HB 2095 requires developers to obtain either a "certificate of assured water supply" from the state director or a written commitment from a designated city, town, or private water company before selling subdivided land in Arizona's active management areas. It directly affects land developers and real estate transactions, mandating proof of sufficient water supply for new subdivisions. Key provisions include designating cities/towns/private providers with assured water supply (especially those using Central Arizona Project water), exempting mineral extraction developments, and allowing gray water systems to reduce water demand requirements under specific conditions. The bill title mentions "well depth," but the actual text focuses on water supply verification processes, not well depth regulations. This is a procedural requirement for land sales, not a substantive water policy change.