NATCHEZ — The Mississippi Department of Health issued Monday a boil-water advisory for approximately 792 customers who are served by Oakland Water Works in Adams County.

Sampling showed the presence of total coliform bacteria in the distribution system and the presence of total coliform bacteria in the well, and no disinfection in the system drinking water, MSDH said in a statement.

Health officials strongly recommend that all water be boiled vigorously for one minute before it is consumed. This precaution will last at least two full days, and water system officials will be immediately notified when the boil water alert is lifted.

The United States Environmental Protection Agency sets drinking water standards and has determined that the presence of total coliform is a public health concern.

Coliforms are bacteria that are naturally present in the environment and are used as an indicator that other potentially harmful bacteria may be present. Coliforms were found in more samples than allowed and this was a warning of potential problems with the treatment process or pipes which distribute the water.