1. LID Overview Low Impact Development “Redefining Storm Water” In Mecklenburg County Presented by: David Woodie, PE, CPSWQ Project Manager, Charlotte-Mecklenburg Storm Water Services

2. WATERSHED / BASINS 330± miles of FEMA streams330± miles of FEMA streams 32 watersheds32 watersheds All water in Mecklenburg County (except Catawba River) originates in Mecklenburg CountyAll water in Mecklenburg County (except Catawba River) originates in Mecklenburg County

3. McDowell Watershed Improvement Stream Banks Disappear SedimentAppears

4. What is L.I.D. ? Where can I get it? Where can I get it? What Size Do I need? How Much will it Cost? What does it do? It Depends! Where does it go?

5. Meck. Co. Office Hal Marshal Building, 1 acre Parking Lot Monitored by NCSU 60% Phos. Removal

6. What’s Going On? Education Ordinances New Construction Retrofits Redevelopment Restoration

7. Rain Garden Examples North Lake Mall, 17 Rain GardensNorth Lake Mall, 17 Rain Gardens

8. Lake Norman Honda

9. RETRO-FIT RAIN GARDEN, Function Fills with First 1” of Rainfall “First Flush” Excess Runoff Bypasses Rain Garden into Inlet

10. Rain Gardens, BMPs, & LID

11. Northcross Shopping Center

12. Focus Area 1 of McDowell Creek Present Projects Totaling $ 4 million In the works for 2008.

13. Northcross Shopping Center, McDowell Ck BMP Project. -60 Acres of impervious Area, No storm water control devices. -1.63 million gallons of storm water runoff from a 1 inch rain storm. -Draining to McDowell Creek, Mtn. Island Lake, drinking water supply. Helping to achieve water quality one Rain Garden at a time.

14. Northcross back parking

15. Northcross Shopping Center, McDowell Ck BMP Project. -45 Tenants, -Private Property -Easements -Rezoning -Approved -10 Rain Gardens -30% treated -Construction delays 10 months -Utilities -Design changes Helping to achieve water quality one Rain Garden at a time.

16. Northcross

17. McDowell Ck BMP Project. Monteith Park

18. McDowell Ck BMP, Monteith Park

19. 10 Acre Drainage Area 45% Impervious Private Developer, HOA, Residential Concerns, Easement Agreements Construction Sequence

20. McDowell Ck BMP, Monteith Park

24. Ange Propery Wetland Project.

26. Looking SW toward the streamconfluence

27. Ange Propery Wetland Project.