Loading...
HomeMy WebLinkAbout20200998 Ver 1_SAW2020-00801 Pre-Prospectus Site Visit Meeting Minutes_20200810Strickland, Bev From: Dailey, Samantha J CIV USARMY CESAW (USA) <Samantha.J.Dailey@usace.army.mil> Sent: Monday, August 10, 2020 10:31 AM To: Catherine Manner; Kayne Van Stell Cc: Tugwell, Todd J CIV USARMY CESAW (US); Kim Browning; Haywood, Casey M CIV USARMY CESAW (USA); Davis, Erin B; Wilson, Travis W.; Bowers, Todd Subject: [External] SAW2020-00801 / WLS Yadkin 201 / Fezzik Mitigation Site / Pre -Prospectus Site Visit Meeting Minutes Attachments: Pre Prospectus IRT Site Visit -Meeting Min.docx Follow Up Flag: Follow up Flag Status: Flagged CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to report.spam@nc.gov<mailto:report.spam@nc.gov> Greetings, On August 5, 2020, members of the IRT and WLS conducted an on -site field visit. Attached are the meeting minutes provided by WLS regarding the above referenced site. WLS captured most of the discussion regarding the site; however, the USACE has a few additional comments to add and/or reiterate: 1) UT3: The biggest concern for this reach is if PI/PII restoration is appropriate. This reach has a moderate level of function as it stands, with an established buffer on either side of the channel. The reach also contains bedform and sinuosity. There is a disconnect between the channel and the floodplain; however, it is difficult to justify the PI/PII restoration approach here. Even with PI/PII restoration, a lower ratio may be more appropriate (1:5:1 or greater). There needs to be greater justification if PI/PII restoration is the approach for this reach. 2) BC-R2 wetland re-establishment: The IRT requests the hydric soil areas vs. the non-hydric soil areas be broken out into restoration and creation, respectively. Transects should be conducted in order to obtain this information and accuracy. 3) BC-R2: This reach had some floodplain connectivity, but not over the majority of the reach. Establishing floodplain connectivity in this lower system would provide hydrology to adjacent wetland areas that are currently marginal. After looking at the 13C-R1 preservation reach, which is also the reference reach, there is opportunity to improve BC-R2. As stated above in number 1, there needs to be greater justification if PI/PII restoration is the approach for this reach. 4) UT2b-R1: Preservation in this reach is not high quality, especially as proposed with only 50-foot buffers. The IRT believes that expanding the buffer and planting would allow for Ell with a higher ratio. Justification should be provided either way; preservation or Ell. 5) BC-R1: Expanding and planting the buffer on this preservation reach (perhaps Ell) could allow for a 5:1 or 7.5:1 ratio. Please let me know if you have any additional questions. Best Regards, Sam Samantha Dailey Regulatory Project Manager U.S. Army Corps of Engineers Regulatory Division 3331 Heritage Trade Drive, Suite 105 Wake Forest, NC 27587 (919) 554-4884, Ext. 22 Samantha.j.dailey@usace.army.mil 91 WATER & LAND SOLUTIONS Meeting Minutes Fezzik Mitigation Project Subject: NCIRT Draft Prospectus Site Meeting Date Prepared: August 6, 2020 Meeting Date and Time: August 5, 2020 @ 10:30 am Meeting Location: On Site (Richmond County, NC) Attendees: USACE: Todd Tugwell, Samantha Dailey (NCIRT) NCDEQ DWR: Erin Davis (NCIRT) GL, LLC: George Lankford WLS: Kayne VanStell, Daniel Ingram, Catherine Manner Recorded By: Catherine Manner These meeting minutes document notes and discussion points from the North Carolina Interagency Review Team (NCIRT) Draft Prospectus Site Meeting for the Fezzik Mitigation Project (Yadkin Basin, CU 03040201). The project site is located in Richmond County, near Ellerbe, North Carolina. The meeting began at 10:30am with a general summary of the overall project concepts. After the site overview, attendees toured the project site to review existing conditions and proposed mitigation types, restoration approaches, and design concepts. In general, the project site review notes are presented below in the order they were visited. UT3 The site visit started at the easement break on UT3. The group walked downstream. Todd questioned the 'Low' score on the NCSAM form and thought it would be 'Medium' based on the buffer condition. The group discussed the PI/PII restoration approach and how the corridor would need to be cleared and graded to complete the work. WLS explained that the goal was to save the desirable trees when possible, but pines, sweet gum, and maple would be removed and used for structure. The group then drove up to the confluence of UT3 and UT3a. Todd said it looked like the channel might already have started to form benches. Kayne expressed how relocating the stream would result in the highest functional uplift to the system. Overall discussion about how to approach degraded streams that are downcut, but likely have suitable habitat (i.e. substrate and leaf pack). This lead to a discussion about assessing the baseline condition compared to overall functional uplift that could be achieved. Discussed the downside that the same amount of credit is given to a site that is a cow pasture compared to a waterlandsolutions.com 1 7721 Six Forks Rd, Ste 1130, Raleigh, NC 27615 1 919-614-5111 91 WATER & LAND SOLUTIONS wooded site. Todd expressed that the buffer below the confluence of UT3 and UT3a was not so bad. The group split up and Daniel, Erin, George and Todd went upstream. Kayne, Catherine and Sam when downstream back towards the crossing. USACE Comments added by Sam Dailey: In addition to the WLS comments, the biggest concern for this reach is if PI/PII restoration is appropriate. Further, even with PI/PII restoration, a lower ratio may be more appropriate (1:5:1 or greater). There needs to be greater justification if PI/PII restoration is the approach for this reach. It must also be noted that the BCR1 preservation reach (reference reach) contained excellent bedform, channel dimensions, and floodplain connectivity. UT3a Daniel, Erin, Todd discussed moving the start of the reach further down because of jurisdictional concern. Daniel dropped a pin at the location they discussed (approximately 210' upstream of the confluence). Todd and Erin said WLS needed more justification for the restoration approach and asked Daniel if he was comfortable with a longer flow duration success criteria and/or benthic criteria. Daniel responded the WLS is open to more site -specific success criteria than 30-day continuous flow. BC-R2 The group then drove to the bottom part of BC-R2. The IRT liked the approach and location of where WLS is proposing the confluence of BC-R2 and UT2-R3 towards the top of the valley. Todd asked George about the hydroperiod and George responded with 9% or 10-12%. Group discussed plan on grading the bottom of the valley and how many inches would be taken off the existing soil layer. Kayne expressed that it would be no more than 12 inches to avoid creation. There was a group discussion on if the current soil was hydric, to which George said yes, it is based on redox and matrix chroma. Todd questioned how much uplift the area would receive, George stated that the soils lack wetland hydrology. The function of a soil fragipan as necessary to sustain hydrology was discussed, especially in regards to the proposed earthwork potentially disturbing or destroying portions of the fragipan. George stated that the fragipan would provide perching where present, but the proposed hydrology of this site is not dependent upon the fragipan. Hydrology from raising groundwater would be sufficient in restoring soil hydrology. Group talked about if it was restoration or creation, and Todd stated that it wasn't restoration from a crediting standpoint if over 12 inches of naturally placed or formed soil is removed. Kayne asked if we should clip out polygons for restoration vs. creation. Todd replied that had been done before. Todd also stated that he didn't like that we would have to excavate in a wetland restoration area. Erin suggested in our mitigation plan WLS shows a figure depicting grading from 0-6, 6-12, and >12 inches for the bottom of the valley. Sam stated the area was very hummocky and looked to have been historically manipulated. There was a discussion on if these wetlands would be connected to the stream channel. WLS said that the wetlands would abut the stream channel so that would not be an issue. The group walked to Well 4 and then looked at the channel in that area (UT2-R3). Todd and Sam discussed if some areas were currently jurisdictional, but concluded the absence of hydrology indicators prevented them from being jurisdictional. Todd viewed the Bells Creek as not significantly oversized and Kayne presented data that it was slightly oversized and incised. Group walked downstream some though Bells Creek (BC-R2), Sam agreed afterwards that it was incised, but that it was able to get out on the floodplain in some locations waterlandsolutions.com 1 7721 Six Forks Rd, Ste 1130, Raleigh, NC 27615 1 919-614-5111 91 WATER & LAND SOLUTIONS but wasn't ideal. Group discussed potential for floodplain connectivity. Todd thought it might score as FAR on the SQT. UT2-R2 Running short on time the group rode in the ATV along UT2-R2, WLS explained the Enhancement Level I approach was to raise channel elevation to tie into BC-R2 reach below. UT2b-RI Todd said this reach was not high -quality preservation and would not automatically get a 10:1 ratio. IRT asked if there was the ability to get a buffer wider than 50ft. Erin agreed that it was not pristine preservation, but that it still warranted some credit, also stated a wider buffer would be beneficial. Todd asked if the other preservation was the same, WLS state that the condition and morphology was very different and BC-R1 is Bells Creek. Todd/Erin stated that if WLS could expand the buffer and plant we might be able to get a higher Ell ratio, but did not think WLS should be doing anything in the channel. UT2-RI IRT appreciates the ratio and approach on this reach. Discussion on hunting risks and long term maintenance/stewardship. IRT suggest WLS include risks about surrounding land use (timber) and hunting. Group discussed what temporary hunting stands were appropriate. Conclusion was anything that you bring in and bring out with you, IRT didn't want anything left permanently in the easement that would "naturalize" over time. Todd left site at 2:30pm. The rest of the group went to UT2a. UT2a This reach had no flow, but Sam thought it was jurisdictional. Sam/Erin like where WLS started the reach at the drainage intersection above current culvert crossing. Group discussed improving habitat and bedform features, increasing step -pools, and creating more flow capacity. IRT liked the proposed no maintenance BMP to treat and attenuate higher flows. BC-R1 Group drove across the road to preservation section. Erin/Sam discussed how different this preservation was from UT2b-RI. Erin suggested getting a wider buffer and planting. A ratio of potentially 5:1 or 7.5:1 if wider buffer was obtained and supplemental planting was completed. IRT members also requested WLS attempt to remove one of the crossings, per upcoming USACE guidance. UT1 Group drove up to the road shoulder and walked over side of the hill down to UT1. Sam/Erin agreed to restoration approach. WLS discussed how the stream profile could be raised to the height of road culvert and plunge pool elevation. (warnll Nntat - Before submitting final prospectus, change all reach names to something easier to follow for permitting. waterlandsolutions.com 1 7721 Six Forks Rd, Ste 1130, Raleigh, NC 27615 1 919-614-5111 91 WATER & LAND SOLUTIONS Add wider buffers where possible, especially on preservation reaches. More vegetation descriptions and include a detailed assessment/inventory in mitigation plan to justify uplift. - IRT appreciated that there were few easement breaks given the project size and that WLS captured the headwaters of the site and included them when possible. - Try to remove the upper easement break on BC-R1 if possible. - Keep IRT updated on status of the project. Requested sites not remain inactive for more than 12 months to prevent delays. The above minutes represents Water & Land Solutions' interpretation and understanding of the meeting discussion and actions. If recipients of these minutes should find any information contained in these minutes to be in error, incomplete, please notify the author with appropriate corrections and/or additions within five (5) business days to allow adequate time for correction and redistribution. waterlandsolutions.com 1 7721 Six Forks Rd, Ste 1130, Raleigh, NC 27615 1 919-614-5111