Rain gardens for clean streams
Download
1 / 38

Rain Gardens for Clean Streams - PowerPoint PPT Presentation


  • 272 Views
  • Uploaded on

Rain Gardens for Clean Streams Did you know? Up to 70% of pollution in streams, rivers and lakes comes from storm water runoff. Planting a Rain Garden… reduces the amount of storm water entering storm drains

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Rain Gardens for Clean Streams' - sandra_john


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Rain gardens for clean streams l.jpg
Rain Gardens for Clean Streams


Did you know l.jpg
Did you know?

Up to 70% of pollution in streams,

rivers and lakes comes from storm water runoff.


Planting a rain garden l.jpg
Planting a Rain Garden…

  • reduces the amount of storm water entering storm drains

  • helps reduce the amount of flooding by keeping water contained so that it can drain slowly over a period of time

  • allows soil to filter out pollutants and reduce the amount of nonpoint source pollution entering our streams


Nonpoint source pollution nps is caused by many reasons l.jpg
Nonpoint Source Pollution (NPS) is caused by many reasons.


Slide5 l.jpg

Excess fertilizers, herbicides, and insecticides from agricultural lands and residential areas


Slide6 l.jpg

Oil, grease, and toxic chemicals agricultural lands and residential areas

from

urban runoff and energy

production


Slide7 l.jpg

Sediment from improperly managed agricultural lands and residential areas

construction sites,

crop and forest lands,

and eroding stream banks



Slide9 l.jpg

Bacteria and nutrients from livestock, abandoned mines

pet wastes,

and

faulty septic systems


Slide10 l.jpg

Rain and snow melt pick up these natural and human-made pollutants, finally depositing them into lakes, rivers, wetlands, coastal waters, and even our underground sources of drinking water


Slide11 l.jpg

Impervious surfaces (ones that do not allow water to percolate or drain through soil such as buildings, parking lots, etc) contribute runoff water and increase the amount of pollutants in runoff.


Rain garden l.jpg

Rain Garden percolate or drain through soil such as buildings, parking lots, etc) contribute runoff water and increase the amount of pollutants in runoff.

A garden designed specifically to improve water quality.




During l.jpg
During the ground.


During16 l.jpg
During the ground.


After planting l.jpg
After planting the ground.


After one season l.jpg
After one season the ground.


Slide19 l.jpg

Determine the location the ground.

Near the house to catch only roof run off or out on the lawn to catch water from the lawn and roof


Location l.jpg
Location the ground.

  • A gentle slope (no more than 10%)

    • Remember that the garden needs to be dug into a bowl shape and the greater the slope the deeper the bowl that will need to be created

  • At least 10 feet from your foundation

  • Near a downspout or where water naturally drains

  • Away from areas where water already ponds as there will be little infiltration in this area


Planning stage l.jpg
Planning stage the ground.

  • Estimate the area which will drain into your garden (roof and/or lawn)

  • Determine the type of soil (sand or clay)

  • Gardens planted in sandy soil should be 20-30 % the size of the drain area

  • Gardens planted in clay soil should be

    55-60% of the drain area


Example l.jpg
Example the ground.

Dylan’s house is 50 feet by 40 feet so the roof area is 2000 sq ft. (50 x 40 = 2000)

He has two downspouts and will plant a rain garden in the back yard which will collect water from approximately half of the roof area or 1000 sq ft.

His soil is mostly clay so the size of the rain garden should be approximately 550 sq ft. (1000 x .55 = 550)


Slide23 l.jpg

Remember the ground.that a rain garden of any size will help to control storm water runoff


Building the rain garden l.jpg
Building the Rain Garden the ground.

  • Be sure you check with your utility company before attempting to dig in your yard.

  • Lay out the garden with a garden hose or landscaper’s spray paint.

  • Start digging on the uphill side of the garden

  • Remember that you will be moving soil from the uphill to the downhill side of the garden to create a berm and the bowl shape of the rain garden


Creating the berm l.jpg
Creating the berm the ground.

  • The berm will be the highest on the downhill side of the rain garden

  • The berm will gradually decrease as you go up the sides of the rain garden

  • After shaping the berm be sure to stomp it down so that it is well compacted

  • Cover the berm with compost/mulch or plant grass or a dry tolerant native plant to control erosion on the berm


Planting the garden l.jpg
Planting the garden the ground.

  • Consider the height, color, moisture tolerance and bloom time of plant material

  • Plant in groups of 3, 5 or 7 of the same variety

  • Add rocks, boulders or other ornamental features to add interest

  • Water at least once a week until plants are established


Maintaining the garden l.jpg
Maintaining the garden the ground.

  • Weed out any invasive or non native plants until natives are established

  • Stems and seed heads can be left to stand for winter interest and to attract birds and other wildlife to the garden

  • As spring approaches cut back all standing growth and compost or discard

  • Occasionally the plants should be divided


Municipal site l.jpg
Municipal Site the ground.


During29 l.jpg
During the ground.


After l.jpg
After the ground.


During and after l.jpg
During and after the ground.


During and after33 l.jpg
During and after the ground.


Before and after l.jpg
Before and After the ground.


Why plant a rain garden l.jpg
Why plant a rain garden ? the ground.

  • To prevent flooding and excess storm water damage

  • To limit the amount of erosion and cut down on sediment entering our waterways

  • To filter out and limit the amount of pollutants reaching our waterways

  • To provide habitat for wildlife



Slide37 l.jpg

Financial and other support for this project is provided by the Pennsylvania Association of Conservation Districts, Inc. through a grant with the U.S. Environmental Protection Agency’s Section 319 Program.

The mission of the Bucks County Conservation District is to provide for the wise use, management and development of the county’s soil, water and related natural resources. This is accomplished with the cooperation of public agencies, private groups and individuals


For more information l.jpg
For more information: the Pennsylvania Association of Conservation Districts, Inc. through a grant with the U.S. Environmental Protection Agency’s Section 319 Program.

Mary Ellen Noonan

Environmental Educator

Bucks County Conservation District

1456 Ferry Road, Suite 704

Doylestown, PA 18901

215.345.7577

www.bucksccd.org


ad