I mean you can collect rain water (or build your own bore hole), process it, treat it for storage, keep it, test it to verify that it’s still safe to drink, install and maintain a pumping system to provide pressure, provide adequate documentation and inspection opportunities, provide a traceable record of where it has come from, install a water water treatment system, provide the necessary permits to verify that you’re not draining polluted water into the ocean etc etc…

But I guess if you want someone else to do that for you, some salaries, know how and materials will need to get paid for, yes.