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r r rr r� r■� r it r rr r � r r r � r r rr r <br /> GROUNDWATER SAMPLING DATA SHEET Well/Piezo ID: U-19 <br /> Site Address: 437 East Miner Avenue, Stockton, Ca. <br /> ENSR No. 06940-325-100 Well �, Piezometer ❑ <br /> Unocal No. 187 / I <br /> Well Purging: Field Tech(s): L✓�' =��t <br /> Date Purged: , <br /> Purge Method: Disposable bails ther �c/ s Weather Conditions: r � <br /> Casing Material: ��� _ <br /> Well Diameter: 2.00 in. <br /> Total Depth: 118.42 ft from TOC volume 3/4"=0.02 1"=0.04 2'=.16 3'=.38 <br /> Depth to Water: - ft from TOC Factor(VF) 4'=.66 5"=1.02 6"=1.50 12"=5.80 <br /> Water Column: ft. <br /> Water Column Volume: gal (WC X VF) 80%Recovery from TOC: =Total Depth-(Water Column X .B) <br /> Time Volume DO Redox Temperature Specific pH Turbidity Color/Clarity Other Other <br /> Removed Potential(ORP) Conductivity <br /> al (mg/L mvolts °C z NTUs <br /> Y , ! 2 << <br /> 3 s <br /> 4 <br /> Sample Collection, <br /> jggk�� <br /> Date Sampled:Sampling Method: er LE' <br /> Sample Type: Grab <br /> Sample ID #of containers Container Type Preservation Analysis Time <br /> - L 5 <br /> 40 ml-glass vial Ice/HCI TPHg 8015, BTEX 8021,5-O 's 8260 <br /> Comments <br /> Signature Date <br />