Lake Lily
Lake Lily in Orange County, Florida has a water quality grade of B (Good). Water clarity: 5.9 ft visibility. Phosphorus: 38 µg/L.
- Clarity
- 5.9 ft
- Typical in August
- 88°F
- Type
- Eutrophic
- Trend
- ↓ Declining
- Public access
- Yes
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Lake Lily is a productive, nutrient-rich eutrophic lake in Orange County, Florida. Water quality is graded B based on 1 sampling years through 2025. 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 319 other monitored lakes in Orange County, Lake Lily ranks #248 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-09-22. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyBacteria A
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.
Based on E. coli testing, Lake Lily never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 44 samples across 4 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 Grade: B (Good)
Murky, only visible to about 5.9 ft. Phosphorus level: 38 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.9 ft | Not graded |
| Phosphorus | 38 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Lily
Compare lakeside cabins, hotels, and vacation rentals near Lake Lily 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 Lake Lily
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Planning a whole trip? See where to stay at Florida’s top lakes →
Water Temperature
Lake Lily typically sits around 88°F at the surface in August. Summer average is about 88°F. Usually warmest in Jul (about 88°F) and coldest in Jan (about 61°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 45 field readings (2022–2025) via the EPA Water Quality Portal. See the full Lake Lily water temperature breakdown →
Recreation & Access
- Fort Maitland Park Public Boat RampPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Lily
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.024 m/yr | 6 |
| Phosphorus | ↓ Declining | +1.39 µg/L/yr | 6 |
EPA Impairment Status
Lake Lily 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 FL2997U · Official waterbody report · Matched by proximity (0.86 km)
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Lake Lily under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger.
- Maitland, City OfMaitland · 0.3 mi away · NPDES FLS266825Major
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
County Ranking
Ranked #248 of 320 lakes in Orange County
Nearby Lakes in Orange County
Frequently asked questions about Lake Lily
Where is Lake Lily?
- Lake Lily is a lake in Orange County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Lily?
- Lake Lily in Orange County, Florida has a water quality grade of B (Good). Water clarity: 5.9 ft visibility. Phosphorus: 38 µg/L.
Is Lake Lily safe to swim in?
- Based on E. coli testing, Lake Lily never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 44 samples across 4 seasons. That works out to a bacteria swim-safety grade of A — a historical summary of past testing, not a current reading. Lake Lily has a water quality grade of B (Good). 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 Lake Lily?
- Lake Lily typically sits around 88°F at the surface in August, from 45 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 Lily?
- Lake Lily has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Fort Maitland Park Public Boat Ramp. Public access is listed as yes.
Explore Lake Lily across LakeQuality
Planning a trip around Canaveral?
Lake Lily is about 39 miles from Canaveral National Seashore. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Canaveral →More Florida Lake Rankings
Other Grade B Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
90 measurements from 2 monitoring stations, 2022–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples88 samples · 2022–2025
- Submitting organization not recorded for these samples2 samples · 2023
Monitoring station identifiers (2)
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Named boat-access points from the USGS National Boat Ramps inventory