Seminole-Queens Mirror Lake
Seminole County, FloridaEutrophic
Seminole-Queens Mirror Lake is a productive, nutrient-rich eutrophic lake in Seminole County, Florida. Water quality is graded C based on 2 sampling years through 2025. Compared to the 167 other monitored lakes in Seminole County, Seminole-Queens Mirror Lake ranks #111 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-04-13. Grade methodology: LakeGrade methodology.
Watch Seminole-Queens Mirror Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Very murky, less than 3 ft of visibility. Phosphorus level: 41 µg/L. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 ft | D |
| Phosphorus | 41 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #111 of 168 lakes in Seminole County
Cleaner Lakes Within 30 Miles
Seminole-Queens Mirror Lake holds Grade C. 2 nearby lakes hold higher grades.
- ASeminole-Crystal Bowl LakeSeminole County · 0.5 mi · Two grade letters higher (C → A)
- BCrystal Bowl LakeSeminole County · 0.5 mi · Higher grade (C → B)
Nearby Lakes in Seminole County
More Florida Lake Rankings
Other Grade C Lakes in Florida
Orange County · Clarity: 3.5 ft
Walton County · Clarity: 4.2 ft
Polk County · Clarity: 3.5 ft
Volusia County · Clarity: 4.5 ft
Walton County · Clarity: 3 ft
Alachua County · Clarity: 3 ft
Eutrophic Lakes in Florida
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Seminole-Queens Mirror Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger.
- Casselberry, City OfCasselberry · 0.4 mi away · NPDES FLS606871Major
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.
Data Sources
Water quality data from the EPA Water Quality Portal
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-04-13
Monitoring stations: 3
Where to stay near Seminole-Queens Mirror Lake
Compare lakeside cabins, hotels, and vacation rentals near Seminole-Queens Mirror Lake in Seminole County, Florida — live availability and prices for your trip.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.