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HomeMy WebLinkAbout20090126 Ver 1_Other Agency Comments_20090223-? North Carolina Wildlife Resources Commission P Gordon Myers, Executive Director MEMORANDUM TO: FROM: DATE: Cyndi B. Karoly, 401 Oversight and Permits Unit NC Division of Water Quality Ron Linville, Regional Coordinator Habitat Conservation Program February 20, 2009 ZWW 9 ? 2009 pENR-WASERL -VILE yRp,NCH 1R'ETLPNDS AND gTQRt??'SUBJECT: Review of an application for E. Bradford Remmey, Lot 14, Patrick's Purchase Subdivision, Lake Norman, DWQ No. 2009-0126, Mecklenburg County The Division of Water Quality (DWQ) is requesting concurrence from the North Carolina Wildlife Resources Commission (NCWRC) concerning issuance of a 401 Certification and a 404 Permit from the U.S. Army Corps of Engineers. The NCWRC has reviewed information provided by the applicant, and field biologists on our staff are familiar with habitat values of the project area. These comments are provided in accordance with provisions of the Clean Water Act of 1977 (33 U.S.C. 466 et. seq.) and the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d). The applicant proposes to install river rock to stabilize approximately 166 linear feet of shoreline on Lake Norman. A site visit has not been conducted by our agency. Accordingly, these comments are provided based on information provided in the submittal package. Based on the information provided and our knowledge of the project area, we will not object to the stabilization with the following modifications and/or recommendations: 1. The stabilization project should be done with minimum class I (class II preferred) riprap. This size rock improves aquatic habitat structure. We do not support the use of river rock. In channel mining of river rock causes direct impacts to aquatic species as well as it disrupts aquatic environs by causing geomorphic and biologic modifications. River rock is subject to more slippage than more irregularly shaped quarry rock. Fabric matting may be used beneath the stone to reduce erosion and turbidity. To the extent practicable, rock or stone should be placed just above the high water mark and towards the lake five (5) to six (6) feet or Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NU 27699-I /L I Telephone: (919) 733-3633 • Fax: (919) 715-7643 E. Bradford Remmey, Lake Norman 2 February 20, 2009 further to provide continuous aquatic edge habitat. To improve aquatic habitat values, a large boulder is recommended a minimum of every thirty (30) feet of stabilized shoreline. Placement of boulders should be accomplished in a manner that safety is not compromised. 2. Stabilization work should occur from the water instead of the shore to minimize buffer impacts. Any existing wooded buffers should be preserved. 3. Any Large Woody Debris (LWD) should be maintained to the maximum extent practicable to provide aquatic habitat. If relocated, the LWD must be securely anchored so that it will remain where installed. 4. Stringent erosion control measures should be installed where soil is disturbed and maintained until project completion. Temporary or permanent herbaceous vegetation should be planted on all bare soil within ten (10) days of ground disturbing activities to provide long-term erosion control. 5. Wide undisturbed shoreline buffers and natural vegetation should be maintained to the extent practicable. Disturbed banks may be revegetated with silky dogwood (Corpus amonum), silky willow (Salix sericea), tag alder (Alnus serrulata), black willow (Salix nigra), and sycamore (Platanus occidentalis) or other native plants to provide long term bank stability and stream shading. Note that silky dogwood, silky willow and black willow can be planted as live stakes collected during the dormant growing season. Cuttings should be randomly planted and done on four (4) foot centers from the waters edge to the top of the bank. Trees should be planted on ten (10) to twelve (12) foot centers. Banks in these areas should be seeded with a temporary crop of annual oats, rye or wheat. 6. The project should comply with NC Division of Water Quality and local planning authority buffer provisions. Thank you for the opportunity to review and comment on this project. If you have any questions regarding these comments, please contact me at 336-769-9453. E-copy: Mike Parker, DWQ-MRO Alan Johnson, DWQ-MRO Steve Chapin, USACOE-ARO Mark Cantrell, USFWS