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• Well Monitoring Form <br /> Client : Pestana Trust <br /> Site Address : 275 Grant Line, Tracy, CA <br /> Date- December 2 , 1994 <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: 18 . 04 ' Monitoring Well : MW-3 <br /> Depth to Water: 7 . 56 ' Purge Method: Disposable Bailer <br /> Water Column <br /> Height . . . . . . 10 . 48 ' x 0 . 17 = 1 . 78 gallons (1 well volume) <br /> 3 x 1 . 78 gallons = 5. 34 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 : 52 0 66. 3 7 . 78 3 . 55 <br /> 11 . 57 2 0 66 . 5 7 . 77 3 57 <br /> 12 :00 4.0 67 . 5 7 . 77 3 . 62 <br /> 12 : 05 6 . 0 67 . 5 7 . 77 3. 60 <br /> Contaminant Odor : None <br /> Turbidity Level : Slightly turbid 1 . 5 to 6 . 0 gallons <br /> Sheen on Water : No <br /> Time of Sample Collection: 12 :07 <br /> Witnessed by: No Witness <br /> • Sampler ' s Signature ; \j. Wp <br /> * Mr . Don Johnson assisted with sampling <br /> i <br />