2022-2023 Lower Columbia Basin Chapter Board Nominees


Mark Cranston, CSP, CHST, RS, works for WRPS. He has served as President, Vice-President, and Delegate for the Lower Columbia Basin Chapter of the American Society of Safety Professionals. He has worked at the Hanford site since 2002 as IHT, Safety Professional, IH and IHT supervisor. He has been a Professional member of ASSP since 2006. Mark is committed to providing an environment for growth, building relationships and creating a place of learning for the Lower Columbia Basin Chapter of ASSP.

Vice President

John W. Harris is a Senior Safety Professional with WRPS, a prime contractor for the DOE at the Hanford Site in Richland, WA and provides project Health and Safety support for cleanup efforts under the Tank Farms contract since September of 2013. John works with various operations groups, for supporting associated site facilities, including industrial hygienists, planners, fire protection, etc. John is part of the Hanford Emergency Response Organization holding training and experience as Chemical Hazard Assessor and ICP Hazards Communicator.

Previously with URS Corporation (now Amentum) he managed as a consultant on work within professional service contracts for private industry EH&S programs and for state and federal government concerning remediation, D&D, and emergency preparedness. He has experience with the design and implementation of health and safety programs for industrial services and environmental response action. He holds experience managing health and safety and construction quality assurance (CQA) programs during maintenance and repair of chemical processes and storage facilities; remedial investigation and construction including mitigation of contaminated groundwater and soils; and emergency response actions to industrial and transportation accidents involving hazardous substances and waste. Responsibilities included pre-construction development of health and safety plans incorporating required client requirements and standards of practice. In consultation with client officials and URS management he developed safety programs and plans to control and improve safety performance. He has conducted training for construction site safety and performed audits of worker performance regarding health and safety practices and adherence to site-specific programs (both URS and Client).

John has been a member of the Columbia River Basin Chapter of the ASSP since 2013, previously holding board member positions of Public Relations and Governmental Affairs. He has gained the Safety Trained Supervisor (STS) credential through the BCSP.

John and Joette Harris reside in Richland (south), WA presently, formerly from Pennsylvania, John graduated from the University of Clarion (Clarion, PA) with a Bachelor of Science in Biology in 1980.


Erin Davis, MS, CIH, CSP, works for CPCCo as a project Industrial Hygienist and Occupational Safety Professional. She current serves as Secretary of the Lower Columbia Basin Chapter of the American Society of Safety Professionals (LCB-ASSP).  She earned her Master of Science Industrial Hygiene from Montana Tech of the University of Montana in 2020, her CSP and CIH in 2021.

She is currently providing IH and safety support to Waste Project Operations on the Hanford Site. She has worked at the Hanford Site since September 2010.


Denise A. Pitts, MS, CIH, CSP, works for CPCCo on the Hanford Site as a project Industrial Hygienist and Occupational Safety Professional. She has served as President Elect, President, and Secretary of the Lower Columbia Basin Chapter of the American Society of Safety Professionals (LCB-ASSP) and is currently the Treasurer of LCB-ASSP. She is also a Past President and past Executive Secretary of the Pacific Northwest Section of the American Industrial Hygiene Association (PNS-AIHA).