Now we know

It was still in question until 2 days ago as to whether or not we were on city sewer or a septic tank.
Our recent water/sewer bill came in and yes we are on a private septic tank.
Good news- our water/sewer bill is the lowest I've ever seen it.
Bad news- a genius had poured a cement pad right on top of the septic access... Leaving us without access to have it pumped should we need to do so.

Project to add to our house list: remove cement pad and create a safe access to the septic tank.