Document Type thesis Author Name Elbag Jr., Mark A. URN etd-050306-155834 Title Impact of Surrounding Land Uses on Surface Water Quality Degree MS Department Civil & Environmental Engineering Advisors Jeanine D. Plummer, Advisor John Bergendahl, Committee Chair Keywords Conductivity pH Dissolved Oxygen UV absorbance Source Water Surface Water Dissolved Organic Carbon Total Organic Carbon Particle Counts Turbidity E. coli Fecal Coliforms West Boylston Brook Wachusett Reservoir source water protection surface water protection Date of Presentation/Defense 2006-05-03 Availability unrestricted
Source water protection is important to maintain public health by keeping harmful pathogens out of drinking water. Non-point source pollution is often times a major contributor of pollution to surface waters, and this form of pollution can be difficult to quantify. This study examined physical, chemical, and microbiological water quality parameters that may indicate pollution and may help to identify sources of pollution. These included measures of organic matter, particles, and indicator organisms (fecal coliforms and E. coli). The parameters were quantified in the West Boylston Brook, which serves as a tributary to the Wachusett Reservoir and is part of the drinking water supply for the Metropolitan Boston area. Water quality was determined over four seasons at seven locations in the brook that were selected to isolate specific land uses. The water quality parameters were first analyzed for trends by site and by season. Then, a correlation analysis was performed to determine relationships among the water quality parameters. Lastly, ANOVA analyses were used to determine statistically significant variations in water quality along the tributary.
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