Canadian Water Quality Guidelines. Prepared for the CCME Subcommittee on Environmental Quality Criteria for Contaminated sites. Guidelines for heavy metals and trace ions are reported as total concentrations in an unfiltered sample. Guideline varies with pH, calcium, and dissolved organic carbon concentrations. Guideline changes with temperature and pH. 5.
Guideline changes with hardness.
Avoid concentrations that stimulate prolific weed growth. Return to Main Page.