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HomeMy WebLinkAbout20130817 Ver 1_USACE Correspondence_20130726Strickland, Bev From: Kulz, Eric Sent: Friday, July 26, 2013 10:11 AM To: Strickland, Bev Subject: FW: Intent to Approve with Comments / NCEEP Mitigation Plan -Muddy Run II / Duplin County / (SAW- 2012 - 01387) (UNCLASSIFIED) Attachments: Muddy Run II Mitigation Plan Review Memo.pdf 13 -0653 Eric W. Kulz Environmental Senior Specialist N.C. Division of Water Quality Wetlands, Buffers, Stormwater - 1650 MSC Raleigh, NC 27699 -1650 Phone: (919) 807 -6476 Compliance & Permitting Unit E -mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties - - - -- Original Message---- - From: Crumbley, Tyler SAW [ mailto: Tyler.Crumbley(@usace.army.mil] Sent: Friday, July 26, 2013 9:58 AM To: bowers.todd(@epa.gov; Karoly, Cyndi; Kulz, Eric; Jones, Scott SAW; Marella Buncick ( Marella Buncick(@fws.gov); McLendon, Scott C SAW; Cox, David R.; Baumgartner, Tim; Pearce, Guy; Ellis, Eric; Sollod, Steve; Gibby, Jean B SAW; Wilson, Travis W.; Emily Jernigan(@fws.gov; Kathryn Matthews(@fws.gov; Montgomery, Lori; Wicker, Henry M JR SAW; Miguez, Kristin; Bailey, David E SAW; Sugg, Mickey T SAW; Shaver, Brad E SAW; Beter, Dale E SAW; Gregson, Jim Cc: Crumbley, Tyler SAW; Tugwell, Todd SAW Subject: Intent to Approve with Comments / NCEEP Mitigation Plan -Muddy Run II / Duplin County / (SAW- 2012 - 01387) (UNCLASSIFIED) Classification: UNCLASSIFIED Caveats: NONE All, The 30 -day comment review period for the Muddy Run II Stream and Wetland Restoration project (SAW 2012- 01387)(EEP# 95354), closed on 24 July, 2013. All comments that were posted on the Mitigation Plan Review Portal during the review process are attached for your records. Additionally, comments can be reviewed on the Mitigation Plan Review Portal. We have evaluated the comments generated during the review period, and determined that the concerns raised during the review are generally minor and can be addressed in the final mitigation plan. Accordingly, it is our intent to approve this Mitigation Plan unless a member of the NCIRT initiates the Dispute Resolution Process, described in the Final Mitigation Rule (33 CFR Section 332.8(e)). Please note that initiation of this process requires that a senior official of the agency objecting to the approval of the mitigation plan (instrument amendment) notify the District Engineer by letter within 15 days of this email (by COB on 10 August, 2013). Please notify me if you intend to initiate the Dispute Resolution Process. 1 Provided that we do not get any objections, we will provide an approval letter to NCEEP at the conclusion of the 15 -day Dispute Resolution window. This approval will also transmit all comments generated during the review process to NCEEP, and indicate what comments must be addressed in the Final Mitigation Plan. All NCIRT members will receive a copy of this letter and all comments for your records. Thanks for your participation, Tyler Crumbley Regulatory Division Wilmington District U.S. Army Corps of Engineers 11405 Falls of Neuse Road Wake Forest, NC 27587 (919) 846 -2564 Classification: UNCLASSIFIED Caveats: NONE N REPLY TO ATTENTION OF: DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS 69 DARLINGTON AVENUE WILMINGTON, NORTH CAROLINA 28403 -1343 CESAW -RG /Crumbley 26 July, 2013 MEMORANDUM FOR RECORD SUBJECT: Muddy Run II- NCIRT Comments During 30 -day Mitigation Plan Review Purpose: The comments and responses listed below were posted to the NCEEP Mitigation Plan Review Portal during the 30 -day comment period in accordance with Section 332.8(g) of the 2008 Mitigation Rule. NCEEP Project Name: Muddy Run II Stream and Wetland Restoration Site, Duplin, NC USACE AID #: SAW- 2012 -01387 NCEEP #: 95354 30 -Day Comment Deadline: 24 July, 2013 1. Eric Kulz; NCDWQ, 22 July, 2013: • The plans for the project show a number of ditches that enter the conservation easement. According to the plans, flow from these ditches will be converted to diffuse flow through the use of earthen level spreaders. The plans show for live stakes to be installed on the level spreaders. Earthen level spreaders have been show repeatedly to fail, even with maintenance. The DWQ BMP Manual has discontinued including earthen level spreaders as approved stormwater structures. In addition, the proposal to install live stakes will result in concentrated flow as water will flow around the stems of the trees, likely increasing the erosion of the downstream face of the level spreader. Can the ditches instead be directed into wetland floodplain pools as on other EEP projects? 2. T. Crumbley; USACE, 24 July, 2013: • As discussed during the field visit on 5 September, 2012, please ensure that all filled ditches be plugged and compacted to prevent scour and settling. • Also per the field discussion on 5 Sep 12, there is a concern by members of the IRT of possible tree mortality on Reaches 1, 2, and 3 due to the plugging of the ditches and the additional water within the reaches and adjoining forested lands. • In general, the USACE does not support relocation of streams into areas that were not historically stream channels and is concerned over the amount of grading and excavation in the Goldsboro soil on reaches 3a and 3b across the upland ridge to the west. The proposed channel must maintain sufficient flow through this area to remain jurisdictional and become a higher functioning system. The work proposed shall in no way reflect a guarantee of credit generation if the performance standards and success criteria are not met throughout the monitoring period. Additionally, effects from the dewatering of the current features must be considered in the final mitigation plan and the subsequent application. • Pg. 54, 7.2.1 provides a reference to proposed "macro- topography" features. Please ensure that these features end up vegetated and do not result in ponded areas with open water dominating. • Reach 3c currently flows through or adjacent to, existing jurisdictional wetlands. Please provide a discussion on the impacts to and protection measures for existing wetlands (high visibility fencing, avoidance). Impacts to existing wetlands need to be accounted for in the final mit plan and ensuing NWP application, including explanations on how the impacts /losses will be replaced.