What is the water quality grade for Navajo Reservoir Negro Canyon?

Navajo Reservoir Negro Canyon in San Juan County, New Mexico received a water quality grade of A (Excellent). Water clarity: 6.5 ft visibility. Chlorophyll-a (algae): 2.3 µg/L.

Is Navajo Reservoir Negro Canyon safe to swim in?

Excellent for swimming, crystal clear water with minimal algae. Navajo Reservoir Negro Canyon has an overall water quality grade of A. Algae concentration (chlorophyll-a) is 2.3 µg/L. Always check local health department advisories before swimming.

San Juan County, New Mexico

Navajo Reservoir Negro Canyon

Grade AExcellent · 6.5 ft clarity

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Limited DataMesotrophic

Navajo Reservoir Negro Canyon is a mesotrophic lake in San Juan County, New Mexico. Water quality is graded A based on 1 sampling years through 2016. Compared to the 6 other monitored lakes in San Juan County, Navajo Reservoir Negro Canyon ranks #3 for water quality.

Source: EPA Water Quality Portal sampling records, New Mexico DNR, last sampled 2016-07-20. Grade methodology: LakeGrade methodology.

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Murky, only visible to about 6.5 ft. Chlorophyll-a: 2.3 µg/L. Trophic State Index: 44.

Metric	Value	Grade
Water Clarity (Secchi Depth)	6.5 ft	C
Phosphorus	No data
Chlorophyll-a (Algae)	2.3 µg/L	A
Trophic State Index (TSI)	44	Mesotrophic

Moderate nutrients, good water quality

Where to stay near Navajo Reservoir Negro Canyon

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