^^^^
+1,000.
Brewers also often have a different source than the city water report you see, and even the Reinheitsgebot allows brewers to add or remove any minerals they like, as long as the result is still water that could, in theory, exist somewhere in the natural world. They modify the water any way they have to, to a) hit their desired pH and b) get the flavor profile they want in the beer. We should follow suit.