An Associated Press analysis of EPA data found that nearly 1,400 water systems serving 3.6 million Americans exceeded the federal lead standard at least once between the start of 2013 and last September.
…and these numbers are from the 20% of Drinking Water system that don’t cheat on their Lead & Copper testing… (Hannibal, Missouri!!!)
Most U.S. cities stopped installing lead pipes in the 1930s to carry water from main lines under the streets and into homes. But a survey by the American Water Works Association found that 6.5 million of these pipes are still in use.
Some researchers question whether chemical treatment and routine testing for lead in the water are enough, arguing that the only way to remove the threat is to replace the plumbing. The cost, though, could be huge.