SW3190804_2712 - Pine Forest II Storm Water Application Page Revised 2-11-20_2/14/2020

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
The storm water runoff will be collected and dischar ed into one of the two BMP's each of which will
include dKy detention for quinft management and sand filters for ualimanagement.
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 11- Post Construction
3. Stormwater runoff from this project drains to the Yadkin Pee Dee River basin.
4. Total Property Area: 29.36 acres
5. Total Coastal Wetlands Area: acres
6_ Total Surface Water Area: ±.397 acres
7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area': 28.96 acres
T 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 MHM line. The resultant project area is used to
calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MHVd) line may
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 30.81
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
Draina e Area 1
Drai_ua e Area 2
Drainage Area _
Draina e Area
Receiving Stream Name
Duck Creek
Duck Creek
_
Stream Class *
C
C
Stream Index Number *
12-108-20-4-3
12-108-204-3
Total Drainage Area (sf)
425191
360327
On -site Drainage Area (sf)
424621
346829
Off -site Drainage Area (sf)
570
13498
Proposed Impervious Area** (so
211335
133009
% Impervious Area** (total)
49.70
36.91
Impervious' Surface Area
Drainage Area 1
Drainage Area 2
Drainage Area _
Drainage Area
On -site Buildings/Lots (so
114974
67605
_
On -site Streets (sf)
57533
39979
On -site Parking (sf)
On -site Sidewalks (so
11940
7909
Other on -site (sf)
24707
13917
Future (sf)
Off -site (sf)
1860
Existing BUA*** (so
2181
1739
Total (sf):
211335
133009
x 5tream Class and Index Number can be determined at: ht . ortal.ncdenr.or veb s csu classi nations
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
Forrn SWU-101 Version Oct. 31, 2013 Page 3 of 6