Like Goose3 said it depends on where you live.
I'm also uphill of the plant. Between me and it there is a lift station, meaning it flows downhill to the lift station where it gets pumped up to a higher elevation before rolling downhill again.
For me, if power goes out the sewage would flow to the lift station where it would then overflow and make it's way to the river. For it to backup to my house would require that the sewer main become clogged close to my home. Kinda hard to do since it's a large pipe, Even if that happened it would still come out of manhole covers downhill from my house. The only way for my house to back up with sewage would be if something clogged the pipe between my house and the sewer main. (pretty much what would happen if there was a valve between the two and it got shut, by me or others.)
Now if you live on really flat ground, or at a lower elevation then your local treatment plant that would be a totally different story.
I'm also uphill of the plant. Between me and it there is a lift station, meaning it flows downhill to the lift station where it gets pumped up to a higher elevation before rolling downhill again.
For me, if power goes out the sewage would flow to the lift station where it would then overflow and make it's way to the river. For it to backup to my house would require that the sewer main become clogged close to my home. Kinda hard to do since it's a large pipe, Even if that happened it would still come out of manhole covers downhill from my house. The only way for my house to back up with sewage would be if something clogged the pipe between my house and the sewer main. (pretty much what would happen if there was a valve between the two and it got shut, by me or others.)
Now if you live on really flat ground, or at a lower elevation then your local treatment plant that would be a totally different story.
