Tenr Lake
Marshall County, AlabamaView mapDirections
ADEM publishes the water-quality measurements for Tenr Lake. Here is what has been measured.
- Eutrophic
- Public access
- Limited data
Tenr Lake in Marshall County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 5.1 ft visibility. Phosphorus: 23.5 µg/L. Chlorophyll-a (algae): 12.9 µg/L.
Tenr Lake is a productive, nutrient-rich eutrophic lake in Marshall County, Alabama. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, ADEM, last sampled 2025-10-15. Methodology: how these readings are compared.
What Tenr Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
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 Tenr 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 Tenr Lake
These are the measurements ADEM publishes for Tenr 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 5.1 ft. Phosphorus 23.5 µg/L. Chlorophyll-a 12.9 µg/L. TSI 53.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.1ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 23.5µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 12.9µg/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. | 53 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Tenr Lake
Answers come straight from the public measurements and survey records on this page.
Recreation & Access
- Brown's CreekPublic
- Honeycomb CreekPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Stays near Tenr Lake
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Fishing Tenr Lake
Nearby Lakes in Marshall County
Frequently asked questions about Tenr Lake
Where is Tenr Lake?
- Tenr Lake is a lake in Marshall County, Alabama. Its water-quality measurements are published by ADEM and shown on this page as reported.
What is the water quality of Tenr Lake?
- Tenr Lake in Marshall County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 5.1 ft visibility. Phosphorus: 23.5 µg/L. Chlorophyll-a (algae): 12.9 µg/L.
Is Tenr Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Tenr Lake?
- Tenr Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Brown's Creek, Honeycomb Creek. Public access is listed as yes.
Can I fish at Tenr Lake?
- Tenr Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Alabama's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
27 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- ALABAMA DEPT. OF ENVIRONMENTAL MANAGEMENT - WATER QUALITY DATA
21AWIC27 samples · 2025
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
Named boat-access points from the USGS National Boat Ramps inventory