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HomeMy WebLinkAboutSW4191001_AddInfoRequest_20191203ROY COOPER Governor MICHAEL S. REGAN Secretary S. DANIEL SMITH Director Charles P. Koch, PE EarthCentric Engineering, Inc. 204 West Clay Street Mebane, NC 27302 NORTH CAROLINA Environmental Quality December 3, 2019 Subject: Request for Additional Information Stormwater Permit No. SW4191001 Winding Creek Subdivision Alamance County Dear Mr. Koch: The Division of Energy, Mineral and Land Resources (DEMLR), received a Stormwater Management Permit Application for the subject project on October 23, 2019. A review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. Please complete a low density supplemental form. The form can be found by downloading Supplement EZ at the Stormwater Design Manual website and selecting low density. 2. Please delineate any wetlands on site or a note that none exist [I 5A NCAC 02H .1042(g)(iii)]. If the hatched area on the plans represents wetlands please add a note indicating this and the individual/entity who made the determination. 3. Lots 4, 5, and 6 as shown on the Existing Conditions & Demolition Plan (C2.0) are shown as being owned by Timber Creek Estates. A deed, lease, or purchasing agreement must be provided to indicate that the applicant has a legal right to develop these properties. 4. The ditch details on Sheet D4.0 show that the side slopes of the roadside ditches are steeper than 3: 1. Please revise the plans and details to show that the side slopes are no steeper than 3:1 [15A NCAC 02H .1003(2)(c)(i)]. 5. Please add a note to the ditch details on Sheet D4.0 to show that the ditches must be vegetated and provide calculations showing that the ditches will not have erosion during the peak flow from the 10-year storm in their permanent vegetated condition [I5A NCAC 02H .1003(2)(c)(ii)]. D EQ �� North Carolina Department of Environmental Quality Division of Energy, Mineral and Land Resources 512 North Salisbury Street 1 1612 Mail Service Center Raleigh, North Carolina 27699-1612 NORTH CAROLINA Depadm.mofEnmmnm.maaualfty /� 919.707.9200 6. Provide pdfs of all revisions, 2 hardcopies of revised plan sheets, and 1 hardcopy of other documents. Pdfs must be uploaded using the form at: hltps:Hedocs.deq.nc.gov/Forms/SW ProjectSubmittal Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to January 2, 2020, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. Please reference the State assigned project number SW4191001 on all correspondence. If you need additional time to submit the information, please submit your request for a time extension to the Division at the contact below. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. If you have any questions concerning this matter please feel free to contact me at Corey.Anen(cncdenr.gov or (919) 707-3649. Sincerely, Corey Anen Environmental Engineer Stormwater Program cc: Winston-Salem Regional Office