What is the water quality grade for Table Rock Lake?

Table Rock Lake in Barry County, Missouri received a water quality grade of D (Poor). Water clarity: 2.3 ft visibility. Phosphorus: 67 µg/L. Chlorophyll-a (algae): 21 µg/L.

Is Table Rock Lake safe to swim in?

Swimming not recommended, poor water quality with high algae risk. Table Rock Lake has an overall water quality grade of D. Algae concentration (chlorophyll-a) is 21 µg/L. Always check local health department advisories before swimming.

Barry County, Missouri · 36.51°N

Table Rock Lake

Grade DPoor · 2.3 ft clarity

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Eutrophic

Table Rock Lake is a productive, nutrient-rich eutrophic lake in Barry County, Missouri. Water quality is graded D based on 3 sampling years through 2024. Overall water quality is declining 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 Lake ranks #9 for water quality.

Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2024-09-20. Grade methodology: LakeGrade methodology.

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Swimming Safety

Swimming not recommended, poor water quality with high algae risk

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Water Quality Grade: D, Poor

Very murky, less than 2.3 ft of visibility. Phosphorus level: 67 µg/L. Chlorophyll-a: 21 µg/L. Trophic State Index: 63.

Metric	Value	Grade
Water Clarity (Secchi Depth)	2.3 ft	F
Phosphorus	67 µg/L	D
Chlorophyll-a (Algae)	21 µg/L	D
Trophic State Index (TSI)	63	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Table Rock Lake

Compare lakeside cabins, hotels, and vacation rentals near Table Rock Lake in Barry County, Missouri — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

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Fishing Table Rock Lake

→ Table Rock Lake fishing regulations (limits, seasons, special rules)

Water Quality Trend: ↓ Declining

Based on 5 years of monitoring data (2020-2025).

Metric	Trend	Change/Year	Years
Water Clarity	↓ Declining	-0.125 m/yr	5
Phosphorus	↓ Declining	+4.45 µg/L/yr	5
Chlorophyll-a	↓ Declining	+3.8 µg/L/yr	5

See year-by-year chart →

Water Temperature

Table Rock Lake averages about 83°F at the surface in summer, usually warmest in Jul (about 86°F) and coldest in Apr (about 62°F). These are typical values by month — not a live reading.