LOGAN, Utah (AP) — Utah State University plans to test nearly 300 students for COVID-19 after wastewater samples from four dormitories showed elevated levels of the coronavirus, school officials said Sunday.

The 287 students who will be tested Sunday and Monday live in the Rich, Jones, Morgan and Davis dorms on the campus in Logan. There have been no reported positive tests for COVID-19 in those residence halls so far.

Students in those dorms must quarantine until the test results are available, which could take up to four days. They are also asked to fill out a form to ensure they receive academic support, food deliveries and other resources.

Classes are scheduled to begin on Monday for about 28,000 undergraduate and graduate students.

Utah State is one of a small handful of schools using wastewater sampling to help safeguard against a COVID-19 outbreak, The Salt Lake Tribune reported

Officials with the University of Arizona said Thursday the school used wastewater testing to prevent a COVID-19 outbreak on campus. A test of just over 300 people in one dorm with elevated levels of coronavirus in the wastewater turned up two cases, said university President Robert Robbins. Neither student had symptoms. They were isolated.