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EM . <br /> GROUNDWATER SAMPLING DATA SHEET Well/Piezo ID: U-2 <br /> Site Address: 437 East Miner Avenue, Stockton, Ca. <br /> ENSR No. 06940-325-100 Well �' Piezometer ❑ <br /> Unocal No. 187 <br /> Well Purging: Field Tech(s): <br /> ' � G Ci�I; i <br /> Date Purged: t r { 7OI <br /> Purge Method: Disposable bailer/other--t-2 V4(-'V i `n3 Weather Conditions: L i <br /> Casing Material: <br /> Well Diameter: 2.00 in. <br /> Total Depth: 58.46 it from TOC Volume 314"=0.02 1"=0.D4 T=.16 W=.38 <br /> Depth to Water: T '72C--, f ft from TOC Factor(VF) 4"=.66 5'= 1.02 6"=1.50 12"m5.80 <br /> Water Column: -77.15(, ft. <br /> Water Column Volume: 11.y V 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 (US/cm) NTUs <br /> f" o 1,C rte . i+ '. f �. lCl. <br /> (' ��,,� � _ Ei � +rD •2Z> L ter 2 G� ��? �, � <br /> z �.• G�, 3 p'; 1,�;73 V i Z 1.7 .71 ICS. <br /> 4 <br /> Sample Collection: <br /> Date Sampled: tt r-7 ,C <br /> Sampling Method: Disposable BailerlOther <br /> Sample Type: Grab <br /> Sample ID #of containers Container Type Preservation Analysis Time <br /> Gl 5 40 mL glass vial Ice/HCl TPHg 8015, BTEX 8021, 5-O 's 8260 ;1 if ' <br /> Comments <br /> Signature �,� _ -�� Date <br />