Table Rock L. Lake
Barry County, MissouriView mapDirections
Nutrients and algae sit mid-range for this region.
↓ down from B at the last regrade
- Mesotrophic
- #4 of 9 in the county
- Public access
Table Rock L. Lake in Barry County, Missouri has a water quality grade of C (Fair). Water clarity: 5.5 ft visibility. Phosphorus: 10.3 µg/L. Chlorophyll-a (algae): 6.1 µg/L.
- Clarity
- 5.5 ft
- Typical in September
- 79°F
- Type
- Mesotrophic
- Trend
- ↑ Improving
- Public access
- Yes
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Table Rock L. 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. Limited fish-species data available. Public access is available. Compared to the 8 other monitored lakes in Barry County, Table Rock L. Lake ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2024-09-17. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyModerate
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The C is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: C (Fair)
Murky, only visible to about 5.5 ft. Phosphorus 10.3 µg/L. Chlorophyll-a 6.1 µg/L. TSI 46. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.5 ft | Not graded |
| Phosphorus | 10.3 µg/L | Good |
| Chlorophyll-a (Algae) | 6.1 µg/L | Fair |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Water Temperature
Table Rock L. Lake typically sits around 79°F at the surface in September. Summer average is about 81°F. Usually warmest in Jul (about 83°F) and coldest in Apr (about 62°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 78 field readings (2010–2024) via the EPA Water Quality Portal. See the full Table Rock L. Lake water temperature breakdown →
Fishing Table Rock L. Lake
Water Quality Trend: ↑ Improving
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.087 m/yr | 4 |
| Phosphorus | ↑ Improving | -0.35 µg/L/yr | 4 |
| Chlorophyll-a | ↑ Improving | -0.39 µg/L/yr | 3 |
Regulated Pollution Sources Nearby
2 EPA-permitted facilities operate within about 5 miles of Table Rock L. Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Ocwc Lake Point Landing WwtpGolden · 1.4 mi away · NPDES MO0137073Recent violation
- Chigger Hill Coveside WwtfEagle Rock · 1.8 mi away · NPDES MO0133418
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.
County Ranking
Ranked #4 of 9 lakes in Barry County
Nearby Lakes With Higher Grades
Table Rock L. Lake holds Grade C. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.
See full comparison →Nearby Lakes in Barry County
Frequently asked questions about Table Rock L. Lake
Where is Table Rock L. Lake?
- Table Rock L. Lake is a lake in Barry County, Missouri. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Table Rock L. Lake?
- Table Rock L. Lake in Barry County, Missouri has a water quality grade of C (Fair). Water clarity: 5.5 ft visibility. Phosphorus: 10.3 µg/L. Chlorophyll-a (algae): 6.1 µg/L.
Is Table Rock L. Lake safe to swim in?
- The C is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Table Rock L. Lake?
- Table Rock L. Lake typically sits around 79°F at the surface in September, from 78 EPA Water Quality Portal field readings (2010–2024). That is a typical value for the month, not a live reading.
Explore Table Rock L. Lake across LakeQuality
Species activity outlook by water temperature and season
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Where to stay at Missouri's top lakes, each with its grade
Moderate nutrients, good water quality
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Where this data comes from
65 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
UMC65 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 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
Regulated discharger data from EPA ECHO (ICIS-NPDES)