lawrence February 26, 2020 12:34 pm Columbia Gas Facing Charges for 2018 Merrimack Valley Explosions Columbia Gas, the utility behind the deadly 2018 Merrimack Valley gas explosions, will pay a $53 million fine and be sold by its parent company, NiSource. US & World Videos 1:41 Karen Read trial Day 7: Canton police officers continue to testify 1:57 Tensions escalate as protests across Mass. colleges continue 0:21 Man arrested in Centerville stabbing that sent victim to hospital 20:21 Karen Read trial: Defense calls Canton police lieutenant's credibility into question 1:59 Car crashes over wall in Westford