2005 BES Annual Meeting Presentation and Poster Abstracts
Watershed 263 Small Headwater Storm Drain Catchment Hydrology: Update on Water Quality Results
Belt, K. T., Pouyat, R. V., Stack W. P., Heisler, G., Groffman, P.M., Ghosh, U., Taylorson, A., Schindler, D. and Zhou, J.
Abstract: The hydrology of two small headwater storm drain catchments in Watershed 263 (Baltimore City, MD) are being studied with continuous temperature recorders, stage and velocity gauges, and automated flow paced samplers. The basic objectives of the study are to follow these two neighboring catchments long term to evaluate changes due to the introduction of various structural and operational BMPs in: 1) alterations in flow volume and rate, 2) changes in water quality constituents, and to examine source areas and the utility of high resolution hydrologic and ecological models in evaluating BMP effectiveness over time. We present preliminary dry weather and storm data collected at the Baltimore and Lanvale Street gauging stations. These data reveal a dynamic thermal system, high bacterial concentrations and large nutrient and metal loads, especially at the Baltimore St. site, which has a higher impervious surface cover. We describe the current water quality dataset, including bacterial, nutrient, and heavy metal results and discuss how these two inner city sites compare to suburban, forested and agricultural catchments in the Baltimore metropolitan area. We also describe efforts to install meteorological equipment and discuss various aspects of estimating stormwater loads.