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Home My WebLink AboutNCC220765_ESC Approval Submitted_20220215ROY COOPER Governor ' 1 ELIZABETH S. BISER Secretary , x BRIAN WRENN Director Envlronnw�Vol Quality February 10, 2022 LETTER OF APPROVAL WITH MODIFICATIONS Lincoln County Attention: John Henry, Facilities Management Director 353 North Generals Boulevard Lincolnton, North Carolina 28092 RE: Project Name: Lincoln County Emergency Services Acres Approved: 4.2 Project ID: LINCO-2021-006 County: Lincoln, City: Lincolnton Address: Sigmon Rd. River Basin: Catawba Stream Classification: Other Submitted By: Brian Crutchfield, PE, Timmons Group Date Received by LQS: January 31, 2022 Plan Type: Revised Dear Mr. Henry: This office has reviewed the subject erosion and sedimentation control plan. We find the plan to be acceptable with modifications and hereby issue this letter of Approval with Modifications. The Modifications Required for Approval are listed on the attached page. This plan approval shall expire three (3) years following the date of approval, if no land -disturbing activity has been undertaken, as is required by Title 15A NCAC 413 .0129. As of April 1, 2019, all new construction activities are required to complete and submit an electronic Notice of Intent (eNOI) form requesting a Certificate of Coverage (COC) under the NCGO10000 Construction General Permit. After the form is reviewed and found to be complete, you will receive a link with payment instructions for the $100 annual permit fee. After the fee is processed, you will receive the COC via email. As the Financially Responsible Party shown on the FRO form submitted for this project, you MUST obtain the COC prior to commencement of any land disturbing activity. The eNOI form may be accessed at deq.nc.gov/NCGO1. Please direct questions about the eNOI form to the Stormwater Program staff in the Raleigh central office. If the owner/operator of this project changes in the future, the new responsible party must obtain a new COC. Title 15A NCAC 4B .0118(a) and the NCGOI permit require that the following documentation be kept on file at the job site: North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources Mooresville Regional Office 1 610 East Center Avenue, Suite 3011 Mooresville, North Carolina 28115 704-663-1699 - Letter of Approval with Modifications Lincoln County February 10, 2022 Page 2 of 3 The approved E&SC plan as well as any approved deviation. 2. The NCGOI permit and the COC, once it is received. 3. Records of inspections made during the previous 30 days. Also, this letter gives the notice required by G.S. 113A-61.1(a) of our right of periodic inspection to ensure compliance with the approved plan. North Carolina's Sedimentation Pollution Control Act is performance -oriented, requiring protection of existing natural resources and adjoining properties. If, following the commencement of this project, it is determined that the erosion and sedimentation control plan is inadequate to meet the requirements of the Sedimentation Pollution Control Act of 1973 (North Carolina General Statute 113A-51 through 66), this office may require revisions to the plan and implementation of the revisions to ensure compliance with the Act. Acceptance and approval of this plan is conditioned upon your compliance with Federal and State water quality laws, regulations, and rules. In addition, local city or county ordinances or rules may also apply to this land - disturbing activity. This approval does not supersede any other permit or approval. Please note that this approval is based in part on the accuracy of the information provided in the Financial Responsibility Form, which you provided. You are requested to file an amended form if there is any change in the information included on the form. In addition, it would be helpful if you notify this office of the proposed starting date for this project. Your cooperation is appreciated. Sincerely, Shannon Leonard Assistant Regional Engineer Land Quality Section Enclosures: Certificate of Approval Modifications Required for Approval NCGO1 Fact Sheet c: Inspection Department ec: Brian Crutchfield, PE Letter of Approval with Modifications Lincoln County February 10, 2022 Page 3 of 3 MODIFICATIONS REQUIRED FOR APPROVAL Project Name: Lincoln County Emergency Services Project ID: LINCO-2021-006 County: Lincoln 1. Rock check dams shall be constructed per attached detail. 1'3" et t WP%!1T -Ili.... 44-F7 Filte Practice Standards and Spec ications 1.5' min. 9" min Plan View Cross -Section View f-IfTer cfoTn Figure 6.83b Stone check dam stone should be placed over the channel banks to keep water from cutting around the dam_ Maintenance Inspect check dams and channels at least weekly and after each significant (112 inch or greater) rainfall event and repair immediately. Clean out sediment,. straw, limbs, or other debris that could clog the channel when needed. Anticipate submergence and deposition above the check dam and erosion from high flows around the edges of the dam. Correct all damage immediately. If significant erosion occurs between dams, additional measures can be taken such as, installing a protective riprap liner in that portion of the channel (Practice 6.31, Riprap-line and Paved Channels). Remove sediment accumulated behind the dams as needed to prevent damage to channel vegetation, allow the channel to drain through the stone check dam, and prevent large flows from carrying sediment over the dam. Add stones to dams as needed to maintain design height and cross section. References Runoff'Conveyance Measures 6.30, Grass -lined Channels 6.31, Riprap-lined and Paved Channels North Carolina Department of Transportation Standard Specifications for Roads and Structures Rev. 6t06 6.83.3 2 � « . « . * « I M n