Lake-Emma
Lake-Emma in Lake County, Florida has a water quality grade of B (Good). Water clarity: 6.5 ft visibility. Phosphorus: 12 µg/L.
- Clarity
- 6.5 ft
- Type
- Mesotrophic
- Trend
- → Stable
Next lake in Lake County
Swipe left or right on this bar to open the next or previous lake.
Lake-Emma is a mesotrophic lake in Lake County, Florida. Water quality is graded B based on 1 sampling years through 2025. Water clarity is improving over recent sampling years. Compared to the 127 other monitored lakes in Lake County, Lake-Emma ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-01-18. Grade methodology: LakeQuality methodology.
Watch Lake-Emma water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
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 6.5 ft. Phosphorus level: 12 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.5 ft | Not graded |
| Phosphorus | 12 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lake-Emma
Compare lakeside cabins, hotels, and vacation rentals near Lake-Emma 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 Lake-Emma
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Florida’s top lakes →
Fishing Lake-Emma
Water Quality Trend: → Stable
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.065 m/yr | 6 |
| Phosphorus | ↓ Declining | +1.06 µg/L/yr | 6 |
EPA Impairment Status
Lake-Emma 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 FL2839F · Official waterbody report
County Ranking
Ranked #1 of 128 lakes in Lake County
Nearby Lakes in Lake County
Frequently asked questions about Lake-Emma
Where is Lake-Emma?
- Lake-Emma is a lake in Lake County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake-Emma?
- Lake-Emma in Lake County, Florida has a water quality grade of B (Good). Water clarity: 6.5 ft visibility. Phosphorus: 12 µg/L.
Is Lake-Emma safe to swim in?
- Good for swimming, clear water with low algae levels. Lake-Emma has a water quality grade of B (Good). Always check local health department advisories before swimming.
Explore Lake-Emma across LakeQuality
More Florida Lake Rankings
Other Grade B Lakes in Florida
Mesotrophic Lakes in Florida
Where this data comes from
108 measurements from 3 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX108 samples · 2020–2025
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