Sonoma Water, the county agency that provides drinking water to 600,000 residents in the North Bay, cautions all water uses about how to avoid contaminating our water supply. Ensuring the safety of ...

Backflow-prevention assembly testing is required by law. The Clark Public Utilities Water Utility urges its customers to have their backflow-prevention devices tested in the spring, just before ...

Backflow preventers have been used for years and most buildings constructed in Sioux Falls since the late 1970s should have them. But only recently did the city begin requiring backflow that be ...