Updated Aug 2026
British Columbia Lake Water Quality
Water-quality measurements for 150 lakes across 65 counties. None carries an A–F grade.
Grade Distribution
All 150 British Columbia lakes in the index: 0 (0.0%) carry an A–F grade and 150 (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 150 British Columbia lakes in this index carry recent water-quality measurements from the British Columbia Ministry of Environment and Parks, spread across 65 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.
Lake Match
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Source: the British Columbia Ministry of Environment and Parks, not the EPA. See data sources.