Lake Viola
Lake Viola in Highlands County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar.
- Trend
- ↓ Declining
- Public access
- Yes
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Why Lake Viola 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 Viola, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
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 Viola is a lake in Highlands County, Florida. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2023-03-16. Grade methodology: LakeQuality methodology.
Watch Lake Viola water quality
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lake Viola
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Where to stay near Lake Viola
Compare lakeside cabins, hotels, and vacation rentals near Lake Viola in Highlands 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 Viola
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Recreation & Access
- Lake Viola Public Boat RampPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Viola
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.65 m/yr | 5 |
| Phosphorus | ↓ Declining | +1.8 µg/L/yr | 5 |
Graded lakes near Lake Viola
Lake Viola has no grade, but these lakes within a short drive do.
Nearby Lakes in Highlands County
Frequently asked questions about Lake Viola
Where is Lake Viola?
- Lake Viola is a lake in Highlands County, Florida. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Lake Viola?
- Lake Viola in Highlands County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar.
Is Lake Viola safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Viola is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Are there boat ramps on Lake Viola?
- Lake Viola has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Viola Public Boat Ramp. Public access is listed as yes.
Explore Lake Viola across LakeQuality
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Where this data comes from
3 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples3 samples · 2023
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory