This is a grand daddy water page... start here and explore your interests
dedicated to water quality professionals, has good glossary of terms, some special studies
Very cool site to get All California stream flow data, can localize on portions of SB county streams too. Realtime charts available from this link.
Dept of Fish and Game, check out the water links, (and the wildlife galleries too)
http://www.ucsc.edu/mb//Water.shed/water.html this link gives ordering info for good water testing kits (it's also part of a good model project for stream testing in Monterey area)
http://www.regis.berkeley.edu/grasslinks/salmongl.html Salmon projects, mapping links