Barry County, Missouri · 36.50°N · Water Quality Report Card
Table Rock Lake
Table Rock Lake in Barry County, Missouri has a water quality grade of C (Fair). Water clarity: 3.3 ft visibility. Phosphorus: 30.5 µg/L. Chlorophyll-a (algae): 6.5 µg/L.
- Clarity
- 3.3 ft
- Type
- Mesotrophic
- Trend
- ↑ Improving
Table Rock Lake is a mesotrophic lake in Barry County, Missouri. Water quality is graded C based on 2 sampling years through 2024. Overall water quality is improving over recent sampling years. Compared to the 8 other monitored lakes in Barry County, Table Rock Lake ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2024-09-18. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C (Fair)
Very murky, less than 3.3 ft of visibility. Phosphorus level: 30.5 µg/L. Chlorophyll-a: 6.5 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.3 ft | |
| Phosphorus | 30.5 µg/L | Fair |
| Chlorophyll-a (Algae) | 6.5 µg/L | Fair |
| Trophic State Index (TSI) | 54 | Mesotrophic |
Moderate nutrients, good water quality
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Fishing Table Rock Lake
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.039 m/yr | 5 |
| Phosphorus | ↑ Improving | -2.18 µg/L/yr | 5 |
| Chlorophyll-a | ↑ Improving | -0.58 µg/L/yr | 5 |
Location
County Ranking
Ranked #5 of 9 lakes in Barry County
Cleaner Lakes Within 30 Miles
Table Rock Lake holds Grade C. 2 nearby lakes hold higher grades.
- ATable Rock L. Ab. Carter Br. LakeBarry County · 5.6 mi · Two grade letters higher (C → A)
- ATable Rock Lk. Btwn Campbell Point Rd And Hendrickson School Rd LakeStone County · 7.5 mi · Two grade letters higher (C → A)
Nearby Lakes in Barry 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 C Lakes in Missouri
Mesotrophic Lakes in Missouri
More records, surveys & data sources
Where this data comes from
102 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
UMC102 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
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2024-09-18
Monitoring stations: 1