The precautionary boil advisory in Riverside is no longer in effect. The advisory for homes and businesses on North Green Street between Highway 22 and 3rd Street was lifted Saturday. This came after four water samples tested by the State Hygienic Laboratory were determined to be free of contaminants. According to City Administrator Rusty Rogerson, a water main broke last Tuesday morning, and repairs were made the day after when the location of the leak was discovered.