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File #: 2025-4613    Version: 1 Name:
Type: Non-Consent Status: Final
File created: 11/12/2025 In control: STEERING COMMITTEE
On agenda: 11/19/2025 Final action:
Title: RATE SETTING PROCESS
Sponsors: Wally Ritchie
Attachments: 1. Agenda Report
Related files: 2025-4572
FROM: Robert Thompson, General Manager
Originator: Wally Ritchie, Director of Finance

SUBJECT:

title
RATE SETTING PROCESS
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GENERAL MANAGER'S RECOMMENDATION

recommendation
RECOMMENDATION:

Approve initiating the rate setting process a year early to allow Orange County Sanitation District to assess rates across the service area including new customer bases.
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BACKGROUND

Orange County Sanitation District (OC San) completes a rate study every five years to determine customers' fair and equitable share of collection, treatment, and disposal costs, develop an accurate rate model, and establish a new five-year rate schedule which ensures full cost recovery and provides support for the Proposition 218 notifications. In March 2023, the Board of Directors adopted service fees for fiscal years 2023-2024 through 2027-2028.

OC San and Irvine Ranch Water District have been collaborating on the restatement of prior agreements and the transfer of flows that will effectively adjust the customer base of both agencies. The new customers that will have their regional sewer service provided directly by OC San were not part of the previous Proposition 218 process, therefore OC San cannot assess service fees directly on those properties which are anticipated to transfer to OC San on January 1, 2027.

RELEVANT STANDARDS

* Stable rates, no large unforeseen rate increases

PROBLEM

The new direct customers of OC San cannot be assessed sewer service fees until a new rate setting and Proposition 218 process has been completed and adopted.

PROPOSED SOLUTION

Initiate the rate setting process a year earlier than anticipated to be able to assess new customer service fees effective July 1, 2027.

TIMING CONCERNS

The rate setting process needs to commence in December 2025 to ensure new fees can be adopted for all customers and be effective on July 1, 2027.

RAMIFICATIONS OF NOT TAKING ACTION

OC San will not be collecting service fees from the new direct customers...

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