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Home My WebLink AboutNCC230218_ESC Approval Submitted_20230125ROY COOPER Governor ELIZABETH S. BISER Secretary s BRIAN WRENN Director NC:RTii CAR01 zN A Est, nownentaf Quality November 3, 2022 LETTER OF APPROVAL WITH MODIFICATIONS Ground Thunder Construction, Inc. Attention: Jake Kimble, VP -COO Post Office Box 791096 Charlotte, North Carolina 28206 RE: Project Name: Lot 19 Technology Drive -Indian Trail Acres Approved: 2.0 Project ID: UNION-2022-014 County: Union, City: Indian Trail Address: Technology Drive River Basin: Yadkin-PeeDee Stream Classification: Other Submitted By: Mansour Edlin, PE, Mansour Edlin Consulting Date Received by LQS: October 19, 2022 Plan Type: Revised Dear Mr. Kimble: 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/NCG01. 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 413 .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 �,.ME 704-663-1699 Letter of Approval with Modifications Ground Thunder Construction, Inc. November 3, 2022 Page 2 of 3 1. 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 I I3A-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: Mansour Edlin, PE Letter of Approval with Modifications Ground Thunder Construction, Inc. November 3, 2022 Page 3 of 3 MODIFICATIONS REQUIRED FOR APPROVAL Project Name: Lot 19 Technology Drive -Indian Trail Project ID: Union-2022-014 County: Union 1. In Phase 1 (Sheet C8.0), the diversion berm along the East side of the site shall be located along the edge of the LOD (as far as possible) and still maintain positive drainage to the basin. Also, the soil stockpile shall be removed as necessary to obtain positive drainage to the basin. In addition, the diversion berm on the northwest side of site shall be located along the edge of the LOD (as far as possible) and still maintain positive drainage to the basin. This diversion berm needs to be located downstream of the proposed wall (if possible). This diversion berm must remain intact during Phase 2. 2. In Phase 1 (Sheet C8.0), the installation of the 18" HDPE by-pass pipe shall be conducted within a period of "no rainfall" for duration of the anticipated construction time frame. The entire pipe shall be properly covered with sufficient fill (see Phase 2 for proposed topo contours). Gravel and Rip -Rap Filter Berm inlet protection shall be installed with a minimum 3' top crest width (see detail on Sheet C 13.0) at pipe inlet. The channel between the existing pipe outlet and above this 18" HDPE shall not be disturbed. 3. In Phase 2 (Sheet C9.0), a diversion berm shall be provided along the East side of the site (along the edge of the LOD as far as possible) to divert upland areas to the basin. 4. In Phase 2 (Sheet C9.0), the removal of the existing pipe and installation of the new 18" HDPE pipe shall be conducted within a period of "no rainfall" for duration of the anticipated construction time frame. The channel between this new pipe and pipe installed in Phase 1 should not be disturbed. If this section of channel must be disturbed, it shall be stabilized immediately with an adequately sized rip -rap. 5. During the transition phase between Phase 1 & Phase 2, diversion berms shall be installed as necessary upstream of the proposed retaining walls to direct all upland areas to the basin. The diversion berms shall isolate the wall construction area to have the minimum amount of drainage area as possible.