Evaluating the Accotink Creek Stream Restoration Project for Improving Water Quality, In-Stream Habitat, and Bank Stability
Increased urbanization results in a larger percentage of connected impervious areas which can contribute large quantities of stormwater runoff, debris and pollutants to receiving waters. Increased runoff volume causing stream channel degradation affects the physical, chemical, and biological integrity of the stream. Stream bank erosion can lead to bank instability, property loss, infrastructure damage, and increased sediment loading. The United States Environmental Protection Agency (US EPA) and United States Geological Survey (USGS) used discrete and continuous monitoring techniques to evaluate the effectiveness of stream restoration to decrease sediment loads and improve bank stability, biological integrity, and water quality in Accotink Creek, Fairfax, Virginia. Results of pre- and post monitoring for one year suggest a trend towards biological improvement may exist as indicated by invertebrate density. However, most data support little change with unmanaged stressors likely limiting shorter and longer term and longer term benefits.
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Document Type: Research Article
Publication date: 2008-01-01
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