It will be the deepth at where it leaves the in side of the house Davey , and fall to the deepth of the mian under the street , i find them fron four feet to as deep as eleven feet at the side walk , over all most at the deepest run at six feet . The type of pipe and i should know the name of the dam stuff and i can't think of it right now , but its a bit like a tare and paper mixture , places where we have come across this pipe have been east of bayfeild st to st vincent and south of rose . Miller plumbing will know the area's in barrie where it was used the most , they've done a quit a bit with the city in the past , they are one of the oldest plumbing companys if not the oldest