Mr. Parratt has extensive experience in surface-water and groundwater modeling of complex sites, including contaminated soils, earth-filled embankments, and fractured bedrock. He has evaluated and updated conceptual site models using physical-based flow & transport models. He has assessed the impacts of LNAPL, DNAPL and fractured bedrock on remedial designs including monitored natural attenuation. He has multiple years of experience in calculating the risk and uncertainty associated with the parameterization of boundary conditions and the effect on hydraulic gradients.

EDUCATION
  • PhD, Civil Engineering, University of Saskatchewan, Saskatoon, 2022
  • MScF, Natural Resources Management, Lakehead University, Thunder Bay, Ontario, 2012
  • B. Eng, Civil Engineering, McMaster University, Hamilton, Ontario, 2007
AREAS OF EXPERTISE
  • Conceptual Site Model Evaluation
  • Fate & Transport of Contaminants
  • Surface & Groundwater Interactions
  • Model Calibration & Validity
  • Degradation Rate Estimation
  • Density Dependent Flow (NAPL)
REPRESENTATIVE PROJECTS
Hanford Site Statistics and PHREEQC Geochemical Model2024-11-21T17:09:28+00:00

Hanford Site Statistics and PHREEQC Geochemical Model

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PUBLICATIONS & PRESENTATIONS

  • Parratt, T.M., 2017. Wintertime Infiltration and Snowmelt Processes of Black Spruce Peatlands in the Boreal Plain. Presentation at the National Groundwater Association Conference, Nashville, TN.

  • Cohen, H.A., T. Parratt, and C.B. Andrews, 2013. Comment on “Potential Contaminant Pathways from Hydraulically Fractured Shale to Aquifers.” Groundwater, v. 51, no. 3, pp. 317-319.

  • Parratt, T., 2013. Evaluating Risk and Uncertainty in Hydrological Models. Workshop Presentation at the International Statistics Conference, Polytechnic Institute of Chimorazo, Riobamba, Ecuador, April 22-26, 2013.

  • Parratt, T., 2012. Characteristics of Connectivity Between Harvested Landscapes and Fixed-Width Riparian Buffers. Master Thesis, Lakehead University.

  • Parratt, T., 2012. The Implications of LiDAR Flow-Path Buffer Metrics on Harvested Watersheds. Presentation at the ESRI Forestry GIS Conference, Redlands, CA, May 2, 2012.