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 General Rate Case (2025-27 Rates)

In January of 2025, the California Public Utilities Commission (CPUC) adopted a General Rate Case for Golden State Water Company (Golden State Water) that includes local infrastructure investments and new water rates for 2025, 2026, and 2027. The new rates went into effect February 1, 2025. 

These rates reflect Golden State Water’s long-term commitment to providing customers with high-quality water and reliable service by proactively investing in their community’s water supply and distribution systems. We never want customers to think twice about the quality of the water coming from their taps. 

To learn how your rates are invested in your community, visit the Capital Projects tab, and for frequently asked questions about the rate-making process, click here.

  • The average residential customer in the Simi Valley Customer Service Area with a 5/8 x 3/4” meter using 8,228 gallons (1,100 cubic feet or 11 Ccf) per month will see their 2024 monthly bill increase from $76.47 to $83.32, effective Feb. 1, 2025 (excluding any applicable surcharges). 
  • The average commercial customer in the Simi Valley Customer Service Area with a 2” meter using 36,652 gallons (4,900 cubic feet or 49 Ccf) per month will see their 2024 monthly bill increase from $428.74 to $526.03, effective Feb. 1, 2025 (excluding any applicable surcharges). 

Rates/Infrastructure Investments

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