Advice Letters
Advice letters are informal requests to the California Public Utilities Commission (CPUC) seeking approval or authorization. Both pending and approved advice letters are available online.
Current Advice Letters
Regulatory Information
Regulatory information includes guidelines, rules, and filings that govern Cal Water’s operations, tariffs, rate structures, and compliance with state laws.
Operating Rules
Customer rights, service terms, and standards are outlined in Cal Water’s Operating Rules to ensure clear guidelines and expectations.
Discover Operating Rules
Preliminary Statements
General operating procedures and accounting practices are defined in Cal Water’s Preliminary Statements for consistent operations.
See Preliminary Statements
Disconnection of Water Service Data (SB998)
Annual service disconnection reports due to nonpayment are published by Cal Water to comply with SB998, promoting transparency.
Learn More
Infrastructure Improvement Plan
Cal Water’s Infrastructure Improvement Plan includes projects aimed at modernizing facilities, replacing aging pipelines, and improving overall system efficiency to meet current and future demands.
See Our Infrastructure Improvement Plan
Questions About Rates
If you have questions about your water rates or how they are set, please contact Customer Service.