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A M <br /> MOM <br /> c — <br /> efficiently sweep the polluted area and enable the indigenous <br /> (� microbes to metabolize and destroy all contaminants. Proposed <br /> locations and uses of new wells discussed in the following <br /> paragraph may be changed based upon the results of aquifer tests <br /> and groundwater flow modeling. <br /> Three new 4" monitor wells will be drilled and completed outside <br /> the area to be affected by in situ bioremediation. These wells <br /> €: are 22P, 23P, and 24P. Well 25P will be drilled for aquifer <br /> control and recovery of nutrient solutions. - .4ells 26P and 27P <br /> will be drilled to allow nutrient injection �In, the north and <br /> south sectors of the contaminant .plume. a `o l \�P will allow <br /> shallow injection to clean up polluted Rb11s above the water <br /> table. dells will be drilled inthe order 22P, 23P, 24P, 25P, <br /> 26P, 27P, and 28P. .;All, n.ew''%welt locations, depths , and screened <br /> itervals .are shown% FJ ure 11 and given in Table 6. <br /> Construction detaiIs�ie~listed in Appendix E. <br /> NUTRIENT CIRCULATION SYSTEM <br /> The nutrient addition system is designed to insure nutrient flow <br /> throughout the; contaminated zone. This allows the nutrient <br /> p ; amended water to follow the path of the original spilt., and . <br /> provide nutrients 'to microbes which are present in the soil. . <br /> Nutrient and hydrogen peroxide additions will take place through r <br /> the proposed' injection wells designated in Tables 5 and 6. . . <br /> Solutions .will be recovered through wells NW-19 and 26P. <br /> Nutrient flow directions will be controlled radially inward <br /> t; toward the center of .the plume by careful adjustment of pumping <br /> and addition rates. <br /> r <br /> .. -30- <br /> it <br /> { <br /> i .. <br />