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Sweetwater Authority hears Prop. 218 legal briefing and 2026 rate‑study approach
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Summary
Legal counsel and consultants briefed the governing board on Proposition 218 case law and a high‑level 2026 water rate cost‑of‑service study; consultants recommend a status‑quo baseline but flagged potential design changes and funding for the authority’s affordability program.
The Sweetwater Authority governing board on March 25 received a legal overview of how Proposition 218 affects water‑rate design and a presentation of the authority’s 2026 cost‑of‑service rate study.
Dean, outside counsel from BB&K, summarized recent appellate rulings and their implications for tiered rates under Proposition 218, saying courts require agencies to demonstrate that higher tiers reflect proportional cost rather than merely presenting overall costs and allocations. He cited Capistrano as supporting tiers, contrasted earlier cases that found insufficient proportionality evidence, and said the 2025 Dreher decision takes a practical approach allowing tiers when agencies show how supply and infrastructure costs are allocated. Dean noted the California Supreme Court may issue a final ruling on the appellate conflicts in 2027.
Sarah Mears, chief operating officer of MBS, outlined the rate‑study methodology: a five‑year financial plan (operating, capital, debt service, reserves), a cost‑of‑service analysis that functionalizes costs (capacity, commodity, customer and fire protection), and rate‑design options including fixed vs. variable revenue shares and tier structures. MBS said the current baseline is to retain the existing rate design unless the cost model or legal guidance recommends changes and that the board could consider alternatives such as simplifying tiers, shifting fixed/variable balances, or continuing the water affordability program funded by cell‑tower lease revenues.
Directors pressed for detail about how topographic pressure‑zone costs would be treated under Prop. 218 and whether low‑income subsidies are permissible. Dean said pressure zones have not been directly litigated and that courts typically examine system‑level infrastructure allocations; he also cautioned that rate‑funded low‑income subsidies can be problematic under Dreher unless an external funding source supports the subsidy. Staff and consultants said bench testing and further modeling will inform any recommended design changes, and the board will review a draft study before notices and the required Prop. 218 public‑hearing process.
This item was presented for information; no board action was taken. The board directed staff to proceed with the study and return with draft findings and legal guidance ahead of any rate notice and public hearing.
