Allignorth Lake
Columbia County, Florida322 acresView mapDirections
Florida DEP publishes the water-quality measurements for Allignorth Lake. Here is what has been measured.
- Impaired · Algal growth
- Public access
- Limited data
Allignorth Lake in Columbia County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 1.8 ft visibility. Phosphorus: 53 µg/L. Surface area: 322 acres.
Allignorth Lake is a 322-acre lake in Columbia County, Florida. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2024-06-17. Methodology: how these readings are compared.
What Allignorth Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Allignorth Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, impaired biota (cause unknown), nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Allignorth 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 Allignorth Lake
These are the measurements Florida DEP publishes for Allignorth 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 1.8 ft of visibility. Phosphorus 53 µg/L. TSI 65.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 53µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| 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. | 65 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Allignorth Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
322 acres
Public access
Yes
Listed by Florida DEP
No bathymetric survey has been published for Allignorth Lake, so its depth is not documented here.
Recreation & Access
- Alligator Lake NorthPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Fishing Allignorth 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
Improving3 years
Phosphorus
Improving-11 µg/L/yr3 years
Reservoir Info (USACE NID)
Allignorth Lake is a man-made reservoir impounded by the Alligator Lake Dam 2, built primarily for recreation on the Alligator Lake; earth-type dam, 11 ft tall and 3,401 ft long.
- Surface area
- 322 ac
- Normal storage
- 7,029 ac-ft
- Max storage
- 7,029 ac-ft
- Hazard class
- Undetermined
- Owner
- CITY OF LAKE CITY
Source: USACE National Inventory of Dams, NID ID FL59002 · Operator website · Matched by proximity (0.16 km)
EPA Impairment Status
Allignorth Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
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 FL3516A · Official waterbody report
Nearby Lakes in Columbia County
Frequently asked questions about Allignorth Lake
Where is Allignorth Lake?
- Allignorth Lake is a lake in Columbia County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Allignorth Lake?
- Allignorth Lake in Columbia County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 1.8 ft visibility. Phosphorus: 53 µg/L. Surface area: 322 acres.
Is Allignorth Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Allignorth Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, impaired biota (cause unknown), nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Are there boat ramps on Allignorth Lake?
- Allignorth Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Alligator Lake North. Public access is listed as yes.
Can I fish at Allignorth Lake?
- Allignorth 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.
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Where this data comes from
2 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FL Dept. of Environmental Protection, Northeast District
21FLA_WQX2 samples · 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