Oltman Middle School, Cottage Grove Stillwater Area High School, Stillwater Lily Lake Elementary School, Stillwater The most recent adds to the list are Forest Lake Elementary School, New Life Academy, Lily Lake Elementary School and Oltman Middle School. Subscribe In order to be added to the Minnesota Department of Health's list, a school must report at least five cases of a student or staff member being inside the building while infectious and within the two-week reporting period, the department said. If a school goes 28 days with no new cases, they are removed from the list, the department said. Subscribe