I know the basics. Property owner is responsible for the stuff on their property leading up to the municipal sewer main.
But what if the municipality is remarkably stupid and puts the sewer main in the middle of nowhere?
SWMBO just bought a house in November. She's been having water backing up in her basement. I have a 25' snake and gave that a shot but couldn't reach it. Four plumbers, two township sewer authority guys, and 4 hours later, they discovered this in the manhole. Her line has broken and sunk about 3".
Ok, so dig it up and fix, right? Not so much. Take a look at the screencap below. Purple is her house, Red is the manhole where she connects to the main, and blue is where we assume her line goes based on listening to the snake with a microphone.
The other fun part is that we didn't see any other lines attaching to that manhole, which means that there may be two or three other houses that branch into her line. Sewer authority said that there is a main that comes up from the bottom and goes out the side street (green line) but they have nothing on the map that even shows that the manhole/main at the red arrow even exists.
How can they do that? It will require her to get three separate easements, permission from all the neighbors, tear up three people's lawns, and cost her about $20k. She's paying through the nose tomorrow to have a plumber come out with a camera and try to map the whole thing to see if anyone else is on her line, but WTF?
How does she proceed with this? The township is telling her that it's all her responsibility, but how can she be responsible for sewer line that isn't on her property?