A septic tank works by letting solids settle and holding them while the liquid above moves on. That only keeps working while there is room in the tank. Once the sludge layer gets deep enough, solids start carrying through to the drainfield, and a damaged drainfield is a repair measured in thousands.
Pumping on a sensible interval is what prevents that. It is the cheapest thing you can do for a septic system, and the one most often left until something goes wrong.
We serve Steubenville itself along with Wintersville, Toronto and the surrounding Jefferson County communities. Mingo Junction has its own page if that is closer to you.