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HomeMy WebLinkAbout20110933 Ver 1_Approval Letter_20111020 � i fi��� �� NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue - Coleen H. Sullins Dee Freeman Governor Director Secretary November 1, 2011 DWQ# 11-0933 Gaston County ' Mr. Mike Holder, P.E. NCDOT Division 12 P.O. Box 47 Shelby, NC 28151 APPROVAL of Catawba Riparian Buffer Authorization with Additional Conditions Dear Mr. Holder: You have our approval, in accordance with the attached conditions and those listed below, to permanently impact 645 square feet of riparian buffer(180 square feet of fill in Zone 1 and 465 square feet of fill in Zone 2) and to temporarily impact 990 square feet of riparian buffer(300 square feet in Zone 1 and 690 square feet in Zone 2) on the South Fork of the Catawba River, as described in your application received by the Division of Water Quality (DWQ) on October 20, 2011. The location of the project is State Road 2014 (Lakewood Drive) in Gaston County. This approval is valid for the Catawba Riparian Buffer Rules (15A NCAC 2B.0245). This project is necessary to provide road realignment and guardrail installation (safety) and is therefore considered allowable without mitigation. Please note that you should get any other federal, state or local permits before proceeding with your project, including those required by (but not limited to) Sediment and Erosion Control, Non-Discharge, and Water Supply Watershed regulations. This approval is valid solely for the purpose and design that you described in your application (unless modified below). � Should your project change, you must notify the DWQ in writing and you may be required to submit a new application. If the property is sold, the new owner must be given a copy of this Certification and approval letter and is thereby responsible for complying with all conditions. If total wetland fills for this project (now or in the future) exceed one acre, or if total impacts to streams (now or in the future) exceed 150 linear feet, compensatory mitigation may be required as described in 15A NCAC 2H.0506 (h)(6) and (7). For this approval to remain valid, you must adhere to the conditions listed in the attached certification and those listed below: 1. All stormwater runoff shall be directed as sheetflow through buffers at non-erosive velocities, unless otherwise approved by this certification. , 2. All portions of the proposed project draining to 303(d) listed watersheds that are impaired due to turbidity shall be designed, constructed, and operated with sediment and erosion control measures that meet Design Standards in Sensitive Watersheds [15A NCAC 4B .0124]. However, due to the size of the project, NC DOT shall not be required to meet 15A NCAC 4B .0124(a) regarding the maximum amount of uncovered acres. 3. All riparian buffers impacted by the placement of temporary fill or clearing activities shall be restored to the preconstruction contours and revegetated. Maintained buffers shall be permanently revegetated with non-woody species by the end of the growing season following completion of construction. For the purpose of this condition, maintained buffer areas are defined as areas within.the transportation corridor that will be subject to regular NCDOT maintenance activities, including mowing. The area with non-maintained buffers shall be permanently revegetated with native woody species before the next growing season following completion of construction. Mooresville Regional O�ce Location:610 East Center Ave.,Suite 301 Mooresville,NC 28115 0112 Phone:(704)663-16991 Fax:Q04)fi63£0401 Customei Service:1-877-623-6748 NorthCarol in a Internet htto:lloodal.ncdencorqlweblwq �^n��Nn��� AnEqualOpportunitylAKrmativeACtionEmployer—W%Recycled110%POSIConsumerpaper �� ,/�t «t , Mr. Mike Holder, P.E. . Page Two 4 4. The outside buffer, wetland or water boundary located within the construction corridor, approved by this authorization, shall be clearly marked by highly visible fencing prior to any land disturbing activities. Impacts to areas within the fencing are prohibited unless otherwise authorized by this Certification. 5. If concrete is used during construction, a dry work area shall be maintained to prevent direct contact between curing concrete and stream water. Water that inadvertently contacts uncured concrete shall not be discharged to surtace waters due to the potential for elevated pH and possible aquatic life and fish kills. 6. During,the construction of the project, no staging of equipment of any kind is permitted in waters of the U.S. or protected riparian buffers. 7. The use of riprap above the normal high water mark shall be minimized. Any riprap placed for stream stabilization shall be placed in stream channels in such a manner that it does not impede aquatic life passage. 8. Heavy equipment shall be operated from the banks rather than in the stream channel in order minimize sedimentation and reduce the introduction of other pollutants into the stream. 9. Temporary dewa[ering sites must be restored to pre-existing conditions unless more natural geomorphic conditions can be provided. 10. All work in or adjacent to stream waters shall be conducted in a dry work area. Approved BMP measures from the most current version of the NCDOT Construction and Maintenance Activities manual such as sandbags, rock berms, cofferdams and other diversion structures shall be used to prevent excavation in flowing water. 11. All mechanized equipment operated near surtace waters must be regularly inspected and maintained to prevent contamination of stream waters from fuels, lubricants, hydraulic fluids, or other toxic materials. 12. All fill slopes located in jurisdictional wetlands shall be placed at slopes no flatter than 3:1, unless otherwise authorized by this certification. 13. Discharging hydroseed mixtures and washing out hydroseeders and other equipment in or adjacent to surface waters is prohibited. 14. A copy of this Water Quality Certification shall be posted on the construction site at all times. In addition, the Water Quality Certification and all subsequent modifications, if any, shall be maintained with the Division Engineer and the on-site project manager. 15. Native riparian vegetation must be re-established within the construction limits of the project by the end of the growing season following completion of construction. r 16. Sediment and erosion control measures shalf not be placed in wetlands or waters to the maximum extent practicable. If placement of sediment and erosion control devices in wetlands and waters is unavoidable, they shall be removed and the natural grade restored within 30 days after the Division of Land Resources has released the project. 17. Erosion and sediment control practices must be in full compliance with all specifications governing the proper design, installation and operation and maintenance of such Best Management Practices in order to protect surface waters standards: a. The erosion and sediment control measures for the project must be designed, installed, operated, and maintained in accordance with the most recent version of the North Carolina Sediment and Erosion Control Planning and Design Manual. b. The design, installation, operation, and maintenance of the sediment and-erosion control measures must be such that they equal, or exceed, the requirements specified in the most recent version of the North Carolina Sediment and Erosion Control Manual. The devices shall be maintained on all construction.sites, borrow sites, and waste pile (spoil) projects, including contractor-owned or leased borrow pits associated with the project , ,, Mc Mike Holder, P.E. s Page Three c. For borrow pit sites, the erosion and sediment control measures must be designed, installed, operated, and maintained in accordance with the most recent version of the Norfh Carolina Surface Mining Manual. d. The reclamation measures and implementation must comply with the reclamation in accordance with the requirements of the Sedimentation Pollution Cohtrol Act. 18. The Nortli Carolina Department of Transportation (NCDOT) and its contractors and/or agents shall not excavate, fill or ; perform mechanized land clearing at any time in the construction or maintenance of this project within waters and/or wetlands, except as authorized by this Certification, or any modification to this Certification (e.g., no work shall occur outside of the footprint of the plans provided). In addition, there shall be no excavation from or waste disposal into � jurisdictional wetlands or waters associated with this Certification without appropriate modification. If this occurs, II compensatory mitigation may be required since it is a direct impact from road construction activities. ' 19. The Permittee shall ensure that the final design drawings adhere to the certification and to the drawings submitted for approval. 20. The Permittee shall report any violations of this certification to the Division of Water Quality within 24 hours of discovery. " � 21. Upon completion of the project, the NCDOT Division Engineer shall complete and return the enclosed "Certificate of Completion" form to notify DWQ when all work included in the 401 Certification has been completed. Please include photographs upstream and downstream of the structure to document correct installation. 22. Continuing Compliance. NCDOT shall conduct its activities in a manner so as not to contravene any state water quality standard [including any requirements for compliance with section 303(d) of the Clean Water Act] and any other appropriate requirements of state and federal law. If DWQ determines that such standards or laws are not being met (including the failure to sustain a designated or achieved use) or that state or federal law is being violated, or that further conditions are necessary to assure compliance, DWQ may reevaluate and modify this certification to include conditions appropriate to assure compliance with such standards and requirements in accordance with 15 A NCAC 2H.0507(d). Before codifying the certification, DWQ shall notify NCDOT and the USACE, provide public notice in accordance with 15A NCAC 2H.0503, and provide opportunity for public hearing in accordance with 15A NCAC 2H.0504. Any new or reyised conditions shall be provided to NCDOT in writing, shall be provided to the USACE for reference in any permit issued pursuant to Section 404 of the Clean Water Act, and shall also become conditions of the 404 Permit for the project. If you do not accept any of the conditions of this Certification, you may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition that conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, N.C. 27699-6714. This Certification and its conditions are final and binding unless you ask for a hearing. This letter completes the review by the Division of Water Quality under Section 401 of the Clean Water Act. If you have any questions, please telephone Polly Lespinasse in the Mooresville Regional Office at 704-663-1699. Sincerely, _._� � ��o__------ forColeen H. Sullins Attachments cc: Sonia Carrillo, DWQ Wetlands Unit File Copy .