Turl Lake
Lawrence County, AlabamaView mapDirections
Nutrients and algae run above the regional average.
↓ down from C at the last regrade
- Eutrophic
- #2 of 2 in the county
- 40 ft max depth
- Limited data
Turl Lake in Lawrence County, Alabama has a water quality grade of D (Nutrient-rich). Water clarity: 5 ft visibility. Phosphorus: 33 µg/L. Chlorophyll-a (algae): 16.3 µg/L.
- Clarity
- 5 ft
- Max depth
- ~40 ft est.
- Type
- Eutrophic
- Phosphorus
- 33 µg/L
- Chlorophyll-a
- 16.3 µg/L
Stays via Stay22
Stays near Turl Lake
Compare lakeside cabins, hotels, and vacation rentals near Turl Lake in Lawrence 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 grade measures nutrients and algae, not lodging — cabins and rentals around Turl Lake are listed below.
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Watch Turl Lake’s letter
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Turl Lake is a productive, nutrient-rich eutrophic lake in Lawrence County, Alabama with an estimated average depth of about 40 feet. Water quality is graded D based on 2 sampling years through 2017. Compared to the 1 other monitored lakes in Lawrence County, Turl Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, ADEM, last sampled 2017-10-12. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyLimited data
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 D is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: D (Nutrient-rich)
Murky, only visible to about 5 ft. Phosphorus 33 µg/L. Chlorophyll-a 16.3 µg/L. TSI 55. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5 ft | Not graded |
| Phosphorus | 33 µg/L | Fair |
| Chlorophyll-a (Algae) | 16.3 µg/L | Poor |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~40 ft est. |
| Average Depth | ~8 ft est. |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Alabama has not published bathymetry for Turl Lake.
Lake Size & Watershed
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.
Fishing Turl Lake
Reservoir Info (USACE NID)
Turl Lake is a man-made reservoir impounded by the Mastersom Mill Lake (completed 1967), built primarily for recreation on the Turkey Creek; earth-type dam, 47 ft tall and 633 ft long.
- Normal storage
- 1,330 ac-ft
- Max storage
- 1,890 ac-ft
- Hazard class
- High
- Owner
- CITY OF MOULTON
All listed purposes: Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID AL01005 · Operator website · Matched by proximity (0.02 km)
County Ranking
Ranked #2 of 2 lakes in Lawrence County
Nearby Lakes With Higher Grades
Turl Lake holds Grade D. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.
Nearby Lakes in Lawrence County
Frequently asked questions about Turl Lake
Where is Turl Lake?
- Turl Lake is a lake in Lawrence County, Alabama. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Turl Lake?
- Turl Lake in Lawrence County, Alabama has a water quality grade of D (Nutrient-rich). Water clarity: 5 ft visibility. Phosphorus: 33 µg/L. Chlorophyll-a (algae): 16.3 µg/L.
Is Turl Lake safe to swim in?
- The D is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is Turl Lake?
- No published bathymetric survey covers Turl Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 40 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Explore Turl Lake across LakeQuality
More Alabama Lake Rankings
Other Grade D Lakes in Alabama
Where this data comes from
30 measurements from 1 monitoring station, 2017. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- ALABAMA DEPT. OF ENVIRONMENTAL MANAGEMENT - WATER QUALITY DATA
21AWIC30 samples · 2017
Analytical methods
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (1)
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
Lake size & watershed from HydroLAKES (HydroSHEDS)