i0 P M <br /> FIELD TECHNICIAN <br /> PURGE METHOD DATE(S) PURGED 9IZ ,t <br /> WELL NUMBER <br /> WATER LEVEL-INITIAL 3`f SAMPLING METHOD 9 <br /> WATER LEVEL-FINAL 17 CONTAINERS <br /> WELL DEPTH I 1I PRESERVATIVES v0,,9s ffd <br /> WELL CASING VOLUME tCASING DIAMETER Zj' <br /> ELECTRICAL <br /> GALLONS TEMPERATURE CONDUCTIVITY pH <br /> TIME PURGED (°F) (/umhos/cmx100 or <br /> 7 <br /> NS/cm <br /> Iii L �� 3 .6 6 G� _S-- O 3 � 1 <br /> t Conversion Factors Well Diameter Factor S = Siemens = mhos <br /> i2" 0 17 Stabilization Criteria <br /> 3" 0 37 Temperature = ± 1 OF <br /> 4" 065 Conductivity = ± 10% of total <br /> 45" 082 pH = t 02 <br /> 6" 1 46 <br /> 8" 2 60 <br /> 12" 5 87 /P&S <br />