All hail to TC High School We sing praise to thee. If you believe you, or someone else, has been the target of harassment, bullying, cyber-bullying, and/or discrimination, please use this form to report all allegations. Phone 253-583-5550 | Fax 253-583-5558. Get your copy or read it here! Powered by Edlio. Rah! Olean High School was traditionally grades 9-12 up until the finish of the 2011–2012 academic year. The District provides equal access to community and youth organizations. Here is where we learn for living, Here is where we all begin.