Brooklyn Brown Ale made with all the flavor of the East River.
Seriously, if you distill the water it doesn't matter what the source is, it ends up as just water.
I remember the ads for Genesee Beer which showed a pristine waterfall as the source of their brew. In reality the brewery was located in Rochester, New York, someplace downstream from the Eastman Kodak plant.
Hoppy, with hints of barley and hypo.