Griffinctr Lake
Seminole County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Griffinctr Lake. Here is what has been measured.
- Limited data
Griffinctr Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 7.4 ft visibility. Phosphorus: 15.5 µg/L.
Griffinctr Lake is a lake in Seminole County, Florida. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2023-11-28. Methodology: how these readings are compared.
Swimming conditions
No readingBacteria tested: exceedances
Based on E. coli testing, Griffinctr Lake occasionally exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 5.3% of 19 samples across 6 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.
Whether Griffinctr Lake is safe to swim in today is a call for the Florida Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Griffinctr Lake
These are the measurements Florida DEP publishes for Griffinctr Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 7.4 ft. Phosphorus 15.5 µg/L. TSI 46.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 7.4ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 15.5µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 46 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
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Answers come straight from the public measurements and survey records on this page.
Water Temperature
Griffinctr Lake typically sits around 70°F at the surface in October. Summer average is about 86°F. Usually warmest in Aug (about 87°F) and coldest in Feb (about 69°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (69°F) to its warmest (87°F).
Typical surface water temperature by month, from 52 field readings (2012–2025) via the EPA Water Quality Portal. See the full Griffinctr Lake water temperature breakdown →
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Stays near Griffinctr Lake
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Fishing Griffinctr Lake
Water Quality Trend: Improving
Based on 6 years of monitoring (2020–2025).
Water clarity
Stable6 years
Phosphorus
Improving-1.5 µg/L/yr5 years
Nearby Lakes in Seminole County
Frequently asked questions about Griffinctr Lake
Where is Griffinctr Lake?
- Griffinctr Lake is a lake in Seminole County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Griffinctr Lake?
- Griffinctr Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 7.4 ft visibility. Phosphorus: 15.5 µg/L.
Is Griffinctr Lake safe to swim in?
- Based on E. coli testing, Griffinctr Lake occasionally exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 5.3% of 19 samples across 6 seasons. That is a historical summary of past bacteria testing, not a current reading and not a swimming clearance. Bacteria levels can spike quickly after heavy rain, so whether Griffinctr Lake is safe to swim in today is a call for Florida's water agency and the county health department; check their current beach advisories before you swim.
What is the water temperature of Griffinctr Lake?
- Griffinctr Lake typically sits around 70°F at the surface in October, from 52 EPA Water Quality Portal field readings (2012–2025). That is a typical value for the month, not a live reading.
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Where this data comes from
14 measurements from 1 monitoring station, 2022–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples14 samples · 2022–2023
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.