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GROUNDWATER SAMPLING DATA SHEET Well/Piezo 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 /> Well Purging: l Field Tech(s): s +-ti cr <br /> Date Purged: - - d sL/ <br /> Purge Method: Disposable bailerothe _ Wit: z�, ,-I Weather Conditions: A611!7,6 <br /> 1 <br /> Casing Material: <br /> Well Diameter, 2.00 in. <br /> Total Depth: 119.06 ft from TOC Volume 314'=0.02 1"=0.04 2"=A6 3"=.38 <br /> Depth to Water: ) ,Z-1, ft from TOC Factor(VF) 4"=.66 5"=1.02 6"=1.50 12"=5.80 <br /> Water Column: { -. 7 __ ft. V <br /> Water Column Volume: �3: 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 m /L mVolt:s `C / NTUs <br /> o "' [. Clad' <br /> 0 <br /> -7 til 2 ' ',t-( Z <br /> 3 21 <br /> 4 <br /> Sample Collection: <br /> Date Sampled: I I- <br /> Sampling Metho it"'Iisposa'ble Bail then / te= & <br /> Sample Type: <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 <br /> fr '� <br /> Comments Gti <br /> ✓rte•: , 'rlW,� Y:1 r r �nrt/ <br /> 47 <br /> Date <br /> Signature <br /> � r � i• r � r <br />