You are fine to use the water your made.
However, one thing to keep in mind is that when there's an issue with the water system, Dekalb County will sometimes bump up their levels of chlorine & chloramine as a precaution. Dekalb County has been using chloramines for a while now but any increase can prematurely exhaust the carbon's ability to remove it. This holds true for the standard carbon that removes chlorine as well as the other type that removes chloramines.