HomeMy WebLinkAbout20150636 Ver 1_BPDP DRAFT_20150818Neville Farms Buffer and Nutrient Offset Bank Parcel
Development Plan
Jordan Lake Nutrient Strategy - Upper New Hope Subwatershed
Orange County, NC
August 11, 2015
Prepared by:
Watershed Investments NC, LLC
1630 Weatherford Circle
Raleigh, NC 27604
Phone: 919.533.9195
WATERSHED
Investments
1.0 INTRODUCTION ................................................................................ ............................... 1
1.1 SPONSOR ..................................................................................... ............................... 1
1.2 Project Location and Description ...................................................... ............................... 1
1.3 Directions to the Site ...................................................................... ............................... 1
Tract 1: Neville - Gambill Property ........................................................... ............................... 1
Tract2: McGee Property ........................................................................ ............................... 2
2.0 PROJECT SITE DESCRIPTION ............................................................... ............................... 2
2.1 Land Use ...................................................................................... ............................... 2
2.2 Watershed Setting .......................................................................... ............................... 3
2.2 Surface Hydrology and Watershed Area .............................................. ............................... 3
2.3 Surface Water Determination for the Site ............................................ ............................... 3
2.4 Floodplain Assessment ................................................................... ............................... 3
2.5 Geology & Soils ............................................................................. ............................... 4
2.6 Cultural Constraints ........................................................................ ............................... 5
2.8
Rare, Threatened and Endangered Species .......................................... ............................... 5
2.9
Existing /Historic Vegetation. .......................................................................................... 6
3.0
PROJECT PLANTING PLAN .................................................................. ............................... 6
3.1
Riparian Restoration Activities .......................................................... ............................... 6
3.2
Planting Plan. ............................................................................................................... 7
3.3
Riparian Preservation Activities ........................................................ ............................... 7
3.4
Site Preparation and Invasive Species ControL ..................................... ............................... 7
3.5
Easement Boundaries and Fencing .................................................... ............................... 7
4.0
PROJECT MONITORING AND PERFORMANCE STANDARDS ........................ ............................... 8
4.1
Project Monitoring Plan ................................................................... ..............................8
4.2
Adaptive Management Plan .............................................................. ............................... 8
4.3
Long Term Management Plan .......................................................... ............................... 8
5.0.
FINANCIAL ASSURANCE ...................................................................... ..............................9
6.0
MITIGATION POTENTIAL .................................................................... .............................11
6.1
Buffer Mitigation Potential ............................................................... .............................11
6.2
Nutrient Credit Potential .................................................................. .............................12
7.0 REFERENCES: ................................................................................................................. 14
LISTOF ATTACHMENTS ............................................................................. ............................... A
Neville Farms BPDP Watershed Investments NC
1.0 INTRODUCTION
The Neville Farms site (Site) Bank Parcel is part of Watershed Investment NC's Mitigation Banking
Instrument (MBI) for riparian buffer mitigation and nutrient offset credits pursuant to the Jordan Water
Supply Nutrient Strategy. The site shall be planned and designed encompassing land along Neville Creek, a
tributary to University Lake south of Chapel Hill in Orange County, NC.
For the purposes of this Bank Parcel Development Plan (BPDP) the Site is divided using the following
designations:
Tract 1 — Main project area on the north side of Neville Creek that is owned by the Neville -
Gambill Family
■ Tract 2 —Area south of Neville Creek that is owned by the McGee Family.
Though the properties are adjacent, the differentiation of the site is necessary based on land use, project
crediting, and for more clear referencing within this document.
The purpose of both tracts is to establish forest adjacent to surface water features to reduce nutrients that
flow into Neville Creek, University Lake, and ultimately, Jordan Lake. The project will have ancillary benefits
that include reducing sediment runoff, stabilizing banks, and improving aquatic and terrestrial habitat. Any
nutrient or riparian buffer credits generated from this restoration would be available within the Upper New
Hope Subwatershed of Jordan Lake.
1.1 SPONSOR
The Site is proposed by Watershed Investments NC (WINC) with Mike Herrmann as project manager.
Contact information for the WINC is provided below.
Watershed Investments NC
1630 Weatherford Circle
Raleigh, NC 27604
Phone: 919- 559 -6264
Attn: Mike Herrmann
Email: mherrmann (awatershedinvestmentsnc .net
1.2 Project Location and Description
Attachment A -Figure 1 provides the USGS 1:24,000 Topo map showing the location for the Site, nearby
roads, and the surrounding vicinity. Surface water drainage features at the Site feed into the Upper New
Hope subwatershed of Jordan Lake. The Site is in the Cape Fear River Basin approximately 3 miles
southwest of Chapel Hill, NC and one mile upstream of University Lake. More specifically, the Site's
longitude and latitude in decimal degrees are - 79.129 W and 35.892 N, respectively.
1.3 Directions to the Site
Tract 1: Neville- Gambill Property
i. From Raleigh, go West on I -40 and take the Hwy 54 -West Exit to Chapel Hill
ii. From Hwy -54, take the Jones Ferry Rd Exit, turn left to go South and proceed 0.9 miles.
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Neville Farms BPDP Watershed Investments NC
iii. Turn Right onto Old Greensboro Highway after passing University Lake. Proceed 1.8 miles. Site
entrance is on the left through a driveway right -of -way at address 1426 Old Greensboro Road,
Chapel Hill
Tract 2: McGee Property
i. Follow the above directions to Tract 1 and instead of turning onto the Neville - Gambill property
entrance proceed another 0.5 miles and turn left onto Bowden Road.
ii. Follow Bowden Road for 1.2 miles and turn Left onto Stansbury Road.
iii. Property is at the end of the road. Address is 2201 Stansbury Rd, Chapel Hill, NC
2.0 PROJECT SITE DESCRIPTION
2.1 Land Use
Attachment A -Figure 2 has a map of the Site while Table 2.1 provides a summary of Site conditions. The
Site is contained on two tracts: Tract 1 is farm owned by the Neville - Gambill Family and Tract 2 is a
residential parcel owned by John and Janine McGee's. Attachment A- Figure 2 provides a current aerial of
the Site while Attachment I contains on the ground photos of the site. These two properties are further
described below:
Tract 1— The 112 acre farm includes livestock pasture, woodlots, and hay production. The
proposed conservation easement is approximately 4.6 acres and is located on area dedicated to hay
production. Portions of the buffer currently have a narrow buffer of trees (10-15 ft) immediately
adjacent to the stream. The proposed reforestation is in the 100 year floodplain for Neville Creek.
Runoff from the Site flows directly to Neville Creek. Approximately 4.4 acres of land are proposed
for the generation of nutrient offset or buffer mitigation credit on this property (Note: As planned, a
0.25 acre portion of the conservation easement will extend beyond 200 ft. from the stream and not
be eligible for nutrient or buffer credit).
2. Tract 2 — This property is approximately 8.8 acres of residential land with the pervious areas kept in
fescue grass. The proposed conservation easement is approximately 1.7 acres. Portions of the
proposed easement area currently have a narrow forested buffer of 10 -15 ft. An area at the lower
end of the project site has grown over in blackberry and honeysuckle and are planned to be cleared
and reforested to help restore the native tree buffer. Surface water leaves the site directly through
drainage to Neville Creek.
Table 2.1. Proposed project properties conditions summary.
Tract 1 Information
Site Owner
Property Size
Land Use
Length of Inadequately Forested
jurisdictional Stream / Mitigation Area(Ac)
Tract 2 Information
Site Owner
Property Size
Nettie Neville Gambill
112 acres
Hay (fescue)
*1,200 ft / 4.4 ac
John and Janine McGee
8.8 acres
2
Source
Orange Co. Tax Records
Orange Co Tax Records
Site Visit
GIS, Orange Co Soils Survey,
and Site Visit
Source
Orange Co. Tax Records
Orange Co Tax Records
Neville Farms BPDP Watershed Investments NC
Land Use Grass (fescue) Site Visit
Length of Inadequately Forested *920 ft / 1.7 ac GIS and Site Visit
jurisdictional Stream /Mitigation Area (Ac)
*Note: Estimates are preliminary and will be re- evaluated with the project survey.
2.2 Watershed Setting
Attachment A -Figure 3 provides a map of the Site in context with its watershed setting. Neville Farms is in
Jordan Lake's Upper New Hope subwatershed. In addition, the Site is upstream of University Lake, a
designated Water Supply Watershed. University Lake is used by the Orange County Water and Sewer
Authority to provide water to municipalities that include Chapel Hill and Carrboro. Table 2.2 provides
summary of watershed information on the Site.
Table 2.2. Site Watershed Information.
Watershed Unit
HUC 8
Jordan Subwatershed
Jordan Small Watershed ID
WBD 12 -Digit ID
WBD Name
NC DWR Watershed
Classifications
Number
03030002
Upper New Hope
03030002060070
030300020606
University Lake
Water Supply II
High Quality Water
Nutrient Sensitive Water
2.2 Surface Hydrology and Watershed Area
The surface water from the Site drains directly to Neville Creek at Assessment Unit (AU) 16- 41- 2- 2 -1 -(1)
which subsequently flows to University Lake and then Jordan Lake. As shown in Table 2.3, this AU was not
rated in NC DWR's 2014 Water Quality Assessment (NC DWR 2014).
Table 2.3. Neville Creek use classification for the project stream at the Site (Source: NC DWR 2014).
Assessment Unit I Surface Water Classification
16- 41- 2- 2 -1 -(1) I Not Rated
2.3 Surface Water Determination for the Site
Orange County is delegated authority by the NC Environmental Management Commission to conduct
determinations on the whether surface water features in their jurisdiction are surface waters and subject to the
buffer rules of the State found in 15A NCAC 02B .0295 Mitigation Program Requirements for Protection
and Maintenance of Riparian Buffers. Orange County Planning and Inspections assessed the Site and on
February 9th, 2015 provided their determination that the surface water features on the site are subject to the
Rule. Attachment B provides a copy of this determination.
2.4 Floodplain Assessment
The majority of the Site is in the floodplain. The project, however, will not affect areas of the stream and no
actions associated with the project are expected to be in conflict with the County or State floodplain
management requirements. Orange County's floodplain administrator was notified of the project and
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Neville Farms BPDP Watershed Investments NC
requested to review the proposed project activities and determine if additional actions are needed for project
approval.
Attachment C contains the Orange County Floodplain Manager's determination that the project "will not
require additional floodplain analysis as the reestablishment of vegetation is not deemed to create /impact
existing floodways." Further County staff issue "approval for the project from both a zoning and flood
permitting standpoint" (Orange County, 2015).
2.5 Geology & Soils
The Site is located in the Carolina Slate Belt Level 3 Ecoregion. According to from Griffin et. al (2002), this
region contains mineral rocks along with silty and silty clay soils. Also, low water yielding rock in the
ecoregion lead to streams drying up in the summer months.
Attachment A -Figure 4 provides a map of the soil at the Site. These soils data are summarized in Table
2.4. The predominant soils on the site are Congaree which are well drained loamy alluvium. These have a
seasonally high water table and are prone to flooding. Other soils on the site (Appling, Georgeville, and
Goldston) are deep, well drained, and have little organic matter. Slopes along the north of the Site contain
bedrock outcrops consistent with the Goldston soil series.
Table 2.4. Site Soil Types and Descriptions. (Source: USDA. 2015)
Soil Unit
Project Hydric Hydrologic
Soil Description
Area ( %) Soil Soil Group
ApC
Soils are found on slopes and ridges. Deep, well
Appling sandy
drained soils whose parent material consists of
loam, 6 to 10
19.0% No B
saprolite. These soils have little organic matter, are
percent slopes
not flooded or ponded, and with no saturation within
a depth of 72 inches.
Cp
Dominant soil for the site. The soil is found in flood
Congaree fine
plains with a parent material of loamy alluvium. Soils
sandy loam, 0
are moderate in organic matter, deep and moderately
to 2 percent
62.0% No C
well drained. Soil is frequently flooded with a water
slopes,
table depth of 39 inches during winter months.
frequently
flooded
GeB
Upland and interfluve soil. The parent material
Georgeville silt
consists of weathered argillite. The soils are deep and
loam, 2 to 6
9.0% No B
well drained. These soils have little organic matter,
percent slopes
are not flooded or ponded, and have no saturation
within a depth of 72 inches.
GeB
This soil is found on hillslopes and ridges. The
Georgeville silt
parent material consists of weathered argillite. The
loam, 6 to 10
4.5% No B
soils are deep and well drained. These soils have little
percent slopes
organic matter, are not flooded or ponded, and have
no saturation within a depth of 72 inches.
G1F
This soil is found on hillslopes and ridges. The
Goldston
parent material consists of weathered argillite. The
channery silt
o
5.5 /o No D
soils may have bedrock within 10 -20 inches of the
loam, 15 to 45
surface but are otherwise well drained. These soils
percent slopes
have little organic matter, are not flooded or ponded,
and have no saturation within a depth of 72 inches.
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Neville Farms BPDP Watershed Investments NC
2.6 Cultural Constraints
Cultural resources include historic and archeological resources located in or near the project parcel. The
evaluation of cultural focused primarily on the presence of cultural resources as determined by the North
Carolina State Historic Preservation Office (SHPO) and through field observations. The SHPO GIS Web
Service database did not reveal any listed or potentially eligible historic or archeological resources in the
proposed project area (NC SHPO 2015). No architectural structures or archeological artifacts have been
observed or noted during surveys of the site. The State Historic Preservation Office (SHPO) has been
notified of the proposed project and confirmed that their database contains no record of important cultural
resources in the easement area. A copy of their review and response letter is provided in Attachment D.
2.8 Rare, Threatened and Endangered Species
Plants and animals with a federal classification of endangered (E) or threatened (T) are protected under
provisions of Sections 7 and 9 of the Endangered Species Act of 1973, as amended. The US Fish and Wildlife
Service ( USFWS) database for Orange County, NC (updated 12/27/2012) lists the following one endangered
species classified as Current and 2 as Historic ( USFWS 2012):
• Dwarf wedgemussel (Alasmidonta hetemdon) -Current;
• Michaux's sumac (Rhus michauxii) —Historic;
• Smooth coneflower (Echinacea laevigata) - Historic;
The USFWS database also lists the Bald eagle (Haliaeetus leucocephalus) for the County. This species is
protected under the Bald and Golden Eagle Protection Act (BGPA) and prohibits take of bald and golden
eagles. No protected species or potential habitat for protected species was observed during preliminary Site
evaluations.
In addition to the USFWS database, the NC Natural Heritage Program (NHP) was contacted to determine
whether previously cataloged occurrences of protected species were mapped within one mile of the project
site. A copy of the correspondence with the NHP is included in Attachment E. Results from NHP indicate
the following two species have were observed in the year 1940 within a mile of the project area.
• Pursh's Wild- petunia (Ruellia purshiana) — A plant species with a status of Special Concern - Vulnerable
(SC -V) observed in 1940. Its habitat is woodlands, mostly over mafic or calcareous rocks (NHP
2014).
• Coppery Emerald (Somatochlora geoTiana) — A dragonfly SomatochlorageoTiana lacked specific location
information so it's observation has low accuracy but it has been observed in Orange County. This
species prefers "small, sand, forest streams" as habitat (Paulson 2011).
Pursh's Wild- petunia's habitat is predominantly woodland's and on rocks. Existing woodlands and rocks will
not be areas subject to planting activities with this project. The dragonfly species Somatochlorageor#ana habitat
is forested streams. Most of the Site's riparian areas have a narrow mature tree buffer. Planting activities will
remain outside of that buffer with tree planting activities associated with this mitigation project expanding on
the tree cover favored as habitat for this species. Based on initial site investigation and species habitat
preferences, no impacts to state protected species are anticipated as a result of the proposed project.
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Neville Farms BPDP Watershed Investments NC
2.9 Existing/ Historic Vegetation
The majority of Tract 1 is currently planted in fescue and rye grass for hay production. Tract 2 is a mostly
fescue lawn with a mix of other native and planted grasses. Most areas on both sides of Neville Creek have a
narrow (10 -15 ft) tree buffer adjacent to the stream that provides some buffer functions. This thin buffer
area has a mix of native trees (Gum, Red Cedar, Ironwood, Tulip Poplar, Pine) along with some invasive
shrubs (Chinese Privet, Autumn Olive). Historical imagery from 1993 confirms that this land use occurred
prior to the existence of buffer protection rules for the area (See Attachment A- Figure 5).
Table 2.5 provides a summary of the dominant woody vegetation found in the streamside buffer area. Based
on feedback from the Division of Water Resources staff, those areas with existing tree cover will be
considered as Buffer Preservation for mitigation purposes.
Table 2.5. Observed Native Tree and Shrub Species
Common Name
Scientific Name
Common Name
Scientific Name
Tulip Poplar
Liriodendmn tulipifera
Ironwood
Carpinus camliniana
Sweet Gum
Liquidambarstyraciva
Loblolly Pine
Pinus taeda
Red Cedar
Jumpers viTimana
Spicebush
Lindera ben .Zoin
Box Elder
AcerNegundo
Coralberrry
Symphoricarpos
arbiculatas
Invasive plants are present in the existing woodland buffer but are not predominant at the site. Table 2.6
lists invasive species observed at the site. Discussion on the control of existing invasive can be found in the
Project Planting Plan found in Section 3.
Table 2.6. Observed Invasive Species
Common Name
Scientific Name
Chinese Privet
Ligustrum sinense
Autumn Olive
Elaeagnus umbellate
Japanese Honeysuckle
Lonicerajaponica
3.0 PROJECT PLANTING PLAN
3.1 Riparian Restoration Activities
The restoration of plant communities within the Site will provide stabilization and improve water quality
within the parcel. The protected buffer easement will be planted with appropriate native species observed in
the surrounding forest and species known to occur in similar environments. The Tract 1 current land use is
predominantly hay (both fescue and rye grass) along with mostly fescue lawn mixed with other grasses for
Tract 2. No livestock will have access to the easement area. The buffered channels will provide water quality
and habitat functions within the Nutrient Sensitive Waters of Jordan Lake.
Some areas of the easement may require maintenance to prevent the establishment of invasive and /or exotic
species. Pre - planting treatment will be used to help remove these species limit the need for these maintenance
activities.
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Neville Farms BPDP Watershed Investments NC
3.2 Planting Plan
Revegetation of the Site will include planting bare root trees and controlling invasive species growth. To
achieve a minimum stem density of 260 stems /acre after 5 years, planting density will be at least 436
stems /acre on 10 foot x 10 foot spacing. Volunteer species at the Site may be considered by the Division to
county toward meeting these performance standards. The initial planting of bare root trees will occur in the
Fall/Winter of 2015/2016 when tree species are dormant. Recruitment of volunteer species in the floodplain
is anticipated due to forests that exist upstream and on the stream bank,
The Site consists predominantly of bottomlands which will be planted as Piedmont Alluvial Forest. When
planting, at least four (4) species from Table 3.1 will be selected for the site with no one species comprising
more than 50% of the total planted stems.
Table 3.1. Planned Tree Species for the Neville Farms Riparian Planting. (Note: Species availability may
result in the substitution of regionally appropriate native species.)
Common Name Scientific Name Common Name Scientific Name
Yellow Poplar Liriodendron tulipifera Swamp Chestnut Oak Qurercus michauxii
Eastern Redbud Cercis Canadensis Cherrybark Oak Quercus pagoda
Sycamore Platanus occidentalis Sycamore Platanus occidentalis
River Birch Betula nigra Tulip poplar Liriodendron tulipfera
Green Ash Fraxinus penn ylvanica
3.3 Riparian Preservation Activities
A narrow buffer exists on the site along portions of Neville Creek. This area was reviewed by the Division of
Water Resources and determined eligible for Buffer Preservation (see Attachment G). Preservation areas will
be included in the conservation easement and invasive species populations that threaten the integrity of the
native hardwood community will be controlled.
3.4 Site Preparation and Invasive Species Control
Soil conditions at the site are not compacted and not in need of disking to rip and loosen the soon. The main
focus of site preparation will be to treat and remove invasive species listed in Table 2.6 in buffer preservation
and restoration areas. Invasive species management of existing woody invasive plants within the existing
woodland buffer will take place during the late fall and winter of the first year. Larger shrubs may be treated
as a cut stump treatment while smaller vegetation is sprayed. Any applications will completed by a NC
licensed pesticide applicator.
In addition, within the planting areas of Tract 1 and Tract 2 herbaceous competition management will be
conducted as necessary during the first full growing season. Herbaceous competition management will
consist of mowing as well as targeted herbicide spraying of such species as blackberry, honeysuckle, and
Johnson grass.
3.5 Easement Boundaries and Fencing
Easement boundaries will be identified in the field to ensure clear distinction between the Site and adjacent
properties. Boundaries may be identified by marker, bollard, post, tree- blazing, or other means as allowed by
site conditions and/ or conservation easement. Boundary markers disturbed, damaged, or destroyedwill be
repaired and/ or replaced on an as needed basis. The easement boundary will be checked annually as part of
monitoring activities and reported to NC DWR.
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Neville Farms BPDP Watershed Investments NC
4.0 PROJECT MONITORING AND PERFORMANCE STANDARDS
Pursuant to criteria found in the Temporary Buffer Rule 15A NCAC 02B .0295 and Neville Farms Mitigation
Banking Instrument, the measures of vegetative success for the Parcel will be the survival of at least 260
planted trees per acre at the end of Year 5 based on monitoring of the site. Meeting this success criterion will
allow for the transfer of reassignment of credits from buffer to nutrient offset if needed. Natural recruits will
not count towards annual achievement of performance standards; however they may be taken into account
during review by the NC DWR.
Invasive and noxious species will be monitored and controlled so that none become dominant or alter the
desired community structure of the site.
4.1 Project Monitoring Plan
Riparian buffer vegetation monitoring will be based on the CVS -EEP Protocol for Recording Vegetation
Level 2 Plot Sampling Only Version 4.2. Annual vegetation monitoring will occur each year during the fall
season with the first year occurring at least 5 months from initial planting. Six (6) vegetation monitoring plots
will be a minimum of 0.02 acres in size, and cover approximately two percent of the planted area. Data
collected will include plots: species, height, planting date (or volunteer), and grid location.
4.2 Adaptive Management Plan
In the event that the Site, or a specific component of the Site, fails to achieve the defined performance
standards, WINC will develop necessary adaptive management plans and /or implement appropriate remedial
actions for the Site in coordination with the NC DWR. Remedial actions will be designed to achieve the
performance standards specified previously, and will include identification of the causes of failure, remedial
design approach, work schedule, and monitoring criteria that will take into account physical and climatic
conditions.
4.3 Long Term Management Plan
WINC, acting as the Bank Sponsor, will establish a Conservation Easement, and will monitor the Site for a
minimum of five years, or until NC DWR approval has been given. Prior to the submission of the 4th year
monitoring report, the Site will be transferred to a responsible third party. The third party shall be responsible
for periodic inspection of the Site to ensure that restrictions required in the Conservation Easement or the
deed restriction document(s) are upheld. Endowment funds required to uphold easement and deed
restrictions shall be negotiated prior to site transfer to the responsible party.
The Bank Sponsor will ensure that the Conservation Easement will allow for the implementation of the
monitoring phase, which will be developed during the design phase and conducted by the Bank Sponsor. The
Conservation Easement will allow for yearly monitoring and, if necessary, maintenance of the Site. These
activities will be conducted in accordance with the terms and conditions of the Watershed Investments NC
Jordan Lake Riparian Buffer and Nutrient Offset Mitigation Banking Instrument made and entered into by
Watershed Investments NC, LLC and NC DWR.
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Neville Farms BPDP Watershed Investments NC
5.0. FINANCIAL AssuRANCE
The Sponsor shall provide financial assurances in the form of a Performance Bond sufficient to assure
completion of all mitigation work, required reporting and monitoring, and any remedial work required. The
amount of this assurance is driven in part by the Site meeting requirements outlined by the Division in a
memo released on 4 -2 -14 (See Attachment F). In the memo, the Division outlines criteria that allow for a
site to seek performance bond amounts commensurate with project costs. To qualify, sites must meet the
following criteria:
• Project is for riparian restoration by approved private mitigation bank;
• Project is 10 acres or less in size;
• Project is not adjacent to pasture and does not include fencing; and
• Project does not include stream and /or wetland mitigation.
The Neville Farms Bank Parcel meets the above criteria. As a result, performance bond amounts will be
based, in part, on project specific costs. Tables 5.1 and 5.2 detail the project costs related to construction
and monitoring of the site, respectively. Construction costs for the project are determined to be $40,300 while
monitoring costs are $39,000. Table 5.3 provides a list of the consultants and contractors who are planned
to work on the Bank.
To comply with DWR policy, a performance bond must be acquired to cover 100% of construction cost or
$50,000, whichever is greater. For monitoring, the bond must cover the monitoring costs or, at a minimum,
be in the amount of $25,000. Accordingly, bond amounts of $50,000 and $40,000 will be secured to comply
with the financial assurance requirements of the State for construction and monitoring, respectively.
Alternatively, in lieu of posting the Construction Bond, the Sponsor (WINC) may elect to construct the
project prior to the first credit release.
Financial assurances shall be payable at the direction of the NC DWR to his designee or to a standby trust.
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Neville Farms BPDP Watershed Investments NC
Table 5.1. Planned Construction Costs
Activity Quantity
Cost
Application/
Attorney Fees
Total
per Unit
Handling Fees
Other Changes
Cost
Mitigation Banking Document 1
$2500
$50
$0
$2,550
Bank Parcel Development Package 1
$7500
50
$0
$7,550
Document
As -Built Report 1
$4,000
$4,000
Establishment of Vegetation Plots 6
$300
$1,800
GIS / Mapping 1
$3500
$3,500
Survey 2
$2,000
$4,000
Filing of Conservation 2
$550
$1,100
Easement /Deed
Site Preparation 1
$4,800
$4,800
Herbicide 1
$700
$700
Plants /Planting 2600
$3
$7,800
Fertilizer 0
0
Planting Contractor 1
$2,500
$2,500
Equipment Costs
$0
+I
$0
Total Planned Construction Costs
$40,300
Table 5.2 Monitoring & Maintenance Costs
Cost
(per Consultant Total
Monitoring Tasks
Quantity
Unit) Fees
Cost
Vegetation Plot Data Collection
6 plots
$1,500 $6,000
$15,000
Data Analysis
5 years
$600
$3,000
Report Documentation
5 reports
$1,800
$6,000
Total
$24,000
Maintenance & Adaptive Management Tasks (if needed)
Herbicide / Vegetation Control
4
$2,000
$8,000
Herbivory Control
2
$1,000
$2,000
Replanting
1
$2,500
$2,500
Total
$12,500
Stewardship
Inspections
10
$250
$2,500
Total
$2,500
Monitoring and Maintenance Costs Total
$39,000
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Neville Farms BPDP Watershed Investments NC
Table 5.3. Contractors /Consultants for completion, monitoring and construction of the Site.
Site Prep and Planting Contractor Surveying
Bruton Natural Systems K2 Design Group
PO Box 1197 5688 US Hwy 70 East
Fremont NC 27830 Goldsboro, NC 27534
naturalsystems @embargmail.com k2design@suddentink.net
919- 242 -6555 919- 751 -0075
Conservation Easement Preparation
Harriss & Marion, PLLC
3326 Durham - Chapel Hill Blvd
P.O Box 51009
Durham, NC 27717
joe @hmattorneys.net
919- 493 -8421
Monitoring Services
Axiom Environmental
218 Snow Avenue
Raleigh, NC 27603
919- 215 -1693
glewis @axiomenvironmental.org
6.0 MITIGATION POTENTIAL
Banking Documents and Reports Preparation
Watershed Investments NC
1630 Weatherford Circle
Raleigh NC 27604
mherrmann @watershedinvestmentsnc.net
919- 559 -6264
The Neville Farms Site presents 6.3 acres of permanent conservation easement in Orange County, North
Carolina. The purpose of this project is to generate Jordan Lake riparian buffer restoration, preservation, and
nutrient offset mitigation credits. Communication from the Division confirms that the site qualifies for these
types of crediting (See Attachment G).
Nutrient and buffer credits will not be debited for the same area (not stacked). However, with DWR
approval, WINC may transition unsold credits between credit types to satisfy market demands. The Neville
Farms Bank will service impacts within the Upper New Hope Subwatershed of Jordan Lake. The total
potential buffer and nutrient mitigation credits that the Neville Farms Bank will generate are summarized in
the following sub - sections.
6.1 Buffer Mitigation Potential
As noted in the Neville Farms Mitigation Banking Instrument, buffer credit determination is subject to the
Temporary Buffer Rule 15A NCAC 02B .0295(h). Figure 6 identifies the buffer zone areas. Table 6.1
provides a summary of the buffer credit calculation for each zone and the totals for the Site.
The Site is consistent with applicable state guidance and the provisions of the Neville Farms Mitigation
Banking Instrument (MBI). The legal limits of the Site have not been finalized Upon approval of this BPDP
11
Neville Farms BPDP Watershed Investments NC
and completion of the Site, a conservation easement survey and final recorded plat will be submitted to the
Division for approval with the project's as -built survey.
In accordance with Rule 15A NCAC 02B .0295, the width of the buffer /nutrient credit generation area will
begin at the most landward limit of the top of bank or the rooted herbaceous vegetation and extend landward
to a maximum distance of 200 feet. Preservation areas meet the requirements described in .0925 (m)(2)(D) —
Preservation of Buffers on Subject Streams. Restoration areas meet the requirements of .0295(1) — Riparian
Restoration or Enhancement. Nutrient Offset credits sought are consistent with rules 15A NCAC 02B.0240
and .0273.
Table 6.1. Neville Farms Buffer Credit Summary
Buffer Credit Tract 1 Tract 2 Total
Zone (ac) (ac) Acreage
Buffer 0.680 0.675 1.355
Zone A
Restoration
(0 -50 ft)
Buffer
Nutrient
Preservation
Qualifying Area
Buffer
Zone B
Restoration
(51 -100
(lbs /ac)
(ac)
Buffer
ft)
Nitrogen
2169.26
Preservation
8017.595
Buffer
Zone C
Restoration
(101 -200)
Buffer
Preservation
0.658 0.511 1.169
1.286 0.443 1.728
0.0 0.023 0.023
1.730 0.036
0.0 0.0
Credit Per
Acre
43,560
4,356
43,560
4,356
1.766 21,780
0.0 2,178
Total Buffer Restoration
Total Buffer
Preservation
Total Buffer Credit
Potential
Mitigation
Assets
59,024 ft2
5,092 ft2
75,272 ft2
100 ft2
38,464 ft2
0.0
172,760 ft2
5,192 ft2
177,952ft2
Sought
Mitigation
Credit
0
5092 ft2
0
100 ft2
0
0
0
5192 ft2
5192 ft2
6.2 Nutrient Credit Potential
Based on guidance from the DWR found in Attachment G, Tract 1 and Tract 2 required differing methods
to develop available nutrient credits. Table 6.2 summarizes the nutrient credit available from Tract 1. For
Tract 1, the nutrient credit available is the product of the qualifying restoration area 3.696 acres multiplied by
the approved credit yield for nitrogen and phosphorus found in the MBI (2169.26 N lbs /ac and 143.81 P
lbs /ac).
Table 6.2. Tract 1 Nutrient Credit Potential.
Nutrient
Credit Yield
Qualifying Area
Available Credit
(lbs /ac)
(ac)
(lbs)
Nitrogen
2169.26
3.696
8017.595
Phosphorus
143.81
3.696
531.522
12
Neville Farms BPDP
Watershed Investments NC
While still riparian restoration, Tract 2's predominant residential land use led the Division to require an
alternative credit calculation method than that used for Tract 1. The Division advised that, to calculate the
nutrient credit for Tract 2, the Jordan-Falls Stormwater Accounting Tool should be used. Based on the
application of that Tool, the nutrient offset credit available for Tract 2 is 1091.10 lbs N and 243.00lbs P.
Attachment H provides a summary of the Division's approval of Tract 2's credit calculation along with a
summary of the methods used in the calculation.
To comply with the requirements of 15A NCAC 02B.0273 (2) (d) (i), nutrient credit sales will need to "account
for differences in instream nutrient losses between the location of the reduction need and excess loading
reduction in reaching the affected arm of Jordan Reservoir". To accomplish this, delivery factors are applied
to reductions generated at Neville Farms to calculate the nutrient pounds delivered to Jordan Lake. Loading
reduction sales, therefore, will take into account nutrient deliveries to the lake. Table 6.3 summarizes
nutrient credit generated for each Tract of Neville Farms, the delivery factors to account for instream losses,
and the credits based on pounds delivered to the lake.
Table 6.3. Neville Farms Delivered Nutrient Credit Potential
As indicated in the Site's MBI, project credits may be converted from nutrient to buffer with Division
approval. For purposes of credit conversion from nutrient offset to buffer, the following ratios shall apply:
• Tract 1: 1 square ft. of buffer = 0.0498 lbs of nitrogen and 0.0033 lbs of phosphorus
• Tract 2:1 square ft. of buffer = 0.0209 lbs of nitrogen and 0.0047 lbs of phosphorus
13
Neville Farms BPDP Watershed Investments NC
Tract 1
Tract 2
Generated
Delivery
Delivered Credit
Nutrient
(lbs)
(lbs)
Cre (itb>otal
Factor
Total (lbs)
Nitrogen
8,243.19
1,091.10
9334.29
TBD
TBD
Phosphorus
546.48
243.00
789.48
TBD
TBD
As indicated in the Site's MBI, project credits may be converted from nutrient to buffer with Division
approval. For purposes of credit conversion from nutrient offset to buffer, the following ratios shall apply:
• Tract 1: 1 square ft. of buffer = 0.0498 lbs of nitrogen and 0.0033 lbs of phosphorus
• Tract 2:1 square ft. of buffer = 0.0209 lbs of nitrogen and 0.0047 lbs of phosphorus
13
Neville Farms BPDP Watershed Investments NC
7.0 REFERENCES:
Griffith, G.E., Omernik, J.M., Comstock, J.A., Schafale, M.P., McNab, W.H.,Lenat, D.R., and MacPherson,
T.F., 2002, Eregions of North Carolina, U.S. Environmental Protection Agency, Corvallis, OR.
NC Natural Heritage Program. 2014. NC Natural Heritage Program List of Rare Plant Species of North
Carolina. Onlineathtti): / /t)Ortal.ncdenr.OYg /c /document library /get file?uuid=4eaaf9f2-e30b-
4c19- 809b- fcb12e0daffl &/roupId= 61587. Accessed 4/24/15.
NC State Historic Preservation Office. 2015. HPOWEB GIS Service. Online
athttp: / /gis.ncdcr.gov /bpoweb/ (Accessed 4/7/15)
NC Division of Water Resources. 2014. 2014 NC Water Quality Assessment for 305(b). Online
at: htta: / /t)ortal.ncdenr.orL,/web /wo /ns /mtu /assessment.
NC Division of Water Resources. 2015. Site Viability Response Letter. 4/6/15.
Orange County, NC. 2015. Orange County Flood Determination Response Letter. 4/9/2015.
Paulson, D. 2011. Dragonflies and Damselflies of the East. Princeton University Press. 544pg.
Shafale, M. P., and Weakley, A.S. 1990. Classification of the natural communites of North Carolina, third
approximation. NC Department of Environment and Natural Resources, Natural Heritage Program.
Raleigh, NC.
U.S. Department of Agriculture. 2015. Web Soil Survey Report. Accessed online
3/15/15 http: / /websofsurvev.sc.egov.usda.gov /App /HomePa-ae.htrn
U.S. Fish and Wildlife Service. 2012. Endangered and Threatened Species and Species of Concern by
County for North Carolina. Online athttp://www.fws.gov/raleigh/s ecies/cntvlist/oran�e.htm1
(Accessed 4/8/15).
14
Neville Farms BPDP Watershed Investments NC
LIST OF ATTACHMENTS
Attachment A. Supporting Figures
Figure 1. USGS Topographic Map
Figure 2. Project Site Map
Figure 3. Watershed Setting
Figure 4. Soils Map
Figure 5. Historic Use
Figure 6. Buffer Zones /Proximity Map
Attachment B. Orange County Stream Determination
Attachment C. Orange County Floodplain and Project Review
Attachment D. State Historic Preservation Office Review
Attachment E. Natural Heritage Program Review
Attachment F. Division of Water Resource Financial Assurance Guidance Memo
Attachment G. Division of Water Resource Project Viability Letter
Attachment H. Division of Water Resource Nutrient Credit Calculation for Tract 2
Attachment I. Site Photos
A
Neville Farms BPDP Watershed Investments NC
ATTACHMENT A. Supporting Figures
Figure 1. USGS 1:24,000 Topo Map & Site Location
d#
F.
1 �'� I` A 3� f�� d• i
CI+ zt7 '
I T Project Site
illt
r d
i r -
!} ;
J �+
- -_A
Oak' y
A -1
WATT{R SHIT}
,:drr��esrrrrcrr,�x.�t
^l m r--F
Legend
�te m
Ossipee
Projert Pr4pedie5
JE Ion Haw
River
Streams {from Topo map)
Creed ecr
Elihn er°
Graham
Hillsborough
Cou my Boundary
Alamance
DSATopo Maps
Orange Parcel Boundaries
Chapel
Hill
Durham
'arrbor
Raleigh
L• i berty
rri —ille
Staley
Map Location
Si ler
Cary
City
PlttsbOrrD
pex
Garner
Holly
Springs
San ord
A -1
WATT{R SHIT}
,:drr��esrrrrcrr,�x.�t
^l m r--F
Legend
Neville Farms Site
Projert Pr4pedie5
Streams {from Topo map)
Raeds
111���9
Cou my Boundary
DSATopo Maps
Orange Parcel Boundaries
Figure 2. Project Site Map. (See Attachment I for photos associated with photo points.)
A -2
Figure 3. Neville Farm Watershed Setting /Service Area.
21 r _
-'t
,1 Upper New Hope
" . ~ Subwatershed ham;
ORANGE DURHAhh r
Project Site I ss\;
f..
Location li,nn4;,} i t,,,yei HJci l`
1
- 54
'751 540
Y . 4
fig:.!
CHATHAM
;Ior °rla►r Lake
s , � � At',
_. 15 Ile �
�b
v.e _ __ I - _ U7• "right �iiyt 1�tian�u en rapt ., is 5 iet l_Uked.
J.
Legend
Roads
Upper New Hope
Neviiie Farm Properties
—J County Boundary
Stream slWaterbod ies
A
r
WPLTERSHED
' .Inv�st�raerzts
A -3
STONES II— '� {� P�'(tERSON I —� NORTHAMP ON;
ROCK @NGHAM 7CASWELL i I VAHt�,4 r}
A. .ems .� -. --� _ + GRANVELLE J 1
'FORSYTH -- — /
I`1 DII fiHA IM 1�� •H`LIFAX
IGDILF ORD OR Kf�EL i I FRANKLIN f
i `
C�bPe 1 '1NA`t J NASH
— "- ALAPIIANCE l New yHope
DAVIDSON rCHATHA6
P rene PH t�+ei t vuILSON
f � Jordan Lake _ --
Subwateishe_ dsr JOHNSTON 7
STAN LY MOORE LEE H�E T SWAYNE
MONTGOMERY ) — SAMPSON_� �.
Figure 4. Neville Farm SSURGO Soils Map (Source: USDA 2015)
54
`Carr6ora
1
► "!M
Map Location
0 245 490
Feet
A -4
Neville Creek
Planned Easement Boundary
Mapunit Symbol
ApB
- ApC
Cp
GeB
GeC
GIF
® County Boundary
Figure 5. Historic Land Use — 1993 Aerial Imagery.
A -5
6. Buffer Zones /Site Proximi
r
J
xKP,
r� x
' r
IA'i ; JIM
>! `;Investments w�
A -6
t
f
Legend
Neville Stream
N7Presery ation Areas
Planned Easement
Buffer Zone
A i0 - 50ft}
B (51- 100ft)
C (101 - 200ft)
Project Properties
Roads
0 185
a
N
A
370
Feet
Attachment B. Orange County Stream Determination Documentation
From: Wesley Poole <wpoole @orangecountync.gov>
Sent: Monday, February 9, 2015 4:55 PM
To: 'mherrmann'
Cc: 'katie.merritt @ncdenr.gov'; Howard W. Fleming
Subject: RE: Orange County - Jordan Lake Stream Call for potential Nutrient
Offset /Buffer Credit - Neville Farm
Attachments: Site Assessment Map (PIN 9767295479 ) 2 SMS 02- 09- 15.pdf
Mike / Katie,
I had our Current Planning Division here at Orange County put together the attached "Site Assessment"
showing current environmental conditions on the southernmost property bordering the stream in
question. This is a standard document given to citizen's inquiring about parcels of land. Our system is
organized by PINs instead of physical addresses or latitudes / longitudes, but you should be able to
easily cross reference the supplied data. The stream in question is shown on both the USGS and Soil
Survey, hence portrayal on our GIS System. It also has associated floodway / floodplain with
approximate required Orange County stream buffers as shown.
With regards to the question of it being a jurisdictional stream subject to buffer rules ... Orange County is
delegated by DWR to conduct Surface Water Determinations and our protocol is as follows: a stream is
considered as jurisdictional if it shows up on the Orange County GIS System (a collection of both USGS
and Soil Survey Streams) and can only be removed by staff certified in Surface Water Identification after
a jurisdictional call of removal is made at the required cost for assessment ($200 for 1 -2
Determinations /Site ). Our aerial imagery clearly shows the section of Neville Creek in question as a
"water flowing" feature, so I saw no reason for a site visit at the expense of the client. This imagery can
be viewed at the following link:
htti): / /server2.co.oran.Re .nc.us /Oran.ReNCGIS /default.asi3x
Please advise if further verification is needed.
Thanks,
Wesley Poole
Erosion Control & Stormwater Officer II
Orange County Planning & Inspections Dept.
(919) 245 -2587
From: mherrmann Finai Ito: mherrmann (&watershedinvestmentsnc.netl
Sent: Monday, February 09, 2015 8:05 AM
To: Wesley Poole
Subject: FW: Orange County - Jordan Lake Stream Call for potential Nutrient Offset /Buffer Credit -
Neville Farm
Hi Wesley — Would you be able to provide the documentation that Katie mentions? I think the
assessment you referenced would be good supporting evidence but I'll also need documentation from
you or someone else at the county who can make stream determinations that the stream section on
Neville Creek is subject to the buffer rules. The lat /long for the site that I've been using is 35.891902 N, -
79.128051 W.
1
FLVA ME
From: Merritt, Katie fmailto :katie.merritt@ncdenr.aovI
Sent: Friday, February 6, 2015 3:09 PM
To: mherrmann
Cc: wo00le(d)oranaecountvnc.4ov
Subject: RE: Orange County - Jordan Lake Stream Call for potential Nutrient Offset /Buffer Credit
Neville Farm
Hi Mike,
An email from Orange County will suffice. Ask for the exact location (physical) and long /lat of the
feature they are making the jurisdictional call on.
Thank you,
katie
From: mherrmann fmai Ito: mherrmann @watershedinvestmentsnc.netl
Sent: Friday, February 06, 2015 12:39 PM
To: Merritt, Katie
Cc: wpoole(d)oranaecountvnc.cIov
Subject: FW: Orange County - Jordan Lake Stream Call for potential Nutrient Offset /Buffer Credit -
Neville Farm
Hi Katie —
I contacted Wesley Poole from Orange County Soil and Water about the Neville Farm site I reference in
the email I'm forwarding. Due to the size of the stream he observed on aerial photography and its
presence on the 1:24,000 topographic map, Mr. Poole determined that the stream section in question
would be jurisdictional and subject to the buffer rule and that a field determination was not necessary.
What information would you like me to have to document his determination?
-Mike
p.s. I left you a voicemail this morning regarding this. Please feel free to respond via email or phone.
Mike Herrmann
1630 Weatherford Circle
Raleigh, NC 27604
(p) 919- 559 -6264
mherrmann nwatershedinvestmentsnc .net
wxw.watershedinvestmentrnc. net
This electronic mail communication may contain privileged, confidential, and /or proprietary information which is the property of Watershed
Investments NC, LLC or one of its affiliates. If you are not the intended recipient or an authorized agent of the intended recipient please
delete this communication and notify the sender that you have received it in error.
1i
Site Assessment for PIN:9767 -29 -5479
Site Data
Zoning: RB
Acreage:8.79 acres within Orange County
Overlay Districts: University Lake Protected
Plat /Legal Description: DB 4978 / PG 491 Plat Book 497 / PG 591
Recorded Declarations /Covenants:
Zoning Requirements
Min. Lot Size: 87,120 sq. ft.
Min. lot width: 130'
Maximum height: 25'
Building Setbacks:
-Front (and Corner lots) = 40' from public rights -of -way
-Side Setbacks = 20' from side lot lines
-Rear Yard Setback = 20' from rear lot lines
Note: Lot size, building setbacks and stream buffers may
increase based on Private Road Justification (UDO 7.8.5).
Environmental Features
- Stream buffer and /or Floodplain located on lot. 200' grass stream
buffer. Some wooded areas on northern property may qualify for
100' woods buffer.
-Base Flood Elevation (BFE) is: 422
- Finished Floor Elevation (FFE) is : 424
Impervious Surface Limits: 6% max. (22,973.5 sq ft. max based on
8.79 acres).
Land Disturbance Thresholds
1) Environmental Control Permit required if disturbing more than
10,000 sq.ft.; and
2) Stormwater Management Permit required if disturbing more
than 43,560 sq. ft. for residential structures.
Date Site Assessment Completed:2 /9/2015 by SMS
0 38
� -, ,-„
iniversity L
e 0 Soil: GeB
Q
b3
N
Protecte
_ .
'L A30 ��Zgs�
,Watersh'
N
\
CHAPEL HILL, NC 27516
B -3 0 50 100
D r;`
ti�
Feet
476
Streams (Deleted)
- 2' Contours (NCDOT)
100 YR Floodplain
— USGS Stream
D Parcels
(Effective 02/02/07)
—• Soils Survey Stream
r9Zoning
Floodway
Floodplain Buffer 65ft Watershed
(Effective 02/02/07)
RB
500 Year Floodplains
•`Soils
(Effective 02/02/07)
.
PIN #: 9767295479
p
JOHN THOMAS MCGEE
Map prepared by Orange County Planning & Inspections.
N
JANINE M MCGEE
S�'Q
2201 STANSBURY RD
N
,e
1 inch = 200 feet
CHAPEL HILL, NC 27516
B -3 0 50 100
>
Feet
476
Streams (Deleted)
- 2' Contours (NCDOT)
100 YR Floodplain
— USGS Stream
D Parcels
(Effective 02/02/07)
—• Soils Survey Stream
r9Zoning
Floodway
Floodplain Buffer 65ft Watershed
(Effective 02/02/07)
Stream Buffer 65ft
500 Year Floodplains
•`Soils
(Effective 02/02/07)
Data shown on this map is obtained from Orange County
GIS and is for reference only
Exact locations and boundaries should be verified.
Map prepared by Orange County Planning & Inspections.
497• 02/09/2015 - smschultz
N
,e
1 inch = 200 feet
B -3 0 50 100
Feet
Attachment C. Orange County Floodplain and Project Review.
ORANGE COUNTY PLANNING & INSPECTIONS DEPARTMENT
Craig N. Benedict, AICP, Director
Current Planning
(919) 245 -2575
(919) 644 -3002 (FAX)
www.co.orange.nc.us
131 West Margaret Lane
P O Box 8181
Hillsborough,
North Carolina, 27278
April 9, 2015
Mike Herrmann
1630 Weatherford Circle
Raleigh, NC 27604
RE: ORANGE COUNTY FLOOD PERMIT DETERMINATION — proposed
establishment of conservation area and replanting of vegetation within identified
Special Flood Hazard Area (SFHA) Overlay District for 2 parcels of property
(PINS 9768 -11 -1753 and 9767 -29 -5479)
To Whom It May Concern:
Orange County is in receipt of a Floodplain Development Permit proposing the
reforesting of property within an identified floodplain. Specifically, the project will involve the
planting of native trees along Neville Creek to on the following parcels:
1. An approximately 112 acre parcel of property owned by Nettie Gambill, no
assigned physical address, identified utilizing Orange County Parcel Identification
Number (PIN) 9768 -11 -1753, and
2. An approximately 8.7 acre parcel of property owned by John and Janine McGee
with a physical street address of 2201 Stansbury Road further identified utilizing
Orange County Parcel Identification Number (PIN) 9767 -29 -5479.
The parcels identified herein are both zoned:
• Rural Buffer (RB),
• University Lake Protected Watershed Protection Overlay District, and
• Special Flood Hazard Area Overlay District (SFHA)
The SFHA district, as you are already aware, indicates there is identified floodplain on
the 2 properties, as denoted on Federal Insurance Rate Maps (FIRM) number 3701983100J
panel(s) 9768 and 9767 J respectively with an effective date of February 2, 2007 (hereafter `the
property').
C -1
The project is intended to reestablish protective vegetative cover along the
aforementioned waterway. According to the information supplied to staff the project will not
involve the excavation existing land, or the depositing of fill material, within the floodplain. The
submitted map does not indicate the presence of wetlands within the project area (hereafter `the
project').
As a result of the properties being located within the SFHA district, development projects
are required to demonstrate compliance with established flood regulations as embodied within
the Orange County Unified Development Ordinance (UDO). The County also has regulations
requiring the protection of the natural areas around water features (i.e. stream buffers)
regulations as detailed within Article 6 of the UDO.
Staff has been asked to review the proposal and determine compliance with applicable
County regulations. This project involves the review of several agencies, most notably the NC
Department of Environment and Natural Resources (DENR), in determining the viability of the
project. This letter only focuses on any local (i.e. Orange County) permit standards and does not
presume to identify requirements associated with any other permitting process.
Upon review of the proposal, staff would like to offer the following comments:
1. The request has been submitted in accordance with the provisions of Section 2.6.2
Floodplain Development Permit and Certificate Requirements — Plans and Application
Requirements of the UDO.
2. Per Section 6.13.6 Stream Buffers — Uses Allowable Within Stream Buffers of the UDO
`restoration of stream buffers' is allowed as a `matter of right' within identified stream
buffers.
3. In reviewing the submitted plan the project does not call for the depositing of fill material
within the identified floodplain or the floodway.
Grading activities will be limited to those portions of the project requiring the actual
disturbance of land area for the purpose of re- establishing native vegetation.
4. In reviewing the submitted site plan there does not appear to be any alteration of existing
grade or the `mass grading' of property to accommodate the project.
5. Per Section 6.6.1 (14) of the UDO disturbance projects within identified floodplains
shall: `minimize flood damage consistent with these and other applicable County
regulations'.
Based on the submitted documentation it would appear the project will comply with
applicable development guidelines associated with the SFHA Overlay District and is
consistent with FEMA regulations governing land disturbance activities within identified
floodplain areas.
Based on the submitted documentation, and in accordance with Section 2.6.2 of the
UDO, staff can issue approval for the project, from both a zoning and flood permitting
standpoint. The project will not require additional floodplain analysis as the reestablishment of
C -2
vegetation is not deemed to create /impact existing floodways. The project, in fact, will help to
bring the property back into compliance with applicable stream buffer regulations and further
stabilize the banks of Neville Creek.
Please note land disturbing activities shall be permitted to commence once all other
required permitting processes have been adhered to, including any applicable Erosion Control
permits issued by Orange County and any required State/Federal permits, with copies of said
authorizations being provided to the County for our records.
The Orange County Planning department looks forward to continue working with you on
this project. Please contact staff at (919) 245 -2575 for additional assistance.
CC: Craig Benedict, Planning Director
Howard Fleming Jr, Erosion Control
Wesley Poole, Erosion Control
James Bryan, Staff Attorney
File
Sincerely, t,
Michael D FTaive� CFO, CZO
Current Planning Supervisor
Orange County
C -3
Attachment D. State Historic Preservation Office Review
�.�. SfAT@
m. iryy (A91
V
North Carolina Department of Cultural Resources
State Historic Preservation Office
Ramona M. Bartos, Administrator
Governor Pat McCrory
Secretary Susan Kluttz
March 10, 2015
Mike Herrmann
Watershed Investments
1630 Weatherford Circle
Raleigh, NC 27604
Office of Archives and History
Deputy Secretary Kevin Cherry
Re: Neville Farm Nutrient and Buffer Mitigation Bank Site, Orange County, ER 15 -0389
Dear Mr. Herrmann:
Thank you for your letter of February 21, 2015, concerning the above project.
We have conducted a review of the project and are aware of no historic resources which would be affected by
the project. Therefore, we have no comment on the project as proposed.
The above comments are made pursuant to Section 106 of the National Historic Preservation Act and the
Advisory Council on Historic Preservation's Regulations for Compliance with Section 106 codified at 36 CFR
Part 800.
Thank you for your cooperation and consideration. If you have questions concerning the above comment,
contact Renee Gledhill- Earley, environmental review coordinator, at 919- 807 -6579 or
environmental .reviewna,ncdcr.gov. In all future communication concerning this project, please cite the above
referenced tracking number.
Sincerely,
�5eRamona M. Bartos
Location: 109 East Jones Street, Raleigh NC 27601 Mailing Address: 4617 Mail Service Center, Raleigh NC 27699 -4617 Telephone/ Fax: (919) 807 - 6570/807 -6599
D -1
Attachment E. Natural Heritage Program Project Review
NCDENR
North Carolina Department of Environment and Natural Resources
Office of Land and Water Stewardship
Pat McCrory Bryan Gossage Donald R. van der Vaart
Governor Director Secretary
February 27, 2015
Mr. Mike Herrmann
Watershed Investments NC
1630 Weatherford Circle
Raleigh, North Carolina 27604
mherrmann @watershedinvestmentsnc .net
RE: Neville Farms Nutrient and Buffer Mitigation Bank Site, Orange County, North Carolina
Dear Mr. Herrmann:
Thank you for the opportunity to provide information from the North Carolina Natural Heritage Program
( NCNHP) database for the proposed project referenced above. The NCNHP database shows a record for
a rare species — Pursh's Wild- petunia — that may occur within or nearby the proposed project area, and
also a property owned by Orange County and considered to be Orange County open space immediately
east and adjacent to the project area along Neville's Creek.
Within one mile of the project area, the NCNHP database shows element occurrence records for the
following rare species:
ELEMENT
OCCURRENCE STATE FEDERAL
SCIENTIFIC NAME COMMON NAME STATUS ACCURACY STATUS STATUS
Ruellia purshiana Pursh's Wild- petunia Historical Low SC -V - --
Somatochlora georgiana Coppery Emerald Historical Very Low SR - --
*For status and accuracy definitions, please see the Rare Species Status Definitions and Element Occurrences documents at
htti)s: / /ncnhde.natureserve.orR /content /help.
The occurrence record for Pursh's Wild- petunia is from a dry road bank in the vicinity of Neville's Creek
near University Lake, and is mapped in the NCNHP database as potentially occurring within your project
area. Although the record for Pursh's Wild- petunia is considered to be historical, the last observation
was made in 1940 by Al Radford and according to the NCNHP database the area has not been surveyed
since the original observation. The occurrence record for Coppery Emerald has very low accuracy due to
the lack of site - specific locational information associated with the record, but this species has been
documented in Orange County.
In addition, the NCNHP database shows several conservation /managed areas within one mile of the
project area, including the property owned by Orange County adjacent to the eastern portion of the
project area as noted above, as well as other Orange County open space properties upstream and
downstream from the project, a conservation easement managed by the Triangle Land Conservancy ca.
0.45 miles east of the project, and properties under conservation easement managed by Earthmark
North Carolina, LLC, located ca. 0.9 miles northwest of the project area.
1601 Mail Service Center, Raleigh, North Carolina 27699 -1601
Phone: 919 - 707 -8600 \ Internet: www.ncdenr.gov
An Equal Opportunity \ Affirmative Action Employer— Made in part by recycled paper
E -1
Neville Farms Nutrient and Buffer Mitigation Bank Site, Orange County, North Carolina
February 27, 2015
Page 2
The locations of natural areas and conservation /managed areas near the project area may be viewed by
accessing the Natural Heritage Data Explorer online map viewer, or by downloading and using
Geographic Information System (GIS) data; both options are available from the NCNHP Data Services
webpage (www.ncnhi3.org).
Please note that occurrences of rare species documented within one mile of the proposed project area
increase the likelihood that these species may be present within the project area if suitable habitat
exists. The use of Natural Heritage Program data should not be substituted for actual field surveys if
needed, particularly if the project area contains suitable habitat for rare species. If rare species are
found during field surveys, the NCNHP would appreciate receiving this information so that we may
update our database.
Thank you for your inquiry, and please feel free to contact me at Allison.Weaklev @ncdenr.gov or 919-
707 -8629 if you have questions or need additional information.
Sincerely,
J
Allison Schwarz Weakley, Conservation Planner
NC Natural Heritage Program
E -2
Attachment F. Division of Water Resources Project Viability Letter
A�;,,A.
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
April 6, 2015
Mike Hermann
Watershed Investments NC, LLC
1630 Weatherford Circle
Raleigh, NC 27604
(via electronic mail)
Re: Site Viability for Buffer Mitigation & Nutrient Offset — Neville Creek
Near 1501 Old Greensboro Rd, Chapel Hill, NC
Orange County
Dear Mike,
Donald R. van der Vaart
Secretary
On February 13, 2015, Katie Merritt, with the Division of Water Resources (DWR), received a request from
Watershed Investments NC, LLC (WI) for a site visit near the above - referenced site to determine the
potential for nutrient offset and Jordan riparian buffer mitigation. On March 24, 2015, Ms. Merritt
performed a site assessment of two properties near the subject site, which are more accurately described
in the attached aerial map. If approved, mitigating these properties could provide riparian buffer credits
and /or nutrient offset credits within the Upper New Hope Watershed of the Cape Fear River Basin.
Ms. Merritt's evaluation of the two properties' for buffer and nutrient offset mitigation is shown below:
Gambill Property
• Stream onsite is Neville Creek and was determined to be at least Intermittent by the Town of
Chapel Hill (email from Wesley Poole with Orange County on February 9, 2015).
• The narrow forest fringe along Neville Creek was described to be mature with a closed canopy the
entire length of Zone 1 of the proposed mitigation area. Therefore, Zone 1 is viable for buffer
preservation only and suitable for buffer mitigation credit only.
• The existing land use condition within Zone 2 of the Jordan buffer (21 -50') was determined to be
active hay crop cultivation. Therefore, Zone 2 is viable for buffer restoration and suitable for either
buffer mitigation credit or nutrient offset credit.
• The existing land use of the riparian area located outside of the Jordan buffer (51 -200') was
determined to be active hay crop cultivation. Therefore, this area is viable for riparian restoration
and suitable for either buffer mitigation credit or nutrient offset credit.
McGee Pronertv
Stream onsite is Neville Creek and was determined to be at least Intermittent by the Town of
Chapel Hill (email from Wesley Poole with Orange County on February 9, 2015).
Division of Water Resources - 401 and Buffer Permitting Unit
1617 Mail Service Center, Raleigh, North Carolina 27699 -1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: 919 - 807 -6300 \ FAX: 919 - 807 -6494
Internet: www.ncwaterquality.org
An Equal Opportunity \ Affirmative Action Employer — Made in part by recycled paper
F -1
The existing land use condition within Zone 1 and Zone 2 of the Jordan buffer (0 -50') was
determined to be a mixture of mature hardwood trees with a disturbed understory dominated by
invasives. The area within the Jordan buffer was determined to be viable for buffer restoration and
suitable for buffer mitigation credit only. Site preparation will be needed to manually remove the
invasives. Additionally, all of the erosional gullies and holes must be filled and stabilized to
promote diffuse flow of stormwater runoff within the buffer. All trees must be surveyed out of the
total square footage of the proposed mitigation area.
The existing land use condition outside of the Jordan buffer (51 -200') was determined to be a
maintained lawn and not in agriculture. This area is viable for riparian restoration and suitable for
only buffer mitigation.
A map showing the project site is provided and signed by Ms. Merritt on April 6, 2015. For any areas
depicted as not being viable for nutrient offset credit above, WI could propose a different measure, along
with supporting calculations and sufficient detail to support estimates of load reduction, for review by the
DWR to determine viability for nutrient offset according to 15A NCAC 02B.0240.
Please contact Katie Merritt at (919)- 807 -6371 if you have any questions regarding this correspondence.
KAH /km
Attachments: Site Aerial Map
cc:File Copy (Katie Merritt)
Sincerely,
Karen Higgins, Supervisor
401 and Buffer Permitting Unit
F -2
Figure 2. Neville Farm Drainage Features and Potential Buffer
Neville Farms Prospectus — Upper New Hope
Watershed Investments NC
Legend
Neville Creek
Stream Proximity
Stream Proximity
Project Properties
Roads
County Boundary
L�
Data may not be 100% accurate and is intended
for planning purposes only Actual mitigation
area will be determined through development
of the Bank Parcel Development Plan.
A � -r
0 175 350
Feet
64 ' Carrboro
54
LJ
Map Location
Attachment G. Division of Water Resources Finacial Assurance Guidance Memorandum
AA l
NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
April 2, 2014
MEMORANDUM
TO: Approved Nutrient Offset & Riparian Buffer Mitigation Banks in NC
FROM: Katie Merritt M
Nutrient Offset & Buffer Banking Coordinator - Division of Water Resources
THROUGH: Karen Higgins
401 and Buffer Permitting Unit - Division of Water Resources
Supervisor
John E. Skvarla, III
Secretary
SUBJECT: Notification of potential changes to performance bond requirements for construction
and monitoring costs of nutrient offset and riparian buffer mitigation banks in NC
On February 19, 2014, Assistant Secretary of the North Carolina (NC) Department of Environment & Natural
Resources, Mitch Gillespie, responded to a concerned citizen's letter requesting staff within the Division of Water
Resources (DWR) re- evaluate the minimum requirements of performance bonds for nutrient offset and riparian
buffer mitigation banks in NC. Currently, the requirements are a minimum of $150,000 and $100,000 for
construction and monitoring costs respectively. Staff within the 401 & Buffer Permitting Unit of the DWR,
conducted a thorough review of information received from mitigation providers and consultants and determined
that performance bonds less than the current minimum bond requirements may be accepted on a case by case
basis. Restrictions to the changes in bonding amounts are as follows:
• Applicable for riparian restoration projects conducted by approved private mitigation banks only;
• Applicable for projects 10 acres or less in size as shown on a survey;
• Applicable for projects that do not include fencing as part of the approval for mitigation;
• Not applicable for projects that include stream and /or wetland mitigation; and
• No bond shall be less than $50,000 and $25,000 for construction and monitoring costs respectively.
In accordance with the statement provided in Mr. Gillespie's response letter, the following applies:
• "Operational procedures that are not in direct compliance with existing Umbrella Mitigation Banking
Instruments (UMBI) will need to be approved prior to implementation ".
Therefore, mitigation bank sponsors who would like to modify the performance bond requirements on
buffer /nutrient offset riparian restoration projects may submit a modification of their existing UMBI for review
and approval by the Director of the Division of Water Resources (DWR), prior to implementation.
Please contact Katie Merritt at 919- 807 -6371 or katie.merritt(a0cdenr.t ; ov for UMBI modification requests or
questions regarding this correspondence.
Division of Water Resources - 401 & Buffer Permitting Unit
1650 Mail Service Center, Raleigh, North Carolina 27699 -1650
Location: 512 N, Salisbury St. Raleigh, North Carolina 27604
Phone: 919 - 807 -63001 FAX: 919 - 807 -6494
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer— Made in part by recycled paper
G -1
Attachment H. NC DWR Approval Notice and Support Materials for Tract 2's Nutrient Credit Calculation.
From: Davis, Amin <amin.davis @ncdenr.gov>
Sent: Thursday, July 23, 2015 1:22 PM
To: mike — herrmann @hotmail.com; mherrmann
Cc: Gannon, Rich; Merritt, Katie
Subject: RE: Neville Farms Tract 2 Nutrient Credit Calculation
MIKE — I have reviewed your information and it appears to adequately document the site and associated
offset credit calculations. Rich informed me that you and he spoke yesterday and the processing of your
site information through DWR will take a couple of months. I'm sure we'll be in touch as things move
forward.
Amin
From: Davis, Amin
Sent: Tuesday, July 21, 2015 2:44 PM
To: 'mike — herrmann @hotmail.com'; 'mherrmann'
Cc: Gannon, Rich
Subject: RE: Neville Farms Tract 2 Nutrient Credit Calculation
MIKE — Thank you for sending this updated information. I will be in touch with you later this week
regarding confirmation and next steps.
"211
Amin Davis
Watershed Restoration Specialist
NCDENR Division of Water Resources
Nonpoint Source Planning Branch
1617 Mail Service Center, Raleigh NC 27699 -1617
919 - 807 -6439
amin.davis @ncdenr.gov
http://Portal.ncdenr.org/web/wq/ps/nps
From: mike herrmann @hotmail.com rmailto:mike herrmann@hotmail.coml
Sent: Friday, July 17, 2015 4:20 PM
To: Davis, Amin
Subject: Fwd: Neville Farms Tract 2 Nutrient Credit Calculation
Hi Amin,
Attached are the nutrient calculation materials for Tract 2. The edits you
suggested have been made to Attachment A. The remaining materials remain the
same. If you are satisfied that these materials adequately document the site and
offset credit calculation, I'll need a communication from your Branch stating that.
Thank you,
H -1
WATERSHED
{ Investments
July 16, 2015
Amin Davis
Nonpoint Source Planning Branch
1617 Mail Service Center
Raleigh, NC 27699 -1617
Subject: Nutrient Offset Credit Claculation Materials for Neville Farms — Tract 2
Mr. Davis
Attached for your review is the nutrient offset credit calculation and supporting materials for the
Tract 2 (McGee Site) of the Neville Farms Riparian Buffer and Nutrient Offset Mitigation Bank.
The following attachments are included in this submission:
A. Summary of Project and Nutrient Offset Calculation
B. Copy of Jordan Falls Stormwater Tool Data Sheets
C. Map of Tract 2 Portion the Neville Farms Nutrient Offset and Buffer Mitigation Bank
D. 401 & Buffer Unit Determination Letter
Would you please review these materials and respond as to whether you agree with the attached
offset credit calculation? The awarding of that credit will also be determined by whether the
project is developed in accordance with its Bank Parcel Development Package (BPDP) and if it
meets the regulatory requirements established in the project's mitigation banking instrument.
These are currently being developed in consult with the Division of Water Resource's 401 &
Buffer Permitting Unit.
Also, pursuant to 15A NCAC 02B .0273(2)(d)(i), the project will need to "account for differences
in instream nutrient losses between the location of the reduction need and excess loading
reduction in reaching the affected arm of Jordan Reservoir ". In past communications, you've
indicated that the Division is currently preparing to release delivery factors that will be applicable
to this project. When those become available, will you please forward them so that they can be
included in both the project's mitigation banking instrument and BPDP?
Thank you for your help in the review for offset crediting of this site. I understand that it
presented a departure from the traditional crediting sought for sites and, consequently, required
additional review and consideration. I appreciate the timely manner with witch you have
conducted your review.
Sincerely,
Mike Herrmann
16317 Weatherford Circle, Raleigh NC 27604 1 Tel :919-533-9195 1 www.watershed nvescmcntsnc.net
H -2
ATTACHMENT A. Tract 2 of Neville Farms Nutrient Offset Calculation Summary
Project Overview
Tract 2 is part of a larger restoration project identified as Neville Farms in the Bank Parcel Development
Plan that is currently being developed. Located adjacent to Neville Creek, a perennial stream in Orange
County, Tract 2 is on an 8.8 acre property owned by John McGee. The watershed draining through the
project site encompasses 31.6 acres. The proposed Tract 2 conservation easement is approximately 1.7
acres with 1.20 acres anticipated for reforestation. The remaining 0.5 acres, a narrow, mature buffer
ranging between 10 and 20 feet exists in portions of the easement area, will be considered as buffer
preservation with no proposed nutrient reduction benefit. Attachment C provides a map of the Site
including the land draining to it.
For areas of the conservation easement lacking a forested buffer or with forests less than 50 feet,
residential lawn will be replaced with native trees to create a buffer with widths varying between 50 and
150 feet. In accordance with current DWR policy, success criteria on the project will be based on a
minimum planted stem density survival of 260 stems /acre after 5 years.
Currently, the majority of Tract 2 consists of residential lawn. While it is eligible for buffer credit, staff
from the 401 and Buffer Unit directed me to work with the Planning Section to develop the nutrient
offset crediting because the site falls outside of the typical practice for generating nutrient offset credit
(i.e., riparian reforestation of agricultural land). Attachment D contains a copy of the letter summarizing
their determination.
Nutrient Reduction Calculation Summary
The calculated nutrient credit available for the site is 1091.10 N Ibs and 243.00 P lbs. This is based on an
annual nutrient offset crediting for the site of 36.37 N pound (Ibs) /year and 8.10 Ibs /year multiplied by
30 years. The method used to quantify nutrient offset credits has been developed through coordination
and communication with the NC DWR Planning Unit staff. The agreed on approach involves the use of
site - specific factors and the Jordan -Falls Stormwater Accounting Tool (JFSAT) Version 3.0. Supporting
printouts from the tool are included in Attachment B. A summary of the nutrient offset calculation is
included below.
Table A -1 provides a summary of the estimated reduction from the JFSAT. The JFSAT accounts for both
land conversion for nutrient removal from upland sources. The upland area is 29.93 acres. This area
includes The Orchard, a development under construction that contains a mix of residential and forest
land use with 2 ac residential lots being the predominant parcel type. Parameters used to run the tool
along with its output are contained in Attachment B.
Table A -1. Land Conversion and Upland Source Reduction.
Nutrient Pre - project load Post - project load Nutrient Nutrient Credit
(Ibs /yr) (Ibs /yr) reduction (Ibs /yr) (Ibs /30 yrs)
Nitrogen
Phosphorus
80.52 44.15
16.08 7.98
A -1 H -3
36.37 1091.10
8.10 243.00
Attachment B. Jordan Falls Stormwater Accounting Tool Data Sheets.
Load'Ancount 0 1 '(0 (0
06
VairMan 300
Date:
Project Name:
Development Area (ft):
Physiographic Region:■,�+����� ■��� -��
Project Latitude Coordinates:
Project Longitude Coordinates:
Precipitation Location:
Project Designer:
Contact Phone Number /Email:
Project Description:
Nutrient Offset Calculation Surr
July 9, 2015
Neville Farms - Tract 2
1,377,644
Piedmont
N
W
Raleigh
Watershed Investments NC
mary for Neville Farms -Tract 2
B -1 H -4
Import An
Existing Project
Watershed Characteristics
Introduction
L Project BMP Overall y Individual BMP
Information Characteristics Summary Summary
WATERSHED LAND USES
ANNE!= I Clear All Entries
TN TP
Pre- Post- L Print Watershed Characteristics
EMC EMC Development Development
(mg/L) (mg/l.)
SuDoortlrl£ Calculations
COMMERCIAL
I SIMPLE METHOD
Parking lot
1.44 0.16
MMunofj1Woefficientr3ty
Roof
1.08 0.15
Rv= 0.05 +(0.009 *I)
Open /Landscaped
2.24 0.44
where I = percent impervious ( %)
J INDUSTRIAL
Pre - Development Watershed:
Parking lot
1.44 0.39
= 7%
Roof
1.08 0.15
Rv= 0.11
Open /Landscaped
2.24 0.44
Post- Development Watershed:
TRANSPORTATION
1= 11%
High Density (interstate, main)
3.67 0.43
Rv= 0.15
Low Density (secondary, feeder)
Rural
Sidewalk
PERVIOUS
Managed pervious
Unmanaged (pasture)
Forest
RESIDENTIAL - COMPOSITE LAND USES
Y.. -ac lots
Y -ac lots
Y.. -ac lots
1 -ac lots
2 -ac lots
Multi- family
Townhomes
Custom Lot Size
RESIDENTIAL - INDIVIDUAL LAND USES
Roadway
Driveway �. 1.0
Parking lot
Roof
Sidewalk /Patio
Lawn
Managed pervious
Forest
JURISDICTIONAL LANDS
Natural wetland
Riparian buffer - Zone 1 (Forested)
Riparian buffer -Zone 2
Open water
LAND TAKEN UP BY BMPs
1.4 0.52
1.14 0.47
1.4 1.16
2.65 0.735
3.61 1.56
1.41 0.25
2.02 0.43
2.07 0.43
2.11 0.43
2.15 0.4
2.22 0.44
1.92 0.41
1.94 0.42
1.4 0.52
1.44 0.39
1.44 0.39
1.08 0.15
1.4 1.16
2.65 0.735 52,272
2.65 0.735
1.47 0.25
1.47 0.25
1.47 0.25 21,790 .21,780
2.65 0.735
1.08 0.15 52,272
LAND USE AREA CHECK
Total Development Area Entered (ft): 1,377,644
Total Pre - Development Calculated Area (ft'): 1,377,644
Total Post - Development Calculated Area (ft): 1,377,644
I5Yorm woterMRunofJXeneroted,W
V= Rv * A * (P/12)
where A= area of catchment (ftz)
P = average annual rainfall depth
Pre - Development Watershed:
A= 31.63 ac
P= 45.41 in.
V = 580321 ft'
Post - Development Watershed:
A= 31.63 ac
P= 45.41 in.
V = 758346 ft'
1t0 verageMnnualEPoll utant[loadingL3eavingMXatc
L= ((P *Pj *Rv)a(12)) *(C *A*
where Pj = fraction of rainfall events that
C= event mean concentration of
Pre - Development Watershed:
Pi = 1
CTN = 2.22 mg /L
CTP= 0.44 mg /L
LTN = 80.52 Ib /yr
LTP= 16.08 Ib /yr
Post - Development Watershed:
Pi = 1
CTN = 1.93 mg /L
CTP= 0.37 mg /L
LTN = 91.55 Ib /yr
LTP= 17.38 Ib /yr
B -2 H -5
BMP Characteristics
Clear All Entries
Print BMP Characteristics
Type of BMP:
Select predominant hydrologic soil group
(HSG) for the location of the BMP.
Description of Custom BMPs
Under- or Over -sized Percentage:
Hydrologic Values (Value must be entered by
user for Water Harvesting or Custom BMPs)
Hydrologic Values
Nutrient Effluent EMC Values (Value must be
entered by user for custom BMPs)
Catchment 1:
Drainage Area Land Use
COMMERCIAL
Parking lot
Roof
Open /Landscaped
INDUSTRIAL
Parking lot
Roof
Open/Landscaped
TRANSPORTATION
Hi
0 Density (interstate, main)
Low Density (secondary, feeder)
Rural
Sidewalk
Introduction Project Watershed l Overall Individual BMP
Information Characteristics I f Summary � Summary
CATCHMENT 1
BMP #1 BMP #2 BMP #3
Other Custom BMP I
B
LSFS HYDRO: Buffer EMCs
Overflow %: I %Treated Overflow %: %Treated Overflow %: %Treated
5% SS%
TN EMC (mg /L): TP EMC (mg /L): TN EMC (mg /L): TP EMC (mg /L): TN EMC (mg /Q: TP EMC (mg /L):
1.47 0.25
Does BMP accept the outflow from another Catchment? If so, indicate which one(s). (Land use areas entered
below are in addition to the watershed areas treated by contributing catchment(s).)
Area treated Area treated
Area Treated by BMP #2 that is not treated by by BMP #3 that is not treated by
by BMP BMP #1 BMPs #1 or #2
lftZl
(ft) (ft2)
B -3 H -6
Allowable Total Land)
Total Land Use
Use Area to be
Area Treated By
All BMPs
Treated Based on
(ftz)
Post -Dev. Areas
(ftzl
0
0
0
0
0
0
0
0
0
0
0
0
0
0
_ 0
0
0
0
0
0
MISC. PERVIOUS
Managed pervious
Unmanaged (pasture)
Forest
RESIDENTIAL
2 -ac lots
1 -ac lots
Y.-ac lots
% -ac lots
Y.-ac lots
Townhomes
Multi- family
Custom Lot Size
Roadway
Driveway
Parking lot
Roof
Sidewalk
Lawn
Managed pervious
Forest
JURISDICTIONAL LAND USES
Natural wetland
Riparian buffer - Zone 1
Riparian buffer - Zone 2
LAND TAKEN UP BY BMP
TOTAL AREA TREATED BY BMP (ft):
1,303,592
52,272
1,355,864
0
TOTAL AREA TREATED BY SERIES (ft): 1,355,864
B -4
0
0 I 0
0 0
0 0
1,303,592
1,303,592
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0
0 21,780
0 0
52,272 52,272
Development Name:
Total Development Area (ft):
Designer:
Date:
Neville Farms - Tract 2
1,377,644
Watershed Investments NC
July 9, 2015
Development Summary
Pre - Development
Post - Development
Conditions
10.6%
758,346
1.93
91.55
2.89
0.37
17.38
0.55
Post - Development
w/ BMPs
10.6%
462,590
1.53
44.15
1_ / -C
0.28
7.98
0.2_>
Overall BMP /Catchment Summary.
Conditions
Percent Impervious (%)
6.8%
Annual Runoff Volume (c.f.)
580,321
Total Nitrogen EMC (mg /L)
2.22
Total Nitrogen Loading (lb /yr)
80.52
Total Nitrogen Loading (lb /ac /yr)
711 >
Total Phosphorus EMC (mg /L)
0.44
Total Phosphorus Loading (lb /yr)
16.08
Total Phos. Loading (lb /ac /yr)
0.51
Post - Development
Conditions
10.6%
758,346
1.93
91.55
2.89
0.37
17.38
0.55
Post - Development
w/ BMPs
10.6%
462,590
1.53
44.15
1_ / -C
0.28
7.98
0.2_>
Overall BMP /Catchment Summary.
B -5
TP
Reduction
M
71.20%
71.20%
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Area
Volume
TN
Treated
Reduction
Outflow TN
Outflow TP
Outflow TN
Outflow TP
Reduction
(ft')
M
(mg /L)
(mg /L)
(Ibs /ac /yr)
(Ibs /ac /yr)
M
Catchment 1
1,355,864
40.0%
1.53
0.28
1.41
0.25
58.69%
BMP 1
1,355,864
40.0%
1.53
0.28
1.41
0.25
58.69%
BMP2
0
NA
NA
NA
NA
NA
NA
BMP3
0
NA
NA
NA
NA
NA
NA
(Catchment 2
0
NA
NA
NA
NA
NA
NA
BMP1
0
NA
NA
NA
NA
NA
NA
I BMP2
0
NA
NA
NA
NA
NA
NA
I BMP3
0
NA
NA
NA
NA
NA
NA
ICatchment 3
0
NA
NA
NA
NA
NA
NA
I BMP1
0
NA
NA
NA
NA
NA
NA
I BMP2
0
NA
NA
NA I
NA
NA
NA
I BMP3
0
NA
NA
NA
NA
NA
NA
ICatchment 4
0
NA
NA
NA
NA
NA
NA
I BMP1
0
NA
NA
NA I
NA
NA
NA
I BMP2
0
NA
NA
NA
NA
NA
NA
I BMP3
0
NA
NA
NA
NA
NA
NA
ICatchment 5
0
NA
NA
NA
NA
NA
NA
I BMP1
0
NA
NA
NA
NA
NA
NA
I BMP2
0
NA
NA
NA
NA
NA
NA
BMP3
0
NA
NA
NA
NA
NA
NA
Catchment 6
0
NA
NA
NA I
NA
NA
NA
B -5
TP
Reduction
M
71.20%
71.20%
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
ATTACHMENT C. Tract 2 Restoration Area and Watershed Map
C -1
Attachment D. 401 & Buffer Unit Determination Letter.
J&V#FA
NCDENR
North CaroOna Department of Environment and Natural Resources
Pat McCrory
Governor
April 6, 2015
Mike Hermann
Watershed Investments NC, LLC:
1630 Weatherford Circle
Raleigh, NC 27604
(via electronic mail)
Re: Site Viability for Buffer Mitigation & Nutrient Offset — Neville Creek
Near 1501 Old Greensboro Rd, Chapel Hill, NC
Orange County
Dear Mike,
Donald R. van der Vaart
Secretary
On February 13, 2015, Katie Merritt, with the Division of 'Water Resources (DWR), received a request from
Watershed Investments NC, LLC (WI) for a site visit near the above- referenced site to determine the
potential for nutrient offset and Jordan riparian buffer mitigation. On March 24, 2015, Ms. Merritt
performed a site assessment of two properties near the subject site, which are more accurately described
in the attached aerial map. If approved, mitigating these properties could provide riparian buffer credits
and/or nutrient offset credits within the Upper New (tope Watershed of the Cape Fear River Basin.
Ms. Merritt's evaluation of the two properties' for buffer and nutrient offset mitigation is shown below:
Gambill Property
• Stream onsite is Neville Creek and was determined to be at least Intermittent by the Town of
Chapel Hill (email from Wesley Poole with Orange County on February 9, 2015).
• The narrow forest fringe along Neville Creek was described to be mature with a closed canopy the
entire length of Zone 1 of the proposed mitigation area. Therefore, Zone 1 is viable for buffer
preservation only and suitable for buffer mitigation credit only.
• The existing land use condition within Zone 2 of the Jordan buffer (21 -50') was determined to be
active hay crop cultivation. Therefore, Zone 2 is viable for buffer restoration and suitable for either
buffer mitigation credit or nutrient offset credit.
• The existing land use of the riparian area located outside of the Jordan buffer (51 -200') was
determined to be active hay crop cultivation. Therefore, this area is viable for riparian restoration
and suitable for either buffer mitigation credit or nutrient offset credit.
McGee Property
Stream: onsite is Neville Creek and was determined to be at least Intermittent by the Town of
Chapel Hill (email from Wesley 'Poole with Orange County on February 9, 2015).
Division of Water Resources - 401 and Buffer Permitting Unit
1617 Mail Service Center, Raleigh, North Carolina 27699 -1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: 919 - 807 -6300 1 FAX 919 -807 -6494
Internet: www.ncwaterquality.org
An Equal Opportunity l Affirmative Acton Employer - Made in part by recycled paper
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The existing land use condition within Zone 1 and Zone 2 of the Jordan buffer (0 -50') was
determined to be a mixture of mature hardwood trees with a disturbed understory dominated by
invasives, The area within the Jordan buffer was determined to be viable for buffer restoration and
suitable for buffer mitigation credit only. Site preparation will be needed to manually remove the
invasives. Additionally, all of the erosional gullies and holes must be filled and stabilized to
promote diffuse flow of stormwater runoff within the buffer. All trees must be surveyed out of the
total square footage of the proposed mitigation area.
The existing land use condition outside of the Jordan buffer (51- 2470') was determined to be a
maintained lawn and not in agriculture. This area is viable for riparian restoration and suitable for
only buffer mitigation.
A map showing the project site is provided and signed by Ms. Merritt on April 6, 2015. For any areas
depicted as not being viable for nutrient offset credit above, WI could propose a different measure, along
with supporting calculations and sufficient detail to support estimates of load reduction, for review by the
DWR to determine viability for nutrient offset according to 15A NCAC 02B ,0240.
Please contact Katie Merritt at (919) -807 -6371 if you have any questions regarding this correspondence.
KA HAm
Attachments: Site Aerial Map
cc:File Copy (Katie Merritt)
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Sincerely,
✓✓✓
Karen Higgins, Supervisor
401 and Buffer Permitting Unit
Attachment I. Neville Farms Site Photographs
Photo A. Tract 1. Upstream looking downstream at Neville Creek Floodplain
Photo B. Tract 1 Downstream end looking upstream at floodplain area.
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Photo D. Tract 2 Looking downstream toward Neville Creek floodplain.