A Peoples Gas pipe replacement program, which could have doubled gas bills, can continue Thursday after the Illinois Commerce Commission (ICC) wrapped up a year-long investigation into the project. However,

The utility will resume work on its long-delayed, over-budget program, but the Illinois Commerce Commission has ordered it to prioritize the highest-risk pipes and to bring in an outside monitor for yearly reports.

An advocate says if the Illinois Commerce Commission approves a project that replaces Peoples Gas' entire system of underground gas mains in the city, the rates could be catastrophic.