Mariposa County Unified School District Superintendent Updates the Community on the Status of the Schools After the Announcement of a Student Testing Positive for COVID-19 (With Video) Details Last Updated: Saturday, 31 October 2020 05:54 Published: Saturday, 31 October 2020 05:50 View Comments October 31, 2020 - On Friday, Jeff Aranguena, Mariposa County Unified School District Superintendent updated the community on the status of the schools after the announcement of a student testing positive for COVID-19. Source: MCUSD View the discussion thread. back to top