How do i lay mains water supply pipe from road to house?
You need to contact your water supplier and express your concerns about the pipe being lead, however you must be certain it is lead from the main to your stoptap, it is possible that it is plastic from the mains to the stoptap and lead afterwards in which case it is your responsibility, the lead pipe will have been there for many years and have a perfectly ok coat of limescale which does not affect the water you drink though this can be tested if you have concerns.