Cowichan County Lake Quality
British Columbia, 5 lakes, measured by ENV
Cowichan County has 5 monitored lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. The 5 monitored lakes in Cowichan County carry whatever clarity, phosphorus, and chlorophyll-a readings ENV has published, shown as reported.
Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.
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Quick Answers for Cowichan County
Planning a trip? Check special fishing regulations for Quamichan Lake — or check the official British Columbia fishing regulations.
All Lakes in Cowichan County
5 lakes · 0 ranked on readings, 5 without enough sampling0 lakes ranked on readings · 5 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Quamichan LakeCowichan | 5.6 ft | 248 µg/L | 46.7 µg/L | No recent samples | Not recorded | |
| Cowichan LakeCowichan | 36.4 ft | 2.8 µg/L | 0.6 µg/L | No recent samples | Not recorded | |
| Somenos LakeCowichan | No recent samples | 105.5 µg/L | No recent samples | No recent samples | Not recorded | |
| Quennell LakeCowichan | 4.8 ft | 61.9 µg/L | 23.3 µg/L | No recent samples | Not recorded | |
| Michael LakeCowichan | 2.6 ft | 11.5 µg/L | 45.2 µg/L | No recent samples | Not recorded |
NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.
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Source: the British Columbia Ministry of Environment and Parks. See data sources.