Rates

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As a regulated utility, every three years Golden State Water’s rates are determined by the California Public Utilities Commission (CPUC) through a General Rate Case (GRC) to ensure customers receive a fair rate for reliable, quality water service. New rates allow for investments to avoid the costly and sometimes dangerous effects of deferring maintenance or delaying the replacement of aging infrastructure.

2023 GRC (2025 Rates)

As required by the CPUC every three years, in August of 2023, Golden State Water Company filed its 2023 General Rate Case (GRC) with the California Public Utilities Commission. This rate plan proposes local infrastructure investments and water rates for the years 2025, 2026 and 2027. Any adjustments to current rates will not go into effect until January 2025, at the earliest. Click here to learn more. Learn more about the rate-making process and localized information on new rates and investments in the 2025-27 Proposed Investments/Rates Fact Sheet.

  • The average residential customer in the Los Osos Customer Service Area with a 5/8 x 3/4” meter using 3,740 gallons (500 cubic feet or 5 Ccf) per month will see their 2023 monthly bill increase from $88.08 to $108.75 in 2025, at the earliest (excluding any applicable surcharges). 
  • The average commercial customer in the Los Osos Customer Service Area with a 5/8 x 3/4” meter using 16,456 gallons (2,200 cubic feet or 22 Ccf) per month will see their 2023 monthly bill increase from $312.21 to $386.79 in 2025, at the earliest (excluding any applicable surcharges). 

Rates/Infrastructure Investments

Tariff Sheets

Financial Assistance

Maps