Amador County Lake Quality
California, 2 lakes — no lake here has enough monitoring data for a grade
Only 2 lakes in Amador 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 Pardee Reservoir A Vista Point (—); the most-stressed is Pardee Reservoir A Vista Point (—).
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Quick Answers for Amador County
Planning a trip? Check special fishing regulations for Pardee Reservoir A Vista Point — or check the official California fishing regulations.
All Lakes in Amador County
2 lakes · 0 graded, 2 not rated0 graded lakes · 2 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| NRPardee Reservoir A Vista PointAmador | NR | No recent samples | 4 µg/L | 0.8 µg/L | No recent samples | Not recorded | |
| NRPardee Reservoir North ArmAmador | NR | No recent samples | 4 µg/L | 0.8 µg/L | 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.
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Other Counties in California
See how Amador 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.