posted on Apr, 15 2016 @ 04:27 AM
I work in the waste water/fresh water treatment field [industrial and all natural] ...currently. Previously in chemical plant(s) specific waste water
treatment and lab [WWTL].
The question you ask is complicated and requires access to sampling.
If no facility is available: Distillation (for discussion) is a better bet if in an emergency; if you would have access to activated carbon, filter
for a few hours and then distill. Carbon filtering is not AS effective in the field...but has value.
Distillation, will not remove chemicals with boiling points lower than water eg. Benzene. Also the altitude has an affect on this method (many
Try reading water treatment information from 1890-1940. There is good info there...but no real answer for "all" chemicals