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What is the Groundwater Utilization Project?

Thousand Oaks water is currently 100% reliant on the imported water from the State Water Project. The City has conducted several studies to evaluate the potential of developing a supplemental supply of potable water for the community. According to these studies, groundwater reuse from an existing well located at Los Robles golf course can help provide a local potable water source to help reduce the City’s reliance on imported water, especially during drought conditions. The Groundwater Utilization Project, also known as the Los Robles Water Reuse Project, consists of groundwater wellhead improvements and associated infrastructure for development of a local source of potable water.

Why is the City doing this?

The cost of imported water continues to increase. At the same time, reliability of this source is not as certain due to drought and environmental challenges. A local groundwater source would be more reliable and cost effective than imported water.

When is the City doing this work and how long will it take?

Prior to planning for the full-scale design and construction, additional testing may be needed to further evaluate the groundwater basin's characteristics and well's sustainable yield.

What if I still have questions?

For more information, please contact Ayda Forouzan, the City’s project manager at