FLINT (WJRT) - (11/12/15) - The controversy surrounding the water emergency in Flint is unraveling.
How lead testing is being done in Flint is now being questioned after the city admits some discrepancies were found in recent water testing.
The city admitted that some water samples they tested for lead weren't from homes with lead pipes, even though they reported to the state they were.
The Department of Environmental Quality requires cities across the state to test their water for lead every six months.
In the last round of testing in Flint, 200 water samples were sent to residents at random, even though one of the DEQ's requirements is that samples are taken from homes most at risk for lead exposure.
The city got back 68 samples from residents. They can only confirm eight of the 68 were taken from homes with lead pipe service lines.
The problem is, they reported to the state that all of their samples were from those homes, when in reality, they don't know what material the service lines were made of in 60 samples.
That could skew the lead levels, showing they are lower than they actually are city-wide.
In response to the confusion, a city of Flint spokesperson says they have to make "educated assumptions" when testing based on the fact that most service lines are lead or have lead parts.
They've been doing it this way for decades.
A spokesperson with the city of Flint tells ABC12 it's because there is no real record of what pipes are where in the city and what they're made of.
Back in 1992, cities across the country were required to take inventory of their water systems. The city says Flint never did that.
The spokesperson added that it was never their intent to misreport their findings.