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Well Monitoring Form <br /> Client Pestana Trust <br /> Site Address 2360 East Street , Tracy, CA <br /> Date August 16 , 1993 <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 71 ' Purge Method Submersible Pump <br /> 0-12 gallons <br /> Disposable Bailer <br /> 12-25 5 gallons <br /> (bundle of 3) <br /> Water Column <br /> Height 12 73 ' x 0 66 = 8 4 gallons (1 well volume) <br /> 3 x 8 4 gallons = 25 2 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) (mmhos/cm) <br /> --------------------------------------------------------- <br /> 11 51 0 72 . 7 6 . 77 2 . 99 <br /> 11 59 8 5 74 . 8 6 76 2 89 <br /> 12 28 17 0 80 6 6 65 3 25 <br /> 12 47 25 5 78 . 6 6 72 3 . 10 <br /> Contaminant Odor None <br /> Turbidity Level [Von-turbid <br /> Sheen on Water • No <br /> Time of Sample Collection • 1 . 05 pm <br /> Witnessed by . Mr Michael Infurna <br /> Purge water contained small pieces of clear plastic <br /> Sampler ' s Signature : - <br />