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Conservation Strategies for Growing Communities

Conservation Strategies for Growing Communities. The Growth of Urban Conservation. National Pollutant Discharge Elimination System (NPDES) Nonpoint Source Pollution (NPS) Storm Water Regulations NPDES Phase II. What the Law Requires. Soil Erosion & Sediment Control Planning.

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Conservation Strategies for Growing Communities

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  1. Conservation Strategies for Growing Communities

  2. The Growth of Urban Conservation

  3. National Pollutant Discharge Elimination System (NPDES) Nonpoint Source Pollution (NPS) Storm Water Regulations NPDES Phase II What the Law Requires

  4. Soil Erosion & Sediment Control Planning • Minimize clearing and grading • Phase essential grading to limit soil exposure • Immediately stabilize exposed soils • Protect steep slopes and cuts • Protect and stabilize drainageways • Install perimeter controls to keep sediment on-site • Train contractors on SWPPP implementation • Inspect SWPPP practices after storms and perform needed maintenance • Adjust the plan once construction has started, if needed

  5. Soil Erosion Wind Erosion Sheet & Rill Erosion Stream Bank Erosion Gully Erosion

  6. Erosion Control Practices • Compost Blankets • Grading Strategies • Mulching • Rolled Erosion Control Products • Vegetative Establishment Compost Blanket on a storm water detention basin.

  7. Compost Blankets Applying compost and seed with a pneumatic blower truck Compost Blankets control erosion until seeding is established

  8. Grading Strategies Design developments to fit the existing landscape.

  9. Mulching Applying Straw Mulch Mulching limits soil erosion, lessens the need to contain sediment and enhances water quality.

  10. Rolled Erosion Control Products (RECP’s) Coconut Fiber Matting RECP’s are especially effective at controlling erosion on severe slopes or areas of concentrated flows.

  11. Vegetative Establishment Establishing vegetative cover is the best way to control erosion.

  12. Sediment Control Practices • Compost Filter Berms • Compost Socks • Filter Strips • GeoRidge™ • Inlet Protection Devices • Rock Check Dams • Sediment Control Basins • Silt Fences Rock Check Dams add water quality protection by temporarily impounding runoff from frequent, low intensity rainfalls.

  13. Compost Filter Berms Compost Filter Berms improve water quality by absorbing pollutants.

  14. Compost Socks Compost Socks should be placed on the contour across slopes to intercept and treat sheet flows.

  15. Filter Strips Filter Strips should be left permanent to protect urban streams, ponds and wetlands.

  16. GeoRidge™ GeoRidge™ complements the performance of erosion control blankets on channels and slopes.

  17. Inlet Protection Inlet Protection Devices trap and filter sediment before entering storm sewer inlets.

  18. Rock Check Dams Rock Check Dams prevent gully erosion caused by concentrated flow.

  19. Sediment Control Basins Maximizing the amount of time water is impounded increases the amount of sediment retained on site.

  20. Silt Fences Silt Fences temporarily impound runoff and retain sediment on-site, often as perimeter control.

  21. Storm Water Management-Low Impact Development (LID) • Bioretention Cells • Bioswales • Infiltration Trenches • Native Landscaping • Permeable Paving Alternatives • Rain Gardens • Soil Quality Restoration Bioretention Cells manage runoff from impervious surfaces.

  22. Bioretention Cells Bioretention Cells are shallow, landscaped depressions that can handle large volumes of runoff.

  23. Bioswales Bioswales are vegetated conveyance systems that provide an alternative to storm sewers.

  24. Infiltration Trenches Infiltration Trenches are excavated trenches filled with a coarse stone aggregate and biologically active organic matter.

  25. Native Landscaping Fall Colors Summer Colors High organic matter in native plants helps soil hold water like a sponge and infiltrate most rain.

  26. Permeable Paving Alternatives Impervious surfaces that allow water to infiltrate.

  27. Rain Gardens Perennial gardens featuring native vegetation strategically located to capture runoff.

  28. Soil Health Restoration Key to restoring soil quality is reducing soil compaction and increasing organic matter content.

  29. Final Thoughts • Design Standards & Specifications • Illinois Urban Manual Helpful Websites:www.il.nrcs.usda.gov www.urbanwaterquality.org www.epa.gov www.aiswcd.org www.lowimpactdevelopment.org www.stormwatercenter.net www.greeninfrastructure.net www.rmi.org

  30. Developed in cooperation with: • Environmental Protection Agency (EPA) • Association of Illinois Soil and Water Conservation Districts • IL Army Corps of Engineers • Illinois Department of Natural Resources (DNR) • Prairie Rivers Network The USDA is an equal opportunity provider and employer.

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