SW1230701_Soils/Geotechnical Report_20230719

Soil Map—Yancey County, North Carolina
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Soil Map may not be valid at t Doi�o U@°
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391800 391903 392000 392100 392200 392300 392400
3 3
Map Scale:1:4,470 if printed on A portrait(8.5"x 11")sheet.
Meters
' N 0 50 100 200 300 m
Feet
0 cti200 400 m 800 1200
Map projeon:Web Mercator Coer coordinates:WGS84 Edge tics:UTM Zone 17N WGS84
USDA Natural Resources Web Soil Survey 5/16/2023
Conservation Service National Cooperative Soil Survey Page 1 of 3

Soil Map—Yancey County, North Carolina
MAP LEGEND MAP INFORMATION
Area of Interest(AOI) A Spoil Area The soil surveys that comprise your AOI were mapped at
ILI Area of Interest(AOI) 1:12,000.
Q StonySpot
Soils a) Very Stony Spot Warning:Soil Map may not be valid at this scale.
0 Soil Map Unit Polygons
Wet Spot Enlargement of maps beyond the scale of mapping can cause
,.rr Soil Map Unit Lines misunderstanding of the detail of mapping and accuracy of soil
Other line placement.The maps do not show the small areas of
• Soil Map Unit Points contrasting soils that could have been shown at a more detailed
Special Line Features
Special Point Features scale.
u Blowout Water Features
Streams and Canals Please rely on the bar scale on each map sheet for map
El Borrow Pit measurements.
Transportation
Clay Spot Rails Source of Map: Natural Resources Conservation Service
0 Closed Depression Web Soil Survey URL:
ti Interstate Highways Coordinate System: Web Mercator(EPSG:3857)
X Gravel Pit US Routes
oio Maps from the Web Soil Survey are based on the Web Mercator
Gravelly Spot Major Roads projection,which preserves direction and shape but distorts
distance and area.A projection that preserves area,such as the
Q Landfill Local Roads Albers equal-area conic projection,should be used if more
Lava Flow accurate calculations of distance or area are required.
Background
+• Marsh or swamp Aerial Photography This product is generated from the USDA-NRCS certified data as
of the version date(s)listed below.
Mine or Quarry
Soil Survey Area: Yancey County,North Carolina
O Miscellaneous Water Survey Area Data: Version 21,Sep 12,2022
Q Perennial Water Soil map units are labeled(as space allows)for map scales
V Rock Outcrop 1:50,000 or larger.
Saline Spot Date(s)aerial images were photographed: Apr 1,2022—May 9,
2022
Sandy Spot
The orthophoto or other base map on which the soil lines were
Severely Eroded Spot compiled and digitized probably differs from the background
imagery displayed on these maps.As a result,some minor
4) Sinkhole shifting of map unit boundaries may be evident.
33 Slide or Slip
Sodic Spot
7\ Natural Resources Web Soil Survey 5/16/2023
i Conservation Service National Cooperative Soil Survey Page 2 of 3

Soil Map—Yancey County, North Carolina
Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
DeA Dellwood-Reddies complex,0 5.6 22.2%
to 3 percent slopes,
occasionally flooded
EaC2 Evard-Cowee complex,8 to 15 1.8 7.1%
percent slopes,moderately
eroded
EcD Evard-Cowee complex,central 7.1 28.1%
mountain, 15 to 30 percent
slopes,stony
EcE Evard-Cowee complex,central 3.0 11.7%
mountain,30 to 50 percent
slopes,stony
FeE2 Fannin sandy clay loam,30 to 3.1 12.2%
50 percent slopes,eroded
HuE Huntdale clay loam,30 to 50 1.3 5.1%
percent slopes,stony
NkA Nikwasi sandy loam,0 to 3 1.6 6.4%
percent slopes,occasionally
flooded
ScC Saunook sandy loam,8 to 15 1.8 7.2%
percent slopes,stony
Totals for Area of Interest 25.3 100.0%
USDA Natural Resources Web Soil Survey 5/16/2023
rari Conservation Service National Cooperative Soil Survey Page 3 of 3

Hydrologic Soil Group—Yancey County, North Carolina a
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35°51'32"N 35°51'32"N
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35°51'2"N I 35°51'2"N
391800 391900 392000 392100 392200 392300 392400
3 3
Map Scale:1:4,470 if printed on A portrait(8.5"x li")sheet.
Meters
N o 50 100 200 300 P
Feet
A
0 200 400 m 800 1200
Map projection:Web Mercator Coer coordinates:WGS84 Edge tics:UTM Zone 17N WGS84
USDA Natural Resources Web Soil Survey 5/16/2023
dial Conservation Service National Cooperative Soil Survey Page 1 of 4

Hydrologic Soil Group—Yancey County, North Carolina
MAP LEGEND MAP INFORMATION
Area of Interest(AOI) p c The soil surveys that comprise your AOI were mapped at
Area of Interest(AOI) 1:12,000.
C/D
Soils D Warning:Soil Map may not be valid at this scale.
Soil Rating Polygons
l A p Not rated or not available Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
n A/D Water Features line placement.The maps do not show the small areas of
Streams and Canals contrasting soils that could have been shown at a more detailed
n B scale.
Transportation
B/D
Rails Please rely on the bar scale on each map sheet for map
n C measurements.
•..i Interstate Highways
C/D US Routes Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
0 D Major Roads Coordinate System: Web Mercator(EPSG:3857)
Not rated or not available Local Roads
Maps from the Web Soil Survey are based on the Web Mercator
Soil Rating Lines Background projection,which preserves direction and shape but distorts
• A distance and area.A projection that preserves area,such as the
III Aerial Photography Albers equal-area conic projection,should be used if more
• • ND accurate calculations of distance or area are required.
•+r B This product is generated from the USDA-NRCS certified data as
..r B/D of the version date(s)listed below.
• r C Soil Survey Area: Yancey County,North Carolina
Survey Area Data: Version 21,Sep 12,2022
• • C/D
Soil map units are labeled(as space allows)for map scales
• • D 1:50,000 or larger.
• • Not rated or not available Date(s)aerial images were photographed: Apr 1,2022—May 9,
2022
Soil Rating Points
G A The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
▪ ND imagery displayed on these maps.As a result,some minor
• B shifting of map unit boundaries may be evident.
▪ B/D
USDA Natural Resources Web Soil Survey 5/16/2023
011. Conservation Service National Cooperative Soil Survey Page 2 of 4

Hydrologic Soil Group—Yancey County,North Carolina
Hydrologic Soil Group
Map unit symbol Map unit name Rating Acres in AOI Percent of AOI
DeA Dellwood-Reddies B 5.6 22.2%
complex,0 to 3
percent slopes,
occasionally flooded
EaC2 Evard-Cowee complex, C 1.8 7.1%
8 to 15 percent
slopes,moderately
eroded
EcD Evard-Cowee complex, B 7.1 28.1%
central mountain, 15
to 30 percent slopes,
stony
EcE Evard-Cowee complex, B 3.0 11.7%
central mountain,30
to 50 percent slopes,
stony
FeE2 Fannin sandy clay loam, B 3.1 12.2%
30 to 50 percent
slopes,eroded
HuE Huntdale clay loam,30 B 1.3 5.1%
to 50 percent slopes,
stony
NkA Nikwasi sandy loam,0 A/D 1.6 6.4%
to 3 percent slopes,
occasionally flooded
ScC Saunook sandy loam,8 B 1.8 7.2%
to 15 percent slopes,
stony
Totals for Area of Interest 25.3 100.0%
USDA Natural Resources Web Soil Survey 5/16/2023
rari Conservation Service National Cooperative Soil Survey Page 3 of 4

Hydrologic Soil Group—Yancey County,North Carolina
Description
Hydrologic soil groups are based on estimates of runoff potential. Soils are
assigned to one of four groups according to the rate of water infiltration when the
soils are not protected by vegetation, are thoroughly wet, and receive
precipitation from long-duration storms.
The soils in the United States are assigned to four groups (A, B, C, and D) and
three dual classes (A/D, B/D, and C/D). The groups are defined as follows:
Group A. Soils having a high infiltration rate (low runoff potential)when
thoroughly wet. These consist mainly of deep, well drained to excessively
drained sands or gravelly sands. These soils have a high rate of water
transmission.
Group B. Soils having a moderate infiltration rate when thoroughly wet. These
consist chiefly of moderately deep or deep, moderately well drained or well
drained soils that have moderately fine texture to moderately coarse texture.
These soils have a moderate rate of water transmission.
Group C. Soils having a slow infiltration rate when thoroughly wet. These consist
chiefly of soils having a layer that impedes the downward movement of water or
soils of moderately fine texture or fine texture. These soils have a slow rate of
water transmission.
Group D. Soils having a very slow infiltration rate (high runoff potential)when
thoroughly wet. These consist chiefly of clays that have a high shrink-swell
potential, soils that have a high water table, soils that have a claypan or clay
layer at or near the surface, and soils that are shallow over nearly impervious
material. These soils have a very slow rate of water transmission.
If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is
for drained areas and the second is for undrained areas. Only the soils that in
their natural condition are in group D are assigned to dual classes.
Rating Options
Aggregation Method: Dominant Condition
Component Percent Cutoff.None Specified
Tie-break Rule: Higher
USDA Natural Resources Web Soil Survey 5/16/2023
Conservation Service National Cooperative Soil Survey Page 4 of 4

Depth to Water Table—Yancey County, North Carolina
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391800 391900 392000 3921W 3922W 392300 392400
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Soil Map may not be valid at t Du o U@°
35°51'2"N ". + '- 35°51'2"N
391800 391900 392000 392192 392293 3923W 392400
3 3
ro
Map Scale:1:4,470 if printed on A portrait(8.5"x 11")sheet.
Meters
2 N 0 50 100 200 300 m
Feet
0 cti200 400 m 800 1200
Map projeon:Web Mercator Coer coordinates:WGS84 Edge tics:UTM Zone 17N WGS84
USDA Natural Resources Web Soil Survey 5/16/2023
Conservation Service National Cooperative Soil Survey Page 1 of 4

Depth to Water Table—Yancey County, North Carolina
MAP LEGEND MAP INFORMATION
Area of Interest(AOI) Not rated or not available The soil surveys that comprise your AOI were mapped at
Area of Interest(AOI) 1:12,000.
Water Features
Soils Streams and Canals Warning:Soil Map may not be valid at this scale.
Soil Rating Polygons Transportation Enlargement of maps beyond the scale of mapping can cause
0 0-25 Rails misunderstanding of the detail of mapping and accuracy of soil
n 25-50 line placement.The maps do not show the small areas of
..i Interstate Highways contrasting soils that could have been shown at a more detailed
n 50-100 US Routes scale.
100-150 Major Roads
Please rely on the bar scale on each map sheet for map
n 150-200 Local Roads measurements.
>200 Background Source of Map: Natural Resources Conservation Service
ElNot rated or not available Aerial Photography Web Soil Survey URL:
Coordinate System: Web Mercator(EPSG:3857)
Soil Rating Lines
Maps from the Web Soil Survey are based on the Web Mercator
0-25 projection,which preserves direction and shape but distorts
• • 25-50 distance and area.A projection that preserves area,such as the
Albers equal-area conic projection,should be used if more
• . 50-100 accurate calculations of distance or area are required.
• r 100-150 This product is generated from the USDA-NRCS certified data as
r 150-200 of the version date(s)listed below.
• >200 Soil Survey Area: Yancey County,North Carolina
Survey Area Data: Version 21,Sep 12,2022
• r Not rated or not available
Soil map units are labeled(as space allows)for map scales
Soil Rating Points 1:50,000 or larger.
• 0-25 Date(s)aerial images were photographed: Apr 1,2022—May 9,
▪ 25-50 2022
O 50-100 The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
p 100-150 imagery displayed on these maps.As a result,some minor
p 150-200 shifting of map unit boundaries may be evident.
▪ >200
USDA Natural Resources Web Soil Survey 5/16/2023
011. Conservation Service National Cooperative Soil Survey Page 2 of 4

Depth to Water Table—Yancey County, North Carolina
Depth to Water Table
Map unit symbol Map unit name Rating(centimeters) Acres in AOI Percent of AOI
DeA Dellwood-Reddies 92 5.6 22.2%
complex,0 to 3
percent slopes,
occasionally flooded
EaC2 Evard-Cowee complex, >200 1.8 7.1%
8 to 15 percent
slopes, moderately
eroded
EcD Evard-Cowee complex, i>200 7.1 28.1%
central mountain, 15
to 30 percent slopes,
stony
EcE Evard-Cowee complex, >200 3.0 11.7%
central mountain,30
to 50 percent slopes,
stony
FeE2 Fannin sandy clay loam, >200 3.1 12.2%
30 to 50 percent
slopes,eroded
HuE Huntdale clay loam,30 i>200 1.3 5.1%
to 50 percent slopes,
stony
NkA Nikwasi sandy loam,0 15 1.6 6.4%
to 3 percent slopes,
occasionally flooded
ScC Saunook sandy loam,8 >200 1.8 7.2%
to 15 percent slopes,
stony
Totals for Area of Interest 25.3 100.0%
Description
"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.
USDA Natural Resources Web Soil Survey 5/16/2023
Conservation Service National Cooperative Soil Survey Page 3 of 4