What about introducing a name space:
water_source:potable=designated | mineral | heilwasser (I failed to find a
good English-language analogue, could someone help please?)
water_source:sparkling=yes | no | unknown
water_source:nonpotable=compromised | designated

In principle, details regarding the kind of water source could be provided
here as well, to free up the top level a bit and help data users:

water_source:type = tap | fountain | well | spring

Please comment.

Cheers,
Kotya



On Thu, Nov 13, 2014 at 5:07 PM, Martin Koppenhoefer <dieterdre...@gmail.com
> wrote:

>
> 2014-11-13 6:50 GMT+01:00 Bryce Nesbitt <bry...@obviously.com>:
>
>> Let's start with the cases:
>>
>> * Designated potable, as in from a city tap.
>> * Designated non-potable, as in from a farm ditch, or purple pipe (USA).
>> This would include designated irrigation water of most sorts.
>> * Potable but with a known defect such as high mineral content.
>> * Unspecified.  This may cover most backcountry springs where no testing
>> is done, but no promises are made.
>> * Compromised.  For example a muddy spring or clearly impacted water
>> source usable only in dire emergencies.
>>
>
>
>
> there are more types of water that might be interesting to people:
>
> - mineral water  http://en.wikipedia.org/wiki/Mineral_water
> - sparkling attribute (if it is naturally effervescent)
> - in Germany there is a subclass of mineral water (~"healing water" in
> German "Heilwasser") which has positive physiologic effects.
>
> cheers,
> Martin
>
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