ID S1083

Redefines "domestic purposes" water use to allow either up to 13,000 gallons per day with irrigation of up to 0.5 acres, or up to 2.8 acre-feet per year for other uses, and explicitly excludes mobile home parks, apartments, subdivisions, and commercial establishments from the domestic exemption unless they meet volume limits

Requires water permit applications for new domestic diversions within subdivisions located in areas where the Department of Water Resources has issued a moratorium or designated critical groundwater or groundwater management areas, except for in-home uses and livestock watering

Establishes civil penalties for exceeding domestic water right limits: $500 per 0.1 acre of excess irrigation and $100 per day or per acre-foot for other excess use, with penalties capped at $5,000 annually and filed as liens against property until paid

Mandates subdivisions within municipal service areas design shared wells or public water systems to integrate with and eventually connect to municipal providers, with water rights conveyed to the municipal provider upon connection

Requires subdivisions to use reasonably available surface water for irrigation and include delivery system descriptions on plats, with local governing boards required to consider effects on groundwater when amending comprehensive plans

Takes effect July 1, 2025, under emergency declaration