I'll contribute what I know to this thread - I've had contact with the mapper in relation to other, less detailed, contributions and was reassured that all data was correctly obtained having regard both to permission to use in OSM and to the potentially encumbered nature of any data sources used.
The basics were: Data obtained from a local company This company had been engaged to prepare surveys for group water schemes It is common for group water schemes to commission their own surveys, as it can be cheaper than buying data the OSI already has In the case of the data set I was interested in, the line of the NI border had been edited. In this instance, the source was explained as out-of-copyright OSNI maps. All this being so, it looks like the source surveys for his mapping have carefully excluded at least some of the potentially encumbered sources. Furthermore, the mapper is clearly considering what may and may not be included in OSM. Hopefully he will clarify any outstanding concerns people have, as the data are extremely good. Cheers, Dermot -- -------------------------------------- Iren sind menschlich _______________________________________________ Talk-ie mailing list Talk-ie@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ie