3 ms·
Northern Europe often not.
by wouldbecouldbe 4y ago
Northern Europe often not.
- giantg2 4y agoI would guess that's only if it's from a groundwater source. I would also guess that's the exception rather than the rule. https://waterandhealth.org/newsletter/new/summer-1998/disinfection.html https://waterandhealth.org/newsletter/new/summer-1998/disinf...