What is the water quality grade for Lake Kirby?

Lake Kirby in Taylor County, Texas received a water quality grade of F (Very Poor). Water clarity: 0.7 ft visibility. Phosphorus: 125 µg/L. Chlorophyll-a (algae): 124 µg/L.

Is Lake Kirby safe to swim in?

Avoid swimming, very poor water quality, potential algae toxins. Lake Kirby has an overall water quality grade of F. Algae concentration (chlorophyll-a) is 124 µg/L. Always check local health department advisories before swimming.

Taylor County, Texas

Lake Kirby

Grade FVery Poor · 0.7 ft clarity

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Hypereutrophic

Lake Kirby is a highly nutrient-loaded hypereutrophic lake in Taylor County, Texas. Water quality is graded F based on 2 sampling years through 2025.

Source: EPA Water Quality Portal sampling records, Texas DNR, last sampled 2025-11-17. Grade methodology: LakeGrade methodology.

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Swimming Safety

Avoid swimming, very poor water quality, potential algae toxins

Water Quality Grade: F, Very Poor

Very murky, less than 0.7 ft of visibility. Phosphorus level: 125 µg/L. Chlorophyll-a: 124 µg/L. Trophic State Index: 78.

Metric	Value	Grade
Water Clarity (Secchi Depth)	0.7 ft	F
Phosphorus	125 µg/L	F
Chlorophyll-a (Algae)	124 µg/L	F
Trophic State Index (TSI)	78	Hypereutrophic

Very high nutrients, dense algae, poor clarity

Where to stay near Lake Kirby

Compare lakeside cabins, hotels, and vacation rentals near Lake Kirby in Taylor County, Texas — 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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