Pasisades Reservoir is a mesotrophic lake in Bonneville County, Idaho. Water quality is graded A based on 3 sampling years through 2023. Compared to the 6 other monitored lakes in Bonneville County, Pasisades Reservoir ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Idaho DNR, last sampled 2023-06-29. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 10.5 ft. Phosphorus level: 15 µg/L. Chlorophyll-a: 2.9 µg/L. Trophic State Index: 42.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.5 ft | B |
| Phosphorus | 15 µg/L | A |
| Chlorophyll-a (Algae) | 2.9 µg/L | A |
| Trophic State Index (TSI) | 42 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Pasisades Reservoir
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Fishing Pasisades Reservoir
Location
County Ranking
Ranked #2 of 7 lakes in Bonneville County
Nearby Lakes in Bonneville County
Explore Pasisades Reservoir across LakeGrade
More Idaho Lake Rankings
Other Grade A Lakes in Idaho
Mesotrophic Lakes in Idaho
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-06-29
Monitoring stations: 1