A Flint home had tap water containing as much lead as the EPA limit for unleaded gasoline.
http://flintwaterstudy.org/2015/08/h...seholds-water/
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Virginia Tech collaborated with Ms. Walters’ on a follow-up sampling event. In this case we used bottles that allowed consumers to use water at a normal flow rate. We also collected 30 bottles from her home at low, medium and high flow rates. The drinking water samples all had extremely high lead levels between 200 ppb to 13,200 ppb (Figure 2).
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Since 1996, the EPA has prohibited the sale of gasoline for highway use containing more than 0.05 grams per gallon.
1 gallon = 3.78541 liters
0.05 grams per 3.78541 liters = 0.0132086088429 grams per liter = 13208.6 parts per billion