VINCENNES, Ind. (We Are Knox County) - A boil order is in effect for customers of Vincennes Water Utilities and Knox County Water. According to the City of Vincennes, the order was issued “out of an abundance of caution” following a "lab error". A public notice found on the Vincennes Water Utilities' website states that E. coli  was detected in routine water samples collected April 15. The notice says among the six samples the water system exceeded federal standards, and add