Sustainable water management often requires creative solutions that benefit both agriculture and the environment. The Ponds Project in coastal San Mateo and Northern Santa Cruz counties demonstrates how collaborative water conservation strategies can help farmers secure reliable irrigation supplies while protecting critical fish habitat for coho salmon and steelhead populations.
The primary goal of the project was to encourage the voluntary restoration of summer streamflows by helping farmers develop off-stream water storage ponds. These ponds are filled during the wet winter season when streamflows are naturally higher and water is more abundant. The stored water can then be used later during the dry summer months for irrigation, reducing the need to divert water directly from streams during critical low-flow periods.
This approach provides important environmental benefits. During summer, streamflow levels are especially important for the survival of sensitive fish species such as coho salmon and steelhead. Reducing summer water diversions helps maintain healthier aquatic habitats, cooler water temperatures, and improved migration conditions for fish populations already facing significant environmental pressures.
Farmers also benefit from the project by gaining access to a more reliable and flexible water supply during the growing season. Stored winter water can improve drought resilience and reduce uncertainty associated with seasonal water availability.
An important component of the Ponds Project involved developing permitting and funding frameworks that would make these systems more accessible for agricultural producers. In some cases, portions of existing summer water diversion rights were retired or transferred under California Water Code Section 1707 to permanently support fisheries habitat and environmental flows.
The project highlights how cooperative conservation efforts can create solutions that strengthen both agricultural sustainability and ecosystem health. By capturing excess winter water and reducing summer stream diversions, off-stream storage ponds provide a practical example of balanced water stewardship.
Healthy fisheries and resilient farms can work together when thoughtful water management strategies are put into place.