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MPDS Services Inc. <br /> 2401 Stanwell Drive Tel 15101 602-5120 <br /> Concord, California 94520 Fax (510) 689-1918 <br /> PURGING/SAMPLING DATA SHEET <br /> SAMPLING DATE & A M <br /> LOCATION it5Z A c1 k,-, TIME SAMPLED �t� I S �- /2 'z <br /> FIELD TECHNICIAN <br /> PURGE METHODS DATE(S) PURGED 9//415 <br /> WELL NUMBER <br /> WATER LEVEL-INITIAL `13 6V SAMPLING METHOD <br /> WATER LEVEL-FINAL 3 6 CONTAINERS S/ <br /> WELL DEPTH 6 Z PRESERVATIVES _- t,d A ')}6I <br /> WELL CASING VOLUME tCASING DIAMETER �' r <br /> ELECTRICAL <br /> GALLONS TEMPERATURE CONDUCTIVITY pH <br /> TIME PURGED (°F) (Nmhos/cmx100 ) or <br /> NS/cm <br /> 3 . 3 3 :4- 9'-;L <br /> . I y 6 �— <br /> rz 'c � lZ 6 � �- �• � � S'� <br /> t Conversion Factors Well Diameter Factor S = Siemens = mhos <br /> . 2" 0 17 Stabilization Criteria <br /> 3" 0 37 Temperature = ± 1 IF <br /> 4" 065 Conductivity = t 10% of total <br /> 4 5" 082 pH = 0 2 <br /> 6" 1 46 <br /> 8" 2 60 <br /> 12" 587 /P&S <br />