The "crisis" referred to appears to mean the recent loss of pressure throughout the system, which happened after the boil water advisory, active since July 29th. The boil water advisory should be considered a crisis of its own, I agree, but the loss of pressure meant many could not get even basic washing and toilet use done, which made international news.
The article is written in a difficult to follow reverse chronological format, but it is clear from its contents that ~24 hours after the arrival of the Corps (at a time when other services were already working on the problem and had likely made big progress), pressure in the system was increased to about 86 psi and nearly the entire system had water supply again: the immediate, primary, news-worthy crisis was then resolved, and has since stayed resolved.
Beyond that, work has been done to achieve the higher target pressure desired (also done), get production up and clean out contaminated tanks and beds (mostly done), and to set things up for the full test needed to remove the advisory (not yet done, but anticipated to be soon).
The headline is a strange fact to pick out in all this, but it does seem to be essentially true.