Last week, I learned of the Coastal Stormwater Supplement to the Georgia Stormwater Management Manual that was released this year. It is very progressive in including good new guidance on incorporating LID in stormwater management. I'll admit, I didn't read all 542 pages, but I will quote my favorite parts discussing pervious concrete pavements:
"The alternatives to impervious surfaces recommended for use in coastal Georgia include:
- Green Roofs
- Permeable Pavement"
"...site planning and design teams may also want to consider the use of alternative paving surfaces, such as pervious concrete...for roadway construction"
"If parking lot footprints cannot be minimized using any of the techniques described above, site planning and design teams should consider the use of alternative paving surfaces, such as pervious concrete..."
"Porous asphalt is thought to have a limited ability to maintain its structure and permeability during hot summer months and, consequently, is currently not recommended for use in coastal Georgia."
You can download the full document here.