1. http://www.clemson.edu/public/carolinaclear/

3.  Holds water in the landscape so it infiltrates (drain) into the ground

4. Location  Intercept water draining toward storm sewer  Depressed area

5. Location  >10’ from the home  >25’ feet from a septic tank leach field

6. Materials  50-60% sand  20-30% top soil  20-30% compost

7. Native plants  Both wet- and drought-tolerant

8. Mulch  Dense, won’t float  3 to 4 inches of hardwood mulch  Pine bark mulch too lightweight

9. Size  Approximately 20% of impermeable area  Including rooftops, driveways, and other impervious surfaces),

10. Water Table  No shallower than 18” from the surface  Ensure proper drainage

11. Excavation  6-8 inches deep  8-10 ft. wide in the direction of stormwater flow

12. Perimeter  To prevent overflow from eroding the edge  stones  Berm can contain water until infiltration

13. Soil  Sandy loam to loamy sand  Permeability rates of 1 to 6 inches per hour

14. Infiltration  Dig a hole the size of a coffee can  Fill with water.  How many inches does it drop in an hour?  Ideally, 1 to 6 inches.

15. Drainage  Subsurface drain tile to drain large volumes of water  Perforated tile (4”) installed 3.5 to 5 feet below the surface  Enveloped in washed gravel and geotextile fabric

17.  Storm drain to river

18.  Berm to divert water from basin

22.  Stalite PermaTill bioretention media is delivered

26.  PermaTill media is spread to six inch depth

42.  Other rain garden projects  http://picasaweb.google.com/dhymel http://picasaweb.google.com/dhymel