Updated Aug 2026
Newfoundland and Labrador Lake Water Quality
Water-quality measurements for 17 lakes across 3 counties. None carries an A–F grade.
Grade Distribution
All 17 Newfoundland and Labrador lakes in the index: 0 (0.0%) carry an A–F grade and 17 (100.0%) are not rated, because no reference condition exists for lakes in this region, so the assessment thresholds behind the A–F scale cannot be applied here.
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All 17 Newfoundland and Labrador lakes in this index carry recent water-quality measurements from Environment and Climate Change Canada and the Newfoundland and Labrador Department of Environment and Climate Change, spread across 3 counties. None of them carries an A–F grade, because no reference condition exists for lakes in this region, so the assessment thresholds behind the A–F scale cannot be applied here.
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Source: Environment and Climate Change Canada and the Newfoundland and Labrador Department of Environment and Climate Change, not the EPA. See data sources.