Marion-Eaton Lake
Marion County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Marion-Eaton Lake. Here is what has been measured.
- Hypereutrophic
- Impaired · Impaired biota (cause unknown)
- Public access
- Limited data
Marion-Eaton Lake in Marion County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 0.8 ft visibility. Phosphorus: 81 µg/L.
Marion-Eaton Lake is a highly nutrient-loaded hypereutrophic lake in Marion County, Florida. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 17 other monitored lakes in Marion County, Marion-Eaton Lake ranks #17 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2021-10-19. Methodology: how these readings are compared.
What Marion-Eaton Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
- Camping1 public campground nearby
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Marion-Eaton Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), mercury. Check local advisories before you swim.
Whether Marion-Eaton 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 Marion-Eaton Lake
These are the measurements Florida DEP publishes for Marion-Eaton Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 0.8 ft of visibility. Phosphorus 81 µg/L. TSI 74.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 0.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 81µg/L | Poor GoodFairPoor |
| 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. | 74 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Marion-Eaton Lake
Answers come straight from the public measurements and survey records on this page.
Recreation & Access
- Ocala National Forest Campround Ramp and PierPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near Marion-Eaton Lake
- Lake Eaton0.6 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Stays via Stay22
Stays near Marion-Eaton Lake
Compare lakeside cabins, hotels, and vacation rentals near Marion-Eaton Lake in Marion 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Marion-Eaton Lake are listed below.
Top-rated places to stay near Marion-Eaton Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Fishing Marion-Eaton Lake
Water quality readings over time
3 seasons of samples on record (2021–2024). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving3 years
Phosphorus
Improving-16.18 µg/L/yr3 years
EPA Impairment Status
Marion-Eaton Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
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 FL2771A · Official waterbody report
Nearby Lakes in Marion County
Frequently asked questions about Marion-Eaton Lake
Where is Marion-Eaton Lake?
- Marion-Eaton Lake is a lake in Marion County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Marion-Eaton Lake?
- Marion-Eaton Lake in Marion County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 0.8 ft visibility. Phosphorus: 81 µg/L.
Is Marion-Eaton Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Marion-Eaton Lake is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown), mercury. Check local advisories before you swim.
Are there boat ramps on Marion-Eaton Lake?
- Marion-Eaton Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Ocala National Forest Campround Ramp and Pier. Public access is listed as yes.
Can I fish at Marion-Eaton Lake?
- Marion-Eaton Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Florida's fish and wildlife agency, so check its current regulations before you go.
Are there campgrounds on Marion-Eaton Lake?
- Marion-Eaton Lake has 1 public campground from USGS The National Map within 5 km, including Lake Eaton. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore Marion-Eaton Lake across LakeQuality
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Where this data comes from
36 measurements from 3 monitoring stations, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX36 samples · 2020–2021
Monitoring station identifiers (3)
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
Named boat-access points from the USGS National Boat Ramps inventory
Public campgrounds from USGS The National Map Structures, within about 3 miles