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MPDS Services Inc. <br /> 2401 Stanwell Drive Tel (510) 602-5120 <br /> Concord, California 94520 Fax (510) 689-1918 <br /> 0 PURGING/SAMPLING DATA SHEET <br /> SAMPLING DATE & <br /> LOCATION 40/ Z 3 — /r TIME SAMPLED ! 2,lz1 `74 P M <br /> /0 3 `/ 4" FIELD TECHNICIAN _i/cicf- S <br /> PURGE METHOD /0-e i DATE(S) PURGED 10 A2 •l <br /> WELL NUMBER L( 2— <br /> WATER LEVEL-INITIAL _ �T SAMPLING METHOD <br /> WATER LEVEL-FINAL 9 CONTAINERS 5 <br /> WELL DEPTH 1�' �3 PRESERVATIVES ✓<: 9 � C� <br /> WELL CASING VOLUME 1. 63 tCASING DIAMETER Z' ' <br /> ELECTRICAL <br /> GALLONS TEMPERATURE CONDUCTIVITY pH <br /> TIME PURGED (°F) (Nmhos/cmx100 } or <br /> NS/cm <br /> 6 <br /> Conversion Factors Well Diameter Factor S = Siemens = mhos <br /> 2" 0 17 Stabilization Criteria <br /> 3" 0 37 `temperature = ± 1 OF <br /> 4" 0 65 Conductivity = ± 10% of total <br /> 45" 082 pH = ± 0 2 <br /> 6" 1 46 <br /> 8" 2 60 <br />