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HomeMy WebLinkAbout20061445 Ver 1_COMPLETE FILE_20060907 ?O? WA O T ?RpG r Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources o `ii? November 14, 2006 Mr. Charles Leffler North Carolina State University Campus Box 7201 Raleigh, NC 27695 Subject Property: NC State North Creek Stormwater Wetland North Creek [030402, 27-34-(4), C, NSW] Alan W. Klimek, P.E. Director Division of Water Quality DWQ Project # 06-1445 Wake County Approval of 401 Water Quality Certification and Authorization Certificate per the Neuse River Buffer Protection Rules (15A NCAC 2B .0233) with Additional Conditions Dear Mr. Leffler: You have our approval, in accordance with the attached conditions and those listed below, to place fill within or otherwise impact 37 linear feet of perennial stream, and 6,977 square feet (ft) of protected Zone 1 Neuse River basin riparian buffer and 4,798 square feet (ft) of protected Zone 2 Neuse River basin riparian buffer to construct the proposed stormwater wetland, as described within your application dated August 31, 2006, and received by the N.C. Division of Water Quality (DWQ) on September 7, 2006, with additional information received by the DWQ on October 13, 2006, October 25, 2006, and November 14, 2006. After reviewing your application, we have decided that the impacts are covered by General Water Quality Certification Number(s) 3495 (GC3495). The Certification(s) allows you to use Nationwide Permit(s) 13 when issued by the US Army Corps of Engineers (USACE). This letter shall also act as your approved Authorization Certificate for impacts to the protected riparian buffers per 15A NCAC 2B .0233. 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 or CAMA Permit. This approval 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 Certification and approval letter and is thereby responsible for complying with all conditions. 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 certification and any additional conditions listed below. The Additional Conditions of the Certification are: 1. 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: 401 Oversight / Express Review Permitting Unit 1650 Mail Service Center, Raleigh, North Carollna 27699-1650 2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604 Phone: 919-733-1786 / FAX 919-733-6893 / Internet: htta://h2o.enr.state.nc.us/ncwetlands N e Caro 'na Na&rally North Carolina State University Page 2 of 3 November 14, 2006 Amount Approve d Units Plan Location or Reference Stream - perennial 37 linear feet PCN Page 8 of 13 Buffers -Zone 1 6,977 (square ft. PCN Pages 11 and 12 of 13 Buffers - Zone 2 4,798 (square ft. PCN Pages 11 and 12 of 13 2. 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. 3. 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. 4. No Sediment & Erosion Control Measures within Wetlands or Waters Sediment and erosion control measures shall 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 six months of the date that the Division of Land Resources has released the project. 5. Deed Notification 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 prior to impacting any wetlands, waters and/or buffers approved for impact under this Certification Approval and Authorization Certificate. A sample deed notification can be downloaded from the 401/Wetlands Unit web site at http://h2o.enr.state.nc.us/ncwetlands. The text of the sample deed notification may be modified as appropriate to suit to this project. North Carolina State University Page 3 of 3 November 14, 2006 6. Diffuse Flow (No Review) All constructed stormwater conveyance outlets shall be directed and maintained as diffuse flow at non-erosive velocities through the protected stream buffers such that it will not re-concentrate before discharging into a stream as identified within 15A NCAC 2B .0233 (5). If this is not possible, it may be necessary to provide stormwater facilities that are considered to remove nitrogen. This may require additional approval from this Office. 7. 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 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 CAMA Permit. 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 Tar-Pamlico riparian buffer protection rule as described within 15A NCAC 2B .0259. If you have any questions, please telephone Ms. Cyndi Karoly or Mr. Ian McMillan at 919-733-1786.) n AWK/cbk/Um Enclosures: GC 3495 Certificate of Completion cc: Eric Kulz, DWQ Raleigh Regional Office DLR Raleigh Regional Office File Copy Central Files W. Klimek, P.E. Filename: 061445NCSUNorthCreekSWWetland(Wake)401 NBR Environmental Health & Public Safety Center *N-7termaros?e"" State uniNORTH CAROLINA STATE UNIVERSITY Campus Box 8007 Raleigh, North Carolina 27695 (919) 515-6859 TRANSMITTAL Date: November 13, 2006 i _ + 9r? 4 2006 DENR - WATER QUALITY WE1 LaNOR AND ST('•"BAMM BRANCH To: Ian McMillan From: Gwyn Ann Rowland 401 Oversight/Express Review Stormwater Program Manager RE: North Creek Stormwater Wetland DWQ Project #06-1445 ¦ ? ? We Transmit: Attached Under Separate Cover As Requested The Following: No. of Copies Description 3 three Operation and Maintenance Agreement 1 original, 2 copies) ? ? ¦ For Your: Approval Review & Comment Records Remarks: If you have questions or require additional information, please do not hesitate to contact me at 919-513-4030. C--,/ ) Received By: i Date p?pF W A 7-FgpG Michael F. Easley, Governor William G. Ross Jr., Secretary 7- North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality October 25, 2006 DWQ Project # 06-1445 Wake County CERTIFIED MAIL: RETURN RECEIPT REQUESTED Mr. Charles Leffler Campus Box 7201 Raleigh, NC 27695 Subject Property: NC State North Creek Stormwater Wetland E , r i ?0 s 1 :_l North Creek [030402, 27-34-(4), C, NSW] k- NOV I REQUEST FOR MORE INFORMATION VV A' R WETLAND,S A"!D ST?'d'i+1W.?.TeR 13WADi Dear Mr. Leffler: On September 7, 2006, the Division of Water Quality (DWQ) received your application dated August 31, 2006, to impact 37 linear feet of perennial stream, and 6,977 square feet (ft) of protected Zone 1 Neuse River basin riparian buffer and 4,798 square feet (ft) of protected Zone 2 Neuse River basin riparian buffer to construct the proposed stormwater wetland. On October 13, 2006, the DWQ received additional information from you, however, the DWQ has determined that your application remains incomplete and/or provided inaccurate information as discussed below. The DWQ will require additional information in order to process your application to impact protected wetlands and/or streams on the subject property. Therefore, unless we receive five copies of the additional information requested below, we will have to move toward denial of your application as required by 15A NCAC 21-1.0506 and will place this project on hold as incomplete until we receive this additional information. Please provide the following information so that we may continue to review your project. Additional Information Requested: Please provide a worksheet for the stormwater wetland one original and two copies of the signed and notarized Operations and Maintenance Agreement for the constructed wetland. Please contact the DWQ within three weeks of the date of this letter to verify that you have received this letter and that you remain interested in continuing to pursue permitting of your project and will be providing the DWQ the requested information at a later date. Please contact me in writing and Eric Kulz of the DWQ Raleigh Regional Office. If we do not hear from you within three weeks, we will assume that you no longer want to pursue this project and we will consider the project as withdrawn. 401 Oversight/Express Review Permits Unit 1650 Mail Service Center, Raleigh, North Carolina 27699-1650 2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604 Phone: 919-733-17861 FAX 919-733-68931 Internet: htto://h2o.enr.state.nc.us/ncvvetlands WMERV An Equal Opportunity/Affirmative Action Employer- 50% Recycled110% Post Consumer Paper Mr. Charles Leffler Page 2 of 2 October 25, 2006 This letter only addresses the application review and does not authorize any impacts to wetlands, waters or protected buffers. Please be aware that any impacts requested within your application are not authorized (at this time) by the DWQ. Please call Ms. Cyndi Karoly or Mr. Ian McMillan at 919-733-1786 if you have any questions regarding or would like to set up a meeting to discuss this matter. Sincerely, Cyndi Karoly, Supervisor 401 Oversight/Express Review Permitting Unit CBK/ijm cc: Eric Kulz, DWQ Raleigh Regional Office USACE Wilmington Regulatory Field Office File Copy Central Files Filename: 061445NCSUNorthCreekS W Wet] and(Wake)On_HOId2 WETLAND DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT The stormwater wetland system is defined as the wetland, pretreatment including forebays and the vegetated filter if one is provided. Maintenance activities shall be performed as follows: 9. After every significant runoff producing rainfall event and at least monthly: a. Inspect the stormwater wetland system for sediment accumulation, erosion, trash accumulation, vegetated cover, and general condition. b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within 2 to 5 days as designed. 2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative cover to maintain a maximum height of six inches, and remove trash as needed. 3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain proper functioning. 4. Remove accumulated sediment from the stormwater wetland system semi-annually or when depth is reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e. stockpiling near a wet [wetland] detention basin or,stream, etc.). The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. For stormwater wetlands: If the elevation of the marsh areas exceeds the permanent pool elevation, the sediment should be removed to design levels. This is performed by removing the upper 6 inches of soil then stockpiling it. Then the marsh area is excavated six inches below design elevations. Afterwards the stockpiled soil should be spread over the marsh surface. The soil should not be stockpiled for more than two weeks. When the sediment depth reads 0.6 . feet in the forebay [and micro-pool] above the bottom elevation (307.0 ft), the sediment shall be removed. BASIN DIAGRAM (fill in the blanks) Permanent Pool Elevation ?307.5 Sediment moval El. 307.6 0 /o Bottom E -- -- Sediment Removal Elevation --- 306.5--75% ------Seth --------------------------- * 5 -------vation:----307-.0 FOREBAY MAIN POND Page 1 of 2 5. Wetland planting densities in the marsh areas should be maintained by replanting bare areas as needed. Wetland plants should be encouraged to grow in the marsh areas. 6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain shall be minimized to the maximum extent practical. 7. All components of the stormwater wetland system shall be maintained in good working order. 8. Level spreaders or other structures that provide diffuse flow shall be maintained every six months. All accumulated sediment and debris shall be removed from the structure, and a level elevation shall be maintained across the entire flow spreading structure. Any down gradient erosion must be repaired and/or replanted as necessary. I acknowledge and agree by my signature below that I am responsible for the performance of the eight maintenance procedures listed above. The University agrees to notify DWQ of any problems with the system or prior to any changes to the system or responsible patty. 4 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. 1, ?1??'1 e h'I ?ee Aso n , a Notary Public for the State of ?o?-/???- County of t,yGlKe. , do hereby certify that personatiy appeared before me this 16316 day of . i?OVc. -hloer , --Loo 6 -, and acknowledge the due execution of the forgoing stormwater wetland maintenance requirements. Witness my hand and official seal, ?0 Ry •; r. •? • ?.. :fir -ffLAL My commission expires Id-, oP Page 2 of 2 WETLAND DETENTION 13ASIN OPERATION AND MAINTENANCE AGREEMENT The stormwater wetland system is defined as the wetland, pretreatment including forebays and the vegetated filter if one is provided. Maintenance activities shall be performed as follows: 1. After every significant runoff producing rainfall event and at least monthly: a. Inspect the stormwater wetland system for sediment accumulation, erosion, trash accumulation, vegetated cover, and general condition. b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within 2 to 5 days as designed. 2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative cover to maintain a maximum height of six Inches, and remove trash as needed. 3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain proper functioning. 4. Remove accumulated sediment from the stormwater wetland system semi-annually or when depth is reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e. stockpiling near a wet [wetland] detention basin or, stream, etc.). The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. For stormwater wetlands: If the elevation of the marsh areas exceeds the permanent pool elevation, the sediment should be removed to design levels. This is performed by removing the upper 6 inches of soil then stockpiling it. Then the marsh area is excavated six inches below design elevations. Afterwards the stockpiled soil should be spread over the marsh surface. The soil should not be stockpiled for more than two weeks. When the sediment depth reads 0.6_ _ feet in the forebay [and micro-pool] above the bottom elevation (307.0 ft), the sediment shall be removed. BASIN DIAGRAM (fill in the blanks) Permanent Pool Elevation 307. Sediment moval El. 307. Bottom E vation: 307.( Sediment-Removal-Elevation 30E 75% FOREBAY MAIN POND Page 1 of 2 5. Wetland planting densities In the marsh areas should be maintained by replanting bare areas as needed. Wetland plants should be encouraged to grow in the marsh areas. 6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain shall be minimized to the maximum extent practical. 7. All components of the stormwater wetland system shall be maintained in good working order. 8. Level spreaders or other structures that provide diffuse flow shall be maintained every six months. All accumulated sediment and debris shall be removed from the structure, and a level elevation shall be maintained across the entire flow spreading structure. Any down gradient erosion must be repaired and/or replanted as necessary. I acknowledge and agree by my signature below that I am responsible for the performance of the eight maintenance procedures listed above. The University agrees to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. 4 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, mile m •evso , a Notary Public for the State of County of 06LX2 , , do hereby certify that r (L ?2? Q l? personally appeared before me this day of ?!?o ye-p-hkc?- a-0 and acknowledge the due execution of the forgoing stormwater wetland maintenance requirements. Witness my hand and official seal, *OTAR), PUBLAG :v -5EAL My commission expires At'rVc--x?v /a? aooP Page 2 of 2 ?0 W A r4 9© Michael F. Easley, Governor \0 G William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources ? y 0 .? Alan W. Klimek, P.E. Director Division of Water Quality October 25, 2006 DWQ Project # 06-1445 Wake County CERTIFIED MAIL: RETURN RECEIPT REQUESTED Mr. Charles Leffler Campus Box 7201 Raleigh, NC 27695 Subject Property: NC State North Creek Stormwater Wetland North Creek [030402, 27-34-(4), C, NSW] REQUEST FOR MORE INFORMATION Dear Mr. Leffler: On September 7, 2006, the Division of Water Quality (DWQ) received your application dated August 31, 2006, to impact 37 linear feet of perennial stream, and 6,977 square feet (ft) of protected Zone 1 Neuse River basin riparian buffer and 4,798 square feet (ft) of protected Zone 2 Neuse River basin riparian buffer to construct the proposed stormwater wetland. On October 13, 2006, the DWQ received additional information from you, however, the DWQ has determined that your application remains incomplete and/or provided inaccurate information as discussed below. The DWQ will require additional information in order to process your application to impact protected wetlands and/or streams on the subject property. Therefore, unless we receive five copies of the additional information requested below, we will have to move toward denial of your application as required by 15A NCAC 2H .0506 and will place this project on hold as incomplete until we receive this additional information. Please provide the following information so that we may continue to review your project. Additional Information Requested: 1. Please provide a worksheet for the stormwater wetland one original and two copies of the signed and notarized Operations and Maintenance Agreement for the constructed wetland. Please contact the DWQ within three weeks of the date of this letter to verify that you have received this letter and that you remain interested in continuing to pursue permitting of your project and will be providing the DWQ the requested information at a later date. Please contact me in writing and Eric Kulz of the DWQ Raleigh Regional Office. If we do not hear from you within three weeks, we will assume that you no longer want to pursue this project and we will consider the project as withdrawn. 401 Overslght/Express Review Permits Unit 1650 Mail Service Center, Raleigh, North Carolina 27699-1650 2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604 Phone: 919.733-1786 / FAX 919-733-68931 Internet: htto://h2o.enr.state.nc.us/ncwetlands -A An Equal Opportunity/Affirmative Action Employer - 50% Recycledl10% Post Consumer Paper Mr. Charles Leffler Page 2 of 2 October 25, 2006 This letter only addresses the application review and does not authorize any impacts to wetlands, waters or protected buffers. Please be aware that any impacts requested within your application are not authorized (at this time) by the DWQ. Please call Ms. Cyndi Karoly or Mr. Ian McMillan at 919-733-1786 if you have any questions regarding or would like to set up a meeting to discuss this matter. Cyndi Karoly, Supervisor 401 Oversight/Express Review Permitting Unit CBK/ijm cc: Eric Kulz, DWQ Raleigh Regional Office USACE Wilmington Regulatory Field Office File Copy Central Files Filename: 061445NCSUNorthCreekS W Wetland(Wake)On_Hold2 DWQ # 06-1445 NC State North Creek Stormwater Wetland Subject: DWQ # 06-1445 NC State North Creek Stormwater Wetland From: Laurie Dennison <laurie.j.dennison@ncmail.net> Date: Thu, 26 Oct 2006 08:02:22 -0400 To: gwyn_rowland@ncsu.edu BCC: Laurie Dennison <laurie.j.dennison@ncmail.net> Please see attached the Division of Water Quality's request for more information related to your recent application. Please note that this message is being forwarded to you electronically so that you may expedite preparation of your response. Please do not send your response as a reply to this e-mail or via fax. The hard copy is being sent via US Mail. All response correspondence is to be mailed via hard copy to the 401 Oversight and Express Permits Unit, 2321 Crabtree Blvd., Raleigh, NC, 27604 unless otherwise noted. 061445NCSUNorthCreekSWWetland(Wake)On_Hold2.doc Content-Type: application/msword Content-Encoding: base64 1 of 1 10/26/2006 8:11 AM r North Carolina State University is a land- Grant university and a constituent institution Of The University of North Carolina .5%ate 'r An Equal Opporunity/s/ .? http:/lwww2.ncst.edu/ehehs/ 0 eater October 10, 2006 Ms, Laurie Dennison NC Department of Environment & Natural Resources 401 Oversight/Express Review Permitting Unit 1650 Mail Service Center Raleigh, North Carolina 27699-1650 Reference: Karoly, Cyndi. Request for Additional Information Letter Dated October 3, 2006 Subject: NC State North Creek Stormwater Wetland DWQ Project # 06-1445 Ms. Dennison: Office of Finance and Business Business Division Campus Box 8007 Raleigh, North Carolina 27695-8007 Director 919.515.4238 Environmental Affairs 919.515.6859 Industrial Hygiene 919.515.6860 Health and Safety 919.515.6858 Radiation Protection 919.515.2894 (Fax) 919.515.6307 I received a letter from your office on October 9, 2006 requesting the following additional information. Please indicate all buffer impacts on the site plan. 2. Please indicate the location of the protected buffers as overlays on the site plan, clearly identifying Zone 1 and Zone 2. 3. Please locate all isolated or non-isolated wetlands, streams and other waters of the State as overlays on the site plan. Attached are updated site plans that include the information requested above. If you require additional information or have any questions, please do not hesitate to contact me at 515-4030. Sincerely, ay n 4An Rowland Stormwater Program Manager .A attachment(s) 1 Buffer Zone 1 (Protected) Stream Impact/Improvement Area 1 '1'1'1'1'1'1 I I •I • I'111'I'lll'I'I'I'I'I I IIIIIIIIIiI ' 11111111111 I 1111111111111 1 1 1 1 1 1 1 1 1 1 1 1 1 ?? •. North Creek 11111111111111 111111111111111 .• 1111111111111111111i111111111 Top of Bank Ililllllllllllll .. 1111111111111111• ?. 11111111111111111 . 11111111111111111 11111111111111111 .. IIIIIIIIIIIIIIIiI Illilllil I? 111111• 11111 ?? ,? I , Ir 1111 I 2?' 11'1'111'11111 I r1Ce I111'I'Illflll'11 I f ??? '? r •'? •? ht . 1 1 1 1 1 1 1 1 ' I ? J''??/??y? 1. \0? . 1111111111111111 ?i,?, 1 ` 1111111111111111 ?'?j r 1 I 1111111 C '7pobilit Y prive I ? . 111 11i1i111 1• ?.. 11?1?1?1 11?1?1 :111 Ilill II 1 a " 0 Buffer Zone 2 (Project enhancement p? r~ and impacts) ?- Edge of Project Buffer Zone 2 (Project enhancement and impacts) Buffer/Stream Zone Area Impacted Buffer Zone 1 6,977 s q. ft. Buffer Zone 2 11,775 s q. ft. Stream Impact 1 0.006 acres Stream Impact 0 acres Note: Project impacts to Zone 1 are primary related to stabilization of the streambank area. Currently, Zone 1 consists of a badly eroding gully from a stormwater outfall and a degrading stream bank. Due to space constraints of the project, some temporary impacts are unavoidable. All streambank impacts will result in a significant improvement to bank stability, and buffer impact areas will be densely vegetated. 3 , ? ?QQ6 CyP?R ASR nE1???SSC we. 0 Cd m? ? 0 ao 511 Z Buffer Zone 1 (Project enhancement and impacts) Buffer Zone 1 (Protected) Le9ww Buffer Zone 1 Protected Buffer Zane 1 Impacted Buffer Zane 2 Impacted 0 Stream Impact/Improvanwa Area Protected Perennial Stream Stream Impact/ Improvement Area 2 a?1m 03 0 T w WT. Ka JUM North Carolina State University is a land- Office of Finance and Business Grant university and a constituent institution Business Division Of The University of North Carolina state .. 11?5? No? ?a?er Ma?aOec`` September 20, 2006 SE? `? 5 ZUUa DENR - wXl'ER DUALITY Ms. Laurie Dennison NC Department of Environment & Natural Resources 401 OversighVExpress Review Permitting Unit 1650 Mail Service Center Raleigh, North Carolina 27699-1650 Reference: Karoly, Cyndi. Request for Additional Information Letter Dated September 7, 2006 Subject NC State North Creek Stormwater Wetland DWQ Project # 06-1445 Ms. Dennison: Campus Box 8007 Raleigh, North Carolina 27695-8007 Director 919.515.4238 Environmental Affairs 919.515.6859 Industrial Hygiene 919.515.6860 Health and Safety 919.515.6858 Radiation Protection 919.515.2894 (Fax) 919.515.6307 I received a letter from your office via e-mail on September 13, 2006. Below and attached is the additional information requested. Section I. Processing Please state which Permit (Nationwide, Regional, or General) number you intend to use. I have contacted Thomas Brown with the US Army Corps of Engineers. He has indicated that a Nationwide Permit #13 would be appropriate for the subject project. 2. DWQ requires the name of the individual shown as "Owner/Applicant" to set up the project. I have spoken with Ian McMillan and he suggested the following information in addition to Mr. Charles D. Leffler, Vice Chancellor of Finance and Business. North Carolina State University Office of Finance and Business Holladay Hall B, Box 7201 Raleigh, North Carolina 27695 3. Applicant/Agent's Signature page missing. Please see attached page with Mr. Leffler's signature and date signed. Laurie Dennison Page 2 September 20, 2006 4. Water Body information not stated. Section III Project Information, Item 7. Please see attached page (6 of 13) from the permit application previously submitted. 5. Incorrect and/or missing wetland, intermittent-perennial stream and/or buffer impacts. Please see attached pages (8 of 13), (11 of 13) and (12 of 13) from the permit application previously submitted. 6. Lack of permitting fee. It is my understanding that the payment has been made by electronic transfer. The invoice number is Neuse CU:03020201with a sequence number of 90426. If you have any questions regarding the electronic transfer, please contact Bonnie Kurth at 515-8239. If you require additional information or have any questions, please do not hesitate to contact me at 513-4030. Thank you for your time. Sincerely, G n Ann Rowiand Stormwater Program Manaqer attachment(s) XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). Applicant/Agent's Signature (Agent's signature is valid only, if an authorization letter from the applicant is provided.) Mr. Charles A Leffler, Vice Chancellor for Finance and Business A-(3cI©6 Date Pan1ofI III. Project Information . Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: North Creek Constructed Stormwater Wetland with Vegetated Waterway System & Stream Enhancement (stream reach between Varsity Drive to Research Drive) 2. T.I.P. Project Number or State Project Number (NCDOT Only): 3. Property Identification Number (Tax PIN): 079352262 4. Location County: Wake Nearest Town: Raleigh Subdivision name (include phase/lot number): N/A Directions to site (include road numbers/names, landmarks, etc.): From downtown Raleigh, take Western Blvd west and make a left on Avent Ferry Rd. Turn left onto Varsity Drive (entrance to Centennial Campus) and a right onto Capability Drive. Project site is on immediate left at bottom of road bank. 5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 35146' 28" ON 78° 40' 46" °W 6. Property size (acres): Project site is less than 1 acre 7. Name of nearest receiving body of water: North Creek tributary to Lake Raleigh 8. River Basin: Neuse (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: See attached Page 6of13 i permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and. describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. 1. Provide a written description of the proposed impacts: . See attached 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, senarately list impacts due to both structure and flooding. Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within 100-year Floodplain es/no Distance to Nearest Stream (linear feet) Area of Impact (acres) Total Wetland Impact (acres) 0 3. List the total acreage (estimated) of all existing wetlands on the property: none 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. To calculate acreage. multinlv length X width. then divide by 43,560. Stream Impact Number indicate on ma Stream Name Type of Impact Perennial or Intermittent? Average Stream Width Before Impact Impact Length linear feet) Area of Impact acres 1 North Creek Stream stabilization Perennial 11 25 .006 2 North Creek Stream stabilization Perennial 14 12 .004 Total Stream Impact (by length and acreage) 37 .010 Page 8 of 13 that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): N/A Amount of buffer mitigation requested (square feet): N/A Amount of Riparian wetland mitigation requested (acres): N/A Amount of Non-riparian wetland mitigation requested (acres): N/A Amount of Coastal wetland mitigation requested (acres): N/A IX. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes N No ? 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No N 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? Yes N No ? 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. Zone* scare act feet) Multiplier Required 1 6,977 3 (2 for Catawba) N/A Page 11 of 13 1 2 1 . 4,798 1 1.5 N/A Total I 11,775 1 1 * Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e:, Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. No impervious acreage will be added to the site during this project XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules? Yes ? No Is this an after-the-fact permit application? Yes ? No ? XIV. Cumulative Impacts (required by DWQ) Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes ? No ? . If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at htt,i)://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description- XV. Other Circumstances (Optional): Page 12 of 13 North Carolina State University is a land-grant NCSU Water Quality Group university and a constituent institution of the Department of Biological and Agricultural Engineering University of North Carolina College of Agricultural and Life Sciences Campus Box 7637 ?D Raleigh, NC 27695 919.515.8240 (phone) 919.515.7448 (fax) Re: North Creek Stormwater Wetland and Stream Enhancement To whom it may concern, NC State University Water Quality Group is proposing the construction of a stormwater wetland on NCSU Centennial Campus. The wetland is a badly needed retrofit to an existing storm drain system. The drain outlets are currently causing excessive erosion and destabilizing stream banks. The retrofit will route waters through a stable channel into a stormwater wetland for treatment. Due to the urban constraints of the area, impacts are proposed to the riparian buffer and streambanks in the vicinity of the wetland. A full set of plans detailing these impacts and further explaining the project is included with this package. The total disturbed area for the project will be less than 1 acre. In addition to the wetland, the associated stream reach is proposed for enhancement. The enhancement will include repair and stabilization of streambanks in the vicinity of the wetland, and a variety of activities along the project reach. The primary proposed enhancement activities will include invasive species removal and native species introduction and management. We propose to utilize some bank stabilization measures as necessary, which will include minor grading, protection with erosion control fabric, and revegetation. The project is being funded by the USDA and the NCDENR 319 program. We believe that the fully implemented project will be an example of how stormwater practices, and a properly managed urban riparian buffer zone can improve water quality and aesthetics in a constrained urban setting. A graduate student research project is underway for the site, which should provide information on the benefits of the project. Please accept our proposal and permit application package for the site. The permit is supported by and submitted through our NCSU Stormwater Program. Please feel free to contact me with any questions you may have. My phone number is given above and my email is jean_spooner@ncsu.edu River Basin: Neuse CU: 03020201 14-digit HU: 03020201090010 County: Wake Municipality: Raleigh Receiving Water: Lake Raleigh, Thank you, Walnut Creek; 03-04-02 Jean Spooner, PhD Group Leader, Extension Specialist o ? ?pp6 EP "? ?OS PN? S?pi? Yid Employment and program opportunities are offered to all people regardless of race, color, national origin, gender, age or disability. North Carolina State University, North Carolina A&T State University, U.S. Department of Agriculture, and local governments cooperating. V, ?p06 SE-Q ,?P?ERMwPt?e?N wE ?C? WATF?p co r_- Pre-Construction Notification (PCN) Application Form For Section 404 and/or Section 10 Nationwide, Regional and General Permits, Section 401 General Water Quality Certifications, and Riparian Buffer and Watershed Buffer Rules This form is to be used for projects qualifying for any of the U.S. Army Corps of Engineers' (USACE) Nationwide, Regional or General Permits as required by Section 404 of the Clean Water Act and/or Section 10 of the Rivers and Harbors Act, and for the North Carolina Division of Water Quality's (DWQ) associated General 401 Water Quality Certifications. This form is also to be used for any project requiring approval under any Riparian Buffer Rules implemented by the N.C. Division of Water Quality. This form should not be used if you are requesting an Individual 404 Permit or Individual 401 Water Quality Certification. The USACE Individual Permit application form is available online at www.saw.usace.army.mil/wetlands/Permits.html. The USACE is the lead regulatory agency. To review the requirements for the use of Nationwide, Regional or General permits, and to determine which permit applies to your project, please go to the USACE website at www.saw.usace.army.mil/wetlands/index.html, or contact one of the field offices listed on page 3 of this application. The website also lists the responsible project manager for each county in North Carolina and provides additional information regarding the identification and regulation of wetlands and waters of the U.S. The DWQ issues a corresponding Certification (General or Individual), and cannot tell the applicant which 401 Certification will apply until the 404 Permit type has been determined by the USACE. Applicants are encouraged to visit DWQ's 401 /Wetlands Unit website at http://h2o.enr.state.nc.us/ncwetlands to read about current requirements for the 401 Water Quality Certification Program and to determine whether or not Riparian Buffer Rules are applicable. The applicant is also advised to read the full text of the General Certification (GC) matching the specific 404 Permit requested. In some cases, written approval for General Certifications is not required, provided that the applicant adheres to all conditions of the GC. Applicants lacking access to the internet should contact DWQ's Central Office in Raleigh at (919) 733-1786. Trout Waters Coordination - Special coordination with the North Carolina Wildlife Resources Commission (NCWRC) is required for projects occurring in any of North Carolina's twenty-five counties that contain trout waters. In such cases, the applicant should contact the appropriate NCWRC regional coordinator (listed by county on page 4 of this application) prior to submittal of the application. Page 1 of 13 Coastal Area Management Act (CAMA) Coordination - If the project occurs in any of North Carolina's twenty coastal counties (listed on page 4) the applicant should contact the North Carolina Division of Coastal Management (DCM). DCM will determine whether or not the project is within a designated Area of Environmental Concern, in which case DCM will act as the lead permitting agency. In such cases, DCM will require a CAMA Permit and will coordinate the 404/401 Permits. The applicant may also choose to coordinate with the United States Fish and Wildlife Service to ensure that the proposed project will have no impact upon any endangered or threatened species or critical habitat as regulated by the Endangered Species Act, and the State Historic Preservation Office, North Carolina Department of Cultural Resources to ensure that the proposed project will have no impact upon any properties listed or eligible for listing on the National Register of Historic Places. Compliance with these regulations is required to be eligible for any Department of the Army permit. The addresses for both agencies are listed on page 3 of this application. USACE Permits - Submit one copy of this form, along with supporting narratives, maps, data forms, photos, etc. to the applicable USACE Regulatory Field Office. Upon receipt of an application, the USACE will determine if the application is complete as soon as possible, not to exceed 30 days. This PCN form is designed for the convenience of the applicant to address information needs for all USACE Nationwide, Regional or General permits, as well as information required for State authorizations, certifications, and coordination. Fully providing the information requested on this form will result in a complete application for any of the USACE Nationwide, Regional or General permits. To review the minimum amount of information that must be provided for a complete PCN for each USACE Nationwide permit, see Condition 13, 67 Fed. Reg. 2090 (Jan. 15, 2002), available at http://www.usace.army.mil/inet/functions/cw/cecwo/reg/2002nms.pdf. Processing times vary by permit and begin once the application has been determined to be complete. Please contact the appropriate regulatory field office for specific answers to permit processing periods. 401 Water Quality Certification or Buffer Rules - All information is required unless otherwise stated as optional. Incomplete applications will be returned. Submit seven collated copies of all USACE Permit materials to the Division of Water Quality, 401/Wetlands Unit, 1650 Mail Service Center, Raleigh, NC, 27699-1650. If written approval is required or specifically requested for a 401 Certification, then a non-refundable application fee is required. In brief, if project impacts include less than one acre of cumulative wetland/water impacts and less than 150 feet cumulative impacts to streams, then a fee of $200 is required. If either of these thresholds is exceeded, then a fee of $475 is required. A check made out to the North Carolina Division of Water Quality, with the specific name of the project or applicant identified, should be stapled to the front of the application package. For more information, see the DWQ website at http://h2o.ehnr.state.nc.us/ncwetlands/fees.html. The fee must be attached with the application unless the applicant is a federal agency in which case the check may be issued from a separate office. In such cases, the project must be identifiable on the U.S. Treasury check so that it can be credited to the appropriate project. If written approval is sought solely for Buffer Rules, the application fee does not apply, and the applicant should clearly state (in a cover letter) that only Buffer Rule approval is sought in writing. Wetlands or waters of the U.S. may not be impacted prior to issuance or waiver of a Section 401 Water Quality Certification. Upon receipt of a complete application for a 401 Certification, the Division of Water Quality has 60 days to prepare a written response to the applicant. . This may include a 401 Certification, an on-hold letter pending receipt of additional requested information, or denial. Page 2 of 13 US Army Corps Of Engineers Field Offices and County Coverage Asheville Regulatory Field Office Alexander Caldwell Haywood McDowell US Army Corps of Engineers Alleghany Catawba Henderson Mecklenburg 151 Patton Avenue Ashe Cherokee Iredell Mitchell Room 208 Avery Clay Jackson Polk Asheville, NC 28801-5006 Buncombe Cleveland Lincoln Rowan Telephone: (828) 271-7980 Burke Gaston Macon Rutherford Fax: (828) 281-8120 Cabarrus Graham Madison Stanley Raleigh Regulatory Field Office Alamance Franklin Nash Surry US Army Corps Of Engineers Caswell Forsyth Northampton Vance 6508 Falls of the Neuse Road Chatham Granville Orange Wake Suite 120 Davidson Guilford Person Warren Raleigh, NC 27615 Davie Halifax Randolph Wilkes Telephone: (919) 876-8441 Durham Johnston Rockingham Wilson Fax: (919) 876-5823 Edgecombe Lee Stokes Yadkin Washington Regulatory Field Office Beaufort Currituck Jones US Army Corps Of Engineers Bertie Dare Lenoir Post Office Box 1000 Camden Gates Martin Washington, NC 27889-1000 Carteret* Green Pamlico Telephone: (252) 975-1616 Chowan Hertford Pasquotank Fax: (252) 975-1399 Craven Hyde Perquimans Wilmington Regulatory Field Office Anson Duplin Onslow US Army Corps Of Engineers Bladen Harnett Pender Post Office Box 1890 Brunswick Hoke Richmond Wilmington, NC 28402-1890 Carteret Montgomery Robeson Telephone: (910) 251-4511 Columbus Moore Sampson Fax: (910) 251-4025 Cumberland New Hanover Scotland North Carolina State Agencies Division of Water Quality Division of Water Quality 401 Wetlands Unit Ecosystem Enhancement Program 1650 Mail Service Center 1652 Mail Service Center Raleigh, NC 27699-1650 Raleigh, NC 27699-1652 Telephone: (919) 733-1786 Telephone: (919) 715-0476 Fax: (919) 733-6893 Fax: (919) 715-2219 Pitt Tyrrell Washington Wayne Swain Transylvania Union Watauga Yancey *Croatan National Forest Only State Historic Preservation Office Department Of Cultural Resources 4617 Mail Service Center Raleigh, NC 27699-4617 Telephone: (919) 733-4763 Fax: (919) 715-2671 US Fish and Wildlife Service / National Marine Fisheries Service US Fish and Wildlife Service US Fish and Wildlife Service National Marine Fisheries Service Raleigh Field Office Asheville Field Office Habitat Conservation Division Post Office Box 33726 160 Zillicoa Street Pivers Island Raleigh, NC 27636-3726 Asheville, NC 28801 Beaufort, NC 28516 Telephone: (919) 856-4520 Telephone: (828) 258-3939 Telephone: (252) 728-5090 Page 3 of 13 CAMA and NC Coastal Counties Division of Coastal Management Beaufort Chowan Hertford Pasquotank 1638 Mail Service Center Bertie Craven Hyde Pender Raleigh, NC 27699-1638 Brunswick Currituck New Hanover Perquimans Telephone: (919) 733-2293 Camden Dare Onslow Tyrrell Fax: (919) 733-1495 Carteret Gates Pamlico Washington NCWRC and NC Trout Counties Western Piedmont Region Coordinator Alleghany Caldwell Watauga 3855 Idlewild Road Ashe Mitchell Wilkes Kernersville, NC 27284-9180 Avery Stokes Telephone: (336) 769-9453 Burke Surry Mountain Region Coordinator Buncombe Henderson Polk 20830 Great Smoky Mtn. Expressway Cherokee Jackson Rutherford Waynesville, NC 28786 Clay Macon Swain Telephone: (828) 452-2546 Graham Madison Transylvania Fax: (828) 452-7772 Haywood McDowell Yancey APPLICATION FORM BEGINS ON PAGE 5. PLEASE DO NOT SUBMIT PAGES I - 4. Page 4 of 13 Office Use Only: Form Version March 05 USACE Action ID No. DWQ No. 1 ?'A S (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) 1. Processing II. Applicant Information S E P 7 Z00b 1. Owner/Applicant Information UENR - WATER UWALITY Name: Charles Leffler WETLANDS AND STORMWATER BRANCH Mailing Address: Campus Box 7201 Raleigh NC 27695 1. Check all of the approval(s) requested for this project: ? Section 404 Permit ® Riparian or Watershed Buffer Rules F] Section 10 Permit F-1 Isolated Wetland Permit from DWQ ® 401 Water Quality Certification F-1 Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ? 4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII, and check here: F-1 5. If your project is located in any of North Carolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal M a e Area of Environmental Concern (see the top of page 2 for further de I,, ?? D Telephone Number: 919-515-2155 Fax Number: 919-515-5121 E-mail Address: charles_leffler e ncsu.edu 2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: Company Affiliation: Mailing Address: Telephone Number: E-mail Address: Fax Number: Page 5of13 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: North Creek Constructed Stormwater Wetland with Vegetated Waterway System & Stream Enhancement (stream reach between Varsity Drive to Research Drive) 2. T.I.P. Project Number or State Project Number (NCDOT Only): 3. Property Identification Number (Tax PIN): 079352262 4. Location County: Wake Nearest Town: Raleigh Subdivision name (include phase/lot number): N/A Directions to site (include road numbers/names, landmarks, etc.): From downtown Raleigh, take Western Blvd west and make a left on Avent Ferry Rd. Turn left onto Varsity Drive (entrance to Centennial Campus and a right onto Capability Drive. Project site is on immediate left at bottom of road bank. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 35° 46' 28" ON 78° 40' 46" °W 6. Property size (acres): Project site is less than 1 acre Name of nearest receiving body of water: North Creek tributary to Lake Raleigh 8. River Basin: Neuse (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: See attached Page 6 of 13 10. Describe the overall project in detail, including the type of equipment to be used: See attached 11. Explain the purpose of the proposed work: See attached IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. NCSU has several prior permits along this reach. None are directly related to this project. Varsity Drive Crossing of North Creek Action ID #1999821276, NWP 26 NCSU Infrastructure Phase V, Stormwater Management Pond #2 and Greenway Trail DWQ Project # 02-1252 North Creek Constructed Stormwater Wetland DWQ Project # 04-0233 Action ID #200420780 V. Future Project Plans Are any future permit requests anticipated for this project? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application. See attached VI. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. Each impact must be listed separately in the tables below (e.g., culvert installation should be listed separately from riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts, Page 7 of 13 permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. 1. Provide a written description of the proposed impacts: See attached 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, cer?nrntely liet imnnr.tc dine to both ctrrnct?ure and flooding. Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within 100-year Floodplain ( es/no) Distance to Nearest Stream (linear feet) Area of Impact (acres) Total Wetland Impact (acres) 0 3. List the total acreage (estimated) of all existing wetlands on the property: none 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams mutt he included Tn calculate acreage. multinlv length X width. then divide by 43,560. Stream Impact Number (indicate on ma) Stream Name _ Type of Impact Perennial or Intermittent? Average Stream Width Before Impact Impact Length (linear feet) Area of Impact (acres) 1 North Creek Stream stabilization Perennial 11 25 .006 2 North Creek Stream stabilization Perennial 14 12 .004 Total Stream Impact (by length and acreage) 37 .010 Page 8 of 13 Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.). Open water impacts include, but are not limited to fill, excavation, dredging, flooding, drainage, bulkheads, etc. Open Water Impact Site Number (indicate on ma Name of Waterbody (if applicable) Type of Impact Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc.) Area of Impact (acres) Total Open Water Impact (acres) 0 6. List the cumulative impact to all Waters of the U.S. resulting from the project: Stream Impact (acres): Wetland Impact (acres): 0 Open Water Impact (acres): 0 Total Impact to Waters of the U.S. (acres) 0 Total Stream Impact (linear feet): 7. Isolated Waters Do any isolated waters exist on the property? ? Yes ® No Describe all impacts to isolated waters, and include the type of water (wetland or stream) and the size of the proposed impact (acres or linear feet). Please note that this section only applies to waters that have specifically been determined to be isolated by the USACE. 8. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ? uplands ? stream ? wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): Current land use in the vicinity of the pond: Size of watershed draining to pond: VII. Impact Justification (Avoidance and Minimization) Expected pond surface area: Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts Page 9 of 13 were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. See Attached VIII. Mitigation DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on January 15, 2002, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o.enr.state.nc.us/ncwetlands/strmgide.html. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. N/A 2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at (919) 715-0476 to determine availability, and written approval from the NCEEP indicating Page 10 of 13 that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at http://h2o.enr.state.nc.us/M/index.htm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): N/A Amount of buffer mitigation requested (square feet): N/A Amount of Riparian wetland mitigation requested (acres): N/A Amount of Non-riparian wetland mitigation requested (acres): N/A Amount of Coastal wetland mitigation requested (acres): N/A IX. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes ® No ? 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify V Yes ® No ? 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. Zone* Impact (square feet) Multiplier Required Mitigation 1 6,977 3 (2 for Catawba) N/A Page 11 of 13 2 4,798 1.5 N/A Total 11,775 * Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 213 .0242 or .0244, or .0260. XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. No impervious acreage will be added to the site during this project. XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. N/A XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules? Yes ? No Is this an after-the-fact permit application? Yes ? No ? XIV. Cumulative Impacts (required by DWQ) Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes ? No ? If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: XV. Other Circumstances (Optional): Page 12 of 13 XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). Applicant/Agent's Signature (Agent's signature is valid only if an authorization letter from the applicant is provided.) Mr. Charles D. Leffler, Vice Chancellor for Finance and Business Date Page 1 of 1 I North Creek Constructed Stormwater Wetland with Vegetated Waterway System & Stream Enhancement (stream reach between Varsity Drive to Research Drive) - North Carolina State University Pre-Construction Notification Application Form Attachments Part III, Question 9: Existing Conditions The proposed project is planned along a 1,050 foot reach of North Creek on NCSU Centennial Campus. This reach is between Varsity and Research Drives. The planned work includes the construction of a stormwater wetland (Figures 1, 2, and 8), and stream and buffer enhancement along this reach (Figures 3). The stormwater wetland is a desperately needed retrofit to an existing stormwater outfall system. The current outfall configuration has contributed to an extensive amount of damage and sediment transport to North Creek. Two existing outfalls deliver runoff at high velocity to a terrace area just outside the creek buffer. The outfalls are approximately 7-9 feet in elevation above the creek bed creating a steep slope. The outfalls have weakened soil conditions and stream banks, causing some trees to fall during high winds. This damage has progressed in the last two years, with a deep gully and headcut forming, delivering eroded sediments and debris into the creek. The attached photographs depict the outlets and the large scour hole that has formed and filled with fallen trees, stones, and weedy vegetation (Figures 4-7). Two stormwater culverts discharge onto the site. The larger culvert (SOC 3) is 3 feet in diameter and drains water from a watershed of approximately 4.8 acres of 65% impervious roadway from Varsity Drive. The smaller 2 foot culvert (SOC 4) drains water from a 5.6 acre area of approximately 87% woodland and 13% impervious roadway from Capability Drive. The stream banks are very unstable in this section of the project. The current scour-hole starts at the confluence with North Creek and is slowly migrating northward from the channel headcut, which will eventually endanger the culvert wing-wall on Varsity Drive and large hardwood trees currently stabilizing the remaining stream bank. Part III, Question 10: Overall Project Description A constructed stormwater wetland and vegetated waterway system is proposed on the abandoned terrace of North Creek to serve as a stormwater BMP retrofit on Centennial Campus, NCSU. The proposed wetland will repair the eroded gullies, re- route the stormwater into a stable swale and to the wetland for treatment. Plunge pools consisting of large boulders and a geo-textile liner will be installed at the outlets of both culverts to dissipate energy and remove larger sediment. The plunge pool at the SOC 3 culvert will discharge stormwater over a spillway reinforced with turf matting to the 1% sloped vegetated waterway. The vegetated waterway is designed to handle peak flows from the 25-yr storm event. The first section of the waterway handling discharges from SOC 3 has a top width of 12 feet with a maximum depth of 1.5 feet. Where the waterway merges with the reinforced spillway from the SOC 4 culvert plunge pool, the waterway dimensions change to a top width of 16 feet, a maximum depth of 2.0 feet, and a channel slope of 0.5%. Construction drawings for the stormwater wetland system are attached. Due to the limited space for construction of the site, the proposed stormwater wetland is designed to hold water from the first 0.3 inches of rainfall with a three-day retention time for the stormwater. Considering the first-flush nature of pollutant runoff during storm events, this stormwater wetland system will capture and treat a larger proportion of the pollutants in the runoff compared to the fraction of runoff volume. A modified flash board riser system will control the water level in the wetland and is designed to safely route the 25-yr, 24-hr storm with minimum disturbance to the stream and floodplain. The surface area of the stormwater wetland is 3,978 sq ft, approximately 0.88% of the total watershed area comprised of both SOC 3 and SOC 4 drainage areas. Approximately 16% of the wetland contains two deep pools (at most 2.5 ft deep below normal pool) and one shallow pool (at most 1.5 ft deep below normal pool). A sinuous low-flow channel 2 feet wide and 1 foot deep connects the three pools and comprises about 18% of the wetland surface area. A shallow water area between 0-6 inches below the normal pool will encompass 36% of the total wetland surface area. The remainder of the wetland surface area (45%) will contain shallow land that will only be completely covered with water during storm events that reach the extended detention depth of 1-foot. In order to construct the stormwater wetland and vegetated waterway system, the existing ground will be excavated. Part of the road bank of Capability Drive will be graded to a slope no greater than 2/1 in order to meet the grade requirements for the wetland while maintaining 3/1 side slopes within the wetland as well as a required distance of 15 ft from any trees larger than 9-inches. Excess cut soil from the wetland will be used to fill the existing scour-hole and re-stabilize that section of the North Creek stream bank. During the project, excavated soil will be stockpiled in designated areas, and check dams with slope drains will be installed at the spillways to the two plunge pools to safely divert stormwater to North Creek. In addition, a temporary sediment dam will be installed at the exit of the scour-hole before the confluence with North Creek to help remove any remaining sediment. In order to maintain permanent stormwater wetland conditions the bed of the wetland will be sealed using bentonite clay liners at the depth of excavation, with a minimum permeability of 0.01 in/hr. The liners will be constructed by spreading bentonite onto the soil surface, vertically distributing the bentonite into the existing soil using a pug-mill mixer or other suitable mixing equipment, and then compacting the liners using a backhoe, track hoe, or other compacting equipment. A soil geotechnical consultant will be required to determine the amount of bentonite to add, the degree of compaction, and will oversee the installation of the liner. The permeability of the liner will be tested for quality assurance before construction of inner wetland features begins. A layer of topsoil will also be added over the bentonite clay liner to prevent pH spikes and provide a healthy media for vegetation. The final phase of the stormwater wetland/waterway construction will be the addition of vegetation within the wetlands and along the perimeter of the project site. A variety of native wetland species will be placed in specified areas within the wetland, grasses will be planted on the berms and vegetated waterway, and upland plants including shrubs and trees will be added surrounding the wetland boundary to further improve the riparian function of the floodplain. In conjunction with the stormwater wetland system, we proposed stream enhancements within the same stream reach. The primary stream impacts proposed are to repair, stabilize, and revegetate a massively eroded are of the stream that the wetland will protect. Additional impacts areas are in support of protecting the primary and emergency outlets of the wetland. Stream impacts in these areas will be limited to reconstruction of streambanks in the immediate area. The areas of impact are shown on the stormwater wetland plans. The impact will be temporary and limited to one side of the bank unless otherwise necessary. The total stream length impact is estimated at 20 feet at each of two locations for a total less than 100 feet. In addition, and as part of the overall project, stream and buffer enhancement has been planned for the entire 1,050 foot reach. Woody vegetation has been severely reduced along one side of the stream due to prior construction activities. The enhancement plans include invasive species control, reestablishment of native woody tree species, and bank stabilization with plantings. The enhancement work may involve a minor amount of grading to physically remove debris, invasive vegetation, or to facilitate planting efforts. No significant grading will take place in or around the stream and the stream pattern and profile will remain unaltered. It is expected that some minor bank grading may be necessary. However, this will be kept to a minimum and will be protected immediately with erosion control matting and vegetation. A final part of this project will involve the stabilization of an existing stormwater outfall upstream of this site. The outfall is currently protected by an insufficient amount of inadequately sized riprap. The area is actively eroding. The riprap will be replaced with a series of rock step pools in an attempt to stabilize the area and prevent further erosion. pcA-tiers We are requesting approval of our stream and buffer enhancement plans associated with this project. The details of planned stream impacts are shown on the attached plans, and a concept plan of the enhancements is also included. This project will be a model for an alternative, minimal approach to stream improvement in an urban area. Please do not hesitate to contact us if additional information is needed. Part III, Question 11: Purpose of the Proposed Work The purpose of this project is to construct a stormwater wetland and vegetated waterway system to improve the water quality and treatment of stormwater, re-stabilize parts of North Creek's stream banks and terrace, reduce sediment transport, and to protect and improve the remaining riparian trees and vegetation along the creek. The wetland/waterway system is anticipated to reduce peak storm flows and help lower nitrogen, phosphorus, suspended sediment, organic compounds, and metal concentrations in the stormwater before it reaches North Creek, using stormwater retention and wetland vegetation and microorganisms. The wetland will serve as a stormwater BMP retrofit on Centennial Campus to improve water quality in the surrounding watershed. In association with the wetland installation, trees, shrubs, and herbaceous wetland and upland species will be planted on the terrace and floodplain in order to enhance the riparian function and aesthetic characteristics. Part V: Future Project Plans Additional stream restoration is planned for a downstream reach of North Creek south of Research Drive, approximately 1,000 feet downstream of the proposed BMP retrofit (see vicinity map). Funding has not yet been secured so construction is not scheduled. Part VI: Proposed Impacts to Waters Damage to Zone 1 exists within this section of North Creek and stream restoration improvements will be completed in cooperation with the BMP retrofit project. Part VII: Impact Justification (Avoidance and Minimization) Impacts to Zone 1 are primary related to stabilization of the streambank area. All attempts have been made to minimize impacts to buffer and stream areas. However, due to space constraints of the project, some temporary impacts are unavoidable. All streambank impacts will result in a significant improvement to bank stability, and buffer impact areas will be densely vegetated. It is our opinion that the site will improve water quality, and contribute to stream and buffer habitat. f1 f f ? ?' I' ¦ s - 4a b ,4 ? 4 - a? Figure 1: Aerial photo with location of proposed BMP (see Fig. 2 Figure 2: Project schematic North Creek Stormwater Wetland and Stream/Buffer Enhancement Concept Plan Pp11dl?p 004 pMN GMk AyproMNnob fwwm?ay Lxdbn Prope..a wxhn,d - ?ICh N owwkq 9u?am impen Ne Ennona?rn?nt Figure 3: Stream/Buffer Enhancement Concept Plan k i i j l i i i I w: i s'r A7t�,.,i 1, I l� a `� ♦r k � , qtr fi . •1 / ��. � Y�...�'' i i� ' +rT � .� �. /r� l i tt •y�,j `fit r: �r Figure 6: Scour -hole with overturned trees Figure 7: Remaining stream bank b/t scour hole and North Creek (confluence on right) 0 NCSU North Creek Stormwater Wetland Project Raleigh, North Carolina NC's Section 319 NPS Program NCSU BAE Cooperative Extension ?J ? I I ? °2 ?e o I x?? l q ' ?i RST. M& fN OAT! 2000 d C w O U 0 Z'- 1? 1OF8 Proposed Waterway Stream Impact/Improvement Area 1 Culvert Wingwall Plunge Pool (see details) 36" RCP ?? \\ \\ ,\ \ l? NAG C350 Permanent Matting CQPobilitY Drive Plunge Pool (see details) 24" RC Proposed Wetland Flashboard Riser North Creek (see details) Top of Bank 36" RCP ?C;e? Stream Impact/ Improvement Area 2 \ \1 \ , \ Removed Trees I Deep Pool I ? Disturbance Limits LVIIV- Shallow Water Total Disturbed Area: 0.46 acres Wetland Zones Normal Depths Pools 2-2.5 below normal pool Law Flow Channels 0.5-1' below normal pool Shallow Water 0-6' below normal pool Shallow Land 0-12' above normal pool Wetland Slopes 12- and above normal pool Iff err- <•c a ?w m ? FIST. Nm ¦ an a? b ro U :5 00 z 20F8 I I I Planting Zone Areas Open Water Areas: 623.1 sf Shallow Water Areas: 1440.6 sf Shallow Land Areas: 1488.5 sf Wetland Slope/Upland Areas: 12.193 sf Total Wetland Area: 3977.5 sf Vegetated Waterway Area: 1957 sf Total Disturbed Area: 0.47 acres Zone Elevations Pools 305-307.5' Low Flow Channels 306.5-307.5' Shallow Water 307-307.5' Shallow Land 307.5-308.5 Wetland Slopes 308.5'+ Plunge Pool 1 Spillway 309' Plunge Pool 2 Spillway 309.5' t 4 1 g? Y A- qua., b q m u SU ,z 0 m? d? Ua A w 0 z 30F8 Vegetated Waterway Plant List Re-seed all disturbed areas with 100 Its/acre of Fescueas eihcr grass mix as directed. Spread straw mulch at a rate of 1.5 tons/acre. Shallow Water Areas Plant a total of 360 wetlmW plugs in the Shallow Water Area. Acquire equal quantities of each species when possible. Plant in groups and on 2 ft centers. species List: Carer lwida his vuln- Shallow Land Areas Plant a total of 375 wetland plugs in the Shallow Land Area. Acquire equal quantities of each species when possible. Plant in groups and on 2 it centers. Species List: Coax awn pupaton= ruudos an Joocm of i, m Siunam o=u m Scirpm xwm Also plant a total of 40 shrub species in Shallow Land Area. Plant these species at 6' spacing a" the outer perimeter and slopes of the wetland. Cephabnthm=idemal s Hibmmm beutm Lobelia cardieslis Ross pshaum Saa?buass camdeme Wetland Slope and Upland Areas Plant a total of 300 shrubs/small trees at 6' spacing. Mitnim tnloba Caphe amaicaty Hibiscus m hmtos Ilex ver5rillata Plant a total of 110 trees at 10' spacing. Celtis laevigm Diospyras vog.- Lmodrodmo wITHiaa Prunuv-fim Shallow Land Shallow Water Slope and Upland Areas Slope 3 Upland Mae Shallow Land 0 Shallow Water Stream WVact/Impravenwnt Arno Pemwnent Matting a ?w MR. ns b a m C i. ? to ? .11 al m-j H ai U 0 0 z 40F8 Cross Section A Existing Surface 3- f Design Surface Structure Stone, Class Boukier_y 1.5 MIN Thickness em :w ww ?,m ,? nm I ww .am yaw ,? „w a. em Cross Section B \ Berm 20.0 R--I at I /// sas sm am nr wm xsw ww ee saw ,sm Cross Section C 31- i ? r fsl r Cross Section D ,,,m ; 12.0 ft q am aw wm ,>m mm am ,, ,m. ,.o w ww am ww em wm ? ww m RS% xl$ Cross Section E 32600 H 322.00 319.00 311.00 310.00 306.00 302.00 0.00 15.00 30.00 45.00 60.00 75.00 90.00 112.50 Ve,U-1 Factor 1.0 'd Q z Cross Section F W 32600 be 321.00 Cf) 3 .00 Extended Detention Depth (E-1. 308.5 ft) V a' J16.00 0 Q 3,2.00 - p; 308.00 - U o 304.00 z 300.00 .. 0.00 15.00 30.00 45.00 60.00 75.00 90.00 112.50 V vertkal Factor 1.0 Z P? Normal Pool Depth (El. 307.5 R) 150F8 18" Slope Drains (see details) r NAG SC1508N Temporary Matting snob. Lad 0 Silt Fence Silt Fence shall. ware. (see details) (see details) Mcaaykrwo..aeat Am Pefala t Mawng Elm Temporary Rock Dam ® (see details) .. / NAG SC1508N / / Temporary Matting .10 SI e `• Drai s (s detail i a w ? RS[ KA b a v "A ma 0 °m N U W ? goy. a UPIMW ,Yeas I PROJECT NARRATIVE: CONSTRUCTION ENTRANCE N.T.S. This project is part of the Water Quality and Biological Integrity Improvement Project in North Creek/Walnut Creek. It is a joint venture between North Carolina's Section 319 NIPS Program and N.C. State University. The 57 MIN. N OTES: goal of this project is to construct an innovative stormwater control enhancement to establish a natural The proposed wetland while effectively treating urban stormwaler pollutants corridor throu h an urban settin BUT SUMCIENT TO KEEP 1. PUT SILT FENCE OR TREE PROTECTION FENCE a+• 4 ? . g g and vegetated swole system will not any treat stannwater, but provide improvement in flood control and O SEDIMENT DIH SITE RANCE TO ENSURE CONSTRUCTION CTIO cnaN ENTRANCE IS USED. . 02 enhance native wildlife habitat and ecological diversity. The project involves bulk earth movement, fine grading, 2. IF CONSTRUCTION ON THE SITES ARE SUCH THAT THE MUD IS NOT REMOVED BY THE VEHICLE TRAVEL- r' y d $ installation of pipng, final grading, and planting. ING OVER THE STONE THEN THE TIRES OF THE 9 I: f57 WASHED STONE TO EYISTING 15' OR WIDTH OF 15' OR IDTH O , VQRCAES MUST BE WASHED BEFORE E14TERNG THE i W GENERAL CONSTRUCTION SEQUENCE: BE USED ROADWAY NT, WDEST anCHEVERiS PulTUC RoAa 1. Locate and set up an appropriate site for stockpile of materials and storage of P equipment. CHEATER. A E A PROJECT CONTINUES TO PULL MUD AND DEBRIS ON TO THE PUBLIC ROAD, THE GOVERNING AUTHORITY ° y ii 2. Install all erosion control measures including construction entrance. WILL CLEAN THE AREA AND INVOICE THE FINANCIALLY 04 3. Remove dawned trees and debris from eroded channel. RESPONSIBLE PERSON As INDICATED CN THE FINANCIAL 4. Construct plunge pools, check dams and slope drains at culvert outlets. RESPONSIBILITY FORM. Remove and stock ile to soil 5 PLAN p p . . 6. Begin mass grading operations. 7. Install outlet pipes/structures in wetland. 8. Replace topsoil and complete fine grading. as MIN. 15 MIN. NEW CONSTRUCTION 9. Implement planting plan. EXISTING ROADWAY 10. Request a completion inspection from the Project Engineer. GRADING AND EROSION CONTROL NOTES: ' 12' MIN. , 6 MIN, 1. All erosion control must be set-up and inspected prior to commencement of grading operations. 1W T f t t i tl d i d t k il t il i i di t d b Irsr. ae, n or use as su ra e n we an p an p e opso n n ca e areas s s. 2. Str s oc FILTER FABPoC UNOER STONE ®OIDID. 3. Culverts shall be reinforced concrete pipe or equivalent. al 4. All elevations shown on the Project Drawings are relative. Utilize benchmarks as directed by the Project LARGE PLUNGE POOL PROFILE Engineer. Grading shall be met within o tolerance of 0.1' Ane 2001 5. Stabilization measures shall be initiated as soon as practicable in portions of the site where construction scam activities have temporarily or permanently ceased, but in no case more than fourteen (14) days after work has Flared end-section ceased, unless activity in that portion of the site will resume within twenty-one (21) days. 1'M esarTrr. 6. All sediment and erosion control devices shall be inspected every seven (7) days or after each rainfall Q. 312.9 37' IasJ IbN treed, occurence that exceeds one-half (1/2) inch. Damaged or ineffective devices shall be repaired or replaced, as `INtlaiO Q. 312.0' necessary. - NAG C350 Pemanent Matting 7. All erosion control devices shall be properly maintained during all phases of the construction until the 3' RCP / On Spill., eocsAAe.e completion of all construction acitivities and all disturbed areas have been stabilized. Additional control devices Q. 310.5' _ - - - - -? - - - - may be required during construction in order to control erosion and/or off-site sedimentation. All temporary El. 309.5' control devices shall be removed once construction is complete and the site is stabilized. N El. 309.3' - - - - - - - - - - - b Q. 309.0' 1.5' pj 8. The contractor must take necessary action to minimize the tracking of mud onto the paved roadway ?I - - - - - - - - - - - - - - - - - - construction areas. The contractor shall daily remove mud/soil from pavement, as may be required. - I i - - - - - - - - - - - - - _ I i I i i I I i I ,? 9. Temporary diversion berms and/or ditches will be provided as needed during construction to protect work 27, y areas from upslope runoff and/or to divert sediment laden runoff water to appropriate traps or stable outlets. 6' layer of gravel I I I I I I I I I •r, ?'' 1.5' Min. A B U Recommended Wetland Maintenance Activities I I I C z 1. Outlet S Inlet Inspection/minor maintenance. Once per month (after every 1-1.5' I I I I I III I ?I tie storm). Clean out trash/debrls from structures and trash racks. +3 }j'y 2 Periodic trash remova6 As needed. Clean trash from wetland Interior as needed LARGE PLUNGE POOL X-SECTION Filter fobric for wetland aesthetics, ,Sy U +3 3 Destroy muskrat holes (do this when doing #2 above), >r 4. Do not mow planted wetland sideslopes. The tops of berms and backslopes may be mowed 26' - 0 Z at the City's discretion. No mow zone' signs are recommended at a minimum 10' foot U Z distance from protected areas. p 5. Invasive Species Removal. Once per year. Only necessary for cattail removal or to improve d 3' RCP ?I U site aesthetics. z 6. Mirror Outlet/Inlet repair. Once every 2-3 years. Identify and repair erosion problems. Note: L - - Replace damaged boards in Rashboard risers. Compact earth material into gaps and voids. 7. Forebay Inspection/dipping. Once every 3-5 years (or as needed). Excavator or Clow A atone may be used as needed to similar equip may be needed. Due to the developed nature of this watershed, this fill boulder gape R'NP Y Additional rip-rap and fill material may be ?f Q activity may not ever be necessary. required around footer rocks for proper 70F8 embedment. SEDIMENT FENCE T CHECK DAM/SEDIMENT TRAP Sloe Drain and Inlet Detail P .S. N. N.T.S. 1. CONSTRUCTION SPECIFICATIONS I. CONSTRUCTION SPECIFICATIONS q F 1. Mark the intended line of placement for the sediment fence 1. Place stone to the lines and dimensions shown in the plan on a filter fabric Check dam over inlet 2' min @2 4 p5 V m on the ground at the site as outlined on the plan. foundation. und level where l l t b _ Z 2. Construct the sediment fence of standard strength ura gro ow na e 2. Keep the center stone section at least nine (9) inches 1 5' i "z?tr d or extra strength synthetic filter fabric. Do not use the dam abuts the channel banks. overflow kee k t dit h b . m n f: fabrics that are biodegradable. Synthetic filler quickly p an o s c 3. Extend the stone of least one and a hot( (1.5) feet beyond the fabric should contain ultraviolet ray and stabilizers Y inhibitors water from undercutting the dam as it re-enters the channel. .? to provide a minimum of 6 months of expected usable 4. Use four (4) to fifteen (15) inch stone (NCOOT class 1 or class B erasion control A 3 construction 18e at a temperature range of 0 to 12P F. stone). Hob-down k t S Ensure that the height of the silt fence does not exceed a a - eighteen (18) inches above the ground. Il. MAINTENANCE 3. Construct the filter fabric from a continuous roll cut to the length of the barrier to avoid joints. When joints are 1. Inspect channel for damage after each runoff event. plastic corrugated necessary, securely fasten the filter cloth only at a support Remove sediment accumulated behind check dam as needed to prevent damage to 2 pips \ past with overlap to the next post. For reinforcement of . channel vegetation, allow the channel to drain through the stone check dam, and filter fabric, use wire fence with a minimum fourteen (14) prevent large flows from carrying sediment over the dam. gauge and a maximum mesh spacing of six (6) inches. 3. Add stones to the dam as needed to maintain design height and cross section. 4' min 4. Support filter fabric with wire mesh fastened securely to the upslope of the posts using either tie wires or heavy duty wire staples at least one (1) inch long. Extend the wire mesh to ?ILL'..':. support the bottom of the trench. 5. Space posts a maximum of eight (8) feet apart. Support should be driven securely into the ground to a minimum depth z FT. Rase Naar Close t a aoee B Gravel Faced with emsw, aadml stow. ' \ s of eighteen (18) inches. Ensure that the posts for sediment thick NCaoT la'wn'"" l aaaet pipe. fences ore 1.33 lb/linear ft steel with a minimum length of 152 vg6ed "lane Make all pipe connections watertight and Rsr, xta rN four (4) feet. Make sure that steel posts have projections to secure so that the joint. wail not Iwo ..I. in INLET DETAL facilitate fastening the fabric. ou.Fr./waE teoa (ux.) saRerf KKIyE ? ?z T' a FL use. 6. Excavate a trench approximately four (4) inches wide and l h l th d li f t d d T (ma:) lea eight (8) inc ong e propose ne o pas s an ups ope es deep a f th i b Ewer hod sk4 rom arr er. e 7. Backfill the trench with compacted sail or gravel placed . 2006 over the filter fabric. 8. Do not attach the filter fabric to existing trees. FAERC FILTER LINER X-SECTION contlnuaaoi under stone start II. MAINTENANCE rem' 1. Fence posts which have become dislodged or displaced h ll b i di l l d f t / W? RI°er tro.nr. w Neu crew or any reason s mme y rep ace . a e a e 2. Tears in the fabric of the fencing shall likewise be repaired on o- 011 w°"10t' ekaand to maintain the intended function of the silt fence. l? 3. The proper function of the sediment fence is to be maintained 7 at all times. Z- III. REMOVAL c under stm. I . 1. Confirm with the Southern Pines Public Works Department that STONE SECTION I q removal of the fence is acceptable. TYPICAL 2. Remove the sediment fence and smooth the disturbed area to I :> blend with the surrounding topography. Limited to5Daaa TEMPORARY ROCK DAM 1-4 41 13-in life 3 F. • Dam height B k mar NRCD 6.63 Na SCALE I G l f i cl ",.He rave ng m an ac • Long wok aM to keep flow depth shadow `y s, 0 8 law disdi" Wadtlee Not[ Raw Dan should not be located In IM a 'tr'am. D U a Basel A U 7, 0 PLAN HEW rn t 1 he U m? Compacted fie Extension of fabric and wire into the trench FLASHBOARD RISER DETAIL Flmhboord Rl N.T.$ .er EL 309.5 ft - Tap of Embankment EL Top of Riser = 308.5 ft F•1 rJ2 N Re' U N Riser Olom = 5 ft 3 0 0 e Barrel 1 r Pi L) Flier Fabric p EL .Bet .a rJ3 INV = 300 5 ft U . . Z \//? / laver FBI bottom with 1.5 ft of concrete Pips barrel 1'ISit?1s8 \v\?\?//h/?? Dian. - 3 ft RISER SCHEMATIC p S EL Bottom PROFILE VIEW OF Of Riser = 299.0 ft Stormwater Outfall Retrofit Schematic f I . 349.00 348.00 _- 347.00 -- 346.00 -- 343.00 344.00 -- 343.00 341.00 0. 1 Fig. 4: SOC 2 Conceptual Step Pool 10.0 49" CMP Culy, Inv, 313,34' &00 • • • • <:;, f .. j,' ..., •: i 2'x2'x2' Step + • Rocks w/ footer `'ti`..±. _ : ` (size varies w/ avallabllity) a. NO, leclium Gravel 9-12' Ston ! ''?# `'` Earthen Pool -• ` '' ' , Vegetation & ` ' Turf Reinforcement •`" Matting • ' ` -°'= .' 14,0 14.0 50.0 -;)L-, Fig. 3: SOP 2 Conceptua Thalweg North Creek A Removal of I Fallen Trees North i 305.74 Silt Fence Removal Proposed Native Vegetation Perimeter Invert 313,3 Tel phone Pole w/ Su port Cables Existing Outfall Channel Thalweg !;.. Existing Top of Bank Outfall Channel - - Estimated Existing Top of Bank North Creek Proposed Step Pool Channel i A . North Carolina State University is a land- Office of Finance and Business Grant university and a constituent institution Business Division Of The University of North Carolina State U"/",O, Nr, 0 ??erer October 10, 2006 Ms. Laurie Dennison NC Department of Environment & Natural Resources 401 Oversight/Express Review Permitting Unit 1650 Mail Service Center Raleigh, North Carolina 27699-1650 Reference: Karoly, Cyndi, Request for Additional Information Letter Dated October 3, 2006 Subject: NC State North Creek Stormwater Wetland DWQ Project # 06-1445 Ms. Dennison: Director 919.515.4238 Environmental Affairs 919.515.6859 Industrial Hygiene 919.515.6860 Health and Safety 919.515.6858 Radiation Protection 919.515.2894 (Fax) 919.515.6307 I received a letter from your office on October 9, 2006 requesting the following additional information. Please indicate all buffer impacts on the site plan. 2. Please indicate the location of the protected buffers as overlays on the site plan, clearly . identifying Zone 1 and Zone 2. 3. Please locate all isolated or non-isolated wetlands, streams and other waters of the State as overlays on the site plan. Attached are updated site plans that include the information requested above. If you require additional information or have any questions, please do not hesitate to contact me at 515-4030. Sincerely, ayn Ann Rowland Stormwater Program Manager An Equal Opportunity/Affirmative Action Employer Environmental Health & Safety Ce hftp://www2.ncsu.edu/ehs/ Campus Box 8007 Raleigh, North Carolina 27695-8007 V t. w ?. Pt 4 ..- . . L4. attachment(s) 1 /// //T---- C QAobilit y Drive Total Disturbed Area: 0.46 acres Buffer/Stream Zone Area Impacted Buffer Zone 1 6,977 s q. ft. Buffer Zone 2 11,775 s q. ft. Stream Impact 1 - 0.006 acres - Stream Impact T OM.4 acres '1'1'1'1'1'1 I I .I 111111111111 11111111111 I 1111111111111 . 11111111111 II' 11,1,1,1,1,1,1,111,111111111,1 . 11111?1?11111111111111111?1?11 11111?11111?11111111111111111111 ?, 11111111111?111?11111111111111111 11111111111111111 1 1 1 1 1 1 1 1 111111111111111111 1111111111 Buffer Zone 1 (Protected) Stream Impact/Improvement Area 1 I North Creek Top of Bank VK h 11111111 IIIIIIII?I?I?I?II I 11111,11111,1,1, ?. II?IiI?I1I1I11I1I'1' I 1 11111?IIIIIIIIII Buffer Zone 1 (Project enhancement and impacts) Buffer Zone 1 (Protected) 1'1 Lill' I1'1'11111 I 1 1 1 1?1?1? ?I CL ' ?I?1?NLI1I III 111111 I IIIIIIII 111?1?1 11111 III II Le9wxf Buffer Zone 1 Protected i , Buffer Zone 1 Impacted F-1 Buffer Zone 2 Impacted y' Stream Impact/Improvenwd Protected Perennial Stream 7--era Stream Impact/ Improvement Area 2 o ' 11sr. KM Affle b Buffer Zone 2 - C.) ed (Project enhancement 04 ? and impacts) ?--- Edge of Project e ?U z 0 0 Buffer Zone 2 cd M (Project enhancement a? and impacts) a \ Note: Project impacts to Zone 1 are primary related to stabilization of the streambank area. Currently, Zone 1 consists of a badly eroding gully from a stormwater outfall and a degrading stream bank. Due to space constraints of the project, some temporary impacts are unavoidable. All streambank impacts will result in a significant improvement to bank stability, and buffer impact areas will be densely vegetated. ?~ pCT 1 200L cp .^ n'-, North Carolina State University is a land- ofl(ce of Finance and Business Grant university and a constituent institution Business Division Of The University of North Carolina GState Ury?? 0 M%4, September 20, 2006 http:/Avww2.ncsu.edu/ehs/ F 7,' SE? `? ? "lOUb DENR - WATER UUALITY 1?IE'rUVrt?4 iW+D Ms. Laurie Dennison NC Department of Environment & Natural Resources 401 Oversight/Express Review Permitting Unit 1650 Mail Service Center Raleigh, North Carolina 27699-1650 Reference: Karoly, Cyndi. Request for Additional Information Letter Dated September 7, 2006 Subject NC State North Creek Stormwater Wetland DWQ Project # 06-1445 Ms. Dennison: Campus Box 8007 Raleigh, North Carolina 27695-8007 Director 919.515.4238 Environmental Affairs 919.515.8859 Industrial Hygiene 919.515.6860 Health and Safety 919.515.6858 Radiation Protection 919.515.2894 (Fax) 919.515.6307 I received a letter from your office via e-mail on September 13, 2006. Below and attached is the additional information requested. 1. Section I. Processing Please state which Permit (Nationwide, Regional, or General) number you intend to use. I have contacted Thomas Brown with the US Army Corps of Engineers. He has indicated that a Nationwide Permit #13 would be appropriate for the subject project. 2. DWQ requires the name of the individual shown as "Owner/Applicant" to set up the project I have spoken with Ian McMillan and he suggested the following information in addition to Mr. Charles D. Leffler, Vice Chancellor of Finance and Business. North Carolina State University Office of Finance and Business Holladay Hall B, Box 7201 Raleigh, North Carolina 27695 3. Applicant/Agents Signature page missing. Please see attached page with Mr. Leffler's signature and date signed. Laurie Dennison Page 2 September 20, 2006 4. Water Body information not stated. Section III Project Information, Item 7. Please see attached page (6 of 13) from the permit application previously submitted. 5. Incorrect and/or missing wetland, intermittent perennial stream and/or buffer impacts. Please see attached pages (8 of 13), (11 of 13) and (12 of 13) from the permit application previously submitted. 6. Lack of permitting fee. It is my understanding that the payment has been made by electronic transfer. The invoice number is Neuse CU:03020201with a sequence number of 90426. If you have any questions regarding the electronic transfer, please contact Bonnie Kurth at 515-8239. If you require additional information or have any questions, please do not hesitate to contact me at 513-4030. Thank you for your time. Sincerely, r enAnn Rowland Stormwater Program Manager attachment(s) XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). Applicant/Agent's Signature (Agent's signature is valid only if an authorization letter from the applicant is provided.) Mr. Charles A Leffler, Vice Chancellor for Finance and Business ?sCI'D 6 Date Page 1 of 1 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: North Creek Constructed Stormwater Wetland with Vegetated Waterway System & Stream Enhancement (stream reach between Varsity Drive to Research Drive) 2. T.I.P. Project Number or State Project Number (NCDOT Only): 3. Property Identification Number (Tax PIN): 079352262 4. Location County: Wake Nearest Town: Raleigh Subdivision name (include phase/lot number): N/A Directions to site (include road numbers/names, landmarks, etc.): From downtown Raleigh, take Western Blvd west and make a left on Avent Ferry Rd. Turn left onto Varsity Drive (entrance to Centennial Campus) and a right onto Capability Drive. Project site is on immediate left at bottom of road bank. 5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 350 46' 28" ON 78° 40' 46" °W 6. Property size (acres): Project site is less than 1 acre 7. Name of nearest receiving body of water: North Creek tributary to Lake Raleigh 8. River Basin: Neuse (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at h"://h2o.enr.state.nc.us/adrnin/maps/.) 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: See attached Page 6 of 13 r permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. 1. Provide a written description of the proposed impacts: . See attached 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding. Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within 100-year Floodplain ( es/no) Distance to Nearest Stream (linear feet) Area of Impact (acres) Total Wetland Impact (acres) 0 3. List the total acreage (estimated) of all existing wetlands on the property: none 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. To calculate acreage, multiply length X width, then divide by 43,560. Stream Impact Number indicate on ma Stream Name Type of Impact Perennial or Intermittent? Average Stream Width Before Impact Impact Length linear feet) Area of Impact acres 1 North Creek Stream stabilization Perennial 11 25 .006 2 North Creek Stream stabilization Perennial 14 12 .004 Total Stream Impact (by length and acreage) 37 .010 Page 8 of 13 that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application, process for the NCEEP, check the NCEEP website at htti)://h2o.enr.state.nc.us/wm/index.htm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): N/A Amount of buffer mitigation requested (square feet): N/A Amount of Riparian wetland mitigation requested (acres): N/A Amount of Non-riparian wetland mitigation requested (acres): N/A Amount of Coastal wetland mitigation requested (acres): N/A IX. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes ® No [] 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify V Yes ® No ? 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. Zone* sqImpact uare feet Multiplier Mitig t on 1 6,977 3 (2 for Catawba) N/A Page 11 of 13 1 2 . 4,798 1 1.5 I N/A Total I 11,775 I 1 * Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. No impervious acreage will be added to the site during this project XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules? Yes ? No Is this an after-the-fact permit application? 'Yes ? No ? XIV. Cumulative Impacts (required by DWQ) Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes ? No ? . If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description:. XV. Other Circumstances (Optional): Page 12 of 13 North Carolina State University is a land-grant NCSU Water Quality Group university and a constituent institution of the Department of Biological and Agricultural Engineering University of North Carolina College of Agricultural and Life Sciences Campus Box 7637 + Raleigh, NC 27695 919.515.8240 (phone) 919.515.7448 (fax) Re: North Creek Stormwater Wetland and Stream Enhancement To whom it may concern, NC State University Water Quality Group is proposing the construction of a stormwater wetland on NCSU Centennial Campus. The wetland is a badly needed retrofit to an existing storm drain system. The drain outlets are currently causing excessive erosion and destabilizing stream banks. The retrofit will route waters through a stable channel into a stormwater wetland for treatment. Due to the urban constraints of the area, impacts are proposed to the riparian buffer and streambanks in the vicinity of the wetland. A full set of plans detailing these impacts and further explaining the project is included with this package. The total disturbed area for the project will be less than 1 acre. In addition to the wetland, the associated stream reach is proposed for enhancement. The enhancement will include repair and stabilization of streambanks in the vicinity of the wetland, and a variety of activities along the project reach. The primary proposed enhancement activities will include invasive species removal and native species introduction and management. We propose to utilize some bank stabilization measures as necessary, which will include minor grading, protection with erosion control fabric, and revegetation. The project is being funded by the USDA and the NCDENR 319 program. We believe that the fully implemented project will be an example of how stormwater practices, and a properly managed urban riparian buffer zone can improve water quality and aesthetics in a constrained urban setting. A graduate student research project is underway for the site, which should provide information on the benefits of the project. Please accept our proposal and permit application package for the site. The permit is supported by and submitted through our NCSU Stormwater Program. Please feel free to contact me with any questions you may have. My phone number is given above and my email is jean_spooner@ncsu.edu River Basin: Neuse CU: 03020201 14-digit HU: 03020201090010 County: Wake Municipality: Raleigh Receiving Water: Lake Raleigh, Thank you, Walnut Creek; 03-04-02 Jean Spooner, PhD Group Leader, Extension Specialist F@20WRY SEP 7 2006 WERAN"'AN STORMWATERBRANCN Employment and program opportunities are offered to all people regardless of race, color, national origin, gender, age or disability. North Carolina State University, North Carolina A&T State University, U.S. Department of Agriculture, and local governments cooperating. PgROW4 SEP 7 2006 DENR - WATER QUALITY WETLANDS AND STQRMYVATFR BRANCH A OF I NA T?9 Q0 r Pre-Construction Notification (PCN) Application Form For Section 404 and/or Section 10 Nationwide, Regional and General Permits, Section 401 General Water Quality Certifications, and Riparian Buffer and Watershed Buffer Rules This form is to be used for projects qualifying for any of the U.S. Army Corps of Engineers' (USACE) Nationwide, Regional or General Permits as required by Section 404 of the Clean Water Act and/or Section 10 of the Rivers and Harbors Act, and for the North Carolina Division of Water Quality's (DWQ) associated General 401 Water Quality Certifications. This form is also to be used for any project requiring approval under any Riparian Buffer Rules implemented by the N.C. Division of Water Quality. This form should not be used if you are requesting an Individual 404 Permit or Individual 401 Water Quality Certification. The USACE Individual Permit application form is available online at www.saw.usace.army.mil/wetlands/Pennits.html. The USACE is the lead regulatory agency. To review the requirements for the use of Nationwide, Regional or General permits, and to determine which permit applies to your project, please go to the USACE website at www.saw.usace.army.mil/wetlands/index.html, or contact one of the field offices listed on page 3 of this application. The website also lists the responsible project manager for each county in North Carolina and provides additional information regarding the identification and regulation of wetlands and waters of the U.S. The DWQ issues a corresponding Certification (General or Individual), and cannot tell the applicant which 401 Certification will apply until the 404 Permit type has been determined by the USACE. Applicants are encouraged to visit DWQ's 401/Wetlands Unit website at http://h2o.enr.state.nc.us/ncwetlands to read about current requirements for the 401 Water Quality Certification Program and to determine whether or not Riparian Buffer Rules are applicable. The applicant is also advised to read the full text of the General Certification (GC) matching the specific 404 Permit requested. In some cases, written approval for General Certifications is not required, provided that the applicant adheres to all conditions of the GC. Applicants lacking access to the internet should contact DWQ's Central Office in Raleigh at (919) 733-1786. Trout Waters Coordination - Special coordination with the North Carolina Wildlife Resources Commission (NCWRC) is required for projects occurring in any of North Carolina's twenty-five counties that contain trout waters. In such cases, the applicant should contact the appropriate NCWRC regional coordinator (listed by county on page 4 of this application) prior to submittal of the application. Page 1 of 13 Coastal Area Management Act (CAMA) Coordination - If the project occurs in any of North Carolina's twenty coastal counties (listed on page 4) the applicant should contact the North Carolina Division of Coastal Management (DCM). DCM will determine whether or not the project is within a designated Area of Environmental Concern, in which case DCM will act as the lead permitting agency. In such cases, DCM will require a CAMA Permit and will coordinate the 404/401 Permits. The applicant may also choose to coordinate with the United States Fish and Wildlife Service to ensure that the proposed project will have no impact upon any endangered or threatened species or critical habitat as regulated by the Endangered Species Act, and the State Historic Preservation Office, North Carolina Department of Cultural Resources to ensure that the proposed project will have no impact upon any properties listed or eligible for listing on the National Register of Historic Places. Compliance with these regulations is required to be eligible for any Department of the Army permit. The addresses for both agencies are listed on page 3 of this application. USACE Permits - Submit one copy of this form, along with supporting narratives, maps, data forms, photos, etc. to the applicable USACE Regulatory Field Office. Upon receipt of an application, the USACE will determine if the application is complete as soon as possible, not to exceed 30 days. This PCN form is designed for the convenience of the applicant to address information needs for all USACE Nationwide, Regional or General permits, as well as information required for State authorizations, certifications, and coordination. Fully providing the information requested on this form will result in a complete application for any of the USACE Nationwide, Regional or General permits. To review the minimum amount of information that must be provided for a complete PCN for each USACE Nationwide permit, see Condition 13, 67 Fed. Reg. 2090 (Jan. 15, 2002), available at http://www.usace.army.mil/inet/functions/cw/cecwo/reg/2002nwps.Dd£ Processing times vary by permit and begin once the application has been determined to be complete. Please contact the appropriate regulatory field office for specific answers to permit processing periods. 401 Water Quality Certification or Buffer Rules - All information is required unless otherwise stated as optional. Incomplete applications will be returned. Submit seven collated copies of all USACE Permit materials to the Division of Water Quality, 401/Wetlands Unit, 1650 Mail Service Center, Raleigh, NC, 27699-1650. If written approval is required or specifically requested for a 401 Certification, then a non-refundable application fee is required. In brief, if project impacts include less than one acre of cumulative wetland/water impacts and less than 150 feet cumulative impacts to streams, then a fee of $200 is required. If either of these thresholds is exceeded, then a fee of $475 is required. A check made out to the North Carolina Division of Water Quality, with the specific name of the project or applicant identified, should be stapled to the front of the application package. For more information, see the DWQ website at http://h2o.ehnr.state.nc.us/ncwetlands/fees.html. The fee must be attached with the application unless the applicant is a federal agency in which case the check may be issued from a separate office. In such cases, the project must be identifiable on the U.S. Treasury check so that it can be credited to the appropriate project. If written approval is sought solely for Buffer Rules, the application fee does not apply, and the applicant should clearly state (in a cover letter) that only Buffer Rule approval is sought in writing. Wetlands or waters of the U.S. may not be impacted prior to issuance or waiver of a Section 401 Water Quality Certification. Upon receipt of a complete application for a 401 Certification, the Division of Water Quality has 60 days to prepare a written response to the applicant. This may include a 401 Certification, an on-hold letter pending receipt of additional requested information, or denial. Page 2 of 13 US Army Corps Of Engineers Field Offices and County Coverage Asheville Regulatory Field Office Alexander Caldwell Haywood McDowell US Army Corps of Engineers Alleghany Catawba Henderson Mecklenburg 151 Patton Avenue Ashe Cherokee Iredell Mitchell Room 208 Avery Clay Jackson Polk Asheville, NC 28801-5006 Buncombe Cleveland Lincoln Rowan Telephone: (828) 271-7980 Burke Gaston Macon Rutherford Fax: (828) 281-8120 Cabarrus Graham Madison Stanley Raleigh Regulatory Field Office Alamance Franklin Nash Surry US Army Corps Of Engineers Caswell Forsyth Northampton Vance 6508 Falls of the Neuse Road Chatham Granville Orange Wake Suite 120 Davidson Guilford Person Warren Raleigh, NC 27615 Davie Halifax Randolph Wilkes Telephone: (919) 876-8441 Durham Johnston Rockingham Wilson Fax: (919) 876-5823 Edgecombe Lee Stokes Yadkin Washington Regulatory Field Office Beaufort Currituck Jones US Army Corps Of Engineers Bertie Dare Lenoir Post Office Box 1000 Camden Gates Martin Washington, NC 27889-1000 Carteret* Green Pamlico Telephone: (252) 975-1616 Chowan Hertford Pasquotank Fax: (252) 975-1399 Craven Hyde Perquimans Wilmington Regulatory Field Office US Army Corps Of Engineers Post Office Box 1890 Wilmington, NC 28402-1890 Telephone: (910) 251-4511 Fax: (910) 251-4025 Division of Water Quality 401 Wetlands Unit 1650 Mail Service Center Raleigh, NC 27699-1650 Telephone: (919) 733-1786 Fax: (919) 733-6893 US Fis US Fish and Wildlife Service Raleigh Field Office Post Office Box 33726 Raleigh, NC 27636-3726 Telephone: (919) 856-4520 Anson Duplin Onslow Bladen Harnett Pender Brunswick Hoke Richmond Carteret Montgomery Robeson Columbus Moore Sampson Cumberland New Hanover Scotland North Carolina State Agencies Division of Water Quality Ecosystem Enhancement Program 1652 Mail Service Center Raleigh, NC 27699-1652 Telephone: (919) 715-0476 Fax: (919) 715-2219 h and Wildlife Service / National 1V US Fish and Wildlife Service Asheville Field Office 160 Zillicoa Street Asheville, NC 28801 Telephone: (828) 258-3939 Pitt Tyrrell Washington Wayne Swain Transylvania Union Watauga Yancey *Croatan National Forest Only State Historic Preservation Office Department Of Cultural Resources 4617 Mail Service Center Raleigh, NC 27699-4617 Telephone: (919) 733-4763 Fax: (919) 715-2671 [arine Fisheries Service National Marine Fisheries Service Habitat Conservation Division Pivers Island Beaufort, NC 28516 Telephone: (252) 728-5090 Page 3 of 13 CAMA and NC Coastal Counties Division of Coastal Management Beaufort Chowan Hertford Pasquotank 1638 Mail Service Center Bertie Craven Hyde Pender Raleigh, NC 27699-1638 Brunswick Currituck New Hanover Perquimans Telephone: (919) 733-2293 Camden Dare Onslow Tyrrell Fax: (919) 733-1495 Carteret Gates Pamlico Washington NCWRC and NC Trout Counties Western Piedmont Region Coordinator Alleghany Caldwell Watauga 3855 Idlewild Road Ashe Mitchell Wilkes Kernersville, NC 27284-9180 Avery Stokes Telephone: (336) 769-9453 Burke Surry Mountain Region Coordinator Buncombe Henderson Polk 20830 Great Smoky Mtn. Expressway Cherokee Jackson Rutherford Waynesville, NC 28786 Clay Macon Swain Telephone: (828) 452-2546 Graham Madison Transylvania Fax: (828) 452-7772 Haywood McDowell Yancey APPLICATION FORM BEGINS ON PAGE 5. PLEASE DO NOT SUBMIT PAGES 1 - 4. Page 4 of 13 Office Use Only: Form Version March 05 USACE Action ID No. DWQ No. ?l0 1 L? 4J (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) 1. Processing 1. Check all of the approval(s) requested for this project: ? Section 404 Permit ® Riparian or Watershed Buffer Rules ? Section 10 Permit ? Isolated Wetland Permit from DWQ ® 401 Water Quality Certification ? Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ? 4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII, and check here: ? 5. If your project is located in any of North Carolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal Management Area of Environmental Concern (see the top of page 2 for further details), check here: ? II. Applicant Information U [R?L? Q V Q 1. Owner/Applicant Information SEP 7 2006 rl+?e Name: Charles Leffler IA4:ri . u.._EN_R _ - WAFER src?rMwAT?R e?NCH Mailing Address: Campus Box 7201 Raleigh NC 27695 Telephone Number: 919-515-2155 Fax Number: 919-515-5121 E-mail Address: charles leffler ncsu edu 2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: Company Affiliation: Mailing Address: Telephone Number: E-mail Address: Fax Number: Page 5 of 13 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: North Creek Constructed Stormwater Wetland with Vegetated Waterway System & Stream Enhancement (stream reach between Varsity Drive to Research Drive) 2. T.I.P. Project Number or State Project Number (NCDOT Only): 3. Property Identification Number (Tax PIN): 079352262 4. Location County: Wake Nearest Town: Raleigh Subdivision name (include phase/lot number): N/A Directions to site (include road numbers/names, landmarks, etc.): From downtown Raleigh, take Western Blvd west and make a left on Avent Ferry Rd. Turn left onto Varsity Drive (entrance to Centennial Campus) and a right onto Capability Drive. Project site is on immediate left at bottom of road bank. 5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 35° 46' 28" ON 78° 40' 46" °W 6. Property size (acres): Project site is less than 1 acre 7. Name of nearest receiving body of water: North Creek tributary to Lake Raleigh 8. River Basin: Neuse (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: See attached Page 6 of 13 10. Describe the overall project in detail, including the type of equipment to be used: See attached 11. Explain the purpose of the proposed work: See attached IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. NCSU has several prior permits along this reach. None are directly related to this project. Varsity Drive Crossing of North Creek Action ID #1999821276, NWP 26 NCSU Infrastructure Phase V, Stormwater Management Pond #2 and Greenway Trail DWQ Project # 02-1252 North Creek Constructed Stormwater Wetland DWQ Project # 04-0233 Action ID #200420780 V. Future Project Plans Are any future permit requests anticipated for this project? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application. See attached VI. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. Each impact must be listed separately in the tables below (e.g., culvert installation should be listed separately from riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts, Page 7 of 13 permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. 1. Provide a written description of the proposed impacts: See attached 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding. Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within 100-year Floodplain ( es/no) Distance to Nearest Stream (linear feet Area of Impact (acres) Total Wetland Impact (acres) 0 List the total acreage (estimated) of all existing wetlands on the property: none 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. To calculate acreage, multiply length X width, then divide by 43,560. Stream Impact Number indicate on ma) Stream Name Type of Impact Perennial or Intermittent? Average Stream Width Before Impact Impact Length (linear feet) Area of Impact (acres) 1 North Creek Stream stabilization Perennial 11 25 .006 2 North Creek Stream stabilization Perennial 14 12 .004 Total Stream Impact (by length and acreage) 37 .010 Page 8 of 13 5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.). Open water impacts include, but are not limited to fill, excavation, dredging, flooding, drainage, bulkheads, etc. Open Water Impact Site Number indicate on ma) Name of Waterbody (if applicable) Type of Impact Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc.) Area of Impact (acres) Total Open Water Impact (acres) 0 6. List the cumulative impact to all Waters of the U.S. resulting from the project: Stream Impact (acres): Wetland Impact (acres): 0 Open Water Impact (acres): 0 Total Impact to Waters of the U.S. (acres) 0 Total Stream Impact (linear feet): 7. Isolated Waters Do any isolated waters exist on the property? ? Yes ® No Describe all impacts to isolated waters, and include the type of water (wetland or stream) and the size of the proposed impact (acres or linear feet). Please note that this section only applies to waters that have specifically been determined to be isolated by the USACE. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ? uplands ? stream ? wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): Current land use in the vicinity of the pond: Size of watershed draining to pond: Expected pond surface area: VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts Page 9 of 13 were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. See Attached VIII. Mitigation DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on January 15, 2002, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o.enr.state.nc.us/ncwetlands/strmgide.html. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. 2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at (919) 715-0476 to determine availability, and written approval from the NCEEP indicating Page 10 of 13 that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at http://h2o.enr.state.nc.us/M/index.htm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): N/A Amount of buffer mitigation requested (square feet): N/A Amount of Riparian wetland mitigation requested (acres): N/A Amount of Non-riparian wetland mitigation requested (acres): N/A Amount of Coastal wetland mitigation requested (acres): N/A IX. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes ® No ? 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? Yes ® No ? 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multit)liers. Zone* Impact (square feet) Multiplier Required Mitigation 1 6,977 3 (2 for Catawba) N/A Page 11 of 13 2 4,798 1.5 N/A Total 11,775 * Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment Riparian Buffer Restoration Fund). Please attach all appropriate information as within 15A NCAC 2B .0242 or .0244, or .0260. XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. No impervious acreage will be added to the site during this project. XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules? Yes El No Is this an after-the-fact permit application? Yes ? No ? XIV. Cumulative Impacts (required by DWQ) Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes El No 1:1 If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: XV. Other Circumstances (Optional): into the identified Page 12 of 13 XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). Applicant/Agent's Signature (Agent's signature is valid only if an authorization letter from the applicant is provided.) Mr. Charles D. Leffler, Date Finance and Business Page 1 of 1 8 (?;d o6 North Creek Constructed Stormwater Wetland with Vegetated Waterway System & Stream Enhancement (stream reach between Varsity Drive to Research Drive) - North Carolina State University Pre-Construction Notification Application Form Attachments Part III, Question 9: Existing Conditions The proposed project is planned along a 1,050 foot reach of North Creek on NCSU Centennial Campus. This reach is between Varsity and Research Drives. The planned work includes the construction of a stormwater wetland (Figures 1, 2, and 8), and stream and buffer enhancement along this reach (Figures 3). The stormwater wetland is a desperately needed retrofit to an existing stormwater outfall system. The current outfall configuration has contributed to an extensive amount of damage and sediment transport to North Creek. Two existing outfalls deliver runoff at high velocity to a terrace area just outside the creek buffer. The outfalls are approximately 7-9 feet in elevation above the creek bed creating a steep slope. The outfalls have weakened soil conditions and stream banks, causing some trees to fall during high winds. This damage has progressed in the last two years, with a deep gully and headcut forming, delivering eroded sediments and debris into the creek. The attached photographs depict the outlets and the large scour hole that has formed and filled with fallen trees, stones, and weedy vegetation (Figures 4-7). Two stormwater culverts discharge onto the site. The larger culvert (SOC 3) is 3 feet in diameter and drains water from a watershed of approximately 4.8 acres of 65% impervious roadway from Varsity Drive. The smaller 2 foot culvert (SOC 4) drains water from a 5.6 acre area of approximately 87% woodland and 13% impervious roadway from Capability Drive. The stream banks are very unstable in this section of the project. The current scour-hole starts at the confluence with North Creek and is slowly migrating northward from the channel headcut, which will eventually endanger the culvert wing-wall on Varsity Drive and large hardwood trees currently stabilizing the remaining stream bank. Part III, Question 10: Overall Project Description A constructed stormwater wetland and vegetated waterway system is proposed on the abandoned terrace of North Creek to serve as a stormwater BMP retrofit on Centennial Campus, NCSU. The proposed wetland will repair the eroded gullies, re- route the stormwater into a stable swale and to the wetland for treatment. Plunge pools consisting of large boulders and a geo-textile liner will be installed at the outlets of both culverts to dissipate energy and remove larger sediment. The plunge pool at the SOC 3 culvert will discharge stormwater over a spillway reinforced with turf matting to the 1% sloped vegetated waterway. The vegetated waterway is designed to handle peak flows from the 25-yr storm event. The first section of the waterway handling discharges from SOC 3 has a top width of 12 feet with a maximum depth of 1.5 feet. Where the waterway merges with the reinforced spillway from the SOC 4 culvert plunge pool, the waterway dimensions change to a top width of 16 feet, a maximum depth of 2.0 feet, and a channel slope of 0.5%. Construction drawings for the stormwater wetland system are attached. Due to the limited space for construction of the site, the proposed stormwater wetland is designed to hold water from the first 0.3 inches of rainfall with a three-day retention time for the stormwater. Considering the first-flush nature of pollutant runoff during storm events, this stormwater wetland system will capture and treat a larger proportion of the pollutants in the runoff compared to the fraction of runoff volume. A modified flash board riser system will control the water level in the wetland and is designed to safely route the 25-yr, 24-hr storm with minimum disturbance to the stream and floodplain. The surface area of the stormwater wetland is 3,978 sq ft, approximately 0.88% of the total watershed area comprised of both SOC 3 and SOC 4 drainage areas. Approximately 16% of the wetland contains two deep pools (at most 2.5 ft deep below normal pool) and one shallow pool (at most 1.5 ft deep below normal pool). A sinuous low-flow channel 2 feet wide and 1 foot deep connects the three pools and comprises about 18% of the wetland surface area. A shallow water area between 0-6 inches below the normal pool will encompass 36% of the total wetland surface area. The remainder of the wetland surface area (45%) will contain shallow land that will only be completely covered with water during storm events that reach the extended detention depth of 1-foot. In order to construct the stormwater wetland and vegetated waterway system, the existing ground will be excavated. Part of the road bank of Capability Drive will be graded to a slope no greater than 2/1 in order to meet the grade requirements for the wetland while maintaining 3/1 side slopes within the wetland as well as a required distance of 15 ft from any trees larger than 9-inches. Excess cut soil from the wetland will be used to fill the existing scour-hole and re-stabilize that section of the North Creek stream bank. During the project, excavated soil will be stockpiled in designated areas, and check dams with slope drains will be installed at the spillways to the two plunge pools to safely divert stormwater to North Creek. In addition, a temporary sediment dam will be installed at the exit of the scour-hole before the confluence with North Creek to help remove any remaining sediment. In order to maintain permanent stormwater wetland conditions the bed of the wetland will be sealed using bentonite clay liners at the depth of excavation, with a minimum permeability of 0.01 in/hr. The liners will be constructed by spreading bentonite onto the soil surface, vertically distributing the bentonite into the existing soil using a pug-mill mixer or other suitable mixing equipment, and then compacting the liners using a backhoe, track hoe, or other compacting equipment. A soil geotechnical consultant will be required to determine the amount of bentonite to add, the degree of compaction, and will oversee the installation of the liner. The permeability of the liner will be tested for quality assurance before construction of inner wetland features begins. A layer of topsoil will also be added over the bentonite clay liner to prevent pH spikes and provide a healthy media for vegetation. The final phase of the stormwater wetland/waterway construction will be the addition of vegetation within the wetlands and along the perimeter of the project site. A variety of native wetland species will be placed in specified areas within the wetland, grasses will be planted on the berms and vegetated waterway, and upland plants including shrubs and trees will be added surrounding the wetland boundary to further improve the riparian function of the floodplain. In conjunction with the stormwater wetland system, we proposed stream enhancements within the same stream reach. The primary stream impacts proposed are to repair, stabilize, and revegetate a massively eroded are of the stream that the wetland will protect. Additional impacts areas are in support of protecting the primary and emergency outlets of the wetland. Stream impacts in these areas will be limited to reconstruction of streambanks in the immediate area. The areas of impact are shown on the stormwater wetland plans. The impact will be temporary and limited to one side of the bank unless otherwise necessary. The total stream length impact is estimated at 20 feet at each of two locations for a total less than 100 feet. In addition, and as part of the overall project, stream and buffer enhancement has been planned for the entire 1,050 foot reach. Woody vegetation has been severely reduced along one side of the stream due to prior construction activities. The enhancement plans include invasive species control, reestablishment of native woody tree species, and bank stabilization with plantings. The enhancement work may involve a minor amount of grading to physically remove debris, invasive vegetation, or to facilitate planting efforts. No significant grading will take place in or around the stream and the stream pattern and profile will remain unaltered. It is expected that some minor bank grading may be necessary. However, this will be kept to a minimum and will be protected immediately with erosion control matting and vegetation. A final part of this project will involve the stabilization of an existing stormwater outfall upstream of this site. The outfall is currently protected by an insufficient amount of inadequately sized riprap. The area is actively eroding. The riprap will be replaced with a series of rock step pools in an attempt to stabilize the area and prevent further erosion. xx?i? Sc,C-a-) We are requesting approval of our stream and buffer enhancement plans associated with this project. The details of planned stream impacts are shown on the attached plans, and a concept plan of the enhancements is also included. This project will be a model for an alternative, minimal approach to stream improvement in an urban area. Please do not hesitate to contact us if additional information is needed. Part III, Question 11: Purpose of the Proposed Work The purpose of this project is to construct a stormwater wetland and vegetated waterway system to improve the water quality and treatment of stormwater, re-stabilize parts of North Creek's stream banks and terrace, reduce sediment transport, and to protect and improve the remaining riparian trees and vegetation along the creek. The wetland/waterway system is anticipated to reduce peak storm flows and help lower nitrogen, phosphorus, suspended sediment, organic compounds, and metal concentrations in the stormwater before it reaches North Creek, using stormwater retention and wetland vegetation and microorganisms. The wetland will serve as a stormwater BMP retrofit on Centennial Campus to improve water quality in the surrounding watershed. In association with the wetland installation, trees, shrubs, and herbaceous wetland and upland species will be planted on the terrace and floodplain in order to enhance the riparian function and aesthetic characteristics. Part V: Future Project Plans Additional stream restoration is planned for a downstream reach of North Creek south of Research Drive, approximately 1,000 feet downstream of the proposed BMP retrofit (see vicinity map). Funding has not yet been secured so construction is not scheduled. Part VI: Proposed Impacts to Waters Damage to Zone 1 exists within this section of North Creek and stream restoration improvements will be completed in cooperation with the BMP retrofit project. Part VII: Impact Justification (Avoidance and Minimization) Impacts to Zone I are primary related to stabilization of the streambank area. All attempts have been made to minimize impacts to buffer and stream areas. However, due to space constraints of the project, some temporary impacts are unavoidable. All streambank impacts will result in a significant improvement to bank stability, and buffer impact areas will be densely vegetated. It is our opinion that the site will improve water quality, and contribute to stream and buffer habitat. i t 1 A y, Figure 1: Aerial photo with location of proposed BMP (see Fig. 2 for project Figure 2: Project schematic North Creek Stormwater Wetland and Stream/Buffer Enhancement Concept Plan / NMN pNk Pa= 1 Figure 3: Stream/Buffer Enhancement Concept Plan i k ' i j t i s i I i i d Figure 5: neaacut in the scour-nose ..' - '- �' <_ �' �� •. v' 7 � �i 4' -� /� '�, �-� M,.., � �,� Aja ,; ��� a',` _ .,� +�� L T ;fir _�'. I I � �' , Figure 8: Approximate site of stormwater wetland on abandoned terrace 1 O } a N Ck- Lu cr) 2 NCSU North Creek W Stormwater Wetland Project W1 Raleigh, North Carolina NC's Section 319 NPS Program NCSU BAE Cooperative Extension J \J 41 a NS7. N9 fN ICB M IDa DAM b a Or 'IIA E z 01 1 OF8 Proposed Waterway Stream Impact/Improvement Area 1 r Ll Culvert Wingwall Plunge Pool (see details) 36" RCP NAG C350 Permanent Matting ?aPabilitY DrjvC' Plunge Pool (see details) 24" RCP Total Disturbed Area: 0.46 acres Proposed Wetland Flashboard Riser (see details) North Creek Top of Bank \ ^ 36" RCP ? GCe?? / Stream Impact/ Improvement Area 2 \:: -? \ \ Removed Trees ? AT 3 ? C4 asr, na rx aaa? 'as '? .4M TI01 Deep Pool` I i and Upland Areas \\ Shallow Land Shallow Water m m Disturbance Limits U 1r !- z 2oe8 Disturbance Limits i I 1 I I NOTES 1. The locations and extent of improvements shown are approximate. Exact locations and limits of disturbance will be identified and marked by the Project Engineer prior to construction. 2. NI trees shall be protected from impacts due to traffic and construction activities. Reparations for any damages to existing trees as a result of construction activities shall be the responsibility of the contractor. 3. Proposed contouring is shown for information only. Excavate improvements to the depths, sideslopes, and grades indicated, and as staked and directed by the Project Engineer. 4. Strip and stockpile topsail from indicated areas for replacement and fine grading. All wetlands should be excavated to a depth 4-6 inches below the finished surface to allow for topsoil replacement. 5. All sideslopes are 3:1(H.V) unless otherwise indicated. Slopes shall be covered with North American Green SC1508N or equivalent erosion control blanket. 6. NI pipe shall be installed according to the attached details and to the manufacturers recommendations. 7. Surround all disturbed areas with temporary orange safety fencing. Remove after project completion or at the direction of the Project Engineer. Planting Zone Areas \ Open Water Areas: 623.1 sf Shallow Water Areas: 1440.6 sf Shallow Land Areas: 1488.5 sf Wetland Slope/Upland Areas: 12,193 sf Total Wetland Area: 3977.5 sf Vegetated Waterway Area: 1957 sf Total Disturbed Area: 0.47 acres Zone Elevations Pools 305-307.5' Low Flow Channels 306.5-307.5' Shallow Water 307-307.5' Shallow Land 307.5-308.5' Wetland Slopes 308.5'+ Ptun a Paal 1 Spillway 309' Plunge Poal 2 Spillway 309.5' r I1 1 y J { 1 _ a aam E him ?w w ? FiST. na b q m w SU 'z d X .m om wa U s, 0 z 30F8 Vegetated Waterway Plant list no + P Re -seed all disturbed areas with 100 lbs/acre of f>!stac-6reiF+.r gross mix as directed. Spread straw mulch at a rate of 1.5 tons/acre. Shallow Water Areas Plant a total of 360 wetland plugs in the Shallow Water Area. Acquire equal quantities of each species when possible. Plant in groups and on 2 ft centers. Species List: Carex lurida Carex stricta :ns virginica Peltandra virginica Sagittana lancifolia Scnpw —n— Scapus calidw Shallow Land Areas Plant a total of 375 weUand plugs in the Shallow Land Area. Acquire equal quantities of each species when possible. Plant in groups and on 2 ft centers. Species List: Carex cnnita Eupatorium fismlosum Juncos efiww Saururus cemuw Scupu. acutw Also plant a total of 40 shrub species in Shallow Land Area. Plant these species at 6" spacing along the outer perimeter and slopes of the wetland. Cephalanthw occidentalis Hib— tttoscheutos Lobelia ca dmalis Rosa palustris Sambucus canadensis Wetland Slope and Upland Areas Plant a total of 300 shrubs/small trees at 6' spacing. Asimina triloba Corylw americana Hibi%w n—heutos Ilex verticillata Plant a total of 110 trees at 10' spacing. Celtis laevigata Diospyros %irginiana Liriodendren tulipifm Prunus serotina Shallow Land Slope and Upland Areas Legend Slap. h Upland Areas 0 Shollcw Land Shallow Water Stream knPWCvkpo..maot Area Permanent Matting RSr. xts, .rw,. zooe� t• -aa tmncr: Nc9J norm 6.6 i Sevm.atw M.tlma� O z a � a 8zM 0 z E" m U L O z U PAGE I'IO]®EE 4oF8 Cross Section A Existing Surface a? Design Surface Structure Stone, Class Boulder_ ? 1.5' MIN Thickness 1 ? ? moo Cross Section B a? \ Berm \ 20.0 H? at / ? am uo .am um mm am xm xw ssm mm aae Cross Section C rem a,a ,m mm aw ew sw uo ,m ,am ,:b iw nm m as >? mm am .mo am nb nm .,. Q ?J • r• • Cross Section D n? 120 H Cross Section E 326.00 322.00 318.00 314.00 3.0 H 31 0.00 306.00 - -__.--??-'-- 302.00 0.00 15.00 30.00 45.00 60.00 7500 90.00 112.50 VerOccl F-11 1.0 328.00 324.00 310'00 Extended Detention Depth (E1. 308.5 ft) 316.00 -..- 31200 308.00 304.00 300.00 0.00 15.00 30.00 45.00 60.00 75.00 90.00 112.50 VeAlcal Factu 1.0 Normal Pool Depth (t7. 307.5 ft) 5 sw ' s ? MT. I4& Yw b Q d U z ra fA U z 50F8 F — 18" Slope Drains (see details) i NAG SC150BN Temporary Check Dam J Check Dam (see details) (see details) Alaterials Sett rence 310 ft Silt Fence (see details) Tern orary Rock D• • r Tempora 0.2 1A 41, Silt Fence (see details) Leaene SI -Pe & UPland Meas Shallow Land Shallow Water Stream Impoct/Improvement Area Pe nent Notting 1 I I i Disturbance Limits I I Construction Entrance (see details) i NAG SC150BN Temporary Matting .S.. nA • i1 PROJECT NARRATIVE: This project is part of the Water Duality and Biological Integrity Improvement Project in North Creek/Walnut Creek R is a joint venture between North Carolinas Section 319 NPS Program and N.C. State University. The goal of this project is to construct an innovative stormwater control enhancement to establish a natural corridor through an urban setting while effectively treating urban stormwater pollutants. The proposed wetland and vegetated swale system will not only treat stormwater, but provide improvement in flood control and enhance native wildlife habitat and ecological diversity. The project involves bulk earth movement, fine grading, installation of piprig, final grading, and planting. GENERAL CONSTRUCTION SEQUENCE: 1. Locate and set up an appropriate site for stockpile of materials and storage of equipment 2. Install all erosion control measures including construction entrance. 3. Remove downed trees and debris from eroded channel. 4. Construct plunge pools, check dams and slaps drains at culvert outlets. 5. Repave and stockpile topsoil. 6. Begin mass grading operations. 7. Install outlet pipes/structures in wetland. 8. Replace topsoil and complete fine grading. 9. Implement planting plan. 10. Request a completion inspection from the Project Engineer. GRADING AND EROSION CONTROL NOTES: 1. All erosion control must be set-up and inspected prior to commencement of grading operations. 2. Strip and stockpile topsoil in indicated areas for use as substrate in wetlands. 3. Culverts shall be reinforced concrete pipe or equivalent. 4. All elevations shown on the Project Drawings are relative. Utilize benchmarks as directed by the Project Engineer. Grading stall be met within a tolerance of O.1' 5. Stabilization measures shall be initiated as soon as practicable in portions of the site where construction activities have temporarily or permanently ceased, but in no case more than fourteen (14) days after work has ceased, unless activity in that portion of the site will resume within twenty-one (21) days. 6. NI sediment and erosion control devices shall be inspected every seven (7) days or after each rainfall occurence that exceeds one-half (1/2) inch. Damaged or ineffective devices shall be repaired or replaced, as necessary. 7. NI erosion control devices shall be properly maintained dump oil phases of the construction until the completion of all construction acitivities and all disturbed areas have been stabilized. Additional control devices may be required during construction in order to control erosion and/or off-site sedimentation. All temporary control devices shall be removed once construction is complete and the site is stabilized. 8. The contractor must take necessary action to minimize the tracking of mud onto the paved roadway construction areas. The contractor shall daily remove mud/soil from pavement as may be required. 9. Temporary diversion berms and/or ditches will be provided as needed during construction to protect work areas from upslope runoff and/or to divert sediment laden runoff water to appropriate traps or stable outlets. 1. Outlet 6 Inlet inspection/minor maintenance. Once per month (after every 1-1.5' storm). Clean out tresh/debrls from structures and trash rocks. 2 Periodic trash removal. As needed. Clean trash from wetland interior as needed for wetland aesthetics. 3 Destroy muskrat hales (do this when doing #2 above). 4. Do not mow planted wetland sideslopes. The tops of berms and backslopes may be mowed at the City's discretion. ?b mow zone' signs are recommended at a minimum 10' foot distance from protected areas. 5. Invasive Species Removal. Once per year. Only necessary for cattail removal or to improve site aesthetics. in Dashboard risen. .-,..,?_..-?.:....,?.. ......._....,..._, 7, Forebny Flspectbn/dlppkg Once every 3-5 years (or as needed). Excavator or similar equip may be needed. Due to the developed nature of this watershed, this activity may not ever be necessary. CONSTRUCTION ENTRANCE N.TS 50' MN. BUT SUFFICIENT TO KEEP SOMENT ON STE E»STMa 057B E WASHED SRNE 10 CE ROADWAY r PLAN EASTING ROADWAY NOTES 1. PUT SILT FENCE OR TREE PROTECTION FENCE UP TO ENSURE CONSTRUCTION ENTRANCE IS USED. 2 IF CONSTRUCTION ON THE SITES ARE SIKH THAT THE MUD IS NOT REMOVED BY THE VEHICLE TRAVEL- 15' OR WIDTH OF ND OVER THE STONE, THEN THE TIRES OF THE WEST EOIAPMEHT, VEHOLES MUST BE WASHED BEFORE ENTFRNO THE WHICHEVER !5 PUBLIC ROAD '7+EA'FR. 1 IF A PROJECT CONTINUES TO PULL MID AND DEBRIS ON TO THE PUBLIC ROAD. THE GOVERNING AUTHORITY WILL CLEAN THE AREA AND INVOICE THE FiNANCIALLY RESPONSIBLE PERSON AS INDICATED ON THE FINANCIAL RESPON98UTY FO I 376 MN 15' MN. NEW CONSTRUCTION tY MN. 6' INT. 7FA FABRK UWER STONE LARGE PLUNGE POOL PROFILE Flared end-section Compost earth material into gap and Class A stone may be used as needed to fill boulder gaps. Iddroond rip-mop and fill malarial may be regired around footer radm for proper embedment. h RST. all, A- 4) Dr t5 w 0 Z 70F8 SEDIMENT FENCE N.T.S. 1. CONSTRUCTION SPECIFICATIONS 1. Mark the intended fine of placement for the sediment fence an the ground at the site as outlined on the plan. 2. Construct the sediment fence of standard strength or extra strength synthetic flier fabric. Do not use fabrics that are quickly biodegradable. Synthetic fitter fabric shotAd contain ultraviolet ray inhibitors and stabilizers to provide a minimum of 6 months of expected usable construction life at a temperature range of O to 120 F. Ensure that the height of the sift fence does not exceed eighteen (16) inches above the ground. 3. Construct the filter fabric from a continuous roll cut to the length of the barrier to avoid joints. When joints are necessary, securely fasten the filter cloth only at a support post with overlap to the next post. For reinforcement of fitter fabric, use wire fence with o minimum fourteen (14) gauge and a maximum mesh spacing of six (6) inches. 4. Support filter fabric: with wire mesh fastened securely to the upslops of the poste using either tie wires or heavy duty wire staples at least one (1) inch long. Extend the wire mesh to support the bottom of the trench. S. Space posts a maximum of eight (8) feet apart. Support should be driven securely into the ground to a minimum depth of eighteen (18) inches. Ensure that the posts for sediment fences are 1.33 Ib/lineor ft steel with a minimum length of four (4) feet. Make sure that steel posts have projections to facilitate fastening the fabric. 6. Excavate a trench approximately far (4) inches wide and eight (8) inches deep a" the proposed line of posh and upslope from the barrier. 7. Backfill the trench with compacted soil or gravel placed over the filter fabric. 8. Do not attach the filter fabric to axis" tress. If. MAINTENANCE 1. Fence posts which have become dislodged or displaced for any reason shall be Immediately replaced. 2. Tears in the fabric of the fencing shall likewise be repaired to maintain the intended function of the sift fence. 3. The orooer function of the sediment fence is to be maintained III. REMOVAL 1. Confirm with the Southern Pines Public Wart Department that removal of the fence is acceptable. 2. Remove the sediment fence and smooth the disturbed area to blend with the surrounding topography. t-- Oampactsd e1 ?xterscn of fabric and wire into the trench Fitw Fakrk: / / ? e4e CHECK DAM/SEDIMENT TRAP N.T.S. 1, CONSTRUCTION SPECIFICATIONS 1. Place stone to the lines and dimensions shown in the plan on a filter fabric foundation. 2. Keep the center stone station at least nine (9) inches below natural ground level where the dam abuts the channel banks. 3. Extend the stone at least one and a half (1.5) feet beyond the ditch banks to keep overflow water from undercutting the dam as it re-enters the channel. 4. Use four (4) to fifteen (15) inch stone (NCDOT doss 1 or class B erosion control stone). B. MAINTENANCE 1. Inspect channel for damage after each runoff event. 2. Remove sediment accumulated behind check dam as needed to =t damage to channel vegetation, allow the channel to drain through the stone check dam, and prevent large fors from carrying sediment over the dam 3. Add stoop to the dam as needed to maintain design height and cross section. 2 Ft cwt Fred .xN Nara(: NCDOT 0a. 1 a Clore B a.wm mod tar r tl,kk NGDOT (n*) w d 7 iihi pA re elem. \ 150RAE VOLUME ) a Fr. dhaw i (ova) ?q accts X-SECTION -idr-1 under eastsrvan aver taw ?q a1e4 M ?F- STONE SECTION Lkne.d W 50 ace. Bow Ye 7 • Den hty,t ! i, mmt • aoel fwbe m don • Lag .* cwt W lies, Bow dgih *.M- & low d4 hw" r $adtler TYPICAL TEMPORARY ROCK DAM NRCD 6.63 Na SCALE NaIF: Rule Dan Mk eat be to dW h ew a tr.- F ASHBOARD RISER DETAIL N.T.S EL Top of Rlser - 3043.5 Rhr Dkxn - 5 ft Fill bottom with 1.5 R of concrete EL e.Ltam Of Roo . 299.0 It t PROFILE b1EW Slope Drain and Inlet Detail Clerk don awn Wet 2' ,in IIOY d Plastic corrugated pipe oer - - - 4* ran x ?y.5' rani' -1. (y ` Ouu.t pip" Yale oll pys -.W- wofw6ght and secure ear that the Join will not separate ei MEr DETAIL use. 309.5 m - Top of Embmkmrd EL Outlet MV. =300.5 R Pips barrel Ok- . 3 ft PLAN NEW Fkmhboad Rf- Pips Lint RISER SCHEMATIC h ?W ts RST. ne, v,ee b A a O) y ? w +? u (112.4 4 be +k k m U o? M Qi {i U ? J o z 80F8 Stormwater Outfall Retrofit Schematic C y 349.00 i 348.00 _ i 347.00 _ J i 346.00 343.00 344.00 343A0 -J 1 1 342.00 -? 341.00 _ y i i 0.00 4.00 8.00 12.00 1&00 20.00 28.00 32.00 40.00 44.00 48.00 2 01Vi O'OS 0'11 w A: 7. c..tir .. r.; A.-t a ?.uawa?.?o?uia? , junl uoio,lo4-a6an lood uag4.J'03 ..r ' u04.S N2l-6 lann AD wnipa ft, (Al.1119D11DAD /M SaIJDA aZIS) y:r Aa o oo j /m s>iood da?-S J2x,2x,2 ?v!.> • 0018 JbC'CTC 'nui 'Aln3 dW3 J,(sv 0,01 food daq-S I-on?-dauo3 2 3?S ;-? t3id N -] m m m -, ? X x O r N• 0 3 O p p J. Lo LO (ND (D a a --? O o x rt (D X W J 0 tp 0 ? S - 7 ? O ? 0 (D n 7 p p C 7 M ? S (D W ? p - p ? O (D S Lo Z 7 ? O 7 m S f O m (D X- W Z O o J ? A C) U) A C CD -0 -. O o D n O (D - O -l ?Q Q 0 ( 3. o CD 0 o co 0 O OC, z 0 n cD CD O r+ O Q ? '+ CD O Q Q Z Q cu r*. ?. < cD CD O w `ri rn cD 0 Q -Tl Crl O N n O n N Q Re: Xfer of Funds Subject: Re: Xfer of Funds From: Barbara Palzewicz <Barbara.Palzewicz@ncmail.net> Date: Tue, 26 Sep 2006 08:48:07 -0400 To: Laurie Dennison <laurie.j.dennison@ncmail.net> Good Morning Laurie, Yes it finally got resolved. I entered into NCAS on 9/21. Thanks for all your help. If you need anything else please let me know. Have a great day. Barb Laurie Dennison wrote: Hi Barbara - Did the $200 from NC State get transferred successfully after all our running around between Ruth Willis & Gwen Rowland? What date did it get posted? Thanks! Laurie Dennennison Administrative Assistant DENR-DWQ Wetlands/401 Unit Barbara Palzewicz <Barbara.Palzewicznncmail.net> Cash Management - Accounting Tech III Environment and Natural Resources Controller's Office 1 of 1 9/26/2006 8:48 AM Re: IGO Subject: Re: IGO From: Laurie Dennison <laurie.j.dennison@ncmail.net> Date: Thu, 21 Sep 2006 13:02:55 -0400 To: Barbara Palzewicz <Barbara.Palzewicz@ncmail.net> I've been in touch with Ruth Morris & she is going fax me copy of the invoice to see if I figure out what it is for. At this point, I'm totally in the dark as to whether it is for a 401/Wetlands permit or what. I'll let you know. Laurie Dennison Adminstrative Assistant DENR-DWQ Wetlands/401 Unit Barbara Palzewicz wrote: I have received the following IGO from NCSU. I believe it is yours? How would you like it deposited ( Budget code, company, account and center) Thanks, Barb AK22 CASH MANAGEMENT CONTROL SYSTEM 12:14:83 09/21/06 SEQUENCE NO: 90426 REQUEST FOR TRANSFER OF FUNDS PAGE: 002 00714 BETWEEN BUDGET CODES STATUS: PASSED DATE: 09 21 06 ACTION: CHANGE REFERENCE NO.: S090 BUDGET CODE (TRANSFER FROM): 00714 REFERENCE NO.: OR STIF CODE(TRANSFER FROM): 5000714 DEPARTMENT CODE (TRANSFER TO): 4300 ITF-NC STATE UNIV DEPT OF EHNR TOTAL AMOUNT: *200.00 * TRANSFER TYPE: 1 EXPLANATION OF TRANSFER: 01 *WELTANDS UNIT PERMIT FEE NEUSE CU-03020201 FOR FURTHER INFORMATION CONTACT RUTH WILLIS AT 515-7809 03 04 _ 05 _ 06 _ 07 _ ADD PASS PHA-RUTH MORRIS 09/21/06 10:44 SUBMITTED BY PHA-RUTH MORRIS WILL PHA-RUTH MORRIS 09/21/06 10:44 EXT= PF= _ DATE= MM DD SEQ= DISB/STIF = BRNCH= ENTER EXPLANATION OF TRANSFER IF NEEDED PRESS PF3 KEY TO VIEW ASSIGNMENTS OF ALL PF KEYS 02 1 of 1 9/21/2006 1:03 PM IGO Subject: IGO From: Barbara Palzewicz <Barbara. Palzewicz@ncmail. net> Date: Thu, 21 Sep 2006 12:24:57 -0400 To: laurie.j.dennison@ncmail.net I have received the following IGO from NCSU. I believe it is yours? How would you like it deposited ( Budget code, company, account and center) BUDGET CODE (TRANSFER FROM): 00714 REFERENCE NO.: OR STIF CODE(TRANSFER FROM): 5000714 DEPARTMENT CODE (TRANSFER TO): 4300 Thanks, Barb AK22 CASH MANAGEMENT CONTROL SYSTEM 12:14:83 09/21/06 SEQUENCE NO: 90426 REQUEST FOR TRANSFER OF FUNDS PAGE: 002 00714 BETWEEN BUDGET CODES STATUS: PASSED DATE: 09 21 06 ACTION: CHANGE REFERENCE NO.: 5090 ITF-NC STATE UNIV DEPT OF EHNR TOTAL AMOUNT: 200.00 TRANSFER TYPE: 1 EXPLANATION OF TRANSFER: 01 WELTANDS UNIT PERMIT FEE NEUSE CU-03020201 02 FOR FURTHER INFORMATION CONTACT RUTH WILLIS AT 515-7809 03 04 05 06 07 ADD PHA-RUTH MORRIS 09/21/06 10:44 SUBMITTED BY PHA-RUTH MORRIS WILL PASS PHA-RUTH MORRIS 09/21/06 10:44 EXT= PF= - DATE= MM DD SEQ= DISB/STIF = BRNCH= ENTER EXPLANATION OF TRANSFER IF NEEDED PRESS PF3 KEY TO VIEW ASSIGNMENTS OF ALL PF KEYS Barbara Palzewicz <Barbara.Palzewicz@ncmai1.net> Cash Management - Accounting Tech III Environment and Natural Resources Controller's Office I of 1 9/21/2006 12:57 PM SEP-21-2006 THU 03:59 PM 09/19/2006 12:90 919-515.6307 EHSC P. 02 PAGE 02 NorG+ :y01iaH State uAlvdrally lea :sndar: NCSU water Qullty Group uoiwr ;iry :nd u r on?tltuent :xti utirxi of dtc Nparhnser Of Bblodai and A&1 0*11ra1 AtBlaeain6 Untvr ally of Nu h Cuufi: a Coil age of Agriculaufei and Lilo Sciences Ra?gb, NC 27695 919.51$.8240 (phone) 919.515.7448 (ftc) Re: North Creek Stormwater Wetland and! ;ream Entrancement To whom it may concern, NC State Vmiversity 'Hater Quatitu Gro• tp is proposing the conSIZUctiou Of n stotmwater wetland on NCSU Centennial Campus. The wetland is a badl I needed retrofit to go existing storm Crain systeal. The drain outlet, are curremly causing excessive erosion and dr stabilizing stream banks. The retrofit will route watars through a stable channel into a stormwis r wetland °ar trot anent. Due to the urban coasaaints of the area, impacts are proposed to the riparian buffer and strearrrbatik: in the vicinity of the wetland. A full set of plans detailing these impacts and Author explaining the project is itichtded v ith this package. The total disturbed area for the project will be lass than 1 acre. In addition to the wetland, the assoa:iated : treaai reach is proposed for enhancement The enhancement will include repair and stabilization of streatnbeaks in the vicinity of the wetland, and a var-M of activities along the project i reach. The primary proposed ar&i%eemeat activities will include invasive species removal and native species introductioa and management We propo; a to utilize some bank stabilisation measures as necessary, which will Include minor grading, protection with ero: im control fabric, sad revegetadom The projea Is being flurded by the'JSDA and the NCDENR 319 program. We 'relieve that the f9uliy implemented project will be an example of how storm vattr practices, and a properly managed urban riparian buffer zone can improve water quality turd aesthetic! In a c onstrained urban setting. A graduate st.tdent renearch'project is underway j for the site, which should provide i0ormat,on on the benefits of the project. Pleasd accept our proposal and pomiit ap )lIc0ou package for the alto. The permit is supported by and submitted through our NCSU Storinwater Pro.irom. E lease feel free to contact the with any questions you may have. My phone number is given above.and my ems I is jea, spooner@ncsu.edu River Basin: Noun CU: 03020201 f 14-digit HU: 03020201090010 County: Wake Municipality: Raleigh Receiving Water: Lake ttaleigb, W;ilnut (:reek; 03-04-02 i Thank you, WOW Vermentku l8itiiaia kYO a Rwelvedd ??? vwiAl.7efVIC6e Re Gow CWIW A*ova 9 Jean Spooner, PIED Group Leader. Extension Specialist Employment and ptogr= oppotaurides are :6m:d t :, all p4o016 tajatdleia octave, oolor, nuional origin, Bandar, set or d1sabittry Nardi Carolina Suave Univenity, North Ceres inn A& r State UalveAltY. U,6. C#&raoent of Agricntt ", and local SwerammU voopmadng. SEP-21-2006 THU 13:59 TEL:9197336893 NAME:DWQ-WETLANDS P. 2 SEP-21-2006 THII 03:59 PM P. 01 North Carolina Cooperative Extension Service College of Agriculture and Life Sciences NCSU Wratef flunlity Gmup FAX TRANSMITTAL Department of Biological and Agricultural Engineering Campus Box 7637 Raleigh, NC 27695 919.515.3723 (phone) 919.515.7446 (fax) DATE; FAX MESSAGE TO:_ /So FAX NUMBER: -J3 Z 5 5 3 NUMBER OF PAGE:i., INCLUDING COVER SHEET: FROM: D,A4A MESSAGE: 4 CSC-c 1eaAlic SCr QyE,.) C E.A?-_ 9oY aZ Employment and program opportolities are offered to all people regardless of race, color, national origin, gender, age or disability. North Carolina State University, h )M Carolina A&T State University, U.S. Department of Agriculture. and local govenunents cooperating. SEP-21-2006 THU 13:59 TEL:9197336893 NAME:DWQ-WETLANDS P. 1 SEP-21-2006 THU 03:59 PM 09119/2006 12:00 919-515-5307 P. 03 E HSC V t9 a MZ , A G pre-Construction Notification (PCN) Application Form For Section 404 and/or Section :.0 Nationwide, Regional and General Fermits, Seetioh 401 General Water (tuality C,irtifi+ations, and Riparian Buffer and Watenhed Buffer Rules This form is to be used for projr ets q xalifjping for any of the U.S. Array Corps of Engineers' (USACE) Nationwide, Regional or Gener d Pea mits as required by Section 404 of the Clean Water Act and/or Section 10 of the Rivers and Earbo:s Act, and for the North Carolina Division of Water Quality's (DWQ) associated General 401 Wat ar Qtuality Certifications. This form is also to be used for any project requm' 'ng apprcval under any'tUparian Buffer Rules implemented by the N. C. Division of Water Quality. This farm should not 1,5 use3 if you are requesting an Individual 404 Permit or Individual 401 Water Quality Certifi(% ion. Tie USACE Individual Permit application form is available online at www:saw.usace. arrny.a wetla» ds/Pi :rmits.html. The USACE is the lead regulalory itoency. To review'the requirements for the use of Nationwide, Regional or General permits, wid to determine which permit applies to your project, please go to the USACE website at www.saw.v!,we., ands/ or contact one of the field offices listed on page 3 of this applies: non. The websitc also lists the responsible project manager for each county In North Carolina and provide s additional information regarding the identification and regulation of wetlands and water:, of the U1. The DWQ issues a correspond ng Certification (General or Individual), and cannot tell the applicant which 401 CeTtifieati= will apply until the 404 Permit type has 'peen determined by the USACE. Applicants are encouragr.3 to visit DWQ's 401/Vietlands Unit website ' at httn://h2o_eur.state.no.us/nowetl?nAg to read about current requirements for the 401 Water Quality Certification Program and to deterr line whether or not Riparian Buffer Rules are applicable. The applicant is also advised to read the f all text of the 06noral Certification (GC) matching the specific 404 Permit requested. In some cases, w itten approval for General Certifications is not required., provided that the applicant adhsres to all cone itions of the OTC. Applicants lacking access to the Internet should contact DWQ's Central Office k Ral:igh at (919) 7331786. Trout Waters Coordination - Spe dal coordination with the North Carolina Wildlife Resources Commission (NCWKC) is regiirei for projects. occurring in any of North Carolina's twenty-five counties that contain trout waters. I,1 such cases, the applicant should,contact the appropriate NCV= regional coordinator (listed by ( Dung; on page 4 of this application) prior to submittal of the application. Page 1 of 13 SEP-21-2006 THU 13:59 TEL:9197336893 NAME:DWQ-WETLANDS P. 3 North Carolina State University is a land- Office of Finance and Business Grant university and a constituent institution Business Division Of The University of North Carolina s? o? haler hftp://www2.ncsu.edu/ehs/ October 10, 2006 Ms. Laurie Dennison NC Department of Environment & Natural Resources 401 Oversight/Express Review Permitting Unit 1650 Mail Service Center Raleigh, North Carolina 27699-1650 Action Reference: Karoly, Cyndi. Request for Additional Information Letter Dated October 3, 2006 Subject: NC State North Creek Stormwater Wetland DWQ Project # 06-1445 Ms. Dennison: Campus Box 8007 Raleigh, North Carolina 27695-8007 Director 919.515.4238 Environmental Affairs 919.515.6859 Industrial Hygiene 919.515.6860 Health and Safety 919.515.6858 Radiation Protection 919.515.2894 (Fax) 919.515.6307 I received a letter from your office on October 9, 2006 requesting the following additional information. Please indicate all buffer impacts on the site plan. 2. Please indicate the location of the protected buffers as overlays on the site plan, clearly identifying Zone 1 and Zone 2. 3. Please locate all isolated or non-isolated wetlands, streams and other waters of the State as overlays on the site plan, Attached are updated site plans that include the information requested above. If you require additional information or have any questions, please do not hesitate to contact me at 515-4030. Sincerely, a n Ann Rowland Stormwater Program Manager Y attachment(s) - -117 -////- - - - -///- - - Buffer Zone 1 (Protected) Buffer Zone 1 (Project enhancement and impacts) I I '1'1'1'1'1'1 I I I I'I'I'I'I'I'I'lll'lll I• . IIIIIIIIIII IIIIIIIIIII I IIIIIIIIIIIII . IIIIIIIIIII II' IIIIIIIIIIIIII ,IIIIIII?I?I?I?I?I?IIIIIIIIIII IIIIIIIIIIIIII?I?I?IIIIIII?I?I? ?. III'I'I'I'I'I'I'I'I'I'I'I'Illll'I' Iillllllllllllll IIIIIIIIIIIIIIIII I I I I I I I I I?III?IIIII?IIIIII I IIII?I?? Capabilit Y Qri?a L _Buffer Zone 2 (Project enhancement and impacts) Buffer/Stream Zone Area Impacted Buffer Zone 1 6,977 s q. ft. Buffer Zone 2 11,775 s q. ft. Stream Impact 1 0.006 acres Stream Impact 2 0.004 acres Stream Impact/Improvement Area 1 North Creek it l 1111111 III ?• ,?. 4( x Buffer Zone 2 (Project enhancement and impacts) Top of Bank • I IIII e I .• ?C I IIIIIIIIII?I?I I • ? IIIIIIII r . \O; I I I I I I I I I I I I I I' I l l ' ?, IIIIIIII i. ' 'Illlillli'I'lllllllll ? di II I IIIIIIIIII ? ? IIIII l`,' Note: Project impacts to Zone 1 are primary related to stabilization of the streambank area. Currently, Zone 1 consists of a badly eroding gully from a stormwater outfall and a degrading stream bank. Due to space constraints of the project, some temporary impacts are unavoidable. All streambank impacts will result in a significant improvement to bank stability, and buffer impact areas will be densely vegetated. Buffer Zone 1 (Protected) Ililil lil!IIIIII I . IIII1?1?1111111?1? . IIII111111111 III?I I'I ?•,, ?IIIIIII I ??"•'A ?I? ???.????? IIIIIIII t?!,.? ?' e IIII'I '?.`?? 111111 legend Buffer Zone 1 Protected Buffer zone 1 Impacted F? Barter Zorb 2 Impacted e k t ? Impoct/Improvernm* Protected Perennial Stream Stream Impact/ Improvement Area II ,oc3&4.dJ b Cd or U Z M 0 Z U z bw a 3 RST. nA of ?0F w'QTFhjQ Michael F. Easley, Governor `4 G William G. Ross Jr., Secretary r North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality October 3, 2006 DWQ Project # 06-1445 Wake County CERTIFIED MAIL: RETURN RECEIPT REQUESTED Mr. Charles Leffler Campus Box 7201 Raleigh, NC 27695 Subject Property: NC State North Creek Stormwater Wetland North Creek [030402, 27-34-(4), C, NSW] REQUEST FOR MORE INFORMATION Dear Mr. Leffler: On September 7, 2006, the Division of Water Quality (DWQ) received your application dated August 31, 2006, to impact 37 linear feet of perennial stream, and 6,977 square feet (ft) of protected Zone 1 Neuse River basin riparian buffer and 4,798 square feet (ft) of protected Zone 2 Neuse River basin riparian buffer to construct the proposed stormwater wetland. The DWQ has determined that your application is incomplete and/or provided inaccurate information as discussed below. The DWQ will require additional information in order to process your application to impact protected wetlands and/or streams on the subject property. Therefore, unless we receive five copies of the additional information requested below, we will have to move toward denial of your application as required by 15A NCAC 2H.0506 and will place this project on hold as incomplete until we receive this additional information. Please provide the following information so that we may continue to review your project. Additional Information Requested: 1. Please indicate all buffer impacts on the site plan. 2. Please indicate the location of the protected buffers as overlays on the site plan, clearly identifying Zone 1 and Zone 2. 3. Please locate all isolated or non-isolated wetland, stream, and other waters of the State as overlays on the site plan. Please contact the DWQ within three weeks of the date of this letter to verify that you have received this letter and that you remain interested in continuing to pursue permitting of your project and will be providing the DWQ the requested information at a later date. Please contact me in writing and Eric Kulz of the DWQ Raleigh Regional Office. If we do not hear from you within three weeks, we will assume that you no longer want to pursue this project and we will consider the project as withdrawn. This letter only addresses the application review and does not authorize any impacts to wetlands, waters or protected buffers. Please be aware that any impacts requested within your application are not authorized (at 401 Oversight/Express Review Permits Unit 1650 Mail Service Center, Raleigh, North Carolina 27699-1650 2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604 Phone: 919-733-1786 / FAX 919-733-6893 / Intemet: htto://h2o.enr.state.nc.us/ncwetlands N r hCaro na Naturally An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper Mr. Charles Leffler Page 2 of 2 October 3, 2006 this time) by the DWQ. Please call Ms. Cyndi Karoly or Mr. Ian McMillan at 919-733-1786 if you have any questions regarding or would like to set up a meeting to discuss this matter. Sincerely, Cyndi Karoly, Supervisor 401 Oversight/Express Review Permitting Unit CBK/ijm cc: Eric Kulz, DWQ Raleigh Regional Office USACE Wilmington Regulatory Field Office File Copy Central Files Filename: 061445NCSUNorthCreekSW Wetland(Wake)On_Hold North Carolina State University is a land- Grant university and a constituent institution Of The University of North Carolina An tqual Upportumty/Amn .? http:lhvww2.ncsu.edu/ehs/ @ ?i?,a?Pr Mana9e?` S E P 5 ZOU6 *VLAf>tQ4 AM ST EQW#*"A WW" September 20, 2006 Ms. Laurie Dennison NC Department of Environment & Natural Resources 401 Oversight/Express Review Permitting Unit 1650 Mail Service Center Raleigh, North Carolina 27699-1650 Reference: Karoly, Cyndi. Request for Additional Information Letter Dated September 7, 2006 Subject: NC State North Creek Stormwater Wetland DWQ Project # 06-1445 Ms. Dennison: office of Finance and Business Business Division Campus Box 8007 Raleigh, North Carolina 2769548007 Director 919.515.4238 Environmental Affairs 919.515.6859 Industrial Hygiene 919.515.6860 Health and Safety 919.515.6858 Radiation Protection 919.515.2894 (Fax) 919.515.6307 I received a letter from your office via e-mail on September 13, 2006. Below and attached is the additional information requested. 1. Section I. Processing Please state which Permit (Nationwide, Regional, or General) number you intend to use. I have contacted Thomas Brown with the US Army Corps of Engineers. He has indicated that a Nationwide Permit #13 would be appropriate for the subject project 2. DWQ requires the name of the individual shown as °Owner/Applicant" to set up the project I have spoken with Ian McMillan and he suggested the following information in addition to Mr. Charles D. Leffler, Vice Chancellor of Finance and Business. North Carolina State University Office of Finance and Business Holladay Hall B, Box 7201 Raleigh, North Carolina 27695 3. Applicant/Agents Signature page missing. Please see attached page with Mr. Leffier's signature and date signed. Laurie Dennison Page 2 September 20, 2006 4. Water Body information not stated. Section III Project Information, Item 7. Please see attached page (6 of 13) from the permit application previously submitted. 5. Incorrect and/or missing wetland, intermittent perennial stream and/or buffer impacts. Please see attached pages (8 of 13), (11 of 13) and (12 of 13) from the permit application previously submitted. 6. Lack of permitting fee. It is my understanding that the payment has been made by electronic transfer. The invoice number is Neuse CU:03020201with a sequence number of 90426. If you have any questions regarding the electronic transfer, please contact Bonnie Kurth at 515-8239. If you require additional information or have any questions, please do not hesitate to contact me at 513-4030. Thank you for your time. Sincerely, G n Ann Rowland Stormwater Program Manager attachment(s) XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). Applicant/Agent's Signature (Agent's signature is valid only if an authorization letter from the applicant is provided.) Mr. Charles A Leffler, Vice Chancellor for Finance and Business ?s (3fI or. Date Page 1 of 1 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: North Creek Constructed Stormwater Wetland with Vegetated Waterway System & Stream Enhancement (stream reach between Varsity Drive to Research Drive) 2. T.I.P. Project Number or State Project Number (NCDOT Only): 3. Property Identification Number (Tax PIN): 079352262 4. Location County: Wake Nearest Town: Raleigh Subdivision name (include phase/lot number): N/A Directions to site (include road numbers/names, landmarks, etc.): From downtown Raleigh, take Western Blvd west and make a left on Avent Ferry Rd. Turn left onto Varsity Drive (entrance to Centennial Campus) and a right onto Capability Drive. Project site is on immediate left at bottom of road bank. 5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 35° 46' 28" ON 78° 40' 46" °W 6. Property size (acres): Project site is less than 1 acre 7. Name of nearest receiving body of water: North Creek, tributary to Lake Raleigh 8. River Basin: Neuse (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.ne.us/admin/maps/.) 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: See attached Page 6 of 13 permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. 1. Provide a written description of the proposed impacts: See attached 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding. Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within 100-year Floodplain ( es/no) Distance to Nearest Stream (linear feet) Area of Impact (acres) Total Wetland Impact (acres) 0 3. List the total acreage (estimated) of all existing wetlands on the property: none 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. To calculate acreage. multiply length X width. then divide by 43,560. Stream Impact Number indicate on ma) Stream Name Type of Impact Perennial Intermittent? ? Average Stream Width Before Impact Impact Length (linear feet) Area of Impact (acres) 1 North Creek Stream stabilization Perennial 11 25 .006 2 North Creek Stream stabilization Perennial 14 12 .004 Total Stream Impact (by length and acreage) 37 .010 Page 8of13 that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): N/A Amount of buffer mitigation requested (square feet): N/A Amount of Riparian wetland mitigation requested (acres): N/A Amount of Non-riparian wetland mitigation requested (acres): N/A Amount of Coastal wetland mitigation requested (acres): N/A IX. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes ® No ? 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? Yes ® No ? 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multipliers. Zone* care act Multiplier Required feet) s 1 6,977 3 (2 for Catawba) N/A Page 11 of 13 1 2 . 4,798 1 1.5 N/A Total I 11,775 I I 1 * Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. No impervious acreage will be added to the site during this project. XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. N/A XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules? Yes ? No Is this an after-the-fact permit application? Yes ? No ? XIV. Cumulative Impacts (required by DWQ) Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes ? No ? If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: XV. Other Circumstances (Optional): Page 12 of 13 ?QY v.' I' C?n Michael F. hasiey, Governor ?0 6 William G. Ross Jr., Secretary r North Carolina Department of Environment and Natural Resources O 'C Alan W. Klimek, P.E. Director Division of Water Quality September 7, 2006 DWQ Project # 06-1445 Wake County CERTIFIED MAIL: RETURN RECEIPT REQUESTED NC State University Attn: Charles Leffler Campus Box 7201 Raleigh, North Carolina 27695 Subject Property: NC State North Creek Stormwater Wetland Water Quality Certification and Fee ® REQUEST FOR MORE INFORMATION ® PERMITTING FEE MISSING/INCORRECT ? RETURN OF APPLICATION PACKAGE Dear Mr. Leffler: On September 7, 2006, the Division of Water Quality (DWQ) received your application dated August 31, 2006 for the above referenced project. The DWQ has determined that your application was incomplete and/or provided inaccurate information as discussed below. The DWQ will require additional information in order to process your application to impact protected wetlands and/or streams on the subject property. Therefore, unless we receive five copies of the additional information requested below, we will have to move toward denial of your application as required by 15A NCAC 2H.0506 and will place this project on hold as incomplete until we receive this additional information. Please provide the following information so that we may continue to review your project. Additional Information Requested: ® Water Quality Certification, See I. Processing, Item 2.. Please state which Permit (Nationwide, Regional or General) number you intend to use. You may want to contact the U.S. Army Corps of Engineers (USAGE) to determine which permit they will allow you to use. ? DWQ requires the name of an individual shown as "Owner/Applicant" to set up the project. ? The PCN Application failed to contain the Applicant/Agent's Signature and Date. See last page of application. (Agent's signature is valid only if an authorization letter from applicant is provided). ? Water Body information not stated. See III Project Information, Item 7. ? Incorrect and/or missing wetland, intermittent-perennial stream and/or buffer impacts. DWQ is unable to review this project without noted or corrected impacts reflected. 401 Oversight/Express Review Permitting Unit 1650 Mail Service Center, Raleigh, North Carolina 27699-1650 2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604 Phone: 919-733-1786 / FAX 919-733-6893 / Internet: httn;//h2o enr.state.nc us/ncwetlands NV Caro na atura?ly An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper M Lack of permitting fee. Please note that beginning January 1, 1999, the N.C. General Assembly passed legislation requiring payment of a fee for all 401 applications. The fee for applications is $200 for projects impacting less than an acre of wetland and less than 150 linear feet of streams. For projects impacting one or more acres of wetland or 150 or more feet of streams, the fee is $475. ? Incorrect permitting fee amount. Please see above item. Your check # for $ is herein enclosed for fee correction. DWQ does not retain any payment unless it is in the correct amount. ? A request for a modification of an issued permit requires re-submission of five (5) application sets and appropriate fee. We have herein returned your modification request. ? Application was missing pages or sections of information. See Other section below. ? OTHER: Please contact the DWQ within three weeks of the date of this letter to verify that you have received this letter and that you remain interested in continuing to pursue permitting of your project and will be providing the DWQ the requested information at a later date. Please contact this office in writing. If we do not hear from you within three weeks, we will assume that you no longer want to pursue this project and we will consider the project as withdrawn. This letter only addresses the application review and does not authorize any impacts to wetlands, waters or protected buffers. Please be aware that any impacts requested within your application are not authorized (at this time) by the DWQ. Please call Mr. Ian McMillan or Ms. Cyndi Karoly at 919-733- 1786 if you have any questions regarding or would like to set up a meeting to discuss this matter. Sincerely, CU Cyndi Karoly, Supervisor 401 Oversight/Express Review Permitting Unit CBK/Ijd cc: USACE Raleigh Regulatory Field Office File Copy Central Files Filename: 061445NCStateNorthCreekSW Wetlaod(Wake)_Hold_NW#_Fee DWQ # 06-1445 NC State North Creek SW Wetland Subject: DWQ # 06-1445 NC State North Creek SW Wetland From: Laurie Dennison <laurie.j.dennison@ncmail.net> Date: Mon, 11 Sep 2006 08:36:22 -0400 To: charles_leffler@ncsu.edu Please see attached the Division of Water Quality's request for more information related to your recent application. Please note that this message is being forwarded to you electronically so that you may expedite preparation of your response. Please do not send your response as a reply to this e-mail or via fax. The hard copy is being sent via US Mail. All response correspondence is to be mailed via hard copy to the 401 Oversight and Express Permits Unit, 2321 Crabtree Blvd., Raleigh, NC, 27604 unless otherwise noted. 061445NCStateNorthCreekSWWetland(Wake)_Hold_NW Content-Type: application/msword Content-Encoding: base64 1 of 1 9/11/2006 8:39 AM North Carolina State University is a land- Grant university and a constituent institution Of The University of North Carolina state uh/'? ^T obi *4Z September 1, 2006 NC DENR Division of Water Quality 401 Wetlands Unit 1650 Mail Service Center Raleigh, North Carolina 27699 An tquai Upportunity/Attirr http://www2.ncsu.edu/ehs/ 20081 4a; Office of Finance and Business Business Division Environmental Health & Safety Ce Campus Box 8007 Raleigh, North Carolina 27695-8007 Director 919.515.4238 Environmental Affairs 919.515.6859 Industrial Hygiene 919.515.6860 Health and Safety 919.515.6858 Radiation Protection 919.515.2894 (Fax) 919.515.6307 RE: North Creek Stormwater Wetland, Stream Enhancement and Outfall Restoration To Whom It May Concern: Please find enclosed one (1) original and six (6) copies of the Pre-Construction Notification Application for the above referenced project. A copy has also been submitted to the Army Corps of Engineers for their review and approval. If you have any questions or require additional information, please do not hesitate to contact me. Thank you for your attention in this matter. Sincerely, yn Ann Rowland rmwater Program Manager enclosures SEP 7 ZUU6 DENR - WATER QUALITY rua 8T0WNATr_? q H North Carolina State university is a land-grant NCSU Water Quality Group university and a constituent institution of the Department of Biological and Agricultural Engineering University of North Carolina College of Agricultural and Life Sciences Campus Box 7637 Raleigh, NC 27695 919.515.8240 (phone) 919.515.7448 (fax) Re: North Creek Stormwater Wetland and Stream Enhancement 111 To whom it may concern, NC State University Water Quality Group is proposing the construction of a stormwater wetland on NCSU Centennial Campus. The wetland is a badly needed retrofit to an existing storm drain system. The drain outlets are currently causing excessive erosion and destabilizing stream banks. The retrofit will route waters through a stable channel into a stormwater wetland for treatment. Due to the urban constraints of the area, impacts are proposed to the riparian buffer and streambanks in the vicinity of the wetland. A full set of plans detailing these impacts and further explaining the project is included with this package. The total disturbed area for the project will be less than 1 acre. In addition to the wetland, the associated stream reach is proposed for enhancement. The enhancement will include repair and stabilization of streambanks in the vicinity of the wetland, and a variety of activities along the project reach. The primary proposed enhancement activities will include invasive species removal and native species introduction and management. We propose to utilize some bank stabilization measures as necessary, which will include minor grading, protection with erosion control fabric, and revegetation. The project is being funded by the USDA and the NCDENR 319 program. We believe that the fully implemented project will be an example of how stormwater practices, and a properly managed urban riparian buffer zone can improve water quality and aesthetics in a constrained urban setting. A graduate student research project is underway for the site, which should provide information on the benefits of the project. Please accept our proposal and permit application package for the site. The permit is supported by and submitted through our NCSU Stormwater Program. Please feel free to contact me with any questions you may have. My phone number is given above and my email is jean_spooner@ncsu.edu River Basin: Neuse CU: 03020201 14-digit HU: 03020201090010 County: Wake Municipality: Raleigh Receiving Water: Lake Raleigh, Walnut Creek; 03-04-02 Thank you, Jean Spooner, PhD Group Leader, Extension Specialist Employment and program opportunities are offered to all people regardless of race, color, national origin, gender, age or disability. North Carolina State University, North Carolina A&T State University, U.S. Department of Agriculture, and local governments cooperating. ,nq (D? ? -s W ?a?6 5EP ? 4s ?s axvB wo, v? 4 F W A7'FR `C 6R?7 Pre-Construction Notification (PCN) Application Form For Section 404 and/or Section 10 Nationwide, Regional and General Permits, Section 401 General Water Quality Certifications, and Riparian Buffer and Watershed Buffer Rules This form is to be used for projects qualifying for any of the U.S. Army Corps of Engineers' (USACE) Nationwide, Regional or General Permits as required by Section 404 of the Clean Water Act and/or Section 10 of the Rivers and Harbors Act, and for the North Carolina Division of Water Quality's (DWQ) associated General 401 Water Quality Certifications. This form is also to be used for any project requiring approval under any Riparian Buffer Rules implemented by the N.C. Division of Water Quality. This form should not be used if you are requesting an Individual 404 Permit or Individual 401 Water Quality Certification. The USACE Individual Permit application form is available online at www.saw.usace.army.mil/wetlands/Permits.html. The USACE is the lead regulatory agency. To review the requirements for the use of Nationwide, Regional or General permits, and to determine which permit applies to your project, please go to the USACE website at www.saw.usace.army.mil/wetlands/index.html, or contact one of the field offices listed on page 3 of this application. The website also lists the responsible project manager for each county in North Carolina and provides additional information regarding the identification and regulation of wetlands and waters of the U.S. The DWQ issues a corresponding Certification (General or Individual), and cannot tell the applicant which 401 Certification will apply until the 404 Permit type has been determined by the USACE. Applicants are encouraged to visit DWQ's 401/Wetlands Unit website at http://h2o.enr.state.nc.us/ncwetlands to read about current requirements for the 401 Water Quality Certification Program and to determine whether or not Riparian Buffer Rules are applicable. The applicant is also advised to read the full text of the General Certification (GC) matching the specific 404 Permit requested. In some cases, written approval for General Certifications is not required, provided that the applicant adheres to all conditions of the GC. Applicants lacking access to the internet should contact DWQ's Central Office in Raleigh at (919) 733-1786. Trout Waters Coordination - Special coordination with the North Carolina Wildlife Resources Commission (NCWRC) is required for projects occurring in any of North Carolina's twenty-five counties that contain trout waters. In such cases, the applicant should contact the appropriate NCWRC regional coordinator (listed by county on page 4 of this application) prior to submittal of the application. Page 1 of 13 Coastal Area Management Act (CAMA) Coordination - If the project occurs in any of North Carolina's twenty coastal counties (listed on page 4) the applicant should contact the North Carolina Division of Coastal Management (DCM). DCM will determine whether or not the project is within a designated Area of Environmental Concern, in which case DCM will act as the lead permitting agency. In such cases, DCM will require a CAMA Permit and will coordinate the 404/401 Permits. The applicant may also choose to coordinate with the United States Fish and Wildlife Service to ensure that the proposed project will have no impact upon any endangered or threatened species or critical habitat as regulated by the Endangered Species Act, and the State Historic Preservation Office, North Carolina Department of Cultural Resources to ensure that the proposed project will have no impact upon any properties listed or eligible for listing on the National Register of Historic Places. Compliance with these regulations is required to be eligible for any Department of the Army permit. The addresses for both agencies are listed on page 3 of this application. USACE Permits - Submit one copy of this form, along with supporting narratives, maps, data forms, photos, etc. to the applicable USACE Regulatory Field Office. Upon receipt of an application, the USACE will determine if the application is complete as soon as possible, not to exceed 30 days. This PCN form is designed for the convenience of the applicant to address information needs for all USACE Nationwide, Regional or General permits, as well as information required for State authorizations, certifications, and coordination. Fully providing the information requested on this form will result in a complete application for any of the USACE Nationwide, Regional or General permits. To review the minimum amount of information that must be provided for a complete PCN for each USACE Nationwide permit, see Condition 13, 67 Fed. Reg. 2090 (Jan. 15, 2002), available at http://www.usace.army.mil/inet/functions/cw/cecwo/reg/2002nyms.pdf. Processing times vary by permit and begin once the application has been determined to be complete. Please contact the appropriate regulatory field office for specific answers to permit processing periods. 401 Water Quality Certification or Buffer Rules - All information is required unless otherwise stated as optional. Incomplete applications will be returned. Submit seven collated copies of all USACE Permit materials to the Division of Water Quality, 401/Wetlands Unit, 1650 Mail Service Center, Raleigh, NC, 27699-1650. If written approval is required or specifically requested for a 401 Certification, then a non-refundable application fee is required. In brief, if project impacts include less than one acre of cumulative wetland/water impacts and less than 150 feet cumulative impacts to streams, then a fee of $200 is required. If either of these thresholds is exceeded, then a fee of $475 is required. A check made out to the North Carolina Division of Water Quality, with the specific name of the project or applicant identified, should be stapled to the front of the application package. For more information, see the DWQ website at http://h2o.ehnr.state.nc.us/ncwetiands/fees.html. The fee must be attached with the application unless the applicant is a federal agency in which case the check may be issued from a separate office. In such cases, the project must be identifiable on the U.S. Treasury check so that it can be credited to the appropriate project. If written approval is sought solely for Buffer Rules, the application fee does not apply, and the applicant should clearly state (in a cover letter) that only Buffer Rule approval is sought in writing. Wetlands or waters of the U.S. may not be impacted prior to issuance or waiver of a Section 401 Water Quality Certification. Upon receipt of a complete application for a 401 Certification, the Division of Water Quality has 60 days to prepare a written response to the applicant. This may include a 401 Certification, an on-hold letter pending receipt of additional requested information, or denial. Page 2 of 13 US Army Corps Of Engineers Field Offices and County Coverage Asheville Regulatory Field Office Alexander Caldwell Haywood McDowell Swain US Army Corps of Engineers Alleghany Catawba Henderson Mecklenburg Transylvania 151 Patton Avenue Ashe Cherokee Iredell Mitchell Union Room 208 Avery Clay Jackson Polk Watauga Asheville, NC 28801-5006 Buncombe Cleveland Lincoln Rowan Yancey Telephone: (828) 271-7980 Burke Gaston Macon Rutherford Fax: (828) 281-8120 Cabarrus Graham Madison Stanley Raleigh Regulatory Field Office Alamance Franklin Nash Surry US Army Corps Of Engineers Caswell Forsyth Northampton Vance 6508 Falls of the Neuse Road Chatham Granville Orange Wake Suite 120 Davidson Guilford Person Warren Raleigh, NC 27615 Davie Halifax Randolph Wilkes Telephone: (919) 876-8441 Durham Johnston Rockingham Wilson Fax: (919) 876-5823 Edgecombe Lee Stokes Yadkin Washington Regulatory Field Office Beaufort Currituck Jones Pitt US Army Corps Of Engineers Bertie Dare Lenoir Tyrrell Post Office Box 1000 Camden Gates Martin Washington Washington, NC 27889-1000 Carteret* Green Pamlico Wayne Telephone: (252) 975-1616 Chowan Hertford Pasquotank Fax: (252) 975-1399 Craven Hyde Perquimans *Croatan National Forest Only Wilmington Regulatory Field Office Anson Duplin Onslow US Army Corps Of Engineers Bladen Harnett Pender Post Office Box 1890 Brunswick Hoke Richmond Wilmington, NC 28402-1890 Carteret Montgomery Robeson Telephone: (910) 251-4511 Columbus Moore Sampson Fax: (910) 251-4025 Cumberland New Hanover Scotland North Carolina State Agencies Division of Water Quality 401 Wetlands Unit 1650 Mail Service Center Raleigh, NC 27699-1650 Telephone: (919) 733-1786 Fax: (919) 733-6893 Division of Water Quality Ecosystem Enhancement Program 1652 Mail Service Center Raleigh, NC 27699-1652 Telephone: (919) 715-0476 Fax: (919) 715-2219 State Historic Preservation Office Department Of Cultural Resources 4617 Mail Service Center Raleigh, NC 27699-4617 Telephone: (919) 733-4763 Fax: (919) 715-2671 US Fish and Wildlife Service / National Marine Fisheries Service US Fish and Wildlife Service US Fish and Wildlife Service National Marine Fisheries Service Raleigh Field Office Asheville Field Office Habitat Conservation Division Post Office Box 33726 160 Zillicoa Street Pivers Island Raleigh, NC 27636-3726 Asheville, NC 28801 Beaufort, NC 28516 Telephone: (919) 856-4520 Telephone: (828) 258-3939 Telephone: (252) 728-5090 Page 3 of 13 CAMA and NC Coastal Counties Division of Coastal Management Beaufort Chowan Hertford Pasquotank 1638 Mail Service Center Bertie Craven Hyde Pender Raleigh, NC 27699-1638 Brunswick Currituck New Hanover Perquimans Telephone: (919) 733-2293 Camden Dare Onslow Tyrrell Fax: (919) 733-1495 Carteret Gates Pamlico Washington NCWRC and NC Trout Counties Western Piedmont Region Coordinator Alleghany Caldwell Watauga 3855 Idlewild Road Ashe Mitchell Wilkes Kernersville, NC 27284-9180 Avery Stokes Telephone: (336) 769-9453 Burke Surry Mountain Region Coordinator Buncombe Henderson Polk 20830 Great Smoky Mtn. Expressway Cherokee Jackson Rutherford Waynesville, NC 28786 Clay Macon Swain Telephone: (828) 452-2546 Graham Madison Transylvania Fax: (828) 452-7772 Haywood McDowell Yancey APPLICATION FORM BEGINS ON PAGE 5. PLEASE DO NOT SUBMIT PAGES 1 - 4. Page 4 of 13 Office Use Only: Form Version March 05 USACE Action ID No. DWQ No. flw _ l q4S (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) 1. Processing Check all of the approval(s) requested for this project: ? Section 404 Permit ® Riparian or Watershed Buffer Rules ? Section 10 Permit ? Isolated Wetland Permit from DWQ ® 401 Water Quality Certification ? Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: ? 4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII, and check here: ? 5. If your project is located in any of North Carolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal Environmental Concern (see the top of page 2 for further details), checMana 1 II. Applicant Information S E P 7 2006 Owner/Applicant Information UENR WATER QUALITY WETLANDS AND S70RMWATER BRANCH Name: Charles Leffler Mailing Address: Campus Box 7201 Raleigh, NC 27695 Telephone Number: 919-515-2155 Fax Number: 919-515-5121 E-mail Address: charles leffler ,ncsu.edu 2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: N/A Company Affiliation: Mailing Address: Telephone Number: E-mail Address: Fax Number: Page 5 of 13 III. Project Information 8. Attach a vicinity map clearly showing the location of the property with respect to local landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: North Creek Constructed Stormwater Wetland with Vegetated Waterway System & Stream Enhancement (stream reach between Varsity Drive to Research Drive) 2. T.I.P. Project Number or State Project Number (NCDOT Only): 3. Property Identification Number (Tax PIN): 079352 4. Location County: Wake Nearest Town: Raleigh Subdivision name (include phase/lot number): N/A Directions to site (include road numbers/names, landmarks, etc.): From downtown Raleigh, take Western Blvd west and make a left on Avent Ferry Rd. Turn left onto Varsity Drive (entrance to Centennial Campus) and a right onto Capability Drive. Project site is on immediate left at bottom of road bank. 5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 35° 46'28" ON 780 40'46" °W 6. Property size (acres): Project site is less than 1 acre 7. Name of nearest receiving body of water: North Creek, tributary to Lake Raleigh (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) River Basin: Neuse 9. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: See attached Page 6 of 13 10. Describe the overall project in detail, including the type of equipment to be used: See attached 11. Explain the purpose of the proposed work: See attached IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. NCSU has several prior permits along this reach. None are directly related to this project. Varsity Drive Crossing of North Creek Action ID #1999821276, NWP 26 NCSU Infrastructure Phase V, Stormwater Management Pond #2 and Greenway Trail DWQ Project # 02-1252 North Creek Constructed Stormwater Wetland DWQ Project # 04-0233 Action ID #200420780 V. Future Project Plans Are any future permit requests anticipated for this project? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application. See attached VI. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. Each impact must be listed separately in the tables below (e.g., culvert installation should be listed separately from riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts, Page 7 of 13 permanent and temporary, must be listed, and must be labeled and clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a separate sheet. 1. Provide a written description of the proposed impacts: See attached 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and floodina. Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within 100-year Floodplain ( es/no) Distance to Nearest Stream (linear feet) Area of Impact (acres) Total Wetland Impact (acres) 0 3. List the total acreage (estimated) of all existing wetlands on the property: none 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. To calculate acreai2e. multiply lencth X width. then divide by 43.560. Stream Impact Number (indicate on ma) Stream Name Type of Impact Perennial or Intermittent? Average Stream Width Before Impact Impact Length (linear feet) Area of Impact (acres) 1 North Creek Stream stabilization Perennial 11 25 .006 2 North Creek Stream stabilization Perennial 14 12 .004 Total Stream Impact (by length and acreage) 37 .010 Page 8 of 13 5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.). Open water impacts include, but are not limited to fill, excavation, dredging, flooding, drainage, bulkheads, etc. Open Water Impact Site Number (indicate on ma) Name of Waterbody (if applicable) Type of Impact Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc.) Area of Impact (acres) Total Open Water Impact (acres) 0 6. List the cumulative impact to all Waters of the U.S. resulting from the project: Stream Impact (acres): Wetland Impact (acres): 0 Open Water Impact (acres): 0 Total Impact to Waters of the U.S. (acres) 0 Total Stream Impact (linear feet): 7. Isolated Waters Do any isolated waters exist on the property? ? Yes ® No Describe all impacts to isolated waters, and include the type of water (wetland or stream) and the size of the proposed impact (acres or linear feet). Please note that this section only applies to waters that have specifically been determined to be isolated by the USACE. 8. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): ? uplands ? stream ? wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): Current land use in the vicinity of the pond: Size of watershed draining to pond: Expected pond surface area: VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts Page 9 of 13 were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. See Attached VIII. Mitigation DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on January 15, 2002, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o.enr.state.nc.us/ncwetlands/strmgide.html. 1. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. N/A 2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at (919) 715-0476 to determine availability, and written approval from the NCEEP indicating Page 10 of 13 that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at http://h2o.enr.state.nc.us/M/index.htm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): N/A Amount of buffer mitigation requested (square feet): N/A Amount of Riparian wetland mitigation requested (acres): N/A Amount of Non-riparian wetland mitigation requested (acres): N/A Amount of Coastal wetland mitigation requested (acres): N/A IX. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes ® No ? 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes ? No 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes ? No ? X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? Yes ® No ? 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer multiDliers. Zone* Impact Multiplier Required (square feet) Mitigation 1 6,977 3 (2 for Catawba) N/A Page 11 of 13 1 2 4,798 1 1.5 N/A Total 11,775 1 * Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration / Enhancement, or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. No impervious acreage will be added to the site during this project. XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes ? No Is this an after-the-fact permit application? Yes ? No ? XIV. Cumulative Impacts (required by DWQ) Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes ? No ? If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at http://h2o.enr.state.ne.us/ncwetiands. If no, please provide a short narrative description: XV. Other Circumstances (Optional): Page 12 of 13 XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). Applicant/Agent's Signature (Agent's signature is valid only if an authorization letter from the applicant is provided.) Mr. Charles D. Leffler, Vice Chancellor for Finance and Business Lis (3f10 6 Date Page 1 of 1 North Creek Constructed Stormwater Wetland with Vegetated Waterway System & Stream Enhancement (stream reach between Varsity Drive to Research Drive) - North Carolina State University Pre-Construction Notification Application Form Attachments Part III, Question 9: Existing Conditions The proposed project is planned along a 1,050 foot reach of North Creek on NCSU Centennial Campus. This reach is between Varsity and Research Drives. The planned work includes the construction of a stormwater wetland (Figures 1, 2, and 8), and stream and buffer enhancement along this reach (Figures 3). The stormwater wetland is a desperately needed retrofit to an existing stormwater outfall system. The current outfall configuration has contributed to an extensive amount of damage and sediment transport to North Creek. Two existing outfalls deliver runoff at high velocity to a terrace area just outside the creek buffer. The outfalls are approximately 7-9 feet in elevation above the creek bed creating a steep slope. The outfalls have weakened soil conditions and stream banks, causing some trees to fall during high winds. This damage has progressed in the last two years, with a deep gully and headcut forming, delivering eroded sediments and debris into the creek. The attached photographs depict the outlets and the large scour hole that has formed and filled with fallen trees, stones, and weedy vegetation (Figures 4-7). Two stormwater culverts discharge onto the site. The larger culvert (SOC 3) is 3 feet in diameter and drains water from a watershed of approximately 4.8 acres of 65% impervious roadway from Varsity Drive. The smaller 2 foot culvert (SOC 4) drains water from a 5.6 acre area of approximately 87% woodland and 13% impervious roadway from Capability Drive. The stream banks are very unstable in this section of the project. The current scour-hole starts at the confluence with North Creek and is slowly migrating northward from the channel headcut, which will eventually endanger the culvert wing-wall on Varsity Drive and large hardwood trees currently stabilizing the remaining stream bank. Part III, Question 10: Overall Project Description A constructed stormwater wetland and vegetated waterway system is proposed on the abandoned terrace of North Creek to serve as a stormwater BMP retrofit on Centennial Campus, NCSU. The proposed wetland will repair the eroded gullies, re- route the stormwater into a stable swale and to the wetland for treatment. Plunge pools consisting of large boulders and a geo-textile liner will be installed at the outlets of both culverts to dissipate energy and remove larger sediment. The plunge pool at the SOC 3 culvert will discharge stormwater over a spillway reinforced with turf matting to the 1% sloped vegetated waterway. The vegetated waterway is designed to handle peak flows from the 25-yr storm event. The first section of the waterway handling discharges from SOC 3 has a top width of 12 feet with a maximum depth of 1.5 feet. Where the waterway merges with the reinforced spillway from the SOC 4 culvert plunge pool, the waterway dimensions change to a top width of 16 feet, a maximum depth of 2.0 feet, and a channel slope of 0.5%. Construction drawings for the stormwater wetland system are attached. Due to the limited space for construction of the site, the proposed stormwater wetland is designed to hold water from the first 0.3 inches of rainfall with a three-day retention time for the stormwater. Considering the first-flush nature of pollutant runoff during storm events, this stormwater wetland system will capture and treat a larger proportion of the pollutants in the runoff compared to the fraction of runoff volume. A modified flash board riser system will control the water level in the wetland and is designed to safely route the 25-yr, 24-hr storm with minimum disturbance to the stream and floodplain. The surface area of the stormwater wetland is 3,978 sq ft, approximately 0.88% of the total watershed area comprised of both SOC 3 and SOC 4 drainage areas. Approximately 16% of the wetland contains two deep pools (at most 2.5 ft deep below normal pool) and one shallow pool (at most 1.5 ft deep below normal pool). A sinuous low-flow channel 2 feet wide and 1 foot deep connects the three pools and comprises about 18% of the wetland surface area. A shallow water area between 0-6 inches below the normal pool will encompass 36% of the total wetland surface area. The remainder of the wetland surface area (45%) will contain shallow land that will only be completely covered with water during storm events that reach the extended detention depth of 1-foot. In order to construct the stormwater wetland and vegetated waterway system, the existing ground will be excavated. Part of the road bank of Capability Drive will be graded to a slope no greater than 2/1 in order to meet the grade requirements for the wetland while maintaining 3/1 side slopes within the wetland as well as a required distance of 15 ft from any trees larger than 9-inches. Excess cut soil from the wetland will be used to fill the existing scour-hole and re-stabilize that section of the North Creek stream bank. During the project, excavated soil will be stockpiled in designated areas, and check dams with slope drains will be installed at the spillways to the two plunge pools to safely divert stormwater to North Creek. In addition, a temporary sediment dam will be installed at the exit of the scour-hole before the confluence with North Creek to help remove any remaining sediment. In order to maintain permanent stormwater wetland conditions the bed of the wetland will be sealed using bentonite clay liners at the depth of excavation, with a minimum permeability of 0.01 in/hr. The liners will be constructed by spreading bentonite onto the soil surface, vertically distributing the bentonite into the existing soil using a pug-mill mixer or other suitable mixing equipment, and then compacting the liners using a backhoe, track hoe, or other compacting equipment. A soil geotechnical consultant will be required to determine the amount of bentonite to add, the degree of compaction, and will oversee the installation of the liner. The permeability of the liner will be tested for quality assurance before construction of inner wetland features begins. A layer of topsoil will also be added over the bentonite clay liner to prevent pH spikes and provide a healthy media for vegetation. The final phase of the stormwater wetland/waterway construction will be the addition of vegetation within the wetlands and along the perimeter of the project site. A variety of native wetland species will be placed in specified areas within the wetland, grasses will be planted on the berms and vegetated waterway, and upland plants including shrubs and trees will be added surrounding the wetland boundary to further improve the riparian function of the floodplain. In conjunction with the stormwater wetland system, we proposed stream enhancements within the same stream reach. The primary stream impacts proposed are to repair, stabilize, and revegetate a massively eroded are of the stream that the wetland will protect. Additional impacts areas are in support of protecting the primary and emergency outlets of the wetland. Stream impacts in these areas will be limited to reconstruction of streambanks in the immediate area. The areas of impact are shown on the stormwater wetland plans. The impact will be temporary and limited to one side of the bank unless otherwise necessary. The total stream length impact is estimated at 20 feet at each of two locations for a total less than 100 feet. In addition, and as part of the overall project, stream and buffer enhancement has been planned for the entire 1,050 foot reach. Woody vegetation has been severely reduced along one side of the stream due to prior construction activities. The enhancement plans include invasive species control, reestablishment of native woody tree species, and bank stabilization with plantings. The enhancement work may involve a minor amount of grading to physically remove debris, invasive vegetation, or to facilitate planting efforts. No significant grading will take place in or around the stream and the stream pattern and profile will remain unaltered. It is expected that some minor bank grading may be necessary. However, this will be kept to a minimum and will be protected immediately with erosion control matting and vegetation. A final part of this project will involve the stabilization of an existing stormwater outfall upstream of this site. The outfall is currently protected by an insufficient amount of inadequately sized riprap. The area is actively eroding. The riprap will be replaced with a series of rock step pools in an attempt to stabilize the area and prevent further erosion. ( i-'-ic>c «--Ce? PLC-A-" 5 C-O(- q?,) We are requesting approval of our stream and buffer enhancement plans associated with this project. The details of planned stream impacts are shown on the attached plans, and a concept plan of the enhancements is also included. This project will be a model for an alternative, minimal approach to stream improvement in an urban area. Please do not hesitate to contact us if additional information is needed. Part III, Question 11: Purpose of the Proposed Work The purpose of this project is to construct a stormwater wetland and vegetated waterway system to improve the water quality and treatment of stormwater, re-stabilize parts of North Creek's stream banks and terrace, reduce sediment transport, and to protect and improve the remaining riparian trees and vegetation along the creek. The wetland/waterway system is anticipated to reduce peak storm flows and help lower nitrogen, phosphorus, suspended sediment, organic compounds, and metal concentrations in the stormwater before it reaches North Creek, using stormwater retention and wetland vegetation and microorganisms. The wetland will serve as a stormwater BMP retrofit on Centennial Campus to improve water quality in the surrounding watershed. In association with the wetland installation, trees, shrubs, and herbaceous wetland and upland species will be planted on the terrace and floodplain in order to enhance the riparian function and aesthetic characteristics. Part V: Future Project Plans Additional stream restoration is planned for a downstream reach of North Creek south of Research Drive, approximately 1,000 feet downstream of the proposed BMP retrofit (see vicinity map). Funding has not yet been secured so construction is not scheduled. Part VI: Proposed Impacts to Waters Damage to Zone 1 exists within this section of North Creek and stream restoration improvements will be completed in cooperation with the BMP retrofit project. Part VII: Impact Justification (Avoidance and Minimization) Impacts to Zone 1 are primary related to stabilization of the streambank area. All attempts have been made to minimize impacts to buffer and stream areas. However, due to space constraints of the project, some temporary impacts are unavoidable. All streambank impacts will result in a significant improvement to bank stability, and buffer impact areas will be densely vegetated. It is our opinion that the site will improve water quality, and contribute to stream and buffer habitat. 1 T*t vi V a e = ?, t Aft r f .? fit"` t ; i i i j i i Figure 1: Aerial photo with location of proposed BMP (see Fig. 2 for project -L ---- ---X Figure 2: Project schematic North Creek Stormwater Wetland Concept Plan /7 and Stream/Buffer Enhancement wopo.W WO—d ApWOflmatr c.00n..y Locolbn-1 41rOam Impact ArOw Ennenc�m�m Figure 3: Stream/Buffer Enhancement Concept Plan RMOOnph IV B w.g Figure 5: Migrating channel headcut in the scour-hole e K'i`.k J. r, A ?i ?? ?+ ?j - - Proposed Waterway Stream Impact/Improvement Area 1 9w S m Culvert Wingwall Proposed Wetland - - Flashboard Riser Plunge Pool North Creek (see details) (see details) _ Top of Bank 36" RCP " RCP 36 Stream Impact/ Improvement Area 2 m,wawx ?, NAG C350 A \ Permanent Matting .... \ Removed Trees COPOb lll ty Driv Plunge Pool :0 e (see details) - ?, : 1 24" RCP I (Deep Paoli - w Disturbance Limits Q z ? Slope and Upland Areas Shallow Land ---- W Shallow Water x m' Total Disturbed Area: 0.46 acres Wetland Zones Normol Depths Pools 2-2.5 below normal pool Low Flow Channels 0.5-1' below normal pool Shallow Water 0-6' below normal pool Shallow Land 0-12' above normal pool Wetland Slopes 12 and above normal pod A 0 z D 20F8 Disturbance Limits I l NOTES 1. The locations and extent of improvements shown are approximate. Exact locations and limits of disturbance will be identified and marked by the Project Engineer prior to construction. 2. NI trees shall be protected from impacts due to traffic and construction activities. Reparations for any damages to existing trees as a result of construction activities shall be the responsibility of the contractor. 3. Proposed contouring is shown for information only. Excavate improvements to the depths, sideslopes, and grades indicated, and as staked and directed by the Project Engineer. 4. Strip and stockpile topsoil from indicated areas for replacement and fine grading. All wetlands should be excavated to a depth 4-6 inches below the finished surface to allow for topsoil replacement. 5. All sideslopes are 3:1(H:V) unless otherwise indicated. Slopes shall be covered with North American Green SC15OBN or equivalent erosion control blanket. 6. All pipe shall be installed according to the attached details and to the manufacturer's recommendations. 7. Surround all disturbed areas with temporary orange safety fencing. Remove after project completion or at the direction of the Project Engineer. Planting Zone Areas Open Water Areas: 623.1 sf Shallow Water Areas: 1444.6 sf Shallow Land Areas: 1488.5 sf Wetland Slope/Upland Areas: 12,193 sf Total Wetland Area: 3977.5 sf Vegetated Waterway Area: 1957 sf Total Disturbed Area: 0.47 acres yro RSr, n$ - ro q a v iz A 13 w 0 z 3oF8 Vegetated Waterway Plant List Re—seed all disturbed areas with 100 lbs/acre of .Weeae--vr-olher grass mix as directed. Spread straw mulch at a rate of 1.5 tons/acre. Shallow Water Areas Plant a total of 360 wetland plugs in the Shallow Water Area. Acquire equal quantities of each species when possible. Plant in groups and on 2 ft centers. Species Ust: Carex lurid. Carex tricta Iris virginity Peltandra virginica Sagitutna lancifolia Scrip- americanus Scripm vandus Shallow Land Areas Plant a total of 375 wetland plugs in the Shallow Land Area. Acquire equal quantities of each species when possible. Plant in groups and on 2 ft centers. Species List: Carex crinin Eupatorium ftstulosum Juneus etf_ Saurunu cemuus Scopus .tutus Also plant a total of 40 shrub species in Shallow Land Area. Plant these species at 6' spacing along the outer perimeter and slopes of the wetland. Cephalanthus occidentalis Hibiscus moseheutos Lobelia cardimlis Rosa palustris Sambucus canadmsis Wetland Slope and Upland Areas Plant a total of 300 shrubs/small trees at 6' spacing. Asimina triloba Corylus americana Hibiscus moscheutos Ilex verticillata Plant a total of 110 trees at 10' spacing. Cdtis laevigam Diospyros%irginima Liriodendron tulipifera Prunus serotina Slope and Upland Areas Shallow Land Shallow Water Legend Slope @ Upland Meas Shallow Land Shallow Water Stream Impoet/lInpraMIM t Area Permanent Matting MT. MA Jew .d z ti y p" z z to td Z �a O z M M U z PAG3.1'� 40F8 Cross Section A Existing Surface Design Surface ,m Structure Stone, Class Boulder_ 1,5' MIN Thickness .. xim .., „ nm m Cross Section B Berm n? 20.0 ft--d 4 ,mm 4 Cross Section C Cross Section D ,gym ?w 12.0 3 RS1.14$ Cross Section E 326.00 Yr 32200 318.00 314.00 3.Q f< ltlIRT. 316.00 - xcw xsn 306.00 Aam.er ? 30200 rm 0.00 15.00 30.00 45.00 60.00 15.00 90.00 112.50 r.. VaVcal Fmtor 1.0 'd a m R Cross Section F W 0 F 1n 328.00 rn e ? ¢ 324.00 V 4 320.00 Extended Detention Depth (El. 308.5 ft) Oja 316.00 O 312.00 % 306.00 ` - U 0 304.00 300.00 D 0.00 75.00 30.00 45.00 60100 75.00 90.00 11250 U Vertical Fxtw 1.0 Z Normal Pool Depth (El. 307.5 ft) 5oF8 18" Slope Drains N, (see details) Sholo. Lana Silt Fence Silt Fence 0 Shallow (see details) (see details) ? Streon, Am Ynpod/Impowment Me purnaNnt &*"ng RM Temporary Rock Dam p (see details) .. NAG SC1508N Temporary Matting 10 SI a Droi \ (s details /. ••\• \? \ NAG SC1508N Temporary Matting A v Check Dam Chk Dam (see details) (see details) 31dew0/k \\ ? I Disturbance Limits j ! \ i ! J' tlpteflete Slit Fence 310 R Construction Entrance °r .. ' ?°' 10 n (see details) NAG SC1508N aon 10' a?. 135 Ckm 1 or B Stone 1s cvvd Temporary Matting lt9mtl Slope t UpkiM "^oe h m dd s ? w ? ear. n& b a 1 ,..t 0 m 0 "A tr 0 Ul V fy ? W a z EAGKIH 60F8 PROJECT NARRATIVE: This project is part of the Water Quality and Biological Integrity Improvement Project in North Creek/Walnut Creek It is a joint venture between North Carolina's Section 319 NPS Program end N.C. State University. The goal of this project is to construct an innovative stormwater control enhancement to establish a natural corridor through an urban setting while effectively treating urban stormwater pollutants. The proposed wetland and vegetated Swale system will not only treat stormwater, but provide improvement in flood control and enhance native wildlife habitat and ecological diversity. The project involves bulk earth movement, fine grading, installation of pipng, final grading, and planting. GENERAL CONSTRUCTION SEQUENCE: 1, locate and set up an appropriate site for stockpile of materiels and storage of equipment 2. Install all erasion control measures including construction entrance. 3. Remove downed trees and debris from eroded channel. 4. Construct plunge poets, check dams and slope drains at culvert outlets. 5. Remove and stockpile topsoil. 6. Begin moss grading operations. 7. Install outlet pipes/structures in wetland. & Replace topsoil and complete fine grading. 9. Implement planting plan. 10. Request a completion inspection from the Project Engineer. GRADING AND EROSION CONTROL NOTES: 1. AN erosion control must be set-up and inspected prior to commencement of grading operations. 2. Strip and stockpile topsoil in indicated areas for use as substrate in wetlands. 3. Culverts shall be reinforced concrete pipe or equivalent. 4. All elevations shown on the Project Drawings are restive. Utilize benchmarks as directed by the Project Engineer. Grading stall be met within a tolerance of 0.1' 5. Stabilization measures shall be initiated as soon as practicable in portions of the site where construction activities have temporarily or permanently ceased, but in no case more than fourteen (14) days after work has ceased, unless activity in that portion of the site will resume within twenty-one (21) days. 6. NI sediment and erosion control devices shall be inspected every seven (7) days or after each rainfall occurence that exceeds one-half (1/2) inch. Damaged or ineffective devices shall be repaired or replaced, as necessary. control devices shall be properly maintained during oil phases of may be required during construction in order to control erosion and/or off-site sedimentation. AN temporary control devices shall be removed once construction is complete and the site is stabilized. 8. The contractor must take necessary action to minimize the tracking of mud onto the paved roadway construction areas. The contractor shall daily remove mud/soil from pavement, as may be required. 9. Temporary diversion berms and/or ditches will be provided as needed during construction to protect work arem from upslope runoff and/or to divert sediment laden runoff water to appropriate trope or stable outlets. Recommended Wetland Maintenance Activities 1. Outlet 6 Inlet 2 Perkxlk: trash removal. As needed Clean trash from wetland interior as needed for wetland aesthetics. 3 Destroy muskrat holes (do this when dokg t2 above). 4. Do not mow planted weUand sideslopes. The tops of berms and bacbbpes may be mowed at the City's discretion. 'No mow zone' signs are recommended at a minimum 10' foot distance from protected areas. 5. Invasive Species Removal. Once per year. Only necessary for cattail removal or to improve site aesthetics. 6. Mina Outlet/Inlet repair. Once every 2-3 years. Identify and repair erosion problems. Replace damaged !wards in flashboard risers. similar equip may be needed Due to the developed activity may not ever be necessary. ar this CONSTRUCTION ENTRANCE NLS 50' Yet BUT SUFFICIENT To KEEP SEDIMENT ON STE 057 WASHED STONE To ENSTM BE USED ROADWAY PAN EXISTING ROADWAY N OTES' 1. M SLT FENCE ON TREE PROTECTION FENCE UP TO ENSURE CONSTRUCTION ENTRANCE IS USED. 2 IF CONSTRUCTION ON THE SEES ARE SIKH THAT THE MUD S NOT REMOVED BY THE VEHICLE TRAVEL- 15' OR WIDTH OF NO OVER THE STONE, THEN THE TIRES OF THE WIDEST EQLRPMEN-. VE}16E5 MUST BE WASHED BEFORE ENTERING THE PUNK ROAD w1a6EVEP t5 . GREATER. 1 E A PROJECT CONTINUES TO PULL MUD AND DEBRIS ON TO THE PUSUC ROAD, THE GOVERNING AUTHORITY NEIL CLEAN THE AREA AND INVOICE THE RNANCL4LLY PESPOHSBIE PERSON AS INDICATED ON THE FINANCIAL RES'ONS81UTY FORM. 3W NN. 15' NN. NEW 0OISIRIIC110N 6' WIN. 12' MIN_ . lER FABRIC UNDER STONE FbnH ,,,W_.,rKm pie Xw 0 CQ rm. nA b q m In -? a CIS A ? 8 70F8 SEDIMENT FENCE N.T.S. L CONSTRUCTION SPECIFICATIONS 1. Nark the intended fine of placement for the sediment fence on the ground at the site as outlined on the plan. 2. Construct the sediment fence of standard strength or extra strength synthetic titer fabric. Do not use fabrics that are quickly biodegradable. Synthetic fitter fabric should contain ultraviolet ray inhibitors and stabilizers to provide a minimum of 6 months of expected usable construction Ilfe at a temperature range of 0' to 120' F. Ensure that the height of the silt fence does not exceed eighteen (18) inches above the ground. 3. Construct the fitter fabric from a continuous roll cut to the length of the barrier to avoid joints. When joints are necessary, securely fasten the filter cloth only at o support post with overlap to the next post. For reinforcement of fitter fabric, use wire fence with a minimum fourteen (14) gauge and a maximum mesh spacing of six (6) inches. 4. Support fitter fabric with wire mesh fastened securely to the upsbpe of the posts using either tie wires or heavy duty wire staples at least one (1) inch long. Extend the wire mesh to support the bottom of the trench. 5. Space posts a maximum of eight (8) feel apart Support should be driven securely into the ground to a minimum depth of eighteen (18) inches. Ensure that the posts for sediment fences are 1.33 Ib/Inear ft steel with a minimum length of four (4) feel Make sure that steel posts have projections to facilitate fastening the fabric. 6. Excavate a trench approximately four (4) inches wide and eight (8) inches deep along the proposed line of posts and upslope from the bonier. 7. Bmkfill the trench With compacted soil or gravel placed over the filter fabric. 8. Do not attach the titer fabric to existing trees. 11. MAINTENANCE 1. Fen" posts which have become dislodged or displaced for any reason Shall be immediately replaced. 2. Teas in the fabric of the fencing shall likewise be repaired to maintain the intended function of the silt fence. 3. The proper function of the sediment fence is to be maintained at all times. 1. Confirm with the Southern Pines Public Works Department that removal of the fen" Is acceptable. 2. Remove the sediment fen" and smooth the disturbed area to blend with the surrounding topography. Filr Folbric Win, CHECK DAM/SEDIMENT TRAP N.T.S. 1. CONSTRUCTION SPECIFICATIONS 1. place stone to to rues and dimensions shown in the plan on a fitter fabric foundation. 2. Keep the center stone section at least nine (9) inches below natural ground level where the dam abuts the channel banks. 3. Extend the stone at least one and a half (1.5) feet beyond the ditch banks to keep overflew water from undercutting the dam as it re-enters the channel. 4. Use four (4) to fifteen (15) inch stone (NCDOT class 1 or class B erosion control stone). II. MAINTENANCE 1. Inspect channel for damage after each runoff event. 2. Remove sediment accumulated behind check dam as needed to prevent damage to channel vegetation, allow the channel to drain through the stone check dam, and prevent large flows from carrying sediment over the dam. 3. Add stones to the dam as needed to maintain design height and cross section. 0-W z FT. FcMd .4th Yiin to thick nCDOr (-) ROCK. NCOUr CIa 1 or Clow e aaYan ? rpr 07 lido CUFT./AOE (ILL) 5'IOIU[E W1wE 9? .t r aR. T (nwx) E.? X-SECTION "G°a MI`" "r" mnaewr over rare FAM FUM uu ameesue wdrr raw a R. le STONE SECTION TYPIC AL ? Sa mw TEMPORARY ROCK DAM i ?x oars height ! e. ma NRCO 6.63 Na SCALE • Qor foc g m clan enoa wgor to kM Gov • Ou d Wdm WoodU pw = NOTE' Reek Oon rwM rwt b. loaotk h M a ebgn FLASTi80ARD RISER DETAIL N.T.S EL Tap of Riser = 30115.5 R Riser Diam - 5 ft Slope Drain and Inlet Detail lNatlc curmgded pipe Chwx don over Wd- T I.6' min 4• ? r:??.z ?+ t 1?~y- memf "'i1Vhr??/ : e ?l1 \-Oatld Pipes INLET DETAL Mole all pipe cannealkrn wotorWit ad seam p that the joint wi not *spa** in We. I Pbe Barrr .109.5 It - Top of Emb-lw--t EL Outlet NV. - 3005 ft Fill bottom with 1.5 ft of concrete EL Rattan Of Riser - 299.0 ft PROFILE VIEW \_Pipe barrel Dloe . 3 It PLAN NEW flcdnbaud Riser 41?? Pip. Bard cub h ?W 14 m FIST. me, Arse b q m in " Eb M A ?U >?N o z 0 ?A 1i S. 0 Z U Z 80F8 Stormwater Outfall Retrofit Schematic 30M 34" y1,.M *"A 343 344.M 34= 34M 34Ln Luc ???, F-ig 4: S?C 2 Conceptual Step Pool 10.0 49" CMP Culy. Inv. 313,34' 8.00 `w . . 2'x2'x2' Step ` Rocks w/ footer - ``??.±• -` (size varies w/ avallablllty) 14.0 Vledium Gravel . - • . . - 50.0 9-12" Ston ....... . • . . . Earthen Pool ` Vegetation & - - Turf - Reinforcement 'v^ Matting . _.,? • • • • • 14.0 N Q) a? E o ? z C O 0- + Q) U O O + a N O L- O x rt O O E N N U C O 4N V 7-{ N L V ? ? U +J -C i O U z O U 3 0 N ~? O V) j M c M 4- V) O N O Q ~ > O n, L- O U) O CL ? O O U c O i ? O O_ Q O 7 F- (n yU? ? t n cC In O O co) U Z M U c o o z rn s 3 U C U - o - m o s o c H 0 c ? O ? O c c o O C Y O o c o s U <) m a- o 0 U) D 'x a) 7 a W O U) U U o O C O N E Q. 0 w w w a sue" Date DWQ?f R Li `-t, O Who Reviewed: Plan Detail Yncompiete ? Please provide a location map for the project. ? Please show all stream impacts including all fill slopes, dissipaters, and bank stabilization on the site plan. ?. Please show all wetland impacts including fill slopes on the site plan. Please indicate all buffer impacts on the site plan. ? Please indicate proposed lot layout as overlays on the site plan. Please indicate the location of the protected buffers as everlays on the site plan. Please locate all isolated or non-isolated wetlands, streams and other waters of the State as overlays on the site plan. ? Please provide cross section details showing the provisions for aquatic life passage. ? Please locate any planned-sower lines on the site plan. ? Please provide the location of any proposed stormwater management practices as required by OC ? Please provide detail for the stormwater management practices as required by GC ? Please specify the percent of project imperviousness area based on the estimated built-out conditions. ? Please- indicate all stormwaterLogtfalls on the site plan. ? Please indicate the diffuse flow provision measures on the site plan. ? Please indicate whether or not the proposed impacts already been conducted. Avoidance. and/or Minimization Not Provided ? The labeled as on the plans does not appear to be necessary. Please eliminate the . or provide additional information as to why it is necessary for this project. E] This Office believes that the labeled on the plans as can be moved. or reconfigured to avoid the impacts to the Please revise the plans to avoid the impacts. ?. This Office believes that the .labeled on the plans as can be moved or reconfigured to minimize the impacts to'the Please revise the plans to minimize the impacts. ? The stormwater discharges at the location on the plans labeled will.not provide difliso flow through the buffer because Pleasa revise the plans and provide calculations to show that diffuse flow Will be achieved through the entire buffer. If it is not possible to achieve. diflbse flow through the entire buffer then it may be necessary to provide stormwater management practices that remove nutrients before the stormwater can be discharged through the buffer. . Other r ?. The application foe was insufficient because over 150 feet of stream and/or.over 1 acre of wedand'impacts were requested. Please provide $ This additional fee must be recoivod before your application can be reviewed. ? Please complete Section(s) on the application. - ? Please provide a signed copy of the application. ? Please provide • copies of the application, . copies of the site plans and other supporting information: ? Please submit electronic CAD files showing , via, einail to ian.mcmillan@ncmail.net and. CD; Mitigation ? of compensatory mitigation is required for this project. Please provide a compensatory mitigation plan. The plan must conform to tharequirements in 15 A NCAC 2H'.0500 and must be appropriate to the type-of impacts proposed. ? Please indicate which 404 Permit the USACE would use to authorize this project.