Lake of the Oaks
Clark County, Missouri65 acresView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- 39 ft max depth
- Limited data
Lake of the Oaks in Clark County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 47 µg/L. Surface area: 65 acres.
- Max depth
- ~39 ft est.
- Area
- 65 acres
- Phosphorus
- 47 µg/L
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Watch Lake of the Oaks’s letter
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Why Lake of the Oaks has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lake of the Oaks, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded phosphorus, but not water clarity and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by Missouri DNR and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake of the Oaks is a 65-acre lake in Clark County, Missouri with an estimated average depth of about 39 feet.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2022-07-28. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Lake of the Oaks
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Phosphorus 47 µg/L. TSI 60.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 47 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~39 ft est. |
| Average Depth | ~12 ft est. |
| Surface Area | 65 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 Lake of the Oaks.
Lake Size & Watershed
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.
Fishing Lake of the Oaks
Reservoir Info (USACE NID)
Lake of the Oaks is a man-made reservoir impounded by the Lake of The Oaks Dam (completed 1962), built primarily for recreation on the TR-BUCK RUN CR; earth-type dam, 34 ft tall and 990 ft long.
- Surface area
- 65 ac
- Normal storage
- 880 ac-ft
- Max storage
- 2,141 ac-ft
- Drainage area
- 900 sq mi
- Hazard class
- High
- Owner
- BEN KNAPP
Source: USACE National Inventory of Dams, NID ID MO10133 · Operator website
Graded lakes near Lake of the Oaks
Lake of the Oaks has no grade, but these lakes within a short drive do.
Nearby Lakes in Clark County
Frequently asked questions about Lake of the Oaks
Where is Lake of the Oaks?
- Lake of the Oaks is a lake in Clark County, Missouri. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Lake of the Oaks?
- Lake of the Oaks in Clark County, Missouri is not rated for water quality — its monitoring record does not meet the evidence bar. Phosphorus: 47 µg/L. Surface area: 65 acres.
Is Lake of the Oaks safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Lake of the Oaks?
- No published bathymetric survey covers Lake of the Oaks, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 39 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 65 acres.
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Where this data comes from
1 measurement from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Missouri Dept. of Natural Resources
MDNR1 sample · 2022
Analytical methods
- Nitrogen and Phosphorus, Total, Whole-water, Alkaline Persulfate Digest
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
Lake size & watershed from HydroLAKES (HydroSHEDS)