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► � Well Monitoring Form <br /> a <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 17 20 ' Monitoring Well : MW-3 <br /> Depth to Water 7 . 60 ' Purge Method: Submersible Pump <br /> Water Column <br /> Height . . . . 9. 60 ' x 0 17 = 1 . 63 gallons (1 well volume) <br /> 3 x 1 . 63 gallons = 4. 89 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 /> 4 : 52 0 77 0 7 . 25 2900 <br /> 4 : 58 1 . 75 75 . 6 7 13 2770 <br /> 5 . 03 3 . 50 71 2 7 . 03 2670 <br /> 5 . 07 5 . 25 73 . 9 7 .02 2640 <br /> Contaminant Odor' None <br /> Turbidity Level : Low to moderate, water light-brown in <br /> color <br /> Sheen on Water No <br /> Time of Sample Collection 5 : 09 pm <br /> witnessed by : No witness <br /> Samplers Signature: -E—, <br /> Page 12 <br />