Hillsborough-Cool-Kell Lake
Hillsborough-Cool-Kell Lake in Hillsborough County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar.
- Trend
- → Stable
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Why Hillsborough-Cool-Kell Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Hillsborough-Cool-Kell Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by FDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Hillsborough-Cool-Kell Lake is a lake in Hillsborough County, Florida.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2021-02-02. Grade methodology: LakeQuality methodology.
Watch Hillsborough-Cool-Kell Lake water quality
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Hillsborough-Cool-Kell Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Where to stay near Hillsborough-Cool-Kell Lake
Compare lakeside cabins, hotels, and vacation rentals near Hillsborough-Cool-Kell Lake in Hillsborough 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 Hillsborough-Cool-Kell Lake
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Fishing Hillsborough-Cool-Kell Lake
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.07 m/yr | 5 |
| Phosphorus | → Stable | -0.2 µg/L/yr | 5 |
EPA Impairment Status
Hillsborough-Cool-Kell Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit FL1451V · Official waterbody report · Matched by proximity (2.68 km)
Graded lakes near Hillsborough-Cool-Kell Lake
Hillsborough-Cool-Kell Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Hillsborough County
Frequently asked questions about Hillsborough-Cool-Kell Lake
Where is Hillsborough-Cool-Kell Lake?
- Hillsborough-Cool-Kell Lake is a lake in Hillsborough County, Florida. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Hillsborough-Cool-Kell Lake?
- Hillsborough-Cool-Kell Lake in Hillsborough County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar.
Is Hillsborough-Cool-Kell Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Hillsborough-Cool-Kell Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Hillsborough-Cool-Kell Lake across LakeQuality
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Where this data comes from
6 measurements from 3 monitoring stations, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX6 samples · 2021
Monitoring station identifiers (3)
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