Julia Scott

<p>Experts say that nitrate pollution is a major threat to California future water supply, while some cities already spend millions of dollars to treat nitrates in groundwater. Second in a two-part series produced in collaboration with California Watch and KQED Radio.</p><p><a href="http://www.californiawatch.org/remedies-nitrate-contamination-anything-…;

<p>The water supply of more than two million Californians has been exposed to harmful levels of nitrates over the past 15 years – a time marked by lax regulatory efforts to contain the colorless and odorless contaminant. First in a two-part series produced in collaboration with California Watch and KQED Radio.</p><p><a href="http://www.californiawatch.org/nitrate-contamination-spreading-californ…;