At a news conference on Thursday, Mississippi Governor Tate Reeves announced that the boil-water advisory in Jackson has been withdrawn for all users of the water system.
Jackson citizens and officials have been warning about water problems for years.
The Mississippi State Department of Health formally started testing the water quality on Tuesday.
The city reported excessive levels of the mineral manganese, "coupled with the use of lime," were to blame for the city's main water treatment facility, O.B. Curtis, having hazy water.
Because there is a larger likelihood that the water may contain pathogenic organisms because of the cloudiness, the state issued the boil-water advisory.
On August 29, the water system started to fail to the point where water was scarcely, if at all, coming out of faucets. This marked the beginning of a more serious issue.