Highway stormwater runoff represents a significant source of dissolved copper to surface 4 waters. It is well established that even low concentrations of dissolved copper can be toxic to many 5 aquatic organisms. In the Pacific Northwest of the United States, recent research has focused on the 6 effects of low-level copper exposure to salmonids listed as threatened or endangered under the 7 End...

This guidance has been developed by integrating experience gleaned from field monitoring activities conducted by members of ASCE’s Urban Water Resource Research Council and through the development of the ASCE/EPA National Stormwater Best Management Practices Database. The manual is intended to help achieve stormwater BMP monitoring project goals through the collection of more useful and represe...

A decade of observations provided grounds for assessing the operation of one of the few stormwater treatment plants in Poland (system: screens-grit chambers-settler-retention pond) which collects effluents from 471 ha of the city. Among other aspects, the following were evaluated: treatment efficiency, relationship between the quality of treated stormwater and that of waters in the receiving bo...

Uncontrolled stormwater runoff not only creates drainage problems and flash floods but also presents a considerable threat to water quality and the environment. These problems can, to a large extent, be reduced by a type of stormwater management approach employing permeable pavement systems (PPS) in urban, industrial and commercial areas, where frequent problems are caused by intense undrained ...

This study investigated the potential effect of climate changes on stormwater pollution runoff characteristics and the treatment efficiency of a stormwater retention pond in a 95 ha catchment in Denmark. An integrated dynamic stormwater runoff quality and treatment model was used to simulate two scenarios: one representing the current climate and another representing a future climate scenario w...

The University of Minnesota is committed to the policy that all persons shall have equal Acknowledgements The Minnesota Pollution Control Agency (MPCA) provided funding for this review. The involvement of the project manager from the MPCA, Bruce Wilson, was greatly appreciated. Executive Summary Recently, there has been an increased interest in the use of infiltration as a method of managing st...

of master's thesis Author Saara Lehtinen Title of thesis Simulation of stormwater quality in an urban catchment using the Stormwater Management Model (SWMM) Department Department of Civil and Environmental Engineering Professorship Water Resources Engineering Code of professorship Yhd-12 Thesis supervisor Professor Harri Koivusalo Thesis advisor M.Sc. (Tech.) Gerald Krebs Date 10.11.2014 Number...

Urban watersheds are often sources of nitrogen (N) to downstream systems, contributing to poor water quality. However, it is unknown which components (e.g., land cover and stormwater infrastructure type) of urban watersheds contribute to N export and which may be sites of retention. In this study we investigated which watershed characteristics control N sourcing, biogeochemical processing of ni...

Stormwater quality modeling results are subject to uncertainty. The variability of input parameters is an important source of overall model error. An in-depth understanding of the variability associated with input parameters can provide knowledge on the uncertainty associated with these parameters and can assist in uncertainty analysis of stormwater quality models and decision making based on m...

Diffuse pollution sources have been recognised by the European Water Framework Directive to significantly contribute to pollution of stormwater receivers. Stormwater runoff is considered to represent diffuse pollution sources. The aim of this study was to clarify the contributions of specific sources in the urban environment to the content of organic and inorganic pollutants in stormwater. This...