Hollybr Lake
Hollybr Lake in Lake County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 38.6 µg/L.
- Typical in September
- 83°F
- Trend
- ↑ Improving
- Public access
- Yes
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Why Hollybr 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 Hollybr Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded phosphorus, but not water clarity and 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.
Hollybr Lake is a lake in Lake County, Florida. Overall water quality is improving 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 2025-04-30. Grade methodology: LakeQuality methodology.
Watch Hollybr 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 Hollybr Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Phosphorus level: 38.6 µg/L. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 38.6 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Hollybr Lake
Compare lakeside cabins, hotels, and vacation rentals near Hollybr 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 Hollybr Lake
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Water Temperature
Hollybr Lake typically sits around 83°F at the surface in September. Usually warmest in Sep (about 83°F) and coldest in Feb (about 60°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 14 field readings (2010–2025) via the EPA Water Quality Portal. See the full Hollybr Lake water temperature breakdown →
Recreation & Access
- Lake Holly Public Boat RampPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Hollybr Lake
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | ↑ Improving | -2.27 µg/L/yr | 3 |
EPA Impairment Status
Hollybr 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 FL2803A · Official waterbody report · Matched by proximity (0.5 km)
Graded lakes near Hollybr Lake
Hollybr Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Lake County
Frequently asked questions about Hollybr Lake
Where is Hollybr Lake?
- Hollybr 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 Hollybr Lake?
- Hollybr Lake in Lake County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 38.6 µg/L.
Is Hollybr Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Hollybr Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
What is the water temperature of Hollybr Lake?
- Hollybr Lake typically sits around 83°F at the surface in September, from 14 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
Are there boat ramps on Hollybr Lake?
- Hollybr Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Holly Public Boat Ramp. Public access is listed as yes.
Explore Hollybr Lake across LakeQuality
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Where this data comes from
6 measurements from 1 monitoring station, 2023–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples6 samples · 2023–2025
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
Named boat-access points from the USGS National Boat Ramps inventory