AUGUSTA, Maine (AP) — Tests for the coronavirus in wastewater in Maine confirmed a small presence of the virus, officials said.

The Greater Augusta Utility District confirmed the small concentration of the virus that coincided with two people testing positive in Kennebec County, located in between Portland and Bangor, Maine.

Two tests of wastewater samples showed no detectable levels of the virus but a third test yielded a small concentration of the virus, officials said.

“We want to be mindful that COVID-19 is a part of our daily lives. Wastewater testing and monitoring of the results will continue to guide our efforts to return to the new normal,” said Augusta City Manager William Bridgeo.

The tests were conducted by Massachusetts-based Biobot, which tests sewage for genetic fragments of the virus in human waste.

The water district serves thousands of homes and businesses in Augusta, Hallowell, Manchester, Monmouth and Winthrop.