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MPD1 Services Inc. <br /> 2401 5tonwell Drive Tel (510) 602-5120 <br /> Concord, California 94520 Fax (510) 689-1918 <br /> PURGING/SAMPLING DATA SHEET <br /> SAMPLING DATE & A M <br /> LOCATION* 6'? TIME SAMPLED P M <br /> e4740-7 FIELD TECHNICIAN <br /> PURGE METHOD DATE(S) PURGED / zv F4 <br /> WELL NUMBER <br /> WATER LEVEL-INITIAL 1) L �P SAMPLING METHOD 8 <br /> WATER LEVEL-FINAL } Z CONTAINERS Z <br /> WELL DEPTH PRESERVATIVES t!-,: �i� 4 <br /> WELL CASING VOLUME V `' tCASING DIAMETER Z ' <br /> ELECTRICAL <br /> GALLONS TEMPERATURE CONDUCTIVITY pH <br /> TIME PURGED (°F) (CNmhos/cm)x100) ( - 0 2) <br /> ( <br /> 10F) ( t 10% of TOTAL <br /> 7 <br /> j / 2 c7 E S t/ Z <br /> t Correction Factors Well Diameter Factor <br /> 2" 0 17 <br /> 3" 0 37 <br /> 4" 065 <br /> 4 5" 082 <br /> 6' 1 46 <br /> 8" 26 <br /> 12" 5 87 /P&5 <br />