What is the water quality grade for Lake Waco?

Lake Waco in McLennan County, Texas received a water quality grade of C (Fair). Water clarity: 2.3 ft visibility. Phosphorus: 31.1 µg/L. Chlorophyll-a (algae): 39.8 µg/L.

Is Lake Waco safe to swim in?

Swim with caution, moderate algae may be present. Lake Waco has an overall water quality grade of C. Algae concentration (chlorophyll-a) is 39.8 µg/L. Always check local health department advisories before swimming.

McLennan County, Texas

Lake Waco

Grade CFair · 2.3 ft clarity

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Eutrophic

Lake Waco is a productive, nutrient-rich eutrophic lake in McLennan County, Texas. Water quality is graded C based on 2 sampling years through 2025. Compared to the 2 other monitored lakes in McLennan County, Lake Waco ranks #2 for water quality.

Source: EPA Water Quality Portal sampling records, Texas DNR, last sampled 2025-11-04. Grade methodology: LakeGrade methodology.

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Swimming Safety

Swim with caution, moderate algae may be present

Water Quality Grade: C, Fair

Very murky, less than 2.3 ft of visibility. Phosphorus level: 31.1 µg/L. Chlorophyll-a: 39.8 µg/L. Trophic State Index: 62.

Metric	Value	Grade
Water Clarity (Secchi Depth)	2.3 ft	F
Phosphorus	31.1 µg/L	C
Chlorophyll-a (Algae)	39.8 µg/L	D
Trophic State Index (TSI)	62	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Lake Waco

Compare lakeside cabins, hotels, and vacation rentals near Lake Waco in McLennan 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.

Top-rated places to stay near Lake Waco