South Channel From Lake Suemar
South Channel From Lake Suemar in Pinellas County, Florida has a water quality grade of D (Nutrient-rich). Phosphorus: 150 µg/L.
- Type
- Hypereutrophic
- Trend
- ↓ Declining
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near South Channel From Lake Suemar →
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South Channel From Lake Suemar is a highly nutrient-loaded hypereutrophic lake in Pinellas County, Florida. Water quality is graded D based on 1 sampling years through 2024. Overall water quality is declining over recent sampling years. Compared to the 33 other monitored lakes in Pinellas County, South Channel From Lake Suemar ranks #33 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2024-12-18. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyBacteria F · advisory
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, South Channel From Lake Suemar routinely exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 60% of 15 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 Grade: D (Nutrient-rich)
No clarity data. Phosphorus level: 150 µg/L. Trophic State Index: 76.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 150 µg/L | Poor |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 76 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near South Channel From Lake Suemar
Compare lakeside cabins, hotels, and vacation rentals near South Channel From Lake Suemar in Pinellas 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 South Channel From Lake Suemar are listed below.
Top-rated places to stay near South Channel From Lake Suemar
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Fishing South Channel From Lake Suemar
Water Quality Trend: ↓ Declining
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.35 m/yr | 3 |
| Phosphorus | ↓ Declining | +23 µg/L/yr | 3 |
EPA Impairment Status
South Channel From Lake Suemar is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL1556 · Official waterbody report · Matched by proximity (0.44 km)
Regulated Pollution Sources Nearby
2 EPA-permitted facilities operate within about 5 miles of South Channel From Lake Suemar under Clean Water Act (NPDES) discharge permits, including 2 classified by the EPA as major dischargers. 2 facilities have a reported Clean Water Act violation in the past three years.
- Coca-Cola North America - Dunedin Juice PlantDunedin · 1 mi away · NPDES FL0000477MajorRecent violation
- Dunedin City Of AwwtfDunedin · 1.1 mi away · NPDES FL0021326MajorRecent violation
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 #33 of 34 lakes in Pinellas County
Nearby Lakes With Higher Grades
South Channel From Lake Suemar holds Grade D. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.
Nearby Lakes in Pinellas County
Frequently asked questions about South Channel From Lake Suemar
Where is South Channel From Lake Suemar?
- South Channel From Lake Suemar is a lake in Pinellas County, Florida. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for South Channel From Lake Suemar?
- South Channel From Lake Suemar in Pinellas County, Florida has a water quality grade of D (Nutrient-rich). Phosphorus: 150 µg/L.
Is South Channel From Lake Suemar safe to swim in?
- Based on E. coli testing, South Channel From Lake Suemar routinely exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 60% of 15 samples across 2 seasons. That works out to a bacteria swim-safety grade of F — a historical summary of past testing, not a current reading. South Channel From Lake Suemar has a water quality grade of D (Nutrient-rich). Bacteria levels can spike quickly after heavy rain, so always check Florida's current beach and health-department advisories before you swim.
Explore South Channel From Lake Suemar across LakeQuality
More Florida Lake Rankings
Other Grade D Lakes in Florida
Pasco County · 1 ft
Hillsborough County · 2.4 ft
Hillsborough County · 2.5 ft
Hillsborough County · Nutrient-rich
Hillsborough County · 2.5 ft
Hillsborough County · Nutrient-rich
Hypereutrophic Lakes in Florida
Where this data comes from
17 measurements from 1 monitoring station, 2023–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples17 samples · 2023–2024
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)