Ummm. Not sure what you're getting at. I suppose it all gets "shipped around the world" due to the global climatic system that drives fresh water distribution in general. However it says on the bottle it's from Shropshire.
Elan Valley has a series of reservoirs that feed water Eastwards to supply Birmingham. 'Source' might have been a tap in Shropshire from same feed. Clearly not though as Waitrose advise it is filtered through ancient rock first.
Reassuring that it gets the (V) for Vegetarian symbol too.
Isn't Shropshire supplied from the Elan Valley?