Donald K. Pings, 76, of Thornton, CO passed away Nov. 24, 2015. Don graduated from Basalt High School, Adams State College and Arizona State University. Don taught Chemistry at Northeastern Junior College, managed the Laboratory for ColoWyo and served as Chemistry Consultant. Don is survived by his spouse Margie M. Pings, his son Keith Pings and daughter-in-law Elizabeth Jelniker Pings of Thornton, CO, his son-in-law Robert Aaberg of Grand Junction, CO, as well as 5 grandchildren and 3 great-grandchildren. He is preceded in death by his daughter, Kathy Aaberg, father Marshall A. Pings, his mother Amy Jerrell Pings and his brother William E. Pings. No memorial services are planned. In lieu of flowers, the family requests donations be made to TRUCare.org Hospice in Louisville, CO.