What is the water quality grade for Abiquiu Reservoir?

Abiquiu Reservoir in Rio Arriba County, New Mexico received a water quality grade of B (Good). Water clarity: 3.3 ft visibility. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 2.7 µg/L.

Is Abiquiu Reservoir safe to swim in?

Good for swimming, clear water with low algae levels. Abiquiu Reservoir has an overall water quality grade of B. Algae concentration (chlorophyll-a) is 2.7 µg/L. Always check local health department advisories before swimming.

Rio Arriba County, New Mexico

Abiquiu Reservoir

Grade BGood · 3.3 ft clarity

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Eutrophic

Abiquiu Reservoir is a productive, nutrient-rich eutrophic lake in Rio Arriba County, New Mexico. Water quality is graded B based on 2 sampling years through 2024. Compared to the 15 other monitored lakes in Rio Arriba County, Abiquiu Reservoir ranks #5 for water quality.

Source: EPA Water Quality Portal sampling records, New Mexico DNR, last sampled 2024-09-12. 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: 40 µg/L. Chlorophyll-a: 2.7 µg/L. Trophic State Index: 53.

Metric	Value	Grade
Water Clarity (Secchi Depth)	3.3 ft	D
Phosphorus	40 µg/L	C
Chlorophyll-a (Algae)	2.7 µg/L	A
Trophic State Index (TSI)	53	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Abiquiu Reservoir

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