The UMass Amherst Blackstone River Water Quality Study was initiated in 2004 to develop a watershed management tool for the Blackstone River basin. This effort was funded by the Upper Blackstone Water Pollution Abatement District (UBWPAD) and was conducted with the support of the Cambridge, Mass. office of Camp Dresser and McKee (CDM), now CDM-Smith. The study was initiated to enhance the overall understanding of flow and water quality characteristics of the river. The ultimate goal was to develop a tool to evaluate the impacts of waste water treatment plant effluent, the effectiveness of point source control versus non-point source management, and the effectiveness of alternative management strategies on downstream river quality.