Senior John Brennan prepares to graduate. Posted: May, 22, 2017 - 12:00pm ACHS Graduation Central Antioch Community High School The class of 2017 graduated on Sunday the 21st of May. Did you miss the graduation ceremony? Want to replay all of your favorite memories? DVD recordings can be purchased through Infinite Campus Portal-Payments-Optional Items. The DVDs should be ready the first week of July and can be picked up in the ACHS front office. In the meantimes, check out this album of images from the ceremony.