Following the boil order, the village recommends customers flush the building water lines and clean faucet screens and purge all water-using fixtures and appliances of standing water and ice, such as refrigerator ice makers or coffee makers.
The latest tests showed the water free of fecal contamination after earlier results found the bacteria. Officials said Tuesday the bacteria may have "worked its way out" and continued to test to be sure until Wednesday.
The order came Monday as village officials said the fecal coliform bacteria could make residents sick, especially those with weakened immune systems.
Village officials have not said exactly how the bacteria contaminated the water.The health department said the water was always safe for bathing.
"It's a bit disturbing to be honest with you. Something like this hasn't happened here before, certainly want to know why," said Dave Schaefer, Deerfield resident.
Deerfield Public Works' office says it gets water from a treatment facility in Highland Park, but Highland Park officials say their water is fine.