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HomeMy WebLinkAbout20200987 Ver 1_USACE More Info Requested_20200914DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS 151 PATTON AVENUE ROOM 208 ASHEVILLE, NORTH CAROLINA 28801-5006 September 14, 2020 Action ID: SAW-2015-007888 Anchor QEA of North Carolina, PLLC Attn.: Robert Cork 231 Haywood Street Asheville, NC 28801 Subject: Corps Comments and Request for Additional Information — Lake Adger Dredging Proj ect Dear Mr. Cork: Reference is made to your June 16, 2020, Department of the Army permit application submitted on behalf of North Carolina Wildlife Resources Commission for the dredging of the recreational navigation channel between the Lake Adger public boat access area and the lake's main channel adjacent to the Lake Adger marina in Mill Spring, Polk County, North Carolina. Based on our review of the application, supporting documents, and comments submitted by supporting agencies and the public, the Corps is requesting additional information and providing comments as follows: 1) Submit an alternative analysis. Under the Section 404(b)(1), the alternative analysis requires the applicant to demonstrate there are no practicable alternatives to the proposed discharge that would have a less adverse effect on the aquatic environment. Noncompliance with this requirement is sufficient basis for the Corps to deny the project permit. Also, the unavailability of practicable alternatives does not necessarily result in issuance of a permit. Compensatory mitigation cannot be used to satisfy the alternative analysis. The applicant must demonstrate to the Corps that the proposed project is the least environmental damaging practicable alternative (LEDPA) to achieve the project's purpose. The 404(b)(1) guidelines requires selecting the LEDPA, provided it does not result in greater adverse environmental consequences. No discharge of dredge or fill material shall be permitted if there is a practicable alternative to the proposed discharge which would have less adverse impacts on the aquatic ecosystem, so long as the alternative does not have other significant adverse environmental consequences. Alternatives must be practicable, feasible, and accomplish the project's purpose and need. An alternative is practicable if it is available and capable of being done taking into consideration cost, existing technology, and logistics in light of overall project purpose. Alternatives not involving discharges into special aquatic sites are presumed available and have less adverse impact on aquatic ecosystem, unless clearly demonstrated otherwise. Special aquatic sites are sanctuaries and refuges; wetlands; mud flats; vegetated shallows; coral reefs; and riffle and pool complexes. The analysis must include the no action alternative, the proposed project, and a sufficient number of alternatives to demonstrate the applicant has considered alternatives to the proposed project which may impact more or less aquatic resources. The analysis should clearly state each alternative and document the rational and findings of each alternative. Each alternative should state the extent of impacts to aquatic resources, effects to federally protected species and historic properties, estimated cost, and summarize the construction methodology and logistics. Based on the submitted information for the proposed project, the Lake Adger dredging project is considered water dependent by the Corps. The activity does require access or proximity to or sitting within special aquatic sites (wetlands) which are within the Corps' project Area. Therefore, you will not need to look at off -cite alternatives in your analysis. 2) Provide final design and plans for the dredging and spoils disposal activities. The plans need to include a vegetation monitor plan for the new or enhanced wetlands of the spoils disposal areas. The plans should include the estimate volume of dredged material for the initial dredging episode and the expected volumes for future maintenance dredging episodes. 3) Provide an evaluation and discussion of the existing conditions of the aquatic resources proposed to be impacted and how these resources will change based on the proposed project. 4) The project is located within the FEMA designated 100-year floodplain. The project must comply with applicable FEMA-approved state and local floodplain management requirements. Provide a copy of the approved FEMA permit or other documentation that indicate the project meets these requirements. The Corps is considering the permit expiration to be 25 years after issuance, with the initial dredging episode to be conducted within 36 months after issuance and future maintenance dredging to be conducted as needed. 5) Provide a schedule for the dredging and disposal area activities for the initial episode of dredging and an estimate of how often future dredging activities will be conducted. Please submit the above requested information by December 31, 2020. Once the Corps receives the information, a meeting with NCWRC, NCDEQ-DWR, and the Corps may be appropriate in order to review and discuss the information submitted. In order to aid in NCDEQ- DWR's 401 permit process for this project, please copy Sue Homewood with NCDEQ-DWR on your document to be submitted to the Corps. If you have any questions please contact me. Sincerely, I_ David Brown, PG Regulatory Specialist/Geologist Asheville Regulatory Field Office Copy (by email): NCDEQ-DWR - Sue Homewood, sue.homewood@ncdenr.gov NCWRC - Andrea Leslie, andrea.leslie(ancwildlife.org NCWRC - Jeff Ferguson, jef£ferguson(ancwildlife.org