>>1640702For most places you need to have a percolation test done to see if you can install a septic tank, and then you need a tank to accommodate the people living on the property, sometimes that amount is based on "Per bedroom".
See if its legal to build some supplemental outhouses. Maybe learn about soil composition in relation to percolation.
If you can, put grey water to work in irrigating plants, like maybe leaching off to some fruit trees.
Check your county's building codes for guidance.
ALSO: In most places its technically illegal to camp on your own land without a permit for longer than two weeks. Its gay I know.
Source: I was researching this myself the other day.