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HomeMy WebLinkAboutSW3191001_SSW Application NCC191801_pg 3_REV1_20191219IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. SITE IMPERVIOUS AREA WILL DRAIN TO WET POND 1 TO BE TREATED AND DETAINED AS REQUIRED BEFORE BEING DISCHARGED TO ONSITE WETLANDS. UNTREATABLE/BYPASS AREAS DRAIN AROUND THE POND OR TO ANALYSIS POINTS IDENTIFIED ON CONSTRUCTION PLANS 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 YADKIN-PEEDEE River basin. 4. Total Property Area: 11.71 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total Surface Water Area:.55 acres 7. Total Property Area (4) — Total Coastal Wetlands Area (5) — Total Surface Water Area (6) = Total Project Area+: 11.16acres + Total project area shall be calculated to exclude thefollowing: 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 overallpercent 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 = 9. How many drainage areas does the project have?4 (For high density, count 1 for each proposed engineered stormwater 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 113 Drainage Area 2 Drainage Area 3 Drainage Area IA Receiving Stream Name NORTH FORK CROOKED CREEK NORTH FORK CROOKED CREEK NORTH FORK CROOKED CREEK NORTH FORK CROOKED CREEK Stream Class * C C C C Stream Index Number * 13-17-20-1 13-17-20-1 13-17-20-1 13-17-20-1 Total Drainage Area (sf) 294,079 20,070 48,520 147,405 On -site Drainage Area (sf) 294,079 20,070 48,520 147,405 Off -site Drainage Area (sf) 0 0 0 Proposed Impervious Area** (s 211,908 390 1,878 0 % Impervious Area** total 72.00 1.9 3.9 0 Impervious" Surface Area Drainage Area I Drainage Area 2 Drainage Area 3 Drainage Area IA On -site Buildings/Lots (sf) 144,451 0 0 0 On -site Streets (sf) 39,620 0 0 0 On -site Parking (sf) 6,748 0 0 0 On -site Sidewalks (sf) 13,031 390 1,878 0 Other on -site (sf) 1,058 0 0 0 Future (sf) 7,000 0 0 0 Off -site (sf) 0 0 0 0 Existing BUA*** (sf) 0 0 0 0 Total (sf): 211,908 390 1,878 0 * Stream Class and Index Number can be determined at: hyp://portal.ncdenr.org/web/wqs/csu/classifications ** Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. *** Report only that amount of existing BUA that will remain after development. Do not report any existing BUA that is to be removed and which will be replaced by new BUA. Form SWU-101 Version Oct. 31, 2013 Page 3 of 6