An average of 10 million gallons per day of wastewater flows through the Ryder Street treatment plant on its way to San Francisco Bay. During large storms, the number can hit over 60 million gallons. What does that mean? Each year we treat about 4 billion gallons of wastewater so that your health and property are protected, and the Bay is safe.

We provide this service for more than 120,000 residents in the greater Vallejo area. Every day, wastewater from showers, toilets, sinks, garbage disposals, dishwashers, and washing machines flows through sewer pipes to the District's treatment plant. Our job is to remove all the solids and suspended sediment from the wastewater and then disinfect it so that it is safe.

It is important to know that treatment plants are designed to remove human waste, toilet paper, and food particles from wastewater. Treatment plants are not able to completely remove contaminants from medicine, paint, oil, and other pollutants. These need to be recycled, put in the garbage, or disposed of at household hazardous waste facilities where appropriate.

Treatment Process

Have you ever wondered how wastewater is treated in Vallejo? Watch our seven minute video to find out!