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Service Description: The U.S. Geological Survey and the Nevada Division of Water Resources, Department of Conservation and Natural Resources, divided the state into discrete hydrologic units for water planning and management purposes. These administrative boundaries have been identified as 232 Hydrographic Basins (1-232; hydrographic sub-basins designated A, B, C, etc.) within 14 major Hydrographic Regions. There are a total of 256 hydrographic basins and sub-basins. Field investigation regions are included to support field offices for effective resource management.
The designation indicates whether a hydrographic basin has been identified as a basin where permitted groundwater rights approach or exceed the estimated average annual recharge and the water resources are being depleted or require additional administration. Under such conditions, the State Engineer may designate a groundwater basin and, in the interest of public welfare, declare preferred uses (e.g., municipal and industrial, domestic, agriculture, etc.) (Nevada Revised Statute 534.120). The State Engineer has additional authority in the administration of the water resources within a designated groundwater basin.
Last updated May 4, 2023.
Map Name: Basins State Engineer Admin Boundaries
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Service Item Id: 338e7e3ae0744be49014d8017ff358d9
Copyright Text: NDWR
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Title: Map1
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Keywords: basin, hydro, hydrographic, groundwater, boundary, state, nevada, engineer, ndwr, admin, water, resource
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