Glenn County Lake Quality
California, 4 lakes, measured by SWRCB
Glenn County has 4 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 4 monitored lakes in Glenn 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 Glenn County
Planning a trip? Check special fishing regulations for Black Butte Lake — or check the official California fishing regulations.
All Lakes in Glenn County
4 lakes · 0 ranked on readings, 4 without enough sampling0 lakes ranked on readings · 4 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| Black Butte LakeGlenn | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public | |
| Packer LakeGlenn | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Shepard SloughGlenn | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Stony Gorge ReservoirGlenn | 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.