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MPDS Services Inc. <br /> 2401 Stanwell Drive Tel: 1510) 602-5120 <br /> Concord, California 94520 Fax: (510) 689-1918 <br /> PURGING/SAMPLING DATA SHEET <br /> SAMPLING DATE & A.M. <br /> LOCATION: #� �SjL/ -s' G� TIME SAMPLED a 'O <br /> 7-3-D3 FIELD TECHNICIAN <br /> PURGE METHOD IyKc.�o� DATE(S) PURGED l z f 1ohQQ. <br /> WELL NUMBER �I�J <br /> WATER LEVEL-INITIAL qO• 3 SAMPLING METHOD <br /> WATER LEVEL-FINAL 40. C3 __ _ CONTAINERS <br /> WELL DEPTH PRESERVATIVES VQrls 7 C� <br /> WELL CASING VOLUME 's L tCASING DIAMETER 2�1 <br /> ELECTRICAL <br /> IF GALLONS TEMPERATURE CONDUCTIVITY pH <br /> TIME PURGED (°F) 4jrnhos/cmx100 ) or <br /> NS/cm ,4 <br /> t Conversion Factors: Well Diameter Factor S = Siemens = mhos <br /> 2" 0.17 Stabilization Criteria: <br /> 3" 0.37 Temperature = ± 1 °F <br /> 4" 0.65 Conductivity = t 10% of total <br /> 4.5" 0.82 pH = t 0.2 <br /> 6" 1.46 <br /> 8" 2.60 <br /> 1?" 9 a7 rP&S <br />