Storm Flow from First-Flush Precipitation in Stormwater Design
Publication: Journal of Irrigation and Drainage Engineering
Volume 130, Issue 4
Abstract
Regulations for mitigating nonpoint source pollution from urban areas often include a requirement for treatment of a first-flush depth of stormwater. When the stormwater treatment technology requires specification of a design flow rate, the first-flush depth must be related to a first-flush flow rate. This paper describes a methodology to determine the relation between accumulated storm depth and corresponding flow to a treatment device for small, urban watersheds. The approach uses the rational method under the assumption that the time-of-concentration is small. Intensity–frequency relations, expressed in the form of return periods and associated intensities, were determined using a partial duration frequency analysis of regionalized precipitation data. The results of the method can be used to determine the flow rate to a treatment device that will meet a specified return period for a first-flush depth. The method is demonstrated using 13 years of 15-min data from seven Massachusetts precipitation stations.
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References
Bertrand-Krajewski, J. L., Chebbo, G., and Saget, A.(1998). “Distribution of pollutant mass vs volume in stormwater discharges and the first flush phenomenon.” Water Res., 32(8), 2341–2356.
Deletic, A.(1998). “The first-flush load of urban surface runoff.” Water Res., 32(8), 2462–2470.
Field, R., et al. (1998). “Urban wet-weather flow management: research directions.” J. Water Resour. Plan. Manage., 124(3), 168–180.
Haan, C. T., Barfield, B. J. and Hayes, J. C. (1994). Design hydrology and sedimentology for small catchments, Academic, New York.
Hosking, J. R. M. (2000). “Fortran routines for use with the method of -moments, Version 3.03.” Research Rep. RC20525, IBM Research Division, Yorktown Heights, N.Y.
Hosking, J. R. M., and Wallis, J. R. (1997). Regional frequency analysis: An approach based on -moments, Cambridge University Press, Cambridge, England.
Lee, J. H., and Bang, K. W.(2000). “Characterization of urban stormwater runoff.” Water Res., 34(6), 1773–1780.
Massachusetts Dept. of Environmental Protection (MADEP) (1997). “Stormwater Management, Volume One: Stormwater Policy Handbook.” State of Massachusetts Publication No. 17871-250-1800-4/97-6.52-C.R.
Stedinger, J. R., Vogel, R. M., and Foufoula-Georgiou, E. (1992). “Frequency analysis of extreme events.” Handbook of hydrology, D. R. Maidment, ed., McGraw-Hill, New York.
Wilks, D. S., and Cember, R. P. (1993). “Atlas of precipitation extremes for the Northeastern United States and Southeastern Canada.” Northeast Regional Climate Center Publication No. RR 93-5, Cornell University, Ithaca, N.Y.
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Copyright © 2004 American Society of Civil Engineers.
History
Received: Nov 25, 2002
Accepted: Sep 3, 2003
Published online: Jul 15, 2004
Published in print: Aug 2004
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