Our family is saddened to announce the untimely death of David William Derkach on Friday, October 23, 2015. Dave is survived by brothers Chuck (Justyna), Bill (Sharon), and nephews Nicolas, Michael, Justin, Gregory, and Steven. He will also be missed by his dear friends, Herb, and Diane Jacobson, and Marc Werb. Sincere Thank You to Loreli for her dedicated care and friendship. Dave was a respected construction project scheduler and worked on several mega-projects in the steel and mining industry in North America and abroad, and retired as an Associate from Hatch Inc. As per Dave's wishes, cremation has taken place. For further information, please call Cresmount Upper James Chapel 905- 575-1154.