Amish usually have farms well away from we English, particularly Old Order Amish.
If Pennsylvania pays for sewers like Ohio it will cost the Amish an arm and a leg to hook up.
In Ohio the home owner pays per foot of street frontage for the sewer installation. Farms will have hundreds of feet of frontage.
Typically, it will be in the thousands of dollars per foot of frontage for sewer installation.
Most people end up getting a second mortgage if sewers come down their road.