Colusa County Lake Quality
California, 3 lakes, measured by SWRCB
Colusa County holds 3 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. The 3 monitored lakes in Colusa County carry whatever clarity, phosphorus, and chlorophyll-a readings SWRCB 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 Colusa County
Planning a trip? Check special fishing regulations for East Park Reservoir — or check the official California fishing regulations.
All Lakes in Colusa County
3 lakes · 0 ranked on readings, 3 without enough sampling0 lakes ranked on readings · 3 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| East Park ReservoirColusa | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Powell SloughColusa | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Upper Letts LakeColusa | No recent samples | No recent samples | No recent samples | 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 California State Water Resources Control Board. See data sources.