Ubam Lake
Marion County, Alabama1,470 acresView mapDirections
No nutrient or algae sampling on record from ADEM for this lake.
- Impaired · Mercury
- 52 ft max depth
- Limited data
Ubam Lake in Marion County, Alabama has water-quality measurements published by ADEM, shown here as reported. Surface area: 1470 acres.
Ubam Lake is a 1,470-acre lake in Marion County, Alabama with an estimated average depth of about 52 feet.
Source: EPA Water Quality Portal sampling records, ADEM, last sampled 2013-04-30. Methodology: how these readings are compared.
What Ubam Lake is good for
From access and monitoring records, not editorial picks.
- Big water1,470 acres
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Ubam Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
Whether Ubam 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 Ubam Lake
These are the measurements ADEM publishes for Ubam Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
Ask about Ubam Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~52 ft est.
Surface area
1,470 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Alabama has not published bathymetry for Ubam Lake.
Lake Size & Watershed
Watershed (drainage) area
104 sq mi
HydroLAKES / HydroSHEDS
Shoreline
29.3 mi
HydroLAKES / HydroSHEDS
Elevation
827 ft
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 Ubam Lake
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Fishing Ubam Lake
Reservoir Info (USACE NID)
Ubam Lake is a man-made reservoir impounded by the Upper Bear Creek Dam (completed 1978), built primarily for flood risk reduction on the Bear Creek; earth-type dam, 85 ft tall and 1,515 ft long.
- Surface area
- 1,470 ac
- Normal storage
- 37,400 ac-ft
- Max storage
- 40,100 ac-ft
- Drainage area
- 113 sq mi
- Hazard class
- High
- Owner
- TVA
All listed purposes: Flood Risk Reduction;Other;Recreation;Water Supply.
Source: USACE National Inventory of Dams, NID ID AL09301 · Operator website · Matched by proximity (0.13 km)
EPA Impairment Status
Ubam Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Fish consumption.
Source: EPA ATTAINS assessment unit AL06030006-0103-104 · Official waterbody report
Nearby Lakes in Marion County
Frequently asked questions about Ubam Lake
Where is Ubam Lake?
- Ubam Lake is a lake in Marion County, Alabama. Its water-quality measurements are published by ADEM and shown on this page as reported.
What is the water quality of Ubam Lake?
- Ubam Lake in Marion County, Alabama has water-quality measurements published by ADEM, shown here as reported. Surface area: 1470 acres.
Is Ubam Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Ubam Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.
How deep is Ubam Lake?
- No published bathymetric survey covers Ubam Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 52 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 1470 acres.
Explore Ubam Lake across LakeQuality
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Where this data comes from
3 measurements from 1 monitoring station, 2013. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- ALABAMA DEPT. OF ENVIRONMENTAL MANAGEMENT - WATER QUALITY DATA
21AWIC3 samples · 2013
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)