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  • Hydrologic Soils Groups Maps Updated by the Natural Resources Conservation Service

    Oct 26, 2016 | Read More News
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    The Natural Resources Conservation Service (NRCS) has updated the Hydrologic Soils Groups maps for Pima County, effective October 1, 2016, the starting date of the NRCS fiscal year. Every October 1, if any additional revisions have been adopted by the NRCS, the District will obtain the revisions and update the Hydrologic Soils Groups classifications available through our website. The 2016 revisions are now available, and the updated soils classifications should be used for all engineering analyses initiated after October 1, 2016. As annual updates are provided, some Hydrologic Soils Groups may be subject to change. The Director’s letter provides additional information.