Pace Island Dock Lake
Clay County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Pace Island Dock Lake. Here is what has been measured.
- Eutrophic
- Impaired · Algal growth
Pace Island Dock Lake in Clay County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2.3 ft visibility. Phosphorus: 74 µg/L.
Pace Island Dock Lake is a productive, nutrient-rich eutrophic lake in Clay County, Florida. Water clarity is improving over recent sampling years. Compared to the 16 other monitored lakes in Clay County, Pace Island Dock Lake ranks #13 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-08-07. 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.
Nutrient and algae readings are not a swimming clearance. Pace Island Dock Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for algal growth, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Pace Island Dock 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 Pace Island Dock Lake
These are the measurements Florida DEP publishes for Pace Island Dock Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 2.3 ft of visibility. Phosphorus 74 µg/L. TSI 66.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 74µg/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. | 66 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Pace Island Dock Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Pace Island Dock Lake typically sits around 81°F at the surface in September. Summer average is about 87°F. Usually warmest in Jun (about 89°F) and coldest in Sep (about 81°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (81°F) to its warmest (89°F).
Typical surface water temperature by month, from 27 field readings (2021–2025) via the EPA Water Quality Portal. See the full Pace Island Dock Lake water temperature breakdown →
Stays via Stay22
Stays near Pace Island Dock Lake
Compare lakeside cabins, hotels, and vacation rentals near Pace Island Dock Lake in Clay 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 Pace Island Dock Lake are listed below.
Top-rated places to stay near Pace Island Dock 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 Pace Island Dock Lake
Water Quality Trend: Stable
Based on 6 years of monitoring (2020–2025).
Water clarity
Improving6 years
Phosphorus
Worsening+4.37 µg/L/yr6 years
EPA Impairment Status
Pace Island Dock Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Aquatic life, Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL2389 · Official waterbody report
Nearby Lakes in Clay County
Frequently asked questions about Pace Island Dock Lake
Where is Pace Island Dock Lake?
- Pace Island Dock Lake is a lake in Clay County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Pace Island Dock Lake?
- Pace Island Dock Lake in Clay County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2.3 ft visibility. Phosphorus: 74 µg/L.
Is Pace Island Dock Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Pace Island Dock Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for algal growth, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
What is the water temperature of Pace Island Dock Lake?
- Pace Island Dock Lake typically sits around 81°F at the surface in September, from 27 EPA Water Quality Portal field readings (2021–2025). That is a typical value for the month, not a live reading.
Explore Pace Island Dock Lake across LakeQuality
Planning a trip around Castillo de San Marcos?
Pace Island Dock Lake is about 29 miles from Castillo de San Marcos National Monument. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Castillo de San Marcos →More lakes in Florida
Other Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
44 measurements from 1 monitoring station, 2021–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FL Dept. of Environmental Protection, Northeast District
21FLA_WQX44 samples · 2021–2025
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database