Unless properly managed, this increased stormwater runoff creates flooding, erosion and water quality problems. Why is stormwater runoff pollution a problem? Many people do not realize that the ...

Components in the minor system are sized to carry runoff generated by the more frequent, short-duration storm events. The major drainage system includes natural streams, channels, ponds, lakes, ...

As winter storm season starts in Berkeley, here's how to report storm drainage problems and help tackle them yourself.