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HomeMy WebLinkAbout20100078 Ver 1_More Info Letter_20100308LTA- WA =Affirj'?'Ar NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary March 8, 2010 Guy Pearce North Carolina Ecosystem Enhancement Program 1652 Mail Service Center Raleigh, North Carolina 27699-1652 Subject: Request for More Information 401 Water Quality Certification Elk Branch Stream Restoration Project DWQ Project # 2010-0078 Mitchell County Response deadline: April 5, 2010 Dear Mr. Pearce: The Division of Water Quality (DWQ) has performed a preliminary review of a 401 Water Quality Certification application submitted for the above referenced property. Additional information will be required in order to complete the review process. Please provide the following information so that we may continue to review your project. Additional Information Requested: 1. Application Item C. 3a provides that you intend to perform Priority 1 Restoration on 2,890 linear feet of stream channel. The enclosed Ecosystem Enhancement Program Restoration Plan Review for the Elk Branch Stream Restoration Plan letter which provides a review of a "Restoration plan for the Logan Creek Stream Restoration Site." Additionally, this letter concurs with 2,811 linear feet of restoration. You must clarify in the application the amount of stream restoration that will be performed, how much mitigation credit is being sought, and on what stream mitigation credit will be awarded. 2. Application Item C. 3a provides that you intend to perform Priority 1 Restoration on 2,890 linear feet of stream channel. Priority 1 restoration is defined as providing a new pattern, dimension, and profile by the Stream Mitigation Guidelines. Your submitted plans show that profile will be altered via the installation of step pools. You have not provided for pattern nor dimensional channel changes. Please modify your request in accordance with the Stream Mitigation Guidelines to reflect the type of work proposed. Location: 2090 U.S. Highway 70, Swannanoa, North Carolina 28778 Phone: 828.296-45001 FAX: 828-299-70431 Customer Service: 1-877-623-6748 Internet: www.ncwaterquality.org An Equal Opportunity 1 Affirmative Action Employer One NorthCarolina Am4rallil Guy Pearce March 8, 2010 Page 2 of 3 3. The submitted plan provides for a series of wooden step pools throughout the valley. As particle size is relatively small, and discharge velocity would not move large particles, when the log structures degrade and collapse, there will not be significant particles in the system to hold the step pools together. Without further information, assumptions of long term stability from the plan review cannot be made. You must submit reasoning / plans for this eventuality as part of your narrative. 4. The receiving streams are classified as C, Trout. Your plan does not discuss working outside the trout moratorium. You must submit how the trout moratorium will be complied with as part of your narrative. 5. The submitted plans do not meet the PCN instructions required 1:50 scale, full sized plan sheet, requirement. Additionally, details regarding stream location (both current and proposed) are not clear. Plans meeting the requirements of the PCN application instructions must be submitted as part of this request. On February 23, 2010, Mr. David Baker, along with Kevin Barnett of this office, performed a site visit. The following is a summation of the observations of that visit: • The lower section of Elk Branch is within 30 feet to the paved road surface. Full buffer credit cannot be awarded for any buffers which do not meet the Stream Mitigation Guielines. • The upper reach of Elk Branch (along pasture containing blue house) appears to have been historically rerouted against the valley wall, has a dense woody buffer on the uphill side, lacks buffer on the pasture side, and has defined cobble / gravel riffles. Abundant stone and may flies along with prolific aquatic snails were also documented within this area. • The main channel of Elk Branch appears stable in profile above and below Annie's Cove. No headcuts nor down cutting (degradation) were observed. • The only significant channel instability was at the Annie's Cove / wetland area. This office suggests that prior to committing a significant amount of time developing a response to the information request above, that consideration to a lesser impact, bank and buffer enhancement for the majority of this project be given. Additionally, based upon the number of comments and additional information requested, a pre-application meeting with all agencies involved, may be appropriate for future projects. Please provide your response in writing to the addresses below prior to close of business on April 5, 2010. Four copies of the required information should be provided to the 401 Permitting Unit at: Ian McMillan 401 Permitting Unit 1650 Mail Service Center Raleigh, NC 27699-1650 and a single copy to the Asheville Regional Office at: Kevin Barnett Surface Water Protection Section 2090 US HWY 70 Swannanoa, NC 28778 If we do not hear from you by the deadline, we will assume that you no longer want to pursue this project and we will consider the project withdrawn. Guy Pearce March 8, 2010 Page 3 of 3 This letter only addresses the preliminary application review and does not authorize any impacts to wetlands, waters or protected buffers. Please be aware that any impacts requested within your application are not authorized (at this time) by the DWQ. Please call Kevin Barnett 828-296-4657, if you have any questions. Sincerely, Roger C. Edwards, Regional Supervisor Surface Water Protection Asheville Regional Office cc: Micky Clemmons - Michael Baker Engineering, Inc. David Baker - US Army Corps of Engineers Asheville Field Office Ron Linville - North Carolina Wildlife Resources Commission Ian McMillan - 401 Permitting Unit County Planning ARO File copy S:\S WP\M itchell\401 s\Non-DOT\ 10-0079.EIk13 ranch\ 10-0078. Add Info. El k13 ranch. 03-05-2010. doc