Stormwater Management Case Studies and White Papers

  1. Submersible Pumps Eliminate Flood Damage Concerns At LaGuardia Airport
    1/23/2014

    During Hurricane Sandy, La Guardia Airport’s five stormwater pump stations lost power, resulting in flooding of an estimated 100 million gallons of water.  The Port Authority of New York & New Jersey quickly moved up its planned renovations and installed nine axial flow pumps capable of moving large volumes of water at low heads. The propeller-type pumps have motors that are invulnerable to submersion during high-water incidents, improving the airport’s stormwater control, flexibility, and operational efficiency.

  2. Flood Improvement And LID Modeling Using XP‐SWMM
    9/30/2013

    Over the years, a number of severe storms have impacted the Harris Gully watershed, including Tropical Storm Allison, which resulted in $5 billion in damages in 2001. Inundation was especially severe at the downstream portions of Harris Gully, where Rice University and the Texas Medical Center are located. A1D/2D hydraulic model (XPSWMM) was instrumental in simulating and evaluating the effects of a proposed drainage alternative.

    By Andrew Juan, Dr. Nick Fang, and Dr. Philip Bedient, Rice University

  3. Membrane Filtration Water Treatment Plant Meets Hotel Complex's Needs
    10/23/2012

    The Little America West Hotel complex located near the town of Granger, Wyoming, used an outdated surface water treatment plant that provided poor quality water during storm events.

  4. Stormwater Treatment and Reuse - Toronto, Ontario (Case Study)
    6/5/2012

    Sherbourne Common is an innovative waterfront park that provides the public with green recreational space along Lake Ontario in a former industrial area. 

  5. Asset Inspections Are Optimal Tool For Maintenance And Capital Improvement
    5/22/2012

    Infrastructure asset inspection process is a tool that identifies deficiencies, creates backlog, establishes proactive maintenance, and monitors life cycles; as well as assists agencies in identifying projects for their Capital Improvement Program (CIP). These inspections can provide both a short-term benefit through work identification for repair and maintenance efforts and a long-term benefit of project identification of new capital improvements and enhancement. By Michael Garcia, PSM, Program Manager II , Seminole County Public Works and Chandra Greiner, CPM, Consultant, LA Consulting

  6. Financing Stormwater Retrofits In Philadelphia And Beyond
    2/7/2012
    To reduce the environmental and public health threats posed by polluted stormwater and to comply with the Clean Water Act, cities nationwide are making significant investments to reduce stormwater runoff. By Alisa Valderrama and Larry Levine, Natural Resources Defense Council
  7. Underground Treatment Of Airport Deicing Fluid
    9/15/2011
    While keeping air flight safe, airports and airlines are also obliged to clean up after themselves and protect nearby streams and water bodies. And due to increasing chemical usage and looming regulations, some airports will need to invest in significant infrastructure upgrades to capture and treat stormwater contaminated with deicing fluid. By Scott Wallace, P.E., President, Naturally Wallace Consulting and Mark Liner, PE, Senior Engineer, Naturally Wallace Consulting
  8. White Paper: Passive Filter - Sustainable BMP For Permanent Stormwater Treatment Of Heavy Metals, Nutrients, Hydrocarbons And Sediment
    8/5/2011
    Passive filtration provides a sustainable alternative to classical drainage concepts for source control of hydrocarbons, heavy metals, and nutrients that endanger our water bodies. In urban areas with high building density, traditional drainage concepts like wetlands are not available and the concept of decentralized treatment facilities that can be housed in catch basin structures are a viable option for treatment of pollutants. By Royal Environmental Systems, Inc.
  9. Application Note: Employing Best Water Quality Monitoring Practices To Reduce Runoff During Construction
    8/4/2011
    Under proposed EPA stormwater runoff guidelines, construction site operators will be required to actively monitor or sample stormwater discharges daily. The enhanced effluent rules take effect in August 2011 for construction sites that disturb 20 or more acres and February 2014 for sites that disturb 10 or more acres, and they may stipulate a strict numerical limit of less than 280 NTU for average turbidity (sediment in water) on any day. By YSI
  10. Fix-A-Flood (Before It Happens): Optimized Overflow Devices Increase Retention Capacity
    7/29/2011

    Overflow events occur during wet weather when the collection system reaches its maximum storage capacity. By Giangranco Maragno, P. Eng. And Martin Couture, P. Eng., Veolia Water Technologies Canada