20100516 Ver 1_Mitigation Plans_20100525

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UT Altamahaw Creek Site
Prepared for the
NC Department of Environment and Natural Resources
Ecosystem Enhancement Program
2728 Capital Boulevard, Suite 1H 103
Raleigh, NC 27604
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Final Mitigation Plan
May 25, 2010
Alamance County, NC
State Construction Project No. 09-0762301
EEP Project No. 92837
Prepared by:
cological
ineeringJ
1 21% Raleigh Slreel
Holly Springs. NC 27540
419.557.0429
G. lane Sauls. Jr., Pr cipal
Table of Contents
1.0 Introduction ...................................
Pace
2.0 Watershed Planning Background Information ..............................................................2
3.0 Project Goals and Objectives ............................................................................................3
4.0 Existing Conditions ............................................................................................................4
4.1 Jurisdictional Resources ............................................................................................................4
4.2 Soil Assessment ........................................................................................................................ 5
4.3 FEMA Information ................................................................................................................... 5
5.0 Reference Study .................................................................................................................6
6.0 Restoration Plan .................................................................................................................7
6.1 Soil Amendments ......................................................................................................................7
6.2 Planting Plan ............................................................................................................................. 8
6.3 Invasive Species Management ................................................................................................10
6.3.1 Vegetative Species ...............................................................................................10
6.3.2 Non-vegetative Species ........................................................................................10
6.4 Spillway Enhancement ............................................................................................................ 11
6.5 Sheetflow Diversion ................................................................................................................ I I
7.0 Performance Criteria ......................................................................................................12
7.1 Vegetation ...............................................................................................................................12
7.2 Schedule and Reporting ..........................................................................................................12
8.0 References .........................................................................................................................13
9.0 Figures
Figure 1. Vicinity Map
Figure 2. Aerial Photograph
Figure 3. Site Features
10.0 Appendices
Appendix 1. Site Photographs
Appendix 2. Jurisdictional Determination
Appendix 3. NCDA&CS Soil Test Results and Recommendations
Final Mitigation Plan Page
UT Altamahaw Creek, Alamance County, NC i
Prepared by Ecological Engineering, LLP
1.0 Introduction
Ecological Engineering, LLP (Ecological Engineering) has entered into an open services design contract
with the NC Department of Environment and Natural Resources, Ecosystem Enhancement Program
(EEP) to provide designs and construction management for stream enhancement (Level II) within the
Cape Fear River Basin. The Project Site, also referred to as the UT Altamahaw Creek Site, is situated
approximately 6.1 miles west-northwest of Burlington and 1.3 miles east-southeast of the Altamahaw
community (Figure 1). Approximately 1,477 linear feet of perennial stream channels and 0.026 acres of
jurisdictional wetlands are included within the 3.6-acre easement area.
Project implementation will include supplemental riparian buffer planting under the mitigation category
of stream enhancement (Level II), auxiliary spillway enhancement immediately outside of the easement
area and design of a modified level spreader to diffuse surface runoff in the vicinity of the existing stream
crossing. In addition, the Alamance County Soil and Water Conservation District is also providing plans
and construction oversight for enhancing the current stream crossing, adjacent pasture areas, fencing, and
livestock watering facilities. The plans however, will be presented under separate cover.
Mitigation credits will be derived from stream enhancement activities. The following table provides
mitigation-related information pertaining to the project.
Table 1. Project Components and Structure
UT Altamahaw Creek- SCO Project Number 09-0762301, EEP Project Number 92837

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Project Component v v d °o `+ e
or Reach ID W k" AG "a d F=' d Stationing Comment
Unnamed Tributary #1 13471f Ell P4 1347 If n/a - Entire reach on property
main channel
Unnamed Tributary #2 130 If Ell P4 130 n/a - Entire reach on property
Component Summations
Riparian Wetland Ac Non-

Restoration Level
Stream
(If)

Riverine

Non-riverine Riparian
Wetland
Ac

Upland (Ac)

Butler Ac

BMW
Enhancement
Level II 14771f 0.026 ac - - - - -
Totals 14771f 0.026 ac - - - -
Miti ation Activity Mult i liers*
Mitigation Type Stream Mitigation
Units (SMU) Riparian Wetland
Mitigation Units
OWMU) Non-riparian Wetland
Mitigation Units
(nWMU) Buffer Mitigation
Units (BMU)
Enhancement 0.03
Enhancement II 591
Total 591 0.02
* This summation assumes the following Mitigation Activity Multiplier:
Stream Enhancement (Level II) - 2.5
Wetland Enhancement - 2.0
Final Mitigation Plan Page
UT Altamahaw Creek, Alamance County. NC I
Prepared by Ecological Engineering, LLP
2.0 Watershed Planning Background Information
The following information was ascertained from the Little Alamance, Travis, and Tickle Creek
Watersheds Restoration Plan (2008), prepared by The Piedmont Triad Council of Governments (PTCOG)
and funded by EEP.
The Project Site is within Targeted Watershed (TT8) of the Little Alamance, Travis & Tickle Creek
Watershed (LATT) along the Alamance/ Guilford County boundary. This watershed occupies 52 square
miles, immediately north of Interstate 40. The LATT Restoration Plan (2008) identifies potential sites,
including the UT Altamahaw Creek Site, as areas for suitable for conservation and restoration. Alamance
County is historically an agrarian community, with Burlington and Graham providing an industrial center
focused on textiles. Recently, the urban areas of Burlington and Graham have expanded, and contributed
low-density impervious coverage to the watersheds. The current urban area occupies 57% of the land in
the LATT watersheds (PTCOG, 2008). The NC Ecosystem Enhancement Program Local Watershed Plan
(LWP) process was used to develop a plan to remedy these water quality issues. The LWP is designed to
assess watershed conditions and identify opportunities to improve and protect watershed functions. This
process also helps address EEP's institutional need to mitigate impacts to streams and wetlands in the
Haw River Basin from NC Department of Transportation (NCDOT) projects and other development-
related impacts.
PTCOG (2008) denotes the need to approach watershed restoration with both projects and policies.
Projects should address obvious impacts to current watershed health, such as eroding streambanks and
policy changes should provide a more long-term strategy for sustainable watershed stewardship. In the
LATT watersheds, the major impact to water quality impairment is likely stormwater (PTCOG, 2008).
The UT Altamahaw Creek Site, identified as one of the critical parcels, currently lacks any controls to
prohibit livestock access within the riparian system associated with the unnamed tributaries flowing into
the Haw River. According to PTCOG (2008), this parcel is situated along a tributary of Basin Creek
(unnamed on current the current US Geological Survey Map), which is the most degraded stream in the
Travis and Tickle Creek Watershed. Recommendations include preserving this property and its
surrounding area for agriculture and open space. Fencing, stream and associated riparian enhancements
are also recommended.
Based on PTCOG (2008), six goals are stated in the local watershed restoration plan. They are:
I . Increase local government awareness of the impacts of urban growth on water resources;
2. Strengthen watershed protection standards;
3. Improve water quality through stormwater management;
4. Identify and rank parcels for retrofits, stream repair, preservation, and/or conservation;
5. Assess aquatic health to identify stressors that are the most likely causes of poor biological
conditions; and
6. Meet requirements of outside funding sources for implementation of projects.
Possible sources and/or stressors listed for the watershed area associated with the Project Site were
identified as agriculture, impervious surfaces and one National Pollutant Discharge Elimination System
(NPDES) discharger.
Final Mitigation Plan Page
UT Altamahaw Creek, Alamance County, NC 2
Prepared by Ecological Engineering, LLP
3.0 Project Goals and Objectives
Current landuse is the main reason for degradation throughout the Project Site. Livestock are offered no
barriers across the property which has resulted in degradation to the two unnamed tributaries and
associated wetland and riparian buffer areas. By removing livestock from the conservation easement area
and planting supplemental vegetation along the existing stream corridors, the project will uplift existing
natural and biological processes. It will also improve the overall function and habitat associated with the
stream channel and riparian areas.
The goals are to reduce nutrient and sediment water quality stressors, provide for uplift in water quality
functions, improve instream and wetland aquatic habitat, including riparian terrestrial habitat and provide
for greater overall instream and wetland habitat complexity and quality. One main component, stream
enhancement, will serve as the dominant input for achieving this goal.
The objectives are to exclude livestock in their entirety from the easement area and install plantings
designed to maintain vertical stability, lateral stability and habitat, as well as revegetate and supplement
those areas lacking suitable vegetation along the easement area. Ultimately, this supplemental planting
will provide opportunities for the filtration of pollutants and nutrients prior to entering the stream channel
as well as, the stabilization of sediment along the associated stream banks.
Final Mitigation Plan Page
UT Altamahaw Creek, Alamance County, NC 3
Prepared by Ecological Engineering. LLP
4.0 Existing Conditions
The UT Altamahaw Creek Site is situated in northern Alamance County. It covers approximately 3.6
acres of riparian land situated between two pastures and is immediately downstream of a 4.3-acre
agricultural pond. As previously mentioned, livestock have complete access to the riparian area, as well as
the two stream channels. The entire area, including the stream channels has been impacted from current
landuse conditions. Photographs of the area are provided in Appendix 1.
The UT Altamahaw Creek Site is situated within the Piedmont physiographic province. Elevations range
from approximately 625 feet to 640 feet above Mean Sea Level. According to the Natural Resources
Conservation Service (MRCS), its underlying soils are mapped as Worsham sandy loam (2 to 6 percent
slopes). Worsham sandy loam is formed from alluvium and/or colluvium over saprolite derived from
granite or gneiss. It is common along depressions and classified as poorly drained (NRCS, 2009).
Worsham sandy loam is considered a Hydric A soil in Alamance County (Gregory, 2000). It has a
moderate water capacity and depth to groundwater is usually between 0 and 12 inches, although likely
deeper at the Project Site due to stream incision.
The following table provides a summary of the existing conditions at the Project Site. An aerial
photograph is provided as part of Figure 2.
Table 2. Existing Conditions Summary
UT Altamahaw Creek- SCO Project Number 09-0762301, EEP Project Number 92837
Ph sio ra hic Province Piedmont County Alamance
River Basin Name Cape Fear Property Owner Name Charles Hurse
USGS 8-digit HUC 03030002 Propert_y Owner Contact Info 336 584-1377
USGS 14-digit HUC 03030002030010 Stream #1 (Main Channel Name UT Altamahaw Creek
NCDW Subbasin 03-06-02 Drainage Area 0.51 s q. mi. 334 acres
Underlying Mapped Soils Worsham sand loam NCDW Score 44.25 & 46.75 (Perennial)
Drainage Class Poorly drained Ros en Classification C/E 5
H dric Status A Stream #2 (Tributary) Name UT to UT Altamahaw Creek
Sloe 0-3% Drainage Area 0.39 s q. mi. 251 acres
Available Water Ca aci Moderate NCDW Score 39.25 (Perennial)
FEMA Classification Zone AE lower end Ros en Classification C/E 5
Native Vegetation Observed Green ash (Fraxinus pennsylvanica), white oak (Quercus alba), northern red oak (Quercus
rubra), sweetgum (Liguidambar styracii lua), tulip poplar (Liriodendron tulipifera), mockernut
hickory (Carya tomentosa), sycamore (Platanus occidentalis), willow oak (Quercus phellos),
blackgum (Nyssa sylvatica), ironwood (Carpinus caroliniana), red maple (Acer rubrum),
boxelder (Acer negundo), black willow (Salix nigra), Eastern red cedar (Juniperus virginiana),
flowering dogwood (Corpus florida), American holly (Ilex opaca), grape (Vitis sp.), poison ivy
(Toxicodendron radicans), greenbrier (Smilax sp.), thistle (Carduus sp.), blackberry (Rubus
s
Exotic Vegetation Observed Tree-of-heaven (Ailanthus altissima) - limited number
Chinese rivet Li strum sinense - limited number
4.1 Jurisdictional Resources
Jurisdictional resources at the Project Site were delineated on July 22, 2009 and verified by the US Army
Corps of Engineers (USACE) on November 5, 2009. Delineations were based on protocols described
within the 1987 Corps of Engineers Wetlands Delineation Manual and subsequent updates. Based on our
findings and concurrence by the USACE, there are 0.026 acres of wetlands and 1,477 linear feet of
perennial surface waters within the Project Area. Additional jurisdictional information is provided in
Appendix 2.
Final Mitigation Plan Page
UT Altamahaw Creek, Alamance County, NC 4
Prepared by Ecological Engineering, LLP
4.2 Soil Assessment
Soil samples were collected and submitted to the NC Department of Agriculture and Consumer Services
(NCDA&CS), Agronomic Division Soil Testing Section in September 2009. These samples were taken
from randomly selected areas with the easement area. According to the NCDA&CS, recommendations for
soil enhancement include the addition of 80 to 120 lbs/acre of nitrogen (N), 20 to 80 lbs/acre of phosphate
(P2O5) and 0 to 20 lbs/acre of potash (K2O). No lime enhancements were recommended. The full test
results are provided in Appendix 3.
4.3 FEMA Information
The UT Altamahaw Creek Site is located on Panel 8858 of Map Number 3710885800J of the National
Flood Insurance Program Flood Insurance Rate Map (FIRM), dated September 6, 2006. A small portion
of the downstream end of the Project Site is situated within a backwater finger of a Federal Emergency
Management Agency (FEMA) 100-year floodplain. Since implementation work at the Project Site
involves only enhancement planting, no changes will occur to the existing FEMA model.
Final Mitigation Plan Page
UT Altamahaw Creek. Alamance County. NC 5
Prepared by Ecological Engineering. UP
5.0 Reference Study
Based on conversations between EEP and Ecological Engineering, it was determined that the
supplemental planting would follow species types consistent with the description provided by Schafale
and Weakley (1990) of the Piedmont Bottomland Forest Community. This community was selected due
to its overall topographic position, watershed size and species composition. According to Schafale and
Weakley (1990), it is described as occurring on floodplain ridges and terraces other than active levees
adjacent to the river channel. The hydrology is palustrine with intermittent flooding and the underlying
soils consist of various alluvial soils. Its overall variation in wetness is related to the existing height of
ridges and terraces and the overall degree of channel incision. Each site varies due to different alluvial
material and its effect on soil fertility (Schafale and Weakley, 1990).
The following description is taken in its entirety from Schafale and Weakley (1990). Common species
occurring in the Piedmont Bottomland Forest Community include tulip poplar (Liriodendron tulipifera),
sweetgum (Liquidambar styraciua), cherrybark oak (Quercus pagoda), swamp chestnut oak (Quercus
michauxii), American elm (Ulmus americana), sugarberry (Celtis laevigata), green ash (Fraxinus
pennsylvanica), loblolly pine (Pinus taeda), shagbark hickory (Carya ovata) and bitternut hickory (Carya
cordiformis). Understory species include ironwood (Carpinus caroliniana), southern sugar maple (Acer
floridanum), red maple (Acer rubrum), flowering dogwood (Corpus Florida), American holly (Ilex opaca)
and paw paw (Asimina triloba). Shrubs include species such as painted buckeye (Aesculus sylvatica),
strawberry bush (Euonymus americanus) and occasional dense thickets of giant cane (Arundinaria
gigantea). This description will serve as the general reference community for the planting plan.
Final Mitigation Plan Page
UT Altamahaw Creek, Alamance County, NC 6
Prepared by Ecological Engineering, LLP
6.0 Restoration Plan
Implementation of the plan will require supplemental riparian buffer planting, auxiliary spillway
enhancement immediately outside of the easement area and design of a modified level spreader to diffuse
surface runoff in the vicinity of the existing stream crossing. Figure 3 depicts a description of the
proposed design.
6.1 Soil Amendments
Soil amendments will ensure suitable growth opportunities for the trees, shrubs and associated temporary
seed mix. Based on conversations with the NC Cooperative Extension Service (Keith Wood, Pers.
Comm., 2009), fertilizer recommendations include (1) 150lbs of 33-0-0 pellet fertilizer per acre and (2)
150 lbs of 18-46-0 pellet fertilizer per acre. The following table provides detailed soil amendment
information per Zone. Herbicide applications are discussed in detail in Section 6.3.1.
Table 3. Soil Amendment Summary per Zone
UT Altamahaw Creek- SCO Project Number 09-0762301, EEP Project Number 92837
Zone 1- Streamside Area Acres 0.5
Mechanical
Treatment Approx.
Date Ground
Cover
Fabric Mulch
Type Mulch
Density /
Thickness Nutrient
Amendments Nutrient
Total lbsr
n/a 7/10 -12/10 n/a n/a n/a n/a n/a
Subtotal n/a
Zone 2 - Semi-Forested Area Acres 2.1
Mechanical
Treatment Approx.
Date Ground
Cover
Fabric Mulch
Type Mulch
Density /
Thickness Nutrient
Amendments Nutrient
Total lbs
Herbicide 7/10-10/10 n/a n/a n/a n/a n/a
n/a 7/10 -12/10 n/a n/a n/a Pellet Fertilizer
33-0-0 400
n/a 7/10 -12/10 n/a n/a n/a Pellet Fertilizer
18-46-0 400
Subtotal 800
Zone 3 - O en Area Acres 1.0
Mechanical
Treatment Approx.
Date Ground
Cover
Fabric Mulch
Type Mulch
Density /
Thickness Nutrient
Amendments Nutrient
Total lbs
Herbicide 7/10-10/10 n/a n/a n/a n/a n/a
n/a 7/10 -12/10 n/a n/a n/a Pellet Fertilizer
33-0-0 225
n/a 7/10 -12/10 n/a n/a n/a Pellet Fertilizer
18-46-0 225
Subtotal 450
Zone 4 - Wetland Area Acres <0.1
Mechanical
Treatment Approx.
Date Ground
Cover
Fabric Mulch
Type Mulch
Density /
Thickness Nutrient
Amendments Nutrient
Total lbs
n/a 7/10 -12/10 n/a n/a n/a n/a n/a
Subtotal n/a
Total 1,250 4.6
Notes: ` Herbicide applications will only be performed in areas exhibiting non-native species.
Final Mitigation Plan Page
UT Altamahaw Creek. Alamance County. NC 7
Prepared by Ecological Engineering. UP
6.2 Planting Plan
The planting plan for the Project Site will provide post-construction erosion control and habitat
enhancement. It will also attempt to blend existing vegetative communities into the recently enhanced
areas. Plantings along the riparian areas will include native species appropriate for the Piedmont
physiographic province and the Project Site. A variety of trees and shrubs will be planted to provide cover
and habitat for wildlife, as well as soil stabilization. Natural plant community enhancement will follow
the description of the Piedmont Bottomland Forest Community by Schafale and Weakley (1990).
Prior to the planting of trees and shrubs, any disturbed areas associated with the Project Site will be
seeded first with a temporary seed mix. This mix will include one of the following seed types:
• grain rye (Secale cereale);
• brown-top millet (Panicum ramosum);
• German millet (Setaria italica); or
• orchard grass (Dactylis glomerata).
The seed material will be selected according to the time period selected for implementation. Currently,
implementation is proposed for the late summer, fall and winter of 2010. Table 4 summarizes preferred
seed types, application rates and planting periods.
Table 4. Temporary Seeding Summary
UT Altamahaw Creek- SCO Project Number 09-0762301, EEP Project Number 92837
Temporary Seeding Throu hout Disturbed Areas Acres 0.71
Year round Secale cereale Herb Grain a 130 lbs/ac Single
May - September Panicum ramosum Herb Brown to millet 40 lbs/ac species to
May - September Setaria italica Herb German millet 25 lbs/ac be
Se tember - March Dac lis lomerata Herb Orchard grass 15 lbs/ac applied
No permanent seed mix will be applied. As previously mentioned, all areas exhibiting disturbance will be
planted with a temporary seed mix. These areas include hardened stabilization along the auxiliary
spillway and construction of a level spreader, neither requiring permanent vegetation cover. The
remainder of the easement area will be planted with trees and shrubs. Due to the existing conditions,
mechanized soil enhancement is not proposed.
The easement area has been divided into four vegetated zones. These zones were identified based on
landscape position, hydrology and existing cover. Zone 1, also referred to as the "streamside area," is
situated along the tributaries and covers the area from bankfull outward approximately six feet. Zone 2
covers the "semi-forested areas" and Zone 3 covers the "open areas" along the easement location. Zone 4
includes the small "wetland area" near the downstream end of the Project Area. Table 5 provides a
summary of the species recommended for planting within the zones. The table also includes species
numbers, types, density and desired spacing.
Final Mitigation Plan Page
UT Altamahaw Creek. Alamance County, NC g
Prepared by Ecological Engineering, LLP
Table 5. Proposed Planting Summary
UT Altamahaw Creek- SCO Project Number 09-0762301, EEP Project Number 92837
Scientific Name Common Name
I
Number of
Individuals
Type
Density
Spacing
Zone 1: Streamside Area
Alnus serrulata T alder 200 Tublin
Cornus amomum Silky dogwood 600 Live stake 4840 3 feet on
Salix ni a Black willow 600 Live stake stems/acre center
Sambucus canadensis Elderberry 500 Live stake
Zone 1 Total 1900
Zone 2: Semi-Forested Area
Asimina triloba Paw paw 64 Bare root
Car inus caroliniana Ironwood 64 Bare root
Ca rya ovata Shagbark hickory 64 Bare root
Celtis laevi ata Sugarberry 64 Bare root
Cornus orida Flowering dogwood 64 Bare root 300 12 feet
Fraxinus en lvanica Green ash 64 Bare root stems/acre on center
Ilex o aca American holly 64 Bare root
uercus michauxii Swam chestnut oak 64 Bare root
uercus alcata var. a odae oia Che bark oak 64 Bare root
Ulmus americana American ehn 64 Bare root
Zone 2 Total 640
Zone 3: Open Area
Asimina triloba Paw paw 68 Bare root
Car inus caroliniana Ironwood 68 Bare root
Ca rya ovata Shagbark hickory 68 Bare root
Celtis laevi ata Sugarberry 68 Bare root
Cornus orida Flowering dogwood 68 Bare root 680 8 feet on
Fraxinus en lvanica Green ash 68 Bare root stems/acre center
flex o aca American holly 68 Bare root
uercus michauxii Swam chestnut oak 68 Bare root
uercus alcata var. a odae oia Che bark oak 68 Bare root
Ulmus americana American elm 68 Bare root
Zone 3 Total 680
Zone 4: Wetland Area
Alnus serrulata T alder 6 Tublin
680

feet on
8
Ce halanthus occidentalis Buttonbush 6 Tublin stems/ acre center
Salix ni a Black willow 6 Tublin
Zone 4 Total 18
Project Total 3718
The planting of subcanopy and shrub species will dominate Zone 1. Due to the location and the flooding
regime, these species must be conducive to periodic flooding. Species such as black willow, silky
dogwood (Corpus amomum), tag alder and elderberry (Sambucus canadensis) will be planted. These
species will be inserted as live stakes, except for tag alder, which will be planted as a tubling.
Zones 2 and 3 will be planted with the same mix of species with the difference being density. Zone 2
covers the semi-forested areas of the easement while Zone 3 includes the open areas. Species proposed
are compatible with the reference community discussed in Section 5.0 and known to be available with
local suppliers. They include paw paw, ironwood, shagbark hickory, sugarberry, flowering dogwood,
green ash, American holly, swamp chestnut oak, cherrybark oak (Quercus falcata var. pagodaefloia) and
American elm. The planting of both zones is considered supplemental since vegetation currently exists.
The density proposed in Zone 2 is 300 stems per acre (approximately 12-foot on center) and Zone 3 is
680 stems per acre (8 feet on center).
Final Mitigation Plan Page
UT Altamahaw Creek, Alamance County, NC 9
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Due to the small total area of Zone 4, less than 20 individual stems of tag alder (Alnus serrulata),
buttonbush (Cephalanthus occidentalis) and black willow will be planted as supplemental species. The
proposed density is 680 stems per acre (every 8 feet on center). These species are considered hydrophytic
species, capable of undergoing extended periods of inundation or saturation. Tublings are the preferred
plant type.
Vegetation will be planted in a random fashion in an effort to mimic natural plant communities.
Colonization of local herbaceous vegetation will inevitably occur, which will provide additional soil
stability. Planting stock will be culled to remove inferior specimens, allowing only healthy, viable stock
to be planted at the Project Site. Plantings will be dormant and will be performed to the extent practicable
between November 3`d and March 30d'.
6.3 Invasive Species Management
63.1 Vegetative Species
Invasive species observed within the easement area include Chinese privet (Ligustrum sinense) and tree-
of-heaven (Ailanthus altissima). If left unrestricted, these species could become the dominant species
within and surrounding the Project Site. Therefore, steps must be followed to ensure that these species are
controlled to a point where they do not provide competition for native vegetative species.
Control methods are widely variable concerning species types and density. Invasive species within the
Project Site are competing with native vegetation; however, they are in the process of being controlled by
existing landuse variables, such as cattle browse and periodic mowing. Once cattle are restricted from the
area and the site is allowed to undergo natural succession, this vegetation will compete with native and
planted vegetation.
Young seedlings (no more than 0.5 inches in diameter) of Chinese privet and tree-of-heaven can be
effectively controlled by hand-pulling. Stems up to 2 inches in diameter can be manually removed by
tools designed for this purpose. Larger plants can be killed by spraying the foliage with a 2.0 percent
solution of glyphosate or triclopyr and a 0.5 percent nonionic surfactant. Ideally, the plants should be
sprayed in the late fall or early spring when temperatures are above 65 degrees Fahrenheit and many
native species are dormant. As long as the ground is not frozen, this shrub can also be killed by cutting it
down within 6 inches of the ground and immediately spraying the freshly cut stump with a 50 percent
solution of triclopyr. All treatments should be followed up the following year to monitor and control basal
sprouts and root suckers (Smith, 2008).
The construction contractor will provide mechanized removal for stems of Chinese privet and tree-of-
heaven. These individuals will be removed in their entirety and disposed in an appropriate manner. It is
anticipated that invasive species management will occur throughout the monitoring period. As seedbeds
and their associated soils are disturbed, it is likely that other invasive species may appear within the
Project Site. Periodical assessments will be conducted to determine if these species are posing a threat to
native population levels. The threats will be determined on an annual basis as well as, their remedial
activities, as necessary.
63.2 Non-Vegetative Species
Evidence of beaver activity was observed immediately downstream of the easement area. This species,
though not technically classified as an invasive species, can significantly affect the overall success of the
project. EEP will contract with the NCWRC or other appropriate entity to remove and/or relocate the
existing beavers from the Project Site during the implementation and monitoring time periods.
Final Mitigation Plan Page
UT Altamahaw Creek, Alamance County, NC 10
Prepared by Ecological Engineering, LLP
6.4 Spillway Enhancement
Based on the contract signed between EEP and the property owner, EEP is providing a one-time
enhancement to the existing emergency spillway located immediately south of the easement area.
Floodflows from the pond and sheetflow from the adjacent pasture have caused severe erosion along the
entire length of the current spillway. Enhancement activities will include lateral and vertical shaping and
the placement of rip rap underlain by filter fabric under its entire length. A rip rap dissipater basin will be
constructed adjacent to the existing stream channel. This basin will evenly distribute flows into the
channel and floodplain area.
6.5 Sheetflow Diversion
Sheetflow diversion is needed along the northern side of the easement area in the vicinity of the existing
stream crossing. Current conditions denote a small rill that has developed through this area that is
contributing large quantities of sediment and livestock pollutants into the adjacent stream channel. This
diversion will consist of a modified level spreader that will evenly distribute flows across the floodplain
area. Once implemented, the diversion will serve to filter excess sediment and pollutants prior to entering
the stream channel.
Final Mitigation Plan Page
UT Altamahaw Creek. Alamance County'. NC 1 1
Prepared by Ecological Engineering. LLP
7.0 Performance Criteria
Performance criteria set forth for this project will be provided according to current EEP monitoring
criteria and format. It will cover only vegetation assessments.
7.1 Vegetation
Vegetation will be assessed using several variables including plot layouts, transects and/or any other
methods pertinent to determining vegetation success. The Mitigation Plan will outline these variables in
detail. Stem counts will be conducted within strategically placed vegetation plots. The plots locations will
be determined once implementation has been completed. Photos will also be provided as part of this task.
One this is complete, all information will be summarized with the stream assessment information and
inserted into the yearly monitoring report.
7.2 Schedule and Reporting
Monitoring reports will be submitted to the regulatory agencies on an annual basis. The first-year of
monitoring will include two submittals; the As-Built drawings and the First Year Annual Monitoring
Report. All drawings and monitoring will follow EEP protocols established during the project period. It is
understood that EEP will coordinate any necessary monitoring report submittals with the regulatory
agencies. If the monitoring reports indicate any deficiencies in achieving the success criteria on schedule,
EEP will coordinate with the resource agencies, as applicable, to determine the extent of remedial actions
necessary. In some cases, EEP may be required to submit remedial action plan, as necessary, as part of the
annual monitoring report. Vegetative monitoring will be conducted during the late summer months
(growing season) of each monitoring year. Monitoring reports will be provided no later than December
15. The proposed schedule is provided below detailing the monitoring dates.
Proposed Monitorine Schedule
2010 Complete construction/planting activities.
2011 Complete Year One Monitoring.
January 2012 Submit Year One Monitoring Report.
2012 Complete Year Two Monitoring.
January 2013 Submit Year Two Monitoring Report.
2013 Complete Year Three Monitoring.
January 2014 Submit Year Three Monitoring Report.
2014 Complete Year Four Monitoring.
January 2015 Submit Year Four Monitoring Report.
2015 Complete Year Five Monitoring.
January 2016 Submit Year Five Monitoring Report.
Final Mitigation Plan Page
UT Altamahaw Creek, Alamance County, NC 12
Prepared by Ecological Engineering, LLP
8.0 References
Environmental Laboratory, 1987. Corps of Engineers Wetlands Delineation Manual; Technical Report Y-
87-1. United States Army Engineer Waterways Experiment Station, Vicksburg, MS.
Federal Emergency Management Agency (FEMA), 2006. National Flood Insurance Program, Flood
Insurance Rate Map. Map Number 3710885800J. Panel Number 8858. Effective Date September
6, 2006. Available http://www.ncfloodmaps.com.
Gregory, James D., 2000. Hydric Soils and Growing Season: Wetland Delineation Data for North
Carolina. Department of Forestry, NC State University, Raleigh, NC.
NC Department of Agriculture and Consumer Services (NCDA&CS), 2009. Soil Test Report No. 02184.
Agronomic Division. Available http://www.ncapr.jzov/agronomi/.
NC Department of Environment and Natural Resources, Division of Water Quality, 2005. Basinwide
Planning Program :: 2005 Cape Fear River Basinwide Water Quality Plan. Available
http://h2o.enr.state.nc.us/basinwide/draftCPFApril2OO5.htm.
North Carolina Division of Water Quality (NCDWQ), 2006. Stream Identification Form, Version 3.1,
Effective February 28, 2005. Available at: http://h2o.enr.state.nc.us/ncwetlands/documents.
NC Division of Water Quality (NCDWQ), 2005. Identification Methods for the Origins of Intermittent
and Perennial Streams, Version 3.1. North Carolina Department of Environment and Natural
Resources, Division of Environmental Management; Raleigh, NC.
NC Division of Water Quality (NCDWQ), 1995. Guidance for Rating the Values of Wetlands in North
Carolina - 4t' Version. North Carolina Department of Environment and Natural Resources,
Division of Environmental Management; Raleigh, NC.
Piedmont Triad Council of Government (PTCOG), 2008. Little Alamance, Travis and Tickle Creek
Watershed Restoration Plan. Prepared for and Funded by EEP. Available:
http://www.nceep.net/pa e? s/lwplanning htm.).
Radford, A.E., H.E. Ahles and C.R. Bell, 1968. Manual of the Vascular Flora of the Carolinas. University
of North Carolina Press, Chapel Hill, NC.
Schafale, M.P. and A.S. Weakley, 1990. Classification of the Natural Communities of North Carolina, A
Third Approximation. North Carolina Natural Heritage Program, Division of Parks and
Recreation, Department of Environment, Health and Natural Resources, Raleigh, NC.
Smith, Cherri, 2008. Invasive Exotic Plants of North Carolina. NC Department of Transportation,
Raleigh, NC. 189 pp.
USDA Natural Resources Conservation Service (MRCS), 2009. Map Unit Descriptions and Soil Maps.
Available http•//www websoilsurveys.nres.usda.gov/app/WebSoilSurvey.aspx.
Wood, Keith, 2009. Personal Communication on October 28. NC Cooperative Extension Service.
Final Mitigation Plan Page
UT Altamahaw Creek. Alamance County. NC 13
Prepared by Ecological Engineering. LLP
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UT Altamahaw Creek Slte
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GUILFORD ') ALAMANCE
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Prepared By: Ecological Engineering, LLP
128 Raleigh Street cobgical Project Site Vicinity Map
Holly Springs, NC 27540 n ineeringL
[phone] ? UT Alta mahaw Creek Site
FIGURE
Prepared For: NCEEP Alamance County, NC 1
2728 Capital Boulevard State Construction Office Project No. 09-0762301
Suite 1 H 103 Ec(Ay'Stell 1
Raleigh, NC 27604 October 29, 2009
Source: USGS Quadrangle Maps (Ossipee and Lake Burlington Quads)
Appendix 1
Site Photographs
UT Altamahaw Creek Site Photographs - Taken July 2009
PROW-M-w- -3
9
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Appendix I. Site Photographs
UT Altamahaw Creek. Alamance County. NC
Prepared by Ecological Engineering, LLP
Photo 1.
Facing southwest at the conservation
easement area along UT Altamahaw Creek.
The existing crossing is immediately outside
of the photograph to the left.
Photo 2.
Facing south at the conservation easement
area along UT Altamahaw Creek.
Photo 3.
Facing northeast (upstream) along UT
Altamahaw Creek from the existing stream
crossing.
Page
I
Photo 4.
Facing southwest (downstream) along UT
Altamahaw Creek from the existing stream
crossing.

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fir..
Photo 5.
Facing southwest along the emergency
spillway situated immediately outside of the
conservation easement area.
Photo 6.
Facing northeast along the emergency
spillway situated immediately outside of the
conservation easement area.
Appendix 1. Site Photographs Page
UT Altamahaw Creek, Alamance County, NC
Prepared by Ecological Engineering, LLP
Photo 7.
Facing northwest at the scour associated with
the emergency spillway within the
conservation easement area.
Photo 8.
Facing northeast along the conservation
easement area within the existing fence.
Photo 9.
Facing west at the existing pipe that underlies
the stream crossing.
Appendix 1. Site Photographs Page
UT Altamahaw Creek. Alamance County, NC 3
Prepared by Ecological Engineering, LLP
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Photo 10.
Facing east across the jurisdictional wetland
towards Wetland Point A4.

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Appendix 1. Site Photographs
UT Altamahaw Creek, Alamance County, NC
Prepared by Ecological Engineering, LLP
Photo 12.
Facing southwest across the
jurisdictional wetland at Wetland Point
A6 and the UT Altamahaw Creek
stream channel.
Page
4
Photo 13.
Facing southwest (downstream) along
the UT Altamahaw Creek Stream
Segment #1 towards the existing
culvert.
Photo 14.
Facing southeast (upstream) along the
UT Altamahaw Creek Stream Segment
#2 approximately 200 feet from the
wetland area.
Photo 15.
Facing south (upstream) along UT
Altamahaw Creek Stream Segment #3
near the current easement boundary.
Appendix 1. Site Photographs Page
UT Altamahaw Creek. Alamance County, NC 5
Prepared by Ecological Engineering. LLP
Appendix 2
Jurisdictional Determination
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action td. SAW2009-02079 County: Alamance U.S.G.S. Quad: Lake Burlington
NOTIFICATION OF JURISDICTIONAL DETERMINATION
Property Owner/Agent: G. Lane Sauls. Jr.
Address: Ecological Engineering, LLP
128 Raleigh Street
Holly Springs, NC 27540
Telephone No.: 919-557-0929
Property description:
Size (acres) -4 acres Nearest Town Altamahaw
Nearest Waterway Altamahaw Creek River Basin Cape Fear
USGS tIUC 0303002 Coordinates N -79.47856 W 36.17751
Location description Proieel area located on the southeast portion of the property at 2884 Altamahaw Union Ridge Road
(SR1002). Green Level, Alamance County, NC.
Indicate Which of the Following Apply:
A. Preliminary Determination
Based on preliminary information, there may be wetlands on the above described property. We strongly suggest you have this
property inspected to determine the extent of Department of the Army (DA) jurisdiction. To be considered final, a jurisdictional
determination must be verified by the Corps. This preliminary determination is not an appealable action under the Regulatory
Program Administrative Appeal Process ( Reference 33 CFR Part 331).
B. Approved Determination
'there are Navigable Waters of the United States within the above described property subject to the permit requirements of
Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our
published regulations, this determination may be relied upon for a period not to exceed five years from the date of this
notification.
X There are waters of the U.S. including wetlands on the above described project area subject to the permit requirements of Section
404 of the Clean Water Act (CWA)(33 USC § 1344). Unless there is a change in the law or our published regulations, this
determination may be relied upon for a period not to exceed five years from the date of this notification.
We strongly suggest you have the waters of the U.S. including wetlands on your project area delineated. Due to the size of
your property and/or our present workload. the Corps may not be able to accomplish this wetland delineation in a timely manner.
For a more tirnely delineation, you may wish to obtain a consultant. To be considered final, any delineation must be verified by
the Corps.
The waters of the U.S. on your property have been delineated and the delineation has been verified by the Corps. We strongly
suggest you have this delineation surveyed. Upon completion, this survey should be reviewed and verified by the Corps. Once
verified, this survey will provide an accurate depiction of all areas subject to CWA jurisdiction on your property which, provided
there is no change in the law or our published regulations, may be relied upon for a period not to exceed five years.
X The waters of the U.S. including wetlands have been delineated and surveyed and are accurately depicted on the plat signed
by the Corps Regulatory Official identified below on 9 December 2009. Unless there is a change in the law or our published
regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification.
There are no waters of the U.S., to include wetlands, present on the above described property which are subject to the permit
requirements of Section 404 of the Clean Water Act (33 USC 1344). Unless there is a change in the law or our published
regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification.
The property is located in one of the 20 Coastal Counties subject to regulation under the Coastal Area Management Act (CAMA).
You should contact the Division of Coastal Management in Washington. NC, at [phone] to determine their requirements.
Placement of dredged or fill material within waters of the US and/or wetlands without a Department of the Army permit may
constitute a violation of Section 301 of the Clean Water Act (33 USC § 1311). If you have any questions regarding this determination
and/or the Corps regulatory program, please contact Steve Kichefski at 919-554-4884 ext. 35.
C. Basis For Determination
There are two Perennial streams and one abutting wetland The two perennial streams are unnamed tributaries to
Altamahaw Creek and arc relatively permanent waters (RPW) The unnamed tributaries flow to the named RPW of
Altamahaw Creek. Altamahaw Creek flows to the Haw Riyertia traditionally navigable water (TNW). which is a tributary to
the Cape Fear Rivera navigable water of the United States. The Ordinary High Water Marks (OHWMs) of the streams were
indicated by the following Physical characteristics: Bed and banks, clear natural line impressed on the bank, shelving, scour.
The wetland meets the hydrophytic vegetation wetland hydrology and hvdric soil criteria of the 1987 Corns of Engineers
Wetland Delineation Manual and is contiguous with one of the unnamed tributaries on the site
D. Remarks
Site is to be used for Stream Enhancement (Type 11) by the EEP Andy Williams and I met Lane Sault Jr of Ecological
Engineering. LLP on-site for the Jurisdictional Determination Sec attached map for the approximate locations of
Jurisdictional Waters described in this determination An overflow channel from a pond in the northeast portion of the
Proiect area was inspected and determined to be a nonjurisdictional drainage feature
E. Appeals Information (This information applies only to approved jurisdictional determinations as indicated in R.
above)
This correspondence constitutes an approved jurisdictional determination for the above described site. If you object to this
determination, you may request an administrative appeal under Corps regulations at 33 CFR part 331. Enclosed you will find a
Notification of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this determination you
must submit a completed RFA form to the following address:
District Engineer, Wilmington Regulatory Division
Attn: Steve Kichefski, Regulatory Specialist,
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal
under 33 CFR part 331.5. and that it has been received by the District Office within 60 days of the date of the NAP. Should you
decide to submit an RFA form, it must be received at the above address by Februan• 8, 2010.
**It is not necessary to submit an RFA form to the District Office ifyou do not object to the determination in this correspondence.**
Corps Regulatory Official: A4 °
Date December 9, 2009
Expiration Date December 9. 2014
The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we continue to do so,
please complete the Customer Satisfaction Survey located at our webs ite ail 1..ltrg>ut IatorX_.usacesurvev.coin/ to complete the survey
onlinc.
Copy furnished:
Sue Homewood
North Carolina Department of Natural Resources
Division of Water Quality
585 Waughtown Street
Winston-Salem. NC 27107
Applicant: EEP- Agent: Lane Sauls, File Number: SAw2009402079 Date: December 9, 2009
Ecological En ineerin I,I.P
Attached is: See Section below
INITIAL PROFFERED PERMIT (Standard Pen-nit or Letter of A
permission)
PROFFERED PERMIT (Standard Permit or Letter of permission) B
PERMIT DENIAL C
APPROVED JURISDICTIONAL. DETERMINATION D
PRELIMINARY JURISDICTIONAL DETERMINATION E
SECTION I `- The following identifies your frights and options regarding an administrative appeal of the above.
decision Additional information may be found at http:/lwww.usace.army.millutetlfunetionslcwlcecwolreg or
Corps regulations at 33 CFR Part 331.
A: INITIAL PROFFERED PERMIT: You may accept or object to the permit.
• ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final
authorization. if you received a Letter of Permission (LOP). you may accept the LOP and your work is authorized. Your signature
on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the
permit. including its terms and conditions, and approved jurisdictional determinations associated with the permit.
• OBJECT: It-you object to the permit (Standard or LOP) because ofcertain terns and conditions therein, you may request that the
permit be modified accordingly. You must complete Section 11 of this form and return the form to the district engineer. Your
objections must be received by the district engineer within 60 days of the date of this notice, or you will forfeit your right to appeal
the permit in the future. Upon receipt of your letter, the district engineer will evaluate your objections and may: (a) modify the
permit to address all of your concerns. (b) modify the permit to address some of your objections, or (c) not modify the permit
having determined that the permit should be issued as previously written. Afler evaluating your objections. the district engineer
will send you a proffered permit for your reconsideration, as indicated in Section B below.
B: PROFFERED PERMIT: You may accept or appeal the permit
• ACCEPT: If you received a Standard Permit, you may sign the pen-nit document and return it to the district engineer for final
authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your signature
on the Standard Penn it or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the
pcrmiL including its terms and conditions, and approved jurisdictional determinations associated with the permit.
• APPEAL: If you choose to decline the proffered permit (Standard or LOP) because of certain terns and conditions therein, you
may appeal the declined permit under the Corps of Engineers Administrative Appeal Process by completing Section 11 of this form
and sending the form to the division engineer. This form must be received by the division engineer within 60 days of the date of
this notice.
C: PERMIT DENIAL: You may appeal the denial of a permit under the Corps of Engineers Administrative Appeal Process by
completing Section 11 of this form and sending the form to the division engineer. This form must be received by the division engineer
within 60 days of the date of this notice.
D: APPROVED JURISDICTIONAL DETERMINATION: You may accept or appeal the approved JD or
provide new information.
• ACCEPT: You do not need to notify the Corps to accept an approved JD. Failure to notify the Corps within 60 days of the date of
this notice. means that you accept the approved JD in its entirety, and waive all rights to appeal the approved 1D.
• APPEAL: Ifyou disagree with the approved JD, you may appeal the approved JD under the Corps of Engineers Administrative
Appeal Process by completing Section 11 of this form and sending the form to the district engineer. This form must be received by
the division engineer within 60 days of the date of this notice.
E: PRELIMINARY JURISDICTIONAL DETERMINATION: You do not need to respond to the Corps
regarding the preliminary JD. The Preliminary JD is not appealable. Ifyou wish, you may request an approved
JD (which may be appealed), by contacting the Corps district for further instruction. Also you may provide new
information for further consideration by the Corps to reevaluate the JD.
SECTION II - REQUEST FOR APPEAL or OBJECTIONS TO AN INITIAL PROFFERED PERMIT
REASONS FOR APPEAL OR OBJECTIONS: (Describe your reasons for appealing the decision or your
objections to an initial proffered permit in clear concise statements. You may attach additional information to
this form to clarify where your reasons or objections are addressed in the administrative record.)
ADDITIONAL INFORMATION: The appeal is limited to a review of the administrative record. the Corps
memorandum for the record of the appeal conference or meeting, and any supplemental information that the
review officer has determined is needed to clarify the administrative record. Neither the appellant nor the Corps
may add new information or analyses to the record. However, you may provide additional information to clarify
the location of information that is already in the administrative record.
POINT OF CONTACT FOR t7ESTIONS OR INF ORMATION:
If you have questions regarding this decision If you only have questions regarding die appeal process you
and/or the appeal process you may contact: may also contact:
Andrew Williams, Regulatory Project Manager Mr. Mike Bell, Administrative Appeal Review Officer
Raleigh Regulatory Field Office CESAD-ET-CO-R
U.S. Army Corps of Engineers U.S. Anny Corps of Engineers, South Atlantic Division
3331 Heritage Trade Drive, Suite 105 60 Forsyth Street. Room 9M15
Wake Forest, North Carolina 27587 Atlanta, Georgia 303031-8801
RIGHT OF ENTRY: Your signature below grants the right of entry to Corps of Engineers personnel, and any
government consultants, to conduct investigations of the project site during the course of the appeal process. You
will be provided a 15 day notice ofany site investigation, and will have the opportunity to participate in all site
investigations.
Date: Telephone number:
Signature of appellant or agent.
For appeals on Initial Proffered Permits and approved Jurisdictional Determinations send this form to:
District Engineer, Wilmington Regulatory Division, Attn:Andrew Williams, Project Manager, Raleigh
Regulatory Field Office, 3331 Heritage Trade Drive, Suite 105, Wake Forest, North Carolina 27587
For Permit denials and Proffered Permits send this form to:
Division Engineer, Commander, U.S. Army Engineer Division, South Atlantic, Attn: Mr. Mike Bell,
Administrative Appeal Officer, CESAD-ET-CO-R, 60 Forsyth Street, Room 9M15, Atlanta, Georgia
30303-8801
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Appendix 3
NCDA&CS Soil Test Results and Recommendations
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