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rr rr rr rr rr rr r rr r■ rr rr r rr rr rr r r <br /> GROUNDWATER SAMPLING DATA SHEET Well/Piezo ID: U-7 <br /> Site Address: 437 East Miner Avenue Stockton,Ca. <br /> ENSR No. 06940-325-100 Well it Piezometer ❑ <br /> Unocal No. 187 j 7 <br /> Well Purging: Field Tech(s): <br /> Date Purged: <br /> Purge Method.Dispo6able l 'lerloiher Weather Conditions: OUaCQ^� <br /> Casing Material: )Vc. <br /> Well Diameter: 2.00 in. <br /> Total Depth: 54.17 ft from TOC Volume 314"=0.02 1°=a.a4 2"=,16 3"=.38 <br /> Depth to Water: ��•r1 - ft from TOC Factor(VF) 4"=.66 5'=1.02 6•=1.50 12"=3.80 <br /> Water Column: L( •� ft. <br /> i Water Column Volume: a 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 Other <br /> Removed Potential(ORP) Conductivity <br /> al) (mg/L) (mVolts) °C uslcm NTUs <br /> "7 C I <br /> 2 96 �' <br /> 3 Q. <br /> 4 <br /> Sample Collection: <br /> Date Sampled: /) %Lidna <br /> Sampling Method: Dis�asable%Oer/Other <br /> Sample Type: Grab <br /> I <br /> Sample ID #of containers Container Type Pres6rvation Analysis Time <br /> - JV 40 ml-glass vial lce!HCI TPHg 8015,BTEX 8021, 5-O 's 8260 <br /> I <br /> I <br /> Comments <br /> Signature Date <br /> iq p <br />