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i <br /> OWI AND SAMPLING LOG <br />' MONITORING WELL PURGING <br /> Well No MW-7 <br /> Project Name E-Z Serve location No 100966 ProjectNo 43 25827 0026 <br /> Prgled Address/City/County 2537 Waterloo Road,Stoddon,California <br />' Water Level Meta'(Moddim) ATC-1 Interface Probe(Mod ym) NIA <br /> Water Quality Meter(ModdgD) HYDAQ Decontamination Method 3-stage bucket (wash, tap rinse, DT rinse) <br /> Purging Method X PVC Bailer Vacuum Truck Submersible Pump Other <br /> Sam"Borehole <br /> linMethod Teflon Bailer X Disposable Bailer puler <br />' ter(Cimle) S" 10" 12" Casing Diameter(Circle) 2" 4" 6" 12" 18" 24" <br /> Borehole Multiplier(BM)(gauons/root) 091 is 195 Casing Multiplier(CM)(gallons/root) 016 0 65 147 587 13.2 2351 <br />' Depth to Free Product(feet) Borehole Volumes(BV) <br /> Depth to Water(DTW)(feet) 3 L 17> WC xBM = (BV)(g4 x 15 BV(gal) <br /> Total Well Depth(feet) , 7, 30 Casing Volumes(CV) ` <br /> Water Column(WCxfeet) S S,t--? WC 3,';,,1 7 x CM �i r = (CV)(gat) x 3 0 CV <br /> Free Product Thickness(feet) Free Product Purged(gallons) <br /> Cum Vol Purged Electric Conductivity Dissolved Turbidity Odor <br /> Time DTW(ft) (gauons) Temp(°C) PH (u or mhos) Oxygen(mSti) (fin (Y-iNo) <br />' s Purging Start Time <br /> r /S c -7 /Cl 3/ <br />' Total Gallons Purged <br /> "Os <br /> rging End Time <br /> Tune Sampled C Depth to Water @ Sample Tune(DTWs) <br /> Filtered Analytical Parameters <br /> Contamer Types,Volumes,&Quantities fycs/no) Sample Preservatives (aoss-out au NOT appbable) <br /> 6 x 40 mL VOAs N Ice and HC1 TPHg TPHd BTEX MTBE OXYs <br /> 1 <br /> Maximum Drawdown(DTWm)(feet) Approximate Flow Rate(GPM) <br /> Recovery <br /> Recovery =I- (DTW-DTWs) x 100 Calculation %Recovery =1 ( - x 100 <br /> (DTW-DTWm) ( ) <br />' Recovery Type —Fast _Slow %Recovery= <br /> ATC Repres®tative(s) MR&TM <br /> Subcontractor <br /> Date <br /> Signature <br />