Just to note that some of these water sources come off farming land and therefore should be considered contaminated. Be prepared to treat the water.
Just to expand this, be aware there are two types of water contamination - biological (eg virus, bacteria, protozoa, algae, fungi, and multicellular animal parasites (helminths) etc) - and chemical (eg oils, pesticides, fertilisers, zinc, mercury, cadmium, arsenic, various salts, microplastics and lots of other stuff). Generally, the traditional water treatment methods - boiling, quality water filters, iodine, aquatabs, uv light purifiers etc will remove the risks of the biological contaminants, but they will do nothing to mitigate the chemical ones. You would need some form of distillation or reverse osmosis system for them,
and know exactly how to use them effectively. To minimise your risk of harm, collect water from sources which have no human inputs upstream, usually pristine bushland. This is not always possible or easy, so sometimes you need to compromise to some level. As a general rule, look at maps to assess the source of the water, try to find any taps that provide treated potable water, and carry water if local water may not be safe. This is becoming more of an issue as humans continue to despoil the world irresponsibly.
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