Recycled Water

Irrigating with Recycled Water Doing Our Part to Save Water

 Located in the north San Francisco Bay Area, the Town of Windsor is a recognized leader among communities nationwide in the use of recycled water for agricultural and urban irrigation.

The Town of Windsor is already a leader among communities nationwide in the use of recycled water for the irrigation of agricultural lands, recreational facilities, schools and residential front and back yards, which saves millions of gallons a year of precious fresh water for drinking and other human uses.

Windsor treats its wastewater to tertiary recycled water standards (also referred to as advanced water treatment) which is the highest level of treatment defined by the State. This level of treatment allows for unrestricted reuse in virtually all reclaimed water applications. The Town’s recycled water is monitored and tested daily to ensure that it consistently meets these high quality standards.

For more information, see our Recycled Water FAQs page.

Introducing the Town of Windsor Recycled Water Residential Fill Station Program

The Town of Windsor is expanding its recycled water program to offer recycled water through a residential fill station to local area residents, commercial businesses, and industries for irrigation of ornamental landscape and residential gardens. Recycled water will be made available to “self-haulers” at a Town-staffed fill station located in Keiser Park.

The Recycled Water Residential Fill Station Program will not only be a benefit to local area residents but will also provide an offset to potable (drinking) water use, which is even more significant in our current drought conditions.

Click HERE for more information!

Additional Recycled Water Uses

In addition to the Town Green, Wilson Ranch Soccer Park and the Windsor Golf Course, there are other places where recycled water irrigation is being used successfully.
Windsor Golf Club Course

Vintage Greens

The single-family homes in Windsor’s Vintage Greens subdivision are some of the first in Northern California to use recycled water to irrigate their front and back yards. The Vintage Greens housing community is sustainable, using the same amount of recycled water that each home contributes to the system.

If you are a resident in the Vintage Greens subdivision and would like to start recycled water service at your home, please complete the Recycled Water Application and contact the Town of Windsor Utility Billing Department by phone, 707-838-1004, or by e-mail at

Windsor High School
Windsor High School
is an exceptional example of excellence in water and resource management. About 40 acres of high school property are irrigated with highly treated disinfected recycled water, which also is used to flush the toilets in the school. This has resulted in a savings of about 1.4 million gallons of fresh water annually.

The use of recycled water along with other “green” practices helped the school and town share in the state's highest environmental honor for 2006, one of only 14 given out by then governor, Arnold Schwarzenegger. The Town's government and school district were singled out in the "sustainable community" category for pooling financial resources to help the environment and educate students to be good stewards of the environment.

Santa Rosa Junior College Shone Farm
The Town of Windsor’s recycled water is used to irrigate vineyards and pasture land around the Town. The Town also provides recycled water to Santa Rosa Junior College’s Shone Farm, which is located on the eastern outskirts of Windsor. The farm is a 365-acre diversified college facility that is a hands-on, outdoor field laboratory and learning environment. 

For more information on Windsor’s recycled water quality and how recycled water is produced you can review the Wastewater Treatment and Reclamation System Facilities.