SSB 6016
In CommitteeSenate
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 strengthens protections for critical aquifer recharge areas by requiring local governments to consider them when revising urban growth area boundaries — specifically, preventing net reductions in protected recharge areas during urban expansion. It also adds new limits on how and where urban growth areas can be expanded, ensuring aquifer protection remains a priority in land-use planning.
- Requires counties and cities to consider critical aquifer recharge areas when revising urban growth area boundaries — specifically, that revised urban growth areas may not result in a net increase in critical aquifer recharge areas.
- Adds new criteria for expanding urban growth areas: less than 15% of newly added land can be critical areas (excluding aquifer recharge areas), and the expansion must not reduce protection of existing aquifer recharge areas.
- Clarifies that 'critical aquifer recharge areas' includes areas previously designated by the county and maintained under local development regulations, even if they fall within an expanded urban growth area.
- Maintains existing deadlines for periodic review and revision of comprehensive plans and development regulations, with some flexibility for small or slow-growing jurisdictions.
- Requires local governments to include critical areas reviews as part of comprehensive plan updates, especially when adjusting urban growth boundaries.
Who is affected
- Local governments (counties and cities) — Counties and cities must review and potentially revise their urban growth area boundaries and development regulations to protect critical aquifer recharge areas, especially when expanding or adjusting urban growth boundaries.
- Developers and landowners — Developers and landowners in or near urban growth areas may face new restrictions or requirements if their land overlaps with newly designated or re-evaluated critical aquifer recharge areas.
- Residents in affected communities — Residents in rural or suburban areas near urban growth boundaries may see changes in land use rules that affect property rights, development potential, or water resource protections.
- State agencies — State agencies like the Department of Commerce (responsible for growth management) and the Department of Ecology (responsible for water resources) will need to provide guidance and technical assistance.
Pro/Con Analysis
Potential Benefits (5)
By requiring that revised urban growth areas not result in a net increase in critical aquifer recharge areas, the bill helps preserve groundwater resources that support drinking water, agriculture, and ecosystems — benefiting all residents who rely on aquifer-sourced water, especially in rapidly developing regions like Puget Sound.
EnvironmentPeopleRef: RCW 36.70A.130(3)(a)(iii)Protecting critical aquifer recharge areas reduces long-term risks of water contamination and supply shortages, which can prevent public health crises (e.g., nitrate poisoning, toxic algal blooms from nutrient loading) and costly emergency infrastructure responses — disproportionately benefiting vulnerable communities with limited water alternatives.
Public SafetyPeopleRef: RCW 36.70A.130(3)(a)(iii)While the bill may slightly constrain land supply, it also supports long-term housing affordability by preventing overdevelopment in sensitive zones and encouraging denser, more sustainable urban infill — though this benefit is indirect and may take decades to materialize.
HousingPeopleRef: RCW 36.70A.130(3)(a)(iii)Businesses that rely on reliable water supply (e.g., agriculture, food processing, tech cooling systems) benefit from stronger aquifer protections, reducing operational risk and long-term water-related compliance costs — though small farms and micro-businesses benefit more than large agribusinesses due to higher water sensitivity per dollar of output.
Business & EmploymentLean peopleRef: RCW 36.70A.130(3)(a)(iii)The bill provides clarity by affirming that previously designated critical aquifer recharge areas remain protected even if located within expanded urban growth areas — reducing regulatory ambiguity and potential legal challenges over land-use conflicts.
Local GovernmentRef: RCW 36.70A.130(3)(a)(iii)
Potential Concerns (5)
Local governments must conduct additional reviews and analyses when revising urban growth area boundaries, including ensuring no net increase in critical aquifer recharge areas and verifying that less than 15% of newly added land is critical area (excluding aquifer recharge areas). This increases administrative burden and may require technical studies or legal compliance work.
Local GovernmentRef: RCW 36.70A.130(3)(a)(iii)The bill reiterates and maintains existing deadlines for comprehensive plan reviews (every 10 years), but adds new procedural requirements (e.g., aquifer-specific analysis) that may increase local government costs for compliance, especially in small or resource-limited jurisdictions. Fiscal impact estimates are not provided, but state technical assistance may offset some costs.
Local GovernmentRef: RCW 36.70A.130(4)-(5)Developers and landowners may face additional constraints when proposing development in or near urban growth areas, particularly if their projects overlap with newly designated or re-evaluated critical aquifer recharge areas. This could delay permitting, increase study costs, or reduce developable land availability — though the impact is likely modest since most urban expansion occurs outside sensitive hydrologic zones.
Business & EmploymentRef: RCW 36.70A.130(3)(a)(iii)By limiting net expansion of urban growth areas and imposing strict thresholds on critical area inclusion, the bill may constrain land supply in high-demand regions, potentially exerting upward pressure on housing prices over time — though the bill explicitly prohibits net reductions in aquifer protection, not net reductions in developable land, so the housing impact is likely minimal.
HousingRef: RCW 36.70A.130(3)(a)(iii)The bill strengthens protection of critical aquifer recharge areas by preventing net reductions during urban expansion, supporting long-term groundwater sustainability and water quality — a public good with regional benefits across Washington’s water-stressed regions.
EnvironmentRef: RCW 36.70A.130(3)(a)(iii)
Who Is Most Affected
Local governments must conduct additional environmental reviews and potentially revise comprehensive plans to comply with new aquifer-protection thresholds, increasing administrative workload and potential legal exposure if standards are not met — though state technical assistance may help offset costs.
Developers and landowners may face delays or redesigns if their projects intersect newly designated or re-evaluated critical aquifer recharge areas, especially in fast-growing counties like Snohomish or Clark — though most impacts are incremental rather than prohibitive.
Residents in suburban and rural areas near urban growth boundaries may benefit from cleaner, more reliable water supplies and reduced risk of contamination, but could see slower housing supply growth in high-demand areas — net effect likely positive for long-term health, mixed for short-term affordability.
State agencies (Commerce and Ecology) will need to provide guidance, technical support, and possibly grant administration for aquifer mapping and compliance — increasing workload but aligning with existing statutory mandates and interagency cooperation.