Earlier quoted context omitted.
Usually because the grade and location of the water is not suitable for residential use.
Farmers don't need drinking-safe water but that doesn't justify the price difference. There should be three grades of water: 1) Untreated. 2) Salty (desalinated, but not to full freshwater standards), used for toilets, showers and the like. 3) Potable. What you're doing with the water should have no bearing on the price and the price difference should only reflect the additional cost of going from #1 or #2 to #3. You…
Most of Central California for instance isn’t in a watershed that connects to the Colorado in any way.