Jacc Lake
Walton County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Jacc Lake. Here is what has been measured.
- Mesotrophic
- Impaired · Mercury
- Public access
Jacc Lake in Walton County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 9.3 ft visibility. Phosphorus: 12 µg/L. Chlorophyll-a (algae): 5.3 µg/L.
Jacc Lake is a mesotrophic lake in Walton County, Florida. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 83 other monitored lakes in Walton County, Jacc Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2024-10-31. Methodology: how these readings are compared.
What Jacc Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
Readings onlyBacteria tested: low
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, Jacc Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 8 samples across 2 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 Jacc 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 Jacc Lake
These are the measurements Florida DEP publishes for Jacc 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 9.3 ft. Phosphorus 12 µg/L. Chlorophyll-a 5.3 µg/L. TSI 44.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 9.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 12µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 5.3µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 44 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Jacc Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Jacc Lake typically sits around 73°F at the surface in October. Summer average is about 86°F. Usually warmest in Jul (about 87°F) and coldest in Apr (about 72°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (72°F) to its warmest (87°F).
Typical surface water temperature by month, from 215 field readings (2010–2024) via the EPA Water Quality Portal. See the full Jacc Lake water temperature breakdown →
Recreation & Access
- Florala State ParkPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Jacc Lake
Compare lakeside cabins, hotels, and vacation rentals near Jacc Lake in Walton 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 Jacc Lake
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Fishing Jacc Lake
Water quality readings over time
3 seasons of samples on record (2021–2024). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening3 years
Phosphorus
Worsening+0.67 µg/L/yr2 years
Chlorophyll-a
Worsening+0.17 µg/L/yr2 years
EPA Impairment Status
Jacc 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: Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL38A · Official waterbody report
Nearby Lakes in Walton County
Frequently asked questions about Jacc Lake
Where is Jacc Lake?
- Jacc Lake is a lake in Walton County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Jacc Lake?
- Jacc Lake in Walton County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 9.3 ft visibility. Phosphorus: 12 µg/L. Chlorophyll-a (algae): 5.3 µg/L.
Is Jacc Lake safe to swim in?
- Based on E. coli testing, Jacc Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 8 samples across 2 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 Jacc 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 Jacc Lake?
- Jacc Lake typically sits around 73°F at the surface in October, from 215 EPA Water Quality Portal field readings (2010–2024). That is a typical value for the month, not a live reading.
Are there boat ramps on Jacc Lake?
- Jacc Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Florala State Park. Public access is listed as yes.
Can I fish at Jacc Lake?
- Jacc Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. 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.
Explore Jacc Lake across LakeQuality
More lakes in Florida
Mesotrophic Lakes in Florida
Where this data comes from
43 measurements from 1 monitoring station, 2021–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- ALABAMA DEPT. OF ENVIRONMENTAL MANAGEMENT - WATER QUALITY DATA
21AWIC43 samples · 2021–2024
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
Named boat-access points from the USGS National Boat Ramps inventory