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Detachment Of Eschericia Coli From Saturated Porous Media In Laboratory Columns, Jessica L. Strauss
Detachment Of Eschericia Coli From Saturated Porous Media In Laboratory Columns, Jessica L. Strauss
Master's Theses and Capstones
Recent studies suggest that bacterial contamination of groundwater is a national health concern in the United States. The movement of bacteria-laden water through soil and aquifer sediments often results in significant removal of bacteria from the aqueous phase, however, elevated concentrations of indicator organisms in drinking water aquifers are often detected and may be due, in part, to the slow release of sediment-associated bacteria. This condition, referred to as tailing, is caused by the detachment of previously attached cells over time, with aqueous concentrations often orders of magnitude below the peak concentration. Extended tailing has often been observed in laboratory …
A Decision Support System (Dss) For Stormwater Management System Selection, Angie Shelley Miles
A Decision Support System (Dss) For Stormwater Management System Selection, Angie Shelley Miles
Master's Theses and Capstones
On December 9, 1999 the US EPA published Phase II of the Clean Water Act. Under Phase II all existing municipal separate storm sewer systems (MS4s) located in “urbanized areas” (as defined by the Bureau of the Census) and construction activities that disturb more than or equal to one acre but less than five acres are required to attain a NPDES permit. The MS4 entities are obligated by Phase II to develop, institute and enforce stormwater management programs. These programs must include the selection and implementation of stormwater best management practices (BMPs) to reduce the pollutant load to receiving waters. …