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■r Mir <br /> _ r <br /> E�. <br /> GROUNDWATER SAMPLING DATA SHEET Well/Piezo ID: U-21 <br /> Site Address: 437 East Miner Avenue, Stockton,Ca. <br /> ENSR Job#: 06940-325-100 Well Piezometer ❑ <br /> Unocal Job#: 0187 �--� <br /> Well Purging: Field Tech(s): G <br /> Date Purged: -'8 2 ``� l J <br /> Purge Method: Disposable bailerlother Weather Conditions: CIO <br /> Casing Material: <br /> Well Diameter: 2.00 in. <br /> Total Depth: 9.76 ft from TOC volume 3/4'=0.02 1"=0.04 r a.16 T a.38 <br /> Depth to Water. ft from TOC Factor(VF) 4'=.66 5'=1.02 s•a 1.50 1r=5.80 <br /> Water Column: ft. <br /> Water Column Volume: gal(WC X VF) 80%Recovery from TOC:=Total Depth-(Water Column X.8) <br /> Time Volume DO Redox Temperature Specific pH Turbidity Color/Clarity Odor Other <br /> Removed Potential(ORP) Conductivity <br /> al (mg/L mvolts °C uSlcm NTUs <br /> 12 <br /> �Q o <br /> 4 <br /> Sample Collection: <br /> l $ <br /> Date Sampled: 8 "d <br /> Sampling Method:Disposable Bailer/Other - <br /> Sample Type: Grab <br /> Sam le ID #of containers Container Type Preservation Analysis Time <br /> — 5 40 mL glass vial Ice/HCl TPH9 8015, BTEX 8021,5-O s 8260 <br /> Comments47 <br /> V <br /> f <br /> Signature Date <br />