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GROUNDWATER SAMPLING DATA SHEET Well/Piezo ID: U-18 <br /> Site Address: 437 East Miner Avenue,Stockton,Ca. <br /> ENSR No. 06940-325-100 Well [�` Piezometer E]Unocal No. 187 / <br /> Well Purging: 14 <br /> Field Tech(s): (/G <br /> Date Purged: — �-0"� _ <br /> Purge Method: D sposable bailer/ h Weather Conditions: vr�d1 L 4Z <br /> Casing Material: G <br /> Well Diameter: 2.00 in. <br /> Total Depth: 79.06 ft from TOC volume 314"=0.02 1"=0.04 7"=.16 3'=.38 <br /> Depth to Water: ftfrom TOC Factor(vr) 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 DO Redox Temperature Specific pH Turbidity Calor/Clarity Other <br /> Removed Potential(ORP) Conductiv <br /> al (mg/L mV01ts "C " NTUs <br /> 0 1 Z !L- 1 1!) <br /> -Zz G _ <br /> ♦r <br /> i 3 <br /> 4 <br /> Sample Collection: / <br /> Date Sampled: 7 <br /> Sampling Method: osable Baile they u - <br /> Sample Type: Grab <br /> Sam le ID #of containers Container jXpe Preservation Analysis Time <br /> / 5 40 mL glass vial Ice/HCl TPI-la 8015, BTEX 6021, 5-O 's 8260 l <br /> i <br /> i <br /> Comments <br /> 7 <br /> Signature Date `tom ! 7 <br /> it �w r� rr �■r r r rr r� ri rr �r r� err � � r � <br />