On 12-Jan-18 03:25 AM, Cez jod wrote:
I noticed that tagging without drinking_water=no/yes can have one
weakness if the water is contaminated permanently with metal salts of
heavy metals and other chemical compounds poisonous. Maybe can solve
this problem using hazard=* e.g.?
natural=spring / amenity=drinking_water
drinking_water:legal=no (when it is a microbiological threat it is not
so bad)
hazard=poison (when contaminated with heavy metal salts, water can not
be clean by boiling)
drinking_water=no means you cannot drink the water .. so that covers any
contamination including metal salts of heavy metals and other chemical
compounds poisonous.
How water may be purified is not covered in the present scheme. The
problem raised before was that any tagging may be seen as providing a
legal liability, ignoring the fact that drinking_water=yes may also
provide a legal liability.
To me it is logical to add values to drinking_water=*, such as filter,
boil, filter_boil .. but then there is also the degree of filtering..
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