Soils Hydric Rating

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 <

Data e Risorse

Campo	Valore
accessLevel	public
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catalog_@id	https://data.ct.gov/data.json
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identifier	https://www.arcgis.com/home/item.html?id=d5fb1dd0bfd54da4b7da0d78ae294f60&sublayer=3
issued	2023-12-14
landingPage	https://geodata.ct.gov/datasets/CTDEEP::soils-hydric-rating
metadata_type	geospatial
modified	2023-12-14
old-spatial	-73.7255,40.9498,-71.7814,42.0484
publisher	U.S. Department of Agriculture, Natural Resources Conservation Service
resource-type	Dataset
source_datajson_identifier	true
source_hash	9757e05ddcc4a0dc26acb5f5b9c3ba2aa7e9a276f9fdc6da3b64b2ba7bfa8098
source_schema_version	1.1
spatial	{"type": "Polygon", "coordinates": [[[-73.7255, 40.9498], [-73.7255, 42.0484], [-71.7814, 42.0484], [-71.7814, 40.9498], [-73.7255, 40.9498]]]}
theme	{geospatial}
Gruppi	AmeriGEOSS National Provider North America
Tag	AmeriGEO AmeriGEOSS CKAN GEO GEOSS National North America United States connecticut ctdeep database deep geoscience hydric parent-material prime-farmland soil soil-interpretation soil-survey soil-survey-geographic soils ssurgo stormwater-runnoff-management subsurface-sewage-disposal survey wetland
isopen	False
license_id	notspecified
license_title	License not specified
maintainer	deepgis
maintainer_email	deep.helpdesk.footprints@ct.gov
metadata_created	2025-09-24T02:22:53.397092
metadata_modified	2025-09-24T02:22:53.397101
notes	<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>This rating indicates the percentage of map units that meets the criteria </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>for hydric soils. Map units are composed of one or more map unit components </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>or soil types, each of which is rated as hydric soil or not hydric. Map units </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>that are made up dominantly of hydric soils may have small areas of minor </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>nonhydric components in the higher positions on the landform, and map units </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>that are made up dominantly of nonhydric soils may have small areas of minor </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>hydric components in the lower positions on the landform. Each map unit is </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>rated based on its respective components and the percentage of each component </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN>within the map unit. </SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN /></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>The thematic map is color coded based on the composition of hydric components. </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>The five color classes are separated as 100 percent hydric components, 66 to </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>99 percent hydric components, 33 to 65 percent hydric components, 1 to 32 percent </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN>hydric components, and less than one percent hydric components.</SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN /></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>In Web Soil Survey, the Summary by Map Unit table that is displayed below the </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>map pane contains a column named 'Rating'.In this column the percentage of each </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN>map unit that is classified as hydric is displayed.</SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN /></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Hydric soils are defined by the National Technical Committee for Hydric Soils (NTCHS) </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>as soils that formed under conditions of saturation, flooding, or ponding long enough </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>during the growing season to develop anaerobic conditions in the upper part (Federal </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Register, 1994). Under natural conditions, these soils are either saturated or </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>inundated long enough during the growing season to support the growth and reproduction </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN>of hydrophytic vegetation. </SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN /></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>The NTCHS definition identifies general soil properties that are associated with </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>wetness. In order to determine whether a specific soil is a hydric soil or nonhydric </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>soil, however, more specific information, such as information about the depth and </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>duration of the water table, is needed. Thus, criteria that identify those estimated </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>soil properties unique to hydric soils have been established (Federal Register, 2002). </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>These criteria are used to identify map unit components that normally are associated </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>with wetlands. The criteria used are selected estimated soil properties that are </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><
num_resources	6
num_tags	26
title	Soils Hydric Rating