Stormwater Management Articles

  • Most UK coastal flooding caused by moderate, not extreme storms

    Scientists at the NOC and the University of Southampton have found that the majority of instances of coastal flooding around the United Kingdom in the last 100 years have been due to moderate storm events combined with high spring tides, rather than extreme storms. Researchers have undertaken one of the most detailed assessments of extreme sea level and coastal flooding ever carried out ...

  • Potential use of ionic species for identifying source land-uses of stormwater runoff

    Identifying critical land-uses or source areas is important to prioritize resources for cost-effective stormwater management. This study investigated the use of information on ionic composition as a fingerprint to identify the source land-use of stormwater runoff. We used 12 ionic species in stormwater runoff monitored for a total of 20 storm events at five sites with different land-use ...


    By IWA Publishing

  • IECA Announces Canadian Chapter with a Nilex Twist

    In their November 3 edition, Geosynthetica.net announced the first Canadian chapter of the International Erosion Control Association Region One (IECA). Nilex is proud to have Tim ...


    By Nilex

  • SURE HOUSE: Students Design Storm-Ready Shore Home

    Every other year, collegiate teams from across the country partake in the U.S. Department of Energy’s Solar Decathlon with the challenge of designing a fully solar-powered home that fuses style, efficiency and affordability. For more than 30 students at Stevens Institute of Technology in Hoboken, New Jersey, though, those requirements were just a starting point. Entering the national ...


    By Institut für Solartechnik

  • Do storm event samples bias the comparison between sewer deposits contribution?

    Previous researches demonstrated the occurrence of unique in-sewer sediment, the organic layer, on the Marais site in Paris, capable of explaining the entire wet weather sewer production of suspended particles. Other studies on sites having no similar organic sediment, Clichy in Paris and Ecully in Lyon, demonstrated a wet weather sewer deposits contribution (SDC) to effluent pollution ...


    By IWA Publishing

  • Beaver Dam Flats ArmorFlex Pathway Reconstruction - Case Study

    ArmorFlex provides a low-disturbance, efficient and flexible solution to a flood-damaged trail. A trail system path through the Bow River floodplain in Calgary was washed-out during the city’s 2013 flood. The City of Calgary needed to make quick and lasting repairs to maintain this section as part of its larger Regional Pathway Network, an important link for commuters and ...


    By Nilex

  • Erosion and Sediment Control: Navigating NPDES Regulations, the SWPPP, and Techniques for Compliance

    Erosion and Sedimentation: Why Are They a Problem? The US Environmental Protection Agency lists sediment as the single most common pollutant in rivers, streams, lakes, and reservoirs. With all the potentially harmful chemicals and substances in the world, it seems odd to many people that sediment—dirt, essentially—is singled out as the major culprit. Yet these particles of ...


    By FINN Corporation

  • Structural improvements on hydrodynamic separators: a computational fluid dynamics approach

    Hydrodynamic separators (HDSs) have been used extensively to reduce stormwater pollutants from urbanized areas before entering the receiving water bodies. They primarily remove particulates and associated pollutants using gravity settling. Two types of HDSs with different structural configurations of the inner vortex-inducing components were presented in this study. One configuration consisted ...


    By IWA Publishing

  • Georgia city uses geospatial technology to identify assets and improve safety

    One of Georgia’s newest cities decided to go digital with CH2M - digitizing assets to manage operations and improve public safety for the city. If you’re a brand new city, you’re probably thinking what can we do to quickly make our community a better place to live? Peachtree Corners, one of Georgia’s newest cities, decided to go digital with CH2M - digitizing ...


    By CH2M Hill Companies, Ltd.

  • Funding Time Is Running Out. We Can Help Make The Most Of Your Spending.

    The Clean Water and Wastewater Fund (CWWF) is a federal program designed to support the rehabilitation and modernization of drinking water, wastewater and stormwater infrastructure. Through the CWWF, $569.5 million is being provided through federal infrastructure funding. The Province of Ontario is cost-matching contributions up to a maximum of 25% of total eligible costs. ...


    By Pure Technologies

  • Experimental study of hydraulics and sediment capture efficiency in catchbasins

    Catchbasins (also known as gully pot in the UK and Australia) are used to receive surface runoff and drain the stormwater into storm sewers. The recent interest in catchbasins is to improve their effectiveness in removing sediments in stormwater. An experimental study was conducted to examine the hydraulic features and sediment capture efficiency in catchbasins, with and without a bottom sump. ...


    By IWA Publishing

  • Hirschthal, Switzerland protected with WaStop DN1200 - Case Study

    Location: Hirschthal, Switzerland Problem: During times of high river levels, flooding occurred in the town of Hirschthal. This flooding occurred when the river level was higher than the stormwater outfall. This lead to river water pushing back up the outfall pipe, and spilling onto roads and residential areas. Solution: A DN1200 (NPS 48″) ...


    By Wapro AB

  • WaStop chosen to protect Forest View residents and property from flooding - Case Study

    Location: Forest View Customer: The Village of Forest View Problem: Originally Forest View had a combined sewer and stormwater system. As the area became popular development occurred which lead to more hard surface areas, which lead to higher runoff during rainy periods. This became such a problem that, in the 1960’s the sewer and ...


    By Wapro AB

  • Staying dry with rising tides – miami beach - Case Study

    The City of Miami Beach, Florida, USA is a beautiful resort community nestled between the Atlantic Ocean and Biscayne Bay. Miami Beach is built on natural and man-made barrier islands. Infrastructure which ensures residents and tourists in Miami Beach aren’t regularly flooded by sea water is often taken for granted however with a changing climate it has become evident to residents that ...


    By Wapro AB

  • Storm Water Plan Case Study

    Global was contracted by a local Road Commission site. The Road Commission site serves as the county level road agency, which maintains more than 1,813 miles of roads and streets and over 250 signalized intersections. The Road Commission contains six sites across the county. Each site is responsible for its particular area. The sites all include maintenance garages, diesel and gasoline ...

  • Monitoring micropollutants in the Swist river basin

    Micropollutant pathways were studied for the Swist river basin (Western Germany). The aim was to verify the effectiveness of a monitoring approach to detect micropollutants entering the river. In a separate sewer system, water was frequently found to be contaminated with micropollutants. Improper connections of sewage canals to the stormwater network seemed to be the cause of pollution. ...


    By IWA Publishing

  • Case study - Investigations of PAH pollution in stormwater stream TVARAN

    Project reference Project: Pilot project in Umeå city (Sweden) Customer: Umeå county, Sweden Project period 2001-2002 Nature of task: Determination of bioacumulative PAH pollution profile in Tvärån stormwater stream ...


    By Exposmeter AB

  • Silt Fence installation efficacy: definitive research calls for toughening specifications and introducing new technology

    Introduction: Silt fence is a joke on many construction sites. It is often seen just blowing in the wind, or sagging and broken down. Some specifiers won’t utilize silt fence on their sites because it is too often installed improperly, and not maintained. Yet, the need for effective on-site sediment control has never been greater. Sediment-laden runoff has been shown to result in the loss ...


    By L & M Supply Company

  • Discussion about initial runoff and volume capture ratio of annual rainfall

    In recent years, runoff pollution from urban areas has become a major concern all over the world. But there exists a worldwide confusion about how much stormwater should be captured for the purpose of runoff pollution control. Furthermore, the construction cost and pollution control efficiency are closely linked with the size of stormwater facilities, which is then related to the first flush ...


    By IWA Publishing

  • Preliminary stabilisation of stormwater biofilters and loss of filter material

    Stabilisation affects performance of stormwater biofilters operating under intermittent wetting and drying, mainly due to wash-off of filter material. Understanding the dynamics of solids wash-off is crucial in designing stormwater biofilters. The current study analysed the dynamics of solids wash-off in stormwater biofilters and quantified the loss of solids from the filter. Four Perspex™ ...


    By IWA Publishing

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