In Illinois – which has the most lead pipes per capita of any state, according to a 2023 study by the U.S. Environmental ...

The Illinois Commerce Commission on Thursday authorized Peoples Gas to restart a multibillion-dollar program to upgrade 1,100 miles of gas pipes beneath Chicago’s streets. But regulators trimmed ...

The Illinois Commerce Commission said the expansive project can't come at an unreasonable cost to customers, who have been upset about rising gas bills in recent years.