Nitrate-tainted drinking water plagues California farmworker towns, study shows

California officials have long known that pollution from the state’s $50 billion farming industry fouls drinking water sources in poor Latino communities where many toil as farmworkers. Now a review of state and federal data shows the problem is getting worse. More than 5 million people in California’s largely Latino communities have nitrate levels in their drinking water at or above federal standards, says an analysis by the Environmental Working Group released Wednesday. (No paywall)

In Minnesota, study finds drinking water tainted with nitrates

Hundreds of thousands of Minnesota residents are drinking water contaminated with elevated levels of nitrate, according to a new analysis from the Environmental Working Group. The state is rolling out new rules to regulate nitrogen fertilizer application and protect groundwater, but advocates say they may not go far enough to keep residents safe.