May 14, 2010, 8:05 PM
Millions of Californians have been exposed to harmful levels of nitrates in their water over the past 15 years. Many rely on private wells that have no public health oversight, while cities have spent millions on water treatment plants.
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May 13, 2010, 10:05 PM
Millions of Californians have been exposed to harmful levels of nitrates in their water over the past 15 years. Many rely on private wells that have no public health oversight, while cities have spent millions on water treatment plants.
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May 13, 2010, 9:50 PM
Find out how some families and schools live with contaminated water, what possible treatments could be and more about how water becomes contaminated.
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May 13, 2010, 9:50 PM
Farmers and state officials are exploring solutions to nitrate leaching in heavily impacted parts of the state, including solutions that go beyond paying millions of dollars for a treatment plant. But some proposals are more controversial than others.
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May 13, 2010, 9:35 PM
Learn more about the nitrogen cycle and how nitrates enter the water supply.
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