Lake Billy Chinook Deschutes R Arm @ Floating Station
Jefferson County, OregonView mapDirections
This is the name Oregon DEQ records for this water. It can describe one sampling location rather than the water as a whole.
Oregon DEQ publishes the water-quality measurements for Lake Billy Chinook Deschutes R Arm @ Floating Station. Here is what has been measured.
- Eutrophic
- Impaired · Algal growth
- Limited data
Lake Billy Chinook Deschutes R Arm @ Floating Station in Jefferson County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Phosphorus: 35 µg/L. Chlorophyll-a (algae): 27.7 µg/L.
Lake Billy Chinook Deschutes R Arm @ Floating Station is a productive, nutrient-rich eutrophic lake in Jefferson County, Oregon. Overall water quality is improving over recent sampling years. Compared to the 13 other monitored lakes in Jefferson County, Lake Billy Chinook Deschutes R Arm @ Floating Station ranks #10 for water quality.
Source: EPA Water Quality Portal sampling records, Oregon DEQ, last sampled 2025-09-24. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Lake Billy Chinook Deschutes R Arm @ Floating Station is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, hydrologic alteration, pH / acidity. Check local advisories before you swim.
Whether Lake Billy Chinook Deschutes R Arm @ Floating Station 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.
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Water quality measurements for Lake Billy Chinook Deschutes R Arm @ Floating Station
These are the measurements Oregon DEQ publishes for Lake Billy Chinook Deschutes R Arm @ Floating Station, 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 35 µg/L. Chlorophyll-a 27.7 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 | 35µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 27.7µg/L | Poor GoodFairPoor |
| 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
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Answers come straight from the public measurements and survey records on this page.
→ Lake Billy Chinook Deschutes R Arm @ Floating Station water level: the live USGS gauge reading
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Stays near Lake Billy Chinook Deschutes R Arm @ Floating Station
Compare lakeside cabins, hotels, and vacation rentals near Lake Billy Chinook Deschutes R Arm @ Floating Station in Jefferson 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Lake Billy Chinook Deschutes R Arm @ Floating Station are listed below.
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Fishing Lake Billy Chinook Deschutes R Arm @ Floating Station
Water quality readings over time
3 seasons of samples on record (2021–2025). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving2 years
Phosphorus
Improving-2.5 µg/L/yr2 years
Chlorophyll-a
Worsening+2.63 µg/L/yr3 years
EPA Impairment Status
Lake Billy Chinook Deschutes R Arm @ Floating Station is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Other.
Source: EPA ATTAINS assessment unit OR_LK_1707030111_02_100151 · Official waterbody report
Nearby Lakes in Jefferson County
Frequently asked questions about Lake Billy Chinook Deschutes R Arm @ Floating Station
Where is Lake Billy Chinook Deschutes R Arm @ Floating Station?
- Lake Billy Chinook Deschutes R Arm @ Floating Station is in Jefferson County, Oregon. This is the name Oregon DEQ records for this water. It can describe one sampling location rather than the water as a whole. Its water-quality measurements are published by Oregon DEQ and shown on this page as reported.
What is the water quality of Lake Billy Chinook Deschutes R Arm @ Floating Station?
- Lake Billy Chinook Deschutes R Arm @ Floating Station in Jefferson County, Oregon has water-quality measurements published by Oregon DEQ, shown here as reported. Phosphorus: 35 µg/L. Chlorophyll-a (algae): 27.7 µg/L.
Is Lake Billy Chinook Deschutes R Arm @ Floating Station safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Billy Chinook Deschutes R Arm @ Floating Station is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, hydrologic alteration, pH / acidity. Check local advisories before you swim.
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Where this data comes from
772 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Department of Environmental Quality - State of Oregon
OREGONDEQ772 samples · 2025
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 10200 H ~ Chlorophyll a-b-c Determination
- YSI
- 2130 B ~ Nephelometric 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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database