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HomeMy WebLinkAbout20171158 Ver 1_MY4 IRT Site Visit - Notes_2023-06-29_Restoration Systems, LLC 1101 Haynes St. Suite 211 Raleigh, North Carolina Ph: (919) 755-9490 June 29, 2023 Fx: (919) 755-9492 1101 Haynes St., Suite 211 • Raleigh, NC 27604 • www.restorationsystems.com • Ph 919.755.9490 • Fx 919.755.9492 Paul Wiesner Western Regional Supervisor NC Department of Environmental Quality - Division of Mitigation Services paul.wiesner@deq.nc.gov Subject: Warren Wilson College, MY4 (2023) IRT Site Visit Notes DMS project # 100019 USACE Action ID No. SAW-2017-01557 / NCDWR No. 20171158 On June 23, 2023, Restoration Systems (RS) held an on-site meeting with regulatory agencies to review and discuss the Warren Wilson College (WWC) Mitigation Site (Site) and the need/possibility of a supplemental/diversity planting effort to be conducted during the dormant season of 2023/2024. Below is a list of attendees and site visit notes, accompanied by a proposed planting effort. Attendees: USACE: - Steve Kichefski - Erin Davis NC DWR: - Maria Polizzi - Mac Haupt NC WRC - Andrea Leslie NC DMS: - Paul Wiesner - Kelly Phillips Restoration Systems: - Raymond Holz - Josh Merritt - Gus Lehrman Axiom Environmental: - Grant Lewis - Phillip Perkinson Anchor QEA of NC - Robert Cork Site Visit Notes: UT 1: • No issues with stream bank stability or formation through the former pond. • IRT was supportive of the current vegetation condition but requested herbaceous vegetation monitoring plots during MY4 (2023) • RS will perform two (2) 2-meter x 5-meter herbaceous vegetation surveys as shown in the attached figure set. UT1 - Lower (Permanent Vegetation Monitoring Plot # 1): • There were no issues with vegetation in and around the permanent vegetation monitoring plot (PVMP) #1, as both planted and natural recruits are performing well. • Along the left easement edge under the existing tree canopy, just below PVMP #1, RS was suggested to conduct a random vegetation transect to determine how plant stems are doing. RS will do so this monitoring year, and upon review of the data, it may be appropriate to plant live-stake shrubs to improve species diversity. UT 8 - (Permanent Vegetation Monitoring Plot # 25): • It was agreed by all attendees that a diversity planting with 3-gallon containers was appropriate for the area. RS will pre-determine where containerized pots will go and treat the herbaceous vegetation before planting to reduce the possibility of overtopping and herbaceous competition. • RS has developed a proposed planting list (page 3), which consists of some species not approved in the Mitigation Plan but included to aid in the Site’s species diversity. Upon Agency review of the planting list, RS will secure the planting material. Lower UT 8: • The area has herbaceous coverage; however, the species diversity is noticeably different from the area around PVMP #25. The IRT requested RS perform soil samples, which RS will do. • Based on the soil samples, RS may apply fertilization and/or lime to the area during the dormant season of 2023/2024. Warren Wilson College, MY4 (2023) IRT Site Visit Notes Page 2 DMS project # 100019 USACE Action ID No. SAW-2017-01557 / NCDWR No. 20171158 • It was agreed by all attendees that a diversity planting with 3-gallon containers was appropriate for the area. RS will pre-determine where containerized pots will go and treat the herbaceous vegetation before planting to reduce the possibility of overtopping and herbaceous competition. • RS has developed a proposed planting list (page 3), which consists of some species not approved in the Mitigation Plan but included to aid in the Site’s species diversity. Upon Agency review of the planting list, RS will secure the planting material. UT 3 (Little Berea) • The IRT observed the development of riparian wetlands along UT 3, near PVMP 9, 10, and 11. • The IRT agreed that the current scrub-shrub habitat is fine in these wet areas; however, a live-stake shrub diversity planting was recommended. • RS has developed a proposed planting list (page 3), which lists proposed species for planting during the 2023/2024 dormant season. Upon Agency review of the planting list, RS will secure the planting material. • RS will also perform three (3) 2-meter x 5-meter herbaceous vegetation surveys, as shown in the attached figure set, to supplement the vegetation monitoring effort in these areas. This data will be included in the MY4 (2023) Monitoring Report and will be conducted again during the MY6 (2025) monitoring period. • Before the IRT Site visit, RS walked Upper UT 3 to evaluate the current extent of Parrot-Feather (Myriophyllum aquaticum) within the channel. Great progress has been made to control the extent of Parrot-Feather via herbicide treatments during MY1-3. RS observed and took the IRT to a small patch between UT 3 cross sections 9 and 10. Treatment of the species will continue throughout the reach as needed. However, channel shading and previous treatments have drastically reduced the extent of Parrot- Feather within the channel. UT 3 (Stokes) • UT 3, Stokes Field, was not visited by the IRT during the site visit. However, based on conversations with the IRT on Lower UT 8, RS’ 2023 observations, and the MY3 (2022) vegetation data, RS plans to complete a supplemental 3-gallon container planting effort in and around PVMP #5. • RS has developed a proposed planting list (page 3), which consists of some species not approved in the Mitigation Plan but included to aid in the Site’s species diversity. Upon Agency review of the planting list, RS will secure the planting material. • RS will also conduct a random vegetation transect around PVMP #5. Rivercane: • Areas of River cane transplant were observed by the IRT around UT6B. • The IRT had no issues with the amount of Rivercane nor its current potential to outcompete planted vegetation. • RS will add a narrative to the MY4 (2023) monitoring report (and all future monitoring reports) to discuss the Rivercane transplant effort, the current condition of the Rivercane, and lessons learned, i.e., what worked best, what we would change, etc. In addition, RS will map the extent of Rivercane on the MY4 (2023) CCPV Figure. During future monitoring years, RS will survey the Rivercane to document its growth and update each monitoring year’s CCPV accordingly. General Notes: • Beaver Activity - Beavers were trapped during the spring and early summer of 2023 at the outfall of UT8 and UT7. The IRT reviewed these areas and noted minimal damage to planted vegetation along the stream corridors. Trapping stopped in May 2023, and RS will remove the dams in June. RS will continue to monitor beaver activity. • Conservation Easement Boundary - No encroachments into the easement were observed during the site visit. RS acknowledges DMS’ current effort to provide additional easement marking on all mitigation sites. RS will complete a total easement review and marking effort during the summer of 2023 and will notify DMS once completed. This effort will be focused on additional signage along fencing and within forested areas. Painting of trees along the conservation easement will also occur within forested areas. Warren Wilson College, MY4 (2023) IRT Site Visit Notes Page 3 DMS project # 100019 USACE Action ID No. SAW-2017-01557 / NCDWR No. 20171158 A proposed 2023/2024 planting list and historical Site vegetation tables (approved Mitigation Plan and As Built) are provided on the following pages. WWC – MY4 (2023/2024) Proposed Planting List Vegetation Association Montane Alluvial Forest (3 Gallon) Live-stake Shrub Planting Total Acres 1.21 0.33 1.54 Species Wetland Indicator # planted % of total # planted % of total # planted Northern red oak (Quercus rubra) FACU 100 25.00% 100 Persimmon (Diospyros virgininia) FAC 75 18.75% 75 Tag alder (Alnus serrulata) FACU 75 18.75% 75 Water oak (Quercus nigra) FACW 50 12.50% 50 White oak (Quercus Alba) FACU 50 12.50% 50 Yellow birch (Betula alleghaniensis)** FACU 50 12.50% 50 Black Willow (Salix nigra)* OBL 75 18.75% 75 Buttonbush (Cephalanthus occidentalis)* OBL 75 18.75% 75 Elderberry (Sambucus spp.)* FACW 75 18.75% 75 Ninebark (Physocarpus opulfolius)* FAC 75 18.75% 75 Silky dogwood (Cornus amomum)* FACW 100 25.00% 100 Total: 400 100% 400 100 800 *Live stake material **Possible supply shortage. If unavailable, we will supplement this species with one from the list above or the approved Mitigation Plan planting list. WWC – Mitigation Plan Planting List Warren Wilson College, MY4 (2023) IRT Site Visit Notes Page 4 DMS project # 100019 USACE Action ID No. SAW-2017-01557 / NCDWR No. 20171158 WWC – As-Built Planting List Attachments: - CCPV figure set with MY3(2022) monitoring efforts and 2024 supplemental vegetation survey efforts and replanting areas. FIGURE Drawn by: Date: Scale: Project No.: KRJ JUN 2023 1:10,000 20-004 Title: Project: Prepared for: Buncombe County, NC WARREN WILSONCOLLEGE STREAMMITIGATION SITE 06-2023IRT SITE VISIT 2 ³ 0 2,000 4,0001,000 Feet Legend Conservation Easement Surrounding Parcels Stream Figure 2A Figure 2C Figure 2E Figure 2D U T-3 UT-3 UT-4 UT-5 UT-6 UT-8 UT-1 UT-1 Clingman'sLittleBerea Stokes BallField Forbat'sField BigBottom S-Field HogBottom Pig Pond SwimPond UT-7 Figure 2B "S "S "S #* ^_ ^_^_ ^_^_ ^_ ^_ X S - 1 0 XS - 1XS-2 X S - 1 2 X S - 7 XS - 1 1 X S - 9 XS - 6 X S - 8 X S - 5 7 8910 1112 5 2 3 4 5 6 7 8 4 3 56 7 8 FIGURE Drawn by: Date: Scale: Project No.: KRJ JUN 2023 1:2000 20-004 Title: Project: Prepared for: Buncombe County, NC WARREN WILSONCOLLEGE STREAMMITIGATION SITE 2A ³ 0 300 600150Feet Legend Conservation Easement Surrounding Parcels Stream Restoration Stream Enhancement (Level I) Stream Enhancement (Level II) Stream Generating No Credit Wetlands Cross Sections MY3 (2022) Vegetation Plots Meeting Success Criteria MY3 (2022) Vegetation Plots Not Meeting Success Criteria MY3 (2022) Temporary Vegetation Plots Meeting Success Criteria MY4 (2023) Temporary Vegetation Plots "S MY4 (2023) 2m x 5m Herbaceous Plots Groundwater Gauges Meeting Success Criteria #*Flow Gauge ^_Flow Camera ^_Photo Point Locations Walking Paths Supplemental Planting Area - 3-Gallon (1.21 ac) Supplemental Planting Area - Live Stakes (0.33 ac) UT-3 UT-4 Clingman's Clingman's Little Berea Spot treatment of Parrot Feather along UT3 to occur in 2023. 06-2023IRT SITE VISIT 10 X S - 4 X S - 3 X S - 2 X S - 1 4 5 6 4 FIGURE Drawn by: Date: Scale: Project No.: 1:1500 20-004 Title: Project: Prepared for: Buncombe County, NC WARREN WILSONCOLLEGE STREAMMITIGATION SITE 2B ³ 0 200 400100Feet Legend Conservation Easement Surrounding Parcels Stream Restoration Stream Enhancement (Level I) Stream Enhancement (Level II) Stream Generating No Credit Wetlands Cross Sections MY3 (2022) Vegetation Plots Meeting Success Criteria MY3 (2022) Vegetation Plots Not Meeting Success Criteria MY3 (2022) Temporary Vegetation Plots Not Meeting Success Criteria MY4 (2023) Temporary Vegetation Plots "S MY4 (2023) 2m x 5m Herbaceous Plots Groundwater Gauges Meeting Success Criteria Walking Paths Supplemental Planting Area - 3-Gallon (1.21 ac) Supplemental Planting Area - Live Stakes (0.33 ac) Stokes U T -3 KRJ JUN 2023 06-2023IRT SITE VISIT ^_ ^_ 3 9102 15 1314 XS-6 XS - 1 XS - 4 X S - 3 XS - 2 XS- 5 FIGURE Drawn by: Date: Scale: Project No.: 1:1200 20-004 Title: Project: Prepared for: Buncombe County, NC WARREN WILSONCOLLEGE STREAMMITIGATION SITE 2C ³ 0 200 400100Feet Legend Conservation Easement Surrounding Parcels Stream Restoration Stream Enhancement (Level I) Stream Enhancement (Level II) Stream Generating No Credit Cross Sections MY3 (2022) Vegetation Plots Meeting Success Criteria MY3 (2022) Vegetation Plots Not Meeting Success Criteria MY3 (2022) Temporary Vegetation Plots Meeting Success Criteria MY4 (2023) Temporary Vegetation Plots "S MY4 (2023) 2m x 5m Herbaceous Plots ^_Photo Point Locations Walking Paths Supplemental Planting Area - 3-Gallon (1.21 ac) Supplemental Planting Area - Live Stakes (0.33 ac) UT-5 S w a n n a n o a R i v e r Ball Field KRJ JUN 2023 06-2023IRT SITE VISIT #* #* ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_ ^_^_ ^_^_20 19 1817 16 15 1413 1211 1 9 18 22 24 25 23 16 17 19 21 20 XS-1 XS-2 XS - 3 X S - 4 XS-5 XS - 7 XS - 6 XS - 1 X S - 6 XS - 2 XS-4 XS-5 X S - 1 X S - 2 X S - 7 FIGURE Drawn by: Date: Scale: Project No.: 1:2500 20-004 Title: Project: Prepared for: Buncombe County, NC WARREN WILSONCOLLEGE STREAMMITIGATION SITE 2D ³ 0 500 1,000250Feet Legend Conservation Easement Surrounding Parcels Stream Restoration Stream Enhancement (Level I) Stream Enhancement (Level II) Stream Generating No Credit Wetlands Cross Sections MY3 (2022) Vegetation Plots Meeting Success Criteria MY3 (2022) Vegetation Plots Not Meeting Success Criteria MY3 (2022) Temporary Vegetation Plots Meeting Success Criteria MY4 (2023) Temporary Vegetation Plots "S MY4 (2023) 2m x 5m Herbaceous Plots Groundwater Gauges Meeting Success Criteria #*Flow Gauge ^_Flow Camera ^_Photo Point Locations Walking Paths Supplemental Planting Area - 3-Gallon (1.21 ac) Supplemental Planting Area - Live Stakes (0.33 ac) UT- 6 UT-7 UT-8 S w annanoaRiver Big Bottom S-Field Forbat's Field X S-5 X S -3 X S-6 XS-8 X S - 4 XS-3 KRJ JUN 2023 06-2023IRT SITE VISIT "S "S !( ^_ ^_ 1 32 2 1 XS-1 XS - 7 XS- 8 XS - 2 XS- 3 XS-4 XS - 5 X S - 6 1 FIGURE Drawn by: Date: Scale: Project No.: 1:1400 20-004 Title: Project: Prepared for: Buncombe County, NC WARREN WILSONCOLLEGE STREAMMITIGATION SITE 2E ³ 0 300 600150Feet Legend Conservation Easement Surrounding Parcels Stream Restoration Stream Enhancement (Level I) Stream Enhancement (Level II) Stream Generating No Credit Wetlands Cross Sections MY3 (2022) Vegetation Plots Meeting Success Criteria MY3 (2022) Vegetation Plots Not Meeting Success Criteria MY4 (2023) Temporary Vegetation Plots "S MY4 (2023) 2m x 5m Herbaceous Plots !(Groundwater Gauge Meeting Success Criteria ^_Photo Point Locations Walking Paths Supplemental Planting Area - 3-Gallon (1.21 ac) Supplemental Planting Area - Live Stakes (0.33 ac) UT-1 UT-1 SwannanoaRiver Pig Pond Hog Bottom Swim Pond KRJ JUN 2023 06-2023IRT SITE VISIT