Some of the properties you mention already exist in general:
Am 06.07.2012 17:44, schrieb Glom:
toilet=yes
amenity=toilets [1]
waste_disposal=true
amenity=waste_basket [2] or
amenity=waste_disposal [3]
waste_disposal:recycling=true
amenity=recycling and tons of possible subtags [4]
first_aid_kit=yes
I fear, there are several variants of tagging first aid kits, e.g. in
the Healthcare 2.0 proposal [5]
potable_water=yes
amenity=drinking_water [6]
At least these facilities therefore can - and IMHO should, where
possible be tagged separately.
At a big beach of several hectare size it does not help to know that
somewhere are toilets - I have to know if it's 2km to the one direction
or 1.5 to the other one to walk.
regards
Peter
[1] http://wiki.openstreetmap.org/wiki/Tag:amenity%3Dtoilets
[2] http://wiki.openstreetmap.org/wiki/Tag:amenity%3Dwaste_basket
[3] http://wiki.openstreetmap.org/wiki/Tag:amenity%3Dwaste_disposal
[4] http://wiki.openstreetmap.org/wiki/Tag:amenity%3Drecycling
[5]
http://wiki.openstreetmap.org/wiki/Proposed_features/Healthcare_2.0#health_amenity:type.3D.2A
[6] http://wiki.openstreetmap.org/wiki/Drinking_Water
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