[Tagging] RFC - A broad look at fountains

[Minh Nguyen]

Vào lúc 23:50 2022-10-08, stevea đã viết:
> On Oct 8, 2022, at 11:44 PM, Graeme Fitzpatrick <graemefitz1 at gmail.com> wrote:
>> On Sun, 9 Oct 2022 at 16:36, stevea <steveaOSM at softworkers.com> wrote:
>>
>>> Disagree, some are are the same feature .. taps can be drinking water .. or 'not suitable for drinking' (legal CYA?), 'recommend you boil' (more CYA?), and 'not suitable for drinking' (you really would not drink this stuff, just look and smell it!)
>>
>> Yes, taps CAN be drinking water, but not necessarily are.
>>
>> Don't know if it's an Oz-only thing, but we have some taps (both in parks & some private properties) that are coloured purple to show that they are connected to a separate recycled water grid, so the water should NOT be drunk.
>>
>> https://www.westernportwater.com.au/wp-content/uploads/2015/06/Recycled-Water2.jpg
> 
> Yes, Graeme, in California (USA) we have exactly these (such as my golf course example).  While there is no "purple means don't drink" color-coding here, there seems to be a state law (or something just as firm) that if a publicly-accessible "water tap" dispenses water which is NOT safe to drink (and again, these are no particular color), there MUST be a sign that says "non-potable" or "do not drink" or "using reclaimed water" or has the "international red circle-with-a-slash-means no and a picture of a human drinking water" icon...or ALL of the above.

In California, any pipe or tap carrying recycled water is legally 
required to be colored purple. [1] For water from other sources, "Do Not 
Drink", "No Beber", or sign PS-013 [2] would be posted. Indoors, the 
Uniform Plumbing Code, a national standard, specifies a particular shade 
of purple paint for non-potable water pipes when the building also has 
potable water pipes. [3]

drinking_water=no is already approved for non-potable water, and there 
are non-Boolean values and drinking_water:legal=* if you'd like to split 
hairs. I'd expect that a tag for fountains and a tag for drinking 
fountains would both imply a default value for drinking_water=* by 
default, but the default should be overridden when more is known about 
the water source.

With a tag for water taps in general, it isn't as clear. But as a data 
consumer or user, I wouldn't be eager to assume that an outdoor tap is 
potable without more context. I've been to cemeteries in swampy New 
Orleans that have taps signposted "Water for Flowers" and never once 
considered that they might be hooked up to the municipal water system 
and maintained to the standard of a public drinking fountain.

[1] 
https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/documents/lawbook/rwstatutes_20170113.pdf#page=30
[2] https://commons.wikimedia.org/wiki/File:MUTCD-CA_PS-013.svg
[3] https://forms.iapmo.org/email_marketing/codespotlight/2017/Aug3.htm

-- 
minh at nguyen.cincinnati.oh.us