HomeMy WebLinkAboutSW4220502_Soils/Geotechnical Report_20220514USDA United States
Department of
Agriculture
N RCS
Natural
Resources
Conservation
Service
A product of the National
Cooperative Soil Survey,
a joint effort of the United
States Department of
Agriculture and other
Federal agencies, State
agencies including the
Agricultural Experiment
Stations, and local
participants
Custom Soil Resource
Report for
Alamance County,
North Carolina
Snow Camp Solar, NC
January 5, 2022
Preface
Soil surveys contain information that affects land use planning in survey areas.
They highlight soil limitations that affect various land uses and provide information
about the properties of the soils in the survey areas. Soil surveys are designed for
many different users, including farmers, ranchers, foresters, agronomists, urban
planners, community officials, engineers, developers, builders, and home buyers.
Also, conservationists, teachers, students, and specialists in recreation, waste
disposal, and pollution control can use the surveys to help them understand,
protect, or enhance the environment.
Various land use regulations of Federal, State, and local governments may impose
special restrictions on land use or land treatment. Soil surveys identify soil
properties that are used in making various land use or land treatment decisions.
The information is intended to help the land users identify and reduce the effects of
soil limitations on various land uses. The landowner or user is responsible for
identifying and complying with existing laws and regulations.
Although soil survey information can be used for general farm, local, and wider area
planning, onsite investigation is needed to supplement this information in some
cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/
portal/nres/main/soils/health/) and certain conservation and engineering
applications. For more detailed information, contact your local USDA Service Center
(https:Hoffices.sc.egov.usda.gov/locator/app?agency=nres) or your NRCS State Soil
Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/?
cid=nres142p2_053951).
Great differences in soil properties can occur within short distances. Some soils are
seasonally wet or subject to flooding. Some are too unstable to be used as a
foundation for buildings or roads. Clayey or wet soils are poorly suited to use as
septic tank absorption fields. A high water table makes a soil poorly suited to
basements or underground installations.
The National Cooperative Soil Survey is a joint effort of the United States
Department of Agriculture and other Federal agencies, State agencies including the
Agricultural Experiment Stations, and local agencies. The Natural Resources
Conservation Service (NRCS) has leadership for the Federal part of the National
Cooperative Soil Survey.
Information about soils is updated periodically. Updated information is available
through the NRCS Web Soil Survey, the site for official soil survey information.
The U.S. Department of Agriculture (USDA) prohibits discrimination in all its
programs and activities on the basis of race, color, national origin, age, disability,
and where applicable, sex, marital status, familial status, parental status, religion,
sexual orientation, genetic information, political beliefs, reprisal, or because all or a
part of an individual's income is derived from any public assistance program. (Not
all prohibited bases apply to all programs.) Persons with disabilities who require
alternative means for communication of program information (Braille, large print,
audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice
and TDD). To file a complaint of discrimination, write to USDA, Director, Office of
Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or
call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity
provider and employer.
Contents
Preface........................................................................................................... .
How Soil Surveys Are Made..........................................................................
Soil Ma
Soil Map (Snow Camp Solar, NC)................................................................
Legend..........................................................................................................
Map Unit Legend (Snow Camp Solar, NC) ...................................................
Map Unit Descriptions (Snow Camp Solar, NC) ...........................................
Alamance County, North Carolina.............................................................
ChA—Chewacla loam, 0 to 2 percent slopes, frequently flooded.........
CnB2—Cullen clay loam, 2 to 6 percent slopes, moderately eroded....
CnC2—Cullen clay loam, 6 to 10 percent slopes, moderately eroded..
CnD2—Cullen clay loam, 10 to 15 percent slopes, moderately eroded
HnB—Herndon silt loam, 2 to 6 percent slopes ....................................
HnC—Herndon silt loam, 6 to 10 percent slopes ..................................
MaB—Mandale-Secrest complex, 2 to 6 percent slopes ......................
W—Water............................................................................................. .
Soil Information for All Uses.........................................................................
Suitabilities and Limitations for Use..............................................................
Building Site Development........................................................................
Corrosion of Steel (Snow Camp Solar, NC) ..........................................
Soil Properties and Qualities........................................................................
Soil Qualities and Features.......................................................................
Depth to a Selected Soil Restrictive Layer: Lithic bedrock (Snow
CampSolar, NC).............................................................................
Depth to a Selected Soil Restrictive Layer: Paralithic bedrock (Snow
CampSolar, NC).............................................................................
WaterFeatures.........................................................................................
Depth to Water Table (Snow Camp Solar, NC) .....................................
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How Soil Surveys Are Made
Soil surveys are made to provide information about the soils and miscellaneous
areas in a specific area. They include a description of the soils and miscellaneous
areas and their location on the landscape and tables that show soil properties and
limitations affecting various uses. Soil scientists observed the steepness, length,
and shape of the slopes; the general pattern of drainage; the kinds of crops and
native plants; and the kinds of bedrock. They observed and described many soil
profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The
profile extends from the surface down into the unconsolidated material in which the
soil formed or from the surface down to bedrock. The unconsolidated material is
devoid of roots and other living organisms and has not been changed by other
biological activity.
Currently, soils are mapped according to the boundaries of major land resource
areas (MLRAs). MLRAs are geographically associated land resource units that
share common characteristics related to physiography, geology, climate, water
resources, soils, biological resources, and land uses (USDA, 2006). Soil survey
areas typically consist of parts of one or more MLRA.
The soils and miscellaneous areas in a survey area occur in an orderly pattern that
is related to the geology, landforms, relief, climate, and natural vegetation of the
area. Each kind of soil and miscellaneous area is associated with a particular kind
of landform or with a segment of the landform. By observing the soils and
miscellaneous areas in the survey area and relating their position to specific
segments of the landform, a soil scientist develops a concept, or model, of how they
were formed. Thus, during mapping, this model enables the soil scientist to predict
with a considerable degree of accuracy the kind of soil or miscellaneous area at a
specific location on the landscape.
Commonly, individual soils on the landscape merge into one another as their
characteristics gradually change. To construct an accurate soil map, however, soil
scientists must determine the boundaries between the soils. They can observe only
a limited number of soil profiles. Nevertheless, these observations, supplemented
by an understanding of the soil -vegetation -landscape relationship, are sufficient to
verify predictions of the kinds of soil in an area and to determine the boundaries.
Soil scientists recorded the characteristics of the soil profiles that they studied. They
noted soil color, texture, size and shape of soil aggregates, kind and amount of rock
fragments, distribution of plant roots, reaction, and other features that enable them
to identify soils. After describing the soils in the survey area and determining their
properties, the soil scientists assigned the soils to taxonomic classes (units).
Taxonomic classes are concepts. Each taxonomic class has a set of soil
characteristics with precisely defined limits. The classes are used as a basis for
comparison to classify soils systematically. Soil taxonomy, the system of taxonomic
classification used in the United States, is based mainly on the kind and character
of soil properties and the arrangement of horizons within the profile. After the soil
Custom Soil Resource Report
scientists classified and named the soils in the survey area, they compared the
individual soils with similar soils in the same taxonomic class in other areas so that
they could confirm data and assemble additional data based on experience and
research.
The objective of soil mapping is not to delineate pure map unit components; the
objective is to separate the landscape into landforms or landform segments that
have similar use and management requirements. Each map unit is defined by a
unique combination of soil components and/or miscellaneous areas in predictable
proportions. Some components may be highly contrasting to the other components
of the map unit. The presence of minor components in a map unit in no way
diminishes the usefulness or accuracy of the data. The delineation of such
landforms and landform segments on the map provides sufficient information for the
development of resource plans. If intensive use of small areas is planned, onsite
investigation is needed to define and locate the soils and miscellaneous areas.
Soil scientists make many field observations in the process of producing a soil map.
The frequency of observation is dependent upon several factors, including scale of
mapping, intensity of mapping, design of map units, complexity of the landscape,
and experience of the soil scientist. Observations are made to test and refine the
soil -landscape model and predictions and to verify the classification of the soils at
specific locations. Once the soil -landscape model is refined, a significantly smaller
number of measurements of individual soil properties are made and recorded.
These measurements may include field measurements, such as those for color,
depth to bedrock, and texture, and laboratory measurements, such as those for
content of sand, silt, clay, salt, and other components. Properties of each soil
typically vary from one point to another across the landscape.
Observations for map unit components are aggregated to develop ranges of
characteristics for the components. The aggregated values are presented. Direct
measurements do not exist for every property presented for every map unit
component. Values for some properties are estimated from combinations of other
properties.
While a soil survey is in progress, samples of some of the soils in the area generally
are collected for laboratory analyses and for engineering tests. Soil scientists
interpret the data from these analyses and tests as well as the field -observed
characteristics and the soil properties to determine the expected behavior of the
soils under different uses. Interpretations for all of the soils are field tested through
observation of the soils in different uses and under different levels of management.
Some interpretations are modified to fit local conditions, and some new
interpretations are developed to meet local needs. Data are assembled from other
sources, such as research information, production records, and field experience of
specialists. For example, data on crop yields under defined levels of management
are assembled from farm records and from field or plot experiments on the same
kinds of soil.
Predictions about soil behavior are based not only on soil properties but also on
such variables as climate and biological activity. Soil conditions are predictable over
long periods of time, but they are not predictable from year to year. For example,
soil scientists can predict with a fairly high degree of accuracy that a given soil will
have a high water table within certain depths in most years, but they cannot predict
that a high water table will always be at a specific level in the soil on a specific date.
After soil scientists located and identified the significant natural bodies of soil in the
survey area, they drew the boundaries of these bodies on aerial photographs and
Custom Soil Resource Report
identified each as a specific map unit. Aerial photographs show trees, buildings,
fields, roads, and rivers, all of which help in locating boundaries accurately.
Soil Map
The soil map section includes the soil map for the defined area of interest, a list of
soil map units on the map and extent of each map unit, and cartographic symbols
displayed on the map. Also presented are various metadata about data used to
produce the map, and a description of each soil map unit.
In
In
641700
35° 52' 0" N
g
0
g
r
35° 51' 31" N
641700 641800 641900 642000 642100 642200 642300
b
Map Scale: 1:6,220 if printed on A landscape (11" x 8.5") sheet.
Meters
N 0 50 100 200 300
Feet
0 300 600 1200 1800
Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 17N WGS84
9
641800 641900 642000 642100
Custom Soil Resource Report
Soil Map (Snow Camp Solar, NC)
642200 642300 6424W 642500
642600 642700 642800 642900
643000
35° 52' 0" N
r
r
g
0
r
r
35° 51' 31" N
642400 642500 642600 642700 642800 642900 64300D
v
MAP LEGEND
Area of Interest (AOI)
0
Area of Interest (AOI)
Soils
0
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special
Point Features
Iwo
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
�i
Gravelly Spot
Landfill
A.
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
oa
Sodic Spot
Custom Soil Resource Report
MAP INFORMATION
Spoil Area
The soil surveys that comprise your AOI were mapped at
1:12,000.
Stony Spot
Very Stony Spot
Warning: Soil Map may not be valid at this scale.
Wet Spot
Enlargement of maps beyond the scale of mapping can cause
Other
misunderstanding of the detail of mapping and accuracy of soil
�-
Special Line Features
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
Water Features
scale.
Streams and Canals
Transportation
Please rely on the bar scale on each map sheet for map
E F
Rails
measurements.
. 0
Interstate Highways
Source of Map: Natural Resources Conservation Service
US Routes
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Major Roads
Local Roads
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
Background
distance and area. A projection that preserves area, such as the
Aerial Photography
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Alamance County, North Carolina
Survey Area Data: Version 20, Sep 3, 2021
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Jul 28, 2019—Jul 30,
2019
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
10
Custom Soil Resource Report
Map Unit Legend (Snow Camp Solar, NC)
Map Unit Symbol
Map Unit Name
Acres in AOI
Percent of AOI
ChA
Chewacla loam, 0 to 2 percent
1.6
2.1 %
slopes, frequently flooded
CnB2
Cullen clay loam, 2 to 6 percent
20.8
28.1 %
slopes, moderately eroded
CnC2
Cullen clay loam, 6 to 10
1.6
2.1 %
percent slopes, moderately
eroded
CnD2
Cullen clay loam, 10 to 15
0.0
0.0%
percent slopes, moderately
eroded
HnB
Herndon silt loam, 2 to 6
9.7
13.0%
percent slopes
HnC
Herndon silt loam, 6 to 10
0.1
0.2%
percent slopes
MaB
Mandale-Secrest complex, 2 to
39.0
52.6%
6 percent slopes
W
Water
1.4
1.9%
Totals for Area of Interest
74.1
100.0%
Map Unit Descriptions (Snow Camp Solar,
NC)
The map units delineated on the detailed soil maps in a soil survey represent the
soils or miscellaneous areas in the survey area. The map unit descriptions, along
with the maps, can be used to determine the composition and properties of a unit.
A map unit delineation on a soil map represents an area dominated by one or more
major kinds of soil or miscellaneous areas. A map unit is identified and named
according to the taxonomic classification of the dominant soils. Within a taxonomic
class there are precisely defined limits for the properties of the soils. On the
landscape, however, the soils are natural phenomena, and they have the
characteristic variability of all natural phenomena. Thus, the range of some
observed properties may extend beyond the limits defined for a taxonomic class.
Areas of soils of a single taxonomic class rarely, if ever, can be mapped without
including areas of other taxonomic classes. Consequently, every map unit is made
up of the soils or miscellaneous areas for which it is named and some minor
components that belong to taxonomic classes other than those of the major soils.
Most minor soils have properties similar to those of the dominant soil or soils in the
map unit, and thus they do not affect use and management. These are called
noncontrasting, or similar, components. They may or may not be mentioned in a
particular map unit description. Other minor components, however, have properties
and behavioral characteristics divergent enough to affect use or to require different
management. These are called contrasting, or dissimilar, components. They
11
Custom Soil Resource Report
generally are in small areas and could not be mapped separately because of the
scale used. Some small areas of strongly contrasting soils or miscellaneous areas
are identified by a special symbol on the maps. If included in the database for a
given area, the contrasting minor components are identified in the map unit
descriptions along with some characteristics of each. A few areas of minor
components may not have been observed, and consequently they are not
mentioned in the descriptions, especially where the pattern was so complex that it
was impractical to make enough observations to identify all the soils and
miscellaneous areas on the landscape.
The presence of minor components in a map unit in no way diminishes the
usefulness or accuracy of the data. The objective of mapping is not to delineate
pure taxonomic classes but rather to separate the landscape into Iandforms or
Iandform segments that have similar use and management requirements. The
delineation of such segments on the map provides sufficient information for the
development of resource plans. If intensive use of small areas is planned, however,
onsite investigation is needed to define and locate the soils and miscellaneous
areas.
An identifying symbol precedes the map unit name in the map unit descriptions.
Each description includes general facts about the unit and gives important soil
properties and qualities.
Soils that have profiles that are almost alike make up a soil series. Except for
differences in texture of the surface layer, all the soils of a series have major
horizons that are similar in composition, thickness, and arrangement.
Soils of one series can differ in texture of the surface layer, slope, stoniness,
salinity, degree of erosion, and other characteristics that affect their use. On the
basis of such differences, a soil series is divided into soil phases. Most of the areas
shown on the detailed soil maps are phases of soil series. The name of a soil phase
commonly indicates a feature that affects use or management. For example, Alpha
silt loam, 0 to 2 percent slopes, is a phase of the Alpha series.
Some map units are made up of two or more major soils or miscellaneous areas.
These map units are complexes, associations, or undifferentiated groups.
A complex consists of two or more soils or miscellaneous areas in such an intricate
pattern or in such small areas that they cannot be shown separately on the maps.
The pattern and proportion of the soils or miscellaneous areas are somewhat similar
in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example.
An association is made up of two or more geographically associated soils or
miscellaneous areas that are shown as one unit on the maps. Because of present
or anticipated uses of the map units in the survey area, it was not considered
practical or necessary to map the soils or miscellaneous areas separately. The
pattern and relative proportion of the soils or miscellaneous areas are somewhat
similar. Alpha -Beta association, 0 to 2 percent slopes, is an example.
An undifferentiated group is made up of two or more soils or miscellaneous areas
that could be mapped individually but are mapped as one unit because similar
interpretations can be made for use and management. The pattern and proportion
of the soils or miscellaneous areas in a mapped area are not uniform. An area can
be made up of only one of the major soils or miscellaneous areas, or it can be made
up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example.
Some surveys include miscellaneous areas. Such areas have little or no soil
material and support little or no vegetation. Rock outcrop is an example.
12
Custom Soil Resource Report
Alamance County, North Carolina
ChA—Chewacla loam, 0 to 2 percent slopes, frequently flooded
Map Unit Setting
National map unit symbol: 2xn4h
Elevation: 330 to 660 feet
Mean annual precipitation: 39 to 47 inches
Mean annual air temperature: 55 to 63 degrees F
Frost -free period: 200 to 250 days
Farmland classification: Prime farmland if drained and either protected from flooding
or not frequently flooded during the growing season
Map Unit Composition
Chewacla, frequently flooded, and similar soils: 90 percent
Minor components: 10 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Chewacla, Frequently Flooded
Setting
Landform: Flood plains
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Tread, talf
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Loamy alluvium derived from igneous and metamorphic rock
Typical profile
Ap - 0 to 6 inches: loam
Bw - 6 to 52 inches: sandy clay loam
Cg - 52 to 80 inches: stratified sandy loam
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Somewhat poorly drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.20 to 2.00 in/hr)
Depth to water table: About 6 to 24 inches
Frequency of flooding: NoneFrequent
Frequency of ponding: None
Available water supply, 0 to 60 inches: Moderate (about 7.6 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4w
Hydrologic Soil Group: B/D
Hydric soil rating: No
Minor Components
Wehadkee, frequently flooded
Percent of map unit. 5 percent
Landform: Flood plains
Landform position (two-dimensional): Toeslope
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Custom Soil Resource Report
Landform position (three-dimensional): Tread, talf
Down -slope shape: Linear
Across -slope shape: Linear
Hydric soil rating: Yes
Riverview, frequently flooded
Percent of map unit. 5 percent
Landform: Flood plains
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Tread, talf
Down -slope shape: Linear
Across -slope shape: Linear
Hydric soil rating: No
CnB2—Cullen clay loam, 2 to 6 percent slopes, moderately eroded
Map Unit Setting
National map unit symbol: 2xn4j
Elevation: 330 to 980 feet
Mean annual precipitation: 39 to 47 inches
Mean annual air temperature: 55 to 63 degrees F
Frost -free period: 200 to 250 days
Farmland classification: All areas are prime farmland
Map Unit Composition
Cullen, moderately eroded, and similar soils: 95 percent
Minor components: 5 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Cullen, Moderately Eroded
Setting
Landform: Imerfluves
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down -slope shape: Convex
Across -slope shape: Convex
Parent material: Mixed residuum weathered from igneous and metamorphic rock
Typical profile
Ap - 0 to 10 inches: clay loam
Bt - 10 to 50 inches: clay
BC - 50 to 69 inches: silty clay
CB - 69 to 80 inches: silty clay loam
Properties and qualities
Slope: 2 to 6 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.57 to 1.98 in/hr)
14
Custom Soil Resource Report
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: Moderate (about 7.2 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: B
Hydric soil rating: No
Minor Components
Enon, moderately eroded
Percent of map unit. 5 percent
Landform: Imerfluves
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down -slope shape: Convex
Across -slope shape: Convex
Hydric soil rating: No
CnC2—Cullen clay loam, 6 to 10 percent slopes, moderately eroded
Map Unit Setting
National map unit symbol: 2xn4k
Elevation: 330 to 980 feet
Mean annual precipitation: 39 to 47 inches
Mean annual air temperature: 55 to 63 degrees F
Frost -free period: 200 to 250 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Cullen, moderately eroded, and similar soils: 95 percent
Minor components: 5 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Cullen, Moderately Eroded
Setting
Landform: Imerfluves
Landform position (two-dimensional): Shoulder, backslope
Landform position (three-dimensional): Side slope
Down -slope shape: Concave
Across -slope shape: Linear
Parent material: Mixed residuum weathered from igneous and metamorphic rock
Typical profile
Ap - 0 to 10 inches: clay loam
Bt - 10 to 50 inches: clay
BC - 50 to 69 inches: silty clay
15
Custom Soil Resource Report
CB - 69 to 80 inches: silty clay loam
Properties and qualities
Slope: 6 to 10 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: Moderate (about 7.2 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: B
Hydric soil rating: No
Minor Components
Enon, moderately eroded
Percent of map unit. 5 percent
Landform: I me rfluves
Landform position (two-dimensional): Shoulder, backslope
Landform position (three-dimensional): Side slope
Down -slope shape: Concave
Across -slope shape: Linear
Hydric soil rating: No
CnD2—Cullen clay loam, 10 to 15 percent slopes, moderately eroded
Map Unit Setting
National map unit symbol: 2xn4l
Elevation: 330 to 980 feet
Mean annual precipitation: 39 to 47 inches
Mean annual air temperature: 55 to 63 degrees F
Frost -free period: 200 to 250 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Cullen, moderately eroded, and similar soils: 95 percent
Minor components: 5 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Cullen, Moderately Eroded
Setting
Landform: Imerfluves
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
it.
Custom Soil Resource Report
Down -slope shape: Concave
Across -slope shape: Linear
Parent material: Mixed residuum weathered from igneous and metamorphic rock
Typical profile
Ap - 0 to 10 inches: clay loam
Bt - 10 to 50 inches: clay
BC - 50 to 69 inches: silty clay
CB - 69 to 80 inches: silty clay loam
Properties and qualities
Slope: 10 to 15 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: Moderate (about 7.2 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4e
Hydrologic Soil Group: B
Hydric soil rating: No
Minor Components
Enon, moderately eroded
Percent of map unit. 5 percent
Landform: I me rfluves
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down -slope shape: Concave
Across -slope shape: Linear
Hydric soil rating: No
HnB—Herndon silt loam, 2 to 6 percent slopes
Map Unit Setting
National map unit symbol. 2xn5c
Elevation: 70 to 980 feet
Mean annual precipitation: 39 to 47 inches
Mean annual air temperature: 55 to 63 degrees F
Frost -free period: 200 to 250 days
Farmland classification: All areas are prime farmland
Map Unit Composition
Herndon and similar soils: 90 percent
Minor components: 10 percent
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Custom Soil Resource Report
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Herndon
Setting
Landform: Imerfluves
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down -slope shape: Convex
Across -slope shape: Convex
Parent material: Residuum weathered from phyllite
Typical profile
Ap - 0 to 8 inches: silt loam
Bt1 - 8 to 12 inches: silty clay loam
Bt2 - 12 to 44 inches: clay
C - 44 to 80 inches: silt loam
Properties and qualities
Slope: 2 to 6 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Available water supply, 0 to 60 inches: Moderate (about 8.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2e
Hydrologic Soil Group: B
Hydric soil rating: No
Minor Components
Lignum
Percent of map unit: 5 percent
Landform: Imerfluves
Landform position (two-dimensional): Summit, shoulder
Landform position (three-dimensional): Interfluve
Down -slope shape: Convex
Across -slope shape: Convex
Hydric soil rating: No
Nanford
Percent of map unit: 5 percent
Landform: Imerfluves
Landform position (two-dimensional): Summit, shoulder
Landform position (three-dimensional): Interfluve
Down -slope shape: Convex
Across -slope shape: Convex
Hydric soil rating: No
18
Custom Soil Resource Report
HnC—Herndon silt loam, 6 to 10 percent slopes
Map Unit Setting
National map unit symbol. 2xn5d
Elevation: 330 to 980 feet
Mean annual precipitation: 39 to 47 inches
Mean annual air temperature: 55 to 63 degrees F
Frost -free period: 200 to 250 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Herndon and similar soils: 90 percent
Minor components: 10 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Herndon
Setting
Landform: I me rfluves
Landform position (two-dimensional): Shoulder, backslope
Landform position (three-dimensional): Side slope
Down -slope shape: Concave
Across -slope shape: Linear
Parent material: Residuum weathered from phyllite
Typical profile
Ap - 0 to 8 inches: silt loam
Bt1 - 8 to 12 inches: silty clay loam
Bt2 - 12 to 44 inches: clay
C - 44 to 80 inches: silt loam
Properties and qualities
Slope: 6 to 10 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Maximum salinity. Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Available water supply, 0 to 60 inches: Moderate (about 8.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: B
Hydric soil rating: No
19
Custom Soil Resource Report
Minor Components
Lignum
Percent of map unit: 5 percent
Landform: Imerfluves
Landform position (two-dimensional): Shoulder, backslope
Landform position (three-dimensional): Side slope
Down -slope shape: Convex
Across -slope shape: Linear
Hydric soil rating: No
Nanford
Percent of map unit: 5 percent
Landform: Imerfluves
Landform position (two-dimensional): Shoulder, backslope
Landform position (three-dimensional): Side slope
Down -slope shape: Concave
Across -slope shape: Linear
Hydric soil rating: No
MaB—Mandale-Secrest complex, 2 to 6 percent slopes
Map Unit Setting
National map unit symbol: 2xn5y
Elevation: 330 to 980 feet
Mean annual precipitation: 39 to 47 inches
Mean annual air temperature: 55 to 63 degrees F
Frost -free period: 200 to 250 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Mandale and similar soils: 50 percent
Secrest and similar soils: 42 percent
Minor components: 8 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Mandale
Setting
Landform: Flats on interfluves, drainageways on interfluves, depressions on
interfluves, sloughs on interfluves
Landform position (two-dimensional): Summit, toeslope
Landform position (three-dimensional): Interfluve, dip, rise, talf
Down -slope shape: Linear, convex
Across -slope shape: Linear, convex, concave
Parent material: Residuum weathered from argillite
Typical profile
A - 0 to 7 inches: silt loam
Bt - 7 to 48 inches: silty clay loam
20
Custom Soil Resource Report
BCtg - 48 to 55 inches: clay loam
C - 55 to 64 inches: fine sandy loam
Cr - 64 to 78 inches: bedrock
R - 78 to 80 inches: bedrock
Properties and qualities
Slope: 2 to 6 percent
Depth to restrictive feature: 60 to 80 inches to lithic bedrock; 60 to 80 inches to
paralithic bedrock
Drainage class: Somewhat poorly drained
Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately
low (0.00 to 0.14 in/hr)
Depth to water table: About 12 to 24 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: High (about 10.2 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3w
Hydrologic Soil Group: C/D
Hydric soil rating: No
Description of Secrest
Setting
Landform: Flats on interfluves, drainageways on interfluves, depressions on
interfluves, sloughs on interfluves
Landform position (two-dimensional): Summit, toeslope
Landform position (three-dimensional): Interfluve, dip, rise, talf
Down -slope shape: Linear, convex
Across -slope shape: Linear, concave, convex
Parent material: Residuum weathered from argillite
Typical profile
A - 0 to 6 inches: silt loam
Bt - 6 to 41 inches: silty clay loam
BC - 41 to 49 inches: loam
Cr - 49 to 61 inches: bedrock
R - 61 to 80 inches: bedrock
Properties and qualities
Slope: 2 to 6 percent
Depth to restrictive feature: 40 to 60 inches to paralithic bedrock; 60 to 80 inches
to Iithic bedrock
Drainage class: Moderately well drained
Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately
high (0.00 to 0.60 in/hr)
Depth to water table: About 18 to 30 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: Moderate (about 8.8 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2e
Hydrologic Soil Group: C
21
Custom Soil Resource Report
Hydric soil rating: No
Minor Components
Biscoe
Percent of map unit: 8 percent
Landform: Flats on interfluves, sloughs on interfluves, drainageways on
interfluves, depressions on interfluves
Landform position (two-dimensional): Shoulder, backslope, toeslope, summit
Landform position (three-dimensional): Side slope, dip, rise, talf
Down -slope shape: Linear, convex
Across -slope shape: Linear, concave, convex
Hydric soil rating: No
W—Water
Map Unit Composition
Water.- 100 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Water
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 8w
Hydric soil rating: No
22
Soil Information for All Uses
Suitabilities and Limitations for Use
The Suitabilities and Limitations for Use section includes various soil interpretations
displayed as thematic maps with a summary table for the soil map units in the
selected area of interest. A single value or rating for each map unit is generated by
aggregating the interpretive ratings of individual map unit components. This
aggregation process is defined for each interpretation.
Building Site Development
Building site development interpretations are designed to be used as tools for
evaluating soil suitability and identifying soil limitations for various construction
purposes. As part of the interpretation process, the rating applies to each soil in its
described condition and does not consider present land use. Example
interpretations can include corrosion of concrete and steel, shallow excavations,
dwellings with and without basements, small commercial buildings, local roads and
streets, and lawns and landscaping.
Corrosion of Steel (Snow Camp Solar, NC)
"Risk of corrosion" pertains to potential soil -induced electrochemical or chemical
action that corrodes or weakens uncoated steel. The rate of corrosion of uncoated
steel is related to such factors as soil moisture, particle -size distribution, acidity, and
electrical conductivity of the soil. Special site examination and design may be
needed if the combination of factors results in a severe hazard of corrosion. The
steel in installations that intersect soil boundaries or soil layers is more susceptible
to corrosion than the steel in installations that are entirely within one kind of soil or
within one soil layer.
The risk of corrosion is expressed as "low," "moderate," or "high."
23
In
In
641700
35° 52' 0" N
g
0
g
r
35° 51' 31" N
641700 641800 641900 642000 642100 642200 642300
b
Map Scale: 1:6,220 if printed on A landscape (11" x 8.5") sheet.
Meters
N 0 50 100 200 300
Feet
0 300 600 1200 1800
Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 17N WGS84
24
Custom Soil Resource Report
Map —Corrosion of Steel (Snow Camp Solar, NC)
641800 641900 642000 642100 642200 642300 642400 642500 642600 642700 642800 642900
643000
35° 52' 0" N
r
r
g
0
r
r
35° 51' 31" N
642400 642500 642600 642700 642800 642900 64300D
v
Custom Soil Resource Report
MAP LEGEND
MAP INFORMATION
Area of Interest (A01) Background
The soil surveys that comprise your AOI were mapped at
0
Area of Interest (AOI) Aerial Photography
1 :12,000.
Soils
Soil Rating
Polygons
Warning: Soil Map may not be valid at this scale.
.
High
Enlargement of maps beyond the scale of mapping can cause
0
Moderate
misunderstanding of the detail of mapping and accuracy of soil
0
Low
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
0
Not rated or not available
scale.
Soil Rating
Lines
High
Please rely on the bar scale on each map sheet for map
measurements.
N 0
Moderate
0
Low
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
. 0
Not rated or not available
Coordinate System: Web Mercator (EPSG:3857)
Soil Rating
Points
High
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
❑
Moderate
distance and area. A projection that preserves area, such as the
Low
Albers equal-area conic projection, should be used if more
0
accurate calculations of distance or area are required.
0
Not rated or not available
Water Features
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Streams and Canals
Transportation
Soil Survey Area: Alamance County, North Carolina
Rails
Survey Area Data: Version 20, Sep 3, 2021
Interstate Highways
Soil map units are labeled (as space allows) for map scales
US Routes
1:50,000 or larger.
Major Roads
Date(s) aerial images were photographed: Jul 28, 2019—Jul 30,
Local Roads
2019
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
25
Custom Soil Resource Report
Table —Corrosion of Steel (Snow Camp Solar, NC)
Map unit symbol
Map unit name
Rating
Acres in AOI
Percent of AOI
ChA
Chewacla loam, 0 to 2
High
1.6
2.1 %
percent slopes,
frequently flooded
CnB2
Cullen clay loam, 2 to 6
High
20.8
28.1 %
percent slopes,
moderately eroded
CnC2
Cullen clay loam, 6 to 10
High
1.6
2.1 %
percent slopes,
moderately eroded
CnD2
Cullen clay loam, 10 to
High
0.0
0.0%
15 percent slopes,
moderately eroded
HnB
Herndon silt loam, 2 to 6
Moderate
9.7
13.0%
percent slopes
HnC
Herndon silt loam, 6 to
Moderate
0.1
0.2%
10 percent slopes
MaB
Mandale-Secrest
High
39.0
52.6%
complex, 2 to 6
percent slopes
W
Water
1.4
1.9%
Totals for Area of Interest
74.1
100.0%
Rating Options —Corrosion of Steel (Snow Camp Solar, NC)
Aggregation Method: Dominant Condition
Component Percent Cutoff.- None Specified
Tie -break Rule: Higher
W
Custom Soil Resource Report
Soil Properties and Qualities
The Soil Properties and Qualities section includes various soil properties and
qualities displayed as thematic maps with a summary table for the soil map units in
the selected area of interest. A single value or rating for each map unit is generated
by aggregating the interpretive ratings of individual map unit components. This
aggregation process is defined for each property or quality.
Soil Qualities and Features
Soil qualities are behavior and performance attributes that are not directly
measured, but are inferred from observations of dynamic conditions and from soil
properties. Example soil qualities include natural drainage, and frost action. Soil
features are attributes that are not directly part of the soil. Example soil features
include slope and depth to restrictive layer. These features can greatly impact the
use and management of the soil.
Depth to a Selected Soil Restrictive Layer: Lithic
bedrock (Snow Camp Solar, NC)
A "restrictive layer" is a nearly continuous layer that has one or more physical,
chemical, or thermal properties that significantly impede the movement of water and
air through the soil or that restrict roots or otherwise provide an unfavorable root
environment. Examples are bedrock, cemented layers, dense layers, and frozen
layers.
This theme presents the depth to the user selected type of restrictive layer as
described in for each map unit. If no restrictive layer is described in a map unit, it is
represented by the "greater than 200" depth class.
This attribute is actually recorded as three separate values in the database. A low
value and a high value indicate the range of this attribute for the soil component. A
"representative" value indicates the expected value of this attribute for the
component. For this soil property, only the representative value is used.
27
In
In
641700
35° 52' 0" N
g
0
g
r
35° 51' 31" N
641700 641800 641900 642000 642100 642200 642300
b
Map Scale: 1:6,220 if printed on A landscape (11" x 8.5") sheet.
Meters
N 0 50 100 200 300
Feet
0 300 600 1200 1800
Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 17N WGS84
28
Custom Soil Resource Report
Map —Depth to a Selected Soil Restrictive Layer: Lithic bedrock (Snow Camp Solar, NC)
641800 641900 642000 642100 642200 642300 642400 642500 642600 642700 642800 642900
643000
35° 52' 0" N
r
r
g
0
r
r
35° 51' 31" N
642400 642500 642600 642700 642800 642900 64300D
v
MAP LEGEND
Area of Interest (AOI)
0
Area of Interest (AOI)
Soils
Soil Rating
Polygons
0
0-25
0
25-50
0
50 - 100
0
100 - 150
0
150 - 200
0
> 200
0
Not rated or not available
Soil Rating
Lines
~
0-25
r 0
25-50
Custom Soil Resource Report
❑ Not rated or not available
Water Features
Streams and Canals
Transportation
i--1-+ Rails
0 Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
MAP INFORMATION
The soil surveys that comprise your AOI were mapped at
1:12,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
.
50 - 100
projection, which preserves direction and shape but distorts
.
100 -150
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
.
150 - 200
accurate calculations of distance or area are required.
> 200
This product is generated from the USDA-NRCS certified data as
A 0
Not rated or not available
of the version date(s) listed below.
Soil Rating
Points
0 - 25
Soil Survey Area: Alamance County, North Carolina
Survey Area Data: Version 20, Sep 3, 2021
25-50
❑
50 - 100
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
100 - 150
❑
150 - 200
Date(s) aerial images were photographed: Jul 28, 2019—Jul 30,
2019
> 200
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
29
Custom Soil Resource Report
Table —Depth to a Selected Soil Restrictive Layer: Lithic bedrock
(Snow Camp Solar, NC)
Map unit symbol
Map unit name
Rating (centimeters)
Acres in AOI
Percent of AOI
ChA
Chewacla loam, 0 to 2
>200
1.6
2.1 %
percent slopes,
frequently flooded
CnB2
Cullen clay loam, 2 to 6
>200
20.8
28.1 %
percent slopes,
moderately eroded
CnC2
Cullen clay loam, 6 to 10
>200
1.6
2.1 %
percent slopes,
moderately eroded
CnD2
Cullen clay loam, 10 to
>200
0.0
0.0%
15 percent slopes,
moderately eroded
HnB
Herndon silt loam, 2 to 6
>200
9.7
13.0%
percent slopes
HnC
Herndon silt loam, 6 to
>200
0.1
0.2%
10 percent slopes
MaB
Mandale-Secrest
198
39.0
52.6%
complex, 2 to 6
percent slopes
W
Water
>200
1.4
1.9%
Totals for Area of Interest
74.1
100.0%
Rating Options —Depth to a Selected Soil Restrictive Layer:
Lithic bedrock (Snow Camp Solar, NC)
Units of Measure: centimeters
Restriction Kind: Lithic bedrock
Aggregation Method: Dominant Component
Component Percent Cutoff. None Specified
Tie -break Rule: Lower
Interpret Nulls as Zero: No
Depth to a Selected Soil Restrictive Layer: Paralithic
bedrock (Snow Camp Solar, NC)
A "restrictive layer" is a nearly continuous layer that has one or more physical,
chemical, or thermal properties that significantly impede the movement of water and
air through the soil or that restrict roots or otherwise provide an unfavorable root
environment. Examples are bedrock, cemented layers, dense layers, and frozen
layers.
30
Custom Soil Resource Report
This theme presents the depth to the user selected type of restrictive layer as
described in for each map unit. If no restrictive layer is described in a map unit, it is
represented by the "greater than 200" depth class.
This attribute is actually recorded as three separate values in the database. A low
value and a high value indicate the range of this attribute for the soil component. A
"representative" value indicates the expected value of this attribute for the
component. For this soil property, only the representative value is used.
31
In
In
641700
35° 52' 0" N
g
0
g
r
35° 51' 31" N
641700 641800 641900 642000 642100 642200 642300
b
Map Scale: 1:6,220 if printed on A landscape (11" x 8.5") sheet.
Meters
N 0 50 100 200 300
Feet
0 300 600 1200 1800
Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 17N WGS84
32
Custom Soil Resource Report
Map —Depth to a Selected Soil Restrictive Layer: Paralithic bedrock (Snow Camp Solar, NC)
641800 641900 642000 642100 642200 642300 642400 642500 642600 642700 642800 642900
643000
35° 52' 0" N
r
r
g
0
r
r
35° 51' 31" N
642400 642500 642600 642700 642800 642900 64300D
v
MAP LEGEND
Area of Interest (AOI)
0
Area of Interest (AOI)
Soils
Soil Rating
Polygons
0
0-25
0
25-50
0
50 - 100
0
100 - 150
0
150 - 200
0
> 200
0
Not rated or not available
Soil Rating
Lines
~
0-25
r 0
25-50
Custom Soil Resource Report
❑ Not rated or not available
Water Features
Streams and Canals
Transportation
i--1-+ Rails
0 Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
MAP INFORMATION
The soil surveys that comprise your AOI were mapped at
1:12,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
.
50 - 100
projection, which preserves direction and shape but distorts
.
100 -150
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
.
150 - 200
accurate calculations of distance or area are required.
> 200
This product is generated from the USDA-NRCS certified data as
A 0
Not rated or not available
of the version date(s) listed below.
Soil Rating
Points
0 - 25
Soil Survey Area: Alamance County, North Carolina
Survey Area Data: Version 20, Sep 3, 2021
25-50
❑
50 - 100
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
100 - 150
❑
150 - 200
Date(s) aerial images were photographed: Jul 28, 2019—Jul 30,
2019
> 200
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
33
Custom Soil Resource Report
Table —Depth to a Selected Soil Restrictive Layer: Paralithic
bedrock (Snow Camp Solar, NC)
Map unit symbol
Map unit name
Rating (centimeters)
Acres in AOI
Percent of AOI
ChA
Chewacla loam, 0 to 2
>200
1.6
2.1 %
percent slopes,
frequently flooded
CnB2
Cullen clay loam, 2 to 6
>200
20.8
28.1 %
percent slopes,
moderately eroded
CnC2
Cullen clay loam, 6 to 10
>200
1.6
2.1 %
percent slopes,
moderately eroded
CnD2
Cullen clay loam, 10 to
>200
0.0
0.0%
15 percent slopes,
moderately eroded
HnB
Herndon silt loam, 2 to 6
>200
9.7
13.0%
percent slopes
HnC
Herndon silt loam, 6 to
>200
0.1
0.2%
10 percent slopes
MaB
Mandale-Secrest
163
39.0
52.6%
complex, 2 to 6
percent slopes
W
Water
>200
1.4
1.9%
Totals for Area of Interest
74.1
100.0%
Rating Options —Depth to a Selected Soil Restrictive Layer:
Paralithic bedrock (Snow Camp Solar, NC)
Units of Measure: centimeters
Restriction Kind: Paralithic bedrock
Aggregation Method: Dominant Component
Component Percent Cutoff. None Specified
Tie -break Rule: Lower
Interpret Nulls as Zero: No
Water Features
Water Features include ponding frequency, flooding frequency, and depth to water
table.
34
Custom Soil Resource Report
Depth to Water Table (Snow Camp Solar, NC)
"Water table" refers to a saturated zone in the soil. It occurs during specified
months. Estimates of the upper limit are based mainly on observations of the water
table at selected sites and on evidence of a saturated zone, namely grayish colors
(redoximorphic features) in the soil. A saturated zone that lasts for less than a
month is not considered a water table.
This attribute is actually recorded as three separate values in the database. A low
value and a high value indicate the range of this attribute for the soil component. A
"representative" value indicates the expected value of this attribute for the
component. For this soil property, only the representative value is used.
35
In
In
641700
35° 52' 0" N
g
0
g
r
35° 51' 31" N
641700 641800 641900 642000 642100 642200 642300
b
Map Scale: 1:6,220 if printed on A landscape (11" x 8.5") sheet.
Meters
N 0 50 100 200 300
Feet
0 300 600 1200 1800
Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 17N WGS84
36
Custom Soil Resource Report
Map —Depth to Water Table (Snow Camp Solar, NC)
641800 641900 642000 642100 642200 642300 642400 642500 642600 642700 642800 642900
643000
35° 52' 0" N
r
r
g
0
r
r
35° 51' 31" N
642400 642500 642600 642700 642800 642900 64300D
v
MAP LEGEND
Area of Interest (AOI)
0
Area of Interest (AOI)
Soils
Soil Rating
Polygons
0
0-25
0
25-50
0
50 - 100
0
100 - 150
0
150 - 200
0
> 200
0
Not rated or not available
Soil Rating
Lines
~
0-25
r 0
25-50
Custom Soil Resource Report
❑ Not rated or not available
Water Features
Streams and Canals
Transportation
i--1-+ Rails
0 Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
MAP INFORMATION
The soil surveys that comprise your AOI were mapped at
1:12,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
.
50 - 100
projection, which preserves direction and shape but distorts
.
100 -150
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
.
150 - 200
accurate calculations of distance or area are required.
> 200
This product is generated from the USDA-NRCS certified data as
A 0
Not rated or not available
of the version date(s) listed below.
Soil Rating
Points
0 - 25
Soil Survey Area: Alamance County, North Carolina
Survey Area Data: Version 20, Sep 3, 2021
25-50
❑
50 - 100
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
100 - 150
❑
150 - 200
Date(s) aerial images were photographed: Jul 28, 2019—Jul 30,
2019
> 200
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
37
Custom Soil Resource Report
Table —Depth to Water Table (Snow Camp Solar, NC)
Map unit symbol
Map unit name
Rating (centimeters)
Acres in AOI
Percent of AOI
ChA
Chewacla loam, 0 to 2
38
1.6
2.1 %
percent slopes,
frequently flooded
CnB2
Cullen clay loam, 2 to 6
>200
20.8
28.1 %
percent slopes,
moderately eroded
CnC2
Cullen clay loam, 6 to 10
>200
1.6
2.1 %
percent slopes,
moderately eroded
CnD2
Cullen clay loam, 10 to
>200
0.0
0.0%
15 percent slopes,
moderately eroded
HnB
Herndon silt loam, 2 to 6
>200
9.7
13.0%
percent slopes
HnC
Herndon silt loam, 6 to
>200
0.1
0.2%
10 percent slopes
MaB
Mandale-Secrest
46
39.0
52.6%
complex, 2 to 6
percent slopes
W
Water
>200
1.4
1.9%
Totals for Area of Interest
74.1
100.0%
38
Custom Soil Resource Report
Rating Options —Depth to Water Table (Snow Camp Solar, NC)
Units of Measure: centimeters
Aggregation Method: Dominant Component
Component Percent Cutoff.- None Specified
Tie -break Rule: Lower
Interpret Nulls as Zero: No
Beginning Month: January
Ending Month: December
39