The San Lorenzo Valley Water District (SLVWD) will flush its water mains this spring, an annual program that maintains water pipelines and complies with requirements set by the California Department of Water Resources Control Board.

System flushing will occur on weekdays from March 6 to May 25 at various locations throughout the District during regular business hours (9 a.m. to 4 p.m.).

Yearly water main flushing removes iron and manganese deposits that accumulate in the District’s water distribution system. Water main flushing is the process of cleaning, also referred to as, “scouring” the inside of the pipes by opening hydrants and releasing water at the speed of up to 5 feet per second to remove deposits built up inside the mains. Consistent and periodic flushing improves water quality, maintains capacity of pipes and minimizes episodes of discolored water caused by iron and manganese. Iron and manganese do not pose a health threat to customers and are common minerals found in groundwater wells throughout the nation, though they affect the aesthetic quality of water.

Water is safe to drink during flushing. Customers may experience periods of low water pressure and/or interruption of water service. Please reduce water usage during this period and refrain from doing laundry, as the water may be discolored for a short time. This discolored water can sometimes cause staining of clothes and plumbing fixtures.

Please visit the District’s website to see the complete flushing schedule and frequently asked questions. Call the District at (831) 338-2153 with questions.



The San Lorenzo Valley Water District is located in the mountains of northern Santa Cruz County. The district serves more than 7,500 metered connections. Established in 1941, the district supplies water to the communities of Boulder Creek, Brookdale, Ben Lomond, Zayante, Quail Hollow, Scotts Valley, Whispering Pines, Manana Woods, and Felton. For more information, visit or follow the District on Facebook, Instagram, Twitter and Nextdoor.