Regulatory Approval of Risk Tools Shallow Groundwater Guidelines to Protect Underlying DUA

Millennium EMS Solutions

September 2022




This report uses a numerical modelling approach to investigate whether a conservative generic “dilution factor” DF can be developed to calculate conservative groundwater guidelines for shallow non-DUA groundwater protective of an underlying DUA. The dilution factors developed using the numerical modelling approach are compared to dilution factors implied by use of the subsoil salinity tool (SST) under similar circumstances. In this report, the Alberta regulatory framework is used as a starting point, but approaches used in other Canadian jurisdictions are also explored for comparison purposes.


Full Report

Report Body