Iamoniaref Lake
Leon County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Iamoniaref Lake. Here is what has been measured.
- Impaired · Mercury
- Limited data
Iamoniaref Lake in Leon County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Phosphorus: 21.5 µg/L.
Iamoniaref Lake is a lake in Leon County, Florida. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2022-08-09. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Iamoniaref Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, oxygen depletion (low DO), pH / acidity. Check local advisories before you swim.
Whether Iamoniaref Lake is safe to swim in today is a call for the Florida Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Iamoniaref Lake
These are the measurements Florida DEP publishes for Iamoniaref Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 21.5 µg/L. TSI 48.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 21.5µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 48 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Iamoniaref Lake
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Iamoniaref Lake
Compare lakeside cabins, hotels, and vacation rentals near Iamoniaref Lake in Leon 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 Iamoniaref Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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 →
Follow Iamoniaref Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Iamoniaref Lake
Water Quality Trend: Improving
Based on 5 years of monitoring (2020–2024).
Water clarity
Improving5 years
Phosphorus
Stable+0.4 µg/L/yr5 years
EPA Impairment Status
Iamoniaref Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Aquatic life, Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL442 · Official waterbody report
Nearby Lakes in Leon County
Frequently asked questions about Iamoniaref Lake
Where is Iamoniaref Lake?
- Iamoniaref Lake is a lake in Leon County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Iamoniaref Lake?
- Iamoniaref Lake in Leon County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Phosphorus: 21.5 µg/L.
Is Iamoniaref Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Iamoniaref Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, oxygen depletion (low DO), pH / acidity. Check local advisories before you swim.
Explore Iamoniaref Lake across LakeQuality
More lakes in Florida
Other Lakes in Florida
Gadsden County · Measured
Gadsden County · Measured
Gadsden County · Measured
Jefferson County · Measured
Jefferson County · 2.5 ft
Gadsden County · 1.6 ft
Mesotrophic Lakes in Florida
Where this data comes from
2 measurements from 1 monitoring station, 2021–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples2 samples · 2021–2022
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database