Loading...
HomeMy WebLinkAbout20051339 Ver 1_Complete File_20050718O? VVn/? Michael F. Easley, Governor 0/ 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 July 25, 2005 DDQ Project # 05-1339 Yancey County Michele Lawhern, County Manager Yancey County Room 11, Courthouse Burnsville, NC 29714 Subject Property: Cane River (EWP DSR 2004-22 -Pinto) AUG2-2005 Approval of 401 Water Quality Certification with Additional ConditlonSINATER QUALITY E7t u;2iDSTO?7"%''?„JERE2, Dear Mrs. Lawhern: You have our approval, in accordance with the attached conditions and those listed below, to place fill within or otherwise impact 940 feet of streams for the purpose of streambank stabilization at the subject properties, as described within your application received by the N.C. Division of Water Quality (DWQ) on July 18, 2005. After reviewing your application, we have decided these impacts are covered by General Water Quality Certification Number(s) 3376 (3376). The Certification(s) allows you to use Nationwide Permit(s) 37 when issued by the US Army Corps of Engineers (USACE). In addition, you should obtain or otherwise comply with any other required federal, state or local permits before you go ahead with your project including (but not limited to) Erosion and Sediment Control, Non-discharge, and stormwater 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: 101 Wetlands Certification Unit 1650 Mail Service Center, Raleigh, North Carolina 27699-1650 ?321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604 Phone: 919-733-1786 /FAX 919-733-6893 /Internet http://h2o.enr.state.nc.us/ncwetlands ICLUE R an Equal Opportunity/Affirmative Action Employer- 50°6 Recycled110% Post Consumer Paper Yancey County: Page 2 of 6 July 25, 2005 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: Amount Approved Units Plan Location or Reference Stream 940 feet Cane River 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. r 4. No Sediment & Erosion Control Measures w/n Wetlands or Waters Yancey County: Page 3 of 6 July 25, 2005 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. 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/Wetlands Unit, North Carolina Division of Water Quality, 1650 Mail Service Center, Raleigh, NC, 27699-1650. 6. Construction in this creek and disturbance within a 25-foot trout buffer should be avoided during the January 1 to April 15 rainbow trout spawning period to avoid adverse effects of sediment on eggs and larvae. However, Wildlife Resources Commission will not object to construction of Natural Resources Conservation Service "urgent and compelling" sites during the spawning period provided these projects are, to the extent appropriate and practical, constructed by: (1) using flow diversion structures such as sand bags, (2) placing large-sized rock toes and filter cloth backing for stabilization sites before backfilling, and (3) excavating new channel alignments in dry areas. Construction at the other non-"urgent and compelling" sites should not occur during the spawning period to minimize the potential adverse effects of multiple construction activities on trout resources in this creek. 7. Sediment and erosion control measures must be implemented prior to construction and maintained on the sites to minimize sediment in downstream areas. Seeding for a temporary cover of wheat, millet, or similar annual grain or permanent herbaceous cover should occur on all bare soil within five (5) days of ground disturbing activities to provide long-term erosion control. The projects should be accomplished in stages instead of leaving large tracts exposed to further storm events. Erosion control matting should be used in conjunction with appropriate seeding on disturbed soils in steep slope and riparian areas. Matting should be secured in place with staples, stakes, or, wherever possible, live stakes of native trees. Straw mulch and tall fescue should not be used in riparian areas. In addition, because of an anticipated difficulty in establishing ground cover during the winter, reseeding should be conducted, as necessary, in the spring-time with a native annual and perennial seed mix with a temporary nursery crop of wheat, millet or other grain. Yancey County: Page 4 of 6 July 25, 2005 8. Only clean, large, angular rock, large woody material, or other natural stream design materials and techniques should be used for bank stabilization. Rock should not be placed in the stream channel in a manner that constricts stream flow or that will impede aquatic life movements during low flow conditions. Filter cloth should be placed behind large rock that is used for bank stabilization. Properly designed rock vanes should be constructed wherever appropriate on bank stabilization and channel realignment stream reaches to improve channel stability and to improve aquatic habitat. Root wads should be installed low enough in the bank so that a significant portion (at least one-third) the root wad is inundated during normal flows. 9. The channel should be restored to a more stable condition. However, under no circumstances should river rock, sand or other materials be dredged from the stream channel under authorization of this permit except, if necessary, in the immediate vicinity of the eroding banks for the explicit purpose of anchoring stabilizing or flow/grade control structures or for reestablishing the natural and more stable stream channel dimensions. Stream bed materials are unstable in flowing-water situations and are unsuitable for bank stabilization. In stream dredging has catastrophic effects on aquatic life and disturbance of the natural form of the stream channel can cause downstream erosion problems. The natural dimension, pattern, and profile of the stream upstream and downstream of the permitted area should not be modified by widening the stream channel or changing its depth. 10. Stabilization measures should only be applied on or near existing erosion sites, leaving other stable stream bank areas in a natural condition. Grading and backfilling should be minimized and tree and shrub growth should be retained where possible to ensure long term availability of stream bank cover for aquatic life and wildlife. Backfill materials should be obtained from upland sites except in cases where excess stream bed materials are available. Berms should not be permitted because they block the floodplain, constrict and accelerate flood flows, and often fail and sometimes impede drainage during large flood events. 11. Repairs to eroded banks should be conducted in a dry work area where possible. Sandbags or other clean diversion structures should be used where possible to minimize excavation in flowing water. Channel realignments should be constructed by excavating the new channel from downstream to upstream before connecting it to the old channel. 12. Heavy equipment should be operated from the bank whenever possible. All mechanized equipment operated near surface waters should be inspected and maintained regularly to prevent contamination of stream waters from fuels, lubricants, hydraulic fluids or other toxic materials. Equipment used in stream channel must be clean, new or low hour equipment. 13. Disturbed stream banks and a 25-foot vegetated zone, or the widest width that is practical under the site conditions, should be restored where possible along the construction sites to natural riparian conditions with native trees and shrubs (e.g., silky dogwood, rhododendron, dog hobble, red maple, silky willow, tag alder, black willow, sycamore) to provide long-term bank stability and stream shading. Note, silky dogwood, silky willow and black willow can be planted as live stakes collected during the dormant growing season. Cuttings should be randomly planted on four (4) foot centers from the waters edge to the top of the bank. Trees should be planted on ten (10) to twelve (12) foot centers. Stream banks in these areas should also be seeded with a native annual and perennial seed mix with a temporary nursery crop of wheat, millet or other grain. 14. If pasture along the stream outside of the riparian zone areas. 15. Diffuse Flow Yancey County: Page 5 of 6 July 25, 2005 is to be used for grazing, a fence must be constructed and the stream to prevent livestock from entering these All constructed stormwater conveyance outlets shall be directed and maintained as diffuse flow at non-erosive velocities through the protected riparian zones such that it will not re-concentrate before discharging into a stream. 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. 16. Riparian Zone Replanting Replanting of vegetation within disturbed areas located within 30 feet of the streambank associated with any land disturbing activity, repair, replacement and/or maintenance must be done in a manner consistant with the Guidelines for Riparian Buffer Restoration immediately following construction. (Please see attached.) 45. Deed Notifications Deed notifications or similar mechanisms shall be placed on all retained jurisdictional wetlands, waters and protective woody riparian zones 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. 17. Turbidity Standard The turbidity standard of 10 NTUs (Nephelometric Turbidity Units) shall not be exceeded as described in 15 A NCAC 2B. .0200. Appropriate sediment and erosion control practices must be used to meet this standard. 18. No Sediment and Erosion Control Measures in Wetlands 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 or locally delegated program has released the project. Yancey County: Page 6 of 6 July 25, 2005 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. This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have any questions, please telephone Cyndi Karoly in the Central Office in Raleigh at 919-733-9721 or Mr. Kevin Barnett in the DWQ Asheville Regional Office at 828-296-4657. Sincerely, 7 r Alan W. Klimek, P.E., Director Division of Water Quality AW K/khb Enclosures: GC 3376 Certificate of Completion Guidelines for Riparian Buffer Restoration .cc: Stu Ryman, Altamont Environmental, Inc. 50 College Street Asheville, NC 28801 USACE Asheville Regulatory Field Office DWQ Asheville Regional Office DLR Asheville Regional Office File Copy Central Files Filename: 05-1339.EWP.CaneRiver-Pinto.Approval Triage Check List Date: 07/20/05 Project Name: Yancey County EWP - Cane River DSR 2004-22 Pinto DWQ #:05-1339 Kevin Barnett, Asheville Regional Office County: Yancey To: 60-day Processing Time: 7/18/05 to 9/16/05 From: Cyndi Karoly Telephone: (919) 733-9721 The file attached is being forwarded to you for your evaluation. Please call if you need assistance. ? Stream length impacted ? Stream determination Wetland determination and distance to blue-line surface waters on USFW topo maps ? Minimization/avoidance issues ? Buffer Rules (Neuse, Tar-Pamlico, Catawba, Randleman) ? Pond fill Mitigation Ratios ? Ditching ? Are the stream and or wetland mitigation sites available and viable? ? Check drawings for accuracy Is the application consistent with pre-application meetings? ? Cumulative impact concern Comments: As per our discussion regarding revision of the triage and delegation processes, please review the attached file. Note that you are the first reviewer, so this file will need to be reviewed for administrative as well as technical details. If you elect to place this project on hold, please ask the applicant to provide your requested information to both the Central Office in Raleigh as well as the Asheville Regional Office. As we discussed, this is an experimental, interim procedure as we slowly transition to electronic applications. Please apprise me of any complications you encounter, whether related to workload, processing times, or lack of a "second reviewer" as the triage process in Central had previously provided. Also, if you think of ways to improve this process, especially so that we can plan for the electronic applications, let me know. Thanks! r { l ql yy i Office Use Only: Form Version May 2002 5 9 1 3 3 USACE Action ID No. DWQ No. 0 U k,l aiiy lJai ucuiar nein is not appiicamc to nits 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 2. Nationwide, Regional or General Penn it Number(s) Requested: Nationwide 37 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 Wetlands Restoration Program (NCWRP) is proposed for mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), 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 Enviromnental Concern (see the top of page 2 for further details), check here: ? II. Applicant Information 1. Owner/Applicant Information 0 Name: MicheleLcnvIien4 County Manager Mailing Address: 110 Town Square Yancey County Courthouse, Room 11 JUL l? 1 R ZOQ Burnsville, NC 28714 pENR. AND Telephone Number: (828) 682-3971 Fax Number: (828) 682-4301 `, ? Si6R' ASR ?NNr N E-mail Address: m.laivherii@couiityntanager.yaiiceycounty. of g 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: Stuart A. Ryinan Company Affiliation: Altmnont Environlnental, Inc. Mailing Address: 50 College Street, Asheville, NC 28801 Telephone Number: (828) 281-3350 Fax Number: (828) 281-3351 E-mail Address: srymaii@altarnontenviroiunental.com 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, D`'VQ 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: Cane River EWP DSR 2004-22 Pinto 2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A 3. Property Identification Number (Tax PIN): See attached Table 1 4. Location County: Yancey County Nearest Town: Burnsville Subdivision name (include phase/lot number): N/A Directions to site (include road numbers, landmarks, etc.): From Burnsville, follow NC Highway 197 South approximately 6 miles. Take a right onto Riverview Road. Riverview Road will immediately cross the Cane River. Take the first left after the bridge. Continue on approximately 1 mile to where the road dead-ends into a two story brown house on the right, with a small red barn on the left. See attached Figure 1. Site coordinates, if available (UTM or Lat/Long): 35.84360N, 82.3117°W (approximate center of pr oject area) (Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) 5. Property size (acres): See attached Table I 6. Nearest body of water (stream/river/sound/ocearr/lake): Cane River 7. River Basin: French Broad (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/.) Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: Land use in the vicinity of the proposed project site consists of agricultural uses, including trout farms. This portion of Cane River was heavily impacted during Tropical Storms Fiances and Ivan. In this location, the stream is clogged with woody and non-native debris, reducing the hydraulic capacity of the channel. In the location of the proposed bank repair the river has shifted approximately 150 feet to the west of the original channel. Tivo trout ponds were destroyed, and the relocated channel threatens the stability of existing structures. 8. Describe the overall project in detail, including the type of equipment to be used: This Pre-Construction Notification form addresses only one area of streambank stabilization and relocation on DSR 22. DSR 22 covers damage fr oin Tropical Storms Frances and Ivan Jrorri the HIVY 197 bridge at Murchison to the confluence of the Cane River and Cattail Creek. The area addressed by this submittal is entirely located on the parcels shown on Figure 2, and detailed in Tables 1 and 2. The location of the streambank repair area is provided ill Figure 2. Representative typical photographs of dainage for the streambank stabilization area are included as Figures 3-6. Repairs for° the area are detailed in Figures 3A-6A. Target cross-section for° this section is included in Figure 7. Typical in-stream structure detail is included in Figure 8. Since the entire site is located on agricultural land, a formal approval of the Erosion and Sediment Control Plan elements of this proposal is not required, nor is a Trout Waiver required. Work will take place on approximately 940 linear feet of channel. The primary issue to be addressed at the Trout Pond reach is channel avulsion into the ponds during the September 2004 floods. The rnovenrent of the channel to the west side of the valley has removed the trout ponds and has eroded portions of the road which leads along the side of the river to a set of rental houses. There is also a power line, which now has one pole on what is now an island in the middle of the wide channel. The primary constraint in this location is the technical difficulty inherent in stabilizing a channel that has meandered to the extent that the Cane River has in this location. The streanrbed loses significant grade as it drops into the aligrunent of the former ponds. To re-align the stream to the east (river-right), significant amounts of fill would have to be placed to buildup the ponds/current stream channel. These sediments would be prone to erosion and transport duriiig high flows. All work will be per formed as per conversations between Altainont Environnierntal, US Arnry Corps of Engineers, NC Wildlife Resources Commission, and on-site consultation with the US Fish and Wildlife Service personnel on other EWP sites in this watershed. Work will include streambank stabilization in the area described below as well as localized removal of organic and mineral debris and streambank re-vegetation. Cane River is classified as `WSII', `Trout' waters and High Quality Waters (HQUI) throughout the project area. No listed species or their habitats occur in this area according to the US Fish and Wildlife Service response to the EWP Environmental Checklist on February 2, 2005. The overall goals of work at this location are to 1. Stabilize the channel in the post flood condition, directing low flows to river-right while allowing storm flows to engage the river left channel. 2. Re-establish a larger channel ort the east (right) side of the inset valley. The channel geometry and cross-sectional area will be based on regional curve analysis and evaluation of relatively undisturbed portions of the Cane River upstream and downstream of the site. 3. Provide a medium to high flow channel along the current path of the main channel. 4. Protect the unpaved access road along the west side of the valley. To accomplish these goals, it will be necessary to utilize a combination of rock rip-rap, bioengineering, in-stream structures, and channel bed excavation. Property owner information for all proposed work areas is included in Table 1 and Table 2. The work addressed in this application is intended to improve the post flood hydraulic capacity of the stream reaches discussed and stabilize severely eroded streambanks that are threatening structures. The proposed actions are not intended to enhance existing conditions or restore the stream reaches using natural channel design techniques. Such activities would require detailed engineering evaluation and design, which are beyond the intent of the EWP program. Equipment used to accomplish the above tasks includes: one or more 15 ton dump trucks, one or more hydraulic track mounted excavators with thumb, one or more dozers with a six-way blade; and chainsaws. Establishment of vegetation on the disturbed channel banks will be necessary in some locations in the vicinity. Vegetation establishment will consist of a combination of hydroseeding and live staking. A primary concern for° the excavation of channel bed materials is the impact to turbidity within the Cane River. It may be possible to separate excavators from flow via the use of temporary berms, pipes, and water pumps. However, given the significant quantities of water in the system, and the high permeability of soils in this reach, excavating the charnel bed in this location with the excavators out of the water is unpractical. Therefore, the work will be sequenced without attempt to separate the equipment from flowing water, and attention will be focused on an efficient work pattern that will limit the time necessary for equipment to be in the water. The following construction sequence will be utilized. The total area of impact within the active channel banks in this reach will be approximately 4.0 acres. The volurue of cut and fill will be approximately balanced in this reach as any excavation f om the river-right portion of the channel will be used to re-contour the river-left portion of the channel. At all areas the work will proceed from downstream to upstream to reduce sediment loading. All staging areas will be less than half an acre in size. TVork will proceed as follows at each work area (as applicable): 1. Flag the work limits. 2. Mark live trees and shrubs to be protected 3. Construct temporary construction erntrarncelexits, where necessary. 4. Install sediment fence around staging areas. 5. Grade new roadbed and place rock in channel. Stabilize with coir° and plantings. 6. Install sand bag berm to direct all flow into the western (river-left) channel. 7. Install second sand bag berm at the downstream end of the eastern channel to prevent backwater from the western channel. 8. Excavate river-right bar and river-right channel. 9. Modem sand bag berm to direct flow to the right. 10. Install in-stream structure. Structure will consist of a modified "TV" weir that will allow flows to engage the river-left channel at higher stages. 11. At the end of each workday install temporary erosion control fabric or matting on exposed soil and secure using removable stakes or sandbags. 12. During construction, place loge boulders at the toe of repaired streambarnks where necessary. 13. Fill and compact behind boulders andlor coir logs. Cover with topsoil, install erosion control rnat, and seed. Permanent erosion control mats will be constructed of fiber or a coir fiber mixture fabric for maximum erosion protection, vegetation establishment assistance, and for minimal impact on wildlife. 14. Inspect and maintain repairs. A site-specific engineering design based on a specific storm event was not connpleted because the EiVP program is not intended to fund stream restoration design or construction work Rather, the EIVP progran is designed to quickly stabilize eroding stream banks to prevent on- going erosion, sedimentation and possible loss of property or life. Because natural channel design methods are beyond the scope of the ETVP program, published literature values were consulted in order to specify the bank stabilization and erosion control materials and methods described in this document. For example, we have specified that falter cloth will be placed behind large rock used for strearnbank stabilization or for in-stream structures to increase the stability of the repair measures and minimize sediment loading to the stream. Clean, large, angular rock, coir logs, large woody material, and natural fiber erosion control mats will be used for strearnnbarnk stabilization. Once site construction has ceased, the banks of the stabilized channel will be seeded with a native foodplain seed mix and the high stress areas will be lined with erosion control (EC) matting to ensure bank stability. Furthermore, sod matting will be grubbed on-site and used (when available) to line the near bank regions of the constructed/stabilized channel to provide immediate stability. Live stakes and matting staples will be used to secure the EC fabric/sod- matting in these high stress areas. Broadcast seeding rates will be as specified from the local nursery, generally I5-20 lbs/acre depending on species. With landowner permission, native shrub and tree species will be planted throughout the project reach at a rate of 320 stems/acre, securing near bank areas and providing future shading to the channel. Existing woody vegetation will be preserved to minimize project impacts. The following steps will be observed with respect to vegetation: 1. Exposed soil will be covered with erosion control matting at the end of every workday. Mats will be secured using removable stakes. 2. The project riparian zone and/or buffer areas will be re-vegetated with a combination of native trees, shrubs and herbs/grasses. All disturbed areas will be seeded with a temporary native grass mixture immediately following completion of the work in those areas. Straw mulch and tall fescue will not be used in riparian areas. 3. When possible sod will be taken ftoin adjacent areas (with landowner permission) and placed on exposed soil to provide immediate stabilization within five days of ground disturbing activities. 4. If sod is not available on-site temporary seeding will occur on all bare soil within five days of ground disturbing activities to provide long-term erosion control. If sod is used, the bare area left after removal of sod will be planted. 5. Re-seeding will be conducted, as necessary, with a native annual and perennial seed mix with a temporary nursery crop of wheat, millet, or other grain. 6. Woody vegetation will be planted during the normal growing season assuming landowner permission. In addition to construction sequencing, we propose to utilize standard Best Management Practices (BMPs) such as those described in the North Carolina Erosion and Sediment Control Manual. We anticipate that some combination of the following BMPs will be utilized. 1. Sediment Fence. Sediment fence will be utilized to delineate the work materials staging area and refueling areas. 2. Temporary Berms. Berms constructed of sand bags, soil, straw bales, or geotextile may be utilized to separate flowing water from the work site. These berms shall be constructed to avoid and minimize changes to the velocity and sediment transport capacity of the flow of water through the constriction. 3. Erosion Control Fabric. Typically, 700-series Coir Cloth will be utilized along channel banks to provide immediate shear strength after fine grading is complete. Coir cloth has distinct advantages over synthetic materials because it will: (1) allow planting'of grass seed and live stakes, and (2) will degrade over tune. 4. Veizetation. In general, tlvo types of vegetation will be used to provide short- and long-term stability for disturbed areas. Grass seed, applied with straiv and tackifrer in a hydroseed slurry is intended to provide short-term (this year) stability. Live stakes are intended to develop into a riparian vegetation corsurrunity over tune to stabilize the channel through tune and a range ofjlows. 5. Bio-Bags. A pump and geotextile bag system could be utilized to de-1vater active construction areas. Turbid water is purrrped out of the job site, through the frlter^ bag onto an approved discharge location. 6. "Dirty" Rip-Rap. In addition to placing rock, in some instances we will also backfrll a portion of the newly-rocked surface with finer materials that could support livestakes 9. Explain the purpose of the proposed work: The work being described is exigency work under the Emergency TVatershed Protection program to protect existing property and structures. Streanrbank and channel stabilization will also prevent fu rther erosion and sedimentation to the Cane River resource. 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. N/A 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. No 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. The applicant must also provide justification for these impacts in Section VII below. All proposed impacts, permanent and temporary, must be listed herein, and must be clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and peremlial) must 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: Proposed impacts include streambank stabilization. Precautions will be taken to keep heavy equipment out of the stream channel except where absolutely necessary to install bank stabilization measures. Work will be conducted in the dry to the extent practicable. Sediment and erosion control measures, including sand bags, silt fences and reseeding, will be utilized to minimize sedimentation. 2. Individually list wetland impacts below: There will be no wetlands impacted at this site. Wetland Impact Site Number (indicate on ma) Type of Impact* Area of Impact (acres) Located within 100-year Floodplain** (yes/no) Distance to Nearest Stream (linear feet) Type of Wetland*** * List each impact separately and identify temporary impacts. 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. ** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps (FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or online at http://www.fema..Pov. *** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond, Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only). List the total acreage (estimated) of all existing wetlands on the property: None Total area of wetland impact proposed: N/A 3. Individually list all intermittent and perennial stream impacts below: Length of Average Width Stream Impact Type of Impact' Impact Stream . of Stream Perennial or Location (linear feet) Name** Before Impact Intermittent? (feet) Channel and Bank Area 1 Stabilization; Channel 940 Cane River 80 Perennial Reconfiguration * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap, dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain), stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, ditch ing/straightening, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. ** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at www.us,gs.gov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.tonozone.com, www.mapquest. coin, etc.). Cumulative impacts (linear distance in feet) to all streams on site: 9751inear feet 4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.) below: There will be rao impacts to open waters. Open Water Impact Site Number (indicate on ma) Type of Impact* Area of Impact (acres) Name of Waterbody (if applicable) Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc.) * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging, flooding, drainage, bulkheads, etc. 5. 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., danl/embankment, excavation, installation of draw-down valve or spillway, etc.): N/A Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stonnwater requirement, etc.): NA Size of watershed draining to pond: N/A Expected pond surface area: N/A 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 were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. On behalf of Yancey County, Altaniont will provide contractors engaged in the implementation of this work both written and verbal instructions of all impact avoidance statements provided below. All heavy equipment will be kept out of the stream channel during streambank stabilization and stream relocation work, except where absolutely necessary to install bank stabilization measures. Disturbance of channel bottom and banks and equipment access areas shall be held to the minimum necessary to allow for bank stabilization and debris removal sufficient to restore the hydraulic capacity of the stream channel. Temporary grass cover shall be planted on all bare soil within 5 days of ground disturbing activities. Provided landowners give permission, herbaceous and woody shrub and tree vegetation will also be installed on the riverbank upon completion of bank stabilization work Yancey County will provide a site Manager to routinely inspect and supervise contractor work to help ensure impact avoidance instructions are being followed. 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 Pennits, published in the Federal Register on March 9, 2000, mitigation will be required when necessary to ensure that adverse effects to the aquatic enviroiunent 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 NCWRP concurrence shall be placed on hold as 10 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://l12o.eiir.state.nc.us/ncwet]ands/strmv ide.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 Wetlands Restoration Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at (919) 733-5203 to determine availability and to request written approval of mitigation prior to submittal of a PCN. For additional information regarding the application process for the NCWRP, check the NCWRP website at http://h2o.enr.state.ne.us/wrp/index.htin. If use of the NCWRP is proposed, please check the appropriate box on page three and provide the following information: Amount of stream mitigation requested (linear feet): N/A Amount of buffer mitigation requested (square feet): N/21 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) Does the project involve an expenditure of public (federal/state) funds or the use of public (federal/state) land? Yes ® No ? 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 enviromnental documentation. Yes ? No 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 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify)? Yes ? No ® If you answered "yes", provide the following information: 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 3 2 1.5 Total * Zone 1 extends out 30 feet perpendicular from 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, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or.0260. XI. Stormwater (required by DWQ) Describe impervious acreage (both existing and proposed) versus total acreage on the site. Discuss storinwater controls proposed in order to protect surface waters and wetlands downstream from the property. Impervious acreage will not change. Erosion and sedimentation prevention and control will be maintained throughout this project primarily through proper water management, construction sequencing, proper staging and stockpiling of materials, and the maintenance, at all times, of suitable channel capacity for expected flow events. Equipment, fuels, lubricants, or other potential sources of water pollution will not be stored in areas that could be flooded during this project. 12 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. Portable facilities shall be provided at the work site. 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. 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 pen-nits. 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). N/A --,- -oS" Applicant/A-ent's Sibnati 4 e Date (Agent's signature is valid only ifs, n authorization letter from the applicant is provided.) 13 Michele P. Lawhern, County Manager John Renfro, Chairman Y.A.NCEY COUNTY Blaine Wean Hicks, Commissioner hitson, Commissioner County Courthouse, Room 11 • Burnsville, North Carolina 28714 PHONE: (828) 682.3971 • FAX: (828) 682-4301 • EMAIL: mlawhern@yancey.main.nc.us November 10, 2004 Altamont Environmental, Inc. 50 College Street Asheville, North Carolina 28801 Stu, At the regular monthly meeting of the Yancey County Board of Commissioners last evening, the enclosed contract for professional services was executed, relative to EWP Section 216 work. Pursuant to, or in the spirit of the further intent of this contract, this Yancey County Local Government hereby authorizes Altamont Environmental, Inc. to sign and execute all necessary permits and coordinate communications with said regulatory agencies. If there should be any questions about the above, please feel free to call me at any time. Yancey County Manager Work: 828/682-3971; Cellular 828/284-0746 Sin ely, i h Lawhern ele P Table 1. Affected Parcels EANP DSR 2003-22 Yancey County, North Carolina MAP ID PIN OWNER Property ADDRESS CITY STATE ZIP Exigency? CHANNEL STEAMBANK ROCK DEBRIS WOODY DEBRIS COMMENTS Size acres REALIGNMENT STABILIZATION REMOVAL REMOVAL Approx 150 Ilnear It stream GREEN COVE frontage 34 071700779869000 HECKROTTE MARY BOONE 6.29 411 WALNUT ST # 2628 SPRINGS FL 32043 N • • • • Approx 150 linear It stream BLOOMFIELD frontage 29 0717OC931164200 PINTO DANA V TRUSTEE 6 99 P.O. BOX 955 HILLS MI 4832-750- N • • • • Approx 500 onear If stream frontage 27 071700832513000 PINTO ERNEST 18.03 1278 RIVERVIEW RD BURNSVILLE INC 29714 N • • • • Approx 150 linear It stream frontage 25 0717OC88320000 HOLLIFIELD WILLIAM THAD & DORIS 6 70 1170 RIVERVIEW RD BURNSVILLE NC 28714 N • • • • App"' 350 li near ftstream frontage 26 07170G391174'00 HOLLIFIELD WILLIAM THAD & DORIS 18 Go 1170 RIVERVIEW RD BURNSVILLE NC 28714 N • • • • Approx 300 Imear ft stream frontage 21 071700891174000 HOLLIFIELD WILLIAM THAD & DORIS 18.00 1170 RIVERVIEW RD BURNSVILLE NC 28714 N • • • • Approx 6501m- It stream frontage 15 071700994967000 WILSON BENJAMIN B 29. G6 29 CATTAIL CREEK RD BURNSVILLE NC 28714 N • • • • Approx 170 linear It stream frontage 23 071700937134000 ATKINS EDGAR 4.05 12040 HWY 197 S BURNSVILLE NC 28714 N 0 0 0 0 Approx 350 hnear ft stream frontage 31 071700981164000 WILSON BILLY BROOKS & KATIE 4.00 19 PENSACOLA SCHOOL RD BURNSVILLE NC 23714 N • • • • Approx 3150 linear It Stream homage 35 0718nn6,37323003 MILLER RAY V & MARY ANNE 393.17 9449 STATE HWY 197 S BURNSVILLE NC 23714 N • • • • P9Yancey County EVVP/DSRs/DSR 21,22/PCNs/DSR 22/parcels_cane 22_acoe TABLE 2 REPAIR AREA COORDINATES CANE RIVER DSR 2004-22 Pinto YANCEY COUNTY, NORTH CAROLINA Cane River EWP DSR 2004-22 Pinto Repair Area Coordinates Area Latitude Longitude 1 35.8436 82.3117 -/y,??? ? ?• sir`'-??'? ? '? ?I r? w ?N ?1 (?lJ????( l)1) Project Location l'loo`. 7?'r'Al \?i??J\ \ jar ?/ \ ?; ;? _?"-? } ) / R• ?L%` gyp, /?? Figure 1 Site Location Map April 28, 2005 USGS Mt. Mitchell Quadrangle E N G I N E E R I N G $ H Y D R O G E O l O O Y Scale 1 inch = 2000 feet 50 COLLEGE STREET, Ast[EVILLE, NC 28801 Cane River - EWP DSR 2004-22 - Pinto TEL. 828.281.3350 FAC.828.281.3351 Yancey County, North Carolina www.altamontenvironmental.com NTemplatesTigures in WordTigure Border.doc ?:? r,9rw?f-?•••wt1a {,• y M.M.. yi.w 4,.? _ Current flow directions Figure 3 Cane River DSR No. 2004-22 Pinto Yancey County, North Carolina 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL. 828.281.3350 FAC.828.281.3351 www.altamontenvironmental.com ar -- -- - Y i i ? - '. _ yak`:' TNx .LA t •w? t .. xt8iu-„T .. ? f -.? -r' '!" roe- .. • s i' ?a.?f?ylr`C ?( ...,r--..?. 4+ _T ,g". Kw = aa STREAM STABILIZATION FIGURE N I N R I N H Y R Y MEASURES _ 50 COLLEGE STREET, ASHEVILLE, NC 28801 L.8 2813350 PAC828.2m- T EWP 2004-22-PINTO 3 w .?tiv.altainontenvironmental.co.com a CANE RIVER RAWN ZAN PRICE _ OJECT MANAGER: STU RYMAN NOT TO SCALE YANCEY COUNTY, NC . r :JENT: YANCEY COUNTY ? _ ? ,'? t w - 4TE: 07/01/05 FILE PATH: P: \YANCEY-EWP \DSRS\DSR 22 - CAN: R-R \138L Plum PCN\ CONCEPTUAL DESIGN PN)TVo22-Plwo.MG y{ti X - ,? Upstream of project Former Trout Pond Area Flow Direction Deflect flow to river right and create high flow channel on river left Figure 4 Cane River DSR No. 2004-22 Pinto Yancey County, North Carolina 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL. 828.281.3350 FAC.828.281.3351 www.altamontenvironmental.com a f ? ' tR k 14 3. jk ow, Fla= amm r ?-.4! r w_' 1t. ?.!?+4 • ? ? SUNIsm- 44 r MIKE' si>r ?t ??-` k? ? ?. "- - gyp. ?»y i.? ? ?a! ? - s xc ? ' ? ? '? 1 STREAM STABILIZATION FIGURE '- } N G I N E E K I N G H Y R G Y E O MEASURES :. _ .. 777 „sr 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL.82 3 EWP 2004-22-PINTO 4a .alt= wWtcnvvonmenta.c ironmental.com on CANE RIVER rte. " ` DRAWN BY: ZAN PRICE NOT TO SCALE YANCEY COUNTY NC ,+ s PROJECT MANAGER: STU RYMAN , CLIENT: YANCEY COUNTY DATE: 07/01/05 FILE PATH: P:\YAMEY-EWP\DSRS\DSR 22 - Cue Rl-\BEL IF- PCN\ CaKEP - DEs - R-S22p-MG 1 4 r?- ., r v 401 ..!r.? sta Figure 5 Cane River DSR No. 2004-22 Pinto Yancey County, North Carolina 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL. 828.281.3350 FAC. 828.281.3351 www.altamontenvironmental.COm ? '??` - - ? "?,??? I' ij I • r a t i : _ - r ? r? a ?Y. ?, t able,. ?Y ?a ,i t 1 rt - 1''si t. Aiir ,rar m fog. v'. _ t ` ?f ?•'?df. 37e° ??!?? a !?. ^r _„' ?' ,mot r' .. j V. _-._? .rya; :._ • ? t ?: '? ??" ? ,. E N G I N E R I NG & H Y D R 0 G E 0 L 0 G Y 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL.828.281.3350 FAC.828.281.3351 y yam` - www.altamontenvironmentalxom Are _:7?AWN BY: ZAN PRICE Wow MANAGER: STU RYMAN NOT TO SCALE CLIENT: YANCEY COUNTY DATE: 07/01/05 _ y f ? -? Imo! STREAM STABILIZATION FIGURE MEASURES EWP 2004-22-PINTO 5a CANE RIVER YANCEY COUNTY, NC FILE PATH: P: WVU -EWP\DSRSTSR 22 - CA RI-\BBL Porto PCN\ CartEVrUAL DESIGN P-S-222rRO - A Figure Figure 6 Cane River ENGINEERING & HY0R0GEOLOGY DSR No. 2004-22 Pinto 50 COLLEGE STREET, ASHEVILLE, NC 28801 Yancey County, North Carolina TEL. 828.281.3350 FAC. 828.281.3351 www.altamontenvironmental.com il L w- 461- t -.Mw '? rw FE- -N G I N E R I N & H Y D R O G E O L O G Y 50 COLLEGE STREET, ASHEVILLE. NC 28801 TEL828.2813350 FAC.828.281.3_51 -. altamc ntenv iro=cntal. com DRAWN BY: ZAN PRICE PROJECT MANAGER: STU RYMAN NOT TO SCALE CLIENT: YANCEY COUNTY DATE: 07/01/05 STREAM STABILIZATION FIGURE MEASURES EWP 2004-22-PINTO 6a CANE RIVER YANCEY COUNTY, NC LE PATH. P. \1-v-EWP,D5R5\OSR 22 - CASE RI-\BBL PINTO PCN\ CdKEPNPI DESIGN P S-22-PlNTO.OWG Figure 7. Cane River DSR 2004-22 Pinto Target Cross-Section 20 18 16 14 12 m m w ,? 10 a m 0 8 6-- 4 2 0 0 20 40 60 80 100 120 140 160 Width (feet) i A A .;L % .P. 1 ^l?'Y'\ l f? SCWR POOL 1/4 " 1/2 1/4 CHANNEL I CHANNEL CHANNEL WIDTH WIDTH WIDTH 3 0 LL U. 0 Z O r- U w 07 O SOURCE: BBL ENVIRONMENTAL SERVICES, INC A' t LEGEND: 0 FOOTER ROCKS PLACED BELOW GRADE 1 CROSS-SECTION A: DOWNSTREAM END OF STRUCTURE A' 2 CROSS-SECTION B: ALONG ROCK VEIN UPPER ELEVATION OF ROCK SHALL NOT EXCEED HALF OF BANKFULL DEPTH1 APPRO)MIATE a.Al JMI I)U1 Q SLOPE OF ROCKS BETWEEN 2 AND 7%? NOTES: 1. DRAWING IS CONCEPTUAL AND IS NOT TO SCALE. 2. WEIR ROCKS TO BE INSTALLED AT 20 TO 30 DEGREE ANGLE (PLAN VIEW) FROM CHANNEL BANK. 3. TOP SLOPE OF ROCK EMPLACEMENT SHALL BE BETWEEN 2 AND 7% (DETAIL 2) 4. ROCK PROJECTION INTO FLOW SHALL NOT EXCEED 40 PERCENT OF ROCK DIAMETER. 5. THE CONCEPT FOR THE W WEIR WAS DEVELOPED BY WILDLAND HYDROLOGY AND SUMMARIZED IN UNDATED WHITE PAPER BY D. ROSGEN. NFARMWEERING &HYDROGEO`• 50 COLLEGE STREET. ASHEVILLE. NC 28801 TEL 828.281.3350 FAC-828.281.3351 www.altamontem uomnental. coin DRAWN BY: ZAN PRICE I PROJECT MANAGER: STUART RYMAN SCALE: NTS CLIENT: YANCEY COUNTY W WEIR I NSTREAM FIGURE STRUCTURE DETAI L N18 YANCEY COUNTY, NC FILE PATH: P:\YANCEY-EWP\DSRS\DSR 22 - CANE RIVER\ W WEIR DETAIL.DWG Office Use Only: Form Version May 2002 :'005 1 339 USACE Action ID No. DWQ No. (ti 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 2. Nationwide, Regional or General Permit Number(s) Requested: Natiomvide 37 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 Wetlands Restoration Prograin (NCWRP) is proposed for mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), 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 1. Owner/Applicant Information Name: MicheleLmvhen; County Manager Mailing Address: 110 Town Square D R' Yancey County Courthouse, Room 11 Burnsville, NC 28714 JUL 1 S 2005 Telephone Number: (828) 682-3971 Fax Number: (828) 6? WATER QUALWY .1 AND STORMWATER BRANCH E-mail Address: »a.lawhern@couiityrnanager.yanceycouizty.org 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: Stuartfl. Ryinan Company Affiliation: Altamont E ivironinental, Inc. Mailing Address: 50 College Street, Asheville, NC 28801 Telephone Number: (828) 281-3350 Fax Number: (828) 281-3351 E-mail Address: srynaaiz@altamontenviroflmental. com T f . . 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: Cane River EWP DSR 2004-22 Pinto 2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A 3. Property Identification Number (Tax PIN): See attached Table I 4. Location County: Yancey County Nearest Town: Burnsville Subdivision name (include phase/lot number): N/A Directions to site (include road numbers, landmarks, etc.): From Burnsville, follow NC Highway 197 South approximately 6 miles. Take a right onto Riverview Road. Riverview Road will immediately cross the Cane River. Take the first left after the bridge. Continue on approximately 1 mile to where the road dead-ends into a two story brown house on the right, with a small red barn on the left. See attached Figure 1. Site coordinates, if available (UTM or Lat/Long): 35.84360N, 82.3117°W (approximate center of project area) (Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the coordinates for Bach crossing of a distinct waterbody.) 5. Property size (acres): See attached Table 1 6. Nearest body of water (stream/river/sound/ocean/lake): Cane River 7. River Basin: French Broad (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://l12o.enr.state.ne.us/admii-i/maps/.) Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: Land use in the vicinity of the proposed project site consists of agricultural uses, including trout fauns. This portion of Cane River was heavily impacted during Tropical Storms Frances and Ivan. In this location, the stream is clogged with woody and non-native debris, reducing the hydraulic capacity of the channel. In the location of the proposed bank repair the river has shifted approximately 150 feet to the west of the original channel. Two trout ponds were destroyed, and the relocated channel threatens the stability of existing structures. 8. Describe the overall project in detail, including the type of equipment to be used: This Pre-Construction Notification form addresses only one area of strearnbank stabilization and relocation on DSR 22. DSR 22 covers damage fr-orrn Tropical Storms Fiances and Ivan fr-onn the HWP 197 bridge at Murchison to the confluence of the Cane River and Cattail Creek. The area addressed by this submittal is entirely located on the parcels shown on Figure 2, and detailed in Tables I and 2. The location of the strearnbank repair area is provided in Figure 2. Representative typical photographs of damage for the streanbannk stabilization area are included as Figures 3-6. Repairs for the area are detailed in Figures 3A-6A. Target cross-section for this section is included inn Figure 7. Typical in-stream structure detail is included in Figure 8. Since the entire site is located on agricultural laud, a formal approval of the Erosion and Sediment Control Plan elements of this proposal is not required, nor is a Trout Waiver required. Work will take place on approximately 940 linear feet of channel. The primary issue to be addressed at the Trout Pond reach is channel avulsion into the ponds during the September 2004 floods. The movement of the channel to the west side of the valley has removed the trout ponds and has eroded portions of the road which leads along the side of the river to a set of rental houses. There is also a power line, which now has one pole on what is now an island in the middle of the wide channel. The primary constraint in this location is the technical difficulty inherent in stabilizing a channel that has meandered to the extent that the Cane River has in this location. The strearnbed loses significant grade as it drops into the aligrurnent of the fornner ponds. To re-align the strean to the east (river-right), significant amounts offill would have to be placed to build up the ponds/current stream channel. These sediments would be prone to erosion and transport dining high flows. All work will be performed as per conversations bettiveen Altarnnornt Ernvironnnental, USArmy Corps of Engineers, NC Wildlife Resources Col)nmissiOn, and on-site consultation with the US Fish and Wildlife Service personnel on other ETVP sites in this watershed. Work will include strearnbarnkstabilizalion in the area described below as well as localized removal of organic and mineral debris and strearnbank re-vegetation. Cane River is classified as `WSII', `Trout' waters and High Quality Waters (HQIJ9 throughout the project area. No listed species or their habitats occur in this area according to the US Fish and Wildlife Service response to the EWP Environmental Checklist on February 2, 2005. The overall goals of work at this location are to 1. Stabilize the channel in the post flood condition, directing low flows to river-right while allowing storin flows to engage the river left channel. 2. Re-establish a larger channel on the east (right) side of the inset valley. The channel geometry and cross-sectional area will be based on regional curve analysis and evaluation of relatively undisturbed portions of the Cane River upstream and downstream of the site. 3. Provide a medium to high flow channel along the current path of the main channel. 4. Protect the unpaved access road along the west side of the valley. To accomplish these goals, it will be necessary to utilize a combination of rock rip-rap, bioengineering, in-stream structures, and channel bed excavation. Property owner information for all proposed work areas is included in Table 1 and Table 2 The work addressed in this application is intended to improve the post flood hydraulic capacity of the stream reaches discussed and stabilize severely eroded streambanks that are threatening structures. The proposed actions are not intended to enhance existing conditions or restore the stream reaches using natural channel design techniques. Such activities would require detailed engineering evaluation and design, which are beyond the intent of the EWP program. Equipment used to accomplish the above tasks includes: one or more 15 ton dump trucks, one or more hydraulic track mounted excavators with thumb, one or more dozers with a six-way blade; and chainsaws. Establishment of vegetation on the disturbed channel banks will be necessary in some locations in the vicinity. Vegetation establishment will consist of a combination of hydroseeding and live staking. A primary concern for the excavation of channel bed materials is the impact to turbidity within the Cane River. It may be possible to separate excavators fi°oin flow via the use of temporary berms, pipes, and water pumps. However, given the significant quantities of water in the system, and the high permeability of soils in this reach, excavating the channel bed in this location with the excavators out of the water is impractical. Therefore, the work will be sequenced without attempt to separate the equipment from flowing water, and attention will be focused on an efficient work pattern that will limit the time necessary for equipment to be in the water. The following construction sequence will be utilized. The total area of impact within the active channel banks in this reach will be approximately 4.0 acres. The volume of cut and fill will be approximately balanced in this reach as any excavation 4 fi-om the river-right portion of the channel will be used to re-contour the river-left portion of the channel. At all areas the work will proceed from downstremn to upstream to reduce sediment loading. All staging areas will be less than half an acre in size. TJ7ork will proceed as follolvs at each work area (as applicable): 1. Flag the work limits. 2. Mark live trees and shrubs to be protected 3. Construct temporary construction entrancelexits, where necessary. 4. Install sediment fence around staging areas. 5. Grade new roadbed and place rock in channel. Stabilize with coin and plantings. 6. Install sand bag berm to direct all flow into the western (river-left) channel. Z Install second sand bag berm at the downstream end of the eastern channel to prevent backivater from the western channel. 8. Excavate river-right bar and river-right channel. 9. Modify sand bag berm to direct flow to the right. 10. Install irn-str•eart structure. Structure will consist of a modified "TV" weir that will allow flows to engage the river-left channel at higher stages. 11. At the end of each workday install temporary erosion control fabric or matting on exposed soil and secure using removable stakes or sandbags. 12. During construction, place large boulders at the toe of repaired streanbanks where necessary. 13. Fill and compact behind boulders andlor coir logs. Cover with topsoil, install erosion control mat, and seed. Permanent erosion control mats will be constructed offiber or a coir fiber mixture fabric for maximum erosion protection, vegetation establishment assistance, and for rrninirnal impact on wildlife. 14. Inspect and maintain repairs. A site-specific engineering design based on a specific storm event was not completed because the ETVP program is not intended to fund stream restoration design or construction work Rather, the ETVP program is designed to quickly stabilize eroding stream banks to prevent on- going erosion, sedimentation and possible loss ofproperty or life. Because natural channel design methods are beyond the scope of the ETVP progran, published literature values tivere consulted in order to specify the bank stabilization and erosion control materials and methods described in this document. For example, we have specified that falter cloth will be placed behind large rock used for streanbank stabilization or for in-stream structures to increase the stability of the repair measures and minimize sediment loading to the stream. Clean, large, angular rock, coir logs, large woody material, and natural fiber erosion control mats will be used for streanbank stabilization. Once site construction has ceased, the banks of the stabilized channel will be seeded with a native floodplain seed mix and the high stress areas will be lined with erosion control (EC) matting to ensure bank stability. Furthermore, sod matting will be grubbed on-site and used (when available) to line the near bank regions of the constructed/stabilized channel to provide immediate stability. Live stakes and matting staples will be used to secure the EC fabric/sod- matting in these high stress areas. Broadcast seeding rates will be as specified fi°om the local nursery, generally 15-20 lbs/acre depending on species. With landowner permission, native shrub and tree species will be planted throughout the project reach at a rate of 320 sterns/acre, securing near bank areas and providing future shading to the channel. Existing woody vegetation will be preserved to minimize project impacts. The following steps will be observed with respect to vegetation: 1. Exposed soil will be covered with erosion control matting at the end of every workday. Mats will be secured using removable stakes. 2. The project riparian zone and/or buffer areas will be re-vegetated with a combination of native trees, shrubs and herbs/grasses. All disturbed areas will be seeded with a temporary native grass mixture immediately following completion of the work in those areas. Straw mulch and tall fescue will not be used in riparian areas. 3. When possible sod will be taken fi°om adjacent areas (with landowner permission) and placed on exposed soil to provide immediate stabilization within five days of ground disturbing activities. 4. If sod is not available on-site temporary seeding will occur on all bare soil within five days of ground disturbing activities to provide long-term erosion control. If sod is used, the bare area left after removal of sod will be planted. 5. Re-seeding will be conducted, as necessary, with a native annual and perennial seed mix with a temporary y nursery crop of wheat, millet, or other grain. 6. Woody vegetation will be planted during the normal growing season assuming landowner permission. In addition to construction sequencing, we propose to utilize standard Best Management Practices (BMPs) such as those described in the North Carolina Erosion and Sediment Control Manual. We anticipate that some combination of the following BMPs will be utilized. 1. Sediment Fence. Sediment fence will be utilized to delineate the work materials staging area and refueling areas. 2. Tennt)orary Berms. Berms constructed of sand bags, soil, straw bales, or geotextile may be utilized to separate flowing water fmn the work site. These berms shall be constructed to avoid and minimize changes to the velocity and sediment transport capacity of the flow of water through the constriction. 3. Erosion Control Fabric. Typically, 700-series Coir Cloth will be utilized along channel banks to provide immnediate shear strength after fine gradhig is complete. Coir cloth has distinct advantages over synthetic materials because it will: (1) allow plarzting'ofgrass seed and live stakes, and (2) i-vill degrade over time. 4. Vegetation. In general, two types of vegetation will be used to provide short- and long-term stability for disturbed areas. Grass seed, applied with straw and tackifier in a hydroseed slurry is intended to provide short-term (this year) stability. Live stakes are intended to develop into a riparian vegetation community over time to stabilize the channel through tune and a range offlows. 5. Bio-Bats. A pump and geotextile bag system could be utilized to de-water active construction areas. Turbid ivater is pumped out of the job site, through the filter bag onto an approved discharge location. 6. "Dirty" Rip-Rap. In addition to placing crock, in some instances we 1vill also backfill a Portion of the newly-rocked surface with finer materials that could support livestakes 9. Explain the purpose of the proposed work: The work being described is exigency work under the Emergency [Watershed Protection program to protect existing property and structures. Streambank and channel stabilization 1vill also prevent further erosion and sedimentation to the Cane River resource. 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 USAGE 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. N/A 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. No 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. The applicant must also provide justification for these impacts in Section VII below. All proposed impacts, permanent and temporary, must be listed herein, and must be clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) must 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: Proposed impacts include streambank stabilization. Precautions will be taken to keep heavy equipment out of the stream channel except where absolutely necessary to install bank stabilization measures. JYork will be conducted in the dry to the extent practicable. Sediment and erosion control measures, including sand bags, silt fences and reseeding, will be utilized to minimize sedimentation. 2. Individually list wetland impacts below: There will be no wetlands impacted at this site. Wetland Impact Site Number (indicate on ma) Type of Impact* Area of Impact (acres) Located within 100-year Floodplain** (yes/no) Distance to Nearest Stream (linear feet) Type of Wetland*** _ rnf * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: mechanized ciearmg, graumg, rin, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding. ** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps (FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or online at littp://www.fema.gov. *** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond, Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only). List the total acreage (estimated) of all existing wetlands on the property: None Total area of wetland impact proposed: N/A 3. Individually list all intermittent and perennial stream impacts below: Length of Average Width Stream Impact Type of I mpact* Impact Stream "" . of Stream Perennial or Location (linear feet) Name Before Impact Intermittent? (feet) Channel and Bank Area 1 Stabilization; Channel 940 Cane River 80 Perennial Reconfiguration * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap, dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and aflcr, and net loss/gain), stabilization activities (cement wall, rip-rap, crib wall, 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. ** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at www.usgs.gov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com, www.mapquest.com, etc.). Cumulative impacts (linear distance in feet) to all streams on site: 975 linear feet 4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.) below: There will be no impacts to open waters. Open Water Impact Site Number (indicate on ma) Type of Impact* Area of Impact (acres) Name of Waterbody (if applicable) Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc.) * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging, flooding, drainage, bulkheads, etc. 5. 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.): NM Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): N/A Size of watershed draining to pond: N/A Expected pond surface area: N/A 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 were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. On behalf of Yancey County, Altarnont will provide contractors engaged in the implementation of this work both written and verbal instructions of all impact avoidance statements provided below. All heavy equipment will be kept out of the stream channel during streanrbank stabilization and stream relocation work, except where absolutely necessary to install bank stabilization measures. Disturbance of channel bottom and banks and equipment access areas shall be held to the minimum necessary to allow for bank stabilization and debris removal sufficient to restore the hydraulic capacity of the stream channel. Temporary grass cover shall be planted on all bare soil within 5 days of ground disturbing activities. Provided landowners give permission, herbaceous and woody shrub and tree vegetation will also be installed on the riverbank upon completion of batik stabilization work Yancey County will provide a site Manager to routinely inspect and supervise contractor work to help ensure impact avoidance instructions are being followed. 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 March 9, 2000, mitigation will be required when necessary to ensure that adverse effects to the aquatic enviromnent 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 NCWRP concurrence shall be placed on hold as 10 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://l12o.enr.state.nc.us/newetiands/strmaide.htm1. 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 Wetlands Restoration Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at (919) 733-5203 to detennine availability and to request written approval of mitigation prior to submittal of a PCN. For additional information regarding the application process for the NCWRP, check the NCWRP website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCWRP is proposed, please check the appropriate box on page three 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) Does the project involve an expenditure of public (federal/state) funds or the use of public (federal/state) land? Yes ® No ? 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 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 ? 11 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 213 .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify)? Yes ? No ® If you answered "yes", provide the following information: 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 (s rare feet) Multiplier Required Mitigation 1 3 2 1.5 Total * Zone 1 extends out 30 feet perpendicular from 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, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0260. XI. Stormwater (required by DWQ) Describe impervious acreage (both 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. Impervious acreage will not change. Erosion and sedimentation prevention and control will be maintained throughout this project primarily through proper water inanageinent, construction sequencing, proper staging and stockpiling of materials, and the maintenance, at all times, of suitable channel capacity for expected flow events. Equipment, fuels, lubricants, or other potential sources of water pollution will not be stored in areas that could be flooded during this project. 12 X1I. 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. Portable facilities shall be provided at the lvork site. X1II. 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. 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). N/A Gam/ - -vim -1 r E,--- Applicant/Agent's Sign ati , e Date (Agent's signature is valid only if, n authorization letter from the applicant is provided.) 13 Michele P. Lawhern, County Manager v John Renfro, Chairman ean Hicks, Commissioner hitson, Commissioner YANCE JL COUNTY Blaine W County Courthouse, Room 11 • Burnsville, North Carolina 28714 PHONE: (828) 682-3971 • FAX: (828) 682-4301 • EMAIL: mlawhern@yancey.main.nc.us November 10, 2004 Altamont Environmental, Inc. 50 College Street Asheville, North Carolina 28801 Stu, At the regular monthly meeting of the Yancey County Board of Conunissioners last evening, the enclosed contract for professional services was executed, relative to EWP Section 216 work. Pursuant to, or in the spirit of the further intent of this contract, this Yancey County Local Government hereby authorizes Altamont Environmental, Inc. to sign and execute all necessary permits and coordinate communications with said regulatory agencies. If there should be any questions about the above, please feel free to call me at any time. Sin ely, 9N i LTIVIi6hele P. Lawhern Yancey County Manager Work: 828/682-3971; Cellular 828/284-0746 Table 1. Affected Parcels ERT DSR 2004-22 Yancey County, North Carolina MAP ID PIN OV/NER Property ADDRESS CTTY STATE ZIP Exigency? CHANNEL STEAMBANK ROCK DEBRIS WOODY DEBRIS COMMENTS Size acres REALIGNMENT STABUZATION REMOVAL REMOVAL Approx 150 linear If stream GREEN COVE frontage 34 071700779M9000 HECKROTTE MARY BOONE 629 411 WALNUT ST # 2628 SPRINGS FL 32043 N • • • • Approx 150 linear ft stream BLOOMFIELD frontage 29 071700931164,00 PINTO DIANA V TRUSTEE 6 98 P.O. BOX 955 HILLS R11 48302-7508 N • • • • Approx 500 linear ft stream frontage 27 071700692513000 PINTO ERNEST 19 03 1278 RIVERVIEW RD BURNSVILLE NC 23714 N • • • • Approx 150 linear ft stream frontage 25 0717OC89382000O HOLLIFIELD WILLIAM THAD 8 DORIS 6.70 1170 RIVERVIEW RD BURNSVILLE NC 23714 N • • • • Approx. 350 linear R stream frontage 26 071700891174000 HOLLIFIELD WILLIAM THAD S DORIS 18.00 1170 RIVERVIEW RD BURNSVILLE NC 28714 N • • • • Appro. 300 linear R stream frontage 21 071700891174000 HOLLIFIELD WILLIAM THAD & OCRIS 18 00 1170 RIVERVIEW RD BURNSVILLE NC 29714 N • • • • Appro. 650 linear It stream frontage 15 071700984967000 WILSON BENJAMIN B 29 06 29 CATTAIL CREEK RD BURNSVILLE NC 28714 N • • • • Approx 170 linear R stream frontage 23 071700997134010 ATKINS EDGAR 405 12040 HWY 197 S BURNSVILLE NC 28714 N • • • • Approx 350 linear ft stream frontage 31 071700981164000 WILSON BILLY BROOKS & KATIE 4.00 19 PENSACOLA SCHOOL RD BURNSVILLE NC 28714 N • • • • Appro. 3150 linear It stream 1 frontage 38 1 071800507323000 MILLER RAY V & MARY ANNE 391 17 9449 STATE HWY 197 S BURNSVILLE NC 29714 N • • • • P9Yancey County EWP/DSRs1DSR 21,22'PCNS70SR 22'parcels_cane 22_acoe TABLE 2 REPAIR AREA COORDINATES CANE RIVER DSR 2004-22 Pinto YANCEY COUNTY, NORTH CAROLINA Cane River EWP DSR 2004-22 Pinto Repair Area Coordinates Area Latitude Longitude 1 35.8436 82.3117 N W-<?- E 8 Project Location Figure 1 Site Location Map April 28, 2005 USGS Mt. Mitchell Quadrangle Scale 1 inch = 2000 feet Cane River - EWP DSR 2004-22 - Pinto Yancey County, North Carolina 50 COLLEGE STREET, A$HEVILLE, NC 28801 TEL. 828.281.3350 FAC.828.281.3351 www.altamontenvironmental.com P:\Templates\Figures in Word\Figure Border.doc L I _!yJ?.11 27 Red indicates post-flood channel location Blue indicates pre-flood channel location mmom. ftmam Proposed W-Weir Location w 'l"° Legend Property Boundary Surface Water Roads -- a ?u a p w Figure 2 Cane River DSR 2004-22 Pinto ALTAMONT M i EWPProject Area ENGINEERING & HYDROGEOLOGY Yancey County, North Carolina 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL- 828.281.3350 FAC. 828.281.3351 200 0 200 Feet www.altamontenvironmental.com 01-15-05 Figure 3 Cane River DSR No. 2004-22 Pinto Yancey County, North Carolina 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL. 828.281.3350 FAC.828.281.3351 www.altamontenvironmental.com ?r 001 V, r k 4 j S ? n. ^ _ 4 uY 7 h ! ?? al.` -vmr aL `qi-` 1 i ?t . -.:..:, _.. + ,.,^?r""""z."?,. Y Mid ?? { ? ,. - -.?,?. ? ? ?"? '! ..,} ? r ' ' •-.,; :? ? c ?? ` _ a.k.+?' ? ar Yom'` } r _ .-.-t ?.... .. . > ?iA.. ?"`zr-.. ,.?. a ,}t _ ..>'• v. _ F G. a+ *'rse, • j? } ?, wy? a ,??,,?...??? ?iy i i .i? ?? ',?r,? ? -+_r!?%-+?,r???,.,_, e--> _?w'?g.?P ?,.st?4. t'y3 s i. yR 1A?iwl?y .yF ?} `? f 1 lr1E ,!{i# z °?'? 7 = ' ...... ?. w? • ;. .>. ?i?t*g af. ' ,?: ,?,,, ?° °IK s _ w . _. :, t? sa-_ :'t?'1 - 'i...x ? Y ,Y? +'?2 "? - '?.d"?„ ,? -9Q_ _.+?.` M .,? _ ?Y'?..d iw,.,,a'°??+J? +GrM,1?? Flo. T ?f "?' F.mw+.:? T:'? • ?? ?n...r +?,- :.ryiy,.:. _.e+iw! ?i F J tT ? g ..?.. ' y, •3 _ ?X •.. ?.Zp ii , s •? T,F ,__41% #C ?r t .r f S??!^?Yad.°ti S? y.,_??y G? ?+i.?y?yS*7R. S?z 1.4 or. le- i ?. STREAM STABILIZATION FIGURE ALTAMONT FE Wis 1 N 1 N Y Y MEASURES h ? v 50 COLLEGE STREET, AS EVILLE, NC 28801 4 TEL. 828.281.3350 FAC.828.281.3351 3a s r ww.altamontenvtronmental.com EWP 2004-22-PINTO r.. _ ?'^ • x I CANE RIVER PAwN BY: ZaN PRICE NOT TO SCALE YANCEY COUNTY, NC = OJECT MANAGER: STU RYMAN ]ENT: YANCEY COUNTY -aTE: 07/01/05 FILE PATH. P:\Ye EY-EWP%DSRS\DSR 22 -CAW Rl-\SBL P- PCN\ C-EATUAL DESIGN P-+ 22J-1Nro.D - Upstream end of project area i. lw T 1 mod' tF ] Former Trout . i '}hf Pond Area Deflect flow to river right and Flow _ create high flow Direction channel on river left ' "? 'wry x .r ; Ii, . ;i 'ilk ?>. A?.x?....: Figure 4 Cane River DSR No. 2004-22 Pinto Yancey County, North Carolina 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL. 828.281.3350 FAC.828.281.3351 www.altamontenvironmental.com 1 , 1 - ? { eRti ? Y ?, j ? FM tY _ < ? ?.r j.: e ? !&Al - .,. -'? '? - .-.,, _+?,!,ll.?:,'s" .. wSr? _ -'r? `.1` ?"k,yw- ,tk'2 - ?_a ?", {?, ;. . rs- ..?;. Mme"' -- • :s.-tom -yl?_ -i` ? 3 714 -•;? +~ J' Vlo r f A' _ +yy r , STREAM STABILIZATION FIGURE ^ ENGINEERING & HYDROGEOLO Y MEASURES 50 COLLEGE STREET. ASHEVILLE,',C 28801 r' TEL 828.281.3350 FAC,828.281.3351 .altamontenvTuoI=entaI.com EWP 2004-22-PINTO w,i-.,, 4a CANE RIVER ?"iaf" ? ,, ?. r?"?„ RAWN BY: ZaN PRICE =ROJECT MANAGER: STU RYMAN NOT TO SCALE YANCEY COUNTY, NC CLIENT: YANCEY COUNTY DATE: 07/01/05 FILE PATH: P:\Ya.KEY-EWPtDSRS\DSR 22 -Cu R-%881- P-PCN\ CarcEPnw De5I6n Prq -2?-Fnrto- li Figure 5 Cane River DSR No. 2004-22 Pinto Yancey County, North Carolina 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL. 828.281.3350 FAC.828.281.3351 www.altamontenvironmental.com y :. e a a T ?. % ' 14 WI .?a' '.. , ' p Jt: ' '.d } T i r t ? .rs fie; + ? - ?_..s.. .yy '._• y?r.? 13-'_? .`. ?y ni?_2R?" -?. :aad .o- may; - _ ,p?. ? ?? ..7/. Z.?yiur.?,"?..5? ?„T? •!?,. ?. m?? "C=Y-\w9?yn..eP??` ?u .2 Y?` i?? ?`? /W?n?. r _ .?C.t{y.' . - 'i=s,' !Y}-X?.?..°`?. i •T y _ ,.rs x _?ed? i_ s?'$re°yy`?.a- i. P:.y ". rT- . 41;f.? ?'l - _ der s.,. r?o.?e'yF.-.. .?? r T "°.'111 -.. r r:w.- ? ,. ? ? _ .•? ? ?!' ?.I,? ? ?,+.r' r -'':_'"'?. fin., ??,rRr.G w .' ? ?"= '??,.?-+r?w±. wl^ a9..w?.,? .?pp? ,,?."•'- a - ? -?..??•.:?. -..- F , STREAM STABILIZATION FIGURE r"- RF N I N E E R I N G dC H Y D R O G E O G Y MEASURES 50 COLLEGE STREET, ASI- MLLE, `C 28801 TEl.828.281.3350 Enc.828.281.3351 EWP 2004-22-PINTO 5a www.altamontenvironmcntal.com r? ;o CANE RIVER PRAWN BY: NA PRicE PROJECT MANAGER: STU RYMAN NOT TO SCALE YANCEY COUNTY, NC CLIENT: YANCEY COUNTY DATE: 07/01/05 FILE PATH: P:\YMiCEY-EWP\DSRs\DSR 22 -Care R-NBBL PM PCN\ COHC AL DESIGN PH0TOS22PW0- Figure 6 Cane River DSR No. 2004-22 Pinto Yancey County, North Carolina 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL. 828.281.3350 FAC.828.281.3351 www.altamontenvironinental.com i v?- -7 -7 -.-?. .,Ine •-..s ?Hwm L?'!f'?a:zr-.,? '-4r?ir?a' :,s .?„i ? ?y ,yaa??'G: ' ? ? ?'::. . ? . R?y J+' +r..a '??T?,i--`s+a'?'??.? ; ? ? +.?'?? ?? ? !ate a': s„s'?"" s. ?-, _4 -.-,.???0 - ".,:ei - :? ?!vYF?""`?='?. i..._ `? _-,r'. '."+,.? JS„>??.'?.•??a S ` a o 7 t; • { ! - s ` F ~'i'.si'i'w rr x rsaz -ter " ++< ". ?`? ? '??'_.-"^ s= ?..y? ,. -ti ?^ wr 3 r.p 117- lt7 STREAM STABILIZATION FIGURE NGIN ERIN & HYDROGEOLOGY MEASURES 50 COLLEGE STREET, ASHEN ILLE, NC 28801 TEL.828.281.3350 FAC.828.2813351 6a -.altamontenvironmental.com EWP 2004-22-PINTO DRAWN BY: ZAN PRICE CANE RIVER PROJECT MANAGER: STU RYMAN NOT TO SCALE YANCEY COUNTY, NC CLIENT: YANCEY COUNTY DATE. 07/01/05 FILE PATH.. P:\YmCEr-EWP\DSRS\DSR 22 - Cu Rnw\881- P-- PC-\ COr 11- DE-l-- P-los22-P-.- t Figure 7. Cane River DSR 2004-22 Pinto Target Cross-Section 50 1 CROSS-SECTION A: DOWNSTREAM END OF STRUCTURE 1 A =t x 4- f}? 2 SCOUR Poo r t f / Y_ C scaH voa 1/2 1/4 I CHANNEL ------?--CHANNE WIDTH WIDTH 3 0 LL U- O Z 0 ti U W Ir SOURCE: BBL ENVIRONMENTAL SERVICES, INC O LEGEND: FOOTER ROCKS PLACED BELOW GRADE A' 2 CROSS-SECTION B: ALONG ROCK VEIN UPPER ELEVATION OF ROCK SHALL NOT EXCEED HALF OF BANKFULL DEPTH ?p A1E n ..i=N 17SLOPE OF ROCKS BETWEEN 2 AND 7%? _ NOTES: 1. DRAWING IS CONCEPTUAL AND IS NOT TO SCALE. 2. WEIR ROCKS TO BE INSTALLED AT 20 TO 30 DEGREE ANGLE (PLAN VIEW) FROM CHANNEL BANK. 3. TOP SLOPE OF ROCK EMPLACEMENT SHALL BE BETWEEN 2 AND 7% (DETAIL 2) 4, ROCK PROJECTION INTO FLOW SHALL NOT EXCEED 40 PERCENT OF ROCK DIAMETER. 5. THE CONCEPT FOR THE W WEIR WAS DEVELOPED BY WILDLAND HYDROLOGY AND SUMMARIZED IN UNDATED WHITE PAPER BY D. ROSGEN. 'ENGINEERING & HYDR0GE0L0G'Y 50 COLLEGE STREET, ASHEV[LLE, KC 28801 TEL.828.281.3350 FAC828.281.3351 wwnv. altamontenvironmentalxom PROJECT MANAGER: STUART RYMAN I SCALE: NTS CLIENT: YANCEY COUNTY DATE: 7/14/05 W WEIR I NSTREAM STRUCTURE DETAIL EMERGENCY WATERSHED PROTECTION YANCEY COUNTY, NC 22 - CANE RIVER\ W FIGURE