Joe, my advice to you is to contact a local Registered Professional Engineer, one that is versed in alternative on-site sewage treatment systems, (shop around)and have the engineer design a system for you. You can then decide as to whether or not the cost of the system is worth it to you. I suggest that you go to each of the three homes within 100 yards of your land, and inquire of the owners as their solution to the sewage treatment problem on their property. JWA