Ellen Meyer is Product Safety and Government Affairs Manager with Lonza, a leading global supplier of pool chemicals. She has a Ph.D. in chemistry and has been working in water treatment for over 25 years. Ellen served on the MAHC Technical Review Committee for both the 2016 and 2018 editions as well as the MAHC writing committees for risk management and contamination burden. She is currently participating on the MAHC cyanuric acid ad hoc committee and the NSF task group for pool chemical evaluation.