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=%�= = M = = = = 9 = = I= = = = <br /> 3 -), 5 <br /> EMs <br /> GROUNDWATER SAMPLING DATA SHEET WelllPiezo ID MW-20 <br /> Site Address 1665 Pacific Ave Stockton,CA 95204 <br /> ENSR Job# 06940 357-100 Well Piezometer ❑ <br /> Unocal Job# 2859 TTT <br /> Well Purging Field Tech(s)_r e3'q G F M m W� <br /> Date Purged } Z-[ y3 <br /> Purge Method Disposable bailerlother Weather Conditions (i J e'` `'S �`� kct►�.a � <br /> Casing Material p vc. <br /> Well Diameter 200 In <br /> Total Depth 8645 ft from TOC Volume 314•=0 02 r=0 04 r= ss 3 = 38 <br /> Depth to Water ai LL f ft from TOC Factor 4 = 66 5 =102 6 =1 50 12 =580 <br /> Water Column ftp <br /> Water Column Volume Ll #�gal(WC X VF) 80%Recovery from TOC =Total Depth-(Water Column X 8) <br /> Time Volume DO Redox Temperature Specific pH Turbidity ColorfClarlty Odor Other <br /> Removed Potential(ORP) Conductivity NTUs <br /> al m L mvolts °C uSlClll <br /> o 9 �' 7 V �S Y C <br /> 0 �x J G y7 1 33� ilL 3O c. jl <br /> 171I�, 2 �;,LI` o J 1 iD tL� s� !d J 3J •r <br /> W 3 7LJ3 29 1j!9 <br /> 4 <br /> Sample Collection <br /> Date sampled I Z-f U eco <br /> Sampling Method Disposable Ba+lerlOther (�4� <br /> Sample Type Grab <br /> Analysis Time <br /> Sam le ID #of containers Container T Preservation Y <br /> L 0)d 3- 4 40 mL glass vial lcelHCI TPH 8015 BTEX 8021 7-Oxts 8260 <br /> Comments <br /> Signaiur Date <br /> I <br />