Around here that home would have to have a holding tank type septic and have it pumped every few months.
I don't believe that we are allowed to have holding tanks... probably with good reason. I looked at a place on a salmon stream which had one, and the realtor suggested that all I had to do was punch a hole in the side. No thanks, I prefer not to swim in my own s###... nor do I care to dine on fish which have been eating the same.
My grandfather built his house in 1927... things were different then. Until he passed away in 1979 and my parents moved there, the effluence went right into a small stream. 1/2 mile downstream we caught trout. Supposedly there was a settling tank to catch solids, but I remember seeing toilet paper hanging off the end of the drain pipe.
The hemlock tank I mentioned previously was at the other house on the property, which I spent my first 4 years in and has since been torn down. Surprisingly enough, that one worked.