John Weston Klock,82, passed away on September 22, 2011. He is survived by a daughter, a son, two grandsons and two step-children. John received his undergraduate degree from USC and served in the Public Health Service before returning to school to receive his Masters degree and Ph.D. from the University of California, Berkeley. John accepted a professorship with ASU where he taught and did research for 30 years in his chosen field of Environmental Engineering.