Allignorth Lake
Allignorth Lake in Columbia County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.8 ft visibility. Phosphorus: 53 µg/L. Surface area: 322 acres.
- Clarity
- 1.8 ft
- Area
- 322 acres
- Trend
- ↑ Improving
- Public access
- Yes
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Why Allignorth 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 Allignorth Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity and phosphorus, but not algae (chlorophyll-a).
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.
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. Grade methodology: LakeQuality methodology.
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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 Allignorth Lake
These readings exist but are not enough for an A–F grade — see why.
Very murky, less than 1.8 ft of visibility. Phosphorus level: 53 µg/L. Trophic State Index: 65.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.8 ft | Not graded |
| Phosphorus | 53 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 65 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Allignorth Lake
Compare lakeside cabins, hotels, and vacation rentals near Allignorth Lake in Columbia 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 Allignorth Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 322 acres |
| Public Access | Yes |
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
Fishing Allignorth Lake
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.131 m/yr | 3 |
| Phosphorus | ↑ Improving | -11 µg/L/yr | 3 |
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
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL3516A · Official waterbody report · Matched by proximity (1.19 km)
Graded lakes near Allignorth Lake
Allignorth Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Columbia County
Frequently asked questions about Allignorth Lake
Where is Allignorth Lake?
- Allignorth Lake is a lake in Columbia 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 Allignorth Lake?
- Allignorth Lake in Columbia County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 1.8 ft visibility. Phosphorus: 53 µg/L. Surface area: 322 acres.
Is Allignorth Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Allignorth Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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.
Explore Allignorth Lake across LakeQuality
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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)
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
Named boat-access points from the USGS National Boat Ramps inventory