The boil advisory has been lifted. You're advised to flush your cold water lines first, run until very cold 1+ minutes. Then your fridge water dispenser at least a quart of water. Then your hot enough to flush your water heater. Don't forget to empty your ice makers and flush your outside houses also.

https://www.sioux-city.org/press-releases/4849-steps-to-clear-water-lines-water-boil-warning-lifted-...

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A boil advisory has been issued for residents of Sioux City & Dakota Dunes within the Grandview Pressure Zone.

The release says the boil advisory is in effect until March 7th, 2017 at 10:00AM for all water customers in the green zone on the map.

All water must be boiled for at least 1 minute before drinking, making ice, washing dishes, brushing teeth or using for food.

More from the city including the entire map at https://sioux-city.org/press-releases/4844-drinking-water-warning-boil-your-water-before-using