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HomeMy WebLinkAboutSW4090801_HISTORICAL FILE_20090901STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW �/%%D�O l DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE DOC DATE �l9Dgli ?C/ YYYYMMDD ECS CAROLIN , LLP "Setting the Standard for Service" Geotechnical o Construction Materials e Environmental • Facilities Mr. William McDonald CIO Mr. Tim Jennings Stimmel Associates, PA 601 N. Trade Street Suite 200 Winston Salem, North Carolina 27101 Reference: Report of Seasonal High Water Table Determination Davie Kidney Center Mocksville, North Carolina ECS Project 09-17676 Dear Mr. McDonald: August 28, 2009 ECE SEP 0 12009 ECS Carolinas, LLP (ECS) is pleased to provide you with our Report of Seasonal High Water Table (SHWT) Determination for two bio-retention cells to be constructed at the Davie Kidney Center PROJECT INFORMATION The two bio-retention cells are located on the proposed Davie Kidney Center site on Interstate Drive, Mocksville, North Carolina. BMP # 1 is located adjacent to the southern property line near Interstate Drive. BMP # 2 is located adjacent to the western property line. SCOPE OF SERVICES ECS has conducted an investigation of the soils to determine the seasonal high water table in the area of the two bio-retention cells. Elevations of the bottom of the two bio-retention cells were provided by Stimmel Associates, PA. Soil borings were drilled with a drill rig to an elevation greater than two feet below the bottom of the bio-retention cells, observation/determination of the seasonal high water table, or auger refusal. The soil properties and characteristics were observed and recorded. The properties include texture, depth, slope, the presence of restrictive horizons, depth to seasonal high water table, coarse fragments, etc. The assessment was conducted in accordance with current soil science practices and technology and the North Carolina Division of Water Quality Stormwater Best Management Manual July, 2007. The locations of the borings are depicted on a site sketch provided by Stimmel Associates, P. A. 4811 Koger Boulevard ° Greensboro, hIC 27407 ^ T: 336-856-7,150 - F: 336-856-7160 � www.ecslimited.corn ECS Carolinas, LLP , ECS Florida. LLC • ECS Mid -Atlantic, LLC a ECS Southeast, LLC ^ ECS Texas, LLP .. 1 �. � ~ �� i _. ��i J y^ • .. � -v r M "Sx„!� � 44 w. F�Jaj �i�' •... �.w.. i.:. 'r�� Seasonal High water Table Deteinzinatioia Da»ie Kidnev Center Mocksville, North Carolina ECS Project 09-17676 August 28, 2009 Seasonal High Water Table Determination Bio-Retention Cell 1 Boring B-6 The surface layer is yellowish red of sandy clay loam to a depth of 7 inches deep. The structure appears to be weak fine granular. The subsurface layer is red clay to a depth of 26 inches. The structure appears to be moderate fine subangular blocky with friable, slightly sticky, plastic consistence, The subsurface layer is reddish yellow sandy clay loam to a depth of 3B- inches. The structure appears to be weak fine subangular blocky with friable, slightly sticky, slightly plastic consistence. Common fine flakes of mica were observed in this layer. The underlying material to a depth of 15 feet is multicolored, yellowish red, reddish yellow, and yellowish brown saprolite that has textures of sandy loam and loam. The saprolite was very friable with massive structure. Common fine flakes of mica were observed throughout this layer. Many fine grains of dark minerals were observed. Bio-Retention Cell 2 Boris B-4 The surface layer is yellowish red of sandy clay loam to a depth of 8 inches deep. The structure appears to be weak fine granular. The subsurface layer is red clay to a depth of 29inches. The structure appears to be moderate fine subangular blocky with friable, slightly sticky, plastic consistence. The subsurface layer is reddish yellow sandy clay loam to a depth of 40 inches. The structure appears to be weak fine subangular blocky with friable, slightly sticky, slightly plastic consistence. Common fine flakes of mica were observed in this layer, The underlying material to a depth of 20 feet is multicolored, yellowish red, reddish yellow, and yellowish brown saprolite that has textures of sandy loam and loam. The saprolite was very friable with massive structure. Common and many fine flakes of mica were observed. Many fine grains of dark minerals were observed. Conclusions Bio-Retention Cell 1 Boring B-6 The seasonal high water table was found to be greater than 15 feet. The elevation of the boring is 785.00,The elevation of the bottom of the media is 791.46. The seasonal high water table was found to be greater than two feet below the bottom of the media Bio-Retention Cell 2 Boring B-4 The seasonal high water table was found to be greater than 20 feet. The elevation of the boring is 790.00.The elevation of the bottom of the media is 794.96. The seasonal high water table was found to be greater than two feet below the bottom of the media Seasonal High Water Table Detemnination Davie kidnev Center Mocksville, North Carolina ECS Project 09-17676 August?8, 2009 CLOSING ECS is pleased to offer you our professional services and we look forward to assisting in any of your site analysis needs in the future. If you have any questions or require further assistance, please contact us at (336) 856-7150, Respectfully, ECS CAROL_}� SC�F�j, kr Q�,1 1►.. H/}ilk, %r �yfA a 0 Joseph A. ton ��:,� r" Senior Soil I 1C� "NOL7M 4Aq � - Russell A. Bendel, P_ E. Principal Engineer Patterson, Robert From: Homewood, Sue Sent: Friday, August 21, 2009 9:39 AM To: kbinkley@stimmelpa.com; Thomas, John T JR SAW; bjunker@trailerseast.com Cc: Patterson, Robert Subject: Davie Kidney Center Attachments: D00082109-001.pdf; WOC3705.pdf Please note that although this 401 permit has been issued, the pipe must not be installed until the stormwater plan is approved and a copy forwarded to us for our file. Please note my new email address Sue Homewood NC DENR Winston-Salem Regional Office Division of Water Quality 585 Waughtown Street Winston-Salem, NC 27107 Voice: (336) 771-4964 FAX: (336) 771-4630 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. i4CbENlR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary August 20, 2009 DWQH 09-0495 Davie County Mr. Willaim Junker 136 Triple J. Lane Mocksvillc, NC 27028 Re: Section 401 Water Quality Certification application Dear Mr. Junker: You have our approval, in accordance with the attached conditions, to place fill and permanently impact 290 linear feet of an unnamed tributary to Bear Creek to install a driveway crossing for the Davie Kidney Center located in Mocksville, NC in Davie County, as described in your application received by the Division on May 1, 2009, and additional information received on July 20, 2009 and August 17, 2009. After reviewing your modification application, we have determined that this fill is covered by General Water Quality Certification Numbers 3705, - which can be viewed on our web site at http://h2o.enr.statc-ne.us/ncwetlands/rd wetlands_ certifications.htm. This Certification allows you to use Nationwide Permit Number 39 when it is issued by the U.S. Army Corps of Engineers. In addition, you should secure any other applicable federal, state or local permits before you proceed with your project, including (but not limited to) those required by Sediment and Erosion Control (including trout buffer waivers as necessary), Non -Discharge, State Stormwater, and Water Supply Watershed regulations. Also, this approval will expire when the accompanying 404 permits expire unless otherwise specified in the General Certification. This approval is valid only for the purpose and design that you have described in your application. If you change your project, you must notify us in writing, and you may be required to send us a new application for a new certification. If the property is sold, the new owner must be given a copy of the Certification and approval letter and is thereby responsible for complying with all conditions. if total wetland fill for this project (now or in the future) exceeds one acre, or total fill to perennial streams equals or exceeds 150 linear feet, additional compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h). For this approval to be valid, you must follow the conditions listed in the attached certification, as well as the additional conditions listed below: 1. The following impacts are hereby approved as long as all other specific and general conditions of this Certification are met. No other impacts, including incidental impacts, are approved: Identifier Stream Impact length Site S1 Unnamed Tributary to Bear Creek 290 feet permanent im act Total 290 linear feet North Carolina Division of Water Quality, Winston-Salem Regional Office Location: 585 Waughtown St. Winston-Salem, North Carolina 27107 Phone: 336-771.5000 4 FAX: 336-771A6301 Customer Service: 1-877-623-6748 Internet: www.ncwaterquality.org An Equal Opportunity) Affirmative Action Employer NorthCarolina �aturall� Mr. William Junker DWQ# 09-0495 August 20; 2009 ` .. Page 2 of 4 2. 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 GC 3705. 3. The final, written stormwater management plan approval on letterhead from the reviewing agency and one copy of the approved stormwater management plan, including plan details, calculations and other supportinginformation, must be received by this Office before the impacts specified in this Certification occur. Also, before any permanent building is occupied at the subject site, the facilities (as approved by this Office) shall be constructed and operational, and the stormwater management plan (as approved by this Office) shall be implemented. The approved structural stormwater practices 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. 4. Upon finishing the project, the Applicant shall fill out and return the enclosed "Certificate of Completion" to. notify NCDWQ when all work included in the 401 Certification has been completed. This certificate should be returned to the Winston-Salem Regional Office of the NCDWQ at the address listed on the form. 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 which conforms to Chapter 15013 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 of the Division of Water Quality under Section 401 of the Clean Water Act. If you have any questions, please contact Sue Homewood in the DWQ Winston-Salem Regional Office at 336-771-4964 or at sue.homewood@ncmail.net. Sincerely, Coleen H. Sullins, Director Division of Water Quality cc: John Thomas, U. S. Army Corps of Engineers, Raleigh Regulatory Field Office (via email) Ken Binkley, Stimmel .Assoc. (via email) DWQ Winston-Salem Regional Office DWQ Wetlands/401 Water Quality Certification No. 3705 GENERAL CERTIFICATION FOR PROJECTS ELIGIBLE FOR U.S. ARMY CORPS OF ENGINEERS NATIONWIDE PERMIT NUMBERS_18 (MINOR DISCHARGES), 29 (RESIDENTIAL DEVELOPMENT). 89 (COMMERCIAL AND INSTITUTIONAL DEVELOPMENTS). 41 (RESHAPING EXISTING DRAINAGE DITCHES), 42 (RECREATIONAL FACILITIES). 44 {MINING ACTIVITIES), AND 46 (DISCHARGES IN DITCHES). AND RIPARIAN AREA PROTECTION RULES (BUFFER RULES) Water Quality Certification Number 3705 is issued in conformity with the requirements of Section 401, Public Laws 92-500 and 95-217 of the United States and subject to the North Carolina Division of Water Quality (DWQ) Regulations in 15A NCAC 2H, Section .0500 and 15A NCAC 2B .0200 for the discharge of fill material to waters and adjacent wetland areas or to wetland areas that are not a part of the surface tributary system to interstate waters or navigable waters of the United States () as described in 33 CFR 330 Appendix A (B) (18, 29, 39, 41, 42, 43, 44, and 46) of the Corps of Engineers regulations (i.e., Nationwide Permit No. 39) and for the Riparian Area Protection Rules (Buffer Rules) in 15A NCAC 213.0200. The State of North Carolina certifies that the specified category of activity will not violate applicable portions of Sections 301, 302, 303, 306 and 307 of the Public Laws 92-500 and 95-217 if conducted in accordance with the conditionshereinafter set forth. Activities meeting any one (1) of the following criteria require written approval from the Division of Water Quality (the "Division"): Stream and/or buffer impacts: a. Any impacts to perennial waters (as depicted on the most recent USGS 1:24000 topographic map or as otherwise determined by the local government,) and their associated riparian buffers in Water Supply (WS), High Quality Water (HQW), or Outstanding Resource Water (ORW) watersheds. Only water -dependent activities, public projects, and structures with diminimus increases in impervious surfaces will be allowed as outlined in those rules [15A NCAC 2B .0212 through .0215]. All other activities require a variance from the delegated local government and/or the NC Environmental Management Commission before the application for the 401 Water Quality Certification can be processed. b. Any impacts to streams and buffers in the Neuse, Tar -Pamlico, Randleman and Catawba River Basins (or any other basins with Riparian Area Protection Rules [Buffer Rules] in effect at the time of application [in accordance with 15A NCAC 213.0200)), unless the activities are listed as "EXEMPT" from these Rules- c. Any impacts to streams involving excavation or dredging. d. Total stream impacts equal to or greater than 150 linear feet of intermittent and/or perennial stream to be filled, culverted, rip rapped, or relocated, including temporary and/or permanent impacts. It. Impacts (temporary and/or permanent) to waters: a. Equal to or greater than one-third (113) of an acre East of Interstate 95 (1-95). b. Equal to or greater than one -tenth (1110) acre West of Interstate 95 (1-95). III. Wetland impacts (temporary and/or permanent): a. Equal to or greater than one-third (113) acre East of Interstate-95. b. Equal to or greater than one -tenth (1/10) acre West of Interstate-95. c. Any impacts to wetlands adjacent to waters designated as: ORW, SA, WS-1, WS-11, or Trout, or wetlands contiguous to waters designated as a North Carolina or National Wild and Scenic River. d. Any impacts to coastal wetlands [15A NCAC 7H .0205)], or Unique Wetlands (UWL) [15A NCAC 2H .0506]. Water Quality Certification No. 3705 Water Quality Certification No. 3705 IV. If the activity is associated with or in response to a Notice of Violation or an enforcement action initiated by the Division and/or the Division of Land Resources. In accordance with North Carolina General Statute Section 143-215.3D(e), written approval for a 401.Water Quality General Certification must include the appropriate fee. If a project also requires a CAMA Permit, then one payment to both agencies shall be submitted and will be the higher of the two fees. Activities that are below the thresholds, or otherwise do not meet the criteria listed above in this General Certification do not require written approval from the Division of Water Quality as long as they comply with the Conditions of Certification listed below, including the Stormwater Management Plan condition. If the project requires a Stormwater Management Plan, but is otherwise below the written approval thresholds, the applicant may provide a courtesy copy of the Pre -Construction Notification along with a copy of the Stormwater Management Plan (and approval letter from the appropriate locally delegated state program where applicable). If any of these Conditions cannot be met, then written approval from the Division is required. Conditions of Certification: 1. No Impacts Beyond those Authorized in the Written Approval or Beyond the Threshold of Use of this Certification 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 in the written approval from the Division, including incidental impacts. 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. 2. Standard Erosion and 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: a. 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. 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. c. Reclamation measures and implementation must comply with the reclamation in accordance with the requirements of the Sedimentation Pollution Control Act and the Mining Act of 1971. d. Sufficient materials required for stabilization and/or repair of erosion control measures and stormwater routing and treatment shall be on site at all times. e. If the project occurs in waters or watersheds classified as Primary Nursery Areas (PNAs), Trout (Tr), SA, WS-I, WS-ll, High Quality (HQW), or Outstanding Resource (ORW) waters, then the sediment and erosion control requirements contained within Design Standards in Sensitive Watersheds (.15A NCAC 04B .0124) supercede all other sediment and erosion control requirements. Water Quality Certification No. 3705 Water Quality Certification No. 3705 3. No Sediment and Erosion Control Measures in Wetlands or Waters Sediment and erosion control measures should 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, 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 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. 4. Construction Stormwater Permit NCG010000 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 (NCG010000) administered by the Division 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.us/su/Forms Documents.htm. 5. Construction Moratoriums and Coordination If activities must occur during periods of high biological activity (i.e. sea turtle or bird nesting), then biological monitoring may be required at the request of other state or federal agencies and coordinated with these activities. This condition can be waived through written concurrence on a case by case basis upon reasonable justification. All moratoriums on construction activities established by the NC Wildlife Resources Commission (WRC), US Fish and Wildlife Service (USFWS), NC Division of Marine Fisheries (DMF), or National Marine Fisheries Service (NMFS) to lessen impacts on trout, anadromous fish, Iarvallpost-larval fishes and crustaceans, or other aquatic species of concern shall be implemented. This condition can be waived through written concurrence on a case by case basis upon reasonable justification. Work within the twenty-five (25) designated trout counties or identified state or federal endangered or threatened species habitat shall be coordinated with the appropriate WRC, USFWS, NMFS, and/or DMF personnel. 6. 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 NC DOT Construction and Maintenance Activities Manual, such as sandbags, rock berms, cofferdams, and other diversion structures shall be used to minimize excavation in flowing water. Exceptions to this condition require submittal to, and approval by, the Division of Water Quality. Water Quality Certification No. 3705 Water Quality Certification No. 3705 7. Riparian Area Protection (Buffer) Rules Activities located in the protected 50-foot wide riparian areas (whether jurisdictional wetlands or not), within the Neuse, Tar -Pamlico, Catawba, or Randleman (or any other basin with buffer rules), shall be limited to "uses" identified within and constructed in accordance with 15A NCAC 213 .0233, .0259, .0250 and .0243, and shall be located, designed, constructed, and maintained to have minimal disturbance to protect water quality to the maximum extent practicable through the use of best management practices. All buffer rule requirements, including diffuse flow requirements, must be met. 8_ Water Supply Watershed Buffers The 30-foot wide vegetative buffer (low -density development) or the 100-foot wide vegetative buffer (high -density development) shall be maintained adjacent to all perennial waters except for allowances as provided in the Water Supply Watershed Protection Rules [15A NCAC 213 .0212 through .0215]. 9. 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 lifelfish kills. 10. Compensatory Mitigation In accordance with 15A NCAC 2H .0506 (h), compensatory mitigation may be required for losses of 150 linear feet or more of streams and/or one (1) acre or more of wetlands. For linear, public transportation projects, impacts equal to or exceeding 150 linear feet per stream shall require mitigation. Compensatory stream mitigation shall be required at a 1:1 ratio for all perennial and intermittent stream impacts in watersheds classified as ORW, HQW, Trout, WS-1 and WS-11, Suffer mitigation may be required for any project with Buffer Rules in effect at the time of application for buffer impacts resulting from activities classified as "Allowable with Mitigation" within the "Table of Uses" section of the Buffer Rules or require a variance under the Buffer Rules. A determination of buffer, wetland and stream mitigation requirements shall be made for any General Water Quality Certification for this Nationwide Permit. Design and monitoring protocols shall follow the US Army Corps of Engineers Wilmington District Stream Mitigation Guidelines (April 2003), or its subsequent updates. Compensatory mitigation plans shall be submitted for written Division approval as required in those protocols. Alternatively, the Division will accept payment into an in -lieu fee program or credit purchase from a mitigation bank. Finally, the mitigation plan must be implemented and/or constructed before any permanent building or structure on site is occupied. In the case of public road projects, the mitigation plan must be implemented before the road is opened to the public. Proof of payment to an in -lieu fee program or mitigation bank must be provided to the Division to satisfy this requirement. Water Quality Certification No. 3705 Water Quality Certification No. 3705 11. For all activities requiring re -alignment of streams, a stream relocation plan must be included for written Division approval. Relocated stream designs should include the same dimensions, patterns and profiles as the existing channel (or a stable reference reach if the existing channel is unstable), to the maximum extent practical. The new channel should be constructed in the dry and water shall not be turned into the new channel until the banks are stabilized. Vegetation used for bank stabilization shall be limited to native woody species, and should include establishment of a 30-foot wide wooded and an adjacent 20-foot wide vegetated buffer on both sides of the relocated channel to the maximum extent practical. A transitional phase incorporating appropriate erosion control matting materials and seedling establishment is allowable. Rip -rap, A -Jacks, concrete, gabions or other hard structures may be allowed if it is necessary to maintain the physical integrity of the stream; however, the applicant must provide written justification and any calculations used to determine the extent of rip -rap coverage. Please note that if the stream relocation is conducted as a stream restoration as defined in the US Army Corps of Engineers Wilmington District, April 2003 Stream Mitigation Guidelines (or its subsequent updates), the restored length can be used as compensatory mitigation for the impacts resulting from the relocation. 12. Stormwater Management Plan Requirements A. For applicants other than the North Carolina Department of Transportation, a Stormwater Management Plan in accordance with the version of Stormwater Management Plan (SMP) Requirements for Applicants other than the North Carolina Department of Transportation posted on the Division web site at the time of application shall be provided for any project that meets both of the following two criteria: i. Requires a 404 Permit or Isolated Wetlands Permit (regardless of whether written authorization is required by the Division), AND ii, Contains one or more drainage areas that are anticipated to have impervious surface cover of equal to or greater than 24 percent. When drainage areas are difficult to delineate or when a pocket of high density exists within a drainage area, the Division shall use best professional judgment to apply the SMP requirement as appropriate. B. For the North Carolina Department of Transportation, compliance with NCDOT's Individual NPDES permit NCS000250 shall serve to satisfy this condition. 13. Placement of Culverts and Other Structures in Waters and Wetlands Culverts required for this project shall be designed and installed in such a manner that the original stream profiles are not altered and allow for aquatic life movement during low flows. Existing stream dimensions (including the cross section dimensions, pattern, and longitudinal profile) must be maintained above and below locations of each culvert. Placement of culverts and other structures in waters and streams must be placed below the elevation of the streambed by one foot for all culverts with a diameter greater than 46 inches, and 20 percent of the culvert diameter for culverts having a diameter less than or equal to 48 inches, to allow low flow passage of water and aquatic life. Installation of culverts in wetlands must ensure continuity of water movement and be designed to adequately accommodate high water or flood conditions. Additionally, when roadways, causeways or other fill projects are constructed across FEMA-designated floodways or wetlands, openings such as culverts or bridges must be provided to maintain the natural hydrology of the system as well as prevent constriction of the floodway that may result in destabilization of streams or wetlands. Water Quality Certification No. 3705 Water Quality Certification No. 3705 If site -specific topographic constraints preclude the ability to bury the culverts as described above and/or the applicant can demonstrate that burying the culvert would result in destabilization of the channel and head -cutting upstream, the Division will consider alternative design proposals. Any riprap required for normal pipe burial and stabilization shall be buried such that the original stream elevation is restored and maintained. 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. 14. Additional site -specific conditions may be added to the written approval letter for projects proposed under this Water Quality Certification in order to ensure compliance with all applicable water quality and effluent standards. 15. If an environmental document is required under the National or State Environmental Policy Act (NEPA or SEPA), then this General Certification is not valid until a Finding of No Significant Impact (FONSI) or Record of Decision (ROD) is issued by the State Clearinghouse. 16. If this Water Quality Certification is used to access building sites, then all lots owned by the applicant must be buildable without additional impacts to streams or wetlands. The applicant is required to provide evidence that the lots are buildable without requiring additional impacts to wetlands, waters or buffers if required to do so in writing by the Division. For road construction purposes, this Certification shall only be utilized from natural high ground to natural high ground. 17. 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 4011Wetlands Unit web site at http:llh2o.enr.state,nc.us/ncwetiands. The text of the sample deed notification may be modified as appropriate to suit to a specific project. 18. When written authorization is required for use of this certification, upon completion of all permitted impacts included within the approval and any subsequent modifications, the applicant shall be required to return the certificate of completion attached to the approval. One copy of the certificate shall be sent to the DWQ Central Office in Raleigh at 1650 Mail Service Center, Raleigh, NC, 27699-1650. 19. This General Certification shall expire three (3) years from.the date of issuance of the written letter from the Division or on the same day as the expiration date of the corresponding Nationwide Permit The conditions in effect on the date of issuance of Certification for a specific project shall remain in effect for the life of the project, regardless of the expiration date of this Certification. If the construction process for approved activities will overlap the expiration and renewal date of the corresponding 404 Permit and the Corps allows for continued use of the 404 Permit, then the General Certification shall also remain in effect without requiring re -application and re -approval to use this Certification for the specific impacts already approved. Water Quality Certification No. 3705 Water Quality Certification No. 3705 20. 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, Non-compliance with or violation of the conditions herein set forth by a specific fill project may result in revocation of this General,Cetfication for the project and may also result in criminal and/or civil penalties. The Director of the North Carolina Division of Water Quality may require submission of a formal application for Individual Certification for any project in this category of activity, if.it is determined that the project is likely to have a significant adverse effect upon water quality including state or federally listed endangered or threatened aquatic species or degrade the waters so that existing uses of the wetland or downstream waters are precluded. Public hearings may be held for specific applications or group of applications prior to a Certification decision if deemed in the public's best interest by the Director of the North Carolina Division of Water Quality. Effective date: November 1, 2007 DIVISION OF WATER QUALITY By r ti Coleen H. Sullins Director History Note: Water Quality Certification Number 3705 replaces Water Quality Certification Numbers 3106 and 3108 issued on February 11, 1997, Water Quality Certification Number 3287 issued on June 1, 2000, Water Quality Certification Number 3362 issued March 18, 2002, Water Quality Certification Number 3402 issued March, 2003, and Water Quality Certification Number 3631 issued March 19, 2007. This Water Quality Certification is rescinded when the Corps of Engineers re -authorizes Nationwide Permits 18, 29, 39, 41, 42, 43 or 44 or when deemed appropriate by the Director of the Division of Water Quality. Water Quality Certification No. 3705 im NCNB North Carolina Department of Environment and Natura Beverly Eaves Perdue Governor Division of Water Quality Coleen H. Sullins Director October 26, 2009 Douglas L. Edgeton Wake Forest University Health Sciences Medical Center Boulevard Winson-Salem, NC 27157 Subject: Post -Construction Notification Project ID: Davie-2010-006 Project: Davie Kidney Center Davie County, North Carolina Dear Sir or Madam, Resources Dee Freeman RECEIVED W.c. Dent or ENR OCT 2 8 2009 Winston-Salem Regional office A review of the Financial Responsibility/Ownership (FRO) form required under the Sedimentation Pollution Control Act received on October 22, 2009 has determined that the Davie Kidney Center project may be subject to a State Stormwater Permit for Post -construction. Unless excluded under the provisions of Session Law 2006-246, Section 8, you must submit within 30 days an application for a Post -Construction Stormwater Permit to: North Carolina Department of Environment and Natural Resources Division of Water Quality Stormwater Permitting Unit Post -Construction Application 1617 Mail Service Center Raleigh, NC 27699-1617 The Post -construction permit is in addition to a North Carolina General Permit (NCGO10000) pen -nit received for construction activity from the Division of Water Quality. For more information regarding MSI Post -Construction and Phase It Session Law 2006-246 please visit: littp://h2o.enr.state.nc.us/su/NI'DES_Pliase_II_Stormwater Program.htin If you have any questions concerning this matter please feet free to call me at 919-807-6379 or e- mail me at Jennifer.Jones@ncdenr.gov. Sincerely, ennifer Jones cc: Winston-Salem Regional Office, Surface Water Protection Section Stormwater Permitting Unit Files Wetlands and Stormwater Branch One 1617 Mai! Service Center, Raleigh, North Carolina 27699-1617 NorthCarolina Location: 512 N. Salisbury 5t. Raleigh, North 9$Carolina 47604 Aahirally Phone: 9i07$3001 FAX: 919�07�4941 Custoer Service: 1.677.623�748 Internet: www.nt. vaterquaiity.org AD Egwa Opportunity 1 Affirmative Action Employer 601,14. Trade Street date: 8/31/2009 job #: 09-062 ,. Suite 200 Winston Salem, NC project: Davie Kidney Center 27101-2916 - - ---- Landscape Architecture Interstate Dr. - Civil Engineering P: 336,723.1067 Moeksville NC Stimmel Associates, PA Land Planning F: 336.723.1069 + JI letter ®fA ra ns m itta I f".. attn: Robert Patterson/ Stormwater Staff Engineer to: NC DENR- DWQ Wetlands and Stormwater Brancl Stormwater Permitting Unit 1617 Mail Service Center Raleigh, NC 27699-1617 (919) 807-6375 We are sending you the following items: Prints Calculations Reproducibies F-1 Information r6 Originals rl Specifications sent Via: C'• Attached C Under Separate Cover r U.S. Mail r7 By Hand r Over Night Service lJ For Pick -Up ITI Fax# # of pages total = r Base Drawings r Correspondence Change Order/Addendum FA DiskettelCD r' Email with Attachments r copies sheet dated description 2 8/5/2009 C-1.0(Site), C-4.2(SWM), C-6.0 (Exist), L-1.0 (Land) 2 supplemeni 8/28/2009 SHWT Letter confirmation remarks, comments, & details: Robert, Attached to this Transmittal is the Stormwater Resubmittal packet for the Davie Kidney Center on Interstate Dr. in Nlocksville , NC. Please Look at the conclusion section for specific information regarding the SHWT. If you have any questions or concerns please feel free to call. Thanks, Ken Binkley (336) 723-1067 Ext. 118 copies to: rue iFSEPO , 09 UA! by: _ Ken Binkley NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Governor Director August 12, 2009 Mr. Ken BinkIey Stimmel Associates, PA 601 N. Trade St., Suite 200 Winston-Salem, NC .27101 Subject: Request for Additional Information Stormwater Project No. SW4090801 Davie Kidney Center Davie County Dear Mr. Binkley: Dee Freeman Secretary The Division of Water Quality Central Office received a Stormwater Management -Permit Application for the subject project on August 7, 2009. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue 'the stormwater review: 1. Please show on the plans all wetlands on the site, or provide a note on the plans that states there are not any on the site. 2. A soils report must be submitted that provides the elevation of the seasonal high water table (SHWT). This needs to be provided based on soil boring within the. footprint of each of the proposed bioretention cells. 3. The only plans provided was C-4.2 (Stormwater Management Plan and Details). Please also submit two copies of the planting plan, site plan, and existing conditions_. A location map shall also be provided on one of the plan sheets. 4. The note for cell ##2 shows top of pond at 801.0. Based on the detail and the overflow outlet, it looks like this should be 800.5. Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to September 14, 2009, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. If you need additional time to submit the information, please mail or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. Wetlands and Stormwater Branch One 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 NOIrt�1CaC011tla Location: 512 N. Safisbury St. Raleigh, North Carolina 27604 Phone: 9IM07-63001 FAX: 919-807-64941 Customer Service:1-877-623.6748 NatitrallyInternet: www.nrwalerqualil .org An Equal Opportunity 4 Affirmative Action Employer Mr. Ken Binkley SW4090801 — Davie Kidney Center August 12, 2009 The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. Please reference the State assigned project number SW4090801 on all correspondence. All original'. documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (919) 807-6375. Sincerely, �} Robert D. Patterson, P.E. Environmental Engineer Stormwater Permitting Unit cc: Mr. William McDonald, Davie Kidney Center of Wake'Forest University, 1804 King Rd., Tifton, GA, 31793 Winston-Salem Regional Office DWQ Central Files Stormwater Permitting Unit Files Page 2 of 2 AYTMM IFJA a CDENR North Carolina Department of Environment and Natural Resources Beverly Eaves Perdue Governor William F. Junker 136 Triple J. Lane Mocksville, NC 27028 Dear Sir, Division of Water Quality Coleen H. Sullins Director August 11, 2009 'A.ta. Dee Freeman RECEIVED Secretary N.C. 6eo1. or ENR AUG 12 2009 1 Winaton•Sale,r Regional O fica Subject: Post -Construction Notification Project ID: Davie-8/1 1-1 Project: Davie Kidney Center of WFU, Mass Grading; Davie County, North Carolina A review of the Financial Responsibility/Ownership (FRO) form required under the Sedimentation Pollution Control Act received on August 3, 2009 has determined that the Davie Kidney Center of WFU, Mass Grading project may be subject to a State Stormwater Permit for Post - construction. Unless excluded under the provisions of Session Law 2006-246, Section 8, you must submit within 30 days an application for a Past -Construction Stormwater Permit to: North Carolina Department of Environment and Natural Resources Division of Water Quality Stormwater Permitting Unit Post -Construction Application 1617 Mail Service Center Raleigh, NC 27699-1617 . The Post -construction permit is in addition to a North Carolina General Permit (NCG010000) permit received for construction activity from the Division of Water Quality. For more information regarding MSI Post -Construction and Phase II Session Law 2006-246 please visit: lnttp://h2o.cnr.state.nc.us/su/NI'DES_Phase_II_Storinwater Progrann.htrrt If you have any questions concerning this matter please feel free to call me at 919-807-6368 or c-mail me at Brian.Lowtlier@ncdciir.gov. ncdenr.gov. Sincerely, .7 r Brian Lowther cc: C.Winston-Salem-Regional-Qffice, Surface Water Protection Section Stormwater Permitting Unit Files Wetlands and Stormwater Branch One 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 NorthCarol.i.rla Location: 512 N. Salisbury St. Raiegh, North Carotina 27604 r Phone: 9IM07.63001 FAX: 919-807-64941 Customer Service: 1-877-623-6748 Internet: www rimaterquality,org ;J An Equal opportunity 1 Affirmative Action Employer ` sapa601 N. Trade Street Suite 200 Winston Salem, NC 27141-2916 Landscape Architecture f Civil Engineering P: 336.723.1067 5timmel Associates, PA Land Planning F: 336.723.1069 date: 8/5/2009 job #: 09-062 project: Davie Kidney Center Interstate Dr. Mocksville, NC letter of transmittal attn: Robert Patterson/ Stormwater Staff Engineer to: NC DENR- DWO Wetlands and Stormwater Brancl Stormwater Permitting Unit 1617 Mail Service Center Raleigh, NC 27699-1617 (919) 807-6374 We are sending you the following items: sent via: c: Attached (- Under Separate Cover P/ U.S. Mail r By Hand r Over Night Service r For Pick -Up I— Fax# # of pages total = r Prints r Calculations r Base Drawings r Reproducibles r Information r Correspondence (— Originals r Specifications r Change Order/ Addendum r Diskette/CD r Email with Attachments r copies sheet dated description 2 8/5/2009 Stormwater Plans 2 App Stormwater Permit Application 1 supplement Bioretention Cell Calculations, O&M Agreements 1 supplement 8/5/2009 Stormwater Management Calculations 1 Check 8/5/2009 $505 Review Fee remarks, comments, & details: Robert, Attached to this Transmittal is the Stormwater Permit Application packet for the Davie Kidney Center on Interstate Dr. in Mocksville , NC. If you have any questions or concerns please feel free to call. Thanks, Ken Binkley (336) 723-1067 Ext. 118 copies to: r-lie by: Ken Binkley Application Completeness Review � First Submittal ❑ Re -submittal Date Received: 8/'% Date Development/Project Name: ]Lwia Receiving stream name 53rtojW. cvUK, classification: For post -construction requirements, a program will be deemed compliant for the areas where it is implementing any of the following programs: WS-I, WS-II, WS-III, WS-IV, HQW, ORW, Neuse River Basin NSW, Tar -Pamlico River Basin NSW, and the Randleman Lake Water Supply Watershed Nutrient Management Strategy. Projects that require a 401/404 within an NSW require 85% TSS, 30% TN acid 30% TP removal. T&E Species (Goose Creek, Waxhaw Creek or Six Mile Creek Water Sheds): Latitude and Longitude: r _"✓ Ju—risdic32*SS 2l)A/ 03sSC__ o Project Address: 1 "-t - -r cr K S v1 L_W5 Engineer name and firm: KAA� r1j&10ce-,EY , S"rf-'Ion Lc h5scr_., B? - ❑ Low Density (no curb and gutter) ❑ Low Density with curb and gutter outlets I!High Density ❑ Other �! ❑ 401/404 impacts to surface waters, wetlands, and buffers (add language to cover letter and/or addinfo letter) W BUA ItZ c' Check for $505.00 included Mr Original signature (not photocopy) on application M-- Legal signature (Corporation-VP/higher, Partnership -General Partner/higher, LLC-memberlmanager, Agent). Check spelling, capitalization, punctuation: http://www.secretary.state.nc.us/corporations/thepage.aspx If an agent signs the application, a signed letter of authorization from the applicant must be provided which includes the name, title, mailing address and phone number of the person signing the letter. ❑ For subdivided projects, a signed and notarized deed restriction statement e' Sealed, signed & dated calculations e Correct supplement and O&M provided for each BMP on site (check all that were provided & number of each) CY' Bioretention ❑ Dry Detention Basin ❑ Filter Strip ❑ Grass Swale ❑ Infiltration Basin ❑ Infiltration Trench ❑ Level Spreader ❑ Permeable Pavement ❑ Restored Riparian Buffer ❑ Rooftop Runoff Management ❑ Sand Filter ❑ Stormwater Wetland ❑ Wet Detention Basin ❑ Low Density ❑ Curb Outlet ❑ Off -Site ❑ NCDOT Linear Road" a"- Two sets of sealed, signed & dated layout & finish grading plans with appropriate details a. Narrative Description of stormwater management provided D)❑ Soils report provided Wetlands delineated or a note on the plans that'none exist on site and/or adjacent property QDetails for the roads, parking area, cul-de-sac radii, sidewalk widths, curb and gutter; Dimensions & slopes provided ffl,'� Drainage areas delineated ❑ Pervious and impervious reported for each ❑ Areas of high density IIY Inspection and maintenance agreements provided ❑ Application complete application Incomplete Returned: (Date) May 14, 2008 Revision SL 2006-246 Section 9 Post Construction Requirements.,for Non -Coastal Counties Low -density projects ❑ No more than two dwelling units per acre or 24% built -upon area; ❑ Vegetated conveyances to the maximum extent practicable; ❑ Built -upon areas at least 30 feet landward of perennial and intermittent surface waters; ❑ Deed restrictions, protective covenants, and/or other restrictive language/measures. . High density projects ❑ Control and treat runoff from the first one -inch of rain. ❑ Runoff volume drawdown time must be a minimum of 48 hours, but not more than 120 hours; ❑ Discharge the storage•volume at a rate equal to or less than the predevelopment discharge rate for the one-year, •247hour,storm. ❑ Achieve 85% average annual removal of total suspended solids. cr ❑ For BMPs that require a separation -from the seasonal high-water table'(SHWT), the'separation shall include at least 12 inches of naturally occurring soil above the SHWT. ❑ Stormwater management measures must comply with the General Engineering Design Criteria For All Projects requirements listed in 15A NCAC 2H .1008(c); ❑ All built -upon areas are at least 30 feet landward of perennial and intermittent surface waters; ❑ Deed restrictions, protective covenants, and/or other restrictive language/measures ❑ Provide a mechanism to require long-term operation and maintenance of Best Management Practices Post -Construction Runoff Controls for T&E Species Goose Creek, Six Mile Creek and Waxhaw Creek Watersheds Buffers ❑ 200' undisturbed buffers on perennial streams ❑ 100' undisturbed buffers on intermittent streams Low -density projects ❑ All built upon area shall be limited to 10 percent. ❑ Use of vegetated conveyances to the maximum extent practicable; ❑ Deed restrictions, protective covenants, and/or other restrictive language/measures High -density projects ❑ The stormwater control measures must control and treat the difference between the pre -development and post -development conditions for -the 1-year-24-hour storm. ❑ Runoff volume drawdown time must be a minimum of 48 hours, but not more than 120 hours; ❑ AJI structural stormwater treatment systems must be designed to achieve 85% average annual removal of total suspended solids; ❑ Stormwater management measures must comply with the General Engineering Design.Criteria For All Projects requirements listed in 15A NCAC 2H .1008(c) ❑ Deed restrictions, protective covenants, and/or other restrictive languagelmeasures. ❑ Provide a mechanism to require long-term operation and maintenance of Best Management Practices High Density Projects that require a 401/404 within an NSW ❑ 85% TSS ❑ 30% TN ❑ 30% TP , May 14, 2008 Revision