Cahc Lake
Cleburne County, Alabama84 acresView mapDirections
ADEM publishes the water-quality measurements for Cahc Lake. Here is what has been measured.
- Mesotrophic
- 25 ft max depth
- Limited data
Cahc Lake in Cleburne County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 6.3 ft visibility. Phosphorus: 17 µg/L. Chlorophyll-a (algae): 6.4 µg/L. Surface area: 84 acres.
Cahc Lake is a 84-acre mesotrophic lake in Cleburne County, Alabama with an estimated average depth of about 25 feet.
Source: EPA Water Quality Portal sampling records, ADEM, last sampled 2023-10-25. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
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 Cahc 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 Cahc Lake
These are the measurements ADEM publishes for Cahc 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 6.3 ft. Phosphorus 17 µg/L. Chlorophyll-a 6.4 µg/L. TSI 48.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 6.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 17µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 6.4µg/L | Fair GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 48 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Cahc Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~25 ft est.
Surface area
84 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Alabama has not published bathymetry for Cahc Lake.
Lake Size & Watershed
Watershed (drainage) area
7 sq mi
HydroLAKES / HydroSHEDS
Shoreline
2.4 mi
HydroLAKES / HydroSHEDS
Elevation
906 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Stays via Stay22
Stays near Cahc Lake
Compare lakeside cabins, hotels, and vacation rentals near Cahc Lake in Cleburne 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.
Top-rated places to stay near Cahc Lake
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Alabama’s top lakes →
Follow Cahc Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Cahc Lake
Reservoir Info (USACE NID)
Cahc Lake is a man-made reservoir impounded by the Cahulga Creek W/S Dam Site 1 (completed 1972), built primarily for flood risk reduction on the Cahulga Creek; earth-type dam, 46 ft tall and 775 ft long.
- Surface area
- 84 ac
- Normal storage
- 637 ac-ft
- Max storage
- 3,940 ac-ft
- Drainage area
- 6.54 sq mi
- Hazard class
- High
- Owner
- HEFLIN AL CITY OF
All listed purposes: Flood Risk Reduction;Water Supply.
Source: USACE National Inventory of Dams, NID ID AL00616 · Operator website · Matched by proximity (0.29 km)
Nearby Lakes in Cleburne County
Frequently asked questions about Cahc Lake
Where is Cahc Lake?
- Cahc Lake is a lake in Cleburne County, Alabama. Its water-quality measurements are published by ADEM and shown on this page as reported.
What is the water quality of Cahc Lake?
- Cahc Lake in Cleburne County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 6.3 ft visibility. Phosphorus: 17 µg/L. Chlorophyll-a (algae): 6.4 µg/L. Surface area: 84 acres.
Is Cahc Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Cahc Lake?
- No published bathymetric survey covers Cahc Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 25 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 84 acres.
Explore Cahc Lake across LakeQuality
More lakes in Alabama
Other Lakes in Alabama
Mesotrophic Lakes in Alabama
Where this data comes from
32 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- ALABAMA DEPT. OF ENVIRONMENTAL MANAGEMENT - WATER QUALITY DATA
21AWIC32 samples · 2023
Analytical methods
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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
Lake size & watershed from HydroLAKES (HydroSHEDS)