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HomeMy WebLinkAbout20130957 Ver 1_Other Agency Comments_20131101Strickland, Bev From: Kulz, Eric Sent: Friday, November 01, 2013 8:38 AM To: Strickland, Bev Subject: FW: Approval Letter: NCEEP Mitigation Plan- Tributaries of Wicker Branch / Union County / SAW 2013 -01680 / EEP# 95022 (UNCLASSIFIED) Attachments: Approval Package Tributaries to Wicker Branch-SAW 2013- 01680.pdf 13 -0957 Eric W. Kulz Environmental Senior Specialist 401 and Buffer Permitting Unit NCDENR - Division of Water Resources - 1650 MSC Raleigh, NC 27699 -1650 Phone: (919) 807 -6476 Water Quality Permitting Section 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, November 01, 2013 8:36 AM To: Baumgartner, Tim Cc: Karoly, Cyndi; Kulz, Eric; Jones, Scott SAW; Marella Buncick ( Marella Buncick(@fws.gov); McLendon, Scott C SAW; Cox, David R.; Wilson, Travis W.; Pearce, Guy; Sollod, Steve; Elliott, William A SAW; Fuemmeler, Amanda J SAW; Krebs, Rob; bowers.todd(@epa.gov; Cahill, Julie; Matthews, Kathryn; Emily Jernigan(@fws.gov; Mcdonald, Mike; Wicker, Henry M JR SAW; Kichefski, Steven L SAW; Tugwell, Todd SAW; Crumbley, Tyler SAW Subject: Approval Letter: NCEEP Mitigation Plan- Tributaries of Wicker Branch / Union County / SAW 2013 -01680 / EEP# 95022 (UNCLASSIFIED) Classification: UNCLASSIFIED Caveats: NONE Mr. Baumgartner, Attached is the approval letter for the Tributaries to Wicker Branch Restoration project, along with all the comments that were generated during the IRT's review of the project on the Mitigation Plan Review Portal. *Please note that this approves the Draft mitigation plan, but also identifies concerns with the plan that should be addressed in the Final mitigation plan. When the permit application is submitted for Nationwide Permit #27 authorization, a copy of this letter should be included along with a copy of the Final Mitigation Plan. Also, please ensure that the Final mitigation plan is posted to NCEEP's documents portal so that all members of the IRT have access to the Final plan. Please let me know if you have any questions about the process or the attached letter. Tyler Crumbley Regulatory Division 1 Wilmington District U.S. Army Corps of Engineers 11405 Falls of Neuse Road Wake Forest, NC 27587 (919) 846 -2564 Classification: UNCLASSIFIED Caveats: NONE DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS 69 DARLINGTON AVENUE WILMINGTON, NORTH CAROLINA 28403 -1343 REPLY TO ATTENTIONOF: I November, 2013 Regulatory Division Re: NCIRT Review and USACE Approval of the Tributaries to Wicker Branch Draft Mitigation Plan; SAW 2013 - 01680; EEP 495022 Mr. Tim Baumgartner North Carolina Ecosystem Enhancement Program 1652 Mail Service Center Raleigh, NC 27699 -1652 Dear Mr. Baumgartner: The purpose of this letter is to provide the North Carolina Ecosystem Enhancement Program (NCEEP) with all comments generated by the North Carolina Interagency Review Team (NCIRT) during the 30 -day comment period for the Tributaries to Wicker Branch Draft Mitigation Plan, which closed on 5 October, 2013. These comments are attached for your review. Based on our review of these comments, we have determined that no major concerns have been identified with the Draft Mitigation Plan. However, the minor issues with the Draft as discussed in the attached comment memo must be addressed in the Final Mitigation Plan. The Final Mitigation Plan is to be submitted with the Preconstruction Notification (PCN) Application for Nationwide permit approval of the project along with a copy of this letter and a summation of the addressed comments. If it is determined that the project does not require a Department of the Army permit, you must still provide a copy of the Final Mitigation Plan, along with a copy of this letter, to the appropriate USACE field office at least 30 days in advance of beginning construction of the project. Please note that this approval does not preclude the inclusion of permit conditions in the permit authorization for the project, particularly if issues mentioned above are not satisfactorily addressed. Additionally, this letter provides initial approval for the Mitigation Plan, but this does not guarantee that the project will generate the requested amount of mitigation credit. As you are aware, unforeseen issues may arise during construction or monitoring of the project that may require maintenance or reconstruction that may lead to reduced credit. Thank you for your prompt attention to this matter, and if you have any questions regarding this letter, the mitigation plan review process, or the requirements of the Mitigation Rule, please call me at 919- 846 -2564. Sincerely, Digitally signed by CRUMBLEY.TYLER.AUTR , °_ Y.1007509975 Date: 2013.1 1.01 07:58:35 - 04'00' Tyler Crumbley Regulatory Specialist Enclosures Electronic Copies Furnished: NCIRT Distribution List CESAW -RG /Wicker CESAW- RG- A /Kichefski Jeff Jurek, NCEEP Paul Wiesner, NCEEP REPLY TO ATTENTION OF: CESAW- RG /Crumbley DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS 69 DARLINGTON AVENUE WILMINGTON, NORTH CAROLINA 28403 -1343 MEMORANDUM FOR RECORD 8 October, 2013 SUBJECT: Tributaries to Wicker Branch- NCIRT Comments During 30 -day Mitigation Plan Review PURPOSE: The comments 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: Tributaries of Wicker Branch Restoration Project, Union County, NC USACE AID #: SAW- 2013 -01680 NCEEP #: 95022 30 -Day Comment Deadline: 5 October, 2013 1. Eric Kulz, NCDWQ, 1 October, 2013: • The project proposes to use level spreaders constructed with a wooden lip to intercept ditch flow into the easement. Level spreaders require periodic maintenance in order to maintain diffuse flow. Typically, such ditch flow is routed to floodplain pool wetlands as noted on other projects reviewed recently. Please discuss why floodplain pool wetlands are not being proposed. *Response --- Julie Cahill, NCEEP, 3 October, 2013: • In response to Eric Kulz comment on 10/1/2013 - The use of earthen berm /level spreaders to create diffuse flow from the ditches was a suggestion made by the USACE during a site walk held with and EEP in August of 2011. On these tributaries the floodplains are, for the most part, narrow and thus floodplain pool wetlands were not considered due to lack of adequate space. Creation of the floodplain pool wetlands would likely require some excavation into the valley slopes adjacent to the stream channel, particularly on Tributary 3. 2. T. Crumbley and T. Tupwell, USACE, 4 October, 2013: • Pg. 13, Table 1. Summary of Proposed Mitigation Credits: If Enhancement level II work is proposed for reach 113, please change the Mitigation Type for this reach from P to Ell in the table, amend the footnote #1, and also ensure the proper monitoring and credit release schedules are adhered to as discussed below. • Pg. 44, Tributary 2: As stated in the Draft mitigation plan, the proposal to perform restoration activities on Trib. 2, was discussed in the field in August of 2011 and subsequently determined to be unsuitable for credit generation. Therefore, the proposal to utilize Trib. 2 to offset credit losses from the failure of other restoration reaches should also be dropped. The proposal for acquisition of the conservation easement surrounding this feature was to provide habitat connectivity, reduce sediment and nutrient inputs, and provide uplift to the restored sections of Trib. 1A and the project as a whole, and not to generate credits on Trib. 2. In general, any work proposed in a mitigation plan that is proposed to generate mitigation credit must be justified in the mitigation plan. Project closeout is not the appropriate time to propose that work conducted on a site be awarded mitigation credit as this does not allow for appropriate comment by the IRT during plan review or monitoring of the project during the prescribed monitoring period. • Sections 9 (Performance Standards) and 10 (Monitoring Requirements): These sections should be revised to meet the requirements of the guidance that was in place at the time project was instituted, particularly the performance standards for hydrological success of the streams. As written currently, the reaches "should show no radical change" during the monitoring period. These standards should contain the dimensionless ratio thresholds provided in the document. • Sheet C -3, Tributary 3: The reach of stream between the two existing wetlands is proposed for enhancement level I, and the plan proposes the excavation of several pools in the bottom of the stream to "promote enhancement of habitat ". This reach was noted during the field review as a reach that did not need modification due to the fact that it is already relatively stable and not incised. The proposed pools would occur on a straight reach of channel, and there is concern that these would not be the normal locations for pools to occur. There is also concern that these pools will fill in with sediment if constructed as proposed in the plan. Based on the supporting information, this level of intervention does not seem to be supported, nor does the proposed enhancement level I ratio. Please provide justification as to why this approach is needed as opposed to simply replanting at an enhancement level 11 ratio. Digitally signed by CRUMBLEY.TYLER.AUTRY.100 L J L —wv 7 7509975 Date: 2013.11.01 07:59:03 - 04'00' Tyler Crumbley Regulatory Specialist, Regulatory Division