SW6210904_Application Form_20230803 (2)

IV. PROJECT INFORMATION
1. In the space provided below,briefly summarize how the stormwater runoff will be treated.
The majority of impervious across Phases 1D-E,2A-D,&6A-G will be captured by two(2) stormwater control
measures (wet ponds).Low density area will drain from back of lots,road stubs,and sidewalks through
conservation buffers as dispersed flow.
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:116.59 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+:116.59 acres
+ 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(NI-ITN) line or Mean High Water
(MI-ITN)line, and coastal wetlands landward from the NHW(or MHVV)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 =34.6
9. How many drainage areas does the project have?3 (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 3 Drainage Area
Receiving Stream Name Hector Creek Hector Creek Hector Creek
Stream Class * WS-IV;HQW WS-IV;HQW WS-IV;HQW
Stream Index Number* 18-15-(0.4),18- 18-15-(0.4),18- 18-15-(0.4),18-
15-(0.7) 15-(0.7) 15-(0.7)
Total Drainage Area(sf) 1,237,103 2,324,098 1,747,537
On-site Drainage Area (sf) 1,237,103 2,093,913 1,747,431
Off-site Drainage Area(sf) 0 230,185 106
Proposed Impervious Area**(sf) 624,828 1,018,520 209,691
/ Impervious Area**(total) 51 44 12
Impervious"*Surface Area Drainage Area 1 Drainage Area 2 Drainage Area 3 Drainage Area
On-site Buildings/Lots (sf) 342,765 584,839 93,697
On-site Streets (sf) 146,903 247,897 29,186
On-site Parking (sf)
On-site Sidewalks (sf) 43,736 72,495 7,679
Other on-site (sf) 68,513 27,653
Future(sf) 22,911 74,466 51,385
Off-site (sf) 38,822 91
Existing BUA***(sf)
Total (sf): 624,828 1,018,519 209,691
* Stream Class and Index Number can be determined at: http://portal.ncdenr.org/web/wq/ps/csu/classifications
Form SWU-101 Version Oct. 31,2013 Page 3 of 6