Stormwater funding systems face rising pressure to deliver water quality, supply, and community benefits together. Climate variability increases the need for projects that manage runoff while supporting resilience and sustainability. Discover how Los Angeles County’s Safe, Clean Water Program links regional investment, technical review, and watershed planning to international benchmarks.

By Robert C. Brears

Funding Architecture

Stormwater investment systems convert dedicated revenue into planned portfolios of projects, studies, and technical support. A clear funding architecture helps public agencies match resources with water quality, water supply, and community outcomes. Program design often separates capital delivery from technical assistance and scientific research. This structure supports resilience because complex projects need design funding, feasibility support, and evidence-based evaluation before construction.

Eligibility Controls

Eligibility controls protect public funds by defining who can apply and what costs qualify. Stormwater systems usually require project proponents to demonstrate public benefits, technical feasibility, and consistency with approved water management plans. Eligible costs can include design, permitting, environmental review, construction, land acquisition, monitoring, and operations. Ineligible costs often include fines, litigation expenses, and activities outside the program’s statutory purpose.

Review And Scoring

Review and scoring systems help compare different project types through common criteria. These criteria can assess pollutant reduction, stormwater capture, local supply benefits, nature-based design, community investment, and leveraged funding. A minimum threshold score creates a baseline for funding consideration. Expert review also reduces the risk that incomplete feasibility work receives capital funding too early.

Adaptive Management

Adaptive management allows stormwater investment systems to adjust as evidence, priorities, and project performance change. Reporting requirements help committees track scope, schedule, budget, and expected benefits. Scientific studies can improve methods for monitoring, modeling, and prioritizing future investments. This feedback loop supports sustainability because funding decisions can respond to watershed needs instead of fixed assumptions.

Case Study: Safe, Clean Water Program

The Safe, Clean Water Program in Los Angeles County provides dedicated funding to increase regional water supply, improve water quality, and enhance communities. The Regional Program receives 50 percent of program revenue. It operates under Los Angeles County Flood Control District Code Chapters 16 and 18, which define eligible expenditures, governance, funding allocations, reporting, and compliance duties.

The Regional Program includes three subprograms. Infrastructure Program activities receive not less than 85 percent of Regional Program funds. The Technical Resources Program receives not more than 10 percent. The Scientific Studies Program receives not more than 5 percent. Infrastructure Program projects need a completed feasibility study and inclusion in an approved water management plan. They must also meet a 60-point threshold score before Watershed Area Steering Committees can consider them for funding.

Implementation relies on several review and compliance mechanisms. Nine Watershed Area Steering Committees review proposals and develop annual Stormwater Investment Plans. A Scoring Committee assigns final scores using water quality, water supply, community investment, nature-based solutions, and support criteria. The Regional Oversight Committee reviews plans for alignment with program goals before Board of Supervisors action. Transfer Agreements then govern scope, schedule, budget, reporting, and fund disbursement.

The program also includes flexibility and accountability tools. Continuing projects may request modifications through Project Modification Requests. Project developers can carry uncommitted funds for up to five years, with a possible 12-month extension when justified. Quarterly and annual reports support oversight. Independent audits verify compliance after project completion. These mechanisms help align stormwater capture, pollution reduction, local supply, and community benefits with climate resilience outcomes.

Take-Out

Effective stormwater investment systems combine dedicated funding, technical screening, adaptive management, and enforceable reporting. This structure helps public agencies connect infrastructure delivery with measurable resilience and sustainability outcomes.