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Home My WebLink About20171022 Ver 2_More Info Received_20190429Homewood, Sue From: carson dellinger <carsondellinger@gmail.com> Sent: Monday, April 29, 2019 9:23 PM To: Homewood, Sue Cc: Fuemmeler, Amanda J CIV (US); Leslie, Andrea J; Ralph N. Seamon; Alan Crees Subject: [External] Re: BREMC Rutherford temp. crossing modification - Watauga Attachments: Carrol Borrow Site - County Approval Letter.pdf, Rutherwood Substation - Temp Stream Crossing Detail - Rev 4-26-19.pdf, Carrol Borrow Site - County Approval Letter.pdf External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to� report.spam@nc.gov Hi, Sue, I hope this finds you well. Please see responses to your inquiries below. • 1 don't see a map or plan sheet that clearly shows where the temporary crossing is to be located. I see on the plan sheets that there's a hall road called out and a bridge stream crossing, is that where it is now proposed to be culvert crossing? If so, has a modification to the erosion control plan been secured (or applied for)? The proposed temporary stream crossing is to replace the temporary bridge shown on drawing C-13 Erosion & Sedimentation Control Plan — Phase 3. We are seeking a determination on permitting the disturbance to the stream and wetlands before filing a modification to the erosion control plan. You provide a justification for the impacts but it doesn't include why a temporary bridge is not a practical option. The contractor is concerned that it will be difficult to keep the temporary bridge in place when scraper/pans loaded with 100,000 pounds of fill dirt descend down the steep slope from the borrow site and hit the edge of the bridge • It is not clear from your plans that the culvert installation will be installed "in the dry'. Can you please provide documentation of pump around, increase the temporary impact length as necessary and provide a pump around specification. We are seeking a determination on the permitting requirements for the temporary disturbance of the stream and wetlands. If approved we will prepare plans to pump around the temporary stream crossing so it can be installed "in the dry'. Please note that the culvert length has been increased to 28' • The plan sheet specifies, "see stream restoration detail" for culvert removal but I couldn't find a stream restoration detail. The detail is added to the attached plan. It is attached to this email as a PDF. • Our standard requirement in the General Certification is for pipes to be buried for aquatic passage. If you want to request an exception please state that and provide a justification for the request. The plans show the temporary pipes partially buried in the stream bed in Cross Section A -A. The depth now complies with the standard. • Has the borrow site been delineated for streams/wetlands? Can you please provide a map that shows the limits of the borrow site. Streams and wetlands were not identified on the neighboring site. Excavation of the site was started years ago by the land owner. The current excavation is permitted as an extension of that project. Additionally, the project is funded by the Cooperative Finance Corporation. Attached find an approved sedimentation and erosion plan for the site (showing that it is a different project). Please let me know if you have further questions or concerns. If you have a moment to chat tomorrow afternoon, I have time at from 10:30 AM -3 PM. Best regards, Carson Dellinger (828)450-0161 On Fri, Apr 12, 2019, 5:4Homewood, Sue <sue.homewood@ncdenr.gov wrote: Hi Carson, I have some questions about this project: • I don't see a map or plan sheet that clearly shows where the temporary crossing is to be located. I see on the plan sheets that there's a hall road called out and a bridge stream crossing, is that where it is now proposed to be culvert crossing? If so, has a modification to the erosion control plan been secured (or applied for)? • You provide a justification for the impacts but it doesn't include why a temporary bridge is not a practical option. • It is not clear from your plans that the culvert installation will be installed "in the dry'. Can you please provide documentation of pump around, increase the temporary impact length as necessary and provide a pump around specification. • The plan sheet specifies, "see stream restoration detail" for culvert removal but I couldn't find a stream restoration detail. • Our standard requirement in the General Certification is for pipes to be buried for aquatic passage. If you want to request an exception please state that and provide a justification for the request. • Has the borrow site been delineated for streams/wetlands? Can you please provide a map that shows the limits of the borrow site. Thanks, Sue Homewood Division of Water Resources, Winston Salem Regional Office Department of Environmental Quality Blue Ridge Energy's Rutherwood Substation, Temporary Culverted Stream Crossing Table 1. Planting guide based on 30 linear feet of 25 -feet wide disturbed stream buffer along both banks of an unnamed tributary stream in Watauga County, NC. The stream is located on a site being developed as Blue Ridge Energy's Rutherwood Electric Substation. Species Common Name Specific Conditions Erosion control species seed, to be applied as directed by supplier Carex stricta Dactylis glomerata Pennisetum glaucum warm season planting Agrostis alba warm season planting Hordeum jubatum cool season planting Pennisetum glaucum warm season planting Phalaris arundinacea cool season planting Secale cereale cool season planting Agrostis alba warm season planting Overstory tree species (8 plants) Trees are to be planted -10 feet apart Acer saccharum Betula alleghaniensis Carya glabra Understory tree species (16 plants) Trees are to be planted -10 feet apart Carpinus caroliniana Hamamelis virginiana Salix nigra Shrubs (42 plants) Based on a planting guide of 1200 stems/acre Calycan thus floridus Corylus americana Kalmia latifolia Leucothoe fontanesiana Rhododendron maximum Rhododendron periclymenoides Herbaceous species seed, to be applied as directed by supplier Andropogon virginicus Broomsedge Panicum clandestinum Deertongue Schizachyrium scoparium Little Bluestem * Species selection based on Schafale and Weakly's description of Montane Alluvial Forest (Classification of the Natural Communities of North Carolina, 1990) and NC Division of Water Quality's Guidelines for Riparian Buffer Restoration (NCDENR, 2001). Planting guide created by Environmental Resources of the Carolinas, Inc. April 2019. Stream Crossing Detail 126 Poplar Grove Connector • Boone, North Carolina 28607 March 27, 2019 Carroll &Carroll PO Box 1549 Boone, NC 28607 Dear Sirs: Department of Planning & Inspections Phone (828) 265-8043 TTY 1-800-735-2962 Voice 1-800-735-8262 or 711 FAX (828) 265-8080 This office has reviewed the subject sedimentation and erosion control plan. We find the pIan to be acceptable with following conditions and hereby issue this letter of approval. This plan approval shall expire three (3) years following the date of approval, if no land - disturbing activity has been undertaken, as is required by Title 15A NCAC 413.0029. Be advised that Title 15 NCAC 4B.0017(a) requires that a copy of the approved erosion control plan be on file at the job site. Also, you should consider this letter to give the Notice requi Nred by GS 113A -61(d) of our right of periodic inspection to insure compliance with the approved plan. North Carolina's Sedimentation Pollution Control Program is performance oriented, requiring protection of the natural resources and adjoining properties. If following commencement of this project it is determined that the plan is inadequate to meet the requirements of the Sedimentation and Pollution Control Act of 1973 (North Carolina General Statute 113A-51 through 66), this office may require revisions to the plan and its implementation of the revisions to insure compliance with the Act. Acceptance and approval of this plan is conditioned upon your compliance with Federal State water quality laws, regulations, and rules. In addition, local city or county ordinances or rules may also apply to this land - disturbing activity. This approval does not supersede any other permit or approval. Please note that this approval is based in part on the accuracy of the information provided in the Financial Responsibility Form which you have provided. You are requested to file an amended form if there is any change in the information included on the form. In addition, it would be helpful if you notify this office of the proposed starting date for this project. Please notify us when you plan to have a preconstruction conference, and we will plan to attend. Please be aware that if more than one acre is to be disturbed by this project, you will be covered by the enclosed general storm water permit NCGO1000 (Construction Activities). Your cooperation is appreciated and we look forward to working with you on this project. Sincerely, Chris Grubb Planner/Property Development Coordinator PROJECT NAME: Blue Ridge Energy Borrow Site LOCATION: US Hwy 421 S SUBMITTED BY: Municipal Engineering Services Co DATE RECEIVED: 3-25-19