SW6221101_Application Form_20231025

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
All surface runoff from the project site drains to and is treated by one of four bio-retention facilities before
being discharged from the site.

2.a.If claiming vested rights, identify the supporting documents provided and the date they were approved:
Approval of a Site Specific Development Plan or PUD Approval Date:
Valid Building Permit Issued Date:
Other: Date:
b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with:
Coastal SW – 1995 Ph II – Post Construction
3. Stormwater runoff from this project drains to the Cape Fear River basin.
4. Total Property Area: 15.16 acres 5. Total Coastal Wetlands Area: 0.0 acres
6. Total Surface Water Area: 0.0 acres
7. Total Property Area (4) – Total Coastal Wetlands Area (5) – Total Surface Water Area (6) = Total Project
+
Area: 15.16acres
+
Total project area shall be calculated to exclude the following: the normal pool of impounded structures, the area
between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water
(MHW) line, and coastal wetlands landward from the NHW (or MHW) line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non-coastal wetlands landward of the NHW (or MHW) line may
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 50 %
9. How many drainage areas does the project have?4 (For high density, count 1 for each proposed engineered
stormwater BMP. For low density and other projects, use 1 for the whole property area)
10. Complete the following information for each drainage area identified in Project Information item 9. If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below.

Basin Information Drainage Area A Drainage Area B3Drainage Area B4 Drainage Area B5
Receiving Stream Name Bones Creek Bones Creek Bones CreekBones Creek
Stream Class * C C CC
Stream Index Number * 18-31-24-2 18-31-24-2 18-31-24-218-31-24-2
TotalDrainage Area (sf)421,48750,10036,53957,336
On-site Drainage Area (sf)364,781 50,10036,539 51,728
Off-site Drainage Area (sf) 56,706 0.0 0.0 5,608
**237,757 35,60724,840 31,155
Proposed Impervious Area (sf)
56 71 6871
**
% Impervious Area(total)

**
Drainage Area A Drainage Area B3Drainage Area B4 Drainage Area B5
Impervious Surface Area
On-site Buildings/Lots (sf) 25,222 0.0 0.0 0.0
On-site Streets (sf) 31,897 0.0 0.0 0.0
On-site Parking (sf) 25,027 35,60724,840 31,155
On-site Sidewalks (sf)1,733 0.0 0.0 0.0
Other on-site (sf) 153,878 0.0 0.0 0.0
Future (sf) 0.0 0.0 0.0 0.0
Off-site (sf) 0.0 0.0 0.0 0.0
Existing BUA*** (sf) 0.0 0.0 0.0 0.0
Total (sf): 237,757 35,60724,840 31,155
* Stream Class and Index Number can be determined at: http://portal.ncdenr.org/web/wq/ps/csu/classifications
**
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version Oct. 31, 2013 Page 3 of 6