What is the water quality grade for Marine Creek Lake?

Marine Creek Lake in Tarrant County, Texas received a water quality grade of B (Good). Water clarity: 3.3 ft visibility. Phosphorus: 22.7 µg/L. Chlorophyll-a (algae): 14.9 µg/L.

Is Marine Creek Lake safe to swim in?

Good for swimming, clear water with low algae levels. Marine Creek Lake has an overall water quality grade of B. Algae concentration (chlorophyll-a) is 14.9 µg/L. Always check local health department advisories before swimming.

Tarrant County, Texas

Marine Creek Lake

Grade BGood · 3.3 ft clarity

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Eutrophic

Marine Creek Lake is a productive, nutrient-rich eutrophic lake in Tarrant County, Texas. Water quality is graded B based on 2 sampling years through 2026. Compared to the 2 other monitored lakes in Tarrant County, Marine Creek Lake ranks #1 for water quality.

Source: EPA Water Quality Portal sampling records, Texas DNR, last sampled 2026-01-12. Grade methodology: LakeGrade methodology.

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Swimming Safety

Good for swimming, clear water with low algae levels

Water Quality Grade: B, Good

Very murky, less than 3.3 ft of visibility. Phosphorus level: 22.7 µg/L. Chlorophyll-a: 14.9 µg/L. Trophic State Index: 55.

Metric	Value	Grade
Water Clarity (Secchi Depth)	3.3 ft	D
Phosphorus	22.7 µg/L	B
Chlorophyll-a (Algae)	14.9 µg/L	C
Trophic State Index (TSI)	55	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Marine Creek Lake

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