Christopher C. Obropta, Ph.D., P.E. Assistant Extension Specialist, Water Resources Program Assistant Professor, Dept.

2. "a technique, measure or structural control that is used for a given set of conditions to manage the quantity and improve the quality of stormwater runoff in the most cost-effective manner" USEPA Two Types Structural Nonstructural Stormwater BMPs

3. Stormwater BMPs Structural Engineered to control both the quantity and quality of stormwater runoff Non-structural Educational Policy changing Source-targeting (pollution prevention)

4. Reducing nonpoint source pollution Structural stormwater management basins silt fences Non-structural minimize impervious cover minimize disturbance maximize vegetation, minimize lawns minimize vegetation that needs fertilizer

5. Stormwater BMPs Ultimate goal of both BMP types: 1. control stormwater flow 2. remove pollutants 3. manage and/or reduce pollutant sources

6. Household BMPs �Careless or uninformed household management contributes to NPS pollution problems� USEPA �Although individual homes might contribute only minor amounts of NPS pollution, the combined effect of an entire neighborhood can be serious� USEPA

7. Household BMPs Limit impervious surfaces Low impact development Green Landscaping Water conservation Proper chemical use, storage, and management Proper septic management Stormwater control measures

8. Impervious Surfaces Prevent water infiltration Cause pollutants to accumulate Cause runoff to funnel into storm drains at high speeds Paved surfaces transfer heat to runoff (biological and ecological implications)

9. Impervious Surfaces

10. Problems with Traditional Landscaping

11. Green Landscaping

12. Green Landscaping

13. Benefits of Green Landscaping

14. Backyard Water Conservation

15. Stormwater Controls

16. Examples

17. Rain Gardens

27. Extended Detention Basins

28. Infiltration Basin

29. Manufactured Treatment Devices

30. Pervious Paving

31. Sand Filters

32. Vegetative Filters

33. Wet Ponds