Ruby Lake
Ruby Lake in Inyo County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 36 acres.
- Area
- 36 acres
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Why Ruby Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Ruby Lake, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Ruby Lake is a 36-acre lake in Inyo County, California.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Ruby Lake water quality
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Ruby Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Ruby Lake
Compare lakeside cabins, hotels, and vacation rentals near Ruby Lake in Inyo County, California — 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 Ruby Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 36 acres |
No bathymetric survey has been published for Ruby Lake, so its depth is not documented here.
Fishing Ruby Lake
Nearby Lakes in Inyo County
Frequently asked questions about Ruby Lake
Where is Ruby Lake?
- Ruby Lake is a lake in Inyo County, California. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Ruby Lake?
- Ruby Lake in Inyo County, California is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 36 acres.
Is Ruby Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Ruby Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Ruby Lake across LakeQuality
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Where this data comes from
Measurements for Ruby Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.