This town has sirens that go off at random times every day. Maybe not Sunday, I don’t remember if they go off on Sundays. It’s always a different time, I have seen no rhythm or reason, no pattern. It reminds me of the sirens the mines used to use to signal shift change when I was a kid.
@cjcrew If its not posted on Emergency Services page then do a google search for your town at your local newspaper's website.
Here are 3 different examples:
Hawaii, AZ's Maricopa County, Indian Point Nuclear Power plant 15 miles north of NYC.