Tenr Lake
Lauderdale County, AlabamaView mapDirections
Not enough samples to grade — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. No letter yet. Here is what we do have.
- Impaired · Mercury
- Public access
- Limited data
Tenr Lake in Lauderdale County, Alabama is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.1 ft visibility. Phosphorus: 45.5 µg/L. Chlorophyll-a (algae): 3.7 µg/L.
- Clarity
- 6.1 ft
- Phosphorus
- 45.5 µg/L
- Chlorophyll-a
- 3.7 µg/L
- Public access
- Yes
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Why Tenr 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 Tenr Lake, the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity. Sampling here has recorded water clarity, phosphorus and 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 ADEM and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Tenr Lake is a lake in Lauderdale County, Alabama. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, ADEM, last sampled 2015-10-20. Grade methodology: LakeQuality methodology.
What Tenr Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Tenr Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Water quality measurements for Tenr Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 6.1 ft. Phosphorus 45.5 µg/L. Chlorophyll-a 3.7 µg/L. TSI 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.1 ft | Not graded |
| Phosphorus | 45.5 µg/L | Not graded |
| Chlorophyll-a (Algae) | 3.7 µg/L | Not graded |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Recreation & Access
- Pride StationPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Tenr Lake
EPA Impairment Status
Tenr Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit AL06030005-0807-111 · Official waterbody report · Matched by proximity (2.15 km)
Graded lakes near Tenr Lake
Tenr Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Lauderdale County
Frequently asked questions about Tenr Lake
Where is Tenr Lake?
- Tenr Lake is a lake in Lauderdale County, Alabama. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Tenr Lake?
- Tenr Lake in Lauderdale County, Alabama is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.1 ft visibility. Phosphorus: 45.5 µg/L. Chlorophyll-a (algae): 3.7 µg/L.
Is Tenr Lake safe to swim in?
- The letter is not a swimming clearance. Tenr Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Are there boat ramps on Tenr Lake?
- Tenr Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Pride Station. Public access is listed as yes.
Explore Tenr Lake across LakeQuality
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Where this data comes from
82 measurements from 2 monitoring stations, 2013–2015. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- ALABAMA DEPT. OF ENVIRONMENTAL MANAGEMENT - WATER QUALITY DATA
21AWIC82 samples · 2013–2015
Analytical methods
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (2)
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