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i <br /> Well Monitoring Form <br /> t <br /> Client : Pestana Trust <br /> Site Address . 275 Grant Line Road, Tracy, CA <br /> Date: June 28 , 1993 <br /> Agency Representative: Ms . Mary Meays , Senior REHS <br /> San Joaquin County PHS/EHD <br /> Representative Contacted Prior to Resampling. No <br /> Total Well Depth 16 . 05 ' Monitoring Well : MW-1 <br /> Depth to Water: 7 . 82 ' Purge Method: Submersible Pump <br /> Water Column <br /> Height . . . . . . 8 . 23 ' x 0 17 = 1 40 gallons (1 well volume) <br /> 3 x 1 . 40 gallons = 4 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 <br /> --------------------------------------------------------- <br /> 3 . 53 <br /> (umhos/cm) <br /> ------------- -- <br /> 3 : 53 0 76 . 3 6. 99 2630 <br /> 3 56 1 . 5 73 . 2 7 .03 2510 <br /> 4. 00 3 .0 73 . 2 7 . 03 2380 <br /> 4 :07 4 . 5 71 . 4 7 .02 2480 <br /> 4: 13 6 .0 73 . 6 7 . 24 2510 <br /> Contaminant Odor: None <br /> Turbidity Level : Low, water clear <br /> Sheen on Water No <br /> Time of Sample Collection : 4 : 16 pm <br /> Witnessed by No witness <br /> Samplers Signature: Ns"Y6 <br /> Page 8 <br />