(State House News Service) -- The commuter rail is expected to be back to running full service Monday after a hellish winter weeks of numerous delays that frustrated riders.

Commuter rail service was hampered this winter due to record breaking snow; Boston accumulated more than eight feet. The extreme winter conditions wreaked havoc on the transit infrastructure. It knocked many commuter rail locomotives out of commission this winter. Earlier this month, Keolis, the commuter rail’s operator only had 44 locomotives in operation, well below its goal of having 60 active locomotives.

Gov. Charlie Baker said last week state officials will have an opportunity to sit down and negotiate penalties with Keolis.

"There will be appropriate penalties," the governor said.