Same here, in that you own the property and buildings on it, but there are utility right of ways on the deed which entitle them to use the land (usually over or under) for their systems. My deed even has a gas pipeline
like this one, a half mile away because when it was laid one guy owned the whole road. When the properties were broken off, everything on the original deed is copied onto each deed although it doesn't pertain to that property.
This past summer the township sewer authority
* took a 50 foot swath by eminent domain, the whole length of my property to cut all the trees and bury a 3 ft diameter sewer line through my backyard.
* We have the authority to do anything we want, and there's not a fucking thing you can do about it.
If you doubt it see
SCOTUS ruling
Kelo v. the city of New London.