• At any time this year if you have any questions please contact me at 610-522-4375 ext 1175. You can leave a message on my voice mail and I will return your call as soon as possible. You can also contact me at cbreithaupt@sedelco.org  . If you would like to have a parent-teacher conference please contact me. DTS has regularly scheduled parent-teacher conferences after the first marking (November 19 - 21 2012) and after the third marking period (April 15 - 17, 2013.