Irma Lake
Irma Lake in Orange County, Florida has a water quality grade of B (Good). Water clarity: 6.6 ft visibility. Phosphorus: 16.5 µg/L.
- Clarity
- 6.6 ft
- Type
- Mesotrophic
- Trend
- ↓ Declining
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Irma Lake is a mesotrophic lake in Orange County, Florida. Water quality is graded B based on 1 sampling years through 2025. Overall water quality is declining over recent sampling years. Compared to the 319 other monitored lakes in Orange County, Irma Lake ranks #160 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-02-10. Grade methodology: LakeQuality methodology.
Watch Irma Lake water quality
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Swimming Safety
Grade onlyLow algae
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Good for swimming, clear water with low algae levels
Water Quality Grade: B (Good)
Murky, only visible to about 6.6 ft. Phosphorus level: 16.5 µg/L. Trophic State Index: 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.6 ft | Not graded |
| Phosphorus | 16.5 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Irma Lake
Compare lakeside cabins, hotels, and vacation rentals near Irma Lake 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 Irma Lake
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Planning a whole trip? See where to stay at Florida’s top lakes →
Fishing Irma Lake
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | 0 m/yr | 5 |
| Phosphorus | ↓ Declining | +1.7 µg/L/yr | 5 |
EPA Impairment Status
Irma Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4C).
Causes of impairment
Source: EPA ATTAINS assessment unit FL3017 · Official waterbody report
County Ranking
Ranked #160 of 320 lakes in Orange County
Nearby Lakes in Orange County
Frequently asked questions about Irma Lake
Where is Irma Lake?
- Irma Lake is a lake in Orange County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Irma Lake?
- Irma Lake in Orange County, Florida has a water quality grade of B (Good). Water clarity: 6.6 ft visibility. Phosphorus: 16.5 µg/L.
Is Irma Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Irma Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
Explore Irma Lake across LakeQuality
Planning a trip around Canaveral?
Irma Lake is about 34 miles from Canaveral National Seashore. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Canaveral →More Florida Lake Rankings
Other Grade B Lakes in Florida
Mesotrophic Lakes in Florida
Where this data comes from
68 measurements from 3 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples64 samples · 2020–2025
- Submitting organization not recorded for these samples4 samples · 2024–2025
Monitoring station identifiers (3)
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