Ctmc Lake
Cullman County, AlabamaView mapDirections
ADEM publishes the water-quality measurements for Ctmc Lake. Here is what has been measured.
- Eutrophic
Ctmc Lake in Cullman County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 5.4 ft visibility. Phosphorus: 28 µg/L. Chlorophyll-a (algae): 17.1 µg/L.
Ctmc Lake is a productive, nutrient-rich eutrophic lake in Cullman County, Alabama. Compared to the 1 other monitored lakes in Cullman County, Ctmc Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, ADEM, last sampled 2024-09-18. Methodology: how these readings are compared.
Swimming conditions
Readings onlyAlgae risk
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. Check local advisories before you swim.
Whether Ctmc Lake is safe to swim in today is a call for the Alabama Department of Environmental Management and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Ctmc Lake
These are the measurements ADEM publishes for Ctmc Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5.4 ft. Phosphorus 28 µg/L. Chlorophyll-a 17.1 µg/L. TSI 54.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.4ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 28µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 17.1µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 54 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
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Answers come straight from the public measurements and survey records on this page.
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Stays near Ctmc Lake
Compare lakeside cabins, hotels, and vacation rentals near Ctmc Lake in Cullman County, Alabama — 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 Ctmc Lake are listed below.
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Fishing Ctmc Lake
Nearby Lakes in Cullman County
Frequently asked questions about Ctmc Lake
Where is Ctmc Lake?
- Ctmc Lake is a lake in Cullman County, Alabama. Its water-quality measurements are published by ADEM and shown on this page as reported.
What is the water quality of Ctmc Lake?
- Ctmc Lake in Cullman County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 5.4 ft visibility. Phosphorus: 28 µg/L. Chlorophyll-a (algae): 17.1 µg/L.
Is Ctmc Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Ctmc Lake across LakeQuality
More lakes in Alabama
Other Lakes in Alabama
Where this data comes from
100 measurements from 2 monitoring stations, 2017–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- ALABAMA DEPT. OF ENVIRONMENTAL MANAGEMENT - WATER QUALITY DATA
21AWIC100 samples · 2017–2024
Analytical methods
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (2)
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.