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HomeMy WebLinkAboutSW5200602_Application_20201106 IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. The proposed scope of the project includes expansion of existing building and work yard within the existing developed commercial site. Approx. 4.0 ac of added impervious area will be treated for water quality by two surface sand filters and level spreader filter strips. 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: 3. Stormwater runoff from this project drains to the Tar-Pamlico River basin. 4. Total Property Area: 30.0 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total Surface Water Area: 0 acres + Area: 30.0 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 (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 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 = 55.5 % 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 Drainage Area 1 Drainage Area 2 Drainage Area Drainage Area Receiving Stream Name Brandy Creek Brandy Creek Stream Class * B;NSW B;NSW Stream Index Number * 28-29-3-(1) 28-29-3-(1) Total Drainage Area (sf) 256254 93066 On-site Drainage Area (sf) 256254 82104 Off-site Drainage Area (sf) 10962 **144687 49349 Proposed Impervious Area (sf) ** 56.5 53.0 % Impervious Area(total) ** Impervious Surface Area Drainage Area 1 Drainage Area 2 Drainage Area Drainage Area On-site Buildings/Lots (sf) 2163 7341 On-site Streets (sf) 0 On-site Parking (sf) On-site Sidewalks (sf) 1448 33417 Other on-site (sf) 102885 Future (sf) Off-site (sf) 8591 Existing BUA*** (sf) 38191 Total (sf): 144687 49349 * 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