How to you get sewage to go under a river?
Option 1 – dig it deep, with a wide berth for the floodway.
Option 2 – keep it shallow but bury it in a big load of stone placed in the floodway area.
Which is the legal option? Obviously #1. What did the Town choose to do, even though a sewage lift station was less than 500 feet downstream? Obviously #2.
Would this tend to de-stabilize the opposite bank, where home-owners own to the center of the river. You betcha!