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HomeMy WebLinkAbout20071505 Ver 4_Other Agency Comments_20151110From: Leslie, Andrea ] Sent: Tuesday, November lU'ZUl5 l:Ul PK4 To: Brown, David VVSAW Cc: Bryan Tompkins (bryan_tompkins@fwsgov); Fox, Tim; Barnett, Kevin; Price, Zan (George); 8urdette' Jennifer a; Clement Riddle Subject: Seven Falls Bonded Phases N[VVR[comments Attachments: Seven Fa||s8ondedPhases_LVVi||ovv&Fo||y[r_Henderson[o_VVR[[omments.pdf Attached are NCWRCammments on the Seven Falls Bonded PhaseaIP. omm Andrea Leslie Mountain Habitat Conservation Coordinator N(- Wildlife Resources Commission 20Q30 Great Smoky Mountain Expressway Waynesville, N(-2Q7Q6 828-558-6011; 828-400-4223 (cell) Get NC Wildlife U12date delivered to your inbox from the.N.C. Wildlife.ResourceCommission. smaU mau4 from this scrdcr N sul")jcrt m8vm ( robicmco"dsz'm'au4omybems6o*cdm third yartics S North Carolina Wildlife Resources Commission 9 Gordon Myers, Executive Director November 10, 2015 Mr. David Brown U.S. Army Corps of Engineers, Regulatory Branch 151 Patton Avenue, Room 208 Asheville, North Carolina 28801 -5006 SUBJECT: Seven Falls Bonded Phases Little Willow Creek and Folly Creek and unnamed tributaries (UTs), Henderson County Action ID#: SAW - 2013 -01 159 Dear Mr. Brown: Biologists with the North Carolina Wildlife Resources Commission (NCWRC) reviewed an individual permit application to account for stream and wetland impacts from unauthorized activities and proposed activities on Little Willow Creek, Folly Creek, and their unnamed tributaries in Henderson County. I attended on on -site meeting with representatives of Clearwater Environmental Consultants and regulatory agencies on August 11, 2015 and visited the site again on November 6, 2015. Our comments on this application are offered for your consideration under provisions of the Clean Water Act of 1977 (33 U.S.C. 466 et. seq.) and Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661- 667d). The Seven Falls Bonded Phases project is on a 302 -acre site, which is a portion of the original 1,400 -acre Seven Falls Golf and River Club, granted 401 and 404 permits in 2008. A Certificate of Non - compliance and numerous Notices of Violation were issued due to permit non- compliance and erosion and sedimentation problems associated with road building. The current individual permit accounts for 1,600 feet of unauthorized stream impacts associated mainly with road culverts and additional impacts of 192 stream feet and 0.01 wetland acre associated with new or lengthened culverts. Most impacts are on unnamed tributaries to Little Willow Creek. There are Rainbow Trout in the watershed, and sedimentation resulting from road building activities may have impacted trout. However, the proposed new activities should not impact trout and do not need to be avoided during the trout spawning moratorium. Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NC 27699 -1721 Telephone: (919) 707 -0220 • Fax: (919) 707 -0028 Seven Falls Bonded Phases Page 2 November 10, 2015 Little Willow & Folly Cr, Henderson Co Impacts The application characterizes unauthorized impacts and new proposed impacts associated with culvert installation, summing up the culvert length as length of stream impacted. Many of the installed culvert outlets are perched, not buried sufficiently, extremely long, and /or are placed at a steep grade, effectively serving as barriers to upstream movement of aquatic organisms. The application states that Impacts 3, 5, and 9 -13 do not meet requirements for aquatic life passage and /or structural stability. However, it further states that Impacts 3 and 5 are on small streams too small to support fish, and salamanders would be able to access culverts. No supporting documentation is provided for this statement, and we question its validity. Impacts 12 and 13 are also on streams likely too small to support fish, and the application states that a direct connection is not necessary. The objective of providing aquatic life passage is to enable all aquatic organisms —fish, salamanders, crayfish, and other aquatic invertebrates—to move freely through a crossing; we do not believe that these crossings meet this objective. There are numerous streams on the project site that are unstable and are a continuing source of sediment and /or systemic channel instability. For example, the channel downstream of Impact 4 is not in its original channel and is held upgrade of the lowest part of the valley by debris and a silt fence. The channel downstream of Impact 3 runs closely parallel to that below Impact 4 and drops through a series of headcuts into an extremely incised and unstable channel. We recommend that these streams be stabilized with natural channel design, restoring pattern, dimension, and profile. The stream that is east of impact 413 and runs along the border of the current project area has its origin in a sediment basin, which drops approximately 5 feet in grade to the stream channel. This drop is temporarily stabilized with rip rap, which is unlikely to serve as a permanent solution; the channel should be stabilized. Many streams on the bonded property are impacted by excessive sediment deposits, resulting from road building and land clearing activities. However, there is no mention of these impacts in the permit application. According to agency staff familiar with the site before impacts, many of the project area streams were in excellent condition before the initial 2008 permits were granted. We request that the applicant provide a characterization of the extent and nature of sedimentation in streams throughout the project area. In addition, we recommend that a thorough investigation of stream stability through the project area be provided and problem areas addressed. Mitigation Mitigation is proposed at a 1:1 ratio for 1,792 feet of previous and new impacts to stream. This mitigation would be provided through NC Division of Mitigation Services. The applicant proposes this ratio in order to stretch limited funding available through the bond funds held by Henderson County. It is apparent that instream impacts are much greater than the 1,792 feet of stream that have been culverted. In- stream habitats have been impacted by excessive sedimentation and channel instability, and free movement of aquatic organisms has been severed by numerous impassable culverts. Therefore, we recommend that a mitigation ratio closer to 2:1 be provided for the stated 1,792 feet of stream impacts. Seven Falls Bonded Phases Page 3 November 10, 2015 Little Willow & Folly Cr, Henderson Co As most streams in the project area were high quality headwater streams, we recommend that additional mitigation be provided in the form of preservation of high quality streams and riparian buffers. NCWRC welcomes the opportunity to work with regulatory agencies and the permittee to develop a mitigation plan to achieve this. Thank you for the opportunity to review and comment on this project. Please contact me at (828) 558 -6011 if you have any questions about these comments or need further assistance. Sincerely, Andrea Leslie Mountain Region Coordinator, Habitat Conservation Program ec: Clement Riddle, ClearWater Environmental Tim Fox, Zan Price, Kevin Barnett, and Jennifer Burdette, NC Division of Water Resources Bryan Tompkins, US Fish and Wildlife Service