HB 2358
In CommitteeHouse
Aquifer recharge areas
Considering critical aquifer recharge areas when revising an urban growth area.
This status may be delayed. See Action History below for the latest updates.
How does a bill become law?
- Introduced: The bill is filed and assigned a number.
- Committee: A subject-matter committee holds hearings, takes public testimony, and decides whether to advance the bill.
- Floor Vote: The full chamber (House or Senate) debates and votes on the bill.
- Opposite Chamber: The bill repeats the committee and floor vote process in the other chamber.
- Governor: The Governor reviews the bill and decides whether to sign or veto it.
- Signed: The bill has been signed into law.
AI Analysis
This bill requires counties to consider critical aquifer recharge areas when revising urban growth area boundaries — specifically limiting expansion into such areas unless strict conditions are met. It also clarifies definitions and adds protections to prevent net increases in urbanization of aquifer recharge zones.
- Requires counties to consider critical aquifer recharge areas when revising urban growth area boundaries — specifically limiting expansion into such areas unless certain conditions are met.
- Prohibits adding more than 15% non-aquifer critical areas to urban growth areas during revisions, and explicitly bars net increases to critical aquifer recharge areas within the expanded area.
- Clarifies that 'critical aquifer recharge areas' means areas previously designated by the county and maintained under local development regulations, even if included in a revised urban growth area.
- Maintains existing deadlines for comprehensive plan reviews (e.g., June 30, 2034 for King, Pierce, Snohomish, and Kitsap counties), but adds aquifer-specific constraints to urban growth area revisions.
- Allows cities under 500 people in rural areas to opt out of full plan reviews, but still requires updates to critical areas regulations, capital facilities, and transportation elements.
Who is affected
- Local governments (counties and cities) — Counties and cities must review and potentially revise their urban growth area boundaries and development regulations, especially where aquifer recharge areas are involved.
- Landowners and developers — May be affected if their land is considered for inclusion or exclusion from urban growth areas, potentially impacting property rights, development potential, or water resource protection.
- Residents relying on groundwater — May benefit from stronger protections for groundwater recharge zones, which helps ensure long-term drinking water and agricultural water supply.
- Farmers and agricultural producers — May need to adjust agricultural practices or land-use plans if their land falls within newly designated or revised aquifer recharge areas.
Pro/Con Analysis
Stronger case for benefits
Potential Benefits (4)
By prohibiting net increases in urbanization of critical aquifer recharge areas, the bill strengthens long-term protection of groundwater recharge zones—helping ensure reliable drinking water and agricultural supply for millions of Washingtonians who rely on groundwater, especially in growing regions like the Puget Lowland.
EnvironmentPeopleRef: RCW 36.70A.130(3)(a)(iii)Protecting aquifer recharge areas reduces long-term risks of groundwater contamination and depletion—critical for public health and emergency response (e.g., fire suppression, drought resilience), particularly in areas where surface water is limited and communities depend on wells.
Public SafetyPeopleRef: RCW 36.70A.130(3)(a)(iii)Preserving aquifer recharge areas supports sustainable agriculture by maintaining reliable groundwater for irrigation—benefiting small and medium-sized farms that supply local food systems and are vulnerable to water shortages.
agriculturePeopleRef: RCW 36.70A.130(3)(a)(iii)The bill ties state grant eligibility to compliance with critical areas protections—including aquifer recharge—creating financial incentives for local governments to invest in sustainable planning, which can improve long-term infrastructure resilience and reduce future public costs.
Local GovernmentPeopleRef: RCW 36.70A.130(7)(a)
Potential Concerns (4)
Restricting urban growth area expansion into critical aquifer recharge areas may reduce available developable land in high-demand regions (e.g., Puget Sound), potentially contributing to upward pressure on housing prices and limiting new housing supply—especially in counties like King, Pierce, and Snohomish where land is already scarce.
HousingPeopleRef: RCW 36.70A.130(3)(a)(iii)The requirement for counties to conduct technical analysis and public review of urban growth area changes—including aquifer-specific constraints—imposes new administrative and technical costs on local governments, particularly smaller counties with limited staff and expertise, potentially diverting resources from other public services.
Local GovernmentPeopleRef: RCW 36.70A.130(1)(b)(iii)Developers and landowners may face increased regulatory uncertainty and reduced development opportunities on land previously considered viable for urban expansion, especially in rapidly growing areas where aquifer recharge zones overlap with available land—potentially reducing property values and development-related economic activity.
Business & EmploymentLean peopleRef: RCW 36.70A.130(3)(a)(iii)The opt-out provision for small cities (<500 people) still requires updates to critical areas, capital facilities, and transportation elements—creating a partial compliance burden that may be disproportionately difficult for very small municipalities lacking technical capacity.
Local GovernmentLean peopleRef: RCW 36.70A.130(1)(b)(i)-(ii)
Who Is Most Affected
Rural and suburban homeowners relying on private wells benefit from stronger groundwater protection, reducing contamination and scarcity risks—especially important in fast-growing counties where well-dependent communities face growing pressure on water supply.
Large landowners and developers with parcels in or near designated aquifer recharge zones may face reduced development potential and lower property values, especially in high-demand areas where land is scarce and demand is high.
Small farmers and agricultural producers benefit from preserved groundwater for irrigation and reduced regulatory risk—though some may face new restrictions if their land is newly designated as critical recharge area during plan updates.
Local governments in fast-growing counties (e.g., King, Pierce) face increased technical and administrative burdens to comply with aquifer protections, but may benefit from state grant eligibility tied to compliance.
Municipal water utilities and public utility districts benefit from reduced long-term water quality and quantity risks, lowering future infrastructure and treatment costs—though they may face challenges if new urban growth is constrained in areas where system expansion was planned.