The City of Amarillo Sent Out a Warning Notice About Our Water

If you receive water from the City of Amarillo and you pay a water bill, then you received a warning letter in the mail about the City not properly testing the water for an 8-hour period in November.  So what does that mean, and why are we just now hearing about it 4 months later?

For me personally, I don't drink tap water, but I do use it to cook and of course use it to shower.  I am concerned as it to why it did take 4 months to let consumers know that the water may not have been safe.  However, I do realize that if it was a huge health hazard we would have heard about it within a day.