{
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  "accessLevel": "public",
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "deepgis",
    "hasEmail": "mailto:deep.helpdesk.footprints@ct.gov"
  },
  "description": "<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;'><",
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  "issued": "2023-12-14",
  "keyword": [
    "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"
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  "landingPage": "https://geodata.ct.gov/datasets/CTDEEP::soils-hydric-rating",
  "modified": "2026-07-28",
  "publisher": {
    "@type": "org:Organization",
    "name": "U.S. Department of Agriculture, Natural Resources Conservation Service"
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  "spatial": "-73.7255,40.9498,-71.7814,42.0484",
  "theme": [
    "geospatial"
  ],
  "title": "Soils Hydric Rating"
}