RICHMOND -- Bacteria associated with Legionnaires' disease has been found in the Frank Hagel Federal Building, according to television station ABC7 News.

The station reported Thursday that Aug. 27 testing found legionella bacteria in water samples, according to an Social Security Administration employee memo. The memo goes on to state the discovery of the bacteria would have "no impact on health and safety of building employees," ABC7 added.

The bacteria has been boiled out of the building's tepid water system -- the warm water used in the restroom sinks, separate from the drinking water, a SSA spokeswoman told ABC7.

Contra Costa Health Services has not been notified of any testing or report of any bacteria found, according to spokeswoman Kate Fowlie.

Fowlie added that is not uncommon for Legionella bacteria to be found in older buildings' water systems and that the agency would only be notified if a person had fallen ill with the noncontagious, pneumonia-like infection.

According to the agency website, the Contra Costa Health Services has three to 10 cases of Legionnaires identified in the county each year, and annually there are about 8,000 to 18,000 people hospitalized with Legionnaires in the U.S.

An outbreak of the bacteria at the facility in 1991 killed one woman and sickened more than a dozen others.

Officials at the Frank Hagel Federal Building and the Social Security Administration were not immediately available for comment.

Contact Katie Nelson at knelson@bayareanewsgroup.com and follow her at Twitter.com/katienelson210.