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i Mr. Brian Millman (AGE) <br /> GLDM1Geweke <br /> October 16,. 2000 <br /> I Page.2 <br /> 1 ,. <br /> COMMENT. .. . , <br /> .As.for the previous sampling -event,_there appears.to.be little substantive change.with regard <br /> . to physicochemical'values:associated=with the samples tested: In general, physicochernical' <br /> values remain lowerthan optimal for microbial growth and biodegradative- activity; however., <br /> both general and selective microbial subpopuiations ;were recovered, -suggesting. at least a <br /> modest,levef of ongoing biodegradative activity'.` In,fact, l oth'samples yielded relatively high <br /> proportion of selectivebiodegraders for this sampling event, suggesting improved <br /> bioavailability of contaminant (possibly via recharge and/or leaching activity). This finding may <br /> also indicate.the lowering of competing carbon. substrates, facilitating the development of a <br /> higher,proportion of target contaminant biodegraders. As suggested in previous reports, <br /> supplementation of the- water with appropriate bionutrients will likely improve microbial . <br /> population dynamics and enhance biodegradative activity. <br /> Should you have any questions concerning these results, please do not hesitate to contact-me. <br /> AKK:em <br />