Presentation on theme: " Threats to Water Resources: Polluted Stormwater Water Resource Congress October 2014."— Presentation transcript:
Threats to Water Resources: Polluted Stormwater Water Resource Congress October 2014
Founded in 1973 to protect and restore America’s rivers Headquartered in DC, American Rivers has offices across the country and more than 100,000 supporters, members, and volunteers nationwide
Why does Stormwater matter?
Credit: Conservation Trust for North Carolina
Runoff: a growing problem Development rates outpace population growth
Hydrological Impacts of Increased Runoff More Frequent F looding
Hydrological Impacts of Increased Runoff Credit: NRCS Increased Flood Peaks
Hydrological Impacts of Increased Runoff Lower Baseflow
Goal of Stormwater Management: Restore Natural Hydrology
Where is the Water Quality Management?
Traditional Infrastructure Modern Infrastructure
Environmental Economic Social Triple Bottom Line Analysis Recreational use Energy savings Improved air quality Fewer heat related fatalities Less time spent in traffic Green jobs Benefits of a Green Approach
photo courtesy of Howard Neukrug, City of Philadelphia Philadelphia in 2025
Green roofs Permeable Pavers Bioretention
Peter Raabe American Rivers Facebook.com/AmericanRivers Twitter.com/AmericanRivers Thank you! Questions?
Environmental Economic Social Triple Bottom Line Analysis
Cost-Effective Infrastructure Investments Avoided costs at site and project levels Reduced infrastructure, land costs Community scale cost- efficiencies lower cost/gallon removal Quantifiable benefits (offset costs, add value) Likely lower O&M costs (less capital intensive)
Energy Savings, Fiscal Efficiency Street trees shade, cool buildings, reduce heat loss. Improve energy efficiency by 5- 10% Green roof energy efficiency gains can exceed 10% Reduced demand reduces transport & treatment costs Photo: Mahan Rykiel Associates Inc.
Photo: Adam Kurbin Capturing Runoff Reduces Cost of Localized & Regional Flooding 2011 $ 8.41 billion flood damages 25% due to urbanized flooding Long term indirect costs Green infrastructure effective on multiple levels
Reducing Public Health Threats
What Is It Worth? Quantifying the economic value of local benefits
National Green Values Calculator Compares green & conventional ‘grey’ infrastructure: hydro impact life cycle costs benefits Adaptable to local ordinance compliance greenvalues.cnt.org
Valuing Green Infrastructure: How does it work? This guide focuses only on benefits – It’s not a cost/benefit analysis Two step process – 1. Quantification 2. Valuation Focus of equations on 4 areas 1. Water 2. Energy 3. Air Quality 4. Climate Change
Introducing the Market : the Emergence of Stormwater Credits Alternative way of complying with on-site performance standard : DC Credits against stormwater fee : Philadelphia
EPA estimates approximately $188.4 billion in capital investments needed for stormwater infrastructure This doesn’t even include O&M, local needs or population growth The size investment would generate: $265.6 billion in economic activity Economic Impact Green Jobs