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TABLE 5 <br /> AIR SPARGING PILOT TESTING DATA <br /> Compass Group USA, Inc. <br /> 1500 Shaw Road <br /> Stockton, California <br /> AS-Well IAS-1) Observation Well MW-4 <br /> Clock Sparging Pressure PID Depth to Dissolved <br /> Time Pressure Reading Reading Water Oxygen <br /> Date (Elasped) (psig) (in w c) (ppmv) (feet) (mg/1) <br /> 02/27/021 9 00(0) 4 0 000 58 5277 3 82 <br /> 10 00(1 00) 4 0 000 77 5275 3 96 <br /> 11 00(2 00) 4 NM NM NM NM <br /> 12 00(3 00) 4 0 000 37 5272 3 60 <br /> 1 00(4 00) 4 0 000 39 5270 3 76 <br /> 2 00(5 00) 4 0 000 3 5 5268 NM <br /> 3 00(6 00) 4 0 000 32 5268 341 <br /> 4 00(7 00) 4 0 000 3 1 5268 NM <br /> 5 00(8 00) 4 NM NM NM NM <br /> 02/28/02 8 30 (23 30) 4 0 000 30 5278 261 <br /> • <br /> psig-pounds per square inch, gauge <br /> in w c - inches of water column <br /> ppmv-parts per million,volume <br /> PID-Photo-Iomzation Detector <br />