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Home My WebLink About20201094 Ver 1_Blair Creek_100047_MY1_2022_20230306ID#* 20201094 Version* 1 Select Reviewer: Ryan Hamilton Initial Review Completed Date 04/19/2023 Mitigation Project Submittal - 3/6/2023 Is this a Prospectus, Technical Proposal or a New Site?* Yes No Type of Mitigation Project:* Stream Wetlands Buffer Nutrient Offset (Select all that apply) Project Contact Information Contact Name: * Email Address: Matthew Reid matthew.reid@ncdenr.gov Project Information ID#: * 20201094 Version:* 1 Existing ID# Existing Version Project Type: DMS Mitigation Bank Project Name: Blair Creek Mitigation Project County: Clay Document Information Mitigation Document Type:* Mitigation Monitoring Report File Upload: Blair Creek_ 100047_MY1_2022.pdf 80.73MB Please upload only one PDF of the complete file that needs to be submitted... Signature Print Name:* Matthew Reid Signature: Blair Creek Stream Mitigation Project Year 1 (2022) Monitoring Report FINAL Clay County, North Carolina Hiwassee River Basin: 06020002 DMS Project ID No. 100047 DMS RFP #16-007278 (Issued: 6/21/17) DEQ Contract No. 7415 USACE Action ID No. SAW-2018-00449 DWR# 2020-1094 Year 1 Collection Period: September - November 2022 Submitted to/Prepared for: NC Department of Environmental Quality Division of Mitigation Services (DMS) 1652 Mail Service Center Raleigh, North Carolina 27699-1652 Submission Date: February 2023 This document was printed using 30% recycled paper. 797 Haywood Rd. Suite 201| Asheville, NC 28806 Office: 828-412-6101| Mobile: 828-380-0118 MBAKERINTL.COM February 28, 2023 Matt Reid, PM NCDEQ, Division of Mitigation Services Asheville Regional Office 2090 U.S. 70 Highway Swannanoa, NC 28778-8211 Subject: Response to DMS Comments (January 19, 2023) for DRAFT Monitoring Year 1 Report. Blair Creek Stream Mitigation Project, Clay County Hiawassee River Basin: 06020002 DMS Project #100047 DEQ Contract #7415 Dear Mr. Reid, Please find below our responses to the NC Division of Mitigation Services (DMS) review comments dated January 19, 2023, in reference to the Blair Creek Stream Mitigation Project’s DRAFT Monitoring Year 1 Report. We have revised the Draft document in response to review comments as outlined below. · In an effort to identify and resolve property issues early during the monitoring period, please verify that the conservation easement boundary has been walked, marking and signage is up to spec, fencing is intact, and no encroachments have been identified. RESPONSE: The easement boundary has been walked and signage is posted up to specifications. 4 encroachment areas were identified where the property owner mowed a narrow strip within the easement boundary when “bush-hogging” their field. Additional posts and signage were added along with 10’ flagged PVC to make the Conservation Easement boundary highly visible during farm activities. These areas have been measured and added to Table 6 – Vegetation Conditions Assessment and are depicted on the CCPV in Appendix B. These areas will be monitored and reported on in Monitoring Year 2. · Report indicates a supplemental planting will occur in the vicinity of vegetation plot 2. Please include supplemental planting information in the MY3 report regarding this effort. Include number, area, species, type (bare root, container, etc.) and include a polygon on the CCPV. If species are selected that are not from the approved mitigation planting list, the IRT will need to be notified in advance. RESPONSE: The requested information will be included in the MY2 report and CCPV. All planted species will be selected based on the approved mitigation planting list. · CCPV: Please update color codes for vegetation plots, wetland gauges, and flow gauges for meeting/not meeting criteria. RESPONSE: Vegetation plots, wetland gauges, and flow gauges have been color coded for meeting/not meeting criteria. The color of FL-1 or Flow Gauge 1 has not changed as it met criteria and is the only flow gauge on site. · It was noted in MY0 that GW-1 was installed in a non-representative area for the surrounding wetland reestablishment area. Baker committed to moving the gauge approximately 15-20’ farther away from the channel. The gauge location shown on the CCPV appears to be the original location. Please verify that the gauge was moved and update the CCPV accordingly. RESPONSE: GW-1 was not moved; however, an additional well (GW11) was installed in a more representative location during MY1. The installation did not take place until late in the 2022 growing season, therefore data was not reported in MY1. All future monitoring years will include GW1 and GW11 data. The location of GW11 is shown on the CCPV. The photo below shows GW11 and GW1 is visible in the background. · Two structures were identified in MY0 with scour behind the vane arms; Reach 1 log cross vane, sta: 24+75, and Reach 2 log J-hook vane, sta: 23+75. Baker indicated these structures were going to be repaired in MY1. The structure on Reach 2 was identified as Stream Problem Area #1; however, the structure on Reach 1 was not mentioned. Was the structure on Reach 1 repaired? Please update accordingly. GW11 GW1 RESPONSE: The log vane structure on Reach 1 remains intact. The right bank scour shown in the MY0 Comment Letter has filled in with sediment and dense vegetation. At the time of data collection during MY1 the structure was functioning and not in need of repair. We will keep a close watch on this structure during MY2 and make repairs if needed. The grade control rock and log J-hook, SPA #1, on Reach 2 is currently scheduled to be repaired in February 2023 by a contractor. We will provide pictures of this repair once completed and a discussion will be included in the MY2 report. Some bank scour was also identified on a grade control rock and log j-hook on Reach 2. This area is identified as SPA #2 on the CCPV and will be repaired at the same time as SPA #1. · Table 5 and 6: Please include assessment dates at the top of each table. RESPONSE: Assessment dates have been included as requested. · Table 5 Reach 1: A 15’ aggradation segment and 25’ scoured/eroding segment is called out for this reach. These locations should be identified on the CCPV. Please update and include .shp files with digital submission as well. RESPONSE: The 15’ aggradation segment has been added to the CCPV as requested. The 25’ scour/eroding segment is located on Reach 2 and is represented on the CCPV as SPA-1. These shapefiles have been included with the digital submission as requested. · Photo-points: In future reports, please include photos of stream problem areas and vegetation problem areas. RESPONSE: In future reports, photos of any stream or vegetation problem areas will be included. · Table 7: Veg Plot 1 F is missing data in the “planted” column. Please update. RESPONSE: Missing data has been added to the “planted” column as requested. · Cross-section Graphs: Several of the cross-section graphs do not provide confidence that surveys were conducted correctly. Surveys do not begin and end on cross section pins, elevations are different at end pins, and elevation/lateral errors appear to be present in several sections. Please review all cross-sections and specifically XS9-XS14. RESPONSE: Rebar pins are set at the existing ground elevation and are represented by the first (Left Pin) and last (Right Pin) point of the stationing. End pin stationing and elevation has been corrected and elevations have been reviewed and verified as requested. · Table 9: Please review MY1 section data. Bankfull elevation – based on AB-Bankfull area should not be the same as MY0 data. Please verify other measurements and update calculations as necessary. RESPONSE: Data has been reviewed and updated as necessary as requested. · Table 10: The draft report only contained a graph for Crest Gauge 3. Please include graphs for Crest Gauge 1 and 2. All crest gauge graphs should be included in each monitoring report. Please include the bankfull elevation line on each graph. Graph legend has an orange box indicating Manual. Please revise. RESPONSE: Graphs have been included and revisions made as requested. Digital Deliverable Comments · Wetland gauge data was not included with draft digital deliverables. Please include raw data and spreadsheets used to produce figures with final submittal. RESPONSE: Wetland gauge data has been included in the electronic submission files as requested. As requested, Michael Baker has provided an electronic response letter addressing the DMS comments received and two (2) hardcopies of the FINAL report, and the updated e-submission digital files will be sent via secure ftp link. A full final electronic copy with electronic support files have been included on a USB drive. Please do not hesitate to contact me (Jason.york@mbakerintl.com 828-412-6101) should you have any questions regarding our response submittal. Sincerely, Jason York Environmental Scientist Enclosure: Final MY3 Report Russell Gap Mitigation Project APPENDIX A Background Tables and Figures ^_ Hayesville 06020002060010 £¤64 69 175 Clay County ^_ £¤19 £¤64 141 175 69 Figure 1Project Vicinity MapBlair Creek Mitigation Project ± Note: Site is located within Targeted L oca l Watershed 06020002060010 SiteLocation Site Location 0 1 20.5 Miles Clay County North CarolinaGeorgia Chatuge Lake Reach R1 Reach R3 Reach UT1 Reach R2 Conservation Easement Stream Centerlines by Approach Restoration Enhancement Level II W1: Wetland Restoration: Re-establishment (1:1) W2: Wetland Restoration: Rehabilitation (1.5:1) W3: Wetland Enhancement (2:1) Aerial Photograph Source: NC OneMap, NC Center for Geographic Information and Analysis C h e r r y R o a d 0 250 500125Feet Figure 2: ProjectAsset and Credit MapBlair Creek Mitigation ProjectClay County, NC North Carolina Division of Mitigation Services DMS Proj. No. 100047 Stream Mitigation FeaturesReachApproachLe ngth (f t)Ratio (X:1)Credi tsR1R2,699.76 1 2699.76R2R1,473.91 1 1473.91R3R118.94 1 118.94UT1EII176.90 2.5 70.76Total Footage f or Cre dit 4,469.51Restoration4,292.61 4,292.61Enhancement II 176.90 70.76Total Credits 4,363.37 Wetland Mitigation Fe aturesApproachArea (ac)Ratio (X:1)Credi ts Restorati on by Reestabl ishment (W1)5.218 1.000 5.218 Restorati on by Rehabi li tati on (W2)0.693 1.500 0.462 Enhanceme nt (W3)0.184 2.000 0.092 Total Credits 5.772 Table 1.0 Project Components and Mitigation Credits Blair Creek Mitigation Project - NCDMS Project No. 100047 Existing Mitigation Project Wetland Footage As-Built Plan Approach Mitigation Component Position and or Restored Designed Restoration Priority Mitigation Plan (reach ID, etc.) HydroType Acreage Stationing Footage1 Footage Level Level Ratio (X:1) Credits 2 Reach 1 2,399 10+00 - 2501.60, 2531.66 - 3771.92 2,699.76 2,741.86 R P1 1.0 2,699.760 Reach 2 1,468 09+99.88 - 13+72.39, 14+20.16 - 2555.18 1,473.91 1,507.53 R P1 1.0 1,473.910 Reach 3 185 25+55.18 - 26+88.82 118.94 133.64 R P1 1.0 118.940 Reach UT1 195 10+14.97 - 11+88.00 176.9 173.03 EII - 2.5 70.760 Wetland 1 5.218 5.218 5.217 R Re-establishment 1.0 5.218 Wetland 2 0.693 0.693 0.691 R Rehabilitation 1.5 0.462 Wetland 3 0.184 0.184 0.179 E Enhancement 2.0 0.092 1 All stream stationing and restored footage numbers reported here and shown in the as-built plan sheets use thalweg survey values and have had easement breaks removed. 2 Credits reported here are derived from the design lengths as taken from the approved mitigation plan Table 11.1 Table 1.1 Table 1.2 As-Built Centerline Length and Area Summations by Mitigation Category Overall Assets Summary Riverine Non-Riverine Restoration 4,383 4,363.370 Enhancement I RP Wetland 5.772 Enhancement II 173 NR Wetland Re-establishment 5.217 Rehabilitation 0.691 Wetland Enhancement 0.179 Creation Preservation High Quality Pres Overall Credits Buffer Restoration Level Riparian Wetland (acres) Asset Category Stream (cool) Stream (linear feet)Non-riparian Wetland (acres)Credited Buffer (ft2) MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Grading Completed in December 2021 Elapsed Time Since grading complete:1 year All Planting Completed in February 2022 Elapsed Time Since planting complete:10 months Number of Reporting Years1:1 Data Collection Completion or Activity or Deliverable Complete Delivery Institution date N/A Jan-22 404 permit date N/A Jan-21 Mitigation Plan N/A May-21 Final Design – Construction Plans N/A Dec-21 Construction Grading Completed 1/22/2022 Jan-22 As-Built Survey Jan-22 Jan-22 Livestake and Bareroot Planting Completed Feb-22 Feb-22 As-Built Stream Survey Feb-22 Feb-22 As-Built Vegetation Monitoring Mar-22 Apr-22 As-Built Baseline Monitoring Report (MY0) Mar-22 May-22 Year 1 Stream Survey Oct-22 N/A Year 1 Vegetation Monitoring Oct-22 N/A Year 1 Monitoring Nov-22 Dec-22 Year 2 Monitoring (anticipated) Oct-23 Dec-23 Year 3 Monitoring (anticipated) Oct-24 Dec-24 Year 4 Monitoring (anticipated) Oct-25 Dec-25 Year 5 Monitoring (anticipated) Oct-26 Dec-26 Year 6 Monitoring (anticipoated) Oct-27 Dec-27 Year 7 Monitoring (anticipated) Oct-28 Dec-28 1 = The number of monitoring reports excluding the as-built/baseline report Table 2. Project Activity and Reporting History Blair Creek Mitigation Project - NCDMS Project No. 100047 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Designer 8000 Regency Parkway, Suite 600 Cary, NC 27518 Michael Baker Engineering, Inc.Contact: Katie McKeithan, Tel. 919-418-5703 Construction Contractor 5616 Coble Church Rd Julian, NC 27283 KBS Earthworks, Inc.Contact: Kory Strader, Tel. 336-362-0289 Survey Contractor 88 Central Avenue Asheville, NC 28801 Kee Mapping and Surveying Contact: Brad Kee, Tel. 828-575-9021 Planting Contractor 215 Moonridge Road Ripple EcoSolutions Chapel Hill, NC 27516 Contact: George Morris, Tel. 919-818-3984 Seeding Contractor 5616 Coble Church Rd Julian, NC 27283 KBS Earthworks, Inc.Contact: Kory Strader, Tel. 336-362-0289 Seed Mix Sources 5204 Highgreen Court, Green Resources Colfax, NC 27235 Telephone: 336-855-6363 Nursery Stock Suppliers 825 Maude Etter Road, McMinnville, TN 37110 Dykes and Son Nursery Telephone: 919-742-1200 Native Forest Nursery 11306 US-441, Chatswort, GA 30705 Telephone: 336-855-6363 Monitoring Performers 8000 Regency Parkway, Suite 600 Michael Baker Engineering, Inc.Michael Baker Engineering, Inc. Cary, NC 27518 Stream Monitoring POC Jason York, Tel. 828-380-0118 Vegetation Monitoring POC Jason York, Tel. 828-380-0119 Table 3. Project Contacts Blair Creek Mitigation Project - NCDMS Project No. 100047 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT USGS Hydrologic Unit 8-digit 6020002 Stream Temperature Regime cool Reach 1 (North Fork) Reach 2 (South Fork) Reach 3 (Blair Creek)UT1 2,399 1468 185 195 Unconfined Moderately Confined Moderately Confined Moderately Confined 983 880 1864 22 Perennial Perennial Perennial Intermittent WS-IV WS-IV WS-IV N/A B-E4/C4 E4/C4 F4/C4 B/B IV – Degradation and Widening III – Degradation IV – Aggradation and Widening III – Degrading Zone X Zone X Zone AE Zone X Applicable? Resolved? Yes Yes Yes Yes Yes Yes Yes Yes No N/A No N/A No N/A FEMA Floodplain Compliance N/A Essential Fisheries Habitat N/A Endangered Species Act Categorical Exclusion Historic Preservation Act Categorical Exclusion Coastal Zone Management Act (CAMA)N/A Parameters Supporting Docs? Water of the United States - Section 404 PCN Water of the United States - Section 401 PCN NCDWR Water Quality Classification Stream Classification (existing / proposed) Evolutionary trend (Simon) FEMA classification Regulatory Considerations Perennial, Intermittent, Ephemeral Project Drainage Area (acres) 1,862 arcres / 2.94 square miles (at confluence in Blair Creek) Project Drainage Area Percentage of Impervious Area 1.7% impervious area USGS National Land Cover Database (NLCD) for 2011 12.6% developed (predominantly rural residential), 55.7% forested, 29.8% cultivated crops and pasture/hay, 1.2% shrub/scrub, and 0.7% herbaceous. Reach Summary Information Parameters Existing length of reach (linear feet) Valley confinement (Confined, moderately confined, unconfined) Drainage area (acres) River Basin Hiawassee USGS Hydrologic Unit 14-digit 06020002-060010 DWR Sub-basin 04-05-01 Physiographic Province Level III Blue Ridge, Level IV; Broad Basins Table 4. Project Attributes for Existing Conditions Blair Creek Mitigation Project – NCDMS Project No. 100047 Project Information Project Name Blair Creek Stream Mitigation Project County Clay Project Area (acres) 10.02 Project Coordinates (lat. and long.) 35.026069 N, -83.831862 W Project Watershed Summary Information MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT APPENDIX B Visual Assessment Data #0 #0 #0 #0 #0 #0 #0#0#0#0#0#0#0 #0 #0#0 #0#0 #0#0#0#0 #0 #0 #0#0 #0 #0 #0 #0#0 #0#0 #0 #0 #0 #0 #0 #0 #0 #0#0 #0 #0 #0 #0 #0 #0 !> !> !> !>"/ !> "/ !> !>!. !> !> "/ !> Fig. 3A Fig. 3B ± 0 250 500125Feet Overview Map: Current Condition Plan View (CCPV)Blair Creek Mitigation ProjectClay County, NCDMS Proj. No. 100047 Assessed Length (LF): 2,741.86 Major Channel Category Channel Sub-Category Metric Number Stable, Performing as Intended Total Number per As- built Number of Unstable Segments Amount of Unstable Footage % Stable, Performing as Intended 1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include point bars)1 15 99.5% 2. Degradation - Evidence of downcutting 0 0 100% 2. Riffle Condition 1. Texture Substrate - Riffle maintains coarser substrate 36 36 0.00 0.00 100% 1. Depth - Sufficent (Max Pool Depth/Mean Bkf Depth ≥ 1.5)36 36 100% 2. Length - Sufficent (>30% of centerline distance between tail of upstream riffle and head of downstream riffle) 27 27 100% 1. Thalweg centering at upstream of meander bend (Run)27 27 100% 2. Thalweg centering at downstream of meander bend (Glide)27 27 100% 1. Scoured/Eroding Bank lacking vegetative cover due to active scour and erosion 0 0 0 100% 2. Undercut Banks undercut/overhanging to the extent that mass wasting is expected 0 0 0 100% 3. Mass Wasting Banks slumping, caving or collapse 0 0 0 100% 0 0 100% 3. Engineering Structures 1. Overall Integrity Structures physically intact with no dislodged boulders or logs 31 31 100% 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill 10 10 100% 2a. Piping Structures lacking any substantial flow underneath or around sills or arms 30 31 97% 3. Bank Position Bank erosion within the structures extent of influence does not exceed 15%30 31 97% 4. Habitat Pool forming structures maintaining - Max Pool Depth/Mean Bankfull Depth ratio ≥ 1.5. Rootwads/logs providing some cover at low flow 14 14 100% Assessed Length (LF): 1,507.53 Major Channel Category Channel Sub-Category Metric Number Stable, Performing as Intended Total Number per As- built Number of Unstable Segments Amount of Unstable Footage % Stable, Performing as Intended 1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include point bars)0 0 100% 2. Degradation - Evidence of downcutting 0 0 100% 2. Riffle Condition 1. Texture Substrate - Riffle maintains coarser substrate 24 24 0.00 0.00 100% 1. Depth - Sufficent (Max Pool Depth/Mean Bkf Depth ≥ 1.5)26 26 100% 2. Length - Sufficent (>30% of centerline distance between tail of upstream riffle and head of downstream riffle)26 26 100% 1. Thalweg centering at upstream of meander bend (Run)26 26 100% 2. Thalweg centering at downstream of meander bend (Glide)26 26 100% 1. Scoured/Eroding Bank lacking vegetative cover due to active scour and erosion 0 1 25 99% 2. Undercut Banks undercut/overhanging to the extent that mass wasting is expected 0 0 0 100% 3. Mass Wasting Banks slumping, caving or collapse 0 0 0 100% 0 0 100% 3. Engineering Structures 1. Overall Integrity Structures physically intact with no dislodged boulders or logs 21 21 100% 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill 7 7 100% 2a. Piping Structures lacking any substantial flow underneath or around sills or arms 20 21 95% 3. Bank Position Bank erosion within the structures extent of influence does not exceed 15%20 21 95% 4. Habitat Pool forming structures maintaining - Max Pool Depth/Mean Bankfull Depth ratio ≥ 1.5. Rootwads/logs providing some cover at low flow 7 7 100% Table 5. Visual Stream Morphology Stability Assessment Blair Creek Mitigation Project – NCDMS Project No. 100047 - All Reaches Assessed in November 2022 2. Bank Totals Reach ID: Reach 1 1. Bed 1.Vertical Stability 3. Meander Pool Condition 4. Thalweg Position Table 5. Visual Stream Morphology Stability Assessment Blair Creek Mitigation Project – NCDMS Project No. 100047 Reach ID: Reach 2 1. Bed 1.Vertical Stability 3. Meander Pool Condition 4. Thalweg Position 2. Bank Totals MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Assessed Length (LF): 133.64 Major Channel Category Channel Sub-Category Metric Number Stable, Performing as Intended Total Number per As- built Number of Unstable Segments Amount of Unstable Footage % Stable, Performing as Intended 1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include point bars)0 0 100% 2. Degradation - Evidence of downcutting 0 0 100% 2. Riffle Condition 1. Texture Substrate - Riffle maintains coarser substrate 2 2 0.00 0.00 100% 1. Depth - Sufficent (Max Pool Depth/Mean Bkf Depth ≥ 1.5)3 3 100% 2. Length - Sufficent (>30% of centerline distance between tail of upstream riffle and head of downstream riffle)3 3 100% 1. Thalweg centering at upstream of meander bend (Run)3 3 100% 2. Thalweg centering at downstream of meander bend (Glide)3 3 100% 1. Scoured/Eroding Bank lacking vegetative cover due to active scour and erosion 0 0 0 100% 2. Undercut Banks undercut/overhanging to the extent that mass wasting is expected 0 0 0 100% 3. Mass Wasting Banks slumping, caving or collapse 0 0 0 100% 0 0 100% 3. Engineering Structures 1. Overall Integrity Structures physically intact with no dislodged boulders or logs 1 1 100% 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill 1 1 100% 2a. Piping Structures lacking any substantial flow underneath or around sills or arms 1 1 100% 3. Bank Position Bank erosion within the structures extent of influence does not exceed 15%1 1 100% 4. Habitat Pool forming structures maintaining - Max Pool Depth/Mean Bankfull Depth ratio ≥ 1.5. Rootwads/logs providing some cover at low flow 1 1 100% Assessed Length (LF): 173.03 Major Channel Category Channel Sub-Category Metric Number Stable, Performing as Intended Total Number per As- built Number of Unstable Segments Amount of Unstable Footage % Stable, Performing as Intended 1. Aggradation - Bar formation/growth sufficient to significantly deflect flow laterally (not to include point bars)0 0 100% 2. Degradation - Evidence of downcutting 0 0 100% 2. Riffle Condition 1. Texture Substrate - Riffle maintains coarser substrate 7 7 0.00 0.00 100% 1. Depth - Sufficent (Max Pool Depth/Mean Bkf Depth ≥ 1.5) Plunge Pools 7 7 100% 2. Length - Sufficent (>30% of centerline distance between tail of upstream riffle and head of downstream riffle)7 7 100% 1. Thalweg centering at upstream of meander bend (Run)N/A N/A 100% 2. Thalweg centering at downstream of meander bend (Glide)N/A N/A 100% 1. Scoured/Eroding Bank lacking vegetative cover due to active scour and erosion 0 0 0 100% 2. Undercut Banks undercut/overhanging to the extent that mass wasting is expected 0 0 0 100% 3. Mass Wasting Banks slumping, caving or collapse 0 0 0 100% 0 0 100% 3. Engineering Structures 1. Overall Integrity Structures physically intact with no dislodged boulders or logs 7 7 100% 2. Grade Control Grade control structures exhibiting maintenance of grade across the sill 7 7 100% 2a. Piping Structures lacking any substantial flow underneath or around sills or arms 7 7 100% 3. Bank Position Bank erosion within the structures extent of influence does not exceed 15%7 7 100% 4. Habitat Pool forming structures maintaining - Max Pool Depth/Mean Bankfull Depth ratio ≥ 1.5. Rootwads/logs providing some cover at low flow 7 7 100% Table 5. Visual Stream Morphology Stability Assessment Blair Creek Mitigation Project – NCDMS Project No. 100047 - All Reaches Assessed in November 2022 Reach ID: Reach 3 1. Bed 1.Vertical Stability 3. Meander Pool Condition 4. Thalweg Position 2. Bank Totals Table 5. Visual Stream Morphology Stability Assessment 2. Bank Totals Blair Creek Mitigation Project – NCDMS Project No. 100047 Reach ID: Reach UT1 1. Bed 1.Vertical Stability 3. Meander Pool Condition 4. Thalweg Position MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Vegetation Category Defintions Mapping Threshold (acres)CCPV Depiction Number of Polygons Combined Acreage % of Planted Acreage 1. Bare Areas * Very limited cover both woody and herbaceous material. 0.1 acres N/A 0 0.00 0.0% 2. Low Stem Density Areas Woody stem densities clearly below target levels based on MY3, 4, or 5 stem count criteria.0.1 acres N/A 0 0.00 0.0% 3. Areas of Poor Growth Rates or Vigor Areas with woody stems or a size class that are obviously small given the monitoring year.0.25 acres N/A 0 0.00 0.0% Vegetation Category Defintions Mapping Threshold CCPV Depiction Number of Points Combined Acreage % of Planted Acreage 4. Invasive Areas of Concern Areas or points (if too small to render as polygons at map scale) 1000 ft² Green Hatching 0 0.00 0.0% 5. Easement Encroachment Areas Areas or points (if too small to render as polygons at map scale) 577 ft² Yellow Polygon 4 0.05 0.7% Easement Acreage: 8.3 Table 6. Vegetation Conditions Assessment Blair Creek Mitigation Project - NCDMS Project No. 100047 - Vegetation Assessed in November 2022 Planted Acreage: 8.3 Total Cumulative Total MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Blair Creek: Stream Station Photo-Points NCDMS Project No. #100047 – MY 1 Photos taken November 22, 2022. PP-1: R1 Upstream, Station 10+75- Begin R1 PP-2: R1, Upstream, Station 12+25 PP-3: R1, Upstream, Station 13+50 PP-4: R1, Upstream, Station 15+50 PP-5: R1, Upstream, Station 16+00 PP-6: R1, Upstream, Station 17+00 Blair Creek: Stream Station Photo-Points NCDMS Project No. #100047 – MY 1 Photos taken November 22, 2022. PP-7: R1 Upstream, Station 17+40 PP-8: R1, Upstream, Station 19+50 PP-9: R1, Upstream, Station 20+20 PP-10: R1, Upstream, Station 21+75 PP-11: R1, Upstream Station 23+75 PP-12: R1, Upstream, Station 24+60 Blair Creek: Stream Station Photo-Points NCDMS Project No. #100047 – MY 1 Photos taken November 22, 2022. PP-13: R1, Downstream, Station 24+25- Culvert PP-14: R1, Upstream, Station 25+60- Culvert PP-15: R1, Upstream, Station 28+00 PP-16: R1, Upstream, Station 28+60 PP-17: R1, Upstream, Station 31+75 PP-18: R1, Upstream, Station 32+25 Blair Creek: Stream Station Photo-Points NCDMS Project No. #100047 – MY 1 Photos taken November 22, 2022. PP-19: R1, Upstream, Station 32+75 PP-20: R1, Upstream, Station 33+75 PP-21: R1, Upstream, Station 34+65 PP-22: R1, Upstream, Station 36+75 PP-23: R1, Upstream, Station 37+00 – End R1 PP-24: UT1, Upstream, Station 10+60 Blair Creek: Stream Station Photo-Points NCDMS Project No. #100047 – MY 1 Photos taken November 22, 2022. PP-25: UT1, Upstream, Station 11+85- Confluence with R2 PP-26: R2, Upstream, Station 10+50- Begin R2 PP-27: R2, Upstream, Station 11+60 PP-28: R2, Upstream, Station 13+51 PP-29: R2, Upstream, Station 12+25 PP-30: R2, Upstream, Station 16+50 Blair Creek: Stream Station Photo-Points NCDMS Project No. #100047 – MY 1 Photos taken November 22, 2022. PP-31: R2, Upstream, Station 17+40 PP-32: R2, Upstream, Station 18+40 PP-33: R2, Upstream, Station 19+15 PP-34: R2, Upstream at Station 20+80 PP-35: R2, Upstream, Station 21+75 PP-36: R2, Upstream, Station 22+30 Blair Creek: Stream Station Photo-Points NCDMS Project No. #100047 – MY 1 Photos taken November 22, 2022. PP-37: R2, Upstream, Station 23+50 PP-38: R2, Upstream, Station 24+60 PP-39: R2, Upstream, Station 25+20- Confluence with R1 PP-40: R3, Upstream, Station 25+50- Begin R3 PP-41: R3, view upstream at Station 10+80- End R3 PP-42: R1, Swale on Right Floodplain, Station 16+25 Blair Creek: Stream Station Photo-Points NCDMS Project No. #100047 – MY 1 Photos taken November 22, 2022. PP-43: R1, Swale on Left Floodplain, Station 17+00 PP-44: R1, Swale on Left Floodplain, Station 20+70 PP-45: R1, Swale on Left Floodplain, Station 24+00 PP-46: R1, Overflow Channel on Left Floodplain, Station 26+75 PP-47: R1, Swale on Right Floodplain, Station 36+40 Blair Creek: Vegetation Plot Photographs NCDMS Project No. 100047 Vegetation Plot #1: Photo taken September 21, 2022 Vegetation Plot #2: Photo taken November 22, 2022 Vegetation Plot #3: Photo taken September 21, 2022 Vegetation Plot #4: Photo taken September 21, 2022 Vegetation Plot #5: Photo taken September 21, 2022 Vegetation Plot #6: Photo taken September 21, 2022 Blair Creek: Vegetation Plot Photographs NCDMS Project No. 100047 Random Vegetation Plot #1: Photo taken November 22, 2022 Random Vegetation Plot #2: Photo taken November 22, 2022 Monitoring Gauges and Overbank Photographs Monitoring Well 1. (Photo taken November 22, 2022) Monitoring Well 2. (Photo taken November 22, 2022) Monitoring Well 3. (Photo taken November 22, 2022) Monitoring Well 4. (Photo taken November 22, 2022) Monitoring Well 5. (Photo taken November 22, 2022) Monitoring Well 6. (Photo taken November 22, 2022) Monitoring Gauges and Overbank Photographs Monitoring Well 7. (Photo taken November 22, 2022) Monitoring Well 8. (Photo taken November 22, 2022) Monitoring Well 9. (Photo taken November 22, 2022) Monitoring Well 10. (Photo taken November 22, 2022) Crest Gauge 1. Reach 1 (Photo taken November 22, 2022) Crest Gauge 2. Confluence Reach 1&2 (Photo taken November 22, 2022) Monitoring Gauges and Overbank Photographs Crest Gauge 3. (Photo taken November 22, 2022) Flow Gauge 1. UT1 (Photo taken November 22, 2022) Overbank evidence. Debris in lower Reach 1 floodplain. (Photo taken July 1, 2022) Overbank evidence. Debris in lower Reach 1 floodplain (Photo taken July 1, 2022) Overbank evidence. Debris jam on Crest Gauge 3 Reach 2 Left floodplain. (Photo taken November 22, 2022) APPENDIX C Vegetation Plot Data Table 7: Planted Stem Counts by Plot and Species 8.3 2022-02-10 NA 2022-11-22 2022-11-22 0.0247 Veg Plot 3 R Veg Plot 4 R Planted Total Planted Total Planted Total Planted Total Planted Total Planted Total Total Total Acer negundo boxelder Tree FAC 1 1 4 Acer saccharinum silver maple Tree FACW 1 1 3 3 1 1 1 Alnus serrulata hazel alder Tree OBL 1 1 1 1 Aronia arbutifolia red chokeberry Shrub FACW 1 1 Betula alleghaniensis yellow birch Tree FAC 2 2 Betula lenta sweet birch Tree FACU 2 Betula nigra river birch Tree FACW 2 2 1 1 3 3 2 2 3 3 2 2 Carpinus caroliniana American hornbeam Tree FAC 2 2 1 1 4 4 1 Cephalanthus occidentalis common buttonbush Shrub OBL 2 2 1 1 Cornus amomum silky dogwood Shrub FACW 4 4 2 2 2 Diospyros virginiana common persimmon Tree FAC 1 1 Fraxinus pennsylvanica green ash Tree FACW 1 1 1 1 Hamamelis virginiana American witchhazel Tree FACU 1 Ilex verticillata common winterberry Tree FACW 2 2 Lindera benzoin northern spicebush Tree FAC 1 1 Liriodendron tulipifera tuliptree Tree FACU 1 1 Nyssa sylvatica blackgum Tree FAC 1 Platanus occidentalis American sycamore Tree FACW 3 3 3 3 3 3 1 1 Quercus falcata southern red oak Tree FACU 1 Quercus imbricaria shingle oak Tree FAC 1 1 1 1 1 1 2 2 1 1 1 Quercus phellos willow oak Tree FAC 1 1 1 Salix nigra black willow Tree OBL 2 Ulmus americana American elm Tree FACW 1 1 1 1 Sum Performance Standard 0 15 4 4 9 9 10 10 10 10 14 14 14 11 Quercus lyrata overcup oak Tree OBL 1 1 1 1 Quercus michauxii swamp chestnut oak Tree FACW 1 2 2 1 1 Sum Proposed Standard 15 15 4 4 9 9 10 10 10 10 14 14 14 11 15 4 9 10 10 14 14 11 607 162 364 405 405 567 567 445 8 3 7 5 5 8 9 8 25 50 25 25 40 21 29 18 1 3 1 1 1 1 2 2 0 0 0 0 0 0 0 0 15 4 9 10 10 14 14 11 607 162 364 405 405 567 567 445 8 3 7 5 5 8 9 8 25 50 25 25 40 21 29 18 1 3 1 1 1 1 2 2 0 0 0 0 0 0 0 0 1). Bolded species are proposed for the current monitoring year, italicized species are not approved, and a regular font indicates that the species has been approved. 2). The "Species Included in Approved Mitigation Plan" section contains only those species that were included in the original approved mitigation plan. The "Post Mitigation Plan Species" section includes species that are being proposed through a mitigation plan addendum for the current monitoring year (bolded) , species that have been approved in prior monitoring years through a mitigation plan addendum (regular font), and species that are not approved (italicized). 3). The "Mitigation Plan Performance Standard" section is derived only from stems included in the original mitigation plan, whereas the "Post Mitigation Plan Performance Standard" includes data from mitigation plan approved, post mitigation plan approved, and proposed stems. Post Mitigation Plan Performance Standard Current Year Stem Count Stems/Acre Species Count Dominant Species Composition (%) Average Plot Height (ft.) % Invasives Mitigation Plan Performance Standard Current Year Stem Count Stems/Acre Species Count Dominant Species Composition (%) Average Plot Height (ft.) % Invasives Date of Current Survey Plot size (ACRES) Scientific Name Common Name Planted Acreage Date of Initial Plant Date(s) of Supplemental Plant(s) Date(s) Mowing Veg Plot 4 F Veg Plot 5 F Veg Plot 6 F Species Included in Approved Mitigation Plan Post Mitigation Plan Species Tree/S hrub Indicator Status Veg Plot 1 F Veg Plot 2 F Veg Plot 3 F MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Table 7: Planted Stem Counts by Plot and Species Stems /Ac.Av. Ht. (ft) # Species % Invasives Stems/Ac. Av. Ht. (ft) # Species % Invasives Stems/Ac. Av. Ht. (ft) # Species % Invasives 607 8 0 162 3 0 364 7 0 769 8 0 729 11 0 648 11 0 Stems /Ac.Av. Ht. (ft) # Species % Invasives Stems/Ac. Av. Ht. (ft) # Species % Invasives Stems/Ac. Av. Ht. (ft) # Species % Invasives 405 5 0 405 5 0 567 8 0 688 9 0 688 9 0 729 9 0 Stems /Ac.Av. Ht. (ft) # Species % Invasives Stems/Ac. Av. Ht. (ft) # Species % Invasives Project Stems per Acre = 424 567 9 0 445 8 0 *Each monitoring year represents a different plot for the random vegetation plot "groups". Random plots are denoted with an R, and fixed plots with an F. Vegetation Performance Standards Summary Table Veg Plot 1 F Veg Plot 2 F Veg Plot 3 F Monitoring Year 7 Monitoring Year 5 Monitoring Year 3 Monitoring Year 2 Monitoring Year 1 Monitoring Year 0 Veg Plot 4 F Veg Plot 5 F Veg Plot 6 F Monitoring Year 7 Monitoring Year 5 Monitoring Year 3 Monitoring Year 2 Monitoring Year 1 Monitoring Year 0 Veg Plot Group 1 R Veg Plot Group 2 R Monitoring Year 7 Monitoring Year 5 Monitoring Year 3 Monitoring Year 2 Monitoring Year 1 Monitoring Year 0 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT APPENDIX D Stream Geomorphology Data FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Restoration Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev LTOB Elev Pool -- 22.6 15.0 1.5 2.4 9.9 -- -- 1848.21 1848.21 Looking at the Left Bank Looking at the Right Bank Year 1 Survey Data Collected: October 2022 Permanent Cross-Section 1 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 0 10 20 30 40 50 60 70 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 1 , Cross-Section 1 As-built BKF Floodprone MY1 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev TOB Elev Riffle E 16.70 14.30 1.20 2.00 12.20 1.0 4.5 1848.06 1848.14 Looking at the Left Bank Looking at the Right Bank Note: Per DMS/IRT request, bank height ratio for MY1 has been calculated using the bankfull elevation as determined from the as-built bankfull area. All other values were calculated using the as-built bankfull elevation. Permanent Cross-Section 2 (Year 1 Survey Data Collected: October 2022) Restoration 221 222 223 224 225 226 227 0 10 20 30 40 50 60 70 El e v a t i o n ( f t ) Station (ft) Browns Summit Restoration Site Reach 4, Cross-section 1 As-built Bankfull Floodprone 1845 1846 1847 1848 1849 1850 1851 1852 1853 0 10 20 30 40 50 60 70 80 El e v a t i o n ( f t ) Station (ft) Blair CreekMitigation Site Reach 1, Cross-Section 2 As-built BKF Floodprone MY1 DMS BKF MY1 DMS MY1 BKF Elevation = 1848.33 Thalweg = 1846.01 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev TOB Elev Pool -- 34.27 13.53 2.53 4.25 5.4 -- -- 1847.87 1847.88 Looking at the Left Bank Looking at the Right Bank Permanent Cross-Section 3 Year 1 Survey Collected: October 2022 Restoration 221 222 223 224 225 226 227 0 10 20 30 40 50 60 70 El e v a t i o n ( f t ) Station (ft) Browns Summit Restoration Site Reach 4, Cross-section 1 As-built Bankfull Floodprone 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 0 10 20 30 40 50 60 70 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 1, Cross-Section 3 As-built BKF Floodprone MY1 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Restoration Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev LTOB Elev Riffle C 16 16.2 1 1.4 16.5 1.10 1.1 1846.31 1846.51 Looking at the Left Bank Looking at the Right Bank Permanent Cross-Section 4 Year 1 Survey Collected: September 2022 Note: Per DMS/IRT request, bank height ratio for MY1 has been calculated using the bankfull elevation as determined from the as-built bankfull area. All other values were calculated using the as-built bankfull elevation. 1844 1845 1846 1847 1848 1849 0 10 20 30 40 50 60 70 80 El e v a t i o n ( f t ) Station (ft) Russell Gap Mitigation Site Reach 1, Cross-Section 4 As-built Bankfull Floodprone MY 1 MY 1 BKF DMS MY1 BKF Elevation = 1846.43 Thalweg = 1844.94 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev LTOB Elev Riffle C 22.2 16.50 1.30 2.1 12.3 1.0 4.1 1845.28 1845.25 Looking at the Left Bank Looking at the Right Bank Note: Per DMS/IRT request, bank height ratio for MY1 has been calculated using the bankfull elevation as determined from the as-built bankfull area. All other values were calculated using the as-built bankfull elevation. Permanent Cross-Section 5 Year 1 Survey Collected: September 2022 DMS MY1 BKF = 491.56' 1842 1843 1844 1845 1846 1847 1848 0 10 20 30 40 50 60 70 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 1, Cross-Section 5 As-built Bankfull Floodprone MY1 MY1 BKF DMS MY1 BKF Elevation = 1845.26 Thalweg = 1843.20 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev TOB Elev Pool -- 36.2 20.1 1.8 3.4 11.2 -- -- 1842.09 1842.09 Looking at the Left Bank Looking at the Right Bank Permanent Cross-Section 6 Year 1 Survey Collected: October 2022 Restoration 1838 1839 1840 1841 1842 1843 1844 0 10 20 30 40 50 60 70 80 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 1, Cross-Section 6 As-built Bankfull Floodprone MY1 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev TOB Elev Riffle C 20.6 16.9 1.2 1.9 13.8 1.00 4.40 1839.27 1839.42 Looking at the Left Bank Looking at the Right Bank Note: Per DMS/IRT request, bank height ratio for MY1 has been calculated using the bankfull elevation as determined from the as-built bankfull area. All other values were calculated using the as-built bankfull elevation. Permanent Cross-Section 7 Year 1 Survey Collected: September 2022 Restoration 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 0 10 20 30 40 50 60 70 80 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 1, Cross-Section 7 As-built Bankfull Floodprone MY1 MY1 BKF DMS MY1 BKF Elevation = 1839.34 Thalweg = 1837.43 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev LTOB Elev Pool -- 44.2 13.99 3.16 5.02 4.43 -- -- 1837.35 1837.35 Looking at the Left Bank Looking at the Right Bank Permanent Cross-Section 8 Year 1 Survey Collected: October 2022 DMS MY1 BKF = ' 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 0 10 20 30 40 50 60 70 80 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 1, Cross-Section 8 As-built BKF Floodprone MY1 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Enhancement 2 Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev LTOB Elev Pool -- 4.8 5.56 0.9 2.1 6.39 -- -- 1845.99 1846.25 -- Looking at the Left Bank Looking at the Right Bank Permanent Cross-Section 9 Year 1 Survey Collected: September 2022 1843 1844 1845 1846 1847 1848 0 10 20 30 40 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site UT1, Cross-Section 9 As-built BKF Floodprone MY 1 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev TOB Elev Pool -- 33.46 24.10 1.39 3.66 17.34 -- -- 1843.54 1843.54 Looking at the Left Bank Looking at the Right Bank Permanent Cross-Section 10 Year 1 Survey Collected: November 2022 Restoration 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 0 10 20 30 40 50 60 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 2, Cross-Section 10 As-built Bankfull Floodprone MY1 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Restoration Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev LTOB Elev Riffle C 14.1 16.7 0.8 1.5 19.7 1.00 4.4 1841.94 1842.23 Looking at the Left Bank Looking at the Right Bank Permanent Cross-Section 11 Year 1 Survey Collected: September 2022 Note: Per DMS/IRT request, bank height ratio for MY1 has been calculated using the bankfull elevation as determined from the as-built bankfull area. All other values were calculated using the as-built bankfull elevation. DMS MYB = 519.05' 1839 1840 1841 1842 1843 1844 0 10 20 30 40 50 60 70 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 2, Cross-Section 11 As-built As-built BKF Floodprone MY1 MY1 BKF DMS MY1 BKF Elevation= 1842.3 Thalweg = 1840.46 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev TOB Elev Pool -- 27.28 20.54 1.33 3.13 15.44 -- -- 1839.98 1839.98 Looking at the Left Bank Looking at the Right Bank Permanent Cross-Section 12 Year 1 Survey Collected: November 2022 Restoration 1836 1837 1838 1839 1840 1841 1842 -5 5 15 25 35 45 55 65 75 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 2, Cross-Section 12 As-built Bankfull Floodprone MY1 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev TOB Elev Riffle C 16.00 20.00 0.80 1.3 25.00 0.9 3.1 1838.84 1838.92 Permanent Cross-Section 13 Year 1 Survey Collected: September 2022 Looking at the Left Bank Looking at the Right Bank Restoration Note: Per DMS/IRT request, bank height ratio for MY1 has been calculated using the bankfull elevation as determined from the as-built bankfull area. All other values were calculated using the as-built bankfull elevation. 1836 1837 1838 1839 1840 1841 0 10 20 30 40 50 60 70 80 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 2, Cross-Section 13 As-built BKF Floodprone MY1 MY1 BKF DMS MY1 BKF Elevation = 1839.07 Thalweg = 1837.54 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev TOB Elev Riffle C 25.2 22.2 1.1 2.2 19.6 1.0 4.3 1837.60 1837.25 Note: Per DMS/IRT request, bank height ratio for MY1 has been calculated using the bankfull elevation as determined from the as-built bankfull area. All other values were calculated using the as-built bankfull elevation. Looking at the Left Bank Looking at the Right Bank Permanent Cross-Section 14 Year 1 Survey Collected: October 2022 Restoration 1835 1836 1837 1838 1839 1840 0 10 20 30 40 50 60 70 80 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 2, Cross-Section 14 As-built BKF Floodprone MY1 MY1 BKF DMS MY1 BKF Elevation = 1837.26 Thalweg = 1835.42 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT FIGURE 4. MY1 CROSS SECTIONS WITH ANNUAL OVERLAY Feature Stream Type BKF Area BKF Width BKF Depth Max BKF Depth W/D BH Ratio ER BKF Elev TOB Elev Riffle B 34.9 26.0 1.3 2.2 19.40 1 2.5 1834.8 1834.8 Note: Per DMS/IRT request, bank height ratio for MY1 has been calculated using the bankfull elevation as determined from the as-built bankfull area. All other values were calculated using the as-built bankfull elevation. Looking at the Left Bank Looking at the Right Bank Permanent Cross-Section 15 Year 1 Survey Collected: October 2022 Restoration 1832 1833 1834 1835 1836 1837 1838 1839 0 10 20 30 40 50 60 70 80 El e v a t i o n ( f t ) Station (ft) Blair Creek Mitigation Site Reach 3, Cross-Section 15 MY1 BKF BKF Floodprone MY1 As-Built DMS MY1 BKF Elevation = 1834.73 Thalweg = 1832.56 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK STREAM MITIGATION PROJECT (DMS #100047) MONITORING YEAR 1 REPORT Dimension and Substrate - Riffle Min Mean Max Min Mean Max Min Mean Max Min Mean Max BF Width (ft)-----8.57 - 8.59 ----- ----- ----- ----- ----- 16.5 - 17.0 ----- 16.48 16.60 17.2 Floodprone Width (ft)-----12.9 - 34.7 ----- ----- ----- ----- ----- 60.00 ----- 66.46 67.31 77 BF Mean Depth (ft)-----1.43 - 1.48 ----- ----- ----- ----- ----- 1.1-1.2 ----- 1.09 1.24 1.3 BF Max Depth (ft)-----2.77 ----- ----- ----- ----- ----- 1.4 - 1.8 ----- 1.55 1.84 2.1 BF Cross-sectional Area (ft²)-----12.3 - 12.7 ----- ----- ----- ----- ----- 18.2 - 20.4 ----- 17.91 20.58 21.9 Width/Depth Ratio -----6.01 - 5.79 ----- 10.00 12.50 15.00 ----- 14.2 - 15 ----- 11.95 12.58 15.1 Entrenchment Ratio -----1.5 - 4.05 ----- ----- ----- ----- ----- 3.5-3.6 ----- 3.93 4.04 4.5 Bank Height Ratio -----2.7 - 1.8 ----- 1.00 1.05 1.10 ----- 1.00 ----- 1.00 1.00 1.0 d50 (mm)---------- ----- ----- ----- ----- ----- ----- ----- ---- ---- ---- Channel Beltwidth (ft)-----N/A ----- ----- ---- ----- 58-60 N/A 132-135 53 67 92.00 Radius of Curvature (ft)-----N/A ----- ----- ---- ----- 33-34 N/A 50-51 33 45 61.00 Rc/Bankfull width (ft/ft)-----N/A ----- 2.00 2.5000 3.00 ----- 2.0-3.0 ----- 1.9 2.7 3.70 Meander Wavelength (ft)-----N/A ----- ----- ---- ----- 115.00 N/A 235.00 134 163 229.00 Meander Width Ratio -----N/A ----- 3.50 5.7500 8.00 3.50 N/A 8.00 3.1 4.0 5.60 Riffle Length (ft)---------- ----- ----- ----- ----- ----- ----- ----- 6.10 33.54 87.52 Riffle Slope (ft/ft) 0.0260 0.0345 0.0430 ----- ----- ----- 0.006-0.007 0.0080 0.009-0.01 -0.018 0.011 0.09 Pool Length (ft) ----- ----- ----- ----- ----- ----- ----- ----- ----- 11.00 42.00 70.00 Pool to Pool Spacing (ft) 35.00 57.50 80.00 ----- ----- ----- 58 88.5 119 30.00 80.19 135.00 Pool Max Depth (ft)1.14 1.9600 2.77 ---------------1.8 3.0 4.2 0.00 0.00 5.04 SC% / Sa% / G% / C% / Bo%------------------------------ d16 / d35 / d50 / d84 / d95 ----------------------------- Drainage Area (SM) ----- 1.38 - 1.53 ----- ----- ----- ----- ----- 1.38 --- ----- 1.38 ----- Impervious cover estimate (%) ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Rosgen Classification ----- B - E ----- ----- C4 ----- ----- C4 ----- ----- C4 ----- BF Velocity (fps) ----- 3.15 - 3.20 ----- ----- 5.0 5.0 ----- 3.00 ----- ----- ---- ----- BF Discharge (cfs) ----- 38.7 - 40.7 ----- ----- ----- ----- ----- 61.85 ----- ----- ---- ----- Valley Length ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- 2,280.00 ----- Channel Length (ft) ----- 2,399 ----- ----- ----- ----- ----- 2,730 ----- ----- 2,771.90 ----- Sinuosity ----- 1.06 ----- ----- ----- ----- ----- 1.22 ----- ----- 1.22 ----- Water Surface Slope (Channel) (ft/ft)------------------------------------------------------------ Pattern Profile Substrate and Transport Parameters Additional Reach Parameters 0% / 7% / 89% / 4% / 0%0% / 1% / 83% / 16% / 0% 11 / 17 / 21 / 38 / 60 16 / 28 / 37 / 64 / 127 Table 8. Baseline Stream Data Summary Blair Creek Restoration Project: DMS Project No ID. 100047 Reach 1 (North Fork) Parameter Pre-Existing Condition Reference Reach(es) Data Design As-built Composite MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Dimension and Substrate - Riffle Min Mean Max Min Mean Max Min Mean Max Min Mean Max BF Width (ft)-----9.82 - 11.26 ----- ----- ----- ----- ----- 17.0 ---- 19.30 21.34 23.7 Floodprone Width (ft)-----25.66 - 26.55 ----- ----- ----- ----- ----- 60 ---- 67.67 70.39 73.5 BF Mean Depth (ft)-----1.54 - 1.33 ----- ----- ----- ----- ----- 1.2 ---- 0.89 0.94 1.0 BF Max Depth (ft)-----2.77 ----- ----- ----- ----- ----- 1.4 ---- 1.42 1.73 2.1 BF Cross-sectional Area (ft²)-----15.16 - 15.01 ----- ----- ----- ----- ----- 20.4 ---- 18.86 19.76 21.1 Width/Depth Ratio -----6.38 - 8.47 ----- 10.00 12.50 15.00 ----- 14.2 ---- 19.69 23.05 26.6 Entrenchment Ratio -----2.61 - 2.36 ----- ----- ----- ----- ----- 3.5 ---- 3.10 3.31 3.5 Bank Height Ratio -----1.96 - 1.54 ----- 1.00 1.05 1.10 ----- 1.1 ---- 1.00 1.00 1.0 d50 (mm)---------- ---- ----- ----- ----- ----- ----- ----- ----- ----- Channel Beltwidth (ft) ----- N/A ----- ----- ---- ----- 65.00 ----- 135 47.0 56 72.0 Radius of Curvature (ft) ----- N/A ----- ----- ---- ----- 34.00 ----- 50 31.0 43 48.0 Rc/Bankfull width (ft/ft) ----- N/A ----- 2.00 2.50 3.0 2.00 ----- 2.9 1.8 3 2.8 Meander Wavelength (ft) ----- N/A ----- ----- ---- ----- 125.00 ----- 235 129.0 149 174.0 Meander Width Ratio ----- N/A ----- 3.50 5.75 8.0 3.80 ----- 7.9 2.8 3 4.2 Riffle Length (ft) ----- ----- ----- ----- ----- ----- ----- ----- ----- 6.71 34.705 64.44 Riffle Slope (ft/ft) 0.026 0.035 0.043 ----- ----- ----- 0.0075 0.0084 0.0093 -0.0460 0.0010 0.1070 Pool Length (ft) ----- ----- ----- ----- ----- ----- ----- ----- ----- 10.00 37.00 70.00 Pool to Pool Spacing (ft) 35 58 80 ----- ----- ----- 60.00 89.00 118.00 30.00 72.40 105.00 Pool Max Depth (ft)1.1 2.0 2.8 -------------1.8000 3.00 4.2000 0.00 0.00 0.00 SC% / Sa% / G% / C% / B%----- ----- ----- ----- ----- ----- d16 / d35 / d50 / d84 / d95 ----- ----- ----- ----- ----- ----- Drainage Area (SM) ----- 2.91 ----- ----- ----- ----- ----- 1.53 ----- ----- ---- ----- Impervious cover estimate (%) ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Rosgen Classification ----- F4 ----- ----- C4 ----- ----- C4 ----- ----- C4 ----- BF Velocity (fps) ----- ----- ----- 3.5 4.3 5.00 ----- 3.00 ----- ----- ---- ----- BF Discharge (cfs) ----- ----- ----- ----- ----- ----- ----- 61.85 ----- ----- ---- ----- Valley Length ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- 1,310 ----- Channel Length (ft) ----- 185 ----- ----- ----- ----- ----- 1,520 ----- ----- 1,555 ----- Sinuosity ----- 1.07 ----- 1.2 1.3 1.40 ----- 1.14 ----- ----- 1.1 ----- Water Surface Slope (Channel) (ft/ft)--------------------------------------------- Pattern Profile Additional Reach Parameters 0% / 1% / 91% / 8% / 0%0% / 7% / 92% / 1% / 0% 13 / 18 / 23 / 42 / 131 7 / 13 / 18 / 40 / 55 * The As-Built parameters shown here apply only to those surveyed sections of Reach UT4a where the channel was improved in its cross-section, profile, and in-stream structures. Substrate and Transport Parameters Pre-Existing Condition Reference Reach(es) Data Design As-built Composite Blair Creek Restoration Project: DMS Project No ID. 100047 Reach 2 (South Fork) Parameter Table 8. Baseline Stream Data Summary MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Dimension and Substrate - Riffle Min Mean Max Min Mean Max Min Mean Max Min Mean Max BF Width (ft)-----19.20 ----- ----- ----- ----- ----- 22.50 ---- ----- 30.40 ----- Floodprone Width (ft)---------- ----- ----- ----- ----- ----- 60.00 ----- ----- 58.48 ----- BF Mean Depth (ft)-----1.33 ----- ----- ----- ----- ----- ----- ----- 1.10 ----- BF Max Depth (ft)---------- ----- ----- ----- ----- ----- 1.80 ----- ----- 2.14 ----- BF Cross-sectional Area (ft²)-----25.6 ----- ----- ----- ----- ----- 33.8 ----- ----- 33.01 ----- Width/Depth Ratio -----14.44 ----- 10.00 12.50 15.00 ----- 15.00 ----- ----- 27.80 ----- Entrenchment Ratio ---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Bank Height Ratio -----2.00 ----- 1.00 1.05 1.10 ----- ----- ---- ----- ---- ----- d50 (mm)---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Channel Beltwidth (ft) ----- N/A ----- ----- ---- ----- ----- N/A ----- 43.00 46.00 50.00 Radius of Curvature (ft) ----- N/A ----- ----- ---- ----- ----- N/A ----- 33.00 40.00 46.00 Rc/Bankfull width (ft/ft) ----- N/A ----- 2.00 2.50 3.00 ----- N/A ----- 1.40 1.60 1.90 Meander Wavelength (ft) ----- N/A ----- ----- ---- ----- ----- N/A ----- 131.00 134.00 136.00 Meander Width Ratio ----- N/A ----- 3.50 5.75 8.00 ----- N/A ----- 1.80 1.90 2.10 Riffle Length (ft) ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Riffle Slope (ft/ft) ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Pool Length (ft) ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Pool to Pool Spacing (ft) ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Pool Max Depth (ft)----------------------------2.2500 3.75 5.2500 -------------- SC% / Sa% / G% / C% / B%---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- d16 / d35 / d50 / d84 / d95 -------------------------------------------- Drainage Area (SM)-----2.91 -------------------------2.91 ------------------- Impervious cover estimate (%)---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Rosgen Classification -----F4 ----- ----- C4 ----- ----- C4 ----- ----- C4 ----- BF Velocity (fps)---------- ----- 3.50 4.25 5.00 ----- 3.76 ----- ----- ---- ----- BF Discharge (cfs)---------- ----- ----- ----- ----- ----- 128.00 ----- ----- ---- ----- Valley Length ---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Channel Length (ft)-----185 ----- ----- ----- ----- ----- 185 ----- ----- 133.6 ----- Sinuosity -----1.07 ----- 1.20 1.30 1.40 ----- ----- ----- ----- 1.09 ----- Water Surface Slope (Channel) (ft/ft)---------- ----- ----- ----- ----- ----- ----- ----- ----- 1.02 ----- Additional Reach Parameters Pattern Profile Substrate and Transport Parameters Table 8. Baseline Stream Data Summary Blair Creek Restoration Project: DMS Project No ID. 100047 Reach 3 Blair Creek, below confluence of North and South Fork. Parameter Pre-Existing Condition Reference Reach(es) Data Design As-built Composite MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Dimension and Substrate - Riffle Min Mean Max Min Mean Max Min Mean Max Min Mean Max BF Width (ft)-----------------------------------7.25 ---------10.14 ----- Floodprone Width (ft)--------------------------------------------------34.30 ----- BF Mean Depth (ft)--------------------------------------------------0.81 ----- BF Max Depth (ft)-----------------------------------1.00 ----------1.53 ----- BF Cross-sectional Area (ft²)-----------------------------------4.30 ----------8.18 ----- Width/Depth Ratio -----------------------------------12.40 ------------------- Entrenchment Ratio ------------------------------------------------------ Bank Height Ratio ----------------------------------------------------- d50 (mm)----------------------------------------------------------- Channel Beltwidth (ft) ----- N/A ----- ----- ----- ----- ----- N/A ----- 15.00 17.00 18.00 Radius of Curvature (ft) ----- N/A ----- ----- ----- ----- ----- N/A ----- ---- ---- ---- Rc/Bankfull width (ft/ft) ----- N/A ----- ----- ----- ----- ----- N/A ----- 3.20 3.50 3.80 Meander Wavelength (ft) ----- N/A ----- ----- ----- ----- ----- N/A ----- 67.00 70.00 72.00 Meander Width Ratio ----- N/A ----- ----- ----- ----- ----- N/A ----- 3.20 3.50 3.80 Riffle Length (ft) ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Riffle Slope (ft/ft) ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Pool Length (ft) ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Pool to Pool Spacing (ft) ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Pool Max Depth (ft)--------------------------------------------------------- SC% / Sa% / G% / C% / B%---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- d16 / d35 / d50 / d84 / d95 ---------- ---------- ----- ----- ----- ---- ----- Drainage Area (SM)---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Impervious cover estimate (%)---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Rosgen Classification ---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- BF Velocity (fps)---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- BF Discharge (cfs)---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Valley Length ---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Channel Length (ft)---------- ----- ----- ----- ----- ----- ----- ----- ----- ---- ----- Sinuosity --------------------------------------------------173 ----- Water Surface Slope (Channel) (ft/ft)--------------------------------------------------1.02 ----- Pattern Profile Substrate and Transport Parameters Additional Reach Parameters Table 8. Baseline Stream Data Summary Blair Creek Restoration Project: DMS Project No ID. 100047 Reach UT1- *As Built data from pool XS Parameter Pre-Existing Condition Reference Reach(es) Data Design As-builtComposite MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Table 9. Cross-Section Morphology Data Summary Stream Reach Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Bankfull Elevation (ft) - Based on AB-Bankfull1 Area 1848.21 1848.21 1848.06 1848.33 1847.87 1847.87 1846.31 1846.43 Bank Height Ratio_Based on AB Bankfull1 Area -- --1.00 1.00 -- --1.00 1.10 Thalweg Elevation 1845.23 1845.85 1845.95 1846.01 1844.24 1843.62 1844.76 1844.94 LTOB2 Elevation 1848.21 1848.21 1848.06 1848.14 1847.87 1847.88 1846.31 1846.51 LTOB2 Max Depth (ft)2.98 2.40 2.11 2.00 3.63 4.25 1.60 1.40 LTOB2 Cross Sectional Area (ft2)25.48 22.60 20.85 16.70 38.37 34.27 17.90 16.00 Stream Reach Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Bankfull Elevation (ft) - Based on AB-Bankfull1 Area 1845.28 1845.26 1842.09 1842.09 1839.27 1839.34 1837.35 1837.35 Bank Height Ratio_Based on AB Bankfull1 Area 1.00 1.00 -- --1.00 1.00 ---- Thalweg Elevation 1843.48 1843.20 1838.86 1838.71 1837.37 1837.43 1832.31 1832.33 LTOB2 Elevation 1845.28 1845.25 1842.09 1842.09 1839.27 1839.42 1837.35 1837.35 LTOB2 Max Depth (ft)2.10 2.10 3.20 3.40 1.90 1.90 5.04 5.02 LTOB2 Cross Sectional Area (ft2)21.90 22.20 33.50 36.20 21.70 20.60 47.58 44.20 Stream Reach Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Bankfull Elevation (ft) - Based on AB-Bankfull1 Area 1845.99 1845.99 1843.54 1843.54 1841.94 1842.30 1839.98 1839.98 Bank Height Ratio_Based on AB Bankfull1 Area --------1.00 1.00 ---- Thalweg Elevation 1844.76 1843.85 1839.97 1839.88 1839.88 1840.46 1836.55 1836.85 LTOB2 Elevation 1845.99 1846.25 1843.54 1843.54 1841.94 1842.23 1839.88 1839.98 LTOB2 Max Depth (ft)1.20 2.10 3.57 3.66 2.06 1.50 3.43 3.13 LTOB2 Cross Sectional Area (ft2)5.60 4.80 36.81 33.46 23.70 14.10 36.69 27.28 Stream Reach Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Base MY1 MY2 MY3 MY4 MY5 MY+ Bankfull Elevation (ft) - Based on AB-Bankfull1 Area 1838.84 1839.07 1837.60 1837.26 1834.80 1834.73 Bank Height Ratio_Based on AB Bankfull1 Area 1.00 0.90 1.00 1.00 1.00 1.00 Thalweg Elevation 1837.14 1837.54 1836.18 1835.42 1832.66 1832.56 LTOB2 Elevation 1838.84 1838.92 1837.60 1837.25 1834.80 1834.80 LTOB2 Max Depth (ft)1.70 1.30 1.40 2.20 2.14 2.20 LTOB2 Cross Sectional Area (ft2)21.13 16.00 18.90 25.20 33.01 34.90 Blair Creek Restoration Project: DMS Project No ID. 100047 Reach 1 UT-1 Reach 2 Cross-section X-9 (Pool) Cross-section X-1 (Pool)Cross-section X-2 (Riffle)Cross-section X-3 (Pool)Cross-section X-4 (Riffle) Reach 1 Cross-section X-5 (Riffle)Cross-section X-6 (Pool)Cross-section X-7 (Riffle)Cross-section X-8 (Pool) Cross-section X-10 (Pool)Cross-section X-11 (Riffle)Cross-section X-12 (Pool) Reach 2 Reach 3 Note: The smaller the channel the closer the survey measurements are to their limit of reliable detection, therefore inter-annual variation in morphological measurement (as a percentage) is by default magnified as channel size decereases. Some of the variability above is the result of this factor and some is due to the large amount of depositional sediments observed. Cross-section X-13 (Riffle)Cross-section X-14 (Riffle)Cross-section X-15 (Riffle) The above morphology parameters reflect the 2018 guidance that arose from the mitigation technical workgroup consisting of DMS, the IRT and industrymitigation providers/practitioners. The outcome resulted in the focus on three primary morphological parameters of interest for the purposes of tracking channel change moving forward. They are the bank height ratio using a constant As-built bankfull area and the cross sectional area and max depth based on each years low top of bank. These are calculated as follows: 1 - Bank Height Ratio (BHR) takes the As-built bankful area as the basis for adjusting each subsequent years bankfull elevation. For example if the As-built bankfull area was 10 ft2, then the MY1 bankfull elevation would be adjusted until the calculated bankfull area within the MY1 cross section survey = 10 ft2. The BHR would then be calculated with the difference between the low top of bank (LTOB) elevation for MY1 and the thalweg elevation for MY1 in the numerator with the difference between the MY1 bankfull elevation and the MY1 thalweg elevation in the denominator. This same process is then carried out in each successive year. 2 -LTOB Area and Max depth -These are based on the LTOB elevation for each years survey (The same elevation used for the LTOB in the BHR calculation). Areabelow the LTOB elevation will be used and tracked for each year as above. The difference between the LTOB elevation and the thalweg elevation (same as in the BHR calculation) will be recroded and tracked above as LTOB max depth. MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT APPENDIX E Hydrologic Data Date of Data Collection Reach 1 Lower Right Floodplain Crest Gauge 3. Reach 2, Left Floodplain Estimated Date of Bankfull Event Occurrence Method of Data Collection 7/1/2022 Photographic Evidence on right floodplain of Lower R1 and Left floodplain of R2 at Crest Gauge 3. 3/13/2022 Photographic Evidence 11/22/2022 Photographic Evidence on floodplain and Continuous Logger Data 3/13/2022 & 8/7/2022 Photographic Evidence & Continuous Logger Table 10. Verification of Bankfull Events Blair Creek Mitigation Project - NCDMS Project No. 100047 Year 1 Monitoring (2022) Note: Crest gauge readings were corroborated with associated spikes in the automated Continuous Stage Recorder (see graph in Below) and/or with photographs (Appendix B). -20.00 -19.00 -18.00 -17.00 -16.00 -15.00 -14.00 -13.00 -12.00 -11.00 -10.00 -9.00 -8.00 -7.00 -6.00 -5.00 -4.00 -3.00 -2.00 -1.00 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12/30/2021 2/13/2022 3/30/2022 5/14/2022 6/28/2022 8/12/2022 9/26/2022 11/10/2022 Su r f a c e W a t e r D e p t h ( f t . ) Date Blair CreekCrest Gauge #1 Reach 1 at Station 15+00.25 Bankfull Elevation Crest Gauge #1 Data BankfullElevation at Station 15+00.25 = 1848.17' MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT -1.00 -0.50 0.00 0.50 1.00 12/30/2021 2/13/2022 3/30/2022 5/14/2022 6/28/2022 8/12/2022 9/26/2022 11/10/2022 Su r f a c e W a t e r D e p t h ( f t . ) Date Blair Creek Crest Gauge #2 at Confluence Reach 1 & 2 Bankfull Elevation Crest Gauge #2 Data BankfullElevation at Station 36+47.39 = 1836.29' -1.00 -0.50 0.00 0.50 1.00 1.50 2.00 12/30/2021 2/13/2022 3/30/2022 5/14/2022 6/28/2022 8/12/2022 9/26/2022 11/10/2022 Su r f a c e W a t e r D e p t h ( f t . ) Date Blair Creek Crest Gauge #3 Reach 2 at Station 12+47.64 Bankfull Elevation Crest Gauge #3 Data Bankfull Elevation at Station 12+47.64 = 1843.21'Overbank Events on 3/13/22 and 8/7/22 MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Figure 5. Wetland Monitoring Well Graphs -30 -25 -20 -15 -10 -5 0 5 10 15 20 1/1/2022 2/15/2022 4/1/2022 5/16/2022 6/30/2022 8/14/2022 9/28/2022 11/12/2022 12/27/2022 De p t h t o G r o u n d w a t e r ( i n ) Date Blair Creek Wetland Monitoring Well #1 (Well BCW1) -12 inches Begin Growing Season End Growing Season BCW1 Longest Hydroperiod of 56 days (27%): 7/3/2022 - 8/26/2022 12% of 211 days = 25 days GROWING SEASON (4/2 - 11/2) 0 1 2 3 1/ 1 / 2 0 2 … 1/ 8 / 2 0 2 … 1/ 1 5 / 2 0 … 1/ 2 2 / 2 0 … 1/ 2 9 / 2 0 … 2/ 5 / 2 0 2 … 2/ 1 2 / 2 0 … 2/ 1 9 / 2 0 … 2/ 2 6 / 2 0 … 3/ 5 / 2 0 2 … 3/ 1 2 / 2 0 … 3/ 1 9 / 2 0 … 3/ 2 6 / 2 0 … 4/ 2 / 2 0 2 … 4/ 9 / 2 0 2 … 4/ 1 6 / 2 0 … 4/ 2 3 / 2 0 … 4/ 3 0 / 2 0 … 5/ 7 / 2 0 2 … 5/ 1 4 / 2 0 … 5/ 2 1 / 2 0 … 5/ 2 8 / 2 0 … 6/ 4 / 2 0 2 … 6/ 1 1 / 2 0 … 6/ 1 8 / 2 0 … 6/ 2 5 / 2 0 … 7/ 2 / 2 0 2 … 7/ 9 / 2 0 2 … 7/ 1 6 / 2 0 … 7/ 2 3 / 2 0 … 7/ 3 0 / 2 0 … 8/ 6 / 2 0 2 … 8/ 1 3 / 2 0 … 8/ 2 0 / 2 0 … 8/ 2 7 / 2 0 … 9/ 3 / 2 0 2 … 9/ 1 0 / 2 0 … 9/ 1 7 / 2 0 … 9/ 2 4 / 2 0 … 10 / 1 / 2 0 … 10 / 8 / 2 0 … 10 / 1 5 / 2 … 10 / 2 2 / 2 … 10 / 2 9 / 2 … 11 / 5 / 2 0 … 11 / 1 2 / 2 … 11 / 1 9 / 2 … 11 / 2 6 / 2 … Blair Creek Rain 2022 MICHAEL BAKER ENGINEERING, INC. YEAR 1 MONITORING REPORT BLAIR CREEK MITIGATION PROJECT (DMS PROJECT NO. 100047) Figure 5. Wetland Monitoring Well Graphs -30 -25 -20 -15 -10 -5 0 5 10 15 20 1/1/2022 2/15/2022 4/1/2022 5/16/2022 6/30/2022 8/14/2022 9/28/2022 11/12/2022 12/27/2022 De p t h t o G r o u n d w a t e r ( i n ) Date Blair Creek Wetland Monitoring Well #2 (Well BCW2) -12 inches Begin Growing Season End Growing Season BCW2 Longest Hydroperiod of 54 days (26%): 5/23/2022 - 7/15/2022 12% of 211 days = 25 days 0 1 2 3 1/ 1 / 2 0 2 … 1/ 8 / 2 0 2 … 1/ 1 5 / 2 0 … 1/ 2 2 / 2 0 … 1/ 2 9 / 2 0 … 2/ 5 / 2 0 2 … 2/ 1 2 / 2 0 … 2/ 1 9 / 2 0 … 2/ 2 6 / 2 0 … 3/ 5 / 2 0 2 … 3/ 1 2 / 2 0 … 3/ 1 9 / 2 0 … 3/ 2 6 / 2 0 … 4/ 2 / 2 0 2 … 4/ 9 / 2 0 2 … 4/ 1 6 / 2 0 … 4/ 2 3 / 2 0 … 4/ 3 0 / 2 0 … 5/ 7 / 2 0 2 … 5/ 1 4 / 2 0 … 5/ 2 1 / 2 0 … 5/ 2 8 / 2 0 … 6/ 4 / 2 0 2 … 6/ 1 1 / 2 0 … 6/ 1 8 / 2 0 … 6/ 2 5 / 2 0 … 7/ 2 / 2 0 2 … 7/ 9 / 2 0 2 … 7/ 1 6 / 2 0 … 7/ 2 3 / 2 0 … 7/ 3 0 / 2 0 … 8/ 6 / 2 0 2 … 8/ 1 3 / 2 0 … 8/ 2 0 / 2 0 … 8/ 2 7 / 2 0 … 9/ 3 / 2 0 2 … 9/ 1 0 / 2 0 … 9/ 1 7 / 2 0 … 9/ 2 4 / 2 0 … 10 / 1 / 2 0 … 10 / 8 / 2 0 … 10 / 1 5 / 2 … 10 / 2 2 / 2 … 10 / 2 9 / 2 … 11 / 5 / 2 0 … 11 / 1 2 / 2 … 11 / 1 9 / 2 … 11 / 2 6 / 2 … Blair Creek Rain 2022 GROWING SEASON (4/2 - 11/2) MICHAEL BAKER ENGINEERING, INC. YEAR 1 MONITORING REPORT BLAIR CREEK MITIGATION PROJECT (DMS PROJECT NO. 100047) Figure 5. Wetland Monitoring Well Graphs -30 -25 -20 -15 -10 -5 0 5 10 15 20 1/1/2022 2/15/2022 4/1/2022 5/16/2022 6/30/2022 8/14/2022 9/28/2022 11/12/2022 12/27/2022 De p t h t o G r o u n d w a t e r ( i n ) Date Blair Creek Wetland Monitoring Well #3 (Well BCW3) -12 inches Begin Growing Season End Growing Season BCWW3 Longest Hydroperiod of 27 days (13%): 4/2/2022 - 4/28/2022 12% of 211 days = 25 days 0 1 2 3 1/ 1 / 2 0 2 … 1/ 8 / 2 0 2 … 1/ 1 5 / 2 0 … 1/ 2 2 / 2 0 … 1/ 2 9 / 2 0 … 2/ 5 / 2 0 2 … 2/ 1 2 / 2 0 … 2/ 1 9 / 2 0 … 2/ 2 6 / 2 0 … 3/ 5 / 2 0 2 … 3/ 1 2 / 2 0 … 3/ 1 9 / 2 0 … 3/ 2 6 / 2 0 … 4/ 2 / 2 0 2 … 4/ 9 / 2 0 2 … 4/ 1 6 / 2 0 … 4/ 2 3 / 2 0 … 4/ 3 0 / 2 0 … 5/ 7 / 2 0 2 … 5/ 1 4 / 2 0 … 5/ 2 1 / 2 0 … 5/ 2 8 / 2 0 … 6/ 4 / 2 0 2 … 6/ 1 1 / 2 0 … 6/ 1 8 / 2 0 … 6/ 2 5 / 2 0 … 7/ 2 / 2 0 2 … 7/ 9 / 2 0 2 … 7/ 1 6 / 2 0 … 7/ 2 3 / 2 0 … 7/ 3 0 / 2 0 … 8/ 6 / 2 0 2 … 8/ 1 3 / 2 0 … 8/ 2 0 / 2 0 … 8/ 2 7 / 2 0 … 9/ 3 / 2 0 2 … 9/ 1 0 / 2 0 … 9/ 1 7 / 2 0 … 9/ 2 4 / 2 0 … 10 / 1 / 2 0 … 10 / 8 / 2 0 … 10 / 1 5 / 2 … 10 / 2 2 / 2 … 10 / 2 9 / 2 … 11 / 5 / 2 0 … 11 / 1 2 / 2 … 11 / 1 9 / 2 … 11 / 2 6 / 2 … Blair Creek Rain 2022 GROWING SEASON (4/2 - 11/2) MICHAEL BAKER ENGINEERING, INC. YEAR 1 MONITORING REPORT BLAIR CREEK MITIGATION PROJECT (DMS PROJECT NO. 100047) Figure 5. Wetland Monitoring Well Graphs -20 -15 -10 -5 0 5 10 15 20 1/1/2022 2/15/2022 4/1/2022 5/16/2022 6/30/2022 8/14/2022 9/28/2022 11/12/2022 12/27/2022 De p t h t o G r o u n d w a t e r ( i n ) Date Blair Creek Wetland Monitoring Well #4 (Well BCWW4) -12 inches Begin Growing Season End Growing Season BCW4 Longest Hydroperiod of days 22 (10%): 4/2/2022 - 4/43/2022 12% of 211 days = 25 days 0 1 2 3 1/ 1 / 2 0 2 … 1/ 8 / 2 0 2 … 1/ 1 5 / 2 0 … 1/ 2 2 / 2 0 … 1/ 2 9 / 2 0 … 2/ 5 / 2 0 2 … 2/ 1 2 / 2 0 … 2/ 1 9 / 2 0 … 2/ 2 6 / 2 0 … 3/ 5 / 2 0 2 … 3/ 1 2 / 2 0 … 3/ 1 9 / 2 0 … 3/ 2 6 / 2 0 … 4/ 2 / 2 0 2 … 4/ 9 / 2 0 2 … 4/ 1 6 / 2 0 … 4/ 2 3 / 2 0 … 4/ 3 0 / 2 0 … 5/ 7 / 2 0 2 … 5/ 1 4 / 2 0 … 5/ 2 1 / 2 0 … 5/ 2 8 / 2 0 … 6/ 4 / 2 0 2 … 6/ 1 1 / 2 0 … 6/ 1 8 / 2 0 … 6/ 2 5 / 2 0 … 7/ 2 / 2 0 2 … 7/ 9 / 2 0 2 … 7/ 1 6 / 2 0 … 7/ 2 3 / 2 0 … 7/ 3 0 / 2 0 … 8/ 6 / 2 0 2 … 8/ 1 3 / 2 0 … 8/ 2 0 / 2 0 … 8/ 2 7 / 2 0 … 9/ 3 / 2 0 2 … 9/ 1 0 / 2 0 … 9/ 1 7 / 2 0 … 9/ 2 4 / 2 0 … 10 / 1 / 2 0 … 10 / 8 / 2 0 … 10 / 1 5 / 2 … 10 / 2 2 / 2 … 10 / 2 9 / 2 … 11 / 5 / 2 0 … 11 / 1 2 / 2 … 11 / 1 9 / 2 … 11 / 2 6 / 2 … Blair Creek Rain 2022 GROWINGSEASON (4/2 - 11/2) MICHAEL BAKER ENGINEERING, INC. YEAR 1 MONITORING REPORT BLAIR CREEK MITIGATION PROJECT (DMS PROJECT NO. 100047) Figure 5. Wetland Monitoring Well Graphs -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 1/1/2022 2/15/2022 4/1/2022 5/16/2022 6/30/2022 8/14/2022 9/28/2022 11/12/2022 12/27/2022 De p t h t o G r o u n d w a t e r ( i n ) Date Blair Creek Wetland Monitoring Well #5 (Well BCW5) -12 inches Begin Growing Season End Growing Season BCW5 Longest Hydroperiod of 22 days (10%): 4/2/2022 - 4/23/2022 12% of 211 days = 25 days 0 1 2 3 1/ 1 / 2 0 2 … 1/ 8 / 2 0 2 … 1/ 1 5 / 2 0 … 1/ 2 2 / 2 0 … 1/ 2 9 / 2 0 … 2/ 5 / 2 0 2 … 2/ 1 2 / 2 0 … 2/ 1 9 / 2 0 … 2/ 2 6 / 2 0 … 3/ 5 / 2 0 2 … 3/ 1 2 / 2 0 … 3/ 1 9 / 2 0 … 3/ 2 6 / 2 0 … 4/ 2 / 2 0 2 … 4/ 9 / 2 0 2 … 4/ 1 6 / 2 0 … 4/ 2 3 / 2 0 … 4/ 3 0 / 2 0 … 5/ 7 / 2 0 2 … 5/ 1 4 / 2 0 … 5/ 2 1 / 2 0 … 5/ 2 8 / 2 0 … 6/ 4 / 2 0 2 … 6/ 1 1 / 2 0 … 6/ 1 8 / 2 0 … 6/ 2 5 / 2 0 … 7/ 2 / 2 0 2 … 7/ 9 / 2 0 2 … 7/ 1 6 / 2 0 … 7/ 2 3 / 2 0 … 7/ 3 0 / 2 0 … 8/ 6 / 2 0 2 … 8/ 1 3 / 2 0 … 8/ 2 0 / 2 0 … 8/ 2 7 / 2 0 … 9/ 3 / 2 0 2 … 9/ 1 0 / 2 0 … 9/ 1 7 / 2 0 … 9/ 2 4 / 2 0 … 10 / 1 / 2 0 … 10 / 8 / 2 0 … 10 / 1 5 / 2 … 10 / 2 2 / 2 … 10 / 2 9 / 2 … 11 / 5 / 2 0 … 11 / 1 2 / 2 … 11 / 1 9 / 2 … 11 / 2 6 / 2 … Blair Creek Rain 2022 GROWING SEASON (4/2 - 11/2) MICHAEL BAKER ENGINEERING, INC. YEAR 1 MONITORING REPORT BLAIR CREEK MITIGATION PROJECT (DMS PROJECT NO. 100047) Figure 5. Wetland Monitoring Well Graphs -30 -25 -20 -15 -10 -5 0 5 10 15 20 1/1/2022 2/15/2022 4/1/2022 5/16/2022 6/30/2022 8/14/2022 9/28/2022 11/12/2022 12/27/2022 De p t h t o G r o u n d w a t e r ( i n ) Date Blair Creek Wetland Monitoring Well #6 (Well BCW6) -12 inches Begin Growing Season End Growing Season BCW6 Longest Hydroperiod of 92 days (44%): 6/28/2022 - 9/27/2022 12% of 211 days = 25 days 0 1 2 3 1/ 1 / 2 0 2 … 1/ 8 / 2 0 2 … 1/ 1 5 / 2 0 … 1/ 2 2 / 2 0 … 1/ 2 9 / 2 0 … 2/ 5 / 2 0 2 … 2/ 1 2 / 2 0 … 2/ 1 9 / 2 0 … 2/ 2 6 / 2 0 … 3/ 5 / 2 0 2 … 3/ 1 2 / 2 0 … 3/ 1 9 / 2 0 … 3/ 2 6 / 2 0 … 4/ 2 / 2 0 2 … 4/ 9 / 2 0 2 … 4/ 1 6 / 2 0 … 4/ 2 3 / 2 0 … 4/ 3 0 / 2 0 … 5/ 7 / 2 0 2 … 5/ 1 4 / 2 0 … 5/ 2 1 / 2 0 … 5/ 2 8 / 2 0 … 6/ 4 / 2 0 2 … 6/ 1 1 / 2 0 … 6/ 1 8 / 2 0 … 6/ 2 5 / 2 0 … 7/ 2 / 2 0 2 … 7/ 9 / 2 0 2 … 7/ 1 6 / 2 0 … 7/ 2 3 / 2 0 … 7/ 3 0 / 2 0 … 8/ 6 / 2 0 2 … 8/ 1 3 / 2 0 … 8/ 2 0 / 2 0 … 8/ 2 7 / 2 0 … 9/ 3 / 2 0 2 … 9/ 1 0 / 2 0 … 9/ 1 7 / 2 0 … 9/ 2 4 / 2 0 … 10 / 1 / 2 0 … 10 / 8 / 2 0 … 10 / 1 5 / 2 … 10 / 2 2 / 2 … 10 / 2 9 / 2 … 11 / 5 / 2 0 … 11 / 1 2 / 2 … 11 / 1 9 / 2 … 11 / 2 6 / 2 … Blair Creek Rain 2022 GROWINGSEASON (4/2 - 11/2) MICHAEL BAKER ENGINEERING, INC. YEAR 1 MONITORING REPORT BLAIR CREEK MITIGATION PROJECT (DMS PROJECT NO. 100047) Figure 5. Wetland Monitoring Well Graphs -30 -25 -20 -15 -10 -5 0 5 10 15 20 1/1/2022 2/15/2022 4/1/2022 5/16/2022 6/30/2022 8/14/2022 9/28/2022 11/12/2022 12/27/2022 De p t h t o G r o u n d w a t e r ( i n ) Date Blair Creek Wetland Monitoring Well #7 (Well BCW7) -12 inches Begin Growing Season End Growing Season BCW7 Longest Hydroperiod of 24 days (11%): 3/28/2022- 4/25/2022 12% of 211 days = 25 days 0 1 2 3 1/ 1 / 2 0 2 … 1/ 8 / 2 0 2 … 1/ 1 5 / 2 0 … 1/ 2 2 / 2 0 … 1/ 2 9 / 2 0 … 2/ 5 / 2 0 2 … 2/ 1 2 / 2 0 … 2/ 1 9 / 2 0 … 2/ 2 6 / 2 0 … 3/ 5 / 2 0 2 … 3/ 1 2 / 2 0 … 3/ 1 9 / 2 0 … 3/ 2 6 / 2 0 … 4/ 2 / 2 0 2 … 4/ 9 / 2 0 2 … 4/ 1 6 / 2 0 … 4/ 2 3 / 2 0 … 4/ 3 0 / 2 0 … 5/ 7 / 2 0 2 … 5/ 1 4 / 2 0 … 5/ 2 1 / 2 0 … 5/ 2 8 / 2 0 … 6/ 4 / 2 0 2 … 6/ 1 1 / 2 0 … 6/ 1 8 / 2 0 … 6/ 2 5 / 2 0 … 7/ 2 / 2 0 2 … 7/ 9 / 2 0 2 … 7/ 1 6 / 2 0 … 7/ 2 3 / 2 0 … 7/ 3 0 / 2 0 … 8/ 6 / 2 0 2 … 8/ 1 3 / 2 0 … 8/ 2 0 / 2 0 … 8/ 2 7 / 2 0 … 9/ 3 / 2 0 2 … 9/ 1 0 / 2 0 … 9/ 1 7 / 2 0 … 9/ 2 4 / 2 0 … 10 / 1 / 2 0 … 10 / 8 / 2 0 … 10 / 1 5 / 2 … 10 / 2 2 / 2 … 10 / 2 9 / 2 … 11 / 5 / 2 0 … 11 / 1 2 / 2 … 11 / 1 9 / 2 … 11 / 2 6 / 2 … Blair Creek Rain 2022 GROWING SEASON (4/2 - 11/2) MICHAEL BAKER ENGINEERING, INC. YEAR 1 MONITORING REPORT BLAIR CREEK MITIGATION PROJECT (DMS PROJECT NO. 100047) Figure 5. Wetland Monitoring Well Graphs -30 -25 -20 -15 -10 -5 0 5 10 15 20 1/1/2022 2/15/2022 4/1/2022 5/16/2022 6/30/2022 8/14/2022 9/28/2022 11/12/2022 12/27/2022 De p t h t o G r o u n d w a t e r ( i n ) Date Blair Creek Wetland Monitoring Well #8 (Well BCW8) -12 inches Begin Growing Season End Growing Season BCW8 Longest Hydroperiod of 9 days (4%): 7/27/2022 - 8/4/2022 12% of 211 days = 25 days 0 1 2 3 1/ 1 / 2 0 2 … 1/ 8 / 2 0 2 … 1/ 1 5 / 2 0 … 1/ 2 2 / 2 0 … 1/ 2 9 / 2 0 … 2/ 5 / 2 0 2 … 2/ 1 2 / 2 0 … 2/ 1 9 / 2 0 … 2/ 2 6 / 2 0 … 3/ 5 / 2 0 2 … 3/ 1 2 / 2 0 … 3/ 1 9 / 2 0 … 3/ 2 6 / 2 0 … 4/ 2 / 2 0 2 … 4/ 9 / 2 0 2 … 4/ 1 6 / 2 0 … 4/ 2 3 / 2 0 … 4/ 3 0 / 2 0 … 5/ 7 / 2 0 2 … 5/ 1 4 / 2 0 … 5/ 2 1 / 2 0 … 5/ 2 8 / 2 0 … 6/ 4 / 2 0 2 … 6/ 1 1 / 2 0 … 6/ 1 8 / 2 0 … 6/ 2 5 / 2 0 … 7/ 2 / 2 0 2 … 7/ 9 / 2 0 2 … 7/ 1 6 / 2 0 … 7/ 2 3 / 2 0 … 7/ 3 0 / 2 0 … 8/ 6 / 2 0 2 … 8/ 1 3 / 2 0 … 8/ 2 0 / 2 0 … 8/ 2 7 / 2 0 … 9/ 3 / 2 0 2 … 9/ 1 0 / 2 0 … 9/ 1 7 / 2 0 … 9/ 2 4 / 2 0 … 10 / 1 / 2 0 … 10 / 8 / 2 0 … 10 / 1 5 / 2 … 10 / 2 2 / 2 … 10 / 2 9 / 2 … 11 / 5 / 2 0 … 11 / 1 2 / 2 … 11 / 1 9 / 2 … 11 / 2 6 / 2 … Blair Creek Rain 2022 GROWING SEASON (4/2 - 11/2) MICHAEL BAKER ENGINEERING, INC. YEAR 1 MONITORING REPORT BLAIR CREEK MITIGATION PROJECT (DMS PROJECT NO. 100047) Figure 5. Wetland Monitoring Well Graphs -30 -25 -20 -15 -10 -5 0 5 10 15 20 1/1/2022 2/15/2022 4/1/2022 5/16/2022 6/30/2022 8/14/2022 9/28/2022 11/12/2022 12/27/2022 De p t h t o G r o u n d w a t e r ( i n ) Date Blair Creek Wetland Monitoring Well #9 (Well BCW9) -12 inches Begin Growing Season End Growing Season BCW9 Longest Hydroperiod of days 23 (11%): 4/2/2022 - 4/24/2022 12% of 211 days = 25 days 0 1 2 3 1/ 1 / 2 0 2 … 1/ 8 / 2 0 2 … 1/ 1 5 / 2 0 … 1/ 2 2 / 2 0 … 1/ 2 9 / 2 0 … 2/ 5 / 2 0 2 … 2/ 1 2 / 2 0 … 2/ 1 9 / 2 0 … 2/ 2 6 / 2 0 … 3/ 5 / 2 0 2 … 3/ 1 2 / 2 0 … 3/ 1 9 / 2 0 … 3/ 2 6 / 2 0 … 4/ 2 / 2 0 2 … 4/ 9 / 2 0 2 … 4/ 1 6 / 2 0 … 4/ 2 3 / 2 0 … 4/ 3 0 / 2 0 … 5/ 7 / 2 0 2 … 5/ 1 4 / 2 0 … 5/ 2 1 / 2 0 … 5/ 2 8 / 2 0 … 6/ 4 / 2 0 2 … 6/ 1 1 / 2 0 … 6/ 1 8 / 2 0 … 6/ 2 5 / 2 0 … 7/ 2 / 2 0 2 … 7/ 9 / 2 0 2 … 7/ 1 6 / 2 0 … 7/ 2 3 / 2 0 … 7/ 3 0 / 2 0 … 8/ 6 / 2 0 2 … 8/ 1 3 / 2 0 … 8/ 2 0 / 2 0 … 8/ 2 7 / 2 0 … 9/ 3 / 2 0 2 … 9/ 1 0 / 2 0 … 9/ 1 7 / 2 0 … 9/ 2 4 / 2 0 … 10 / 1 / 2 0 … 10 / 8 / 2 0 … 10 / 1 5 / 2 … 10 / 2 2 / 2 … 10 / 2 9 / 2 … 11 / 5 / 2 0 … 11 / 1 2 / 2 … 11 / 1 9 / 2 … 11 / 2 6 / 2 … Blair Creek Rain 2022 GROWING SEASON (4/2 - 11/2) MICHAEL BAKER ENGINEERING, INC. YEAR 1 MONITORING REPORT BLAIR CREEK MITIGATION PROJECT (DMS PROJECT NO. 100047) Figure 5. Wetland Monitoring Well Graphs -20 -15 -10 -5 0 5 10 15 20 1/1/2022 2/15/2022 4/1/2022 5/16/2022 6/30/2022 8/14/2022 9/28/2022 11/12/2022 12/27/2022 De p t h t o G r o u n d w a t e r ( i n ) Date Blair Creek Wetland Monitoring Well #10 (Well BCW10) -12 inches Begin Growing Season End Growing Season BCW10 Longest Hydroperiod of 24 days (11%): 7/27/2022 - 8/16/2022 12% of 211 days = 25 days 0 1 2 3 1/ 1 / 2 0 2 … 1/ 8 / 2 0 2 … 1/ 1 5 / 2 0 … 1/ 2 2 / 2 0 … 1/ 2 9 / 2 0 … 2/ 5 / 2 0 2 … 2/ 1 2 / 2 0 … 2/ 1 9 / 2 0 … 2/ 2 6 / 2 0 … 3/ 5 / 2 0 2 … 3/ 1 2 / 2 0 … 3/ 1 9 / 2 0 … 3/ 2 6 / 2 0 … 4/ 2 / 2 0 2 … 4/ 9 / 2 0 2 … 4/ 1 6 / 2 0 … 4/ 2 3 / 2 0 … 4/ 3 0 / 2 0 … 5/ 7 / 2 0 2 … 5/ 1 4 / 2 0 … 5/ 2 1 / 2 0 … 5/ 2 8 / 2 0 … 6/ 4 / 2 0 2 … 6/ 1 1 / 2 0 … 6/ 1 8 / 2 0 … 6/ 2 5 / 2 0 … 7/ 2 / 2 0 2 … 7/ 9 / 2 0 2 … 7/ 1 6 / 2 0 … 7/ 2 3 / 2 0 … 7/ 3 0 / 2 0 … 8/ 6 / 2 0 2 … 8/ 1 3 / 2 0 … 8/ 2 0 / 2 0 … 8/ 2 7 / 2 0 … 9/ 3 / 2 0 2 … 9/ 1 0 / 2 0 … 9/ 1 7 / 2 0 … 9/ 2 4 / 2 0 … 10 / 1 / 2 0 … 10 / 8 / 2 0 … 10 / 1 5 / 2 … 10 / 2 2 / 2 … 10 / 2 9 / 2 … 11 / 5 / 2 0 … 11 / 1 2 / 2 … 11 / 1 9 / 2 … 11 / 2 6 / 2 … Blair Creek Rain 2022 GROWING SEASON (4/2 - 11/2) MICHAEL BAKER ENGINEERING, INC. YEAR 1 MONITORING REPORT BLAIR CREEK MITIGATION PROJECT (DMS PROJECT NO. 100047) Year 1 (2022) Year 2 (2023) Year 3 (2024) Year 4 (2025) Year 5 (2026) Year 6 (2027) Year 8 (2028) Year 1 (2022) Year 2 (2023) Year 3 (2024) Year 4 (2025) Year 5 (2026) Year 6 (2027) Year 8 (2028) Year 1 (2022) Year 2 (2023) Year 3 (2024) Year 4 (2025) Year 5 (2026) Year 6 (2027) Year 8 (2028) Year 1 (2022) Year 2 (2023) Year 3 (2024) Year 4 (2025) Year 5 (2026) Year 6 (2027) Year 8 (2028) BCW1 27.0 56 82.0 172 BCW2 26.0 54 68.0 144 BCW3 13.0 27 43.0 90 BCW4 10.0 22 38.0 80 BCW5 10.0 22 30.0 63 BCW6 44.0 92 47.0 199 BCW7 11.0 24 30.0 63 BCW8 4.0 9 17.0 35 BCW9 11.0 23 41.0 87 BCW10 11.0 24 38.0 81 Table 11. Wetland Hydrology Summary Data Blair Creek Stream Mitigation Project - NCDMS Project No. 100047 Percentage of Cumulative Days <12 inches from Ground Surface Cumulative Days Meeting Criteria³ Wetland Monitoring Wells (Installed December 2021) ¹Indicates the percentage of the single greatest consecutive number of days within the monitored growing season with a water table 12 inches or less from the soil surface. ²Indicates the single greatest consecutive number of days within the monitored growing season with a water table 12 inches or less from the soil surface. ³Indicates the total number of days within the monitored growing season with a water table 12 inches or less from the soil surface. Growing season for Clay County is from April 2 to October 29 and is 211 days long. 12% of the growing season is 25 days. Well ID Percentage of Consecutive Days <12 inches from Ground Surface¹ Most Consecutive Days Meeting Criteria² MICHAEL BAKER ENGINEERING, INC. YEAR 1 MONITORING REPORT BLAIR CREEK MITIGATION PROJECT (DMS PROJECT NO. 100047) Figure 6: Flow Gauge Graphs Rain data from the State Climate Office of NC Legacy data. *Surface water flow is estimated to have occurred when the pressure transducer reading is equal to or above 0.05 feet in depth. -5.00 -4.00 -3.00 -2.00 -1.00 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 1/2/2022 2/16/2022 4/2/2022 5/17/2022 7/1/2022 8/15/2022 9/29/2022 11/13/2022 Su r f a c e W a t e r D e p t h ( f t . ) Date Blair Creek In-channel Flow Gauge 1 - UT1 Min Flow - 0.05 Feet Manual BC Flow YR1 MOST CONSECUTIVE DAYS CRITERIA MET -259 (1/4/2022 - 6/27/2022) 0 0.5 1 1.5 2 2.5 3 3.5 1/ 1 / 2 0 2 2 … 1/ 8 / 2 0 2 2 … 1/ 1 5 / 2 0 2 2 … 1/ 2 2 / 2 0 2 2 … 1/ 2 9 / 2 0 2 2 … 2/ 5 / 2 0 2 2 … 2/ 1 2 / 2 0 2 2 … 2/ 1 9 / 2 0 2 2 … 2/ 2 6 / 2 0 2 2 … 3/ 5 / 2 0 2 2 … 3/ 1 2 / 2 0 2 2 … 3/ 1 9 / 2 0 2 2 … 3/ 2 6 / 2 0 2 2 … 4/ 2 / 2 0 2 2 … 4/ 9 / 2 0 2 2 … 4/ 1 6 / 2 0 2 2 … 4/ 2 3 / 2 0 2 2 … 4/ 3 0 / 2 0 2 2 … 5/ 7 / 2 0 2 2 … 5/ 1 4 / 2 0 2 2 … 5/ 2 1 / 2 0 2 2 … 5/ 2 8 / 2 0 2 2 … 6/ 4 / 2 0 2 2 … 6/ 1 1 / 2 0 2 2 … 6/ 1 8 / 2 0 2 2 … 6/ 2 5 / 2 0 2 2 … 7/ 2 / 2 0 2 2 … 7/ 9 / 2 0 2 2 … 7/ 1 6 / 2 0 2 2 … 7/ 2 3 / 2 0 2 2 … 7/ 3 0 / 2 0 2 2 … 8/ 6 / 2 0 2 2 … 8/ 1 3 / 2 0 2 2 … 8/ 2 0 / 2 0 2 2 … 8/ 2 7 / 2 0 2 2 … 9/ 3 / 2 0 2 2 … 9/ 1 0 / 2 0 2 2 … 9/ 1 7 / 2 0 2 2 … 9/ 2 4 / 2 0 2 2 … 10 / 1 / 2 0 2 2 … 10 / 8 / 2 0 2 2 … 10 / 1 5 / 2 0 2 2 … 10 / 2 2 / 2 0 2 2 … 10 / 2 9 / 2 0 2 2 … 11 / 5 / 2 0 2 2 … 11 / 1 2 / 2 0 2 2 … 11 / 1 9 / 2 0 2 2 … 11 / 2 6 / 2 0 2 2 … 12 / 3 / 2 0 2 2 … Blair Creek Rain 2022 MICHAEL BAKER ENGINEERING, INC BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Year 1 (2022) Year 2 (2023) Year 3 (2024) Year 4 (2025) Year 5 (2026) Year 6 (2027) Year 7 (2028) Year 1 (2022) Year 2 (2023) Year 3 (2024) Year 4 (2025) Year 5 (2026) Year 6 (2027) Year 7 (2028) BC Flow 1 259.0 315.0 Flow Gauges (Installed January, 2022) Table 12. All Years Flow Gauge Success Blair Creek Mitigation Project - NCDMS Project No. 100047 Flow Gauge ID Most Consecutive Days Meeting Criteria1 Cumulative Days Meeting Criteria2 Notes: ¹Indicates the number of consecutive days within the monitoring year where flow was measured. 2Indicates the number of cumulative days within the monitoring year where flow was measured. Success criteria will include 30 days of consecutive baseflow for monitoring gauges during a normal rainfall year. Surface water flow is estimated to have occurred when the pressure transducer reading is equal to or above 0.05 feet in depth. MICHAEL BAKER ENGINEERING, INC. BLAIR CREEK MITIGATION PROJECT (DMS #100047) YEAR 1 MONITORING REPORT Figure 7. Observed Rainfall vs. Historical Average 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 Nov-21 Dec-21 Jan-22 Feb-22 Mar-22 Apr-22 May-22 Jun-22 Jul-22 Aug-22 Sep-22 Oct-22 Pr e c i p i t a t i o n ( I n c h e s ) Blair Creek Project, MY1 Observed Rainfall vs. Historic Average Monthly Precip. (49.56)Historic 30% Less (41.84)Historic 70% (70.39)Historic Avg. (59.49)