About Flows To Bay, The San Mateo Countywide Water Pollution Prevention Program
20 Cities. One County. A Team Effort. Water pollution degrades surface waters, making them unsafe for drinking, fishing, swimming, and other activities. The San Mateo Countywide Water Pollution Prevention Program (SMCWPPP) was established in 1990 to reduce the pollution carried by stormwater into local creeks, the San Francisco Bay, and the Pacific Ocean.