HomeMy WebLinkAbout19970506 Ver 1_Year 3 Monitoring Report_20111101YADKIN
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Sue Homewood
585 Waughtown Street
Winston - Salem, NC 27107
Dear Ms. Homewood:
r7RECEIVED 7'
C Dept of ENR
f
JAN 15 2013 'I
Winston -Salem
Regional Office
COUNTY
A RO L I N A
January 14, 2013
We have enclosed copies of the Deep Creek 5 -D Mitigation monitoring reports for the
first four years of the monitoring period. If you need any additional information please
feel free to contact me.
Sincerely,
W
Jason Walker
Yadkin Soil and Water Conservation District
(336) 679 -8052
r
Page 1 of 6
Year 3 (2011) Monitoring Report
Deep Creek Watershed Structure 5D
Mitigation Project
Dinkins Bottom Wedand Mitigation Site
Yadkin County, North Carolina
November 2011
Prepared for:
US Army Corps of Engineers
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Prepared by:
Yadkin Soil and Water Conservation District
PO Box 8
Yadkinville, NC 27055
In cooperation with:
USDA Natural Resources Conservation Service
Page 1 of 6
Year 3 (2011) Monitoring Report,
Deep Creek Watershed Structure 5D
Mitigation Project
Dinkins Bottom Wetland Mitigation Site
Yadkin County, North Carolina
November 2011
Prepared for:
US Army Corps of Engineers
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Prepared by:
Yadkin Soil and Water Conservation District
PO Box 8
Yadkinville, NC 27055
In cooperation with:
USDA Natural Resources Conservation Service
I
TABLE OF CONTENTS
1.0 Project Overview .................................................................................... ............................... 1
1.1 Project Goals and Objectives .................................................................. ............................... 1
1.2 Project Location ...................................................................................... ............................... 1
2.0 Monitoring Success Requirements ......................................................... ............................... 2
2.1 Wetland Hydrology ................................................................................ ............................... 2
2.2 Wetland Vegetation ................................................................................ ............................... 2
2.3 Reference Photograph Points ................................................................. ............................... 2
2.4 Maintenance and Contingency Plans ....................................................... ..............................2
3.0 Year 3 Monitoring Results ...................................................................... ............................... 3
3.1 Hydrology Assessment ............................................................................. ..............................3
3.2 Vegetative Assessment .............................................................................. ..............................3
Appendix 1 - Figures
Appendix 2 - Monitoring Data
Appendix 3 - Reference Photographs
List of Appendices
List of Figures
Figure 1 - Project Vicinity Map
Figure 2 - Topographic Map with Locations of Wells, Plugs and Vegetation.Plots
Deep Creek Watershed Structure 5D
Dinkins Bottom Wetland mitigation Site
Page 2 of 6
Year 3 of 5 monitoring Report
November 2011
ACE meeting 3/20/12
Dinkins Bottom
• Bad reference well because of location: in bottom -land woodland with larger trees, which
require much more water.
• Well #2 also not making it because of location again. Tree species in immediate surrounding
area are species that typically prefer drier conditions. Jean said not to waste money on trying to
save these wells.
• Tree thinning will be good for the site. Jean said not to cut all unwanted species and to be
careful not to cut good species that have come in on their own.
• Restoration area, in total, is lacking around 2 acres. Jean said that is would probably be best just
to buy the remaining acres from EPA.
Effie West
• This site has relatively good quality just based on the mayflies, stoneflies, caddisflies, and
crayfish found.
• Some of the live stakes are not doing so well. Jean said to watch out for damage from deer.
• Overall quality of site will increase with more shade.
Carl Shore
• Stream quality not as good as Effie West because of runoff from agriculture upstream.
Increasing shade will help with turbidity and creating a better habitat for sensitive benthic
invertebrates.
• Live Stakes are doing much better at this site, may need to spray for Privet soon.
• Beaver damage needs to be a little more controlled
1.0 Project Overview
The Deep Creek Mitigation Project (Site) is located in Yadkin County, North Carolina within die
northern Inner Piedmont Eco- Region of the Yadkin River Basin (USGS HUC 03040105). The
Site consists of three separate mitigation projects (Dinkins Bottom Wetland Restoration, Carl
Shore Stream Restoration and Effie G. West Stream Enhancement Sites) that were a component
of the mitigation plan to address wetland and stream impacts resulting from the construction of die
multiple- purpose Structure 5D. The Structure 5D is part of die Deep Creek Watershed Work
Plan that was approved for operations on January 31, 1958. The project was authorized through
the Watershed Protection and Flood Prevention Act - Public Law 83 -566, as amended (US
U.S.C. 1001- 1008). The project sponsors were die Yadkin Soil and Water Conservation District
and Yakin County Board of Commissioners.
Structure 5D is a multiple- purpose structure that was designed for flood prevention and
municipal /industrial water supply in the Deep Creek Watershed. The Structure 5D is located on
South Deep Creek immediately upstream from old US 421 and has a drainage area of 25.01
square miles (sq.mi.). The surrounding land use consists of foresdand, cropland, grassland, and
miscellaneous or built -up land. Approximately 12.7 acres (ac) of seasonally saturated bottomland
hardwood habitat were inundated due to the permanent pool of Structure 5D. Both stream and
wedand mitigation issues were addressed within this project.
1.1 Project Goals and Objectives
The following mitigation goals were established within the Deep Creek Watershed to Compensate
for die unavoidable loss of seasonally saturated hardwood habitat areas.
1. Restore approximately 16.8 ac of wedand.
2. Improve water quality by increasing nutrient removal and transformation as well as
removing sedihnent and possible toxic materials,
3. Enhance wildlife habitat through die increased storage of surface and subsurface storage
This report serves as the Year three (2011) annual monitoring report of the five year monitoring
plan for die Dinkins Bottom Wedand Restoration site of die Deep Creek Mitigation Project.
1.2 Project Location
The Dinkins Bottom Wedand Restoration Site is located southeast of die town of Yadkinville,
approximately 14 miles downstream of Structure 5D. The project is located in the Yadkin -iPee
Dee River Basin, Catalog Unit 03040105 with a watershed land use dominated by rural pasture
land and forest. The area selected for restoration is a 26 ac tract, which included 16.8 suitable for
wedand restoration and 9.2 ac for upland hardwood habitat, education trails/boardwalk, and gravel
access roads and parking lots.
Page 3 of 6
Hydric soil boundaries within the project area were determined in the field by Bill Woody, NRCS
Soil Scientist, Salisbury, NC. The dominate soil mapping units per die Yadkin County Soil Survey
within the 16.8 acre project area are Augusta silt loam, Chewacala silt loam, and Wehadkee silt
loam. The remaining 9.2 acres consist of State fine sandy loam and Wicliliam fine sandy loam, 7
to 129,/o slope, eroded.
To access the site from Charlotte, North Carolina, take Interstate 77 North for approximately 62
miles to exit 73A (US -421 South). Follow US -421 south to exit 249, Baltimore /Dinkins Bottom
Road and turn right at die end of die exit ramp onto Dinkins Bottom Road. Take Dinkins
Bottom Road approximately 1 mile, site on right. Please refer to Figure 1 for a location map of the
project site.
2.0 Monitoring Success Requirements
Annual monitoring will consist of collecting hydrologic and vegetative data to assess the project
success based on the restoration goals and objectives. The site will be monitored for five years
(beginning in 2009) with an annual monitoring report submitted to the corps within 30 days of die
monitoring activities.
2.1 Wetland hydrology
Wetland hydrology attainment will be monitored in accordance to the United States Army Corps
of Engineers (USACE) (2003) standards as stated in the mitigation plan (2005). The target wetland
hydrological success criterion is saturation or inundation for at least 5 percent of die growing
season in die lower landscape (floodplain) positions. To achieve the above hydrologic success
criterion, groundwater levels must be within 12- inches of the ground surface for 10 consecutive
days which is 5 percent of the April 11- October 30 growing season.
2.2 Wetland Vegetation
Planted vegetation will be monitored for five years following a stem count protocol, which consists
of counting woody stems within die established vegetation plots. To achieve vegetative success
criteria die average number of planted stems per acre must exceed or meet 320 stems /acre after
the third year of monitoring, 288 stems /acre after four years, and 260 stems /acre after the fifth year
of project monitoring.
2.3 Reference Photograph Points
Permanent photographic reference points established along the wetland will be used to support die
qualitative visual assessments for the annual monitoring and subjectively evaluate success of
vegetation and hydrology.
2.4 Maintenance and Contingency Plans
Potential problem areas, such as unsuccessful vegetation establishment or hydrology attainment
will be evaluated during die annual monitoring. If, during the annual review of the wetland area,
Page 4 of 6
a failure is noted, the areas will be evaluated and discussed with appropriate personnel to
determine if remedial maintenance measures are required to resolve the problem. If remediation
of an area is required, a proposal will be submitted for the needed work.
3.0 Year 3 Monitoring Results
Results from the 2011 wedand monitoring effort indicate that the Dinkins Bottom Site is meeting
mitigation goals in all proposed areas.
3.1 Hydrology Assessment
Seven groundwater monitoring gauges are located on site. Automated gauges have been installed
and are programmed to download water levels daily. These gauges will be used to report hydrology
success criteria for all upcoming monitoring years.
Groundwater monitoring results from the 2011 monitoring year indicate that five of the seven
groundwater gauges (1,2,3,4 and 7) achieved die wetland success criteria of saturation for 10
consecutive days (5 (yo) during the growing season. Gauge 6 did not meet die wetland success
criteria. However, topographic constraints may be contributing to the lack of wetland hydrologic
success at these gauges.
Please refer to Appendix 2 for wetland monitoring data and a summary table of die wetland
criteria attainment.
3.2 Vegetative Assessment
The 2011 vegetation monitoring results indicated that the Site is meeting vegetative success criteria.
The average site density is approximately 908 planted stems per acre, which exceeds the year three
goal of 320 planted stems per acre. There is an average of 46 live planted stems per plot. There
was a concern of too many Sweet Gum and Sycamore in plots 6, 8 and 9 so we performed a hack
& squirt method in the fall of 2011 in order to dun some of these unwanted species. The results
should show up in die 2012 Stem Count. Please refer to appendix 2 for more detailed
information on the 2011 vegetation data.
In summary, the Dinkins Bottom site has met the wetland and vegetation mitigation goals for
monitoring year 3. The background information provided in this report is referenced form the
mitigation plan. Please refer to Appendix 2 for more detailed data tables and plots for monitoring
year three and Appendix 3 for representative photographs.
Deep Creek Watershed Structure 5D Mitigation Project Year 3 of 5 Monitoring Report
Dinkins Bottom Wetland mitigation Site November 2011
Page 5 of 6
APPENDIX 1 - FIGURES
Figure 1. Project Vicinity Map
Figure 2.Topographic Map with Locations of Wells, Plugs
And Vegetation Plots
i Deep Creek Watershed Structure 5D Mitigation Project Year 1 of 5 Monitonng Report
Dmkms Bottom Wetland Mitigation Site 11 November 2010
Page 6 of 6
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APPENDIX 2 - MONITORING DATA
Wetland Success Criteria Summary Table
Groundwater Guage Plots
Vegetation Summary Table
Summary of Groundwater Gauge Results for years 1 through 5
Gauge
Success Criteria Achieved
GWG 1
2009
2010
2011
2012
2013
2014
GWG 2
Yes
Yes
GWG 3
Yes
Yes
GWG 4
Unknown
Yes
GWG 5*
No
No
GWG6 **
No
No
GWG 7
Yes
Yes
Automated gauges have been installed and will be used to report hydrologic
success in the upcoming monitoring years.
*Reference Site
* *Groundwater gauge is located in the upland area of the wetland
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