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HomeMy WebLinkAbout20100735 Ver 1_Approval Letter_20101109A LVIfA RME R North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary November 9, 2010 Kevin and Margaret Bigham 4007 Guardian Angel Avenue Indian Trail, NC 28079 DWQ Project # 2010-0735 County: Mecklenburg Subject Property: Proposed Professional Buildings and Parking on Lawyer's Road, Stallings, NC UT to Four Mile Creek [030834, 11-137-9-4, C] AUTHORIZATION of the Goose Creek Riparian Buffer Rule (15A NCAC 02B.0607) Authorization Certificate Dear Mr. and Mrs. Bigham: You have our authorization, in accordance with 15A NCAC 02B .0607 and any conditions listed below, to impact approximately 1,100 ft2 of the Goose Creek protected riparian buffers for the purpose of constructing the two bioretention cells and discharge pipe from the dry detention basin at the subject property as described within your major variance application dated July 16, 2010, received by the Division of Water Quality (DWQ) on September 7, 2010, with additional information received by DWQ on October 12, 2010, October 20, 2010, October 27, 2010 and November 2, 2010. In addition, you should obtain or otherwise comply with any other required federal, state or local permits before you go ahead with your project including (but not limited to) Erosion and Sediment Control, Non-discharge regulations. This authorization certification is for the purpose and design that you described in your application. If you change your project, you must notify us and you may be required to send us a new application. If the property is sold, the new owner must be given a copy of this authorization letter and is thereby responsible for complying with all conditions. This authorization requires you to follow the conditions listed below. The Additional Conditions of the Certification are: Written Stormwater Management Plan (No Further Approval Needed) The Goose Creek Buffer Management Rule, 15A NCAC 02B .0607, allows: "new drainage ditches, roadside ditches and stormwater outfalls provided that a stormwater management facility is installed to minimize the sediment, nutrients including ammonia and other pollution and attenuate flow before the conveyance discharges through the riparian buffer." The stormwater treatment system on this site (consisting of two bioretention cells in line with a dry detention pond) has been determined by the DWQ to provide an acceptable level of stormwater management to allow the discharge of treated stormwater through the protected Goose Creek Buffer to the receiving stream. 401 Oversight/Express Review Permitting Unit One 1650 Mail Service Center, Raleigh, North Carolina 27699-1650 NO Carolina Location: 221 Crabtree Blvd., Site 250, Phone 9193733-17861 FAX: 919u-733-6893 aleigh, North Carolina 27604 atural/y Internet: http://portal.ncdenr.org/web/wgNus An Equal Opportunity 1 Affirmative Action Employer Bigham Page 2 of 4 November 9, 2010 The final, written stormwater management plans (including a signed and notarized Operation and Maintenance Agreement) dated October 19, 2010, must be implemented and the stormwater management facilities shall be constructed and operational before any permanent building is occupied at the subject site. The structural stormwater practices as approved by this Office as well as drainage patterns must be maintained in perpetuity. No changes to the structural stormwater practices shall be made without written authorization from the Division of Water Quality. 2. Impacts Approved The following impacts are hereby approved as long as all of the other specific and general conditions of this Certification (or Isolated Wetland Permit) are met. No other impacts are approved including incidental impacts: Amount Approved (Units) Plan Location or Reference Buffers 1,100 (square ft. Variance and email 3. Erosion & Sediment Control Practices 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. 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 North Carolina Surface Mining Manual. d. The reclamation measures and implementation must comply with the reclamation in accordance with the requirements of the Sedimentation Pollution Control Act. 4. No Waste, Spoil, Solids, or Fill of Any Kind No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond the footprint of the impacts depicted in the Pre-Construction Notification. All construction activities, including the design, installation, operation, and maintenance of sediment and erosion control Best Management Practices, shall be performed so that no violations of state water quality standards, statutes, or rules occur. 5. No Sediment & Erosion Control Measures w/n Wetlands or Waters Sediment and erosion control measures shall not be placed in wetlands or waters without prior approval by the Division. If placement of sediment and erosion control devices in wetlands and waters is unavoidable, design and placement of temporary erosion control measures shall not be conducted in a manner that may result in dis-equilibrium of wetlands or stream beds or banks, adjacent to or upstream and down stream of the above structures. All sediment and erosion control devices shall be removed and the natural grade restored within two (2) months of the date that the Division of Land Resources or locally delegated program has released the project. Bigham Page 3 of 4 November 9, 2010 6. Diffuse Flow An additional condition is that all stormwater shall be directed as diffuse flow at non-erosive velocities through the protected stream buffers and will not re-concentrate before discharging into the stream as identified within 15A NCAC 2B .0607(c). 7. Protective Fencing The outside buffer, wetland or water boundary and along the construction corridor within these boundaries approved under this authorization shall be clearly marked with orange warning fencing (or similar high visibility material) for the areas that have been approved to infringe within the buffer, wetland or water prior to any land disturbing activities to ensure compliance with 15A NCAC 213.0607. 8. Certificate of Completion Upon completion of all work approved within this authorization, and any subsequent modifications, the applicant is required to return the attached certificate of completion to the 401 Oversight/Express Review Permitting Unit, North Carolina Division of Water Quality, 1650 Mail Service Center, Raleigh, NC, 27699-1650. 9. Deed Notifications Deed notifications or similar mechanisms shall be placed on all retained jurisdictional wetlands, waters and protective buffers in order to assure compliance for future wetland, water and buffer impact. These mechanisms shall be put in place at the time of recording of the property, or of individual lots, whichever is appropriate. A sample deed notification can be downloaded from the 401/Wetlands Unit web site at: http://portal.ncdenr.org/web/wq/swp/ws/401. The text of the sample deed notification may be modified as appropriate to suit to this project. Any disputes over determinations regarding this Authorization (associated with the approved buffer impacts) shall be referred in writing to the Director within thirty (30) days of receipt of this notice for a decision. You can contest the Director's decision as provided in Articles 3 and 4 of G.S. 150B. To contest the Director's decision you must file a petition for an administrative hearing. You may obtain the petition form from the office of Administrative hearings. You must file the petition with the office of Administrative Hearings within sixty (60) days of receipt of this notice. A petition is considered filed when it is received in the office of Administrative Hearings during normal office hours. The Office of Administrative Hearings accepts filings Monday through Friday between the hours of 8:00am and 5:00pm, except for official state holidays. The original and one (1) copy of the petition must be filed with the Office of Administrative Hearings. The petition may be faxed-provided the original and one copy of the document is received by the Office of Administrative Hearings within five (5) business days following the faxed transmission. The mailing address for the Office of Administrative Hearings is: Office of Administrative Hearings 6714 Mail Service Center Raleigh, NC 27699-6714 Telephone: (919)-733-2698, Facsimile: (919)-733-3478 Bigham Page 4 of 4 November 9, 2010 A copy of the petition must also be served on DENR as follows: Ms. Mary Penny Thompson, General Counsel Department of Environment and Natural Resources 1601 Mail Service Center Raleigh, NC 27699-1601 This Authorization shall expire five (5) years from the date of this letter. This letter completes the review of the "No Practical Alternatives" determination under 15A NCAC 2B .0607. If you have any questions or would like a copy of the buffer rules, please call Alan Johnson at: 704-663-1699. This letter does not authorize any impacts to either Waters of the United States or Waters of the State. Please contact the US Army Corps of Engineers (USACE) or NC Division of Water Quality (DWQ) if any impacts are proposed to either of these waters. Sincerely, ?I Coleen H. Sullins ?P- . CHS/ijmlasc Enclosures: Certificate of Completion cc: Alan Johnson, Mooresville Regional Office DLR Raleigh Regional Office Nicholas Parker, Amicus Engineering, 5151 Poplar Tent Rd, Ste 130, Concord, NC 28027 File Copy Filename: 100735ProposedProfessionalBuildingsandParkingonLawyersRoad(Mecklenburg)GBR