What is the water quality grade for Nla Lake?

Nla Lake in San Juan County, New Mexico received a water quality grade of A (Excellent). Water clarity: 14.4 ft visibility. Phosphorus: 13.9 µg/L. Chlorophyll-a (algae): 0.3 µg/L.

Is Nla Lake safe to swim in?

Excellent for swimming, crystal clear water with minimal algae. Nla Lake has an overall water quality grade of A. Algae concentration (chlorophyll-a) is 0.3 µg/L. Always check local health department advisories before swimming.

San Juan County, New Mexico · 36.69°N

Nla Lake

Grade AExcellent · 14.4 ft clarity

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Oligotrophic

Nla Lake is a cold, clear oligotrophic lake in San Juan County, New Mexico. Water quality is graded A based on 2 sampling years through 2017. Compared to the 6 other monitored lakes in San Juan County, Nla Lake ranks #2 for water quality.

Source: EPA Water Quality Portal sampling records, New Mexico DNR, last sampled 2017-07-14. Grade methodology: LakeGrade methodology.

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Swimming Safety

Excellent for swimming, crystal clear water with minimal algae

Water Quality Grade: A, Excellent

Good clarity, visible to about 14.4 ft. Phosphorus level: 13.9 µg/L. Chlorophyll-a: 0.3 µg/L. Trophic State Index: 34.

Metric	Value	Grade
Water Clarity (Secchi Depth)	14.4 ft	A
Phosphorus	13.9 µg/L	A
Chlorophyll-a (Algae)	0.3 µg/L	A
Trophic State Index (TSI)	34	Oligotrophic

Low nutrients, clear water, excellent for swimming

Where to stay near Nla Lake

Compare lakeside cabins, hotels, and vacation rentals near Nla Lake in San Juan County, New Mexico — 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.

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