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Well Monitoring Form <br /> Client Pestana Trust <br /> Site Address 2360 East Street , Tracy , CA <br /> Date August 18 , 1993 <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 64 ' Monitoring Well ' MW-1 <br /> Depth to Water 7 43 ' Purge Method Disposable Bailer <br /> (bundle of 3) <br /> Water Column <br /> Height 12 21 ' x 0 66 = 8 . 06 gallons ( 1 well volume) <br /> 3 x 8 06 gallons = 24 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 (Degrees F) (mmhos/cm) <br /> --------------------------------------------------------- <br /> 12 07 0 78 1 6 71 2 81 <br /> 12 21 8 25 74 3 6 . 84 2 94 <br /> 12 37 16 50 75 6 6 86 2 83 <br /> 12 49 24 75 73 4 6 90 2 82 <br /> Contaminant Odor Malodorous <br /> Turbidity Level Low to moderate <br /> Sheen on Water No <br /> Time of Sample Collection 12 50 pm <br /> Witnessed by Mr Michael Infurna (purging only) <br /> Purge water was yellowish-gold in color gradually becoming <br /> clear after approximately 6 gallons had been removed from <br /> the well Purge water contained small pieces of clear <br /> plastic <br /> Sampler ' s Signature �""�r <br />