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�aciarEs ir�C <br />' MONITORING WELL PURGING AND SAMPLING LOG <br /> Well No MW <br /> Project Name RPMS EZ Serve Stockton#100966 Project No 54 25627 26 16 <br /> Project Address/City/County 2531 Waterloo Road/Stockton/ San Joaquin <br /> INSTRUMENTATIONPURGING&SAMPLING , METHOD <br /> Water Level Meter(Wdc m) Sohmst( /at Interface Probe(Mndaym) NA <br /> Water Quality Meter(M°dellID)YSI 63 1 Decontamination Method 3-stage bucket: (wash, tap rinse, DI rinse) <br /> Purging Method PVC Bailer _V um Truck Submersible Pump Other <br /> Sampling Method Teflon Bailer Disposable Bailer Other <br /> BOREHOLE ! INFORMATION <br /> Borehole Diameter(Circle) 8" 10" 12" Casing Diameter(Circle) 2" 4" 6" 12" 18" 24" <br /> Borehole Multiplier(BM)(gaiionahoot) 081 is 195 Casing Multiplier(CM)(gdiomsh°ot) 0 16 065 147 587 132 235 <br /> MONITORING MEASURENTENTSCALCULATIONS <br />' Depth to Free Product(feet) /V`A- Borehole Volumes(BV) <br /> Depth to Water(DTW)(feet) Q_3 WC x BM = (BV)(gai) x 1 5 BV(gala <br /> Total Well Depth(feet) �,- !7 s Casing(Volumes(CV) 1 <br />' Water Column(WC)(feet) ©� WC ( f x CM (CV)(gal) x 3 0 CV(sag a <br /> Free Product Thickness(feet) <br /> ILIA Free Product Pinged(gallons) <br /> PURGING DATA <br /> Gum Vol Purged Electric Conductivity Dissolved Turbidity Odor <br /> Time DTW(ft) (gauom) Temp CC) pH (rr or mhas) Oxygen(mgt) Kn,) (Yes/No) <br /> Pr"vng Start Time <br /> ! aS % o a n1-e- /f 41 <br /> 16 Y-5- <br /> 6 �76 it <br /> /QO.SO — 1 � <br />' Total Gallons Purged (V� 7 <br /> Purging End Time <br /> SAMPLING <br /> Time Sampled Depth to Water®Sample Time(DTWs) <br />' Filtered <br /> Analytical Parameters <br /> Container Types,Volumes,&Quantities b-/no) Sample Preservatives (cross-out a thin applicable) <br /> Glass VOA, 40 ml , X 4 no HCl STEX/TPHG/ OXY'S, Pb scavengers <br /> 1 •T�t <br /> WELL RECOVERYPATA <br /> Maximum Drawdown(DTWin)(feet) Approximate Flow Rate(GPM) <br /> 1 (DTW-DTWs} Recovery <br /> %Recovery - <br /> =1- (DTW-DTWm) x 100 Calculation %Recovery =1 ( ) x 100 <br /> Recovery Type <br /> Fast _Slaw %Recovery <br /> 1 • <br /> ATC Representative(s) Alex Flores/Mike Luksic <br /> Subcontractor <br /> Signature AV Date f4*0 -7 Q 3 <br /> 1 <br />