There is a 42 main that runs fairly close to my house.. within feet actually (the house is close to the road on that side as well). The flow is on the order of 10mil gals a day! The house has been fine for 30 years (2nd year of my ownership). This winter the main was hit by a crew about 100 feet down hill from the house, and it was repaired with a sleeve/jacket. However, since that repair, I have felt a low frequency shaking throught the house. Most people dont notice it, but now some of the floors are bouncy from settling and its quite easily felt there. I have already spent $4000 repairing settling that has occurred since Jan. I just recently realized the pipe may be the fault as the house never had problems before. Like any municipality, they dont accept blame. I need info regarding testing and companies that might specialize in this kind of work or steps I can take to measure vibration with easily attainable devices.
A few things to ponder here: A water main shaking your house will shake everyones house around you.Make sure you don't have a faulty valve situation in your house.Shut off water at your main...if the vibration stops,then the problem is yours. If the city water main is shaking,the work crews would(or will be) working on breaks everyday.If this is the case, they'll fix it quick.