Green Stormwater Infrastructure - Volume 2: Guidebook (2017) / Chapter Skim
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3 Background Conventional stormwater infrastructure (or "gray infrastructure") relies on catch basins, pipes, and ditches to remove stormwater from sites using storage or treatment prior to discharge to a natural receiving water (e.g., lake or river)
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4 Green Stormwater Infrastructure GSI BMPs (Stoner 2011a)
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Understanding Green Stormwater Infrastructure 5 not intended to address flood control mitigation requirements common in new development and redevelopment projects. However, GSI may provide conveyance and infiltration of stormwater runoff that will contribute to mitigating flooding.
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6 Green Stormwater Infrastructure National Environmental Policy Act Mitigation Because many projects at airports are considered federal actions, projects involving GSI may be subject to the National Environmental Policy Act (NEPA)
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Understanding Green Stormwater Infrastructure 7 3. Limited data on soil characteristics and detailed, activity-specific stormwater characteristics, 4.
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8 Green Stormwater Infrastructure Addressing Potential Conflicts Wildlife Hazard Management The airports participating in the study supporting the development of this guidebook noted that FAA regulations regarding wildlife hazards are a major consideration when evaluating the feasibility of GSI. The use of vegetation appears to conflict with FAA guidance to control wildlife attractants at airport facilities.
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Understanding Green Stormwater Infrastructure 9 such as the airport's location and the surrounding environmental, political, and social climates. This guidebook describes some general wildlife hazard management strategies for GSI that have been used by airports and can be tailored to an airport's specific needs through a more comprehensive wildlife hazard management plan.
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10 Green Stormwater Infrastructure aircraft. Other operational areas, including the clearway and runway protection zone, provide fewer constraints, as the BMPs do not have to support the weight of aircraft.
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Understanding Green Stormwater Infrastructure 11 could enter GSI BMPs, which could provide limited incidental treatment; however, GSI BMPs do not always include mechanisms or features to mitigate or treat anti-icing or deicing fluids. Therefore it is recommended that GSI not be the primary means to capture and treat deicing fluids and fluid-laden runoff without specific design elements that target these fluids.
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12 Green Stormwater Infrastructure O&M costs of GSI BMPs are often based on a combination of data from actual operations and standard cost estimating tools (e.g., RSMeans)
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Understanding Green Stormwater Infrastructure 13 Helpful Resources • University of New Hampshire Stormwater Center. 2012 Biennial Report, pp.
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14 Green Stormwater Infrastructure downstream negative effects. Airports should have discussions with local officials during the following phases of a GSI project: 1.
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