Minnesota

An HOA board member said it was about 800 AM in an email she sent 813 AM. She apparently talked to the city and was told it was a water main break (it wasn't - your article and the Strib says it was a malfunctioning valve on the Golden Valley water tower). Nothing about boiling water in her 813 AM email.

The first notification from any state or local authority I got was a text message 954 AM. (I don't notice text messages unless I'm near the phone, or check for them all that often so I didn't see that til later). Then I got an emergency thingy kind of like an Amber alert 1035 AM where it beeps loudly repeatedly and flashes a message on the screen. These all had the boil water advisory.

This seems to be like a pretty long time to be notified.

I'm in Golden Valley and they are updating the water alert. Since the original, they have had two updates as of this posting (they don't time-stamp anything, just date-stamp) -- https://www.goldenvalleymn.gov/

The latest as of 406 PM:

blah blah de blah ... "It takes 16–18 hours for results to come back, so the advisory will remain in place for at least 24 hours. When lab testing is complete, the information will be shared here as soon as it is available."

No problem, I have some stored water that will easily last, so no need for me to boil anything.

From KSTP article in OP: "After a water outage early Sunday morning,"

I didn't experience a water outage, but then I don't leave a tap running so that I can monitor constantly! This is the first time I've heard of a water outage ... the alerts and the Golden Valley website and the Strib article I looked at an hour ago didn't/don't mention an outage.

All 3 cities are heavily Blue ...