stormwater rule Articles

  • Stormwater: Questions and Answers

    The whole subject of Stormwater is complicated. Here's a chance for you to check out some of the most frequently asked questions about stormwater . . . and their answers. What is an NPDES (National Pollutant Discharge Elimination System) permit? The Clean Water Act prohibits anybody from discharging 'pollutants' through a 'point source' into a 'water of the United States' unless they ...


    By Ben Meadows

  • 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 ...

  • Stormwater Best Management Practices (BMP)

    Storm water is the result of rain or snow melt that collects in an area that can drain from into a nearby body of waters such as a lake or river. The water can collect on roof tops, parking lots, saturated ground, roads, etc. The problem is that many of the pollutants of our modern living such as oil, grease, pesticides, sediment, salt, and animal waste are washed away within the storm water and ...

  • Rough set approach to the evaluation of stormwater pollution

    This paper addresses the problem of urban stormwater quality and its impacts on the receiving water. In order to describe this phenomenon, research aimed at creating a mathematical model of pollution has been conducted. Although various deterministic and stochastic models exist already, the quality of stormwater phenomenon deserves a very careful and thoughtful validation. In order to take ...


    By Inderscience Publishers

  • The 7 Tips for Highly Effective Stormwater Management By-Laws

    ABSTRACT The Stormwater Phase II Final Rule, which applies to small municipal separate storm sewer systems (MS4s) in “urbanized areas”, requires communities across the country to adopt local legislation that will control the harmful effects of stormwater runoff and prohibit non-stormwater pollution from entering the drainage system. Adopting a thoughtful and comprehensive stormwater by-law ...

  • Innovative technologies for management of stormwater and combined sewer flows

    Stormwater flows have historically been considered as harmless. Studies have shown that these flows cannot be dismissed as easily. Chebbo (1992), Marsalek et al.,(1997) and others have shown that stormwater is a source of diffuse pollution with a high source of total suspended solids (TSS), adsorbed hydrocarbons (HC) and nutrient loads (N, P, etc..). All these factors influence the quality of the ...

  • Seven Maintenance Considerations for Stormwater Filtration Systems

    All stormwater BMP’s will require maintenance at some time or time interval. Long-term maintenance costs and maintainability are very important considerations. Here are some other things you should consider when discussing maintenance of your stormwater filtration system. 1. Evaluate availability of maintenance contracting. It is the nature of filters to occlude with ...

  • Innovative use of lamella clarifiers for central stormwater treatment in separate sewer systems

    Lamella settlers have been used in the past few years for the sedimentation of particles in wastewater and stormwater applications. A new and very innovative approach for the treatment of stormwater flows is proposed which extends the portfolio of solutions beyond traditional settling tanks. Surface runoff is stored in a sewer or a basin and finally treated in a small but continuously operated ...


    By IWA Publishing

  • Inflow based investigations on the efficiency of a lamella particle separator for the treatment of stormwater runoffs

    The present design of stormwater tanks is based on the creation of storage volume to retain stormwater and the prevention or reduction of stormwater overflows. The treatment of stormwater is often improved with mechanical equipment. The general layout rules do usually not include the appropriate choice of design inflow related to the chosen treatment equipment. In the following investigations it ...


    By IWA Publishing

  • Balancing growth and conservation - Precast concrete manholes become part of the stormwater solution

    When American Fork, Utah, decided to approve construction of a 175-acre commercial center, the city engineers had to consider the environmental effect it would have on a 45-acre wetland right next door. Under the EPA´s Phase II Storm Water Rules, adapted in late 1999, almost any city large enough to require a storm sewer system must balance growth with the environmental impacts of ...


    By BaySaver Technologies, Inc.

  • Modeling the hydrologic and economic efficacy of stormwater utility credit programs for US single family residences

    As regulatory pressure to reduce the environmental impact of urban stormwater intensifies, US municipalities increasingly seek a dedicated source of funding for stormwater programs, such as a stormwater utility. In rare instances, single family residences are eligible for utility discounts for installing green infrastructure. This study examined the hydrologic and economic efficacy of four such ...


    By IWA Publishing

  • Bioretention swales: a nonstructural bmp approach to achieve new standards

    ABSTRACT Bioretention swales are unique stormwater management facilities that possess the multifunctionality of conveying, treating, detaining, and infiltrating runoff. The bioretention system consists of an organic soil media layer that supports a robust ecosystem, including native vegetation, microorganisms, and macroinvertebrates. During the more frequent smaller storm events, which make ...

  • A flexible modelling environment for integrated urban water harvesting and re-use

    The steady increase of urban population and the possible effects of climate change that may adversely affect the amount of water available in current water supply systems, makes the study of stormwater and rainwater harvesting and wastewater recycling a high priority. The basic proposition is that any system of water supply that can reduce the amount of water drawn from main reservoirs will be of ...


    By IWA Publishing

  • December 2005 - Regulatory Update

    The Onyx Environmental Services - Environmental, Health, Safety, and Transportation department is pleased to present the Monthly Regulatory Update. The update contains a brief summary of the proposed and final rules from EPA, OSHA, and DOT published in the Federal Register in the past calendar month. If you have any questions, comments, or suggestions regarding the Monthly Regulatory Updates, ...

  • EPA Clean Water Act: New Regulations re: `Waters of the United States`

    The Environmental Protection Agency (EPA) published a final rule defining the scope of waters protected under the Clean Water Act… The rule will ensure protection for the nation’s public health and aquatic resources, and increase CWA program predictability and consistency by clarifying the scope of ‘‘waters of the United States’’ protected under the ...

  • 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

  • A planning algorithm for quantifying decentralised water management opportunities in urban environments

    With global change bringing about greater challenges for the resilient planning and management of urban water infrastructure, research has been invested in the development of a strategic planning tool, DAnCE4Water. The tool models how urban and societal changes impact the development of centralised and decentralised (distributed) water infrastructure. An algorithm for rigorous assessment of ...


    By IWA Publishing

  • 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

  • Spatial distribution of PCDDs, PCDFs and dl-PCBs along the cascade of urban reservoirs

    The river environment is a highly complex system with a variety of processes continuously changing along its continuum (River Continuum Concept). Therefore identification of the threats that result from different elements of the river ecosystem is an intricate task, mainly because of the transportation and biological, geological and chemical processes occurring in such a system. The overall ...


    By IWA Publishing

  • WWEMA Window: Tackling today`s top challenges

    On September 24, 2013, the Water and Wastewater Equipment Manufacturers Association (WWEMA) held its annual President’s Council at the Chicago O’Hare International Airport. This is an informative one-day event where top executives of WWEMA-member companies get together to share and discuss industry trends, national and international economic news, and upcoming regulatory issues. This ...


    By Smith & Loveless Inc.

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