San Joaquin Valley
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San Joaquin Valley
EPA is working with other agencies and local communities to address the unique environmental challenges in the San Joaquin Valley, including some of the nation’s worst air quality, high rates of childhood asthma, and contaminated drinking water. The San Joaquin Valley is one of the world’s most productive agricultural regions and home to four million Californians.
![Map showing the general area of the San Joaquin Valey, between the San Francisco Bay Area nad the Sierra Nevada Mountains.](/sites/default/files/styles/medium/public/2013-06/sjv-map.jpg?itok=IXheVaC3)