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r � r r r r r� r r �■■� rr #r r� r r� rr a. <br /> GROUNDWATER SAMPLING DATA SHEET Well/Piezo 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: Field Tech(s): i' <br /> Date Purged: ' .Ls� <br /> Purge Method: isposable th <br /> bailer e i '- ; Weather Conditions: <br /> Casing Material: ` <br /> Well Diameter: 2.00 in. <br /> Total Depth: 119.07 ft from TOC Volume 3/4"=0.02 1'=0.04 2"=.16 3"=.38 <br /> Depth to Water: 4 S ft from TOC lFactor(VF) 4"=M) 5"=1.02 6"=1.50 12"=5.80 <br /> Water Column: "y'' ft. <br /> Water Column Volume: 131 gal(WC X VF) 80%Recovery from TOC: =Total Depth-(Water Column X .8)__<C). �L <br /> Time Volume DO Redox Temperature Specific pH Turbidity Color/Clarity Other Other <br /> Removed Potential (ORP) Conductivity . <br /> al) (mg/L) (mVolts °C NTUs <br /> 7 0 u�.• <br /> ry z n J <br /> 3 <br /> 4 <br /> Sample Collection: r <br /> Date Sampled: I <br /> Sampling Method:d3LspQsable BN*Other_� <br /> Sample Type: Grab <br /> Sam le ID #of containers Container Type Preservation Analysis Time <br /> 5 40 mL glass vial Ice/HCl TP`Hg 8015, BTEX 8021,5-O 's 826D <br /> j <br /> Comments <br /> Signature E � Date Il' o'1 <br /> r- <br />