Lake Willisara @ Center
Lake Willisara @ Center in Orange County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.5 ft visibility. Phosphorus: 44 µg/L.
- Clarity
- 2.5 ft
- Trend
- → Stable
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Why Lake Willisara @ Center 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 Willisara @ Center, 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.
Lake Willisara @ Center is a lake in Orange County, Florida. Water clarity is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2021-08-16. Grade methodology: LakeQuality methodology.
Watch Lake Willisara @ Center 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 Willisara @ Center
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 2.5 ft of visibility. Phosphorus level: 44 µg/L. Trophic State Index: 61.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 ft | Not graded |
| Phosphorus | 44 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 61 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Willisara @ Center
Compare lakeside cabins, hotels, and vacation rentals near Lake Willisara @ Center in Orange 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 Willisara @ Center
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Fishing Lake Willisara @ Center
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.165 m/yr | 5 |
| Phosphorus | ↑ Improving | -2.7 µg/L/yr | 5 |
EPA Impairment Status
Lake Willisara @ Center is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit FL3168Z · Official waterbody report · Matched by proximity (0.62 km)
Graded lakes near Lake Willisara @ Center
Lake Willisara @ Center has no grade, but these lakes within a short drive do.
Nearby Lakes in Orange County
Frequently asked questions about Lake Willisara @ Center
Where is Lake Willisara @ Center?
- Lake Willisara @ Center is a lake in Orange 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 Willisara @ Center?
- Lake Willisara @ Center in Orange County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.5 ft visibility. Phosphorus: 44 µg/L.
Is Lake Willisara @ Center safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Willisara @ Center 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 Willisara @ Center across LakeQuality
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Where this data comes from
12 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples12 samples · 2021
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