Waterloo Comm School District 2015-2016 Calendar https://waterloocomm.tandem.co/ Key dates for Waterloo Comm School District. en-us 8/31/15 First Day of School https://waterloocomm.tandem.co/index.php?type=key_date&action=details&id=237 237-waterloocomm@intand.com 11/26/15 - 11/27/15 Thanksgiving Break https://waterloocomm.tandem.co/index.php?type=key_date&action=details&id=238 238-waterloocomm@intand.com 3/14/16 - 3/18/16 Spring Break https://waterloocomm.tandem.co/index.php?type=key_date&action=details&id=239 239-waterloocomm@intand.com 6/7/16 Last Day of School https://waterloocomm.tandem.co/index.php?type=key_date&action=details&id=240 240-waterloocomm@intand.com