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Well Monitoring Form <br /> Client : Pestana Trust <br /> Site Address : 275 Grant Line Road, Tracy , CA <br /> Date: June 8 , 1993 <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: 17 . 18 ' Monitoring Well . MW-3 <br /> Depth to Water: 7 34 ' Purge Method: Submersible Pump <br /> Water Column <br /> Height 9 84 ' x 0 . 17 = 1 . 67 gallons (1 well volume) <br /> 3 x 1 67 gallons = 5 . 01 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 /> 12: 44 0 71 . 1 8 23 2800 <br /> 12 , 55 2 . 25 71 . 2 7 . 22 3220 <br /> 1. 04 4 50 70 7 7 . 22 3180 <br /> 1 14 6 . 75 69. 6 7 . 26 3190 <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 : 1 : 26 pm <br /> Witnessed by No witness <br /> Samplers Signature .� <br /> 0 <br /> I <br /> Page 11 <br />