DATE: August 20, 2025
TO: Honorable Mayor and City Councilmembers
FROM: Water Utilities Department
TITLE: AMENDMENT 6 TO THE PROFESSIONAL SERVICES AGREEMENT WITH TRUSSELL TECHNOLOGIES FOR PURE WATER OCEANSIDE OPERATION OPTIMIZATION PLAN AND TRACER STUDY PROJECT
RECOMMENDATION
title
Staff recommends that the City Council approve Amendment 6 to the Professional Services Agreement with Trussell Technologies in the amount of $4,705,669, for a total contract amount of $8,102,648, for design and integration services to optimize both maintenance and operation of the infrastructure and continued support services for the Pure Water Oceanside Project; appropriate $1,100,000 from the Water Connection Fees Fund; and authorize the City Manager, or designee, to execute the amendment.
body
BACKGROUND AND ANALYSIS
Pure Water Oceanside is a multi-phased, multi-disciplinary indirect potable reuse (IPR) groundwater augmentation program initiated in 2016. The first phase was completed in January 2022 and included the construction of the Advanced Water Purification Facility (AWPF), conveyance infrastructure, injection wells, and monitoring wells. The program was designed to inject up to three million gallons per day of advanced treated water into the Mission Groundwater Basin and includes components for water treatment, conveyance, and recharge.
On April 8, 2020, the City Council approved a Professional Services Agreement (PSA) with Trussell Technologies (Trussell) for validation and regulatory support services for the Pure Water Oceanside Project (Project). The original scope included:
(1) Preparation of an Operations and Maintenance Plan
(2) Preparation of an Operation Optimization Plan (OOP)
(3) Startup and commissioning assistance
(4) Implementation of a tracer study in the Mission Groundwater Basin
(5) Staff training for advanced water treatment certification
In July 2021, staff administratively approved a no-cost amendment with Trussell Technologies to reduce its t...
Click here for full text