SW1200501_Application_20201106

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
Two bio-retention cells will be built to capture and treat the stormwater runoff for the proposed
improvement areas.

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 inaccordance with:
Coastal SW – 1995 Ph II – Post Construction
3. Stormwater runoff from this project drains to the French Broad River basin.
4. Total Property Area: 1.90 acres 5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0 acres
7. Total Property Area (4) – Total Coastal Wetlands Area (5) – Total Surface Water Area (6) = Total Project
+
Area: 1.90acres
+
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 = 30.5% %
9. How many drainage areas does the project have?2 (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 1 Drainage Area 2 Drainage Area Drainage Area
Receiving Stream Name Cane Creek Cane Creek
Stream Class * C; TrC; Tr
Stream Index Number * 6-57-(1) 6-57-(1)
Total Drainage Area (sf)26,027101,495
On-site Drainage Area (sf)26,027 58,522
Off-site Drainage Area (sf) N/A42,973
**6,148 19,040
Proposed Impervious Area (sf)
23.618.8
**
% Impervious Area(total)

**
Drainage Area B1 Drainage Area B2Drainage Area Drainage Area
Impervious Surface Area
On-site Buildings/Lots (sf) 0 0
On-site Streets (sf) 5,479 14,994
On-site Parking (sf) 0 0
On-site Sidewalks (sf)0 0
Other on-site (sf) 0 0
Future (sf) 0 0
Off-site (sf) 0 0
Existing BUA***(sf) 6694,046
Total (sf): 6,148 19,040
* 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