GRAND RAPIDS, Mich. — A no contact order remains in effect for the Grand River in Grand Rapids, Mich.

The health department there is testing the waters for E. Coli bacteria. They say high levels of E. Coli are a good indicator that there are other harmful bacteria in the water like Listeria.

"With flood waters you get an elevated level of E. Coli counts because of septic tanks overflowing as well as waste water treatment plants that have been stressed discharging into the river," said Sara Simmons at the Kent County Health Department.

Those test results should be in by Saturday. Officials will then decide if more tests are needed to make sure the public doesn't get sick.