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' Mr. Kevin McKibben <br /> Advanced GeoEnvironmental (North) <br /> GLDM <br />' December 29, 1997 ; <br /> Page 2 <br />' COMMENT <br />' Data from sample analyses indicate no substantive changes in physicochemical and <br /> microbiological criteria since the previous sampling event. Bionutrient exhaustion continues <br />' to exert a dominant influence on the referenced results, with levels of biologically available <br /> oxidized and reduced forms of nitrogen remaining well below those levels necessary to <br /> maintain even moderate levels of target-specifc biodegradative activity. As before, this <br /> sampling also indicated that phosphates, necessary for microbial metabolism and synthetic <br />' activity, are fully depleted. While some degree of residual microbial activity remains, it is once <br /> again recommended that efforts be undertaken to resupplement necessary bionutrients which <br /> would stimulate the growth and biodegradative activity of the ambient indigenous microbial <br />' population. <br /> Should you have any questions concerning this information, please do not hesitate to contact <br /> me. <br />' AKK:ch <br />