Berw Lake
Winston County, AlabamaView mapDirections
Nutrients and algae run above the regional average.
↓ down from C at the last regrade
- Eutrophic
- Impaired · Oxygen depletion (low DO)
- #2 of 2 in the county
- Limited data
Berw Lake in Winston County, Alabama has a water quality grade of D (Nutrient-rich). Water clarity: 5 ft visibility. Phosphorus: 36 µg/L. Chlorophyll-a (algae): 12.3 µg/L.
- Clarity
- 5 ft
- Type
- Eutrophic
- Phosphorus
- 36 µg/L
- Chlorophyll-a
- 12.3 µg/L
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Stays near Berw Lake
Compare lakeside cabins, hotels, and vacation rentals near Berw Lake in Winston 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 Berw Lake are listed below.
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Watch Berw Lake’s letter
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Berw Lake is a productive, nutrient-rich eutrophic lake in Winston County, Alabama. Water quality is graded D based on 2 sampling years through 2023. Compared to the 1 other monitored lakes in Winston County, Berw Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, ADEM, last sampled 2023-10-18. 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. Berw Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
Water Quality Grade: D (Nutrient-rich)
Murky, only visible to about 5 ft. Phosphorus 36 µg/L. Chlorophyll-a 12.3 µg/L. TSI 55. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5 ft | Not graded |
| Phosphorus | 36 µg/L | Poor |
| Chlorophyll-a (Algae) | 12.3 µg/L | Fair |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Fishing Berw Lake
EPA Impairment Status
Berw 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 AL06030006-0102-102 · Official waterbody report · Matched by proximity (2.39 km)
County Ranking
Ranked #2 of 2 lakes in Winston County
Nearby Lakes in Winston County
Frequently asked questions about Berw Lake
Where is Berw Lake?
- Berw Lake is a lake in Winston County, Alabama. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Berw Lake?
- Berw Lake in Winston County, Alabama has a water quality grade of D (Nutrient-rich). Water clarity: 5 ft visibility. Phosphorus: 36 µg/L. Chlorophyll-a (algae): 12.3 µg/L.
Is Berw Lake safe to swim in?
- The D is nutrients and algae, not a swimming clearance. Berw Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
Explore Berw Lake across LakeQuality
2 documented falls within 11.7 mi, nearest Kinlock Falls
Species activity outlook by water temperature and season
Where to stay at Alabama's top lakes, each with its grade
High nutrients, frequent algae, reduced clarity
Alabama's cleanest and most-polluted lakes, ranked
More Alabama Lake Rankings
Other Grade D Lakes in Alabama
Where this data comes from
40 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
21AWIC40 samples · 2023
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
Impairment status from EPA ATTAINS 303(d) database