Use of geospatial techniques and chemical analysis to track contaminants

CHED 864

Adam Raffaele, William W. Montgomery, and Kenneth Yamaguchi.
Fairview Lake, a small rural lake in northwestern New Jersey, is home to a large YMCA camp and a small community of residents. Reported algal blooms in the 1970s and 1980s prompted water quality studies that suggested that excess nutrients were entering the lake. The YMCA installed a large water treatment facility, and the incidence of algal blooms has decreased. However, recent studies carried out near the mouths of three influent streams indicate the presence of fecal coliform bacteria “hotspots”. These conditions set the stage for an interdisciplinary Chemistry/Geoscience study that involved GPS positioning and GIS mapping of water samples from influent streams, a wetland, and an effluent stream. Inorganic and organic constituents were measured and mapped to determine types of contaminants present, as well as potential sources.