Lake Marian Pavilion
Lake Marian Pavilion in Osceola County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 0.8 ft visibility. Phosphorus: 185 µg/L.
- Clarity
- 0.8 ft
- Typical in August
- 86°F
- Type
- Hypereutrophic
- Trend
- ↓ Declining
- Public access
- Yes
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Lake Marian Pavilion →
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Lake Marian Pavilion is a highly nutrient-loaded hypereutrophic lake in Osceola County, Florida. Water quality is graded D based on 1 sampling years through 2022. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 30 other monitored lakes in Osceola County, Lake Marian Pavilion ranks #31 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2022-10-31. 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.
Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum
Water Quality Grade: D (Nutrient-rich)
Very murky, less than 0.8 ft of visibility. Phosphorus level: 185 µg/L. Trophic State Index: 80.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.8 ft | Not graded |
| Phosphorus | 185 µg/L | Poor |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 80 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Lake Marian Pavilion
Compare lakeside cabins, hotels, and vacation rentals near Lake Marian Pavilion in Osceola 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 grade measures nutrients and algae, not lodging — cabins and rentals around Lake Marian Pavilion are listed below.
Top-rated places to stay near Lake Marian Pavilion
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Planning a whole trip? See where to stay at Florida’s top lakes →
Water Temperature
Lake Marian Pavilion typically sits around 86°F at the surface in August. Summer average is about 85°F. Usually warmest in Jul (about 86°F) and coldest in Jan (about 66°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 63 field readings (2022–2025) via the EPA Water Quality Portal. See the full Lake Marian Pavilion water temperature breakdown →
Recreation & Access
- Lake Marian Public Boat Ramp (Fred's Fish Camp)Public
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Marian Pavilion
Water Quality Trend: ↓ Declining
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.005 m/yr | 4 |
| Phosphorus | ↓ Declining | +4 µg/L/yr | 4 |
EPA Impairment Status
Lake Marian Pavilion is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit FL3184A · Official waterbody report · Matched by proximity (0.93 km)
County Ranking
Ranked #31 of 31 lakes in Osceola County
Nearby Lakes in Osceola County
Frequently asked questions about Lake Marian Pavilion
Where is Lake Marian Pavilion?
- Lake Marian Pavilion is a lake in Osceola County, Florida. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Marian Pavilion?
- Lake Marian Pavilion in Osceola County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 0.8 ft visibility. Phosphorus: 185 µg/L.
Is Lake Marian Pavilion safe to swim in?
- Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum. Lake Marian Pavilion has a water quality grade of D (Nutrient-rich). Always check local health department advisories before swimming.
What is the water temperature of Lake Marian Pavilion?
- Lake Marian Pavilion typically sits around 86°F at the surface in August, from 63 EPA Water Quality Portal field readings (2022–2025). That is a typical value for the month, not a live reading.
Are there boat ramps on Lake Marian Pavilion?
- Lake Marian Pavilion has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Marian Public Boat Ramp (Fred's Fish Camp). Public access is listed as yes.
Explore Lake Marian Pavilion across LakeQuality
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Hypereutrophic Lakes in Florida
Where this data comes from
18 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples18 samples · 2022
Monitoring station identifiers (1)
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
Named boat-access points from the USGS National Boat Ramps inventory