Sarasota-Lake-M
Sarasota County, FloridaEutrophic
Sarasota-Lake-M is a productive, nutrient-rich eutrophic lake in Sarasota County, Florida. Water quality is graded F based on 2 sampling years through 2025. Compared to the 37 other monitored lakes in Sarasota County, Sarasota-Lake-M ranks #29 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-03-07. Grade methodology: LakeGrade methodology.
Watch Sarasota-Lake-M water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 2.5 ft of visibility. Phosphorus level: 136 µg/L. Trophic State Index: 69.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 ft | F |
| Phosphorus | 136 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 69 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #29 of 38 lakes in Sarasota County
Cleaner Lakes Within 30 Miles
Sarasota-Lake-M holds Grade F. 5 nearby lakes hold higher grades.
- CSarasota-Sundrop LakeSarasota County · 5 mi · Two grade letters higher (F → C)
- DSarasota-LakeSarasota County · 0.9 mi · Higher grade (F → D)
- DSarasota-Lake-GSarasota County · 1.6 mi · Higher grade (F → D)
- DLake UihleinManatee County · 2.8 mi · Higher grade (F → D)
- DManatee-Ward LakeManatee County · 5 mi · Higher grade (F → D)
Nearby Lakes in Sarasota County
More Florida Lake Rankings
Other Grade F Lakes in Florida
Eutrophic Lakes in Florida
Regulated Pollution Sources Nearby
3 EPA-permitted facilities operate within about 5 miles of Sarasota-Lake-M under Clean Water Act (NPDES) discharge permits.
- Sarasota, City Of - Fruitville WwtpSarasota · 1.1 mi away · NPDES FL0134589
- Sarasota County North Master Reuse SystemSarasota · 1.9 mi away · NPDES FL0177008
- Smr Aggregates IncSarasota County · 2.3 mi away · NPDES FL0043354
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: 2025-03-07
Monitoring stations: 3
Where to stay near Sarasota-Lake-M
Compare lakeside cabins, hotels, and vacation rentals near Sarasota-Lake-M in Sarasota 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.