20190629 Ver 1_20190502_16062004401_19_Hydric_Rating_by_Map_Unit_20190512

N
335290
0
350 620" N
350 6' 10" N
335290 335320 335350 335380 335410
3
io
Map Scale: 1:1,520 if printed on A portrait (8.5" x 11") sheet
Meters
N 0 20 40 80 120
Feet
0 50 100 200 300
Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 17N WGS84
usDA Natural Resources Web Soil Survey
= Conservation Service National Cooperative Soil Survey
Hydric Rating by Map Unit —Transylvania County, North Carolina
(US 178 double pipe soils)
335320 335350 335380 335410 335440 335470
CR4e![1�?W rLI
N
3355W
35o 620" N
0
n
35o 6' 10" N
335500
3
5/2/2019
Page 1 of 5

Hydric Rating by Map Unit —Transylvania County, North Carolina
(US 178 double pipe soils)
MAP LEGEND
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Rating Polygons
0 Hydric (100%)
0 Hydric (66 to 99%)
0 Hydric (33 to 65%)
0 Hydric (1 to 32%)
0 Not Hydric (0%)
0 Not rated or not available
Soil Rating Lines
~ Hydric (100%)
r r Hydric (66 to 99%)
r r Hydric (33 to 65%)
r Hydric (1 to 32%)
r 0 Not Hydric (0%)
r Not rated or not available
Soil Rating Points
Hydric (100%)
0 Hydric (66 to 99%)
0 Hydric (33 to 65%)
0 Hydric (1 to 32%)
0 Not Hydric (0%)
® Not rated or not available
Water Features
Streams and Canals
Transportation
§--" Rails
,.� 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
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
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: Transylvania County, North Carolina
Survey Area Data: Version 17, Sep 10, 2018
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: May 21, 2015—Nov
28, 2017
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.
USDA Natural Resources Web Soil Survey 5/2/2019
Conservation Service National Cooperative Soil Survey Page 2 of 5

Hydric Rating by Map Unit —Transylvania County, North Carolina
US 178 double pipe soils
Hydric Rating by Map Unit
Map unit symbol
Map unit name
Rating
Acres in AOI
Percent of AOI
AeF
Chestnut-Edneyville
0
0.6
5.1%
complex, 30 to 50
percent slopes, stony
Ashe-Chestnut complex,
0
AhG
4.8
45.0%
50 to 95 percent
slopes, very rocky
TuF
Toecane-Tusquitee
0
5.4
49.9%
complex, 30 to 50
percent slopes, very
bouldery
Totals for Area of Interest
10.8
100.0%
USDA Natural Resources Web Soil Survey 5/2/2019
r Conservation Service National Cooperative Soil Survey Page 3 of 5

Hydric Rating by Map Unit —Transylvania County, North Carolina
US 178 double pipe soils
Description
This rating indicates the percentage of map units that meets the criteria for hydric
soils. Map units are composed of one or more map unit components or soil
types, each of which is rated as hydric soil or not hydric. Map units that are made
up dominantly of hydric soils may have small areas of minor nonhydric
components in the higher positions on the landform, and map units that are made
up dominantly of nonhydric soils may have small areas of minor hydric
components in the lower positions on the landform. Each map unit is rated based
on its respective components and the percentage of each component within the
map unit.
The thematic map is color coded based on the composition of hydric
components. The five color classes are separated as 100 percent hydric
components, 66 to 99 percent hydric components, 33 to 65 percent hydric
components, 1 to 32 percent hydric components, and less than one percent
hydric components.
In Web Soil Survey, the Summary by Map Unit table that is displayed below the
map pane contains a column named 'Rating'. In this column the percentage of
each map unit that is classified as hydric is displayed.
Hydric soils are defined by the National Technical Committee for Hydric Soils
(NTCHS) as soils that formed under conditions of saturation, flooding, or ponding
long enough during the growing season to develop anaerobic conditions in the
upper part (Federal Register, 1994). Under natural conditions, these soils are
either saturated or inundated long enough during the growing season to support
the growth and reproduction of hydrophytic vegetation.
The NTCHS definition identifies general soil properties that are associated with
wetness. In order to determine whether a specific soil is a hydric soil or nonhydric
soil, however, more specific information, such as information about the depth and
duration of the water table, is needed. Thus, criteria that identify those estimated
soil properties unique to hydric soils have been established (Federal Register,
2002). These criteria are used to identify map unit components that normally are
associated with wetlands. The criteria used are selected estimated soil properties
that are described in "Soil Taxonomy" (Soil Survey Staff, 1999) and "Keys to Soil
Taxonomy" (Soil Survey Staff, 2006) and in the "Soil Survey Manual" (Soil Survey
Division Staff, 1993).
If soils are wet enough for a long enough period of time to be considered hydric,
they should exhibit certain properties that can be easily observed in the field.
These visible properties are indicators of hydric soils. The indicators used to
make onsite determinations of hydric soils are specified in "Field Indicators of
Hydric Soils in the United States" (Hurt and Vasilas, 2006).
References:
Federal Register. July 13, 1994. Changes in hydric soils of the United States.
Federal Register. September 18, 2002. Hydric soils of the United States.
UIDANatural Resources Web Soil Survey 5/2/2019
Conservation Service National Cooperative Soil Survey Page 4 of 5

Hydric Rating by Map Unit —Transylvania County, North Carolina
US 178 double pipe soils
Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric
soils in the United States.
Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service.
U.S. Department of Agriculture Handbook 18.
Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for
making and interpreting soil surveys. 2nd edition. Natural Resources
Conservation Service. U.S. Department of Agriculture Handbook 436.
Soil Survey Staff. 2006. Keys to soil taxonomy. 10th edition. U.S. Department of
Agriculture, Natural Resources Conservation Service.
Rating Options
Aggregation Method: Percent Present
Component Percent Cutoff: None Specified
Tie -break Rule: Lower
U}7A Natural Resources Web Soil Survey 5/2/2019
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