Mud Lake
Mud Lake in Orange County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.5 ft visibility.
- Clarity
- 2.5 ft
- Typical in August
- 86°F
- Max depth
- ~34 ft est.
Next lake in Orange County
Swipe left or right on this bar to open the next or previous lake.
Why Mud Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Mud Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by FDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Mud Lake is a lake in Orange County, Florida with an estimated average depth of about 34 feet.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2021-06-17. Grade methodology: LakeQuality methodology.
Watch Mud Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedBacteria A
Based on E. coli testing, Mud Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 8 samples across 2 seasons.
This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Florida’s current beach and health-department advisories before swimming.
Water quality measurements for Mud Lake
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 2.5 ft of visibility. Trophic State Index: 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Mud Lake
Compare lakeside cabins, hotels, and vacation rentals near Mud Lake in Orange 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 Mud Lake
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 →
Water Temperature
Mud Lake typically sits around 86°F at the surface in August. Summer average is about 86°F. Usually warmest in Aug (about 86°F) and coldest in Dec (about 68°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 64 field readings (2010–2021) via the EPA Water Quality Portal. See the full Mud Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~34 ft est. |
| Average Depth | ~10 ft est. |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Florida has not published bathymetry for Mud Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Fishing Mud Lake
EPA Impairment Status
Mud Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4C).
Causes of impairment
Source: EPA ATTAINS assessment unit FL3171D · Official waterbody report · Matched by proximity (2.9 km)
Graded lakes near Mud Lake
Mud Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Orange County
Frequently asked questions about Mud Lake
Where is Mud Lake?
- Mud Lake is a lake in Orange County, Florida. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Mud Lake?
- Mud Lake in Orange County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 2.5 ft visibility.
Is Mud Lake safe to swim in?
- Based on E. coli testing, Mud Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 8 samples across 2 seasons. That works out to a bacteria swim-safety grade of A — a historical summary of past testing, not a current reading. Mud Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Bacteria levels can spike quickly after heavy rain, so always check Florida's current beach and health-department advisories before you swim.
What is the water temperature of Mud Lake?
- Mud Lake typically sits around 86°F at the surface in August, from 64 EPA Water Quality Portal field readings (2010–2021). That is a typical value for the month, not a live reading.
How deep is Mud Lake?
- No published bathymetric survey covers Mud Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 34 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Explore Mud Lake across LakeQuality
More Florida Lake Rankings
Other Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
1 measurement from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples1 sample · 2021
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
Lake size & watershed from HydroLAKES (HydroSHEDS)