NO no fix-it chemical. You are risking your health and the contaimination of city supply. You have to dig it up. Up in Canada you are probably deep in the ground.You have to wiegh the economics of your situation 1. how old is your line. 2. is it steel galvanized pipe. If its old and steel replace all of it. (copper k 3. if its copper look for the greenest grass in summer and dig it up. if its plastic or well pipe same as #3.is there a meter before or after the leak?
