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Showing 1 to 20 of 22 for “"Stormwater Quality"”.
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Stormwater quality management strategy: Peters Creek watershed
The effect of stormwater runoff on the water quality of Peters Creek was investigated. Creek water was sampled at rural, suburban and urban sites. Background and runoff samples were analyzed for sediment, nutrient and heavy metal concentrations. The area upstream of the suburban site was found to …
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Characteristics of urban development and associated stormwater quality
… cover increase the quantity and worsen the quality of stormwater runoff, which can seriously impair receiving waters. It is known that there is considerable variability in runoff quantity and quality between rain-to-rain events due to rainfall spatial variability. In addition, runoff …
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A Bayesian stormwater quality model and its application to water quality monitoring
<p>Stormwater runoff is a topic of research that over the years has increasingly grown due to its impact on our water resources. Treatment systems have been developed to mitigate this impact by preserving the pre-development hydrologic and water quality characteristics of the drainage areas. …
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The performance of an underground storage structure for urban stormwater quality management
… pollutant removal performance of an underground stormwater detention facility. The facility was located beneath the parking lot of a retail shopping mall in Prince William County, Virginia. The study methodology incorporated automatic inflow and outflow monitoring stations containing flow …
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Public knowledge and stormwater quality in Cape Town, South Africa: a case study of the Liesbeek River
It is widely recognized that stormwater is one of the main contributing factors to the deterioration of water quality in urban rivers. The problem is partly caused by the design of conventional stormwater infrastructure, which is intended to remove runoff as quickly and efficiently as possible. In …
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Improving Predictions of Stormwater Quantity and Quality through the Application of Modeling and Data Analysis Techniques from National to Catchment Scales
… eutrophication, and harmful algal blooms. Stormwater control measures (SCMs) are used to address these concerns and are designed based on inflow loads. Thus, estimating nutrient and sediment loads from developed watersheds is vitally important for meeting the impacts of urbanization. Today, …
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Evaluating the potential for Blue-Green Infrastructure benefits using the case study of stormwater ponds in Cape Town, South Africa
… as rivers, canals, ponds, streams, wetlands and stormwater drainage provision, can be transformed to provide multiple benefits as BGI. This study presents a Multi-Criteria Analysis (MCA) methodology to evaluate the potential for existing BI to provide multiple benefits as BGI. The MCA methodology …
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Simulation and design of diversion and detention system for urban stormwater management
… outflow and pollutant concentration for urban stormwater quality and quantity management. This model is designed for both the analysis and design of the system.
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Concentration of Suspended Solids and Nutrients in Overland Flow in Suburban Philadelphia Watersheds
… excess sediment and nutrients. To improve water quality, the Upstream Suburban Philadelphia Cluster of the Delaware River Watershed Initiative (DRWI) established focus areas within the region for targeted implementation of stormwater control measures and community outreach about stormwater …
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Hydraulic Characterization of Interlocking Concrete Permeable Pavement
… of permeable pavements are vast and include stormwater quantity reduction, stormwater quality improvement, urban heat island mitigation, and groundwater recharge, among others. Permeable Interlocking Concrete Pavements, PICP explicitly infiltrate water, a new concept to engineering practice …
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CHARACTERIZATION OF URBAN STORM RUNOFF BY MONITORING SEDIMENTS AND RIPARIAN VEGETATION
Difficulties associated with monitoring urban stormwater quality present considerable challenges to stormwater managers in the arid southwest. Complexities arise from the infrequent occurrence of storm events, their highly localized extent, and the short duration of storm hydrographs. The presence …
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Evaluating the Effectiveness of Regulatory Stormwater Monitoring Protocols on Groundwater Quality in Urbanized Karst Regions
<p>Non-point pollution from stormwater runoff is one of the greatest threats to water quality in the United States today, particularly in urban karst settings. In these settings, the use of karst features and injection wells for stormwater management results in virtually untreated water being …
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The critical success factors for landscape management of operations on sustainable urban drainage system (SuDS) projects
… these impacts through a new paradigm in urban stormwater management, referred to as Sustainable Urban Drainage Systems (SuDS), which describes a strategic sustainable approach to the management of stormwater quality and quantity. Various typologies are used individually or in configurations to …
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Lateral outflow from supercritical channels
Stormwater pollutants caused by urban runoff are a major concern for the Albuquerque Metropolitan Arroyo Flood Control Authority (AMAFCA), and other flood control authorities, as stormwater channels eventually are discharged into natural waterways. One method of improving stormwater quality is …
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Analysis of an Urban Stormwater Bioretention Management Practice in Prince William County, Virginia
The performance of an urban stormwater bioretention management practice in the Kingsbrooke Subdivision of Prince William County, Virginia was examined over a one-year period. Bioretention is a relatively new urban stormwater best management practice (BMP) intended to mimic the pollutant-removal …
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Evaluation Of Proprietary Stormwater Treatment Devices In Field And Laboratory Conditions
Proper stormwater management acknowledges both water quantity and water quality. Historically, stormwater quantity and quality have been separately considered; runoff was routed as quickly as possible into the nearest body of water. Although this alleviates potential flooding concerns, water …
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Evaluation of stormwater control measures for the removal and fate of legacy and emerging contaminants
… pollutant inputs, nonpoint sources such as stormwater runoff continue to transport contaminants and contaminated sediments into receiving waters. Stormwater control measures (SCMs) are designed to reduce and treat this runoff before discharge, but their effectiveness depends on both the type …
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Use of Stormwater as an Alternative Supply Source
… resources. At the same time, the management of stormwater is being re-examined with the focus changing from the traditional practice of rapid disposal of stormwater (to reduce the risks of flooding) to utilisation of stormwater as an alternative water supply source. The focus of this thesis is …
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Reduction of pollution levels in the Chatty River through Sustainable Drainage Systems: A case study of the Bethelsdorp River sub-catchment
… residential areas resulting in pollution from stormwater runoff, litter, and raw sewage discharge. There are growing informal settlements and limited agriculture. In recent years, the high pollution level in the Swartkops estuary has led to the reduction and even halting of various social and …
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Investigation of Low Impact Development Practices For Coastal South Carolina: Oak Terrace Preserve
… development leads to increases in the volume of stormwater and subsequent contributions of non-point source pollution to coastal water bodies (e.g., tidal creeks). State and local agencies have developed regulations to reduce the impact of stormwater and non-point source pollution on receiving …
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