Nla Lake is a productive, nutrient-rich eutrophic lake in Cowley County, Kansas. Water quality is graded C based on 2 sampling years through 2017. Compared to the 4 other monitored lakes in Cowley County, Nla Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Kansas DNR, last sampled 2017-06-29. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swim with caution, moderate algae may be present
Water Quality Grade: C, Fair
Very murky, less than 2.7 ft of visibility. Phosphorus level: 36 µg/L. Chlorophyll-a: 25.5 µg/L. Trophic State Index: 60.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.7 ft | F |
| Phosphorus | 36 µg/L | C |
| Chlorophyll-a (Algae) | 25.5 µg/L | D |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Nla Lake
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Fishing Nla Lake
Location
County Ranking
Ranked #3 of 5 lakes in Cowley County
Cleaner Lakes Within 30 Miles
Nla Lake holds Grade C. 2 nearby lakes hold higher grades.
- CCowley Co State Fishing LakeCowley County · 0.5 mi · Higher overall water quality score
- CWinfield City LakeCowley County · 18.7 mi · Higher overall water quality score
Nearby Lakes in Cowley County
Explore Nla Lake across LakeGrade
More Kansas Lake Rankings
Other Grade C Lakes in Kansas
Elk County · Clarity: 1.7 ft
Chautauqua County · Clarity: 3.6 ft
Chautauqua County · Clarity: 4.9 ft
Elk County · Clarity: 3.3 ft
Butler County · Clarity: 2.8 ft
Greenwood County · Clarity: 1.9 ft
Eutrophic Lakes in Kansas
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