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Well Monitoring Form <br /> Client : Pestana Trust <br /> Site Address : 2360 East Street , Tracy , CA <br /> Date . March 31 , 1995 <br /> Agency Representative : Mr. Michael Infurna, Senior REHS <br /> San Joaquin County PHS/EHD <br /> Representative Contacted Prior to Sampling: Yes <br /> Total Well Depth 19 . 44 ' Monitoring Well : MW-3 <br /> Depth to Water : 6 . 24 ' Purge Method. BK Hand Pump <br /> Water Column <br /> Height . 13 . 20 ' x 0 . 66 = 8 . 71 gallons ( 1 well volume) <br /> 3 x 8 . 71 gallons = 26 . 1 gallons ( three well volumes <br /> is typically the minimum number of <br /> gallons purged from a monitoring <br /> well prior to obtaining samples) <br /> Time Gallons Temperature pH Conductivity <br /> Removed (Degrees F) (umhos/cm) <br /> --------------------------------------------------------- <br /> 1438 0 66 9 7 . 23 3 . 41 <br /> 1442 8 . 75 66 . 2 7 20 3 . 38 <br /> 1445 17 50 66 . 0 7 . 18 3 . 37 <br /> 1447 26 . 25 66 . 6 7 . 23 3 37 <br /> Contaminant Odor . None <br /> Turbidity Level : Clear <br /> Sheen on Water: No <br /> Time of Sample Collection: 1450 <br /> Witnessed by: No Witness ' <br /> * <br /> Sampler ' s Signature: VOiW -F NPP- <br /> Mr . <br /> PPMr . Don Johnson assisted with sampling <br />