"This indicator uses the JMP definition of a ""basic drinking water service""
""Basic drinking water services"" are defined as improved sources or delivery points that by nature of their construction are protected from outside contamination, in particular from outside contamination with fecal matter AND where collection time is no more than 30 minutes for a roundtrip including queueing.
Drinking water sources meeting these criteria include:
Piped drinking water supply on premises
Public tap/standpost;
Tube well/borehole
Protected dug well
Protected spring
Rainwater; and/or
bottled water (when another basic service is used for handwashing, cooking or other basic personal hygiene purposes)
All other services are considered to be ""unimproved"", and include: unprotected dug well, unprotected spring, cart with small tank/drum, tanker truck, surface water (river, dam, lake, pond, stream, canal, irrigation channel), and bottled water (unless basic services are being used for handwashing, cooking, and other basic personal hygiene purposes)"