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HomeMy WebLinkAbout20170765 Ver 1_WRC Comments_20170717 North Carolina Wildlife Resources Commission Gordon Myers, Executive Director MEMORANDUM TO: Terron Edwards Froehling & Robertson, Inc. FROM: Olivia Munzer Western Piedmont Coordinator Habitat Conservation DATE: 17 July 2017 SUBJECT: Pre-Construction Notification for the Commerce Station Substation; Mecklenburg County; DEQ Project No. 20170765. Biologists with the North Carolina Wildlife Resources Commission (NCWRC) have reviewed the subject document. Comments are provided in accordance with provisions of the Clean Water Act of 1977 (as amended), Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667e), 16 U.S.C. 661-667d), and North Carolina General Statutes (G.S. 113-131 et seq.). Froehling & Robertson, Inc., on behalf of the Town of Huntersville and Electricities, has submitted a Pre- Construction Notification (PCN) application for the Commerce Station Substation located at 12240 Old Statesville Road in Huntersville, Mecklenburg County, North Carolina. The project involves the construction of a 10-foot wide gravel access roadway to provide vehicular access to a new Duke Power electrical substation. The project would be installed primarily along road and railroad easements. The proposed project would permanently impact a total of 0.005 acres of wetland. A timber mat will be used to cross above the ordinary high-water mark of the unnamed tributary to Cane Creek. We have records for the federally and state endangered Schweinitz’s sunflower (Helianthus schweinitzii) occur near the site. There are no known records for federal or state protected species within or adjacent to the site. The lack of records from the site does not imply or confirm the absence of federal or state-listed species or state Species of Greatest Conservation Need listed in the 2015 State Wildlife Action Plan (http://www.ncwildlife.org/plan). An on-site survey is the only definitive means to determine if the proposed project would impact threatened and endangered species. We also recommend contacting the U.S. Fish and Wildlife Service at (828) 258-3939 to ensure potential issues related to Schweinitz’s sunflower are addressed. We offer the following recommendations to further minimize impacts to aquatic and terrestrial wildlife resources. 1.Maintain a minimum 100-foot undisturbed, native, forested buffer along perennial streams, and a minimum 50-foot buffer along intermittent streams and wetlands. Maintaining undisturbed, forested buffers along these areas will minimize impacts to aquatic and terrestrial wildlife Mailing Address: Habitat Conservation • 1721 Mail Service Center • Raleigh, NC 27699-1721 Telephone:Fax: (919) 707-0220 • (919) 707-0028 17 July 2017 Page 2 Commerce Station Substation DEQ Permit No. 20170765 resources, water quality, and aquatic habitat both within and downstream of the project area. Also, wide riparian buffers are helpful in maintaining stability of stream banks and for treatment of pollutants associated with urban stormwater. 2.We are pleased to see a timber mat will be used to cross the stream. For the gravel access road crossing the wetland, we prefer the use of bridges for all permanent roadway crossings to eliminate the need to fill and culvert, where practicable. 3.Avoid removal of large trees at the edges of the construction corridor. Disturbed areas should be re-seeded with seed mixtures that are beneficial to wildlife. Avoid fescue-based mixtures because fescue is invasive and provides little benefit to wildlife. Native, annual small grains appropriate for the season are preferred and recommended. Where feasible, use woody debris and logs from corridor clearing to establish brush piles and downed logs adjacent to the cleared right-of-way to improve habitat for wildlife. Allowing the corridor area to re-vegetate into a brush/scrub habitat would maximize benefits to wildlife. For areas adjacent to residential areas, a native shrub/grass option may also be beneficial. 4.Sediment and erosion control measures should be implemented prior to any land clearing or biodegradable and construction and maintained throughout project construction. The use of wildlife-friendly sediment and erosion control devices is strongly recommended. Silt fencing, fiber rolls and/or other products should have loose-weave netting that is made of natural fiber materials with movable joints between the vertical and horizontal twines. Silt fencing that has been reinforced with plastic or metal mesh should be avoided as it impedes the movement of terrestrial wildlife species. These measures should be routinely inspected and properly maintained. Excessive silt and sediment loads can have numerous detrimental effects on aquatic resources including destruction of spawning habitat, suffocation of eggs, and clogging of gills of aquatic species. Thank you for the opportunity to review and comment on this project. If I can be of further assistance, please contact me at (336) 290-0056 or olivia.munzer@ncwildlife.org. ec: Alan Johnson, North Carolina Division of Water Resources Byron Hamstead, United States Fish and Wildlife Service David Schaeffer, United States Army Corps of Engineers