Pasco-Conley Lake
Pasco County, FloridaHypereutrophic
Pasco-Conley Lake is a highly nutrient-loaded hypereutrophic lake in Pasco County, Florida. Water quality is graded F based on 2 sampling years through 2024. Compared to the 53 other monitored lakes in Pasco County, Pasco-Conley Lake ranks #52 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2024-09-16. Grade methodology: LakeGrade methodology.
Watch Pasco-Conley Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 1 ft of visibility. Phosphorus level: 108 µg/L. Trophic State Index: 74.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1 ft | F |
| Phosphorus | 108 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 74 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Location
County Ranking
Ranked #52 of 54 lakes in Pasco County
Cleaner Lakes Within 30 Miles
Pasco-Conley Lake holds Grade F. 2 nearby lakes hold higher grades.
- DPinellas-Salmons Bay LakePinellas County · 3.7 mi · Higher grade (F → D)
- DLittle Salt Lake NePinellas County · 2.5 mi · Higher grade (F → D)
Nearby Lakes in Pasco County
More Florida Lake Rankings
Other Grade F Lakes in Florida
Hypereutrophic Lakes in Florida
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Pasco-Conley Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger.
- Duke Energy Florida, Llc - Anclote StationHoliday · 2 mi away · NPDES FL0002992Major
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.
Data Sources
Water quality data from the EPA Water Quality Portal
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-16
Monitoring stations: 3
Where to stay near Pasco-Conley Lake
Compare lakeside cabins, hotels, and vacation rentals near Pasco-Conley Lake in Pasco County, Florida — live availability and prices for your trip.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.