03/08/2012 04:58 EST | Updated 05/08/2012 05:12 EDT

Boil order lifted at Cape Breton University after tests find no bacteria

SYDNEY, N.S. - Provincial officials have lifted a boil order that was issued after a water sample from a residence at Cape Breton University tested positive for total coliform bacteria.

The order was put in place Wednesday and affected the Nova Scotia Community College Marconi campus and Cape Breton University.

The Environment Department issued a release Thursday saying subsequent samples have tested negative for E. coli and total coliform, and the order has been lifted.

Marconi Campus supplies the water for the university and as a registered water supplier with the province, must test regularly.

The department says positive tests can be caused by many factors, including testing errors or contaminated samples.

According to the department's website, total coliform bacteria is not likely to cause illness, but it indicates a water supply may be vulnerable to more harmful contamination.