Scout Lake
Columbia County, OregonView mapDirections
Oregon DEQ publishes the water-quality measurements for Scout Lake. Here is what has been measured.
- Limited data
Scout Lake in Columbia County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Phosphorus: 45 µg/L.
Scout Lake is a lake in Columbia County, Oregon.
Source: EPA Water Quality Portal sampling records, Oregon DEQ, last sampled 2022-08-22. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Scout Lake is safe to swim in today is a call for the Oregon Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Scout Lake
These are the measurements Oregon DEQ publishes for Scout Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 45 µg/L. TSI 59.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 45µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 59 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Scout Lake
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Scout Lake
Compare lakeside cabins, hotels, and vacation rentals near Scout Lake in Columbia County, Oregon — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Scout Lake
Prices for Nov 6–8, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Oregon’s top lakes →
Follow Scout Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Scout Lake
Nearby Lakes in Columbia County
Frequently asked questions about Scout Lake
Where is Scout Lake?
- Scout Lake is a lake in Columbia County, Oregon. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.
What is the water quality of Scout Lake?
- Scout Lake in Columbia County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Phosphorus: 45 µg/L.
Is Scout Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Scout Lake across LakeQuality
More lakes in Oregon
Other Lakes in Oregon
Eutrophic Lakes in Oregon
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)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.