Lake Ruby
Lake Ruby in Polk County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 261 acres.
- Area
- 261 acres
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Why Lake Ruby 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 Lake Ruby, 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 FDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Ruby is a 261-acre lake in Polk County, Florida.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Lake Ruby 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 Lake Ruby
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 Lake Ruby
Compare lakeside cabins, hotels, and vacation rentals near Lake Ruby in Polk County, Florida — 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 Lake Ruby
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 261 acres |
No bathymetric survey has been published for Lake Ruby, so its depth is not documented here.
Fishing Lake Ruby
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Frequently asked questions about Lake Ruby
Where is Lake Ruby?
- Lake Ruby is a lake in Polk County, Florida. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Lake Ruby?
- Lake Ruby in Polk County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 261 acres.
Is Lake Ruby safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Ruby is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Lake Ruby across LakeQuality
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Where this data comes from
Measurements for Lake Ruby come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.