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mEr M M <br /> w- 0 i <br /> GROUNDWATER SAMPLING DATA SHEET WelltPiezo ID: U-23 <br /> Site Address: 437 East Miner Avenue,Stockton, Ca. <br /> ENSR No. 06940-325-100 Well Piezometer ❑ <br /> Unocal No. 187 <br /> Well Purging: �r f_ FieldTech(s): t frc <br /> Date Purged:_ <br /> Purge Method: Disposable bailer/other u U Weather Conditions: c YC <br /> Casing Material: L)C, <br /> Well Diameter: 2.00 in. <br /> Total Depth: 119.07 ft from TOC Volume 314"=o.o2 1"=0.04 2"=.1s 3"=.38 <br /> Depth to Water. M ft from TOC iFactorff) -4"=.66 5'=1.02 6"=1.50 12"=5.80 <br /> Water Column: 13 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 Other <br /> Removed Potential (ORP) Conductivity . <br /> al (mg/L mVolts °C L HTUs <br /> j o 7 21,0 <br /> 1 Q <br /> s, t t <br /> 1 �Z 2 0 <br /> 3 —4 Z �. <br /> 4 <br /> s <br /> Sample Collection; <br /> Date Sampled: <br /> Sampling Method: Disposable Bailer/Other d--yy/f <br /> � _ <br /> Sample Type: Grab <br /> SaAnple ID 1#of containers Container Type Preservation Analysis Time <br /> 5 40 ml glass vial Ice/HCl TPH9 8015,BTEX 8021,5-O 's 8260 <br /> Comments <br /> Signature <br /> Date <br /> r" - <br />