Lassen County Lake Quality
California, 3 lakes — no lake here has enough monitoring data for a grade
Only 3 lakes in Lassen County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county.
The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Eagle Lake (—); the most-stressed is Eagle Lake (—).
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Quick Answers for Lassen County
Planning a trip? Check special fishing regulations for Eagle Lake — or check the official California fishing regulations.
All Lakes in Lassen County
3 lakes · 0 graded, 3 not rated0 graded lakes · 3 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| NREagle LakeLassen | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRHomer LakeLassen | NR | No recent samples | 5 µg/L | No recent samples | No recent samples | Not recorded | |
| NRHoney LakeLassen | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded |
NR = not rated: the monitoring record does not meet the evidence bar for a grade. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.
Lake Match
Which lake suits how you actually use one?
Six questions — swimming, fishing, quiet, cabins, drive time — and a shortlist of graded lakes that fit, with the water quality behind each one.
Other Counties in California
See how Lassen County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 49 states and 2 Canadian provinces.
Source: EPA National Aquatic Resource Surveys, 2026.