Whilst digging footings for our extension, we uncovered a copper pipe which ran in the same trench as the electric cable. Is it possible that this is the incoming water supply for the house? The house was built in early 1970's. I need to tap into the water supply as only the extension will now require water as bathroom and kitchen will now be there. I have not heard of rising mains being in copper outside of a building. I know it is not the gas pipe as it is nowhere near the gas meter box and gas was installed later than the original build.
Any advice would be appreciated.