What is the water quality grade for Nla Lake?

Nla Lake in Sevier County, Utah received a water quality grade of D (Poor). Water clarity: 4.6 ft visibility. Chlorophyll-a (algae): 39.2 µg/L.

Is Nla Lake safe to swim in?

Swimming not recommended, poor water quality with high algae risk. Nla Lake has an overall water quality grade of D. Algae concentration (chlorophyll-a) is 39.2 µg/L. Always check local health department advisories before swimming.

Sevier County, Utah · 38.60°N

Nla Lake

Grade DPoor · 4.6 ft clarity

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Eutrophic

Nla Lake is a productive, nutrient-rich eutrophic lake in Sevier County, Utah. Water quality is graded D based on 2 sampling years through 2017. Compared to the 12 other monitored lakes in Sevier County, Nla Lake ranks #10 for water quality.

Source: EPA Water Quality Portal sampling records, Utah DNR, last sampled 2017-06-29. Grade methodology: LakeGrade methodology.

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Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Murky, only visible to about 4.6 ft. Chlorophyll-a: 39.2 µg/L. Trophic State Index: 61.

Metric	Value	Grade
Water Clarity (Secchi Depth)	4.6 ft	D
Phosphorus	No data
Chlorophyll-a (Algae)	39.2 µg/L	F
Trophic State Index (TSI)	61	Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Nla Lake

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Fishing Nla Lake

→ Nla Lake fishing regulations (limits, seasons, special rules)

Location

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County Ranking

Ranked #10 of 13 lakes in Sevier County

Cleaner Lakes Within 30 Miles

Nla Lake holds Grade D. 2 nearby lakes hold higher grades.

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Nearby Lakes in Sevier County

Explore Nla Lake across LakeGrade

Lake Fishing Forecast

Species activity outlook by water temperature and season

Eutrophic Lakes

High nutrients, frequent algae, reduced clarity

The State of Utah's Lakes

Utah's cleanest and most-polluted lakes, ranked

More Utah Lake Rankings

Cleanest lakes in Utah

Top 25 by overall water quality score

Clearest lakes in Utah

Top 25 by Secchi water clarity

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Grade A/B + low algae filter

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Panfish-rich, public access

All Utah lakes

Full state directory

Other Grade D Lakes in Utah

Mill Meadow Reservoir

Wayne County · Clarity: 5.9 ft

Piute Reservoir

Piute County · Clarity: 1 ft

Panguitch Lake

Garfield County · Clarity: 1.5 ft

Panguitch L Shore Lake

Garfield County · Clarity: 5.7 ft

Panguitch Lake

Garfield County · Clarity: 1.5 ft

Lake Powell Goodhope Bay Midchannel

Garfield County · Clarity: 6.1 ft

Eutrophic Lakes in Utah

Mill Meadow Reservoir Piute Reservoir Otter Creek Reservoir Gunnison Reservoir

More records, surveys & data sources

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2017-06-29

Monitoring stations: 1

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