title. Green Infrastructure
date. 2014
city. Northeast Ohio/NY/Philly

Upstate NY, Watkins Glen
Green Infrastructure Changes Sewer Overflow Problem
Keitha B Cole SPCH 101H Spring 2014
General Purpose: to persuade the audience to get on board with Green Infrastructure.
Specific Purpose Statement: Green Infrastructure is an important replacement for some costly gray infrastructure projects in the managing of sewer overflows, not just in cost, but also in ecological health.
Introduction:
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I’ll define “combined sewer overflows” (CSOs), and how they are a problem.
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I’ll tell you the difference between gray and green infrastructure, and the many ways to implement green infrastructure
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I’ll tell you what this stuff can cost you.
Transition Statement: You’ll see that Green Infrastructure is a great way to reduce water pollution.
Body:
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What is a Combined Sewer Overflow or “CSO”?
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It is a sewer that combines our sewage with storm water, before it goes to the waste-water treatment plants.
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In order to prevent wastewater from “backing up into your basement,” as Andrew Tobias from the Plain Dealer put it, there’s a sewer tunnel that lets the lighter debris from the wastewater travel with storm water out to natural bodies of water.¹
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According to the Natural Resource Defense Council, CSOs in the U.S. are dumping up to 850 billion gallons of untreated wastewater into streams, rivers, lakes and oceans.²â€‹â€‹

What are people doing about it?

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Gray infrastructure….
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This tunnel represents most cities’ sewers
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Many are antiquated and small.
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Gray Infrastructure plans resolve to build much larger storage tunnels, that would hold more rainwater, thus diverting it from pushing sewage into our waterways.
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The alternative Gray Infrastructure is building separate sewer systems, which would take street polluted rain water directly to waterways.
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GREEN INFRASTRUCTURE: Transforming impervious surfaces to pervious and/or delaying storm-water runoff. Impervious surfaces are like streets, they’re solid and water just runs over it, collecting whatever’s on them, and down the sewer.
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List brought to you by New York’s Department of Environmental Conservation http://www.dec.ny.gov/lands/58930.html#Project
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Rain Gardens
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Cornell University Extension in Columbia County, NY
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Not only is the earth porous enough to soak up water, plants soak up a considerable amount from the dirt, and it looks good.​​​
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Green Infrastructure:

Rain Garden in Columbia County, NY

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Bio-retention areas
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Dutchess Community College in Poughkeepsie
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This one is basically a pretty ditch that doubles as a pond in rainy seasons.
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The idea is to catch rainwater that would otherwise flow from large institutions down the drain.
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Green Roofs


Culinary Institute of America in Hyde Park put a straight up lawn on their roof.
Chapel of Our Lady Restoration Annex in Cold Spring, NY
Not only is it pretty, but Green Infrastructure is saving many cities a lot of money on water treatment costs!

POROUS PAVEMENT: This is an example of porous pavement. This is concrete, but porous pavement can be made out of anything including recycled tires.

- Vegetative Swales
- Here’s a parking lot that’s been dug up in the middle for some Earthy goodness.
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They also put these between streams and places of pollution, calling them Stream Buffers
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- Here’s a parking lot that’s been dug up in the middle for some Earthy goodness.

Rain Barrels:
These can be set under your gutters and used to water your lawns.