Overflow Risk Analysis for Stormwater Quality Control Basins
This article has a reply.
VIEW THE REPLYPublication: Journal of Hydrologic Engineering
Volume 7, Issue 6
Abstract
The operational cycle of a stormwater quality control basin can be divided into the waiting period between events and the filling and draining period during an event. In this study, an inherent overflow risk is defined as the probability of having a large event exceed the basin storage capacity. Such a probability is prescribed by the basin storage capacity and the local distribution of rainfall event depths. An operational overflow risk is defined as the probability of having the basin overwhelmed by a subsequent storm event during the draining process. An operational risk is found to be dependent on watershed runoff coefficient, basin drain time, local average rainfall event depth, and average rainfall interevent time. In practice, the selection of a basin drain time is a tradeoff between the removal of suspended solids in stormwater and the overflow risk. The concept of “the longer, the better” applies to the sedimentation process, but concern for the overflow risk requires that the basin drain as fast as possible. This paper presents a design method by which the overflow risk associated with a basin storage volume can be evaluated for various drain times. The mathematical models developed to describe the distribution of rainfall interevent time and the runoff capture curve provide good agreement with the long-term continuous rainfall data recorded in seven metropolitan areas in the United States. The risk-based approach developed in this study provides a quantifiable basis for making the decision on the operation of a stormwater quality control basin.
Get full access to this article
View all available purchase options and get full access to this article.
References
Bedient, P. B., and Huber, W. C. (1992). Hydrology and floodplain analysis, 2nd Ed., Addison Wesley, New York.
Environmental Protection Agency (EPA). (1986). “Methodology for analysis of detention basins for control of urban runoff quality.” EPA440/5-87-001, Washington, D.C.
Frederick, R. H., Myers, V. A., and Auciello, E. P. (1977). “Five to 60-minute precipitation frequency for the eastern and central United States.” NOAA Technical Memo NWS HYDRO-35, National Weather Service, Silver Spring, Md.
Guo, J. C. Y., and Hughes, W.(2001). “Storage volume and overflow risk for infiltration basin design.” J. Irrig. Drain Eng., 127(3), 170–175.
Guo, J. C. Y.(1999). “Detention storage volume for small urban catchments.” J. Water Resour. Plan. Manage. 125(6), 380–382.
Guo, J. C. Y., and Urbonas, R. B.(1996). “Maximized detention volume determined by runoff capture rate.” J. Water Resour. Plan. Manage. 122(1), 33–39.
Hershfield, D. M. (1961). “Rainfall frequency atlas of the United States for durations from 30 minutes to 24 hours and return periods from 1 to 100 years.” Technical Paper 40, Weather Bureau, U.S. Department of Commerce, Washington, D.C.
Mays, L. W. (2001). Stormwater collection systems design handbook, McGraw-Hill, New York.
U.S. Water Resources Council. (1981). “Flood flow frequency.” Bull. 17A and B, U.S. Government Printing Office, Washington, D.C.
Woolhiser, D. A., and Pegram, G. G. S.(1979). “Maximum likelihood estimation of Fourier coefficients to describe seasonal variations of parameters in stochastic daily precipitation models.” J. Appl. Meteorol. 18, 34–42.
Wanielista, M. P., and Yousef, Y. A. (1993). Storm water management, Wiley, New York.
Information & Authors
Information
Published In
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Jul 11, 2001
Accepted: Apr 19, 2002
Published online: Oct 15, 2002
Published in print: Nov 2002
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.