'MURICA — What is raw water you ask? It's unfiltered, untreated, unsterilized water collected from natural springs.
Raw water fans are worried about contaminants such as chemicals and lead in municipal water and additives such as fluoride.
It's also ridiculously expensive. In SF, it can cost $61 dollars for a 2.5 gallon jug of raw water that could also give you raw cholera. Yay!
Besides cholera, the clearest stream water can still be filled with animal doo doo, Hepatitis A and E. Coli.