1. Storm Sewer Map Development Presented by: Kurt Whited

2. Why Map Storm Sewers? As required by 327 IAC 15-13-14, Allen County must map all known Storm water outfall conveyance systems under the MS4 Operator’s control with a pipe diameter of twelve (12) inches or larger and open Ditches with a two (2) foot or larger bottom width within the first five(5) year permit term. Permit term ends 2009 MS4 – Municipal Separate Storm Sewer System Conveyance – Any structural process for transferring storm water between at least two (2) points It’s Fun

3. Allen County’s Plan MS4 Boundary

4. Allen County MS4 Area

5. Allen County’s Plan MS4 Boundary Subdivisions

6. Allen County MS4 Subdivisions

7. Allen County’s Plan MS4 Boundary Storm Sewers Subdivisions

8. Subdivision Storm Sewer Mapping

9. Required – Outfall Conveyance

10. Database Design

11. Manhole Inlet Structure Grade beam or Control outlet Pipe Job

12. Allen County’s Plan MS4 Boundary Storm Sewers County Regulated Tiles Subdivisions

13. County Regulated Tiles Estimated Feet of Conveyance = 1,003,200

14. Allen County’s Plan MS4 Boundary Storm Sewers County Regulated Tiles Subdivisions County Regulated Ditches

15. Estimated Feet of Conveyance = 567,600

16. Allen County’s Plan MS4 Boundary Storm Sewers County Regulated Tiles Subdivisions County Regulated Ditches Industrial Sites

17. Allen County MS4 Industrial Sites

18. Allen County’s Plan MS4 Boundary Storm Sewers County Regulated Tiles Subdivisions County Regulated Ditches Industrial Sites Hazardous Chemical Sites Well Head Locations Septic Locations

19. What does this mean for Allen County? Whole county to follow Used as first response to drainage complaints Used to locate point source pollution Used to tabulate number of complaints geographically Historical reference Web access Delineation of Potential Reconstruction and Maintenance

20. Questions?