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Well Monitoring Form <br /> Client . Pestana Trust <br /> Site Address : 2360 East Street , 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: 19 . 56 ' Monitoring Well - MW-2 <br /> Depth to Water: 6 . 90 ' Purge Method- BK Hand Pump <br /> Water Column <br /> Height . . . . . . 12 . 66 ' x 0 . 66 = 8 . 36 gallons (1 well volume) <br /> 3 x 8 . 36 gallons = 25 . 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) (mmhos/cm) <br /> --------------------------------------------------------- <br /> 13: 50 0 65 . 0 7 . 53 3 . 11 <br /> 13 : 52 8 4 67 . 6 7 . 60 3 . 32 <br /> 13 55 16 .8 67 . 2 7 . 78 3 . 30 <br /> 13 : 58 25 . 2 67 . 3 7 . 82 3 . 27 <br /> Contaminant Odor* Odor noted upon removal of well cap <br /> Turbidity Level : Pale yellow color to purge water. <br /> Sheen on Water: No <br /> Time of Sample Collection: 14 : 00 <br /> Witnessed by: No Witness <br /> * Sampler ' s Signature : 'j-p-Op <br /> * Mr. Don Johnson assisted with sampling <br />