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HomeMy WebLinkAbout20191369 Ver 1_WRC Comments_201911051�1 North Carolina Wildlife Resources Commission 0 Gordon Myers, Executive Director MEMORANDUM TO: David Shaeffer U.S. Army Corps of Engineers FROM: Olivia Munzer, Western Piedmont Coordinator Habitat Conservation Division DATE: 05 November 2019 SUBJECT: Public Notice for Gaston County Landfill Expansion, Gaston County, North Carolina. Corps Action ID #: SAW-2018-00053. Biologists with the North Carolina Wildlife Resources Commission (NCWRC) have reviewed the subject public notice. Our 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), and North Carolina General Statutes (G.S. 113-131 et seq.). Gaston County Department of Public Works proposes to permanently impact 1,881.5 linear feet of jurisdictional stream channel and 0.40 acre of jurisdictional impoundments associated with the expansion of an existing landfill located on a 424-acre tract. The purpose of the project is to provide municipal solid waste capacity to serve growth and development over at least the next 20 years. The proposed mitigation includes payment to N.C. Division of Mitigation Services. Unnamed tributaries to the South Fork Catawba River in the Catawba River basin flow through the site. There are records for the state significantly rare seagreen darter (Etheostoma thalassinum) downstream of the site. Should the permit be issued, we offer the following comments and recommendations to minimize impacts to aquatic and terrestrial wildlife resources. For any undisturbed streams remaining on the site, establish or maintain a minimum 100-foot undisturbed, native, forested buffer for perennial streams and a minimum 50-foot undisturbed, native, forested buffer for intermittent streams and wetlands. Maintaining undisturbed, forested buffers along these areas will minimize impacts to aquatic and terrestrial wildlife resources, water quality, and aquatic habitat both within and downstream of the site. In addition, wide riparian buffers are helpful in maintaining stability of stream banks and for treatment of pollutants associated with stormwater runoff. Mailing Address: Habitat Conservation • 1721 Mail Service Center • Raleigh, NC 27699-1721 Telephone: (919) 707-0220 • Fax: (919) 707-0028 Page 2 05 November 2019 Gaston County Landfill Corps Action ID#: SAW-2018-00053 2. As development in the watershed occurs, the 100-year floodplain elevation may change. Construction of future phases of the landfill should avoid construction or fill in the 100-year floodplain. Construction or fill in the floodplain increases the potential for flooding and interferes with the natural hydrologic process of the waterways. It also disrupts the continuity of migration corridors for wildlife. 3. Measures should be installed to prevent leachate from entering groundwater or surface waters. We suggest periodic monitoring for waste pollutants in South Fork Catawba River downstream of the landfill. If waste pollutants are found downstream, then measures should be implemented to identify the source and contain the pollutants. 4. Where feasible, stockpile top soils for final site reclamation. However, excavated materials should not be stockpiled where sediment will erode to surface waters. 5. Consider using native seed mixtures (e.g., native warm season grasses) that are beneficial to wildlife in the reclamation plan. Specifically, this project would be ideal for planting native, wildflower seed mixes that will create pollinator habitat within the project boundary. Avoid using Bermudagrass, redtop, tall fescue, and lespedeza, which are invasive and/or non-native and provide little benefit to wildlife. 6. Sediment and erosion control measures should be installed prior to any land clearing or construction. The use of biodegradable and 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 comment on this permit application. For questions or comments, please contact me at (919) 707-0364 or olivia.munzer(abncwildlife.org. ec: Sue Homewood, NCDWR