The library
A small, slowly-growing collection of source-cited primers about drinking-water access — how it is measured, who measures it, and what the headline numbers actually capture and miss. Plain English. Free to copy, translate, and republish.
Every external source on every page is HEAD-probed once a day by our curator Lambda. Broken links are repaired or dropped automatically.
Primers
Read-through pieces. Each one is roughly 600–900 words, source-cited, focused on a single concept that comes up in every drinking-water statistic.
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What “safely managed drinking water” actually means in JMP
The single most-cited phrase in global water reporting. The five rungs of the JMP service ladder, what each one means, why “safely managed” is the headline SDG indicator, and what it does not cover. Foundational.
How to use this library
Everything here is published under Creative Commons BY-SA 4.0. You may copy, translate, adapt, and republish any of it — please keep the source citations intact, and please publish your derivative work under the same licence so the next person can keep building.
If you are a teacher, an after-school program, a community group, a parent, a librarian, or a person who works with kids: please take what is useful and pass it on.
If you find an error, an out-of-date source, or a claim that overstates the underlying evidence: how to flag it.