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HomeMy WebLinkAbout20080214 Ver 1_Approval Letter_200802284~~~ W A T~9QG J d ~~ `C February 28, 2008 DWQ EXP No. 08-0214 Wake County Wake County Public School System Attn: Mr. Charles French 1551 Rock Quarry Road Raleigh, NC 27610 Michael F. Easley, Governor William G. Ross Jr., Secretary North Cazolina Department of Environment and Natural Resources Coleen H. Sullins, Director Division of Water Quality Subject Property: E-27 (Fuquay Elementary School) UTs to Basal Creek [030403, 27-43-15-3, B, NSW] Approval of 401 Water Quality Certification and Authorization Certification per the Neuse River Buffer Protection Rules (15A NCAC 2B .0233) with Additional Conditions Dear Mr. French: You have our approval, in accordance with the attached conditions and those listed below, to place fill within or otherwise impact 140 linear feet of intermittent stream, 33 lineaz feet of perennial stream, and 9,042 ft2 of Zone 1 and 5,834 ftZ of Zone 2 of the protected riparian buffers for the purpose of constructing the proposed elementary school, as described within your Pre-construction Notification Application dated February 14, 2008. The impacts aze covered by: General Water Quality Certification Number 3705 (GC3705). General Certification 3705 allows you to use Nationwide Permit NW39 when issued by the US Army Corps of Engineers (USAGE). 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, and Non-discharge regulations. Also, this approval to proceed with your proposed impacts or to conduct impacts to waters as depicted in your application shall expire upon expiration of the 404 Permit. This approval is for the purpose and design that you described in your PCN application (February 14, 2008) and stormwater management plan (received on February 14, 2008 with revisions received on February 20, 2008 and February 27, 2008). If you change your project, you must notify us and you may be required to send us a new application. If total fills for this project (now or in the future) exceed one acre of wetland or 150 linear feet of stream, compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h). This approval requires you to follow the conditions listed in the attached Water Quality Certification (GC 3705) and any additional conditions listed below. 401 Oversight/Express Review Permitting Unit 1650 Mail Service Center, Raleigh, North Carolina 27699-1650 2321 Crabtree Boulevazd, Suite 250, Raleigh, North Carolina 27604 Phone: 919-733-17861 FAX 919-733-6893 / Internet: http://h2o.enr.state.nc.us/ncwetlands Nose Carolina ~atura!!y An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper Wake County Public School System EXP 08-0214 Page 2 of 5 February 28, 2008 The Additional Conditions of the Certification are: Impacts Approved The following impacts are hereby approved conditions of this Certification (and Isolated approved including incidental impacts: as long as all of the other specific and general Wetland Permit) are met. No other impacts are Im act T e Amount A roved (Units) Plan Location or Re erence Stream (tem or erennial) 33 (linear feet) Febru 14, 2008 PCN a e 5 Stream (intermittent) 140 (linear feet) Febru 14, 2008 PCN a e 5 Ri arian buffer (Zone 1) 9,042 s uare feet) Febru 14, 2008 PCN a e 8 Ri arian buffer (Zone 2) 5,834 (s uare feet) Febru 14, 2008 PCN a e 8 2. 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 and authorized by this approval letter. 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. 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 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. b. Sufficient materials required for stabilization and/or repair of erosion control measures and stormwater routing and treatment shall be on site at all times. 4. Construction Stormwater Permit NCGO10000 Upon the approval of an Erosion and Sedimentation Control Plan issued by the Division of Land Resources (DLR) or a DLR delegated local erosion and sedimentation control program, an NPDES General stormwater permit (NCGO10000) administered by DWQ is automatically issued to the project. This General Permit allows stormwater to be discharged during land disturbing construction activities as stipulated by conditions in the permit. If your project is covered by this permit [applicable to construction projects that disturb one (1) or more acres], full compliance with permit conditions including the sedimentation control plan, self-monitoring, record keeping and reporting requirements are required. A copy of this permit and monitoring report forms may be found at http://h2o.enr.state.nc.c~s/su/Forms Documents.htm. Sediment and Erosion Control Measures Sediment and erosion control measures shall not be placed in wetlands or waters without prior written approval by DWQ. If placement of sediment and erosion control devices in wetlands and waters is unavoidable, then 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 devices shall be removed and the natural grade restored within two (2) months of the date that the Division of Land Resources has released the project. Wake County Public School System EXP 08-0214 Page 3 of 5 February 28, 2008 6. Stormwater Management Plan and Diffuse Flow Provisions 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 .0233(5) In an effort to comply with the diffuse flow provision of the Buffer Rule (15A NCAC 02B .0233(5)), you have provided the DWQ with stormwater wetlands, a bioretention cell, and level spreader with vegetated filter strip designs received on February 14, 2008 with revisions received on February 20, 2008 and February 27, 2008. The DWQ believes that if implemented, as per these plans, diffuse flow will be achieved. However, if diffuse flow as per 15A NCAC 02B .0233(5) has not been achieved, then the DWQ shall be notified and corrective actions to restore diffuse flow shall be taken if necessary to impede the formation of erosion gullies. At no time shall stormwater from the proposed development be piped directly through the buffer without prior written authorization by DWQ. The structural stormwater practices as approved the Division of Water Quality, 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. Stormwater easements shall be recorded for a distance of at least 10 feet on each side of all stormwater conveyances, and on all lots containing these structures including future access for maintenance. The stormwater easements shall allow for the ability to maintain the structures, perform corrective actions as described above and shall provide protection of the structures from potential alternations by future property owners. The Inspection & Maintenance (I&M) agreements for the stormwater wetlands, bioretention cell, level spreader and vegetated filter strip signed by Mr. Mike Burriss on December 20, 2007 and February 15, 2008, must transfer with the sale of the land or transfer of responsibility for the stormwater facilities and the DWQ must be notified of every transfer. 7. Work in the Dry All work in or adjacent to stream waters shall be conducted in a dry work area. Approved best management practices from the most current version of the NC Sediment and Erosion Control Manual, or the NCDOT Construction and Maintenance Activities Manual, such as sandbags, rock berms, cofferdams, and other diversion structures shall be used to minimize excavation in flowing water. If concrete is used during the construction, then a dry work area should be maintained to prevent direct contact between curing concrete and stream water. Water that inadvertently contacts uncured concrete should not be discharged to surface waters due to the potential for elevated pH and possible aquatic life/fish kills. Culvert Installation Culverts required for this project shall be installed in such a manner that the original stream profiles are not altered. Existing stream dimensions (including the cross section dimensions, pattern, and longitudinal profile) must be maintained above and below locations of each culvert. Culverts shall be designed and installed to allow for aquatic life movement as well as to prevent head cutting of the streams. If any of the existing pipes are or become perched, the appropriate stream grade shall be re-established or, if the pipes installed in a perched manner, the pipes shall be removed and re- installed correctly. Wake County Public School System EXP 08-0214 Page 4 of 5 February 28, 2008 Culvert(s) shall not be installed in such a manner that will cause aggradations or erosion of the stream up or down stream of the culvert(s). Installation of culverts in wetlands must ensure continuity of water movement and be designed to adequately accommodate high water or flood conditions. Existing stream dimensions (including the cross section dimensions, pattern and longitudinal profile) shall be maintained above and below locations of each culvert. Placement of culverts and other structures in waters, streams, and wetlands must be placed below the elevation of the streambed by one foot for all culverts with a diameter greater than 48 inches, and 20 percent of the culvert diameter for culverts having a diameter less than 48 inches, to allow low flow passage of water and aquatic life. The applicant is required to provide evidence that the equilibrium shall be maintained if requested in writing by DWQ. The establishment of native, woody vegetation and other soft stream bank stabilization techniques must be used where practicable instead of riprap or other bank hardening methods. If riprap is necessary, it shall not be placed in the streambed, unless specifically approved by the Division of Water Quality. 10. Certificate of Completion Upon completion of all work approved within the 401 Water Quality Certification or applicable Buffer Rules, 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. 11. 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 2B .0233 and GC 3705. 12. Deed Notifications Deed notifications or similar mechanisms shall be placed on all retained jurisdictional wetlands, waters and riparian buffers in order to assure compliance for future wetland, water and riparian buffer impact. These mechanisms shall be put in place prior to impacting any wetlands and/or waters approved for impact under this Certification Approval. 13. Notification of Construction The applicant and/or authorized agent shall contact the DWQ Express Review Program in writing at the letterhead address within ten (10) days of the commencement of construction. The applicant/permittee and their authorized agents shall conduct all activities in a manner consistent with State water quality standards (including any requirements resulting from compliance with §303(d) of the Clean Water Act), and any other appropriate requirements of State and Federal Law. If the Division determines that such standards or laws are not being met, including 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, then the Division may reevaluate and modify this General Water Quality Certification. Violations of any condition herein set forth may result in revocation of this Certification and may result in criminal and/or civil penalties. The authorization to proceed with your proposed impacts or to conduct impacts to waters as depicted in your application and as authorized by this Certification, shall expire upon expiration of the 404 or LAMA Permit. Wake County Public School System EXP 08-0214 Page 5 of 5 February 28, 2008 If you do not accept any of the conditions of this Certification (associated with the approved wetland or stream impacts), 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, which 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. Any disputes over determinations regarding this Authorization Certificate (associated with the approved buffer impacts) shall be referred in writing to the Director for a decision. The Director's decision is subject to review as provided in Articles 3 and 4 of G.S. 150B. This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act and the Neuse River riparian buffer protection rule as described within 15A NCAC 2B .0233. If you have any questions, please telephone Lia Myott or Joseph Gyamfi at 919-733-1786. ~ Sincerely, H. Sullins CHSlcbk/lem cc: James Shern, USACE Raleigh Regulatory Field Office Lauren Witherspoon, DWQ Raleigh Regional Office File Copy Central Files James Dasher, Soil & Environmental Cons., PA, 11010 Raven Ridge Rd, Raleigh, NC 27614 File: 080214E27FuquayElemSch(Wake)EXP+401 +NBRAuth