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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 . ❑ _ <br /> Unocal No. 187 Is <br /> Well Purging: �.. Field Tech(s): <br /> 104 <br /> Date Purged: I e' ^ f ! <br /> Purge Method: Disposable bailer/other 6- Weather Conditions: 1 c L! 1 <br /> Casing Material: <br /> Well Diameter: 2.00 in. <br /> Total Depth: 79.06 ft from TOC volume 3/4'=0.02 1'=0.04 2"=.16 3"=.38 <br /> Depth to Water: Z,t- ft from TOC iFactor(Vr) 4"=.66 5"=1.02 6'=1.50 12"=5.80 <br /> Water Column: H _`i 4 _ ft. U <br /> Water Column Volume: "�. _ gal(WC X VF) 80%Recovery from TOG: =Total Depth- (Water Column X.8) = T" <br /> Time Volume DO Redox Temperature Specific pH Turbidity Color/Clarity Other Other <br /> Removed Potential(ORP) Conductivity <br /> gal) (mg/L) (mV01ts eC jus/cm) NTUs <br /> i L 0 <br /> IC(Is rl , t -7 t 000 s-e C, s o <br /> } i —Ld L. f ttr <br /> ttt z 1 "-5-T <br /> 4 <br /> I <br /> Sample Collection: <br /> Date Sampled: 'zr Q`� <br /> Sampling Metho isposa ai ther fl' -{t• t <br /> Sample Type: Grab <br /> Sample ID #of containers Container Type Prdservation Analysis Time <br /> 40 mL glass vial Ice/HCI TPH9 8015, BTEX 8021,5-O 's 8260 O <br /> Comments <br /> Signature Oy4 i�.. t t t sn� Dale -,?- (L L <br />