Beulah-Col Lake
Polk County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Beulah-Col Lake. Here is what has been measured.
- Eutrophic
Beulah-Col Lake in Polk County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 8.2 ft visibility. Phosphorus: 37.5 µg/L.
Beulah-Col Lake is a productive, nutrient-rich eutrophic lake in Polk County, Florida. Overall water quality is declining over recent sampling years. Compared to the 176 other monitored lakes in Polk County, Beulah-Col Lake ranks #85 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-09-03. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLow algae
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.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Beulah-Col 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 Beulah-Col Lake
These are the measurements Florida DEP publishes for Beulah-Col 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 8.2 ft. Phosphorus 37.5 µg/L. TSI 52.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 8.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 37.5µg/L | Good 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. | 52 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Beulah-Col Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Beulah-Col Lake typically sits around 83°F at the surface in October. Summer average is about 84°F. Usually warmest in Aug (about 86°F) and coldest in Jan (about 65°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (65°F) to its warmest (86°F).
Typical surface water temperature by month, from 53 field readings (2010–2025) via the EPA Water Quality Portal. See the full Beulah-Col Lake water temperature breakdown →
Stays via Stay22
Stays near Beulah-Col Lake
Compare lakeside cabins, hotels, and vacation rentals near Beulah-Col Lake in Polk 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.
Top-rated places to stay near Beulah-Col Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Florida’s top lakes →
Follow Beulah-Col Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Beulah-Col Lake
Water Quality Trend: Worsening
Based on 6 years of monitoring (2020–2025).
Water clarity
Worsening6 years
Phosphorus
Stable-0.97 µg/L/yr6 years
Nearby Lakes in Polk County
Frequently asked questions about Beulah-Col Lake
Where is Beulah-Col Lake?
- Beulah-Col Lake is a lake in Polk County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Beulah-Col Lake?
- Beulah-Col Lake in Polk County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 8.2 ft visibility. Phosphorus: 37.5 µg/L.
Is Beulah-Col Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Beulah-Col Lake?
- Beulah-Col Lake typically sits around 83°F at the surface in October, from 53 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
Explore Beulah-Col Lake across LakeQuality
More lakes in Florida
Other Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
48 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples48 samples · 2020–2025
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.