SW4070701_Application_20200106

IV. PROJECT INFORMATION
1. In the space provided below, bnefly summarize how the stormwater runoff will be treated.
The developed areas of the project will be built on the ridge, allowing stormwater to drain across many acres
of undeveloped land prior to reaching any buffers or streams. Grassed swales and some piping will collect
drainage and allow it to discharge beyond newly Faded slopes. Rip -rap dissipators will be placed to allow
to spread and to slow down velocities.
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 regulations) the project has been designed in accordance with:
❑ Coastal SW -1995 ❑ Ph 11- Post Construction
3. Stormwater runoff from this project drains to the Wata
4. Total Property Area: 109.33 acres
River basin.
5. Total Coastal Wetlands Area: 0 acres
6. Total Surface Water Area: 0.04 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area+:109.29 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 (NHM line or Mean High Water
(MHM line, and coastal wetlands landward from the NHW (or MHM line. The resultant project area is used to
calculate overall percent built upon area (B UA). Non -coastal wetlands landward of the NHW (or MHM line may
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 12.0
9. How many drainage areas does the project have?1 (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 _
Drainage Area _
Drainage Area _
Drainage Area _
Receiving Stream Name
Watauga
Stream Class *
B, T, HQW
Stream Index Number *
8-(1)
Total Drainage Area (sf)
15,024,715
On -site Drainage Area (sf)
15,024715
Off -site Drainage Area (sf)
0
Proposed Impervious Area** (sf)
571,829
Impervious Area** (total)
12
Impervious- Surface Area
Drainage Area _
Drainage Area _
Drainage Area _
Drainage Area _
On -site Buildings/Lots (so
129,488
On -site Streets (so
48,940
On -site Parking (sf)
130,054
On -site Sidewalks (so
14,427
Other on -site (sf)
Future (sf)
Off -site (sf)
Existing BUA*** (sf)
248,920
Total (sf):
571,829
Stream Class and Index Number can be determined at: http.aortal.ncdenr.or web/wg&s/csu/classifications
Im ervious 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