Scientific Investigations Report 2010–5160
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First posted August 4, 2011 For additional information contact: Part or all of this report is presented in Portable Document Format (PDF); Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge. |
Horwatich, J.A., Bannerman, R.T., and Pearson, Robert, 2011, Highway-runoff quality, and treatment efficiencies of a hydrodynamic-settling device and a stormwater-filtration device in Milwaukee, Wisconsin: U.S. Geological Survey Scientific Investigations Report 2010–5160, 75 p.
Abstract
Introduction
Purpose and Scope
Site Description
Description of the Hydrodynamic-Settling and Stormwater-Filtration Devices
Hydrodynamic-Settling Device
Stormwater-Filtration Device
Sampling Methods
Measurement of Precipitation Depths
Calibration of Flow
Water-Quality Sampling
Particle-Size Analyses
Monitoring Complications
Quality Control
Evaluation of the Hydrodynamic-Settling and Stormwater-Filtration Devices
Precipitation Data
Number of Precipitation Events with Water-Quality Data
Flow Data
Particle-Size Distributions
Summary of Inlet and Outlet of Chemical Concentrations
Efficiency Calculations
Efficiency Ratio
Summation of Loads
Total Suspended-Solids Reductions in Other Field-Verification Studies of the Hydrodynamic-Settling and Stormwater-Filtration Devices
Mass Balance of Sediment Retained in the Devices
Summary and Conclusions
Acknowledgments
References Cited
Appendix 1. Previous Studies
Appendix 2. Hydrodynamic-Settling Device
Appendix 3. Stormwater-Filtration Device