Hill Canyon Wastewater Treatment Plant

Nestled on a 60-acre site in Camarillo, California, the Hill Canyon Wastewater Treatment Plant (HCTP) is a 14 million gallons per day (MGD) facility serving the City of Thousand Oaks. Wastewater is treated to an advanced tertiary level at the facility, making it suitable for unrestricted reuse.

The City of Thousand Oaks purchased the HCTP in 1966 from the Conejo Valley Sanitary District. Since that date, the City has completed two major expansions and several upgrades, including a cogeneration system, solar system, new ammonia system, and various other projects. Still, portions of the HCTP exceeded 50 years of age, and even new parts exceeded 10 years of age. The City began to increase the number of rehabilitation and upgrade projects on an as-needed basis, but without a comprehensive master plan. Understanding the benefits of planning for the upkeep and operation of this significant asset, the City elected to undertake development of the HCTP Master Plan.

What We Did

Gannett Fleming assembled a multidisciplinary team of professionals for the project, including members of the firm’s Water, Facilities, and Power business lines. Our Water experts conducted biological modeling and evaluated treatment alternatives for both liquid and solids streams. They also evaluated water resource alternatives and reuse options. The firm’s Facilities team, in partnership with HCTP treatment and operations staff, conducted a condition assessment of the plant, and our Power Services team led a renewable energy evaluation, which included exploring the implementation of a power management system and various renewable sources for the plant.

Based on the findings of these assessments and investigations, Gannett Fleming developed the HCTP Master Plan to help identify short- and long-term improvements needed during the next 10 years. It details, prioritizes, and assigns budgets to these improvements to ensure a proactive capital program that will provide reliable service to the community for the future.

Key Features

  • Five-year capital improvement plan prioritizes upgrades, replacements, and new projects and outlines budgeting needs.
  • Investigation of ways to optimize processes establishes a roadmap for future operational efficiencies.
  • Project planning prepares the facility to accommodate new innovations and improved technologies.

Outcomes

  • Improves reliability of the Hill Canyon Treatment Plant through system redundancy.
  • Optimizes the use of renewable energy.
  • Reduces future maintenance or replacement needs, resulting in cost savings.

CLIENT

City of Thousand Oaks

LOCATION

Camarillo, Calif.

ROLE

Master Planning, CIP Development, Modeling

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