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Biofiltration scores big in sports stadium runoff treatment

A self-sustaining biofiltration system prevents flooding in San Francisco’s sport stadium and protects the nearby San Francisco Bay and freshwater resources from stormwater pollutants. Mark Lehnerz of Oldcastle Precast explains how. A large construction project such as a major-league sports stadium can include significant expanses of runoff-generating hardscapes. A venue capable of seating nearly 70,000 […]

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Analyzing alternatives for managing stormwater

The site of a former Ford Motor Company plant along the Mississippi River in St. Paul, Minnesota, U.S., offers a prime location for redevelopment. Authors Bob Fossum, Wes Saunders-Pearce, Nathan Campeau, and Matt Metzger explain the decision-making process used to estimate the benefits and costs of two different approaches for managing runoff from the site. […]

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Los Angeles Zoo plans drought-proof water strategy

One Water LA calls for increased use of municipal recycled water at the Los Angeles (LA) Zoo to reduce reliance on potable water. Authors Eliza Jane Whitman of EW Consulting Inc.; Ali Poosti, Lenise Marrero, and Flor Burrola of the City of Los Angeles, LA Sanitation; and Darryl Pon of the Los Angeles City Zoo […]

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Urban flood mitigation in Quebec City

Quebec City has deployed a real-time decision-support system that uses modeling, monitoring, and other measures to regulate flooding conditions for a 100-year storm event. Authors Diana Qing Tao and Martin Pleau of Tetra Tech and Denis Brisson and Nathalie Jolicoeur of the City of Quebec explain how the real-time control (RTC) system provides flood protection. […]

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PWD has designed a monitoring program to collect many types of environmental data including precipitation, sewer flow, and data on GSI performance.

Data analyses confirm GSI value in overflow control

Designed to reduce combined sewer overflow, green infrastructure in the city of Philadelphia, Pa., in the U.S., has been proven effective based on monitoring data analyses, according to Dwayne Myers and Andrew Baldridge of CDM Smith and Chris Bergerson, Taylor Heffernan, Varsha Raj, Stephen White, and Elizabeth Mannarino of the Philadelphia Water Department. Many water […]

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