Gntc Lake
Covington County, AlabamaView mapDirections
Clarity, phosphorus, and algae sit in the clean band for this region.
- Eutrophic
- #3 of 3 in the county
- Public access
Gntc Lake in Covington County, Alabama has a water quality grade of B (Good). Water clarity: 3.7 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 10.7 µg/L.
- Clarity
- 3.7 ft
- Type
- Eutrophic
- Phosphorus
- 20 µg/L
- Chlorophyll-a
- 10.7 µg/L
- Public access
- Yes
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Watch Gntc Lake’s letter
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Gntc Lake is a productive, nutrient-rich eutrophic lake in Covington County, Alabama. Water quality is graded B based on 2 sampling years through 2024. Limited fish-species data available. Public access is available. Compared to the 2 other monitored lakes in Covington County, Gntc Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, ADEM, last sampled 2024-10-30. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyLow algae
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The B is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: B (Good)
Murky, only visible to about 3.7 ft. Phosphorus 20 µg/L. Chlorophyll-a 10.7 µg/L. TSI 53. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.7 ft | Not graded |
| Phosphorus | 20 µg/L | Good |
| Chlorophyll-a (Algae) | 10.7 µg/L | Good |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Fishing Gntc Lake
County Ranking
Ranked #3 of 3 lakes in Covington County
Nearby Lakes in Covington County
Frequently asked questions about Gntc Lake
Where is Gntc Lake?
- Gntc Lake is a lake in Covington County, Alabama. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Gntc Lake?
- Gntc Lake in Covington County, Alabama has a water quality grade of B (Good). Water clarity: 3.7 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 10.7 µg/L.
Is Gntc Lake safe to swim in?
- The B is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Explore Gntc Lake across LakeQuality
More Alabama Lake Rankings
Other Grade B Lakes in Alabama
Where this data comes from
255 measurements from 2 monitoring stations, 2012–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- ALABAMA DEPT. OF ENVIRONMENTAL MANAGEMENT - WATER QUALITY DATA
21AWIC255 samples · 2012–2024
Analytical methods
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- 2120 B ~ Color in Water by Visual Comparison
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.