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GROUNDWATER SAMPLING DATA SHEET Well/Piezo ID: U-1 <br /> Site Address: 437 East Miner Avenue, Stockton, Ca. <br /> ENSR No. 06940-325-100 Weil DU Piezometer ❑ <br /> Unocal No. 0187 <br /> Well Purging: FieldTech(s): <br /> Date Purged: I - <br /> Purge Method: Disposable bailer/other i-7- y:=L-T Y4 h�(' Weather Conditions: Tr -60 <br /> Casing Material: <br /> Well Diameter: 2.00 in. <br /> Total Depth: 57.48 ft from TOC Volume 3/4"70.02 1"=0,04 2"=.16 3"_-38 <br /> Depth to Water: 7r.iF` ft from TOC Factor(VF) 4"=.66 5"=1.02 6"=1.50 12"=5.80 <br /> Water Column: ' 640 ft. <br /> Water Column Volume: t f.'Z�,_ 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 /> gal m /L mVoits °C (US/cm) NTUs <br /> -� rr f L Wit! <br /> 3 rSZ 1 1 � <br /> 4 <br /> Sample Collection: <br /> Date Sampled: ( 17 rr <br /> Sampling Method: Dis osab erlOther <br /> Sample Type: Grab <br /> -Sample ID #of containers Container Type Preservation Analysis Time <br /> .. ( 5 40 mL glass vial Ice/HCI TPHg 8015, BTEX 8021, 5-O 's 8260 �r <br /> M <br /> �J <br /> Comments <br /> Signature /+ Date / / 2 T <br /> �� <br />