It's likely that the water service is poly also. It's probably worth the the time to dig at the meter to see what color the service line is. The main reason I mention it - when you repair a poly water service it's common for the pipe to fail in a different weak location pretty soon after. If you have the means it's better to replace the service than to repair it multiple times. I've replaced several myself, but I don't do that type of work anymore.I know there is poly inside.