What is the water quality grade for Walter E Long Lake Eastern Arm?

Walter E Long Lake Eastern Arm in Travis County, Texas received a water quality grade of C (Fair). Water clarity: 4.2 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 15 µg/L.

Is Walter E Long Lake Eastern Arm safe to swim in?

Generally safe for swimming, moderate water quality. Walter E Long Lake Eastern Arm has an overall water quality grade of C. Algae concentration (chlorophyll-a) is 15 µg/L. Always check local health department advisories before swimming.

Travis County, Texas

Walter E Long Lake Eastern Arm

Grade CFair · 4.2 ft clarity

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Eutrophic

Walter E Long Lake Eastern Arm is a productive, nutrient-rich eutrophic lake in Travis County, Texas. Water quality is graded C based on 2 sampling years through 2024. Compared to the 2 other monitored lakes in Travis County, Walter E Long Lake Eastern Arm ranks #1 for water quality.

Source: EPA Water Quality Portal sampling records, Texas DNR, last sampled 2024-07-31. Grade methodology: LakeGrade methodology.

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Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Murky, only visible to about 4.2 ft. Phosphorus level: 30 µg/L. Chlorophyll-a: 15 µg/L. Trophic State Index: 56.

Metric	Value	Grade
Water Clarity (Secchi Depth)	4.2 ft	D
Phosphorus	30 µg/L	C
Chlorophyll-a (Algae)	15 µg/L	C
Trophic State Index (TSI)	56	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Walter E Long Lake Eastern Arm

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