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HomeMy WebLinkAbout2014-1149-V9 Benton Branch Closeout AMPFrom: Merritt, Katie To: Menefee -Dunn. Barbara A Cc: Hartshorn. Blake Subject: FW: FW: [External] 2014-1149-V9 Benton Branch Closeout AMP Date: Monday, June 19, 2023 6:07:01 PM Attachments: 2014-1149-V9 Benton Branch Closeout (AMP).odf Hey Barbara, Please file email thread below into LF along with the attached PDF. Please combine the email w/ the PDF into 1 file. Metadata description is as follows: DWR#: 2014-1149v9 Doc Date: June 19, 2023 Doc Type: Remediation Plan Doc Name: DWR Approval of AMP Thank you, katie From: Merritt, Katie Sent: Monday, June 19, 2023 6:04 PM To: Merritt, Josh <Joshua.Merritt@davey.com> Cc: Raymond Holz <rholz@restorationsystems.com>; Hartshorn, Blake <blake.hartshorn@deq.nc.gov> Subject: Re:FW: [External] 2014-1149-V9 Benton Branch Closeout AMP Good Afternoon John, DWR supports the Proposed AMP for Benton Branch attached to this email. Please keep the USACE project manager in the loop on this as well. I will prepare the credit release letter as noted in the AMP. Thank you, katie From: Merritt, Josh <Joshua.Merritt(@dave)l.com> Sent: Thursday, June 8, 2023 1:50 PM To: Merritt, Katie <katie.merritt(@deq.nc.gov>; Holz, Raymond <Raymond.HolzPdavey.com> Cc: Hartshorn, Blake <blake.hartshorn @deq.nc.gov> Subject: [External] 2014-1149-V9 Benton Branch Closeout AMP CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message button located on your Outlook menu bar on the Home tab. Good Afternoon, Katie — I have attached the Adaptive Management Plan (AMP) for Benton Branch Bank Parcel (DWR #: 2014- 1149-V9) for your review. Please let me know if you have any questions. Thanks, Josh M Josh Merritt Project Manager Davey Mitigation Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. Restoration Systems, LLC 1101 Haynes St. Suite 211 Raleigh, North Carolina Ph: (919) 755-9490 Fx: (919) 755-9492 Thursday, June 8, 2023 ATTN: Katie Merritt North Carolina Division of Water Resources 1617 Mail Service Center, Raleigh, NC 27699-1617 a DAVEY company Subject: Proposal of an Adaptive Management Plan for the Benton Branch Bank Parcel Phase One Haw River WS Umbrella Banking for Riparian Buffer and Nutrient Offset Mitigation Credits (DWR# 2014-1149-V9) Ms. Merritt, After the closeout site visit of the Parcel, you provided the attached Field Notes. This proposal responds to those Field Notes, including an Adaptive Management Plan (AMP) to address stem vigor issues within an area of concern at the Site. During the closeout site visit on May 3 d, 2023, stem densities and heights appeared low along a portion of the riparian restoration area measuring 1.11 acres along Benton Branch, precisely within the vicinity of CVS Plots 18, 19, and 20 (Figure 1). Stem data within the referenced plots exceeded the success criteria by more than 10%, except for stem heights. Within the referenced CVS Plots, stem density averaged 418.2 stems per acre, and vigor scored an average of 3. However, the stem heights averaged +/- 2 feet. Multiple variables, including deer browsing, shading from established hardwood trees, and poor soil conditions, could be the lead cause for low stem heights. On May 315Y, 2023, RS took six (6) soil samples at four (4) locations within the area of concern (Figure 1). Soil samples will be used to determine if underlining soil issues influence tree mortality and height. Pending the soil sampling results, Restoration Systems (RS) will provide an amendment to the AMP, including soil sample results and soil amendment activities. Additionally, RS proposes planting seventy-five (75) three -gallon containerized shade -tolerant trees on 25 feet by 25 feet spacing. Planting larger shade -tolerant stems will prevent deer browsing and withstand shading caused by mature deciduous hardwoods. Table 1 below details the species suitable for planting under the current conditions. A minimum combination of four (4) species will be used for the supplemental planting and will be selected based on availability. Stems will be planted in/around CVS plots. Monitoring will continue within CVS Plots 18, 19, and 20 for at least one (1) year to ensure tree survival and vigor. All other CVS plots will be released from monitoring. Table 1: Supplemental planting species, shade tolerance, and wetland indicator status Common Name Scientific Name Shade Tolerance Wetland Indicator Black gum Nyssa sylvatica Sun, Part Shade, Shade FAC Ironwood Carpinus caroliniana Part Shade, Shade FAC Persimmon Diospyros virgiana Part Shade FAC Redbud Cercis canadensis Part Shade, Shade UPL Water Oak Quercus nigra Part Shade FAC Tulip Poplar Liriodendron tulipifera Sun, Part Shade, Shade FACU Note — All species listed were approved in the stream and wetland Mitigation Plan RS will photograph the completed work and submit an AMP Completion Notice to DWR and separately to the USACE in the annual stream mitigation monitoring report. If you have any questions, please do not hesitate to contact me at 910.840.3809. Restoration Systems, LLC Benton Branch (DWR# 2014-1149-V9) Closeout AMP June 8, 2023 Page 2 Sincerely, Josh Merritt Project Manager Restoration Systems, LLC Attachments: Site Closeout Field Notes Figure 1 Restoration Systems, LLC Benton Branch (DWR# 2014-114949) Closeout AMP June 8, 2023 Page 3 Site Closeout Field Notes Benton Branch (DWR No. 2014-1149 v9): - In and around Veg Plots 18-20 o There were many areas void of stems all -together. Where stems were present along the riparian restoration areas of Benton Branch, they rarely exceeded two feet and vigor was low. Two figures are attached to this email showing the areas of vegetation concern along Benton Branch. o Stems within veg plots 18, 19 and 20 were representative of the areas surrounding the plots - Katie's Comments (virtually two methods to proceed with). DWR will proceed with approving Method 1 Method 1 (Partial credit release) ■ Task 8: Full release ■ Task 9: 5% release — Credit release for Task 8 & Task 9 are contingent upon receiving the Adaptive Management Plan (AMP) for riparian restoration areas along Benton Branch. Figures showing the AMP areas are attached to this email. ■ Implement an adaptive management plan for the problematic area. • AMP (Soil sampling, plant one row of 3-gallon deer-resistant/shade-tolerant trees, possibly use tree tubes if planted height isn't sufficient to limit deer browsing, and possible soil amendments depending on soil samples). ■ Submit proof of completion (Photo documentation, species, dates, etc.) ■ Continued monitoring for at least one (1) years - released from monitoring on all veg data except for the veg plots along "Benton Branch." These include plots 18, 19 and 20. DWR will not be able to allow Method 2. Method 2 (Full credit lease once an AMP is submitted, approved, and implemented) ■ DWR indicated a full credit release could occur if the problematic veg plots (18-20) coincide with the IRT's stream mitigation veg monitoring - they do. • If this is the allowable path forward, RS will implement the AMP outlined in Method 1 and will add two random vegetation transects in the areas of vegetation plots 18, 19, and 20 to the yearly stream and wetland monitoring reports (MY6 and MY7)