1. Stormwater Management for Homeowners

2. Where does water go?

3. Water infiltration

4. What’s in a watershed?

5. Many watersheds now…

6. North Carolina is rainy!

7. Surface Runoff

9. Surface runoff Picks up pollutants Picks up pollutants Often flows right into streams Often flows right into streams Increases flooding and erosion Increases flooding and erosion

13. Common runoff pollutants

16. Effects of Water Pollution

17. Photo courtesy of NRCS

19. In NC, approximately 5000 stream miles (16%) are impaired by sediment, pathogens, low DO, nutrients, & habitat degradation

20. What can you do? Slow water en route to streams to reduce flooding Slow water en route to streams to reduce flooding Clean water en route to streams to reduce pollution Clean water en route to streams to reduce pollution But how?

21. With a rain garden! Create and plant a shallow depression Create and plant a shallow depression Restore infiltration Restore infiltration

22. Bioretention

24. NCSU-led Study in Greensboro 2002-2004

25. Annual Pollutant Loadings Greensboro Cell G2

26. Chapel Hill Cell, C1 NCSU-led Study 2002-2003

27. Annual Pollutant Loadings Chapel Hill Cell C1

28. Soil Stabilization Cover disturbed soil to reduce erosion Turf Mats

29. Permeable Pavement Allows for rainfall infiltration Allows for rainfall infiltration Low traffic surfaces (driveways, parking lots, walk ways) Low traffic surfaces (driveways, parking lots, walk ways) Used along coastal regions in areas of sandy soil Used along coastal regions in areas of sandy soil

31. Rainwater Harvesting

33. Rain garden principles Place between stormwater source and destination (between house and stream, low spots in yard, or street) Place between stormwater source and destination (between house and stream, low spots in yard, or street) Soil and plants filter pollutant from water Soil and plants filter pollutant from water Infiltration slows water to decrease flooding Infiltration slows water to decrease flooding

35. Rain garden benefits Restore infiltration Restore infiltration Provide wildlife habitat Provide wildlife habitat Add beauty (and value) to your property Add beauty (and value) to your property