20072227 Ver 1_Staff Comments_20080424

07-2227 Queens Gap
AML comments
April 24, 2008
1. Per NCAC 2B 15A: 02H.1000, a "drainage area" is defined as "the entire area
contributing surface runoff to a single point." The watershed delineations
provided in attachment 5 do not provide information about the specific discharge
points and their associated drainage areas. Please provide a drainage area map
that shows all of the stormwater discharge points, their drainage areas and the
percent imperviousness of the drainage areas must be provided. This map must
be at a readable scale of 1" = 100' or larger.
2. A Stormwater Management Plan (SMP) must be provided for any drainage areas
that exceed 24 percent imperviousness. (Attached single family homes typically
exceed 24 percent imperviousness.) For any drainage areas that require an SMP,
lease provide a BMP Supplement Form for each proposed best management
practice that will be used on the site (including both worksheets, Design Summary
and Required Items Checklist), as well as all of the required items. The BMP
Supplement Forms are available on the DWQ web site at:
http://h2o.eiir.state.nc.us/su/bmp forms.htm.