MWD's Refusal to Disclose Rate Model Forces Legal Action

The Metropolitan Water District of Southern California, which supplies water to a service area covering more than 19 million people, has refused to disclose its rate model to the public. MWD attorneys admitted during Superior Court proceedings that its rate model is a Microsoft Excel spreadsheet that contains “everything that demonstrates the rate setting and all the details in the numbers that we engaged in to arrive at our rates …” These rates are ultimately borne by the public, yet MWD is claiming that the way it allocates its costs to its water rates is proprietary and is a secret.

The San Diego County Water Authority filed legal action on August 24, 2016 to force MWD to disclose a fully functioning rate model so that the public can understand how MWD sets its rates and charges. The Water Authority believes that MWD is withholding information that is public information under state law. 

These documents are not intended to be a complete list of all the official court documents in this case. For case documents in San Francisco Superior Court, click here


Court documents:


*Not yet submitted to court. Submitted to MWD during rate setting process.