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Case Studies > Haddam Demonstration Site > Site Research

Site Research

To date, monitoring and research has been completed for the rain garden demonstration site only. Learn more about the rain garden research below.

Rain Garden Research & Results

The negative impact of urban areas on water quality is a well-documented phenomenon. Rain gardens, or bioretention areas, were developed in Prince George's County, Maryland as part of Low Impact Development (LID) to reduce nonpoint source pollution.

The paired rain gardens located at the Haddam demonstration site were sized to contain one inch of roof runoff. Monitoring for flow and pollutants was performed by Michael Dietz and John Clausen in the Department of Natural Resources Management and Engineering at the University of Connecticut, from November 2002 through December 2004. Monitoring has ceased, but the gardens continue to be used as part of the sustainable landscape demonstration site through the NEMO program.

Learn More

First year results: Email Mike for a link to the article.
Dietz, M. E., and Clausen, J. C. 2005. A field evaluation of rain garden flow and pollutant treatment. Water, Air and Soil Pollution, Vol. 167, 123-138.

Second year results in print: Go to Environmental Science and Technology website.

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