Most Popular Links
- Art and Crafts Hazards List
- Cal/Ecotox Database
- Decisions Pending and Opportunities for Public Participation
- Hot Spots
- Press Releases
- Proposition 65 List of Chemicals
- Public Health Goals
- Public Records Act Requests
- Soil Screening Values
- Toxicity Criteria Database
Aquatic Resources & Watersheds
A watershed is that area of land that drains into a common point in a waterway, as illustrated in the figure below. Watershed can be as small as 1 square mile or as large as hundreds of square miles. Human activities have significant, often unrecognized affects on a watershed. Operations such as farming, urbanization and resource extraction have degraded the habitat and water quality of the majority of waterways in California.
To help improve this situation, the Ecotoxicology Program works with state, local, and non-governmental partners to develop informational literature, tools, and technical resources to promote a better characterization and understanding of the link between land use and aquatic resources protection.
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