stormwater Articles

  • The influence of temperature and salt on metal and sediment removal in stormwater biofilters

    Stormwater biofilters are used to treat stormwater runoff. In countries with cold winter climates, biofilters are subject to low temperatures which, in some cases, are combined with potentially high salt concentrations from road de-icing, potentially affecting the biofilter's performance. Since stormwater biofilters have been developed without consideration of their critical winter use, a ...


    By IWA Publishing

  • An exploratory study of the effects of stormwater pipeline materials on transported stormwater quality

    Implications of three sewer pipe materials (concrete, galvanized corrugated steel, and polyvinyl chloride (PVC)) for stormwater quality were explored in laboratory experiments, in which three types of stormwater, SW1–SW3, were circulated in 0.5 m long sewer pipe sections. SW1 and SW2 represented synthetic rainwater, without and with fine street sediment added (CTSS = 150 mg/L), respectively, ...


    By IWA Publishing

  • Capturing the Potential of Stormwater

    Management of the urban water cycle in Australia has changed significantly over the past few decades. Stormwater management philosophy has evolved from the conventional, but still important, flood mitigation paradigm, to the current runoff quality control approach. It is now progressing towards the harvesting and reuse concept whilst retaining the previous two targets. iven the current interest ...


    By IVWater

  • Retrofitting a stormwater retention pond using a deflector island

    Stormwater retention ponds are one of the principal methods to treat stormwater runoff. Analysis of residence time distribution (RTD) curves can be used to evaluate the capability of these ponds for sediment removal. Deflector islands have been suggested as a means of improving the performance of retention ponds, due to their diffusing the inlet jet. In this study, the effect of an island on ...


    By IWA Publishing

  • How to Nearly Double Sewer Rates without Ratepayer Revolt

    In early 2005, the City of Indianapolis identified $435 million in stormwater and sanitary infrastructure needs for 2005-2008. In order to finance these projects, the city needed to raise sanitary sewer rates by 87 percent and stormwater rates by 80 percent over a three-year period. The Department of Public Works developed and implemented a public relations campaign to disseminate the messages ...

  • Investigating psychological factors of behavioural intention of urban residents in South Australia to use treated stormwater for non-potable purposes

    This paper reports on the intentions of urban residents in two South Australian Local Government Areas (LGAs) (council areas) to use stormwater treated through a managed aquifer recharge process for various potential non-potable uses. Data were collected through an online survey of the residents in these LGAs. The key finding is that, in common with recycled sewage water, the intention to use ...


    By IWA Publishing

  • Freeman, Batavia, OH - Case study

    Project Name: Freeman Enclosure Systems Products: Rainstore3 Applications: Underground Stormwater Detention City: Batavia State/Province: Ohio Install Date: February 2016 Client: Freeman Enclosure Systems Install Size: 6720 Units, Three separate chambers. Address: 4160 Willimasburg Township, Batavia, OH ...


    By Invisible Structures, Inc.

  • Impervious area analysis using infra-red aerial photography

    This study was completed in order to provide the City of West Lafayette, Indiana a basis by which to fairly and equitably bill property owners for stormwater collection and conveyance.  Since the amount of stormwater runoff generated is largely dependent on the impervious area of individual properties, initial impervious area estimates of all properties have been developed using satellite ...

  • Stormwater

    Stormwater is a term used to describe water that originates during precipitation events. It may also be used to apply to water that originates with snowmelt or runoff water from overwatering that enters the stormwater system. Stormwater that does not soak into the ...


    By IWA Publishing

  • Influence factors and prediction of stormwater runoff of urban green space in Tianjin, China: laboratory experiment and quantitative theory model

    The effects of limiting factors such as rainfall intensity, rainfall duration, grass type and vegetation coverage on the stormwater runoff of urban green space was investigated in Tianjin. The prediction equation of stormwater runoff was established by the quantitative theory with the lab experimental data of soil columns. It was validated by three field experiments and the relative errors ...


    By IWA Publishing

  • Alkylphenols in atmospheric depositions and urban runoff

    A sampling campaign was conducted in order to determine alkylphenol (AP) concentrations in stormwater as well as potential AP sources in suburban environments. An analytical procedure was developed to quantify APs in bulk atmospheric deposition, building runoff, road runoff and stormwater. Both nonylphenols and octylphenols could be quantified in each sample. Median stormwater concentrations ...


    By IWA Publishing

  • Contribution of trace metals from atmospheric deposition to stormwater runoff in a small impervious urban catchment

    The contribution of atmospheric deposition to emissions of trace metals in stormwater runoff was investigated by quantifying wet and dry deposition fluxes and stormwater discharges within a small, highly impervious urban catchment in Los Angeles. At the beginning of the dry season in spring 2003, dry deposition measurements of chromium, copper, lead, nickel, and zinc were made monthly for 1 year. ...

  • Washington State DOE stormwater report - Case Study

    Fitesa, a non-wovens manufacturer in the state of Washington consistently tests stormwater but experienced problems meeting the stormwater standards for zinc and copper discharge. Zinc is used in galvanized metal, shingles, finishes in paints, and car tires—zinc iseverywhere. Copper is used in items such as in brake linings and pressure treated lumber. At sites near heavily traveled roads, ...

  • The impact of intentional stormwater infiltration on soil and groundwater

    ABSTRACTStormwater infiltration is a principle which is more and more utilized on urban sites in France. However, given the characteristics of urban surfaces, and notably the amounts of the different pollutants that stormwater is likely to contain, it is important to try to assess the impact of intentional stormwater infiltration systems on the soil, and on groundwater. To try to answer that ...


    By IWA Publishing

  • Melbourne Water Guidelines for Stormwater Harvesting

    IVWater have been working with Melbourne Water and industry to develop draft technical guidelines forstormwater harvestingstructures. The guidelines are designed to provide proponents and engineering practitioners with guidance onMelbourne Water'srequirements forstormwater harvestingschemes onMelbourne Waterassets and recommended options for the design, construction, operation and maintenance of ...


    By IVWater

  • Trends in rainfall intensity for stormwater designs in Ontario

    The intensities of short-duration rainfall events are fundamental inputs to the design of stormwater management infrastructure. However, since stormwater infrastructure must function as designed for many decades, if there are long-term trends in rainfall intensities, design storms need to be modified. Evidence demonstrates, using data from 13 rain gauges in Ontario, that storm intensities ...


    By IWA Publishing

  • Resilience in the context of a stormwater infrastructure report card

    This article is a product of an independent study effort accomplished over the span of two semesters at the US Air Force Academy. The authors set out with the intent of investigating the state of current thought regarding resiliency as it applies to domestic public infrastructure systems. In order to bridge the gap between theory and practice, an American Society of Civil Engineers local ...


    By Inderscience Publishers

  • Grasspave2 vs Asphalt Paving Cost Comparison

    Economic Considerations - Grasspave2 paving is competitive with asphalt paving, and has a lower life cycle cost due to low maintenance costs and no need for surface replacement (if new grass is needed, just reseed). Asphalt paving requires resealing every 2 to 4 years, and resurfacing every 8 to 15 years, depending upon traffic and climate. Grasspave2 may not require any ...


    By Invisible Structures, Inc.

  • Don’t Forget about Stormwater Management

    Whether you’re an industrial maintenance manager or retail store manager, one of your many responsibilities may be to keep your property compliant with environmental rules and regulations. From waste management to vapor intrusion, the multitude of compliance-related issues can be daunting.It therefore comes as no surprise that for most retailers, the issue of stormwater management has not always ...

  • 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

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