How appropriate are Canadian Water Quality Guidelines for protecting freshwater aquatic life from toxic chemicals in naturally-discharging groundwater?

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Acknowledgements

Thanks go to Sara Witzke (student placement at Environment and Climate Change Canada), who assisted with assembling the data for Table 1, and Chris Allaway, Tamzin El-Fityani, Philippa Cureton, Doug Spry and colleagues of the National Guidelines and Standards Office, Environment and Climate Change Canada, who provided insightful comments during manuscript preparation. Constructive comments from 2 anonymous reviewers are also appreciated.