SW1170501_Application Form_20221223 (3)

IV. PROJECT INFORMATION
1. In the space provided below, briefly summarize how the stormwater runoff will be treated.
In compliance with the terms of the existing permit, low -density design elements will be utilized to collect
convey, and discharge stormwater runoff, Permanent conveyance measures include stabilized cone ance
channels roadside ditches cross -culverts and energy dissi ation aprons for outfall stabilization.
2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved:
❑ Approval of a Site Specific Development flan 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 uz accordance with:
❑ Coastal SW -1995 ❑ Ph 11 -- Post Construction
3. Stormwater runoff from this project drains to the French Broad River basin.
4. Total Property Area: 50.5 acres
5. Total Coastal Wetlands Area: 0.0 acres
6. Total Surface Water Area: 0.5 acres
7. Total Property Area (4) -- Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area*:50.0 acres
+ Total project area shall be calculated to exclude the follozing: the rrarmal pool of impounded structures, the area
betzveen the ba rlcs of streaurs and rivers, the area belozo the Normal High Water (NHW) lure or Mean High Water
(MHW) lure, and coastal wetlands landward front the NHW (orMHW) line. The resultant project area is used to
calculate overall percent bit ilt upon area (BUA), Non -coastal wetlands landzvar•d of the NHW (or MHW) lime pray
be included in the total project area.
8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 9.3
9. How many drainage areas does the project have? 1 (For high density, count .I for each proposed engineered
stoninvater BMP. For low density and other projects, use I 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
Draina e Area
Drainage Area _
Draina e Area _
Receiving Stream Name
Boylston Creek
Stream Class *
C
Stream Index Number *
6-52-(0.5)
Total. Drainage Area (sf)
2,178,000sf
On -site Drayage Area (sf)
2,178,000sf
Off -site Drainage Area (sf)
Oac
Proposed Impervious Area *A' (so
202,870sf
% Impervious Area** total
9.3%
Impervious" Surface Area
Drainage Area 1
Drainage Area
Drainage Area
Drainage Area _
On -site Buildings/ Lots (so
50957
On -site Streets (sf)
100553
On -site Parking (sf)
50239
On -site Sidewalks (sf)
0
Other on -site (sf)
1121
Future (so
0
Off -site (so
0
Existing BUA*** (so
0
Total (sf):
202,870
* Stream Class and Index: Ntuuber can be determined at: lrtt : ortal,rrcderrr.or zveb w s tsar ctassi lcatrons
Imppervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sideivalks, gravel areas, etc.
Forni SWU-101 Version Oct. 3l, 2013 Page 3 of