Welcome to My Water Quality
Safe drinking water depends on a variety of chemical and biological factors regulated by a number of local, state, and federal agencies. Learn more >>
Swimming safety of our waters is linked to the levels of pathogens that have the potential to cause disease. Learn more >>
Aquatic organisms are able to accumulate certain pollutants from the water in which they live, sometimes reaching levels that could harm consumers.
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The health of fish and other aquatic organisms and communities depends on the chemical, physical, and biological quality of the waters in which they live. Learn more >>
Harmful algal blooms can make water unsafe for swimming and other recreational activities. The toxins they produce can harm pets, livestock, and people. Learn more >>
A number of regional monitoring programs throughout California collect and display water quality and aquatic ecosystem health data. Learn more >>
The California Wetlands Portal includes interactive graphics, maps and monitoring data that focus on the location, extent and health of the state’s wetland resources. Learn more >>
The goal of the California Estuaries Portal is to provide data, information, and tools for discovery and management of California's estuaries. The first step in building the portal is focused on California's largest estuary, the San Francisco Estuary.
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This web portal contains data for some important indicators of stream health which have been the subject of recent studies. The long-term goal for this portal is to expand beyond this initial set of indicators in order to present information concerning a broad suite of chemical, biological, and physical indicators. Learn more >>