HomeMy WebLinkAbout20171291 Ver 1_Baseline Monitoring Report FINAL_20210723fires
June 17, 2021
Mr. Steve Kichefski
U.S. Army Corps of Engineers
Regulatory Division
151 Patton Ave. Room 208
Asheville, NC 28801-5006
3600 Glenwood Avenue. Suite 100
Raleigh, NC 27612
Corporate Headquarters
6575 West Loop South, Suite 300
Bellaire, TX 77401
Main: 713.520.5400
RE: Gideon As -Built Baseline Monitoring Report (SAW-2017-01462 1 RES Yadkin 01 Umbrella
Mitigation Bank)
Dear Mr. Kichefski,
Please find attached the Gideon As -Built Baseline Monitoring Report. Stream construction and planting
was completed in March 2021 and fencing was completed in Apri12021. The site was built very closely to
design plans and guidelines.
RES setup cross sections, vegetation plots, and stream/wetland monitoring devices in March 2021.
Monitoring of the four permanent vegetation plots determined the average planted stems per acre was 1,093.
In addition, all cross sections were surveyed in March 2021 and no stream problem areas were identified.
RES is requesting a 15% stream credit release (436.690 SMUs) for the completion of the as -built report.
Please see enclosed the credit release timeline and an updated credit ledger.
Thank you,
Ryan Medric I Ecologist
res.us
AS -BUILT BASELINE MONITORING REPORT
GIDEON
MITIGATION SITE
EMKIN COUNTY, NORTH CAROLINA
USACE Action ID: SAW-2017-01462 I DWR Project 917-1291
RES YADKIN 01 UMBRELLA MITIGATION BANK
Provided by:
pres
Bank Sponsor: Environmental Banc & Exchange, LLC
An entity of Resource Environmental Solutions
3600 Glenwood Ave, Suite 100
Raleigh, NC 27612
919-209-1056
June2021
Table of Contents
1.0 Project Summary..................................................................................................................................... 1
1.1
Project Location and Description.............................................................................................. 1
1.2
Project Goals and Objectives.................................................................................................... 1
1.3
Project Success Criteria............................................................................................................. 2
Stream Restoration Success Criteria................................................................................................ 2
VegetationSuccess Criteria............................................................................................................. 3
1.4
Project Components.................................................................................................................. 3
1.5
Stream Design/Approach.......................................................................................................... 3
1.6
Construction and As -Built Conditions...................................................................................... 5
1.7
Baseline Monitoring Performance(MYO)................................................................................. 5
Vegetation........................................................................................................................................ 5
StreamGeomorphology................................................................................................................... 5
StreamHydrology............................................................................................................................ 6
WetlandHydrology.......................................................................................................................... 6
2.0 Methods.................................................................................................................................................. 6
3.0 References............................................................................................................................................... 7
Appendix A: Background Tables
Table 1. Project Mitigation Components
Table 2. Project Activity and Reporting History
Table 3. Project Contacts Table
Table 4. Project Background Information Table
Figure 1. Site Location Map
Appendix B: Visual Assessment Data
Figure 2. Current Conditions Plan View
Vegetation Plot Photos
Monitoring Device Photos
Appendix C: Vegetation Plot Data
Table 5. Planted Species Summary
Table 6. Vegetation Plot Mitigation Success Summary
Table 7. Stem Count Total and Planted by Plot Species
Appendix D: Stream Measurement and Geomorpholo2y Data
Table 8. Baseline Stream Data Summary
Table 9. Cross Section Morphology Data Table
Cross Section Overlay Plots
Appendix E: Record Drawings
Gideon Site Record Drawings
Gideon Mitigation Site As -Built Survey
1.0 Proiect Summary
1.1 Project Location and Description
The Gideon Project ("Project") is located within a rural watershed in Surry County, North Carolina
approximately 10 miles north of Elkin. Water quality stressors affecting the Project included livestock
production, agricultural practices, and lack of riparian buffer. The Project presents stream restoration,
enhancement, and preservation, generating 2,962.067 Cool Stream Mitigation Units (SMU).
The Project's total easement area is 11.23 acres within the overall drainage area of 3,225 acres. The Project
is between two separate portions of the Division of Mitigation Services (DMS) Little Sebastian Site. While
each site could be developed independently of the other, the combined easements will result in a much
larger contiguous protected corridor and high -quality aquatic habitat. The Little Sebastian Site has a total
easement area that is approximately 25.90 acres and presents 8,068 LF of stream restoration, enhancement,
and preservation. Therefore, a total of 37.13 acres and 12,850 LF of stream will be protected in perpetuity
when combining the totals on Little Sebastian and Gideon. Grazing livestock have historically had access
to most stream reaches within the Project. The lack of riparian buffer vegetation, deep-rooted vegetation,
and unstable channel characteristics have contributed to the degradation of stream banks throughout the
Project area.
The stream design approach for the Project was to combine the analog method of natural channel design
with analytical methods to evaluate stream flows and hydraulic performance of the channel and floodplain.
The analog method involved the use of a reference reach, or "template" stream, adjacent to, nearby, or
previously in the same location as the design reach. The template parameters of the analog reach were
replicated to create the features of the design reach. The analog approach is useful when watershed and
boundary conditions are similar between the design and analog reaches (Skidmore et al., 2001). Hydraulic
geometry was developed using analytical methods to identify the design discharge.
The Project has been constructed and planted and will be monitored on a regular basis throughout the seven-
year post -construction monitoring period, or until performance standards are met. The Project will be
transferred to Unique Places to Save (UP2S). This party shall serve as conservation easement holder and
long-term steward for the property and will conduct periodic inspection of the site to ensure that restrictions
required in the conservation easement are upheld. Funding will be supplied by the responsible party on a
yearly basis until such time an endowment is established.
1.2 Project Goals and Objectives
Through the comprehensive analysis of the Project's maximum functional uplift using the Stream Functions
Pyramid Framework, specific, attainable goals and objectives will be realized by the Project. These goals
clearly address the degraded water quality and nutrient input from farming that were identified as major
watershed stressors in the 2009 Upper Yadkin Pee -Dee River RBRP. These goals and objectives reflect
those stated in the Gideon Project Final Mitigation Plan.
The Project goals are:
• Improve water transport from watershed to the channel in a non -erosive manner in a stable channel;
• Improve flood flow attenuation on site and downstream by allowing for overbanks flows and
connection to the active floodplain;
• Improve instream habitat;
• Restore and enhance native floodplain vegetation; and
Gideon Mitigation Site 1 As -Built Baseline Monitoring Report
Surry County, NC June 2021
• Indirectly support the goals of the 2009 Upper Yadkin Pee -Dee RBRP to improve water quality
and to reduce sediment and nutrient loads.
The Project goals were addressed through the following project objectives:
• Designed and reconstructed stream channels sized to convey bankfull flows that maintain a stable
dimension, profile, and planform based on modeling, watershed conditions, and reference reach
conditions;
• Permanently excluded livestock from stream channels and their associated buffers;
• Added in -stream structures and bank stabilization measures to protect restored and enhanced
streams;
• Installed habitat features such as brush toes, constructed riffles, woody materials, and pools of
varying depths to restored and enhanced streams;
• Reduced bank height ratios and increased entrenchment ratios to reference reach conditions;
• Increased forested riparian buffers to at least 30 feet on both sides of the channel along the Project
reaches with a hardwood riparian plant community;
• Treated exotic invasive species; and
• Established a permanent conservation easement on the Project.
Functional uplift, benefits, and improvements within the Project area, as based on the Function Based
Framework, are outlined in the Final Mitigation Plan.
1.3 Project Success Criteria
The success criteria for the Project follows the 2016 USACE Wilmington District Stream and Wetland
Compensatory Mitigation Update, the Gideon Final Mitigation Plan, and subsequent agency guidance.
Cross section and vegetation plot monitoring takes place in Years 0, 1, 2, 3, 5, and 7. Stream hydrology and
visual monitoring takes place annually. Specific success criteria components are presented below.
Stream Restoration Success Criteria
Four bankfull flow events must be documented within the seven-year monitoring period. The bankfull
events must occur in separate years. Otherwise, the stream monitoring will continue until four bankfull
events have been documented in separate years.
There should be little change in as -built cross sections. If changes do take place, they should be evaluated
to determine if they represent a movement toward a less stable condition (for example down -cutting or
erosion) or are minor changes that represent an increase in stability (for example settling, vegetative
changes, deposition along the banks, or decrease in width/depth ratio). Cross sections shall be classified
using the Rosgen stream classification method, and all monitored cross sections should fall within the
quantitative parameters defined for channels of the design stream type. For C/E channels, bank height ratio
shall not exceed 1.2, and the entrenchment ratio shall be no less than 2.2 within restored reaches. For B
channels, bank height ratio shall not exceed 1.2, and the entrenchment ratio shall be no less than 1.4 within
restored reaches. Channel stability should be demonstrated through a minimum of four bankfull events
documented in the seven-year monitoring period.
Digital images are used to subjectively evaluate channel aggradation or degradation, bank erosion, success
of riparian vegetation, and effectiveness of erosion control measures. Longitudinal images should not
indicate the absence of developing bars within the channel or an excessive increase in channel depth. Lateral
images should not indicate excessive erosion or continuing degradation of the banks over time. A series of
Gideon Mitigation Site 2 As -Built Baseline Monitoring Report
Surry County, NC June 2021
images over time should indicate successional maturation of riparian vegetation.
Stream restoration reaches will be monitored to document intermittent or seasonal surface flow. This will
be accomplished through direct observation and the use of stream gauge transducers with data loggers.
Reaches must demonstrate a minimum of 30 consecutive days of flow.
Vegetation Success Criteria
Specific and measurable success criteria for plant density within the riparian buffers on the Project will
follow IRT Guidance. The interim measures of vegetative success for the Project will be the survival of
at least 320 planted three-year old trees per acre at the end of Year 3, five-year old trees at six feet in
height at the end of Year 5, and the final vegetative success criteria will be 210 trees per acre with an
average height of eight feet at the end of Year 7. Volunteer trees will be counted, identified to species,
and included in the yearly monitoring reports, but will not be counted towards the success criteria of
total planted stems. Moreover, any single species can only account for up to 50 percent of the required
number of stems within any vegetation plot. Any stems in excess of 50 percent will be shown in the
monitoring table but will not be used to demonstrate success.
1.4 Project Components
The Project area is comprised of a single 11.23-acre easement location along Mill Creek and three unnamed
tributaries, totaling 4,782 LF, which eventually drain into the Yadkin River.
Through stream restoration, enhancement, and preservation, the Project presents 4,782 LF of proposed
stream, generating 2,962.067 Cool SMUs. The stream mitigation components are summarized below.
Mitigation credits presented below are based upon the Approved Mitigation Plan.
Mitigation Approach
Linear Feet
Ratio
Base Cool SMU
Restoration
Enhancement I
Enhancement III
Preservation
2,283
493
1,498
508
1
1.5
5
10
2,283.000
328.667
299.600
50.800
Total
4,782
2,962.067
1.5 Stream DesignAApproach
The stream component of the Project included priority I stream restoration, enhancement I, enhancement
III, and preservation. Stream restoration incorporated the design of a single -thread meandering channel,
with parameters based on data taken from reference sites, published empirical relationships, regional curves
developed from existing project streams, and NC Regional Curves. Analytical design techniques were also
a crucial element of the project and were used to determine the design discharge and to verify design
stability.
The following stream treatment was performed on the Project reach:
Reach JN4-A
An enhancement III approach was used for the reach to address eroded banks and channel entrenchment.
Enhancement activities included:
Gideon Mitigation Site 3 As -Built Baseline Monitoring Report
Surry County, NC June 2021
- Livestock exclusion; and
- Riparian planting.
Reach JN4-B
An enhancement I approach was used for the reach to address eroded banks and channel entrenchment.
Enhancement activities included:
- Removal of pipe in channel and fixing of current culvert;
- Installing log and rock structures to provide grade control and habitat;
- Establishing a riffle -pool sequence throughout the reach;
- Installing brush toe protection on meander bends;
- Livestock exclusion; and
- Riparian planting.
Reach JN5
An enhancement I approach was used for the reach to address eroded banks and channel entrenchment.
Enhancement activities included:
- Installing log and rock structures to provide grade control and habitat;
- Establishing a riffle -pool sequence throughout the reach;
- Installing brush toe protection on meander bends;
- Livestock exclusion; and
- Riparian planting.
Reach JN6-A
A preservation approach was used for the reach to address eroded banks and channel entrenchment.
Preservation activities included:
- Livestock exclusion; and
- Riparian planting.
Reach JN6-B
An enhancement III approach was used for the reach to address eroded banks and channel entrenchment.
Enhancement activities included:
- Livestock exclusion; and
- Riparian planting.
Reach JN6-C
An offline priority I restoration approach was used for the reach to address eroded banks and channel
entrenchment. Restoration activities included:
- Re -grading a new single thread channel in the existing floodplain;
- Installing log and rock structures to provide grade control and habitat;
- Establishing a riffle -pool sequence throughout the reach;
- Installing brush toe protection on meander bends;
- Filling the existing channel;
- Livestock exclusion; and
- Riparian planting.
Reach MC2-A
An offline priority I restoration approach was used for the reach to address eroded banks and channel
entrenchment. Restoration activities included:
- Re -grading a new single thread channel in the existing floodplain;
- Installing log and rock structures to provide grade control and habitat;
Gideon Mitigation Site 4 As -Built Baseline Monitoring Report
Surry County, NC June 2021
- Establishing a riffle -pool sequence throughout the reach;
- Installing brush toe protection on meander bends;
- Filling the existing channel;
- Livestock exclusion; and
- Riparian planting.
Reach MC2-B
An enhancement III approach was used for the reach to address eroded banks and channel entrenchment.
Enhancement activities included:
- Livestock exclusion; and
- Riparian planting.
1.6 Construction and As Built Conditions
Stream construction was completed in February 2021 and planting was completed in March 2021. The
Gideon Project was built to design plans and guidelines with no significant changes during construction.
The as -built survey and record drawings are included in Appendix E.
Planting plan changes included replacing blackgum (Nyssa sylvatica) and elderberry (Sambucus
canadensis) with sugarberry (Celtis laevigata) and buttonbush (Cephalanthus occidentalis). These changes
were based on bare root availability. A planted species summary is included in Appendix C.
1.7 Baseline Monitoring Performance (MYO)
The Gideon baseline monitoring activities were performed in March 2021. All baseline monitoring data is
present below and in the appendices. The Project is on track to meeting vegetation, stream, and wetland
interim success criteria.
Ve etg ation
Setup and monitoring of four fixed vegetation plots was completed after planting and stream construction
on March 17, 2021. Vegetation data are in Appendix C, associated photos are in Appendix B, and plot
locations are in Appendix B. MYO monitoring data indicates that all plots are exceeding the interim success
criteria of 320 planted stems per acre. Planted stem densities ranged from 607 to 1,457 planted stems per
acre with a mean of 1,093 planted stems per acre across all plots. A total of 10 species were documented
within the plots. Volunteer species were not noted at baseline monitoring but are expected to establish in
upcoming years. The average stem height in the plots was 1.6 feet.
Visual assessment of vegetation outside of the monitoring plots indicates that the herbaceous vegetation is
becoming well established throughout the project.
Stream Geomorphology
A total of twelve cross sections were installed and geomorphology data collection for MYO was conducted
on January 20, 2021. Summary tables and cross section plots are in Appendix D. Overall the baseline cross
sections and profile relatively match the proposed design. The as -built conditions show that shear stress
and velocities have been reduced for the restoration reach. The reach was designed as a coarse gravel to
cobble bed channel and remain classified as a coarse gravel to cobble bed channel post -construction.
Gideon Mitigation Site 5 As -Built Baseline Monitoring Report
Surry County, NC June 2021
Visual assessment of the stream channel was performed to document signs of instability, such as eroding
banks, structural instability, or excessive sedimentation. The channel is transporting sediment as designed
and will continue to be monitored for aggradation and degradation.
Stream Hydrology
One stage recorder and one flow gauge were installed on March 4, 2021. The stage recorder is on MC2-A
and the flow gauge is on JN6-B. The stage recorder will document bankfull events and the flow gauge will
document consecutive flow days. Stream hydrology data will be included in the Monitoring Year 1 Report
in this section and in the appendices. The gauge location can be found on Figure 2 and photos are in
Appendix B.
Wetland Hydrology
Three groundwater wells with automatic recording pressure transducers were installed in March 2021. The
goal of the groundwater wells is to track the hydrology of the jurisdictional wetlands on site post -
construction. There is no hydroperiod success criteria for these groundwater wells. Wetland hydrology data
will be included in the Monitoring Year 1 Report in this section and in the appendices. The gauge locations
can be found on Figure 2 and photos are in Appendix B.
2.0 Methods
Stream cross section monitoring was conducted using a Topcon GTS-312 Total Station. Three-dimensional
coordinates associated with cross-section data were collected in the field (NAD83 State Plane feet FIPS
3200). Morphological data were collected at 10 cross -sections. Survey data were imported into CAD,
ArcGIS®, and Microsoft Excel® for data processing and analysis. The stage recorders include an automatic
pressure transducer placed in PVC casing in a pool. The elevation of the bed and top of bank at each stage
recorder are used to detect bankfull events.
Vegetation success is being monitored at four fixed monitoring plots. Vegetation plot monitoring follows
the CVS-EEP Level 2 Protocol for Recording Vegetation, version 4.2 (Lee et al. 2008) and includes analysis
of species composition and density of planted species. Data are processed using the CVS data entry tool. In
the field, the four corners of each plot were permanently marked with PVC at the origin and metal conduit
at the other corners. Photos of each plot are to be taken from the origin each monitoring year.
Wetland hydrology is monitored to track the hydrology of the jurisdictional wetlands on site post -
construction. This is accomplished with three automatic pressure transducer gauges (located in groundwater
wells) that record daily groundwater levels. One automatic pressure transducer is installed above ground
for use as a barometric reference. Gauges are downloaded quarterly and wetland hydroperiods are
calculated during the growing season. Gauge installation followed current regulatory guidance. Visual
observations of primary and secondary wetland hydrology indicators are also recorded during quarterly site
visits.
Gideon Mitigation Site 6 As -Built Baseline Monitoring Report
Surry County, NC June 2021
3.0 References
Griffith, G.E., J.M.Omernik, J.A. Comstock, M.P. Schafale, W.H.McNab, D.R.Lenat, T.F.MacPherson,
J.B. Glover, and V.B. Shelburne. (2002). Ecoregions of North Carolina and South Carolina,
(color Poster with map, descriptive text, summary tables, and photographs): Reston, Virginia,
U.S. Geological Survey (map scale 1:1,500,000).
Lee Michael T., Peet Robert K., Roberts Steven D., and Wentworth Thomas R., 2008. CVS-EEP Protocol
for Recording Vegetation Level. Version 4.2
Peet, R.K., Wentworth, T.S., and White, P.S. (1998), A flexible, multipurpose method for recording
vegetation composition and structure. Castanea 63:262-274
Resource Environmental Solutions (2019). Gideon Final Mitigation Plan.
Schafale, M.P. 2012. Guide to the Natural Communities of North Carolina, Fourth Approximation. North
Carolina Natural Heritage Program, Division of Parks and Recreation, NCDENR, Raleigh, NC.
USACE. (2016). Wilmington District Stream and Wetland Compensatory Mitigation Update. NC:
Interagency Review Team (IRT).
Gideon Mitigation Site 7 As -Built Baseline Monitoring Report
Surry County, NC June 2021
Appendix A
Background Tables
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Table 2. Project Activity and Reporting History
Gideon Mitigation Project
Elapsed Time Since grading complete: 3 months
Elapsed Time Since planting complete: 3 months
Number of reporting Years : 0
Activity or Deliverable
Data Collection
Complete
Completion or
Delivery
Restoration Plan
NA
Jun-19
Final Design — Construction Plans
NA
Sep-20
Stream Construction
NA
Mar-21
Site Planting
NA
Mar-21
As -built (Year 0 Monitoring — baseline)
Jan-21
Jun-21
Year 1 Monitoring
Year 2 Monitoring
Year 3 Monitoring
Year 4 Monitoring
Year 5 Monitoring
Year 6 Monitoring
Year 7 Monitoring
= The number of reports or data points produced excluding the baseline
Table 3. Project Contacts Table
Gideon Mitigation Project
Designer
RES / 3600 Glenwood Ave., Suite 100, Raleigh, NC 27612
Primary project design POC
A. Frasier Mullen, PE
Construction Contractor
KBS Earthwork Inc. / 5616 Coble Church Rd., Julian, NC
27283
Construction contractor POC
Kory Strader
Survey Contractor
Ascension Land Surveying, PC /116 Williams Road,
Mocksville, NC 27028
Survey contractor POC
Chris Cole, PLS
Planting Contractor
Shenandoah Habitats
Planting contractor POC
David Coleman
Monitoring Performers
RES / 3600 Glenwood Ave, Suite 100, Raleigh, NC 27612
Monitoring POC
JRyan Medric (919) 741-6268
Table 4. Project Background Information
Project Name
Gideon
County
S u rry
Project Area (acres)
11.23
Project Coordinates (latitude and longitude)
36.39659.-80.85833
Planted Acreage (Acres of Woody Stems Planted)
4.26
Project Watershed Summary Information
Physiographic Province
45e - Northern Inner Piedmont
River Basin
Yadkin
USGS Hydrologic Unit 8-digit
03040101
USGS Hydrologic Unit 14-digit
03040101080020
DWR Sub -basin
03-04-01
Project Drainage Area (Acres and Square Miles)
3,191
Project Drainage Area Percentage of Impervious Area
<1
Reach Summary Information
Parameters
JN4-A
JN4-B
JN5
Length of reach (linear feet)
213
249
244
Drainage area (Acres)
37
39
198
Perennial, Intermittent, Ephemeral
P
P
P
Little Sebastian I
Mitigation Site
Winsto a
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Lenoir
Conservation Easement
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Little Sebastian Mitigation Site
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Service Area - 03040101
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Figure 1 -Site Location Map
W E
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Date5/31/21
Drawn by: RTM
roms
Gideon Mitigation Site
0 500 1,000
Checked by:BPB
Surry County, North Carolina
1 inch = 1,000 feet
Feet
Appendix B
Visual Assessment Data
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Appendix C
Vegetation Plot Data
Appendix C. Vegetation Plot Data
Table 5. Planted Species Summary
Common Name
Scientific Name
Mit Plan %
As -Built %
Total Stems Planted
Willow Oak
Quercus phellos
15
15
700
River Birch
Betula nigra
15
15
700
Water Oak
Quercus ni ra
15
14
700
Northern Red Oak
Quercus rubra
10
10
500
Yellow Poplar
Liriodendron tulipifera
10
10
500
Sycamore
Platanus occidentalis
10
10
500
Sugarberry
Celtis laevigata
0
10
500
Buttonbush
Cephalanthus occidentalis
0
6
300
Persimmon
Diospyros virginiana
5
6
300
Green Ash
Fraxinus pennsylvanica
10
4
200
Elderberry
Sambucus canadensis
5
0
0
N ssa s lvatica
Blackgum
5
0
0
Total
4,900
Planted Area
4.26
As -built Planted Stems/Acre
1,150
Table 6. Vegetation Plot Mitigation Success Summary
Averaged
Success
Planted
Volunteer
Total
Planted
Plot #
Criteria
Stems/Acre
Stems/Acre
Stems/Acre
Stem
Met?
Height (ft)
1
1133
0
1133
Yes
1.8
2
1457
0
1457
Yes
1.6
3
1174
0
1174
Yes
1.5
4
607
0
607
Yes
1.3
Project Avg
1093
0
1093
Yes
1.6
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Appendix D
Stream Measurement and
Geomorphology Data
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SNOISI—
o
ID#* 20171291 Version* 1
Select Reviewer:*
Erin Davis
Initial Review Completed Date 07/26/2021
Mitigation Project Submittal - 7/23/2021
Is this a Prospectus, Technical Proposal or a New Site?* O Yes a No
Type of Mitigation Project:*
rJ Stream r Wetlands [Buffer ❑ Nutrient Offset
(Select all that apply)
Project Contact Information
Contact Name:*
Kasey Carrere
Project Information
...................................................................................
ID#:* 20171291
Existing IDt
Project Type:
Project Name:
County:
r DMS r Mitigation Bank
Gideon
Surry
Document Information
Email Address:*
kcarrere@res.us
Version: * 1
Existing Version
Mitigation Document Type:*
Mitigation As -Built Plans
File Upload: Gideon Baseline Monitoring Report FINAL.pdf 11.41MB
Rease upload only one PDFcf the conplete file that needs to be subrritted...
Signature
Print Name:* Ryan Medric
Signature:*