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Published byEgbert Bond Modified over 9 years ago
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Reducing Storm Water Runoff on Your Homesite 6090 Wedgewood Road Medina, OH 44256 330-722-2628 (phone) 330-725-5829 (fax) Local leadership for soil and water conservation.
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The Goal To demonstrate practices homeowners can implement to reduce the volume of storm water flowing off their property.
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Natural Areas Many air and water pockets Numerous micro and macro organisms Deep plant root growth High surface water infiltration and detention Low surface water runoff and erosion
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Developed Areas Few air and water pockets Limited micro and macro organisms Shallow root growth Low surface water detention and infiltration High surface water runoff and erosion
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Runoff Generated by 1” Rainfall over 1-acre Parcel
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Impacts of Increased Runoff Volumes $ $ $ $ $
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A combination of practices that… Increase infiltration Better manage runoff & promote “run-on” Decrease impervious surfaces
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Increase Infiltration Reduce soil compaction Landscaping alternatives Turf management
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Soil Compaction
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Porosity of Urban Lawns = 30% The avg. porosity of a compacted building pad = 30%
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Reverse Soil Compaction on Existing Homes: A study completed in Seattle, WA showed the addition of compost amendments to urban soils reduced runoff from 29-50% over soils with no amendments added. Add Compost
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Reverse Soil Compaction on Existing Homes: Aerate Your Lawn
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Reverse Soil Compaction on Existing Homes: Plant Trees
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Permeability Rates Study completed in Ocean County, NJ – March ’01
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Tree Canopy Cover Study: Garland, TX – 3.86 acre site
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Minimize Soil Compaction on New Homes: Tree Protection Area Avoid Compaction
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Minimize Soil Compaction on New Homes: Break-up Compaction
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Increase Infiltration: Landscape Alternatives
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Increase Infiltration: Turf - Let it Grow Tall Plant Height Root Depth
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Better Manage Runoff & Promote “Run-on” Disconnect gutter downspouts Collect storm water Maintain open swales and ditches Slope impervious areas
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Typical Gutter Downspout
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Disconnected downspouts direct roof runoff away from the foundation and into the lawn. Be sure to check with your local jurisdiction for rules pertaining this.
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Roof runoff is piped from downspout to a dry well. Be sure to check with your local jurisdiction for rules pertaining this.
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Rain Collection Barrel – use for watering gardens
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Road-side ditches absorb more water than culverts Open DitchEnclosed Ditch
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Grassed swales absorb more water than culverts Grassed SwaleCulverted Swale
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Typical Sloping Driveway Drains directly to the road
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“Crowned” Driveway Drains directly to the lawn
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Decrease Impervious Areas: Pervious Alternatives
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Decrease Impervious Areas: Building Up vs. Out Type of House Living Space Roof Area Runoff from 1” Rainfall Ranch (1-story) 2000 ft 2 1250 gallons Colonial (2-story) 3000 ft 2 1500 ft 2 938 gallons
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Top 5 Practices to Implement on an Existing Home Let grass grow taller Maintain all open drainageways (ditches & swales) Disconnect downspouts and/or use a rain barrel or cistern Aerate your lawn Plant trees & shrubs
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Top 5 Practices to Implement on a New Home Prevent soil compaction during construction Add organic amendments to your soil Plant trees & shrubs Disconnect downspouts and/or use a rain barrel or cistern Promote “run-on”
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