Guy I knew maybe 25 years ago, lived in the middle of nowhere with his wife on a farm. They were pretty broke.
Their septic tank and field were shot. He hired someone with a trencher to dig a trench from the house to a creek, maybe 250 yards away.
Got the trench dug, paid the man and said "I will handle the rest"
Ran his own pipe, dumping directly into the creek and filled in the dirt. Probably still doing it that way, but I have been there in years. No septic tank or anything. Direct route from house to creek.