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Jefferson S. Ketchel, R.S.

Health & Environmental Investigator III

Local Hazardous Waste Management Program

Public Health – Seattle & King County

Seattle, WA 98104-4039


Jefferson Ketchel, RS, is currently the interim operations supervisor for the Local Hazardous Waste Management Program in the Environmental Health Division at Public Health - Seattle & King County (PHSKC).


Mr. Ketchel holds a Bachelors of Science in Biology with a Minor in Chemistry from Central Washington University. He is currently pursuing his Masters of Arts in Policy Studies at the University of Washington.


For the past twelve years, Mr. Ketchel has been employed at PHSKC being fortunate in having diverse experiences while working in most of the available programs including: food safety, water recreation, onsite sewage, chemical/physical hazards, plumbing, vector/nuisance and hazardous waste.

Leadership Development Opportunities

The EPHLI experience has changed the course of my Environmental Public Health career. For years I have been focused on local issues and views, unconnected with the larger, national perspective. This fellowship has built bridges for me, not only to wonderfully inspiring colleagues from around the country, but to the national role of the CDC in local Environmental Public Health.


EPHLI has taught me how to think differently about solutions and challenges, looking at causality and root problems instead of reaction based activities and the status quo. I am proud to be a member of this fellowship and I hold a deep appreciation to those who invited me into this arena and pushed me along this past year. The lessons and ideas learned here shall carry me where I now want to go, and the friends I have made will always be my network of peers, ideas and Environmental Public Health dreams.