Columbia County, Oregon · Water Quality Report Card
Scout Lake
Scout Lake in Columbia County, Oregon is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 45 µg/L.
- Type
- Eutrophic
Scout Lake is a productive, nutrient-rich eutrophic lake in Columbia County, Oregon.
Source: EPA Water Quality Portal sampling records, Oregon DEQ, last sampled 2022-08-22. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not rated for swimming — there is not enough monitoring data to judge this lake
Water Quality Grade: Not rated
No clarity data. Phosphorus level: 45 µg/L. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 45 µg/L | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Scout Lake
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Fishing Scout Lake
Location
Nearby Lakes in Columbia County
Explore Scout Lake across LakeGrade
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Other Lakes in Oregon
Eutrophic Lakes in Oregon
More records, surveys & data sources
Where this data comes from
2 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Department of Environmental Quality - State of Oregon
OREGONDEQ2 samples · 2022
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
Monitoring station identifiers (1)
Grade thresholds come from the U.S. EPA National Lakes Assessment 2022 Technical Support Document (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2022-08-22
Monitoring stations: 1