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rr r re rr err rr r� r �r m m r ar ■■r rs rr <br /> GROUNDWATER SAMPLING DATA SHEET Well/Plezo ID: U-23 <br /> Site Address: 437 East Miner Avenue, Stockton, Ca. <br /> ENSR No. 06940-325-100 Well Piezometer ❑ <br /> Unocal No. 187 l <br /> Well Purging: I 1 or, Field Tech(s): 'Qll:�i A-2' <br /> Date Purged: <br /> Purge Method: Es osaTle ther Weather Conditions: r, U(/Cl <br /> Casing Material C <br /> Well Diameter: 2.00 in. <br /> Total Depth_ 119.07 ft from TOC volume 3/4'=0.02 1"=0.04 2"=.16 3"=.38 <br /> Depth to Water: L ft from TOC Factor(VF) 4'=.ss 5"=1.02 6'=1.50 12'=5.80 <br /> Water Column: _sj(, , 10 rt. <br /> Water Column Volume: f t gal(WC X VF) 80% Recovery from TOC:=Total Depth-(Water Column X .8)= 50'17 <br /> r <br /> Time Volume DO Redox Temperature Specific pH Turbidity Color/Clarity Other Other <br /> Removed Potential (ORP) Conductivity <br /> (gal) m /L) (mVolts) °C) uSlcm) (NTUs) <br /> -- <br /> ' 2 L c ) Z-(o(Z <br /> L 3 11100 ~ !s aI <br /> 4 <br /> +�41GJEll <br /> Sample Collection: <br /> Date Sampled: <br /> Sampling Method: �a -BZW/Other <br /> Sample Type: Grab <br /> Sample ID #of containers Container Type Preservation Analysis Time <br /> -- L 40 mL glass vial Ice/HCI TPHg 8015, BTEX 8021,5-O 's 8260 1 Z <br /> Comments <br /> Signature <br /> Date 1 <br /> s <br />