(KLZA)--The boil water advisory for the city of Humboldt, Nebraska has been lifted.

That word came Saturday from the city after water samples came back negative for coliform.

The water system is no longer being chlorinated. The city says the residual will be in the system for a few days, but the water is completely safe to drink.

The city says customers should run cold water down their faucets for one minute. In addition, you should clean automatic ice makers by making and discarding three batches of ice. Also you should run water softeners through a regeneration cycle.

The boil advisory was issued July 20th after E-coli was found at the point-of- entry into the public water system.