Stone County, Missouri · 36.63°N · Water Quality Report Card
Table Rock Lake
Table Rock Lake in Stone County, Missouri has a water quality grade of A (Excellent). Water clarity: 4.9 ft visibility. Phosphorus: 9.8 µg/L. Chlorophyll-a (algae): 5.3 µg/L.
- Clarity
- 4.9 ft
- Mean depth
- ~119 ft est.
- Type
- Mesotrophic
- Trend
- ↓ Declining
Table Rock Lake is a mesotrophic lake in Stone County, Missouri with an estimated average depth of about 119 feet. Water quality is graded A based on 2 sampling years through 2024. Overall water quality is declining over recent sampling years. Compared to the 14 other monitored lakes in Stone County, Table Rock Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2024-09-17. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A (Excellent)
Murky, only visible to about 4.9 ft. Phosphorus level: 9.8 µg/L. Chlorophyll-a: 5.3 µg/L. Trophic State Index: 46.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.9 ft | |
| Phosphorus | 9.8 µg/L | Good |
| Chlorophyll-a (Algae) | 5.3 µg/L | Good |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~119 ft est. |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Missouri has not published bathymetry for Table Rock Lake.
Where to stay near Table Rock Lake
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Fishing Table Rock Lake
Water Quality Trend: ↓ Declining
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.19 m/yr | 3 |
| Phosphorus | → Stable | +0.1 µg/L/yr | 3 |
| Chlorophyll-a | ↓ Declining | +0.45 µg/L/yr | 2 |
Location
County Ranking
Ranked #3 of 15 lakes in Stone County
Nearby Lakes in Stone County
Explore Table Rock Lake across LakeGrade
Species activity outlook by water temperature and season
Top lakes and where to stay in the Table Rock & Branson Lakes area
Where to stay at Missouri's top lakes, each with its grade
Moderate nutrients, good water quality
Missouri's cleanest and most-polluted lakes, ranked
More Missouri Lake Rankings
Other Grade A Lakes in Missouri
Mesotrophic Lakes in Missouri
More records, surveys & data sources
EPA Impairment Status
Table Rock Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit MO_7313.00 · Official waterbody report
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.
Where this data comes from
21 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Univ. of Missouri, Columbia
UMC21 samples · 2020–2024
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
Monitoring station identifiers (1)
Grade thresholds come from the U.S. EPA National Lakes Assessment 2022 Technical Support Document (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated.
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2024-09-17
Monitoring stations: 1