Nellienesh Lake
Nellienesh Lake in Lake County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.5 ft visibility. Phosphorus: 27.6 µg/L.
- Clarity
- 6.5 ft
- Trend
- ↑ Improving
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Why Nellienesh 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 Nellienesh Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity and phosphorus, but not algae (chlorophyll-a).
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.
Nellienesh Lake is a lake in Lake County, Florida. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-03-26. Grade methodology: LakeQuality methodology.
Watch Nellienesh Lake 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 Nellienesh Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 6.5 ft. Phosphorus level: 27.6 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.5 ft | Not graded |
| Phosphorus | 27.6 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Nellienesh Lake
Compare lakeside cabins, hotels, and vacation rentals near Nellienesh Lake in Lake 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 Nellienesh Lake
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Fishing Nellienesh Lake
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.048 m/yr | 5 |
| Phosphorus | ↑ Improving | -4.07 µg/L/yr | 5 |
EPA Impairment Status
Nellienesh Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL2880A · Official waterbody report · Matched by proximity (2.44 km)
Graded lakes near Nellienesh Lake
Nellienesh Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Lake County
Frequently asked questions about Nellienesh Lake
Where is Nellienesh Lake?
- Nellienesh Lake is a lake in Lake 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 Nellienesh Lake?
- Nellienesh Lake in Lake County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.5 ft visibility. Phosphorus: 27.6 µg/L.
Is Nellienesh Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Nellienesh 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 Nellienesh Lake across LakeQuality
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Where this data comes from
7 measurements from 1 monitoring station, 2024–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples7 samples · 2024–2025
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
Impairment status from EPA ATTAINS 303(d) database