Mckethan Lake
Mckethan Lake in Hernando County, Florida has a water quality grade of C (Fair). Water clarity: 3.3 ft visibility. Phosphorus: 52 µg/L.
- Clarity
- 3.3 ft
- Typical in October
- 81°F
- Type
- Eutrophic
- Trend
- ↓ Declining
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Mckethan Lake is a productive, nutrient-rich eutrophic lake in Hernando County, Florida. Water quality is graded C based on 1 sampling years through 2023. Overall water quality is declining over recent sampling years. Compared to the 8 other monitored lakes in Hernando County, Mckethan Lake ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2023-12-18. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyLimited data
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.
Generally safe for swimming, moderate water quality
Water Quality Grade: C (Fair)
Very murky, less than 3.3 ft of visibility. Phosphorus level: 52 µg/L. Trophic State Index: 61.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.3 ft | Not graded |
| Phosphorus | 52 µg/L | Fair |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 61 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Mckethan Lake
Compare lakeside cabins, hotels, and vacation rentals near Mckethan Lake in Hernando 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 Mckethan Lake
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Water Temperature
Mckethan Lake typically sits around 81°F at the surface in October. Usually warmest in Mar (about 81°F) and coldest in Jan (about 62°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 23 field readings (2014–2021) via the EPA Water Quality Portal. See the full Mckethan Lake water temperature breakdown →
Fishing Mckethan Lake
Water Quality Trend: ↓ Declining
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.23 m/yr | 4 |
| Phosphorus | ↓ Declining | +31.4 µg/L/yr | 4 |
County Ranking
Ranked #4 of 9 lakes in Hernando County
Nearby Lakes With Higher Grades
Mckethan Lake holds Grade C. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.
Nearby Lakes in Hernando County
Frequently asked questions about Mckethan Lake
Where is Mckethan Lake?
- Mckethan Lake is a lake in Hernando County, Florida. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Mckethan Lake?
- Mckethan Lake in Hernando County, Florida has a water quality grade of C (Fair). Water clarity: 3.3 ft visibility. Phosphorus: 52 µg/L.
Is Mckethan Lake safe to swim in?
- Generally safe for swimming, moderate water quality. Mckethan Lake has a water quality grade of C (Fair). Always check local health department advisories before swimming.
What is the water temperature of Mckethan Lake?
- Mckethan Lake typically sits around 81°F at the surface in October, from 23 EPA Water Quality Portal field readings (2014–2021). That is a typical value for the month, not a live reading.
Explore Mckethan Lake across LakeQuality
More Florida Lake Rankings
Other Grade C Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
42 measurements from 3 monitoring stations, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples42 samples · 2020–2023
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.