In 2016, a Washington Supreme Court ruling put the brakes on rural homebuilding in several areas across the state. The so-called Hirst decision required counties to prove that new household wells wouldn’t drain needed water from nearby streams before they issued building permits. But last month, state legislators, under pressure from landowners and building and realtors’ associations, passed a bill that, with some caveats, allows new wells. The challenge of balancing rural growth with the needs of other water users and the environment extends far beyond Washington state. How it plays out here and across the region will determine how many more people can join the ranks of the millions of rural Westerners who rely on domestic water wells.