Lake Billy Chinook is a highly nutrient-loaded hypereutrophic lake in Jefferson County, Oregon. Water quality is graded F based on 1 sampling years through 2021. Compared to the 14 other monitored lakes in Jefferson County, Lake Billy Chinook ranks #12 for water quality.
Source: EPA Water Quality Portal sampling records, Oregon DNR, last sampled 2021-10-20. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
No clarity data. Chlorophyll-a: 59.6 µg/L. Trophic State Index: 71.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 59.6 µg/L | F |
| Trophic State Index (TSI) | 71 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Lake Billy Chinook
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Fishing Lake Billy Chinook
Location
County Ranking
Ranked #12 of 15 lakes in Jefferson County
Cleaner Lakes Within 30 Miles
Lake Billy Chinook holds Grade F. 2 nearby lakes hold higher grades.
Nearby Lakes in Jefferson County
Explore Lake Billy Chinook across LakeGrade
More Oregon Lake Rankings
Other Grade F Lakes in Oregon
Hypereutrophic Lakes in Oregon
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: 2021-10-20
Monitoring stations: 1