This report provides results of the color and clarity monitoring effort in the Charles River during spring and summer of 2000. The goals of the monitoring effort were to identify the main sources affecting impaired visibility in the Charles River and to identify temporal and spatial trends in the concentrations of those factors.

• Clean Charles 2005 Initiative: Results of Color and Clarity Monitoring in the Charles River During Spring and Summer of 2000 (PDF)(37 pp, 2 MB, December 2003)