Lead contamination reportedly is a problem in dozens of the nation's drinking-water systems. The Washington Post examined 65 of the three-thousand largest utilities and says it found a number of them are manipulating test results, violating federal law and putting millions of Americans at risk. The Post cited problems in New York City; Boston; Philadelphia; Providence, Rhode Island; and Portland, Oregon. The newspaper says it has identified 274 water systems, serving more than eleven million people, that had reported unsafe lead levels since 2000.

But the Environmental Protection Agency says only four large water systems, serving a million people, had unsafe lead levels in the past three years: Washington, DC; St. Paul, Minnesota; Port St. Lucie, Florida, and Ridgewood, New Jersey.