Alaska · off-grid water rights
Whether a new off-grid home can legally get its own water in Alaska: the state well and water-rights rules, then the 2 counties where a specific groundwater basin adds a catch — each cited to the state water agency.
Alaska water rules
A water right is required only to appropriate a 'significant amount' of water (>5,000 gal in a single day, or recurring >500 gpd from one source; AS 46.15). A typical single-family domestic well is below that and needs no water right — EXCEPT inside a designated Critical Water Management Area.
Limit: no water right below the 'significant amount' threshold (<=500 gpd recurring, or <=5,000 gal/day)
Alaska DNR DMLW — Water Rights (AS 46.15 / 11 AAC 93) ↗No residential greywater provision; defaults to onsite/septic.
Greywater Action / EPA REUSExplorer ↗Prior appropriation; small domestic/stock uses generally permit-free.
National Agricultural Law Center ↗2 constrained counties in Alaska
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See the full Alaska county ranking, compare states on the water-rights hub, or read how water access is scored. Physical water is dimmed — never erased — where a county sits in one of these basins, household-first.
General guidance, not legal advice. Off-grid, building, and land-use rules are often set at the county level and change often. Verify with your county and state before acting. Data reviewed 2026-06-26.