Lawyer says call proves contractor wasn’t at fault for Hyde Park explosion

A lawyer for the contactor blamed for Wednesday’s gas explosion that leveled a house in Hyde Park said yesterday that a recorded phone call proves his client followed safety procedures and casts blame on NStar for failing to mark all the gas lines in the area.No one was injured in the blast, which occurred about 8:45 a.m. and shattered windows and cracked walls in nearby houses.Andrew Daniels, a