An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Charles River

Results of Color and Clarity Monitoring in the Charles River During Spring and Summer of 2000

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.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.