Urban Wet‐Weather Flows

Abstract

This literature review summarizes significant technical literature published in 2010 and 2011 in the major areas of urban wet-weather flows. The review covers a range of topics including characterization, pollution sources, monitoring and sampling, surface and groundwater impacts, mathematical modeling tools and decision support systems, regulatory policies, and control and treatment technologies. Some gaps in the literature compilation have also been identified and presented to support future research efforts.

Reducing combined sewer overflows by using outlet controls for Green Stormwater Infrastructure: Case study in Richmond, Virginia

“…A variety of approaches exists to help assess wet weather infrastructure (Rangarajan et al, 2012). Two of these approaches include the selection of a design event, or using continuous simulation.…”

Distinct Enantiomeric Signals of Ibuprofen and Naproxen in Treated Wastewater and Sewer Overflow

“…3,4 However, in some urban waterways an additional source may be localized untreated sewage leakage or overflow from sewerage systems. 5,6 An assessment of the significance of these sources is required to properly distinguish untreated sewage contamination from discharged WWTP effluents.…”

Long-term characterization of residential runoff and assessing potential surrogates of fecal indicator organisms

“…These include planting grass swales, utilizing porous pavement, constructing infiltration trenches, and other methods that improve infiltration of runoff into aquifers while filtering out contaminants. Other strategies retain and/or detain stormwater in ponds, dry wells, and other basins for treatment or gradual release into the environment after inclement weather (Rangarajan et al, 2012;Shaver et al, 2007).…”

“…For example, a dual offline retention/detention system passes runoff water through a shallow forebay designed to collect first flush pollutants before final deposition into a larger pond capable of detaining large amounts of runoff water (Rangarajan et al, 2012). Although such a system inherently contains baseflow runoff during dry conditions, the implementation of a shallow fore bay remains unnecessary as microbial inactivation can occur in the final detention pond.…”