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GROUNDWATER SAMPLING DATA SHEET WelllPiezo ID: U-12 <br /> Site Address: 437 East Miner Avenue,Stockton,Ca <br /> ENSR No. 06940-325-100 Well Piezometer ❑ <br /> Unocal No. 187 <br /> AA <br /> Well Purging: Field Tech(s): <br /> Date Purged: I <br /> Purge Method: Disposable bailer/other Weather Conditions:_ 1y6tii <br /> Casing Material: " <br /> Well Diameter: 2.00 in. <br /> Total Depth: 119.06 ft from TOC Volume 314'=U2 1"=0.04 2"=.16 3"=.38 <br /> Depth to Water: �� 1- 15- 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.8)_ �• <br /> Time Volume Di Redox Temperature Specific pH Turbidity COIorlClarity Other Other <br /> Removed Potential(ORP) Conductivity <br /> (gal) (mg/L) (mVolts °C) uSlcm (NTUs <br /> — v Z.Z- cwt^ <br /> il 44 2 '1% tt 1 1DIA .3 f✓� ,, <br /> I .SS 3 <br /> 4 <br /> sf <br /> c <br /> Sample Collection: <br /> Date Sampled: l - 0 <br /> Sampling Method: h:'7415-107- <br /> is sa fe Ba' IOther <br /> Sample Type: Grab <br /> Sample ID #of,containers Container Type Preservation Analysis Time <br /> 17r 7 40 mL glass vial Ice/HCl TPHg 8015, BTEX 8021,5-0 's 8260,Atng JU, ®t3 <br /> oft gDjh94- <br /> Comments <br /> Signature_ �� 14).x" Date 1 <br />