Dug up the sewer line in front of house and found a 3 inch sewer line, tying into a 4 inch sewer line. Cut out the section of pipe and pipe in with a new clean out and fernco to connect the sewer back together. Advised customer that the main water supply line that runs next to the sewer is leaking. The line transitions from copper to galvanized pipe. The waterline from the house to the water meter needs to be replaced.