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AbstractA hydrodynamic-settling device was installed in 2004 to treat stormwater runoff from a roof and parking lot located at the Water Utility Administration Building in Madison, Wis. The U.S. Geological Survey, in cooperation with the Wiscon-sin Department of Natural Resources, the City of Madison, cities in the Waukesha Permit Group, Hydro International, Earth Tech, Inc., National Sanitation Foundation International, and the U.S. Environmental Protection Agency, monitored the device from November 2005 through September 2006 to evaluate it as part of the U.S. Environmental Protection Agency's Environmental Technology Verification Program. Twenty-three runoff events monitored for flow volume and water quality at the device's inlet and outlet were used to cal-culate the percentage of pollutant reduction for the device.
Designing Small Parks: A Manual for Addressing Social and Ecological Concerns provides guidelines for building better parks by integrating design criteria with current social and natural science research. Small parks are too often relegated to being the step-child of municipal and metropolitan open space systems because of assumptions that their small size and isolation limits their recreational capacity and makes them ecologically less valuable than large city and county parks. This manual is arranged around twelve topics that represent key questions, contradictions, or tensions in the design of small parks. Topics cover fundamental issues for urban parks, natural systems, and human aspects. Also included are useful case studies with alternative design solutions using three different approaches for integrating research findings into small urban park design.
Vol. 25, no. 1 contains the society's Lincoln Chapter's Resource conservation glossary.
The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.