The Updated Stormwater Quality Database (NSQD), Version 3
Abstract:The University of Alabama and the Center for Watershed Protection were awarded a U.S. Environmental Protection Agency, Office of Water 104(b)3 grant in 2001 to collect and evaluate stormwater data from a portion of the NPDES (National Pollutant Discharge Elimination System) MS4 (municipal separate storm sewer system) stormwater permit holders. Version 3 of this database has recently been completed under continued 104(b)3 support from the EPA. These stormwater quality data and site descriptions were collected and reviewed to describe the characteristics of national stormwater quality, to provide guidance for future sampling needs, and to enhance local stormwater management activities in areas having limited data. The monitoring data collected over nearly a ten-year period from more than 200 municipalities throughout the country have a great potential in characterizing the quality of stormwater runoff and comparing it against historical benchmarks. This project is creating a national database of stormwater monitoring data collected as part of the existing stormwater permit program, providing a scientific analysis of the data, and providing recommendations for improving the quality and management value of future NPDES monitoring efforts. Version 3 contains data from more than 8,500 events from about 100 municipalities throughout the country, representing several land uses.
This paper also presents summaries of several prior analyses using this data to address some interesting questions pertaining to sampling and variations in stormwater quality associated with land use and other site factors.
Document Type: Research Article
Publication date: January 1, 2008
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