TAILIEUCHUNG - PIttsbuRGh, PennsylvAnIA A CASE STUDY OF HOW GREEN INFRASTRUCTURE IS HELPING MANAGE URBAN STORMWATER CHALLENGES

The pollutants contained in the wash water can include sand, sewage waste, plant materials, oil grease, diesel, dead fish, paper products, soap products and petroleum products. Samples analyzed from 2007-2008 show multiple instances of Total Coliform above 1,600,000 MPN/100ml, Fecal Coliform above 18,755 MPN/100ml, and Enterococcus above 24,196 MPN/100ml, all of which are above the action level determined by the City of Oceanside. The action levels are 160,000 MPN/100m for Total Coliform, 18,755 MPN/100m for Fecal Coliform and 17,820 MPN/100m for Enterococcus for the City of Oceanside. . | PITTSBURGH PENNSYLVANIA A CASE STUDY OF HOW GREEN INFRASTRUCTURE IS HELPING MANAGE URBAN STORMWATER CHALLENGES TYPES OF GREEN INFRASTRUCTURE USED Green roofs rain barrels cisterns permeable pavement rain gardens infiltration trenches or vaults vegetated swales street trees downspout disconnection open space preservation Pittsburgh has attempted to incorporate green infrastructure projects and practices into its stormwater management program and its efforts to reduce CSOs in the region. However its most tangible accomplishment toward full-scale green infrastructure implementation is the passage of a stormwater ordinance that establishes stormwater volume reduction standards including a requirement that developments larger than 10 000 square feet retain the first inch of rainfall on-site. Pittsburgh lacks a long-term green infrastructure plan although it has enacted a number of programs aimed at creating permanent green spaces or at greening vacant or abandoned lots throughout the city. It has also made an effort to encourage community participation in green infrastructure projects particularly through use of Community Development Block Grants and support for individual greening projects. Yet the city has only a limited array of incentive programs or guidance available to the public or developers for incorporating green infrastructure and does not have a dedicated funding source for green infrastructure. Pittsburgh s work to promote green building practices and remove hurdles to green infrastructure for instance by changing city codes to allow for downspout disconnections have fared well. But the city could benefit from a more integrated approach to incorporate green infrastructure in its long-term planning. PITTSBURGH PENNSYLVANIA BACKGROUND Total Criteria Score Out of a possible 6 Long-term Green Infrastructure GI Plan Requirement to use GI to reduce some portion of the existing impervious surfaces Incentives for private-party actions Guidance or other affirmative

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