Of the 43 cities that were investigated, 33 engaged in water testing practices that clearly went against guidelines.
At least 33 cities across the United States have used water testing cheats that have underestimated toxic levels of lead, a Guardian investigation published Thursday found.
Conducted in wake of the lead water crisis in Flint, Michigan, thousands of documents requested by the Guardian reveal shockingly negligent practices when it comes to water testing across American cities.
Officials in Philadelphia and Chicago asked employees to test water safety in their own homes. The states of Michigan and New Hampshire told water departments to give themselves more time to test so that if lead levels were too high, they could re-test and remove the previous results.
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