The South Sangamon Water Commission says a boil order will last through the weekend for portions of Chatham.

A computer malfunctioned which caused the water pressure on a line to drop below acceptable levels. Homes and businesses between the ground storage tank near I-55 and the water treatment plant on Buckhart Rd. are affected. Samples will be pulled on Monday for testing.

Water to be used for consumption should be brought to a rolling boil for at least five minutes.

The village of Chatham has issued a boil order for a portion of Cottonwood Drive.

A press release indicates the order affects the street from Ash Street to Godfather’s Pizza at 21 Cottonwood.

It’s unclear what caused the order and it’s in effect until further notice. Water to be used for consumption should be brought to a rolling boil for at least five minutes.