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%ir WELL PURGING AND SAMPLING LOG <br />' MONITORING <br /> . Well No MW-4 <br /> ProjectName E-Z Serve Location No 100966 Projed No 43 25827 0026 <br /> Project Address/City 1 County 2537 Waterloo Road,Stockton,California <br />' Water Level Meter(moddw) ATC-1 lnterfam Probe(m.&m) N/A <br /> Water Quality Meter(muddw) HYDAQ DeoontammationMethod 3-stage bucket {wash, tap rinse, DI rinse) <br /> Purging Method PVC Bailer Vacuum Truck. Submersible Pump Other <br /> Sampling Method Teflon Bailer Disposable Bailer Otho' <br />' Borehole Diameter(C rete) S. 10" 12" Casing Diameter(C rrcle) 2" 4" 6" 12" 18" 24" <br /> Borehole Multiplier(BM)Wonshoot) 081 15 195 Casing Multiplier(CMxgaIlous/-0 016 0 65 1 47 587 13 2 23 5 <br />' Depth to Free Product(feet) Borehole Volumes(BV) <br /> Depth to Water(DTW)(fed) S (1 WC x BM – (BV)(gd) x 15 BV(gat) <br />' Total Well Depth(feet) �� Casing Volumes(CV) <br /> Water Colrarm(WC)(feet) WC �� 7C x CM 4'S=_�� (CV)(, <br /> x 3 0 CV(gat} <br /> Free Product Thickness(feet) ' Free Product Purged(gallons) oe <br /> Gum Vol Purged Electric Conductivity Dissolved Turbidity Odor <br /> Time DTW(ft) � ) Temp ce) PH (�orm mhos) Oxygen(-9/L) (t.Mt (Yes/No) <br /> Id, Purging Start Time <br /> r ' d� 7ra . i r 9 , 7-1 <br /> q <br /> Total Gallons Purged <br /> `( Purging End Time <br /> Time Sampled Depth to Water @ Sample Tune(DTWs) Si (�-7 <br /> �P i 2 �c.? <br /> Filtered Analytical Parameters <br /> Container Types,Volumes,&Quantities (Y-/no) Sample Preservatives (cross-0utall NOTapphcabte) <br /> 6 x 40 mL VORs N Tce and HC1 TPHg TPHd BTEX MTBE OXYs <br /> Maximum Drawdown(DTWm)(feet) Approximate Flow Rate(GPM) <br /> Recovery 1 <br /> %Recovery =1- (DTW-DTWS) .100 Calculation %Recovery =1 - x 100 <br /> (DTW-DTWm) ( ) <br />' Recovery Type East _Slow %Recovery= <br /> ATC Representatrve(s) MR&TM <br /> Subcontractor <br /> Signature Date <br />