Name: Ivy YuXia Liu, MSc, P.Geo., QPRA
Title: Manager, Environmental Risk Assessment
Phone: (613) 745 -6471 x 347
Email: i.liu@terrapex.com
As Manager of Risk Assessment at Terrapex, Ivy leads the firm’s risk assessment business unit. She is responsible for setting technical standards, overseeing complex risk assessment projects, and supporting the growth and strategic direction of both the risk assessment group and broader environmental service line.
Since beginning her professional career in 2009, Ivy has completed numerous risk assessments of varying complexity for a wide range of purposes, conducted under Ontario Regulation 153/04 and the Federal Contaminated Sites Action Plan (FCSAP) framework, in both urban and remote environments across Canada. She is proficient in all components of human health and ecological risk assessments – problem formulation, exposure assessment, toxicity/hazard assessment, risk characterization, and site-specific target level estimate. In addition to her risk assessment work, Ivy is knowledgeable in Phase One and Two Environmental Site Assessment. Her expertise also includes data gap analysis and the design of comprehensive site investigation plans that incorporate multiline evidence in support of a detailed quantitative risk assessment. She also has extensive experience collaborating with multidisciplinary project teams in support of major public transit infrastructure projects, applying risk assessment approaches tailored to site-specific construction requirements. Ivy is also proficient in deriving risk based benchmarks through toxicology literature reviews to support regulatory approval processes.
Ivy holds a BSc Honors degree in Environmental Science specialized in environmental toxicology and geochemistry and a M.Sc. degree in Earth Science specialized in environmental toxicology and microbiology from the University of Ottawa. She is a professional geoscientist (P.Geo.) in Ontario and is recognized by the Ontario Ministry of the Environment, Conservation and Parks as a Qualified Person for Risk Assessment (QPRA ) under Ontario Regulation 153/04.