State Dwr-Oaks Arm of Clear Lake
Lake County, CaliforniaView mapDirections
SWRCB publishes the water-quality measurements for State Dwr-Oaks Arm of Clear Lake. Here is what has been measured.
- Limited data
State Dwr-Oaks Arm of Clear Lake in Lake County, California has water-quality measurements published by SWRCB, shown here as reported. Water clarity: 36.7 ft visibility.
State Dwr-Oaks Arm of Clear Lake is a lake in Lake County, California.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-06-16. Methodology: how these readings are compared.
What State Dwr-Oaks Arm of Clear Lake is good for
From access and monitoring records, not editorial picks.
- Clear water36.7 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether State Dwr-Oaks Arm of Clear Lake is safe to swim in today is a call for the California State Water Resources Control Board and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for State Dwr-Oaks Arm of Clear Lake
These are the measurements SWRCB publishes for State Dwr-Oaks Arm of Clear Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 36.7 ft down. TSI 25.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 36.7ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading 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. | 25 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
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Answers come straight from the public measurements and survey records on this page.
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Frequently asked questions about State Dwr-Oaks Arm of Clear Lake
Where is State Dwr-Oaks Arm of Clear Lake?
- State Dwr-Oaks Arm of Clear Lake is a lake in Lake County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.
What is the water quality of State Dwr-Oaks Arm of Clear Lake?
- State Dwr-Oaks Arm of Clear Lake in Lake County, California has water-quality measurements published by SWRCB, shown here as reported. Water clarity: 36.7 ft visibility.
Is State Dwr-Oaks Arm of Clear Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore State Dwr-Oaks Arm of Clear Lake across LakeQuality
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Where this data comes from
8 measurements from 1 monitoring station, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- Big Valley Band of Pomo Indians of the Big Valley Rancheria, California (Tribal)
CA_BVR8 samples · 2020–2021
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.