COLUMBUS- The Nebraska Department of Health and Human Services has notified the City of Columbus and East Central District Health Department about the level of arsenic in the city water supply that was out of compliance.

EPA regulations require public water systems maintain an average level below 10 micro grams per liter. Over a 12 month period, Columbus’ average arsenic levels reached 11 micro grams during testing. Health officials say there is no immediate danger to the public’s health. Health effects associated with exposure to arsenic at these levels occur after many years of constant exposure.

Officials say residents should not boil water for drinking as boiling, freezing, or letting water stand does not reduce the arsenic level. Excessive boiling can make the arsenic more concentrated. Bottled water is not considered necessary because of the levels.