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FGL ENVIRONMENTAL <br /> GROUNDWATER SAMPLING & PURGE LOG <br /> Date: 2009/07/27 Lab ID #: STK0936708 Client: Veolia Water NA <br /> Tech. Name: Ken Moffitt Project Name/No: Quarterly <br /> Well No: MW-1 Well Completion Depth: 27.42 ft. <br /> Depth to Water(sounded depth): 11.47 ft. Reference Point: North Side Top Casing <br /> Height of Water Column: 15.95 ft. Casing Diameter: 4 in. <br /> Casing Volume: 10.36 gal = Height of Column x Volume/ft. (2"=0.163, 4"=0.650, 6"=1.43 gal/ft) <br /> Amount to be purged: 31.08 gal = Casing Volume x 3 (volumes required) <br /> Purge Rate: 2.0 gal Purge Method: ES-60 <br /> Time Purge Vol Gal pH EC Temp °C ORP Turb Comments <br /> 0835 Start <br /> 0841 12.00 6.63 3045 19.20 Clear <br /> 0846 22.00 6.63 3046 19.20 <br /> 0851 32.00 6.62 3046 19.20 <br /> 0852 Sampled <br /> 0854 Off <br /> Total Purge Time: 16 Minutes Total Purge Volume: 32 gal <br /> Recharge Depth: 11.53 ft. Time: 0859 Sampling Method:Discharge directly from pump <br /> Decontamination Procedure: Cleaned at Laboratory prior to use and disinfected in field <br /> Notes: <br />