The UCCE Orange County and Los Angeles County 4-H2O Project, funded by a Toyota 4-H2O Community Project Grant, has the overarching goal to increase youth understanding of the linkage between urbanization and its impacts on the health of local streams, creeks, and the ocean. The measurable objectives will include reducing the presence of dry weather runoff in residential neighborhoods, reducing overall water use in home, and assessing the overall health of a local stream or creek by monitoring basic water quality parameters.