• Blog post

    This week marks the kickoff of the second annual National Mayor's Challenge for Water Conservation, to be launched in C40 member city Washington DC by Mayor Vincent Gray. The competition, sponsored by the Wyland Foundation and Toyota, will run throughout the month of April and will feature mayors across the country encouraging their residents to conserve the precious natural resource.

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  • Blog post

    At C40, we don't claim a monopoly on innovative solutions. So when we hear of developments going on outside of the network, we will on occasion share them with our audience. Which brings us to a new campaign being developed to remedy the problem of basic access to clean water. And it features an interesting leader – the hospitality and tourism industry. The social enterprise, called WHOLE WORLD Water, announced a campaign last week that will encourage spas, hotels and resorts to bottle and sell their own water, then make donations from the proceeds towards clean water programs.

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  • Case study

    Stormwater Utility Rate Structuring

    January 10, 2013 Philadelphia

    As Philadelphia's stormwater management costs increase, it has become more important to the City to receive payment for providing stormwater service. Historically, the charge for municipal stormwater service has been based on the volume of drinking water being used by a property, which is often not representative of true stormwater costs and results in losses for the City.

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  • Case study

    Green Streets and Alleys

    January 10, 2013 Philadelphia

    Communities across the country are realizing the green potential of their streets. Streets and sidewalks can be the largest single category of public impervious cover in urbanized areas. To mitigate the impact of this impervious area, a number of communities, including Portland, Seattle, Chicago, and Philadelphia, have developed green street and alley programs to provide green stormwater management, while maintaining the primary function of the street for vehicles and pedestrians.

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  • Case study

    "Green City, Clean Waters"

    January 10, 2013 Philadelphia

    "Green City, Clean Waters" is Philadelphia's 25-year plan to protect and enhance the City's watersheds by managing stormwater primarily with innovative green infrastructure. As the City agency charged with ensuring compliance with the federal Clean Water Act, the Philadelphia Water Department (PWD) developed "Green City, Clean Waters" to reduce its Combined Sewer Overflows (CSOs), manage its stormwater runoff and associated pollution, and provide a clear pathway to a sustainable future by using green stormwater infrastructure systems that assist or mimic natural processes.

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