Hdc EngineeringWrite a Review217-352-6976Be the first to review!PO Box 140, Champaign, IL 61824Hi there!Be the first to review!5First-class4Better than most3About what I expected2Not the worst...1DisappointingClick to RateMore Business InfoHoursDo you know the hours for this business?CategoriesEcological Engineers, Consulting Engineers, Environmental & Ecological Consultants, Professional Engineers Suggest an Edit