SB 1125 amends Health and Safety Code §116772 to add a recurring statewide drinking water needs assessment produced by the State Water Resources Control Board. The assessment must include an analysis of funds necessary to make water service affordable for customers of small community water systems, and that funding analysis must be refreshed on a multi-year cycle.
The change aims to give the board a regular, data-driven picture of financing shortfalls and affordability gaps that can inform allocation from the Safe and Affordable Drinking Water Fund and related policy decisions affecting small systems and their customers.
At a Glance
What It Does
Directs the State Water Resources Control Board to prepare a public, recurring needs assessment that synthesizes available monitoring and planning data and quantifies financing needs and affordability shortfalls for small community water systems. The assessment process must involve the board's standing advisory group and other stakeholders.
Who It Affects
Small community water systems and their ratepayers, the State Water Resources Control Board staff who must produce and maintain the assessment, county health officers and local agencies that supply water-quality data, and agencies that allocate Safe and Affordable Drinking Water Fund dollars.
Why It Matters
It creates a predictable, statewide analytic input for budgeting and grant prioritization, moving affordability from an episodic concern to a recurring metric the state must measure and update. That shift changes how funding needs are identified and could reshape program priorities for small systems.
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What This Bill Actually Does
The statute already requires the State Water Resources Control Board to maintain public maps of aquifers at high risk for contamination and to receive electronic water-quality test results from local health agencies. SB 1125 builds on that data infrastructure by charging the board with producing a statewide drinking water needs assessment on a recurring basis.
Rather than a one-off study, the idea is to turn existing mapping and monitoring inputs into a standing analytic product the board will use to understand where the largest needs and affordability shortfalls are.
The bill requires the board to consult its advisory group and other stakeholders when developing the assessment, which creates an explicit procedural route for local agencies, small-system operators, community advocates, and fund administrators to influence methodology and priorities. The assessment is intended to be public and to draw on the board’s existing data collections — including lab results submitted by local health officers and the high-risk aquifer map — so that its conclusions are grounded in the state’s operational monitoring system.A central element of the mandate is an analysis that quantifies how much funding is needed to make water service affordable for customers served by smaller community systems.
The statute ties that analysis to periodic refreshes on a multi-year schedule, so the board must revisit assumptions and update cost estimates regularly. The law does not prescribe a single affordability metric or subsidy design; instead it creates an obligation to measure and report the funding gap, leaving choices about methodology and program responses to the board and its advisors.Practically, the assessment will feed the Safe and Affordable Drinking Water Fund planning process: the board already bases its fund expenditure plan on its needs assessment, so a recurring, standardized assessment will change how the board justifies allocations and sets priorities.
For operators and local officials, the assessment should produce clearer signals about eligibility, project prioritization, and the scale of subsidies or investments required to bring systems into compliance and affordable service levels.
The Five Things You Need to Know
The board must develop the needs assessment in consultation with the advisory group created under Health & Safety Code §116768.5.
The assessment is required to use existing data streams, including high-risk aquifer mapping and laboratory test results that local agencies submit to the board.
The statute makes the affordability-focused funding analysis a standing deliverable that the board must refresh on a multi-year schedule.
The bill does not define ‘affordable’ or prescribe a specific methodology for calculating subsidies or per-customer aid.
The assessment is explicitly tied to the board’s fund-expenditure planning process and will inform allocation decisions from the Safe and Affordable Drinking Water Fund.
Section-by-Section Breakdown
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High-risk aquifer mapping and public access
This subsection continues the board’s obligation to map aquifers at high risk of contamination and to publish both the maps and the underlying data online in a manner consistent with California information-practices law. Practically, the map and its data are foundation material for any statewide needs assessment because they point to areas where contamination, monitoring, and corrective investments are likeliest to drive funding needs.
Laboratory results and electronic reporting to the board
This subsection maintains and expands the electronic data flow from local health officers and other agencies to the board: accredited laboratory results for small state water systems and domestic wells must be submitted, and, since the statute requires direct electronic submission, those results become standardized inputs the board can use for statewide analysis. For the assessment, that means the board will be working with near‑real‑time monitoring data rather than relying solely on ad hoc surveys.
Recurring statewide drinking water needs assessment
This new paragraph directs the board to develop a statewide drinking water needs assessment on a recurring basis and to work with its statutory advisory group and appropriate stakeholders in doing so. The provision institutionalizes stakeholder consultation and makes the assessment an official, repeatable product of the board rather than an occasional report.
Requirement for an affordability funding analysis
This paragraph obliges the board to include within the needs assessment a specific analysis estimating the funds necessary to make water service affordable for customers of certain community systems. By requiring a monetary estimate of affordability needs, the statute forces translation of technical infrastructure and operations deficiencies into budgetary terms that decisionmakers and fund managers can act upon.
Multi‑year updates of the funding analysis
This paragraph requires the board to update the affordability funding analysis on a multi-year cycle, which locks in a schedule for reassessment of costs, priorities, and assumptions. That cadence creates opportunities to track trends, evaluate whether prior funding reduced gaps, and refine methodologies over time.
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Who Benefits
- Customers of small community water systems: The bill forces the state to quantify affordability gaps and create a clearer case for subsidies or targeted funding that could lower bills or prevent service shutoffs.
- State Water Resources Control Board staff and planners: A recurring, standardized assessment gives staff a durable analytic product to justify funding allocations and to track progress over time.
- Grant and program administrators for the Safe and Affordable Drinking Water Fund: The assessment produces the budgetary estimates they need to size programs and prioritize projects across regions and system types.
Who Bears the Cost
- Small community water systems and local operators: They may face increased administrative work to supply data, participate in stakeholder processes, and support the board’s assessments; some systems could also be required to adopt plans or match funding as a condition of aid.
- State Water Resources Control Board resources: Preparing, publishing, and periodically updating a statewide needs assessment and a detailed affordability analysis will divert staff time and require technical capacity that the board must fund.
- Local public health agencies and accredited labs: The statute’s reliance on electronic laboratory reporting and timely data submission increases their reporting obligations and may require upgrades to data systems.
Key Issues
The Core Tension
The bill resolves the need for regular, state-level measurement of drinking water financing shortfalls while leaving the critical policy choices — how to define affordability and which funding responses to prefer — to administrative processes; that trade-off gives flexibility but risks producing an influential assessment whose conclusions reflect contested methodological choices rather than settled policy.
SB 1125 shifts the state toward systematic measurement of needs and affordability, but it leaves important methodological choices to the board and its advisors. The statute does not set an affordability threshold, choose a cost‑burden metric, or require a uniform subsidy design; those omissions mean the most consequential decisions — which customers qualify as ‘unaffordable,’ how to count capital versus operating costs, and whether to prioritize rate relief or infrastructure grants — will be made in rulemaking or internal policy guidance rather than in statute.
Operationally, the assessment’s usefulness will hinge on data quality and comparability. The board will rely on mapping and lab-reporting streams that vary in frequency and coverage.
Under-resourced local agencies and very small systems may produce patchy data, which raises the risk that the assessment will understate needs in the least-resourced communities. Finally, producing a robust, defensible funding estimate requires clear assumptions about project lifespans, cost escalation, and willingness-to-pay — assumptions that will drive political choices about how much state money is ‘enough.’
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