Shlb Lake
Baldwin County, AlabamaView mapDirections
ADEM publishes the water-quality measurements for Shlb Lake. Here is what has been measured.
- Oligotrophic
- 40 ft max depth
- Public access
Shlb Lake in Baldwin County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 4.4 ft visibility. Phosphorus: 32.5 µg/L. Chlorophyll-a (algae): 1.1 µg/L.
Shlb Lake is a cold, clear oligotrophic lake in Baldwin County, Alabama with an estimated average depth of about 40 feet. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, ADEM, last sampled 2024-10-10. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLow algae
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 Shlb 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 Shlb Lake
These are the measurements ADEM publishes for Shlb 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 4.4 ft. Phosphorus 32.5 µg/L. Chlorophyll-a 1.1 µg/L. TSI 47.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.4ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 32.5µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 1.1µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 47 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Shlb Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~40 ft est.
Public access
Yes
Listed by ADEM
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Alabama has not published bathymetry for Shlb Lake.
Lake Size & Watershed
Watershed (drainage) area
2 sq mi
HydroLAKES / HydroSHEDS
Surface area
536 acres
HydroLAKES / HydroSHEDS
Shoreline
5.2 mi
HydroLAKES / HydroSHEDS
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.
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Stays near Shlb Lake
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Fishing Shlb Lake
Water quality readings over time
3 seasons of samples on record (2018–2024). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Stable3 years
Phosphorus
Worsening+3.75 µg/L/yr3 years
Chlorophyll-a
Worsening+0.1 µg/L/yr3 years
Nearby Lakes in Baldwin County
Frequently asked questions about Shlb Lake
Where is Shlb Lake?
- Shlb Lake is a lake in Baldwin County, Alabama. Its water-quality measurements are published by ADEM and shown on this page as reported.
What is the water quality of Shlb Lake?
- Shlb Lake in Baldwin County, Alabama has water-quality measurements published by ADEM, shown here as reported. Water clarity: 4.4 ft visibility. Phosphorus: 32.5 µg/L. Chlorophyll-a (algae): 1.1 µg/L.
Is Shlb Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Shlb Lake?
- No published bathymetric survey covers Shlb 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.
Can I fish at Shlb Lake?
- Public access to Shlb Lake is listed as yes on the lake record. 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.
Explore Shlb Lake across LakeQuality
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Where this data comes from
103 measurements from 1 monitoring station, 2018–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- ALABAMA DEPT. OF ENVIRONMENTAL MANAGEMENT - WATER QUALITY DATA
21AWIC103 samples · 2018–2024
Analytical methods
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
- 2120 B ~ Color in Water by Visual Comparison
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)