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Hydrologic Soil Groups
This webpage contains the current hydrologic soil group data for map units in all Soil Survey Geographic Database (SSURGO) survey areas in New York. The data is organized alphabetically by survey area name, and by map unit symbol within each survey area. New! View or download updated Hydrologic Soil Groups lists. Updates to the official SSURGO soil survey data are now posted only once per year, on October 1. We plan to post an updated version of this hydrologic soil group spreadsheet each year, soon after October 1, in order to capture any recent changes to hydrologic soil group data in New York. Note that in map units with more than one named (major) component, more than one row is displayed in the spreadsheet. This is because hydrologic soil group is assigned at the component level. Typically, the first component in the map unit name makes up the highest percentage of the map unit. Other sources for current hydrologic soil group data:
Hydrologic Soil Groups (HSG) for soils in New York have been updated in the SSURGO data. The updates were done so that the data is consistent with the current criteria for determining group assignments, as defined in the National Engineering Handbook, Part 630, Chapter 7. Please note that the HSG for each soil is now calculated directly from the properties specific to that component, within a particular survey area. For some soils, the range of possible values for a property may overlap the separation between one HSG and another. This means that a soil in one county may be in a different group than a soil of the same name in another county. To be certain that current data is being used, hydrologic soil group information should be obtained from the current SSURGO soil data, not from outdated lists. Major changes to hydrologic soil group data in New York:
Reference: National Engineering Handbook, Part 630 Hydrology, Chapter 7 Hydrologic Soil Group. January 2009. Contact InformationAmy Langner, Resource Soil Scientist Olga Vargas, Resource Soil Scientist Steve Sprecher, Resource Soil Scientist If you encounter problems with this Web page, please contact the Webmaster at 315-477-6524. |
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