APPLICATION OF MICROBIAL ENUMERATION TECHNIQUE TO EVALUATE THE OCCURRENCE OF NATURAL BIOREMEDIATION

Natural groundwater bioremediation evaluation. Three gasoline spill sites were selected to accomplish the following objectives : 1 - assess the feasibility of applying the microbial enumeration as the supplemental techniques to study the occurence of natural bioremediation and its effects on contaminant removal, 2 - study the distribution of geochemical parameters along the vertical distribution of the 3 aquifers, 3 - determine the percent loss due to biodegradation, 4 - identify the correlations between aquifer parameters, microbial populations, contaminant biodegradation efficiency, and grain-size distribution.