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m. <br /> (C) 1989 BIO NATIONAL CORPORATION <br /> 8.2.2 All fluids are either entrained in the piumo where the <br /> bioremddiation process primarily occurs, or returned to the surface <br /> treatment system for reinsertion or disposal. <br /> 8.2.3 Each biowell is equipped for bottom and top sampling by removal <br /> of the appropriate well cap and insertion of a probe to draw out fluids. <br /> A permanent sensor or gage can be installed in any of the biowells. <br /> 8.3 MECHANICAL. AND HYDRAULIC COWROLS — VACUUM, FLUID RECO'JYMQ <br /> AND OZONE TREATMIM <br /> 8.3.1 VACUUM <br /> The system will be equipped with vacuum and flow reading instruments <br /> and adjusted with manual valves until optimum flows are obtainee, <br /> 8.3.2 FLUID RECOVERY <br /> 8.3.2.1 There will be float operated submersible pumps at selected <br /> points in the system, automatically extracting groundwater and other <br /> excess fluids as they accumulate. <br /> 8.3.2.2 The venting blowells are each equipped for transfer of excess <br /> �= inoculum back to the bioreactor. <br /> i <br /> 5.3.3 OZONE TREATMENT <br /> Ozone is aspirated into the vapor stream at a controlled rate measured <br /> in gme/hour, adjusted to provide zero volatiles and zero ozone readings <br /> - at a point 18" below the top of the -rent stark. <br /> 12 HQLT805 <br />