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r � � r r r r r■■i r rr rr rr ■r rr r� �■r r <br /> GROUNDWATER SAMPLING DATA SHEET Well/Piezo ID: U-9 <br /> Site Address: 437 East Miner Avenue,Stockton,Ca. <br /> ENSR No. 06940-325-100 Well Piezometer ❑ <br /> Unocal No. 187 <br /> rr <br /> Well Purging: Field Tech(s): 1 C G+ [ec� Set tGe <br /> Date Purged: int IQ ~ �" y <br /> Purge Method: Disposable bailerlolher `Tose d;r �eather Conditions: oyllf'J`ccuoS <br /> Casing Material: <br /> Well Diameter: 2.00 in. <br /> Total Depth: 51.16 ft from TOC lValurne 3I4'=0.02 1"=0.04 2'=.16 3"=.38 <br /> Depth to Water: r ft from TOC Factor ff) 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 /> i <br /> Time Volume DO Redox Temperature Specific pH Turbidity Color/Clarity Other Other <br /> Removed Potential(ORP) Conductivity <br /> (gal) m lL mVolts) (°C) (uSlem (NTUs <br /> 0 QC O C 0AX <br /> 1 r <br /> 17 <br /> 4 <br /> 1 <br />' Sample Collection: <br /> Date Sampled: 7 ly L <br />{ Sampling Method:Pjas osaW44;ailer/Other <br /> Sample Type: Grab <br />} Sample ID #of containers Container Type Preservation Analysis Time <br /> 40 mL glass vial Ice/HCi TPHg 8015,BTEX 8021,5-O 's 8260 <br /> Comments <br /> bySignatureU, Date <br />