Crecent Lake
Pinellas County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Crecent Lake. Here is what has been measured.
- Eutrophic
- Impaired · Algal growth
- Public access
Crecent Lake in Pinellas County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Phosphorus: 80 µg/L.
Crecent Lake is a productive, nutrient-rich eutrophic lake in Pinellas County, Florida. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available. Compared to the 33 other monitored lakes in Pinellas County, Crecent Lake ranks #29 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-02-25. Methodology: how these readings are compared.
Swimming conditions
Readings onlyRecreation use not supported
Based on clarity and algae readings from past sampling — there is no 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, Crecent Lake frequently exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 10.2% of 49 samples across 8 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 Crecent 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 Crecent Lake
These are the measurements Florida DEP publishes for Crecent Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 80 µg/L. TSI 67.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 80µg/L | Poor GoodFairPoor |
| 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. | 67 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Crecent Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Crecent Lake typically sits around 80°F at the surface in October. Summer average is about 88°F. Usually warmest in Jul (about 89°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 (89°F).
Typical surface water temperature by month, from 89 field readings (2010–2025) via the EPA Water Quality Portal. See the full Crecent Lake water temperature breakdown →
Stays via Stay22
Stays near Crecent Lake
Compare lakeside cabins, hotels, and vacation rentals near Crecent Lake 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 readings cover nutrients and algae, not lodging. Cabins and rentals around Crecent Lake are listed below.
Top-rated places to stay near Crecent Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Planning a whole trip? See where to stay at Florida’s top lakes →
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Fishing Crecent Lake
Water Quality Trend: Worsening
Based on 5 years of monitoring (2020–2024).
Water clarity
Worsening4 years
Phosphorus
Worsening+11 µg/L/yr5 years
EPA Impairment Status
Crecent Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5A).
Causes of impairment
Designated uses not supporting: Aquatic life, Recreation.
Source: EPA ATTAINS assessment unit FL1700A · Official waterbody report
Nearby Lakes in Pinellas County
Frequently asked questions about Crecent Lake
Where is Crecent Lake?
- Crecent Lake is a lake in Pinellas County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Crecent Lake?
- Crecent Lake in Pinellas County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Phosphorus: 80 µg/L.
Is Crecent Lake safe to swim in?
- Based on E. coli testing, Crecent Lake frequently exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 10.2% of 49 samples across 8 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 Crecent 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 Crecent Lake?
- Crecent Lake typically sits around 80°F at the surface in October, from 89 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
Can I fish at Crecent Lake?
- Public access to Crecent Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Florida's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
69 measurements from 2 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples69 samples · 2020–2025
Monitoring station identifiers (2)
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database