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Well Monitoring Form <br /> Client Pestana Trust <br /> Site Address : 275 Grant Line , Tracy , CA <br /> Date February 14, 1994 <br /> Agency Representative. Ms Mary Meays , Senior REHS <br /> San Joaquin County PHS/EHD <br /> Representative Contacted Prior to Sampling : Yes <br /> Total Well Depth• 16 06' Monitoring Well • MW-1 <br /> Depth to Water : 7 . 77 ' Purge Method . Disposable Bailer <br /> Water Column <br /> Height . . 8 . 29 ' x 0 . 17 = 1 41 gallons (1 well volume) <br /> 3 x 1 . 41 gallons = 4 . 23 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 /> 12 53 0 67 5 7 30 3 . 03 <br /> 12 : 57 1 50 69 1 7 18 3 . 26 <br /> 13 .02 3 00 70 . 6 7 15 3 . 29 <br /> 13 11 4 50 70 . 9 7 . 14 3 . 27 <br /> Contaminant Odor: None <br /> Turbidity Level : Clear, becoming somewhat <br /> moderately turbid at 3 gallons <br /> Sheen on Water : No <br /> Time of Sample Collection: 13 : 13 <br /> Witnessed by: Ms . Mary Meays <br /> Sampler 's Signature : J UPP <br />