Grassy Lake is a productive, nutrient-rich eutrophic lake in Faulkner County, Arkansas. Water quality is graded F based on 1 sampling years through 2023. Compared to the 2 other monitored lakes in Faulkner County, Grassy Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Arkansas DNR, last sampled 2023-03-06. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 2.7 ft of visibility. Trophic State Index: 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.7 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Grassy Lake
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Fishing Grassy Lake
Location
County Ranking
Ranked #2 of 3 lakes in Faulkner County
Cleaner Lakes Within 30 Miles
Grassy Lake holds Grade F. 4 nearby lakes hold higher grades.
Nearby Lakes in Faulkner County
Explore Grassy Lake across LakeGrade
More Arkansas Lake Rankings
Other Grade F Lakes in Arkansas
Pulaski County · Clarity: 2.8 ft
Pulaski County · Clarity: 2.9 ft
Pulaski County · Clarity: 2.7 ft
Saline County · Clarity: 2.3 ft
Jefferson County · Very Poor
Grant County · Clarity: 1 ft
Eutrophic Lakes in Arkansas
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: 2023-03-06
Monitoring stations: 1