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A comment on Show HN: An interactive map of countries by tap water quality. Parent comment

Re:Show HN: An interactive map of countries by tap water qua... by Gibbon1 on Saturday April 25, 2020 @08:35PM (#22983048)
An example, San Francisco historically got it's water from the Hetch Hetchy Reservoir. It's all from alpine snow melt and springs. Used to not be chlorinated because it's organic content is very low. I assume a lot of Canada is the same.

https://en.wikipedia.org/wiki/O'Shaughnessy_Dam_(California)

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Re:Show HN: An interactive map of countries by tap water qua... by chupasaurus on Saturday April 25, 2020 @09:30PM (#22983432)
There is more precipitation during a warmer half of the year on their territory outside of ocean shores where it's in reverse, also the gap between those grows further to north.
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Re:Show HN: An interactive map of countries by tap water qua... by ajayyy on Saturday April 25, 2020 @09:17PM (#22983348)
Most Ontario Canada's water is from the great lakes
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