Click on the links below to read case studies about integrating sustainability into water resources management.

City of Gainesville Credit Basin Project 

The City of Gainesville’s Credit Basin Program is designed to recuperate capital costs associated with the purchase of land for master stormwater facilities.The City of Gainesville, in collaboration with the St. Johns River Water Management District, initiated the credit basin program in 2002. The program was created to facilitate redevelopment of properties within the City’s urban core, where land area is at a premium and thus on-site water quality treatment was an impediment to redevelopment. 

Humboldt  Stormwater Greenway Project, City Of Los Angeles
The City of Los Angeles’ Watershed Protection Division within the Bureau of Sanitation recently completed construction of the Humboldt Stormwater Greenway by implementing green infrastructure design to improve the sustainability of a local community. The Project constructed an above ground detention basin for temporary runoff storage in order to capture, infiltrate, and remove pollutants from dry-weather runoff and limited stormwater flows from approximately 3.5 acres of adjacent lands, thereby improving the downstream water quality of Los AngelesRiver receiving waters. 

Urban Drainage and Flood Control District: Sustainability on a Large Scale – Denver Metropolitan Area 
In 1965, the Denver metropolitan area was hit with a devastating flood on the South Platte River. Following the flood, an organization of county engineers began meeting to find ways to address drainage problems that crossed jurisdictional boundaries. In 1969, the Colorado General Assembly passed  the Urban Drainage and Flood Control Act. The legislation established the Urban Drainage and Flood Control District for the purpose of assisting local governments in the Denver metropolitan area with multi-jurisdictional drainage and flood control problems. The District operates four programs: Master Planning; Floodplain Management; Design, Construction and Maintenance; and Information Services and Flood Warning. The District Board made a commitment to develop a comprehensive floodplain management program to prevent new problems from being created by new development, while “fixing” existing problems. Since 1969 the population of the District has tripled, and yet there are 5000 fewer structures in mapped 100-year floodplains.

The Economic Benefits of Green Infrastructure: A Case Study of Lancaster, PA
The U.S. Environmental Protection Agency (EPA) released a report that found green infrastructure can be a cost effective solution to controlling stormwater while providing numerous economic benefits. Using the City of Lancaster as a case study, EPA sought to quantify the economic benefits associated with utilizing green infrastructure for controlling wet weather pollution. The report estimated that within the combined sewer system (CSS) area, Lancaster’s green infrastructure plan will reduce gray infrastructure capital costs by $121.7 million and reduce wastewater pumping and treatment costs by $661,000 per year. It will also provide approximately $2.8 million in energy, air quality, and climate-related benefits annually. These benefits exceed the costs of implementing green infrastructure, which were estimated to range from $51.6 million if green infrastructure projects were integrated into already planned improvements to $94.5 million if green infrastructure projects were implemented independently.