What Are The Drone Anti-jamming Systems Technology?
Clean Rivers, Clean Lake -- Rooftops to Rivers Study-- Karen Hobbs
1. Smart, Green Solutions to a Major
Water Pollution Challenge
Stopping Runoff Pollution and Sewer Overflows
Karen Hobbs
Natural Resources Defense Council
5. Combined Sewer Overflows
Newtown Creek, Brooklyn
Image: Riverkeeper
Image: Seattle Public Utilities
6. Green Infrastructure as a solution:
What is Green Infrastructure?
Portland streetscape Navy Yard Bioretention
Photo courtesy of Martina Keefe Photo courtesy of LID Center
7. Portland’s stormwater street planters. Photo courtesy of
the Portland Bureau of Environmental Services. NRDC, Stormwater Strategies
Chicago City Hall Green Roof. Photo courtesy of
Permeable Pavement, City of Portland, BES Roofscapes, Inc.
8. Green Infrastructure as a solution:
Other non-water benefits
• Reduced energy use
• Increased property values
• Improved air quality
• Lower air temperature
• Reduced urban heat island effect
• Conservation of water
9. Overview: Rooftops to Rivers II
• Demonstrates how cities
use green infrastructure to
improve stormwater
management and achieve
multiple benefits.
• The report includes:
– Economic benefits of green
infrastructure
– Case studies on 14 cities
– Encouragement for EPA to
learn from the work of these
cities and advance these
solutions nationwide
11. Philadelphia
• Green City, Clean
Waters plan – creating
an urban network of GI
over the next 25 years
12.
13. Syracuse
• 1st community in the
U.S. to have a legal
requirement to reduce
sewage overflows with
GI
14. Milwaukee
• MMSD: regional & national wastewater utility
leader in its integration of green infrastructure into
its combined sewer overflow reduction strategy
• No consent decree
• GreenSeams
16. Portland
• Retention standard –
January 2011:
new development and
redevelopment projects
must capture and treat
80% of the average
annual runoff volume
on site
Under natural conditions, very little surface runoff occurs. The vast majority of precipitation either infiltrates into groundwater or goes into the atmosphere as water vapor.
By contrast, developed land significantly contributes to runoff.
In addition, in many areas, particularly in the Northeast and Great Lakes regions, stormwater and municipal wastewater is carried in the same pipes, and the combined system is designed to overflow to surface waters in certain rain events. That means untreated domestic sewage going to our waterways.