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HomeMy WebLinkAbout20020164 Ver 1_COMPLETE FILE_20020201W AT ?9QG r Michael F. Easley Governor William G. Ross, Jr., Secretary Department of Environment and Natural Resources Gregory J. Thorpe, Ph.D. Division of Water Quality February 28, 2002 Mr. David Gonos Staurolite Farms 166 McCray Road Brasstown, NC 28902 Subject: Trout Cove Branch Stream Restoration DWQ Project No. 020164 Clay County Dear Mr Gonos: APPROVAL OF 401 Water Quality Certification Dear Mr. Gonos, You have our approval, in accordance with the attached conditions and those listed below, to restore approximately 2090 feet of stream and enhance approximately 2000 feet of stream of Trout Cove Branch and an unnamed tributary to Trout Cove Branch in the Hiawassee River Basin, Clay County based on your application dated February 4, 2002 and amended February 18, 2002. After reviewing your application, we have decided that this activity is covered by General Water Quality Certification Number 3257. This certification allows you to use Nationwide Permit Number 27 when the Corps of Engineers issues it. In addition, you should get any other federal, state or local permits before you go ahead with your project including (but not limited to) Sediment and Erosion Control, Coastal Stormwater, Non- Discharge and Water Supply Watershed regulations. This approval will expire when the accompanying 404 or CAMA permit expires unless otherwise specified in the General Certification. This approval is only valid 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 wetland fills for this project (now or in the future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h) (6) and (7). This approval shall expire when the corresponding Nationwide Permit expires or as otherwise provided in the General Certification. For this approval to be valid, you must follow the conditions listed in the attached certification and any additional conditions listed below. 1. This approval does not award any compensatory mitigation credit for this project. Such credit must be requested and approved under separate cover. If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You must act within 60 days of the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150B of the North Carolina General Statutes to the Office of Administrative Hearings, P.O. Box 27447, Raleigh, N.C. 27611-7447. 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 Todd St. John at 919-733-9584. in r ly, ghorpe,-Ph.D. A tach e t v cc: Asheville Regional Office Dave Penrose File William Scott Hunt, Arcadis, PO Box 31388, Raleigh, NC 27607-5905 North Carolina Division of Water Quality, 401 Wetlands Certification Unit. 1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address 2321 Crabtree BI ; Raleigh, NC 27604-2260 (Location) Project No. WQ 02-0164 Subject: Project No. WQ 02-0164 Date: Wed, 27 Feb 2002 09:05:58 -0500 From: Mike Parker <Mike.Parker@ncmail.net> Organization: NC DENR - Asheville Regional Office To: Todd St John <Todd.St.John@ncmaiLnet> Todd, on February 26, 2002 I looked at this project. The stream they are going to work in Trout Cove Branch is in a farm. The stream is eroding badly with shear walls and some undercutting. Work is needed to stop the erosion. The reference reach was also looked at. The reference reach stream is Big Tuni Creek and is in the Nantahala National Forest. The stream is a little larger than Trout Cove Branch and is a very stable B3 stream. If you have questions, call me. Mike Mike Parker - Mike.Parker@ncmail.net North Carolina Dept. of Environment and Natural Resources Asheville Regional Office Division of Water Quality - Water Quality Section 59 Woodfin Place Asheville, NC 28801 Tel: 828-251-6208 Fax: 828-251-6452 Mike Parker <Mike.Parker@ncmail.net> NC DENR - Asheville Regional Office Division of Water Quality - Water Quality Section I of 1 2/27/02 1:23 PM (D N m? mi ?I 9 C i A V A W ? n O O O ? n co V ° ?' p ? OD _ ?D C. V co co O o n K) 0) W 00 w K) A p O AW N m N X N ?t35 1 O S -l p0p0 W To pW O W 1 X O i O A t 0 t O IIUU N ? ' O 6 1 p C. 00 6D OD ?n 0 -4 C) 0 0) tw0 V (Vn Co ? f1 00 m i 8 Npp 0 7 j T to C .? p W O v 0 tD ° p p V W O A A t o i0 t O t 0 V (3) t o Pj t. N i g W V OD 54 m j N w rl) co co 4 im (n c) -4 O N) AA O g N 00 (D co CA 0 01 ? N OD N N O Cn V O V co N A co W OD (N,? Cn - W N p° A P M p- OD O O 0 - OD V V w C1 O O. O w ( a O W I A lA 07 p l C o W V W A CD O V A I p ? W CW L2: s < 10 F o ? 3 3 n fn Inc F ??tom W0 00(1) 0-I T- vo, 0 --1 8C'. a mmto(xp fD CL EL N N m3 .r, D 3 3 n v v tD O N O/ 3 3 O V ( P O O -4 ( ll 10 O w 7 -4 CD N N?pD ?Ao 07 " p? NN N o O w NN N + W J J 4 IV A co 1 Q3 jS 3 a3 3 m 3 3 33.E o N N N O w 7 y N N Q O d N C CD H t ? 7 O cn o p A O N O C D o ° N 5 3 CD w 0 a 0 o_ c r1) CD CD =101(8 1zo S2Itto Lo 118:-, 9 J W U P W N I -' 0? Oo J?? :D :0 f g g o = c z °' g m m c w w w 0 ,& I.I8I ?i n 2 m n x J N ? T 6 y 3 ' w 3 d ?I VOARCADIS Infrastructure, buildings, environment, communications ARCADIS G&M of North Carolina, Inc. X P.O. Box 31388 Mr. John Dorney J 1 ?r l;l III Raleigh, NC 27622-1388 Wetlands Unit Supervisor ` r V 2301 Rexwoods Drive -Suite 102 North Carolina Division of Water Quality Raleigh, NC 27607-3366 401 Wetlands Unit Tel 919 782 5511 1650 Mail Service Center Fax 919 782 5905 Raleigh North Carolina 27699-1650 , TRA Subject: Trout Cove Branch Stream Restoration DWQ Project No. 020164 Raleigh, Dear Mr. Dorney: 18 February 2002 This letter provides the additional information for the subject project requested in your letter dated February 12, 2002. 1. In Stream Structures and/or Channel Blocks The length of tree trunk required on the root wad is 10'-12` as shown on Sheet 18 - Rootwads. The average size of rock for cross vanes will be 4'x 3'x 2'. 2. Morphological Measurement Table Morphological Characteristics Tables are enclosed for Trout Cove Branch and its tributary. 3. Pebble Count Page 4 of the Morphological Characteristics Tables includes the pebble count data. 4. Sediment Transport Analysis Page 4 of the Morphological Characteristics Tables includes the sediment transport analysis. 5. Reference Reach The reference reach longitudinal profile is enclosed. Part of a bigger picture Contact: Scott Hunt, P.E. Extension: 181 nc601035.0000 responcetodwq.doc ARCADIS We apologize for any inconveniences this may have caused. If you have any additional comments or concerns, please feel free to contact Robert Lepsic or me. Sincerely, ARCADIS G&M of North Carolina, Inc. W. Scott Hunt III. P.E. Project Engineer Copies: Mr. Dave Gonos File Page: 2/2 Our ref.: OurRef2/responcetodwq.doc MORPHOLOGICAL CHARACTERISTICS OF THE EXISTING AND PROPOSED CHANNEL WITH GAGE STATION AND REFERENCE REACH DATA (Adapted from Rosgen, 1996) Restoration Site: Trout Cove Branch at Staurlite Farms, Clay County, NC USGS Gage Station: #03550000 Valley River at Tomotla, NC, Cherokee County Reference Reach: Big Tun! Creek at Tuni Gap Road, Clay County, NC Existing Channel Proposed Reach Proposed Reach Reference Reach USGS Gage Trout Cove Upstream Downstream Station Branch Confluence with Confluence with Tributary Tributary Variables 1. Stream Type B5 B4 B4 B4a 2. Drainage Area 0.21-0.36 sq mi 0.21-0.31 s mi 0.31-0. 6 s mi 2.85 s mi 104 s mi 3. Bankfull Width (Wbkf) Mean: 10.4 ft Mean: 14.8 ft Mean: .15.2 ft Mean: 29.5 ft Mean: 108.0 ft Range: 5.2 ft - Range: Range:; Range: 24.9 ft - Range: 22.5ft 34.1 ft 4. Bankfull Mean Depth Mean: 0.7 ft Mean: 0.6 ft Mean: 0.7 ft Mean: 1.3 ft Mean: 4.6 ft (dbkf) Range: 0.6 ft - 0.9 ft Range: Range: Range: 1.2 ft - 1.4 Range: ft 5. Width/Depth Ratio Mean: 14.0 ft Mean: 22.7 Mean: 21.7 Mean: 22.7 Mean: 23.5 (Wbkf/dbkf) Range: 6.0 ft - 36.4 Range: Range: - Range: 19.2 - Range: ft 26.2 6. Bankfull Cross- Mean: 7.8 ft2 Mean: 9.7 ft2 Mean: 10.2 ft2 Mean: 38.4 ft2 Mean: 498.0 ft2 Sectional Area (Abkf) Range: 4.5 ft2 - Range: Range: , Range: 34.3 ft2 - Range: 13.9 ft2 42.4 ft2 7. Bankfull Mean Velocity Mean: 5.4 fps Mean: 4.8 fps Mean: 5.0 fps Mean: 9.3 Mean: 3.5 fps (Vbkf) Range: 5.2 fps - 5.8 Range: 4.2 fps - Range: 3.7 fps - Range: 5.8 fps - Range: fps 5.4 fps 6.4 fps 11.2 fps 8. Bankfull Discharge, cfs Mean: 42.1 cfs Mean: 46.6 cfs Mean: 51.0 cfs Mean: 356.5 cfs Mean: 1,750 (Qbkf) Range: 40.6 cfs - Range:40.7 cfs - Range: 37.7 cfs - Range: 319 cfs - cfs 45.2 cfs 52.4 cfs 65.3 cfs 394 cfs Range: 9. Maximum Bankfull Mean: 1.8 ft Mean: 1.1 ft Mean: 1.3 ft Mean: 1.9 ft Mean: N/A Depth (dmax) Range: 0.8 ft - 2.9 ft Range: 1.1 ft - 1.2 Range: 1.3 ft - 1.4 Range: 1.8 ft - 2.0 Range: ft ft ft 10. Ratio of Low Bank Mean: 1.8 Mean: 1.0 Mean: 1.0 Mean: 1.0 Mean: N/A Height to Max. Bankfull Range: 1.0 - 3.5 Range: Range: Range: Range: Depth (Bhlow/dmax) 11. Width of Flood Prone Mean: 19.4 ft Mean: 26.6 ft Mean: 27.3 ft Mean: 45.0 ft Mean: N/A Area (Wfpa) Range: 10.6 ft - Range: 20.7 ft - Range: 21.3 ft - Range: 40.0 ft - Range: 30.0 ft 32.6 ft 33.4 f> 50.0 ft 12. Entrenchment Ratio Mean: 1.9 Mean: Mean: Mean: 1.6 Mean: N/A (Wfpa/Wbkf) Range: 1.0 - 2.9 Range: 1.4 - 2.2 Range: 1.4 - 2.2 Range: 1.4 - 1.7 Range: 13. Meander Length (Lm) Mean: 1292 ft Mean: 105.1 ft Mean: 107.9 ft Mean: 210.0 ft Mean: N/A Range: 1100 ft - Range: 97.7 ft - Range: 100.3 ft - Range: 195.0 ft - Range: 1525 ft 112.5 ft 115.5 ft 225.0 ft 14. Ratio of Meander Mean: 123.8 Mean: 7.1 Mean: 7.1 Mean: 7.1 Mean: N/A Length to Bankfull Width Range: 105.4 - Range: 6.6 - 7.6 Range: 6.6 - 7.6 Range: 6.6 - 7.6 Range: (Lm/Wbkf) 146.1 15. Raduis of Curvature Mean: 491 ft Mean: 50.3 ft Mean: 51.9 ft Mean: 84.3 ft Mean: N/A (Rc) Range: 114 ft -860 Range: 26.6 ft - Range: 27.4 ft - Range: 54.0 ft - Range: ft 74.0 ft 76.0 ft 147.0 ft Table2DimensionlessratiosALL.xis 1 of 4 Existing Channel Proposed Reach Proposed Reach Reference Reach USGS Gage Trout Cove Upstream Downstream Station Branch Confluence with Confluence with Tributary Tributary Variables 16. Ratio of Radius of Mean: 47 Mean: 3.4 Mean: 3.4 Mean: 2.8 Mean: N/A Curvature to Bankfull Range: 10.9 - 82.4 Range: 1.8 - 5.0 Range- -5.0 Range: 1.8 - 5.0 Range: Width (Rc/Wbkf) 17. Belt Width (Wblt) Mean: 111.3 ft Mean: 38.5 ft Mean: 9.5 ft Mean: 76.5 ft Mean: N/A Range: 60 ft - 135 ft Range: 32.6 ft - Range: 33.4 ft - Range: 66.0 ft - Range: 42.9 ft 44.1 ft 87.0 ft 18. Meander Width Ratio Mean: 10.7 Mean: 2.6 Mean: 2.6 Mean: 2.6 Mean: N/A (Wblt/Wbkf) Range: 5.7 - 12.9 Range: 2.2 - 2.9 Range: 2.2 - 2.9 Range: 2.2 - 2.9 Range: 19. Sinuosity (Stream Mean: 1.07 Mean: 1.1 Mean: 1.03 Mean: 1.14 Mean: N/A length/valley distance) (k) Range: Range: Range: Range: Range: 20. Valley Slope (ft/ft) Mean: 0.0434 ft/ft Mean: 0.0434 ft/ft Mean: 0.0239 ft/ft Mean: 0.0485 ft/ft Mean: N/A Range: Range: Range: Range: Range: 21. Average Water Surface Mean: 0.0405 ft/ft Mean: 0.0394 ft/ft Mean: 0.0231 ft/ft Mean: 0.044 ft/ft Mean: N/A Slope or Bankful Slope for Range: Range: Range: Range: Range: Reach (Sbkf or Savg)=(Svalley/k) 22. Pool Slope (Spool) Mean: 0.004 ft/ft Mean: 0.0 Mean: 0.0 Mean: 0.02 ft/ft Mean: N/A Range: 0.0 - 0.016 Range: Range: Range: 0.009 ft/ft Range: ft/ft 0.046 ft/ft 23. Ratio of Pool Slope to Mean: 0.1 Mean: 0.0 Mean: 0.0 Mean: 0.6 Mean: N/A Average Slope Range: 0.0 - 0.4 Range: Range: Range: 0.2 - 1.0 Range: (Spool/Sbkf) 24. Maximum Pool Depth Mean: 2.4 ft Mean: 1.4 ft Mean: 1.7 ft Mean: 2.9 ft Mean: N/A (dpool) Range: 3.6 ft - 5.3 ft Range: 1.0 ft - 1.8 Range: 1.2 ft - 2.1 Range: 2.2 ft - 3.9 Range: ft ft ft 25. Ratio of Maximum Mean: 3.3 Mean: 2.4 Mean: 2.4 Mean: 2.4 Mean: N/A Pool Depth to Bankfull Range: 2.3 - 4.3 Range: 1.7 - 3.0 Range: 1.7 - 3.0 Range: 1.7 - 3.0 Range: Mean Depth (dpool/dbkf) 26. Pool Width (Wpool) Mean: 8.3 ft Mean: 10.4 ft Mean: 10.6 ft Mean: 23.1 ft Mean: N/A Range: 7.4 ft - 9.3 ft Range: Range: Range: Range: 27. Ratio of Pool Width to Mean: 0.8 Mean: 0.7 Mean: 0.7 Mean: 0.7 Mean: N/A Bankfull Width Range: 0.7 - 0.9 Range: Range: Range: Range: (Wpool/Wbkf) 28. Bankfull Cross- Mean: 14.9 ft2 Mean: 10.8 ft2 Mean: 11.2 ft2 Mean: 40.7 ft2 Mean: N/A sectional Area at Pool Range: 9.8 ft2 - Range: Range: Range: Range: (Apool) 20.0 ft2 29. Ratio of Pool Area to Mean: 1.9 Mean: 1.1 Mean: 1.1 Mean: 1.1 Mean: N/A Bankfull Area Range: 1.3 -2.6 Range: Range: Range: Range: (Apool/Abkf) 30. Pool to Pool Spacing Mean: 86.4 ft Mean: 28.1 Mean: 28.9 Mean: 59.1 ft Mean: N/A (P-p) Range: 19.7 ft - Range: 4.4 ft - 51.8 Range: 4.6 ft - Range: 10.8 ft - Range: 186.7 ft ft 53.2 ft 118.1 ft 31. Ratio of Pool-to-Pool Mean: 8.3 Mean: 1.9 Mean: 1.9 Mean: 1.9 Mean: N/A Spacing to Bankfull Width Range: 1.9 - 17.9 Range: 0.3 - 3.5 Range: 0.3 - 3.5 Range: 0.3 - 3.5 Range: (p-p/Wbkf) Table2DimensionlessratiosALL.xis 2 of 4 Existing Channel Proposed Reach Proposed Reach Reference Reach USGS Gage Trout Cove Upstream Downstream Station Branch Confluence with Confluence with Tributary Tributary Variables 32. Pool Length (Lp) Mean: 9.6 ft Mean: 5.2 ft Mean: 6.1 ft Mean: 11.2 ft Mean: N/A Range: 1.9 ft - 20.1 Range: 1.3 ft - 10.4 Range: 1.5 ft - Range: 2.7 ft - Range: ft ft 12.1 ft 23.1 ft 33. Ratio of Pool Length to Mean: 8.3 Mean: 0.4 Mean: 0.4 Mean: 0.4 Mean: N/A Banfuli Width (Lp/Wbkf) Range: 1.9 - 17.9 Range: 0.1 - 0.8 Range: 0.1 - 0.8 Range: 0.1 - 0.8 Range: 34. Riffle Slope (Sriff) Mean: 0.061 ft/ft Mean: 0.0385 ft/ft Mean: 0.0231 ft/ft Mean: 0.041 ft/ft Mean: N/A Range: 0.018 ft/ft - Range: 0.0193 ft/ft Range: 0.01155 Range: 0.023 ft/ft Range: 0.206 ft/ft 0.0462 ft/ft ft/ft - 0.02772 ft/ft 0.049 ft/ft 35. Ratio of Riffle Slope to Mean: 1.5 Mean: 1.0 Mean: 1.0 Mean: 1.0 Mean: N/A Average Slope (Sriff/Sbkf) Range: 0.4 - 5.1 Range: 0.5 - 1.2 Range: 0.5 - 1.2 Range: 0.5 - 1.2 Range: 36. Maximum Riffle Mean: 1.8 ft Mean: 0.9 ft Mean: 1.3 ft Mean: 1.8 ft Mean: N/A Depth (driff) Range: 0.8 ft - 2.9 ft Range: 0.8 ft - 0.9 Range: 1.3 ft - 1.4 Range: Range: ft ft 37. Ratio of Riffle Depth Mean: 2.4 Mean: 1.5 Mean: 1.9 Mean: 1.5 Mean: N/A to Bankfull Mean Depth Range: 1.1 - 3.8 Range: 1.4 - 1.5 Range: 1.8 - 2.0 Range: 1.4 - 1.5 Range: (driff/dbkf) 38. Run Slope (Srun) Mean: 0.055 ft/ft Mean: 0.0394 ft/ft Mean: 0.0231 ft/ft Mean: 0.042 ft/ft Mean: N/A Range: 0.0 - .25 ft/ft Range: 0.03152 Range: 0.1848 ft/ft Range: 0.034 ft/ft Range: ft/ft - 0.04334 ft/ft - 0.02541 ft/ft 0.05 ft/ft 39. Ratio of Run Slope to Mean: 1.4 Mean: 1.0 Mean: 1.0 Mean: 1.0 Mean: N/A Average Slope (Srun/Sbkf) Range: 0.0 - 6.2 Range: 0.8 - 1.1 Range: 0.8 - 1.1 Range: 0.8 - 1.1 Range: 40. Maximum Run Depth Mean: 2.3 ft Mean: 1.1 ft Mean: 1.3 ft Mean: 2.5 ft Mean: N/A (drun) Range: 1.6 ft - 3.0 ft Range: 0.8 ft - 1.6 Range: 1.0 ft - 1.9 Range: 1.8 ft - 3.5 Range: ft ft ft 41. Ratio of Run Depth to Mean: 3.3 Mean: 1.9 Mean: 1.9 Mean: 1.9 Mean: N/A Bankfull Mean Depth Range: 2.3 - 4.3 Range: 1.4 - 2.7 Range: 1.4 - 2.7 Range: 1.4 - 2.7 Range: (drun/dbkf) 42. Slope of Glide (Sgl) Mean: 0.014 ft/ft Mean: N/A Mean: N/A Mean: N/A Mean: N/A Range: 0.0 - 0.071 Range: Range: Range: Range: ft/ft 43. Ratio of Glide Slope to Mean: 0.3 Mean: N/A Mean: N/A Mean: N/A Mean: N/A Average Water Surface Range: 0.0 - 1.8 Range: Range: Range: Range: Slope (Sgl/Sws) 44. Maximum Glide Mean: 2.6 ft Mean: N/A Mean: N/A Mean: N/A Mean: N/A Depth (dgl) Range: 2.2 ft - 2.8 ft Range: Range: Range: Range: 45. Ratio of Glide Depth to Mean: 3.7 Mean: N/A Mean: N/A Mean: N/A Mean: N/A Bankfull Mean Depth Range: 3.1 - 4.0 Range: Range: Range: Range: (dgl/dbkf) 46. Slope of Step (Sst) Mean: 0.014 ft/ft Mean: 0.0578 ft/ft Mean: 0.03465 ft/ft Mean: 0.062 ft/ft Mean: N/A Range: 0.0 - 0.071 Range: 0.0308 ft/ft Range: 0.01848 Range: 0.032 ft/ft Range: ft/ft 0.1078 ft/ft ft/ft - 0.06468 ft/ft 0.12 ft/ft Table2DimensionlessratiosALL.xls 3 of 4 Existing Channel Proposed Reach Proposed Reach Reference Reach USGS Gage Trout Cove Upstream Downstream Station Branch Confluence with Confluence with Tributary Tributary Variables 47. Ratio of Step Slope to Mean: 0.3 Mean: 1.5 Mean: 1.5 Mean: 1.5 Mean: N/A Average Water Surface Range: 0.0 - 1.8 Range: 0.8 - 2.8 Range: 0.8 - 2.8 Range: 0.8 - 2.8 Range: Slope (Sst/Sws) 48. Maximum Step Depth Mean: N/A Mean: 0.9 ft Mean: 1.0 ft Mean: 1.9 ft Mean: N/A (dst) Range: Range: 0.4 ft - 1.2 Range: 0.5 ft - 1.4 Range: 0.9 ft - 2.6 Range: ft ft ft 49. Ratio of Step Depth to Mean: N/A Mean: 1.5 Mean: 1.5 Mean: 1.5 Mean: N/A Bankfull Mean Depth Range: Range: 0.7 - 2.0 Range: 0.7 - 2.0 Range: 0.7 - 2.0 Range: (dst/dbkf) Materials: Particle Size Distribution of Channel Material Existing Channel Trout Cove Branch Proposed Reach Upstream Confluence with Tributary Proposed Reach Downstream Confluence with Tributary Reference Reach USGS Gage Station D16 n/a Expected t o coarsen 3 mm D35 n/a 12 mm D50 0.3 20 mm D84 33 120 mm D95 86 262 mm Particle Size Distribution of Bar Material D16 3 n/a Expected t o coarsen 2 mm D35 18 0.9 9 mm D50 28 4 18 mm D84 48 34 61 mm D95 77 60 83 mm Largest Size Particle on Bar 106 106 110 mm Sediment Transoort: Sediment ranspo Existing Proposed Proposed Validation (Based on Bankfull Shear Stress) Calculated value (mm) from curve 180 140 100 Value from Sheilds Curve (lb/ft2) 1.7 1.5 0.88 Critical dimensionless shear stress 0.048 0.048 0.044 Minimal mean dbkf (ft) calculated using critical dimensionless shear stress equations 0.5 0.5 1.0 Table2DimensionlessratiosALL.xls 4 of 4 MORPHOLOGICAL CHARACTERISTICS OF THE EXISTING AND PROPOSED CHANNEL WITH GAGE STATION AND REFERENCE REACH DATA (Adapted from Rosgen, 1996) Restoration Site: UT to Trout Cove Branch at Staurlite Farms, Clay County, NC USGS Gage Station: #03550000 Valley River at Tomotla, NC, Cherokee County Reference Reach: Big Tuni Creek at Tuni Gap Road, Clay County, NC Existing Channel Proposed Reach USGS Gage Variables Unnamed Tributary Unnamed Tributary Reference Reach Station 1. Stream Type C5/E5 134a B4a 2. Drainage Area 0.06 sq mi 0.06 s mi 2.85 sq mi 104 sq mi 3. Bankfull Width (Wbkf) Mean: 5.3 ft Mean: 7.0 ft Mean: 29.5 ft Mean: 108.0 ft Range: 2.6 ft - 7.5 ft Range: Range: 24.9 ft - Range: 34.1 ft 4. Bankfull Mean Depth Mean: 0.6 ft Mean: 0.5 ft Mean: 1.3 ft Mean: 4.6 ft (dbkf) Range: 0.9 ft - 0.4 ft Range: Range: 1.2 ft - 1.4 ft Range: 5. Width/Depth Ratio Mean: 9.5 Mean: 15.0 Mean: 22.7 Mean: 23.5 (Wbkf/dbkf) Range: 3.0 - 17.0 Range: Range: 19.2 - 26.2 Range: 6. Bankfull Cross- Mean: 2.9 ft2 Mean: 3.2 ft2 Mean: 38.4 ft2 Mean: 498.0 ft2 Sectional Area (Abkf) Range: 2.2 ft2 - 3.3 Range: Range: 34.3 ft2 - Range: ft2 42.4 ft2 7. Bankfull Mean Velocity Mean: 5.8 fps Mean: 5.3 fps Mean: 9.3 Mean: 3.5 fps (Vbkf) Range: 4.1 fps - 6.9 Range: 3.7 fps - 6.9 Range: 5.8 fps - Range: fps fps 11.2 fps 8. Bankfull Discharge, cfs Mean: 16.8 cfs Mean: 17.0 cfs Mean: 356.5 cfs Mean: 1,750 cfs (Qbkf) Range: 11.9 cfs - Range: 11.8 cfs - Range: 319 cfs - Range: 20.0 cfs 22.1 cfs 394 cfs 9. Maximum Bankfull Mean: 1.4 ft Mean: 0.7 ft Mean: 1.9 ft Mean: N/A Depth (dmax) Range: 1.0 ft - 2.0 ft Range: 0.7 - 0.8 Range: 1.8 ft - 2.0 Range: ft 10. Ratio of Low Bank Mean: N/A Mean: 1.2 Mean: 1.0 Mean: N/A Height to Max. Bankfull Range: Range: 1.0 - 1.5 Range: Range: Depth (Bhlow/dmax) 11. Width of Flood Prone Mean: 15.6 ft Mean: 12.6 ft Mean: 45.0 ft Mean: N/A Area (Wfpa) Range: 5.2 ft - 25.0 ft Range: 9.8 ft - 15.4 ft Range: 40.0 ft - Range: 50.0 ft 12. Entrenchment Ratio Mean: 3.0 Mean: Mean: 1.6 Mean: N/A (Wfpa/Wbkf) Range: 1.0 - 4.8 Range: 1.4 - 2.2 Range: 1.4 - 1.7 Range: 13. Meander Length (Lm) Mean: N/A Mean: N/A Mean: 210.0 ft Mean: N/A Range: Range: Range: 195.0 ft - Range: 225.0 ft 14. Ratio of Meander Mean: N/A Mean: N/A Mean: 7.1 Mean: N/A Length to Bankfull Width Range: Range: Range: 6.6 - 7.6 Range: (Lm/Wbkf) 15. Raduis of Curvature Mean: 170 ft Mean: 170 ft Mean: 84.3 ft Mean: N/A (Rc) Range: Range: Range: 54.0 ft - Range: 147.0 ft 16. Ratio of Radius of Mean: 32.1 Mean: 24.3 Mean: 2.9 Mean: N/A Curvature to Bankfull Range: Range: Range: 1.8 - 5.0 Range: Width (Rc/Wbkf) Table2DimensionlessratiosTRlB.xls 1 of 4 Existing Channel Proposed Reach USGS Gage Variables Unnamed Tributary Unnamed Tributary Reference Reach Station 17. Belt Width (Wblt) Mean: 26 ft Mean: 26 ft Mean: 76.5 ft ean: N/A Range: Range: Range: 66.0 ft - Range: 87.0 ft 18. Meander Width Ratio Mean: 4.9 Mean: 3.7 Mean: 2.6 Mean: N/A (Wblt/Wbkf) Range: Range: Range: 2.2 - 2.9 Range: 19. Sinuosity (Stream Mean: 1.06 Mean: 1.04 Mean: 1.14 Mean: N/A length/valley distance) (k) Range: Range: Range: Range: 20. Valley Slope (ft/ft) Mean: 0.05 ft/ft Mean: 0.0507 ft/ft Mean: 0.0485 ft/ft Mean: N/A Range: Ran e: Ran e: Range: 21. Average Water Mean: 0.048 ft/ft Mean: 0.0487 ft/ft Mean: 0.044 ft/ft Mean: N/A Surface Slope or Bankful Range: Range: Range: Range: Slope for Reach (Sbkf or Savg)=(Svalley/k) 22. Pool Slope (Spool) Mean: 0.034 ft/ft Mean: 0.0 Mean: 0.02 ft/ft Mean: N/A Range: Range: Range: 0.009 ftfft - Range: 0.046 ft/ft 23. Ratio of Pool Slope to Mean: 0.7 Mean: 0.0 Mean: 0.6 Mean: N/A Average Slope Range: Range: Range: 0.2 - 1.0 Range: (Spool/Sbkf) 24. Maximum Pool Depth Mean: 2.1 ft Mean: 1.2 ft Mean: 2.9 ft Mean: N/A (dpool) Range: 1.5 ft - 2.8 ft Range: 0.9 ft - 1.5 ft Range: 2.2 ft - 3.9 ft Range: 25. Ratio of Maximum Mean: 3.5 Mean: 2.4 Mean: 2.4 Mean: N/A Pool Depth to Bankfull Range: 2.5 - 4.7 Range: 1.7 - 3.0 Range: 1.7 - 3.0 Range: Mean Depth (dpool/dbkf) 26. Pool Width (Wpool) Mean: 3.8 ft Mean: 4.9 ft Mean: 23.1 ft Mean: N/A Range: 2.4 ft - 5.2 ft Range: Range: Range: 27. Ratio of Pool Width to Mean: 0.7 Mean: 0.7 Mean: 0.7 Mean: N/A Bankfull Width Range: 0.4 - 1.0 Range: Range: Range: (Wpool/Wbkf) 28. Bankfull Cross- Mean: 4.0 ft2 Mean: 3.5 ft2 Mean: 40.7 ft2 Mean: N/A Sectional Area at Pool Range: 3.9 ft2 - 4.1 Range: Range: Range: (Apool) ft2 29. Ratio of Pool Area to Mean: 1.4 Mean: 1.1 Mean: 1.1 Mean: N/A Bankfull Area Range: 1.3 - 1.4 Range: Range: Range: (Apool/Abkf) 30. Pool to Pool Spacing Mean: 165.1 ft Mean: 13.3 ft Mean: 59.1 ft Mean: N/A (p-p) Range: 76.6 ft - 253.7 Range: 2.1 ft - 24.5 ft Range: 10.8 ft - Range: ft 118.1 ft 31. Ratio of Pool-to-Pool Mean: 31.1 Mean: 1.9 Mean: 1.9 Mean: N/A Spacing to Bankfull Width Range: 14.4 - 47.9 Range: 0.3 - 3.5 Range: 0.3 - 3.5 Range: (P-p/Wbkf) 32. Pool Length (Lp) Mean: 23.5 ft Mean: 2.8 ft Mean: 11.2 ft Mean: N/A Range: 17.9 ft - 29.2 Range: 0.7 ft - 5.6 ft Range: 2.7 ft - 23.1 Range: ft ft 33. Ratio Pool Length to Mean: 4.4 Mean: 0.4 Mean: 0.4 Mean: N/A Bankfull Width (Lp/Wbkf) Range: 3.4 - 5.5 Range: 0.1 - 0.8 Range: 0.1 - 0.8 Range: Tabie2Dimensionless ratiosTRIB.xls 2 of 4 Existing Channel Proposed Reach USGS Gage Variables Unnamed Tributary Unnamed Tributary Reference Reach Station 33. Riffle Slope (Sriff) Mean: 0.052 ft/ft Mean: 0.0487ft/ft Mean: 0.041 ft/ft Mean: N/A Range: 0.033 ft/ft - Range: 0.02435 ft/ft - Range: 0.023 ft/ft - Range: 0.077 ft/ft 0.05844 ft/ft 0.0.49 ft/ft 34. Ratio of Riffle Slope Mean: 1.1 Mean: 1.0 Mean: 1.0 Mean: N/A to Average Slope Range: 0.7 - 1.6 Range: 0.5 - 1.2 Range: 0.5 - 1.2 Range: (Sriff/Sbkf) 35. Maximum Riffle Mean: 1.4 ft Mean: 0.8 ft Mean: 1.8 ft Mean: N/A Depth (driff) Range: 1.0 ft - 2.0 ft Range: 0.7 ft - 0.8 ft Range: Range: 36. Ratio of Riffle Depth Mean: 2.3 Mean: 1.5 Mean: 1.5 Mean: N/A to Bankfull Mean Depth Range: 1.7 - 3.3 Range: 1.4 - 1.5 Range: 1.4 - 1.5 Range: (driff/dbkf) 37. Run Slope (Srun) Mean: N/A Mean: 0.0487 ft/ft Mean: 0.042 ft/ft Mean: N/A Range: Range: 0.03896 ft/ft - Range: 0.034 ft/ft - Range: 0.05357 ft/ft 0.05 ft/ft 38. Ratio of Run Slope to Mean: N/A Mean: 1.0 Mean: 1.0 Mean: N/A Average Slope (Srun/Sbkf) Range: Range: 0.8 - 1.1 Range: 0.8 - 1.1 Range: 39. Maximum Run Depth Mean: N/A Mean: 0.9 ft Mean: 2.5 ft Mean: N/A (drun) Range: Range: 0.7 ft - 1.3 ft Range: 1.8 ft - 3.5 ft Range: 40. Ratio of Run Depth to Mean: N/A Mean: 1.9 Mean: 1.9 Mean: N/A Bankfull Mean Depth Range: Range: 1.7 - 2.7 Range: 1.4 - 2.7 Range: (drun/dbkf) 41. Slope of Glide (Sgl) Mean: N/A Mean: N/A Mean: N/A Mean: N/A Range: Ran e: Range: Range: 42. Ratio of Glide Slope to Mean: N/A Mean: N/A Mean: N/A Mean: N/A Average Water Surface Range: Range: Range: Range: Slope (Sgl/Sws) 43. Maximum Glide Mean: N/A Mean: N/A Mean: N/A Mean: N/A Depth (dgl) Range: Range: Range: Range: 44. Ratio of Glide Depth Mean: N/A Mean: N/A Mean: N/A Mean: N/A to Bankfull Mean Depth Range: Range: Range: Range: (dgl/dbkf) 45. Slope of Step (Sst) Mean: 0.278 ft/ft Mean: 0.07305 ft/ft Mean: 0.062 ft/ft Mean: N/A Range: 0.074 ft/ft - Range: 0.03896 ft/ft - Range: 0.032 ft/ft - Range: 0.566 ft/ft 0.13636 ft/ft 0.12 ft/ft 46. Ratio of Step Slope to Mean: 7.8 Mean: 1.5 Mean: 1.5 Mean: N/A Average Water Surface Range: 1.5 - 11.8 Range: 0.8 - 2.8 Range: 0.8 - 2.8 Range: Slope (Sst/Sws) 47. Maximum Step Depth Mean: N/A Mean: 0.7 ft Mean: 1.9 ft Mean: N/A (dst) Range: Range: 0.3 ft - 1.0 ft Range: 0.9 ft - 2.6 Range: ft 48. Ratio of Step Depth to Mean: N/A Mean: 1.5 Mean: 1.5 Mean: N/A Bankfull Mean Depth Range: Range: 0.7 - 2.0 Range: 0.7 - 2.0 Range: (dst/dbkf) Table2DimensionlessratiosTRlB.xls 3 of 4 Materials: Particle Size Distribution of Channel Material Existing Channel Proposed Reach Reference Reach SGS Gage Station D16 n/a Expected to coarsen 3 mm D35 0.1 mm 12 mm D50 0.3 mm 20 mm D84 13 mm 120 mm D95 23 mm 262 mm Particle Size Distribution of Bar Material D16 0.2 mm 2 mm D35 1.5 mm 9 mm D50 6.0 mm 18 mm D84 22 mm 61 mm D95 37 mm 83 mm Largest Size Particle on Ba 55 mm 14 oz 110 mm Sediment Transport: Sediment ranspo Existing Proposed Validation (Based on Bankfull Shear Stress) Calculated value (mm) from curve 15 80 Value from Sheilds Curve (lb/ft2) 0.13 0.8 Critical dimensionless shear stress 0.15 0.15 Minimal mean dbkf (ft) calculated using critical dimensionless shear stress equations 3.8 0.8 Table2DimensionlessratiosTRIB.xis 4 of 4 co co Rod (gt) co 0 cn o cn o v, o --- ---- -- --1- _-r-_ ?Lz I I I_ I _. L_-1_ I I I I I I I I ! ! _L I I : I I I i ? I I I I! I I I I I ? l i l I I '? I ? ? I I i I I I I I- ?- I I I i I I I I I I I I I I I I I I I I I I I ! I- I I I I I I I! I I -1 I I ! _ 1 I I i I_ _i- -I_ I- -J I I I I ; ! L I I! I I I I I I I I! I I I I I I I l i! I I I I I I I I I I I I I I I I I I I I I I I i I I ? ? I I I I I ? I ! I I __ I I I I I? ! I! I I I I I I I I I ! i! I I I I I I I! I I I' I I I I I I I I I I I I I I I I i I I I I I I i ' i l l I I I I I I I I I I I I I- i- 1 I I I I_ I I I I '? __ !? -i I I I I I I I I I I I I " I I I I I I I I I I I I I! I I l i I I I I I I i i I I I I I I I I I I i I I I I I I I I I I I! ! I! I I I I I I I I I --i t t I I t I ? I I I -t I I t t 1 I I 1 I I I I I I I ! I I I I! I l i l ( I I I I I I I i I I I I I i I I I I I I I I I II I I I I I I I I I I I i l l I I I I I I I I I I I I I I I I I I n" I I ! I ? '? I I I ! I I i I ?? ? ! I I ! I I I I I I i I I I I ! I I I I _ I ! I ' I I I I I I I I W i I I I I! I I ! i i ! 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I I I I I I I I I I I I I I I I I I i t I I I I I I I I v 1 1 1 1 1 1 I I I I I I I I I I I I I I I I I I I I I I i I I I I I I L _'?_ I I _I I I I I ? ! I I C I I I i I I! I i I I I I' I I I I I I I y! I I I I ! I! I l I I I I I I I I I I ! I I I I I I I I I I I I I I I I I I I I I ! i ___ _- I i I I I I I I I I I I I i I ! ! I I I I I I 1 1 1 I I I I I I I l i l I I I I I X O O O 0 O N O O 0 zr N W O O ;p CD O O O 0 O O O O?O? W A T F9QG r CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr. David Gonos Staurolite Farms 166 McCray Road Brasstown, NC 28902 February 12, 2002 Michael F. Easley Governor William G. Ross, Jr., Secretary Department of Environment and Natural Resources Gregory J. Thorpe, Ph.D., Acting Director Division of Water Quality Subject: Trout Cove Branch Stream Restoration DWQ Project No. 020164 Clay County Dear Mr Gonos: The Wetlands Unit staff reviewed the stream work plans for the subject project and determined that additional information is necessary to complete the technical review process. The required additional information is as follows: 1. In Stream Structures and/or Channel Blocks Please specify minimum length of trunk required for a root wad. Also please specify average rock size for vanes, cross vanes, or other grade control structures. 2. Morphological Measurements Table Please complete the Morphological Measurements Table provided in Appendix B of the site plans must contain the information specified on page 13 of The Internal Technical Guide for Stream Work in North Carolina, April 2001. 3. Pebble Count A pebble count should be provided for the entire stream reach as well as a riffle section. 4. Sediment Transport Analysis A sediment transport analysis can confirm that a stream has been properly designed. A naturally stable stream transports its bedload in equilibrium so that there is not net aggradation or degradation over the stream reach. As such, it is necessary that the predicted sediment transport in the design stream be demonstrated to be in equilibrium to ensure overall stability will be achieved. 5. Reference Reach A reference reach must be at least 20 bankfull widths or two full meander lengths at a minimum. Please provide the longitudinal profile of the reference reach. Until this information is received, I will place this project on hold due to incomplete information (15A NCAC 2H .0507(a)(4)).If you have any questions or would like to discuss this project, please contact me at (919) 733-9584. Also, please note that the NCDENR Internal Technical Guide for Stream Work in North Carolina, April 2001, and other documents and information can be downloaded from the Wetlands Unit web site at http://h2o.ehnr.state.nc.us/ncwetlands/restore.htmi. Sincerely, ohn Dorney Wetlands Unit Supervisor cc: Asheville Regional Office Dave Penrose File William Scott Hunt, Arcadis, PO Box 31388, Raleigh, NC 27607-5905 North Carolina Division of Water Quality, 401 Wetlands Certification Unit, 1650 Mail Service Center, Raleigh, NC 27699-1650 (Mailing Address) 2321 Crabtree Blvd., Raleigh, NC 27604-2260 (Location) 919-733-1786 (phone), 919-733-6893 (fax), http://h2o.enr.state.nc.us/ncwetlands/ ARCADIS G&M To: NC Division of Water Quality 401/Wetlands Unit 1650 Mail Service Center Raleigh, NC 27699-1650 kz, J From: Robert Lepsic Copies: _. 1 s-v r? Date: 4 February 2002 Subject: ARCADIS G&M Project No.: Trout Cove Branch Stream Restoration, Clay NC601035.0000 County NC Transmittal Letter ARCADIS G&M of North Carolina, Inc. P.O. Box 31388 Raleigh, NC 27622-1388 2301 Rexwoods Drive - Suite 102 Raleigh, NC 27607-3366 Tel 919 782 5511 Fax 919 782 5905 TRA We are sending you: ® Attached ? Under Separate Cover Via the Following Items: ? Shop Drawings ® Plans ? Specifications ? Change Order ? Prints ? Samples ? Copy of Letter ? Reports ® Other: Section 401 PreConstruction Notification for Mationwide Permits 13 and 27 Copies Date Drawing No. Rev. Description Action* Action* ? A Approved ? CR Correct and Resubmit ? Resubmit Copies ? AN Approved As Noted ? F File ? Return Copies ? AS As Requested ? FA For Approval ? Review and Comment ® Other: please process. Comments: Enclosd are seven copies of a PCN for a stream restoration project located in Clay County. The proposed project will restore approximately 4,000 linear feet of degraded stream. Approval is also being sought from USACE and NCWRC. Please contact Ms. Lucy Cole Gratton of the Hiwassee River Watershed Coalition, Inc. at (706) 896-8091 with any questions. Our ref.: Page: g:\tra\601035_troutcove\correspondence\dwqtrans.doc 1/1 Office Use Only: Form Version October 2001 USACE Action ID No. DWQ No. If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A" rather than leaving the space blank. 1. Processing 1. Check all of the approval(s) requested for this project: ® Section 404 Permit FED ? Section 10 Permit ® 401 Water Quality Certification ? Riparian or Watershed Buffer Rules 2. Nationwide, Regional or General Permit Number(s) Requested: #13 and #27 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 (see section VIII - Mitigation), check here: ? II. Applicant Information 1. Owner/Applicant Information Name: Staurolite Farms ' attn: Mr. David Gonos Mailing Address: 166 McCray Road Brasstown. NC 28902 Telephone Number: (828) 389-8820 Fax Number: E-mail Address: 2. Agent 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:_ Ms Lucy Cole Grafton Company Affiliation: Hiwassee River Watershed Coalition: Inc Mailing Address: 1467 Mining Gap Trail Young Harris GA 30582 Telephone Number: (706) 896-8091 Fax Number: E-mail Address: Page 1 of 10 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: Trout Cove Branch Stream Restoration at Staurolite Farms 2. T.I.P. Project Number or State Project Number (NCDOT Only): N/A 3. Property Identification Number (Tax PIN): 4. Location County: Clay Nearest Town: Brasstown, NC Subdivision name (include phase/lot number): N/A Directions to site (include road numbers, landmarks, etc.): Old Highway 64 to Trout Cove Branch Road Go north on Trout Cove Branch Road approximately _2 miles. The project is located east of Trout Cove Branch Road at the Staurolite Farm (See Figure 1). 5. Site coordinates, if available (UTM or Lat/Long): N 35 130.3 W 83 54 19.88 (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.) 6. Describe the existing land use or condition of the site at the time of this application: Agriculture: pastureland and hayfields - 7. Property size (acres): Parcel approximately 300 acres Work will only occur along streams. 8. Nearest body of water (stream/river/sound/ocean/lake): Trout Cove Branch and UT to Trout Cove Branch 9. River Basin: Hiawassee (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) Page 2 of 10 10. Describe the purpose of the proposed work:_ The purpose of the proposed work is to improve water Quality in the Hiawassee River Watershed through stream restoration Restoration would be accomplished by establishing a stable dimension pattern and profile for Trout Cove Branch and its Unnamed Tributary Establishing apermanent riparian buffer, along with structures used to stabilize the bed and banks will create additional wildlife habitat. Restoration will follow natural channel design methodologies (See attached Stream Restoration Plan). 11. List the type of equipment to be used to construct the project: Track hoe, bulldozer, front-end loader, and dump truck. 12. Describe the land use in the vicinity of this project:_ Forested and Agriculture: pastureland and hayfields. 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: N/A 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 Page 3 of 10 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. Wetland Impacts 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) ype of Wetland*** N/A * List each impact se parately and identify temporary im pacts. Impacts include, but are not limited to: mechanized clearinp_ oradino fill excavation, flooding, tc m ramage, 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 bgR://www.ferna.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.) List the total acreage (estimated) of existing wetlands on the property: N/A Total area of wetland impact proposed: N/A 2. Stream Impacts, including all intermittent and perennial streams Stream Impact Site Number (indicate on ma Type of Impact of Length Impact (linear feet) Stream Name** Average Width of Stream Before Impact Perennial or Intermittent. Tease specify) Relocation 1,986 If before Trout Cove Branch 10 ft (bankfull) P 2,090 if after Trout Cove Branch P Stabilization 3,1551f Trout Cove Branch 10 ft (bankfuil) P Stabilization 900 if UT to Trout Cove 5 ft (bankfull) P * 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 fed before and after, and net losstgain), stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, ditchingtstnaightening, 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 Page 4 of 10 www.us s.eov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com. www.mamudst.com, etc.). Cumulative impacts (linear distance in feet) to all streams on site:--4,055 If 3. Open Water Impacts, including Lakes, Ponds, Estuaries, Sounds, Atlantic Ocean and any other Water of the U.S. Open Water Impact Site Number (indicate on ma ype of Impact* Area of Impact (acres) Name of Waterbod (if applicable) y Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc.) N/A ' List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging, flooding, drainage, bulkheads, etc. 4. 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.): N/A 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. Trout Cove Branch and its unnamed tributary are both unstable It is necessary to impact the streams to stabilize their beds and banks Structures such as rock cross vanes and root wads, Page 5 of 10 would be installed for stabilization. These structures along with establishing a permanent riparian corridor, will also improve wildlife habitat. 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 environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCWRP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o.enr.state.nc.us/ncwetiands/strmp-ide.html. 1. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. N/A 2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration Program (NCWRP) with the NCWRP's written agreement. Check the box indicating that you would like to pay into the NCWRP. Please note that payment into the NCWRP must be reviewed and approved before it can be used to satisfy mitigation requirements. Applicants will be notified early in the review process by the 401/Wetlands Unit if payment into the NCWRP is available as an option. For additional information regarding the application process for the NCWRP, check the NCWRP website at Page 6 of 10 h 2://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 (DWQ Only) Does the project involve an expenditure of public funds or the use of public (federal/state/local) land? Yes ® No El 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 ? X. Proposed Impacts on Riparian and Watershed Buffers (DWQ Only) 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 identi fy N/A _)? 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. Page 7 of 10 Zone* s care f t Multiplier Mitt uirei 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. N/A XI. Stormwater (DWQ Only) 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. N/A. All bare stream banks will be seeded and stabilized at the end of each day. XII. Sewage Disposal (DWQ Only) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. N/A XM. Violations (DWQ Only) 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 Page 8 of 10 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). of - zz- aZ Applicant/Agenfs Signature Date (Agent's signature is valid only if an authorization letter from the applicant is provided.) Page 9 of 10 STREAM RESTORATION PLAN Trout Cove Branch and Unnamed Tributary to Trout Cove Branch Clay County, North Carolina The purpose of the proposed project (See Figure 1) is to improve water quality in the Hiawassee River Watershed through stream restoration. The Hiwassee River Watershed Coalition in conjunction with the United States Department of Agriculture (USDA) Natural Resources Conservation Service in Clay County is funding the work through a grant received from the North Carolina Clean Water Trust Fund. The existing streams (Trout Cove Branch and its unnamed tributary) currently lack riparian corridors and exhibit severe bank erosion. This is due to past land uses including grazing, mowing, and other maintenance activities. Stream banks vary in height from 1 to 6 feet and in width from 10 to 30 feet. The dominant vegetation onsite is grasses and forbs. Blackberry (Rubus allegheniensis) and tag alder (Alnus serrulata) occur sporadically along the streams. There are currently four at grade stream crossings and one culvert crossing along Trout Cove Branch. Stream restoration along approximately 3,000 linear feet of Trout Cove Branch and 900 linear feet of the unnamed tributary will be accomplished using natural channel design methodologies. The current streams are classified as unstable "B5" stream types. ARCADIS recommends establishing stable "134" type streams along both reaches. Both streambeds are expected to coarsen. A stable "B4" stream (Big Tuni Creek) located within the same hydrophysiographic province served as a reference reach (See Figure 2). The proposed stream dimension, pattern, and profile were based on dimensionless ratios developed from the reference reach. Table 1 contains the morphological characteristics of existing, proposed, reference reach, and gage station streams. The proposed design will relocate 2,000 linear feet of Trout Cove Branch upstream of the confluence with the unnamed tributary. The 1,000-foot section downstream of the confluence and the 900-foot unnamed tributary will be stabilized in place. Structures (cross vanes and root wads) will be placed in the streams to maintain grade and reduce near bank shear stress. Cross vanes will be installed at the head of steps and at the head of some riffles. Root wads will be used to protect newly constructed stream banks where the stream was relocated. In addition, they will create a more diverse habitat. Oxbow ponds/wetlands may be created in the old streambed. The size and location of the ponds/wetlands will be determined during construction. A permanent 50-foot buffer will be established from the top of the new stream banks. The nine-acre buffer will be fenced to prevent livestock access. The buffer will be planted with Rich Cove Forest species and include available specimens of beech (Fagus grandifolia), white ash (Fraxinus americana), black cherry (Prunus serotina), cucumber magnolia (Magnolia acuminata), eastern hemlock (Tsuga canadensis), yellow birch (Betula alleghaniensis), river birch (B. nigra), white oak (Quercus albs), ironwood (Carpinus caroliniana), witch hazel (Hamamalis virginiana), black willow (Salix nigra), flowering dogwood (Corpus florida), and tag alder (A. serrulata). The larger trees will be planted on 8- to 15-foot centers, and the smaller trees will be planted on 6- to 8-foot centers. This will give a density of 4 to 15 and 15 to 25 sterns per 1,000 square feet. Black willow, flowering dogwood, and tag alder will be planted along the stream banks as live stakes. In addition, transplanting of existing vegetation will be implemented, were appropriate. Erosion control matting will also be used along the stream banks as temporary protection from high flows until vegetation establishes. Page 10 of 10 -77 -16 2 50 - ?r/'T--? '?J '?-... it l` :` r eti f.7$'?Y c o v e x.22 ,.,.,/ ` ?"' s?:% ? .•I i , .?,c rr a L -L T'ro -Cove _ ?. -- ' ? - SITE LOCATION °I. ?:..`.?.2? 1. _> > - - - - i. ?.?.. ?'-•' ,I ?...\^ .r r 2004 - '` '\' tom' 1 .ai? f -_ ?A '' - w ? ? - •? D a ?? r ? ? Z: PQ?? .. ?? fit i aWCr.. OPer}fIII C - 97 n i . J) \? - ?Ogderl Ch r9 ?i ?? ?- y -- e,, -40 .1874 liIQ• ?ti?J ) a 1000 0 1000 2000 Feet N 0.2 0 0.2 0.4 Miles SCALE: 1:10,000 USGS 7.5 Minute T ra Mc Ma : PEACHTREE, NC " ARCADIS G&M o/North Carolina Inc. VICINITY MAP Figure No. NATURAL CHANNEL DESIGN STREAM RESTORATION PROJECT 2301 Rexwoods Drive TROUT COVE BRANCH Post Office Box 31388, Raleigh, NC 27622-1388 FUNDED SYHIWASSEE RIVER WATERSHED COALITION Tel: 919/782-5511 Fax: 919!782-5905 CLAY COUNTY NORTH CAROLINA ,t ' %'-= I tl } -? ? 'il ? ) i?11 ? ? / ? _ /fig--?1 _•,. ' )`, t', ' \ ,( C?: •^?- , '.A?t? ???.?? t ?? ?' - J ' I) `? ?? , t I /' , III 1,/^? _ -•, ` f' ??'? REFERENCE REACH lo°'illl LOCATION ?V, \ \ 1? I t //, j 1 }I1011?{V111 'Vt?l?}?????1 A r ' _ /?`/ , I-.~ ? ? ' `\ \ i a ' ?: ?? .mot , i ._1 t??\ ? ' 1'\ -.??%?1.... ?,•?`?? _ ? /:r+'? % J ? f' J.- t ? llf ? , (',.) __ !_ \ 7 ?''r, 11 `il "_} '• ?..,r^\? ???? 1 t ?•. ? \ ? \_, , f it)iyi k';? ??' I .,' ' I, 1 i .,---'mil i _ • ? ?? ? ?\ '??,•'?l (? r?l 1 ? 01 I 'Y ?X -- 1 / 1000 0 1000 2000 Feet N 0.2 0 0.2 0.4 Miles SCALE: 1:17,000 USOS 7.5 Minute Topographic Ma : TOPTON, NC r?" ARCADIS G&M REFERENCE REACH VICINITY MAP Figure No. of North Carolina Inc. NATURAL CHANNEL DESIGN STREAM RESTORATION PROJECT 2301 Rexwoods Drive TROUT COVE BRANCH 2 Post Office Box 31388, Raleigh, NC 27622-1388 FUNDED BYHIWASSEE RIVER WATERSHED COALITION Tel: 919/782-5511 Fax: 919!782-5905 CLAY COUNTY NORTH CAROLINA T 1\TtTL USH HCFF/A N-4 z ;z ? m W awF T? > °d a? 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Riparian or Watershed Buffer Rules 2. Nationwide, Regional or General Permit Number(s) Requested: #13 and #27 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 (see section VIII - Mitigation), check here: ? II. Applicant Information 1. Owner/Applicant Information Name: Staurolite Farms ' attn: Mr. David Gonos Mailing Address: 166 McCray Road Brasstown. NC 28902 Telephone Number: (828) 389-8820 Fax Number: E-mail Address: 2. Agent 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:_ Ms Lucy Cole Gratton Company Affiliation: Hiwassee River Watershed Coalition Inc. Mailing Address: 1467 Mining Gap Trail Young Harris GA 30582 Telephone Number: _ 706,) 896-8091 Fax Number: E-mail Address: Page 1 of 10 M. 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: Trout Cove Branch Stream Restoration at Staurolite Farms 2. T.I.P. Project Number or state Project Number (NCDOT Only): N/A 3. Property Identification Number (Tax PIN): 4. Location County: Clay Nearest Town: Brasstown. NC Subdivision name (include phase/lot number): N/A Directions to site (include road numbers, landmarks, etc.): Old Highway 64 to Trout Cove Branch Road Go north on Trout Cove Branch Road approximately 2 miles. The project is located east of Trout Cove Branch Road at the Staurolite Farm (See Figure 1). 5. Site coordinates, if available (UTM or Lat/Long): N 35 130.3 W 83 54 19.88 (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.) 6. Describe the existing land use or condition of the site at the time of this application: Agriculture: pastureland and hayfields 7. Property size (acres): Parcel approximately 300 acres Work will only occur along streams. 8. Nearest body of water (stream/river/sound/ocean/lake): Trout Cove Branch and UT to . Trout Cove Branch 9. River Basin: Hiawassee (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/mEL/.) Page 2 of 10 10. Describe the purpose of the proposed work: The Uurpose of the proposed work is to improve water Quality in the Hiawassee River Watershed through stream restoration Restoration would be accomplished by establishing a stable dimension, pattern and profile for Trout Cove Branch and its Unnamed Tributary Establishing a permanent riparian buffer along with structures used to stabilize the bed and banks will create additional wildlife habitat. Restoration will follow natural channel design methodologies (See attached Stream Restoration Plan). 11. List the type of equipment to be used to construct the project: Track hoe, bulldozer, front-end loader, and dump truck 12. Describe the land use in the vicinity of this project:_ Forested and Agriculture: pastureland and hayfields. 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: N/A 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 Page 3 of 10 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. Wetland Impacts 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) ype of Wetland*** N/A --•-• ---•• .... r- '..y.o.o-r MIU WC41LI&y Lctnpvrary 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 htW://www.fema.eov. *** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond, Carolina Bay, bog, etc.) List the total acreage (estimated) of existing wetlands on the property: N/A Total area of wetland impact proposed: N/A 2. Stream Impacts, including all intermittent and perennial streams Stream Impact Site Number (indicate on ma Type of Impact Length of Impact (linear feet) Stream Name** Average Width of Stream Before Impact Perennial or Intermittent. (please specify) Relocation 1,9861f before Trout Cove Branch 10 ft (bankfull) P 2,0901f after Trout Cove Branch P Stabilization 3,1551f Trout Cove Branch 10 ft (bankfull) P Stabilization 9001f UT to Trout Cove 5 ft (bankfull) P * List each impact separately and identify temporary impacts. Impacts include, but am not limited to. culverts and associated rip-rap, dams (separately list impacts due to both structure and flooding), relocation (include linear fed before and after, and net losstgain), 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 Page 4 of 10 www.uses.eov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.t2 zone.com, www.manaudst.com, etc.). Cumulative impacts (linear distance in feet) to all streams on site: 4,055 If 3. Open Water Impacts, including Lakes, Ponds, Estuaries, Sounds, Atlantic Ocean and any other Water of the U.S. Open Water Impact Site Number (indicate on ma ype of Impact* Area of Impact Name of Waterbody (if applicable) Type of Waterbody (lake, pond, estuary, sound, bay, ocean, etc.) N/A List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging, flooding, drainage, bulkheads, etc. 4. 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.): N/A 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. Trout Cove Branch and its unnamed tributary are both unstable It is necessary to impact the streams to stabilize their beds and banks Structures such as rock cross vanes and root wads, Page 5 of 10 would be installed for stabilization. These structures along with establishing a permanent riparian corridor, will also improve wildlife habitat 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 environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCWR.P concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o.enr.state.nc.us/ncwetlands/strmgide.html. 1. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. N/A 2. Mitigation may also be made by payment into the North Carolina Wetlands Restoration Program (NCWRP) with the NCWRP's written agreement. Check the box indicating that you would like to pay into the NCWRP. Please note that payment into the NCWRP must be reviewed and approved before it can be used to satisfy mitigation requirements. Applicants will be notified early in the review process by the 401 /Wetlands Unit if payment into the NCWRP is available as an option. For additional information regarding the application process for the NCWRP, check the NCWRP website at Page 6 of 10 http //h'o 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 (DWQ Only) Does the project involve an expenditure of public funds or the use of public (federal/state/local) 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 ? X. Proposed Impacts on Riparian and Watershed Buffers (DWQ Only) 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 (Neese), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify N/A )? 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. Page 7 of 10 Zone* s uImpct are feet) Multiplier 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. N/A XI. Stormwater (DWQ Only) 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. N/A. All bare stream banks will be seeded and stabilized at the end of each day. XH. Sewage Disposal (DWQ Only) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. N/A XIII. Violations (DWQ Only) 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 Page 8 of 10 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). o i- Z, Z -,!5 Z_ Applicant/Agent's Signature Date (Agent's signature is valid only if an authorization letter from the applicant is provided.) Page 9 of 10 STREAM RESTORATION PLAN Trout Cove Branch and Unnamed Tributary to Trout Cove Branch Clay County, North Carolina The purpose of the proposed project (See Figure 1) is to improve water quality in the Hiawassee River Watershed through stream restoration. The Hiwassee River Watershed Coalition in conjunction with the United States Department of Agriculture (USDA) Natural Resources Conservation Service in Clay County is funding the work through a grant received from the North Carolina Clean Water Trust Fund. The existing streams (Trout Cove Branch and its unnamed tributary) currently lack riparian corridors and exhibit severe bank erosion. This is due to past land uses including grazing, mowing, and other maintenance activities. Stream banks vary in height from 1 to 6 feet and in width from 10 to 30 feet. The dominant vegetation onsite is grasses and forbs. Blackberry (Rubus allegheniensis) and tag alder (Alnus serrulata) occur sporadically along the streams. There are currently four at grade stream crossings and one culvert crossing along Trout Cove Branch. Stream restoration along approximately 3,000 linear feet of Trout Cove Branch and 900 linear feet of the unnamed tributary will be accomplished using natural channel design methodologies. The current streams are classified as unstable "B5" stream types. ARCADIS recommends establishing stable "B4" type streams along both reaches. Both streambeds are expected to coarsen. A stable "B4" stream (Big Tuni Creek) located within the same hydrophysiographic province served as a reference reach (See Figure 2). The proposed stream dimension, pattern, and profile were based on dimensionless ratios developed from the reference reach. Table 1 contains the morphological characteristics of existing, proposed, reference reach, and gage station streams. The proposed design will relocate 2,000 linear feet of Trout Cove Branch upstream of the confluence with the unnamed tributary. The 1,000-foot section downstream of the confluence and the 900-foot unnamed tributary will be stabilized in place. Structures (cross vanes and root wads) will be placed in the streams to maintain grade and reduce near bank shear stress. Cross vanes will be installed at the head of steps and at the head of some riffles. Root wads will be used to protect newly constructed stream banks where the stream was relocated. In addition, they will create a more diverse habitat. Oxbow ponds/wetlands may be created in the old streambed. The size and location of the ponds/wetlands will be determined during construction. A permanent 50-foot buffer will be established from the top of the new stream banks. The nine-acre buffer will be fenced to prevent livestock access. The buffer will be planted with Rich Cove Forest species and include available specimens of beech (Fagus grandifolia), white ash (Fraxinus americana), black cherry (Prunus serotina), cucumber magnolia (Magnolia acuminata), eastern hemlock (Tsuga canadensis), yellow birch (Betula alleghaniensis), river birch (B. nigra), white oak (Quercus alba), ironwood (Carpinus caroliniana), witch hazel (Hamamalis virginiana), black willow (Salix nigra), flowering dogwood (Corpus florida), and tag alder (A. serrulata). The larger trees will be planted on 8- to 15-foot centers, and the smaller trees will be planted on 6- to 8-foot centers. This will give a density of 4 to 15 and 15 to 25 stems per 1,000 square feet. Black willow, flowering dogwood, and tag alder will be planted along the stream banks as live stakes. In addition, transplanting of existing vegetation will be implemented, were appropriate. 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Trout Cove Branch eroding bank. Bank height approximately 5 feet. Photograph 5. Unnamed Tributary to Trout Cove Branch eroding bank. Bank height approximately 4 feet. G ATraX60103 5_TrovtCovLAPH OTO S.doc I Page: 3/3 Photograph 6. Unnamed Tributary to Trout Cove Branch eroding bank. Bank height approximately 3 feet.