Teal Lake
Audrain County, Missouri78 acresView mapDirections
Missouri DNR publishes the water-quality measurements for Teal Lake. Here is what has been measured.
- 34 ft max depth
- Public access
- Limited data
Teal Lake in Audrain County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Water clarity: 2 ft visibility. Phosphorus: 109 µg/L. Chlorophyll-a (algae): 97.7 µg/L. Surface area: 78 acres.
Teal Lake is a 78-acre lake in Audrain County, Missouri with an estimated average depth of about 34 feet. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2020-07-22. Methodology: how these readings are compared.
What Teal Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Teal Lake is safe to swim in today is a call for the Missouri Department of Natural Resources and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Teal Lake
These are the measurements Missouri DNR publishes for Teal Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 2 ft of visibility. Phosphorus 109 µg/L. Chlorophyll-a 97.7 µg/L. TSI 71.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 109µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 97.7µg/L | Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water. |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 71 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Teal Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~34 ft est.
Surface area
78 acres
Public access
Yes
Listed by Missouri DNR
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Missouri has not published bathymetry for Teal Lake.
Lake Size & Watershed
Watershed (drainage) area
6 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.6 mi
HydroLAKES / HydroSHEDS
Elevation
755 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.
Recreation & Access
- Teal Lake (Mexico)Public
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Stays near Teal Lake
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Fishing Teal Lake
Reservoir Info (USACE NID)
Teal Lake is a man-made reservoir impounded by the Teal Lake Dam (completed 1969), built primarily for recreation on the TR-SOUTH FORK SALT RIVER; rockfill-type dam, 20 ft tall.
- Surface area
- 78 ac
- Normal storage
- 179 ac-ft
- Max storage
- 835 ac-ft
- Drainage area
- 3,387 sq mi
- Hazard class
- High
- Owner
- A P GREEN REFRACTORY CO
Source: USACE National Inventory of Dams, NID ID MO10082 · Operator website
Regulated Pollution Sources Nearby
16 EPA-permitted facilities operate within about 5 miles of Teal Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger. 10 facilities have a reported Clean Water Act violation in the past three years.
- Mexico WwtpMexico · 2 mi away · NPDES MO0036242MajorRecent violation
- Lakeside Estates WwtfMexico · 2.4 mi away · NPDES MO0113948Recent violation
- On Pointe Living WwtfMexico · 2.4 mi away · NPDES MO0054038Recent violation
- South Syde Estates Mhp WwtfMexico · 2.6 mi away · NPDES MO0083585Recent violation
- Lance L Cox WwtfMexico · 3 mi away · NPDES MO0106542Recent violation
- Sunset Hills Mhp WwtfMexico · 3 mi away · NPDES MO0127833Recent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Audrain County
Frequently asked questions about Teal Lake
Where is Teal Lake?
- Teal Lake is a lake in Audrain County, Missouri. Its water-quality measurements are published by Missouri DNR and shown on this page as reported.
What is the water quality of Teal Lake?
- Teal Lake in Audrain County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Water clarity: 2 ft visibility. Phosphorus: 109 µg/L. Chlorophyll-a (algae): 97.7 µg/L. Surface area: 78 acres.
Is Teal Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Teal Lake?
- No published bathymetric survey covers Teal Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 34 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 78 acres.
Are there boat ramps on Teal Lake?
- Teal Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Teal Lake (Mexico). Public access is listed as yes.
Can I fish at Teal Lake?
- Teal Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Missouri's fish and wildlife agency, so check its current regulations before you go.
Explore Teal Lake across LakeQuality
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Where this data comes from
3 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Missouri Dept. of Natural Resources
MDNR3 samples · 2020
Analytical methods
- Depth, Secchi disk in meters
- Nitrogen and Phosphorus, Total, Whole-water, Alkaline Persulfate Digest
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory