Waukomis Lake
Platte County, Missouri82 acresView mapDirections
Missouri DNR publishes the water-quality measurements for Waukomis Lake. Here is what has been measured.
- Eutrophic
- Impaired · Nutrients (phosphorus, nitrogen)
- 34 ft max depth
Waukomis Lake in Platte County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Water clarity: 4.7 ft visibility. Phosphorus: 26 µg/L. Chlorophyll-a (algae): 7.2 µg/L. Surface area: 82 acres.
Waukomis Lake is a 82-acre productive, nutrient-rich eutrophic lake in Platte County, Missouri with an estimated average depth of about 34 feet. Overall water quality is declining over recent sampling years. Compared to the 2 other monitored lakes in Platte County, Waukomis Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2022-09-24. 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. Waukomis Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Waukomis 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 Waukomis Lake
These are the measurements Missouri DNR publishes for Waukomis 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 4.7 ft. Phosphorus 26 µg/L. Chlorophyll-a 7.2 µg/L. TSI 52.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.7ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 26µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 7.2µg/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. | 52 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Waukomis Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Waukomis Lake typically sits around 78°F at the surface in September. Summer average is about 82°F. Usually warmest in Jul (about 83°F) and coldest in Apr (about 60°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (60°F) to its warmest (83°F).
Typical surface water temperature by month, from 70 field readings (2010–2022) via the EPA Water Quality Portal. See the full Waukomis Lake water temperature breakdown →
Lake Details
Max depth
~34 ft est.
Surface area
82 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Missouri has not published bathymetry for Waukomis Lake.
Lake Size & Watershed
Watershed (drainage) area
2 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.8 mi
HydroLAKES / HydroSHEDS
Elevation
951 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 Waukomis Lake
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Fishing Waukomis Lake
Water quality readings over time
3 seasons of samples on record (2020–2022). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening3 years
Phosphorus
Worsening+3 µg/L/yr3 years
Chlorophyll-a
Worsening+0.85 µg/L/yr3 years
Reservoir Info (USACE NID)
Waukomis Lake is a man-made reservoir impounded by the Lake Waukomis Dam (completed 1968), built primarily for recreation on the TR LINE CREEK; earth-type dam, 68 ft tall and 785 ft long.
- Surface area
- 82 ac
- Normal storage
- 2,292 ac-ft
- Max storage
- 2,292 ac-ft
- Drainage area
- 2.04 sq mi
- Hazard class
- High
- Owner
- LAKE WAUKOMIS HOME ASSN
Source: USACE National Inventory of Dams, NID ID MO10691 · Operator website
EPA Impairment Status
Waukomis 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: Aquatic life.
Source: EPA ATTAINS assessment unit MO_7072.00 · Official waterbody report
Nearby Lakes in Platte County
Frequently asked questions about Waukomis Lake
Where is Waukomis Lake?
- Waukomis Lake is a lake in Platte County, Missouri. Its water-quality measurements are published by Missouri DNR and shown on this page as reported.
What is the water quality of Waukomis Lake?
- Waukomis Lake in Platte County, Missouri has water-quality measurements published by Missouri DNR, shown here as reported. Water clarity: 4.7 ft visibility. Phosphorus: 26 µg/L. Chlorophyll-a (algae): 7.2 µg/L. Surface area: 82 acres.
Is Waukomis Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Waukomis Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
What is the water temperature of Waukomis Lake?
- Waukomis Lake typically sits around 78°F at the surface in September, from 70 EPA Water Quality Portal field readings (2010–2022). That is a typical value for the month, not a live reading.
How deep is Waukomis Lake?
- No published bathymetric survey covers Waukomis 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 82 acres.
Explore Waukomis Lake across LakeQuality
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Where this data comes from
60 measurements from 2 monitoring stations, 2020–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Univ. of Missouri, Columbia
UMC57 samples · 2020–2022 - Missouri Dept. of Natural Resources
MDNR3 samples · 2020
Analytical methods
- Depth, Secchi disk in meters
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- Nitrogen and Phosphorus, Total, Whole-water, Alkaline Persulfate Digest
Monitoring station identifiers (2)
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)