Tours of Silicon Valley Advanced Water Purification Center

Location of Purification Center: 4190 Zanker Road, San Jose CA 95134

Innovation for Future Water Supply
The Silicon Valley Advanced Water Purification Center, the largest plant of its kind in northern California, is the focal point of the Santa Clara Valley Water District’s recycled water expansion.

The $72 million state-of-the-art facility receives secondary-treated effluent from the neighboring San José-Santa Clara Regional Wastewater Facility and purifies it to a very high quality using proven purification processes—microfiltration, reverse osmosis and ultraviolet disinfection.

The result is 8 million gallons a day of highly purified water that is expected to match California drinking water quality standards.

(Watch this short video on the Oct. 24, 2015 Community Open House)

The highly purified water produced at the new purification center is blended with the recycled water supply produced at the regional wastewater facility  to enhance its quality and expand its usage via the South Bay Water Recycling system.

Total dissolved solid (TDS) is a good water quality marker and it’s the key factor that non-potable recycled water users are concerned with. The highly purified water produced at the purification center has an average TDS concentration of around 40 milligrams per liter.

The addition of this purified water to recycled water reduces the recycled water TDS levels from the 2013 average of 750 ppm to the targeted 500 ppm, thus making a good product even better. This enhancement in water quality will allow for a wider use of recycled water for a variety of purposes, such as irrigation, commercial and industrial. For example, with lower TDS industrial customers would require less pre-treatment to avoid scaling, while landscape users would see reduction in leaching to remove excess salt from the soil. (Click thumbnail to enlarge chart)

TDS chartThe center will demonstrate proven technologies to produce highly purified water that can be used for a variety of purposes, including potentially expanding Silicon Valley’s future drinking water supplies.

The water district, which is the largest funder with $47.5 million, will own and operate the new facility. The City of San José has provided $11 million. The purification center has received $8.25 million from the federal American Recovery and Reinvestment Act and $5.25 million from the California Department of Water Resources.

Purifying water for a sustainable tomorrow.

Silicon Valley Advanced Water Purification Center partners

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