Dierks Lake is a productive, nutrient-rich eutrophic lake in Howard County, Arkansas. Water quality is graded C based on 3 sampling years through 2019. Compared to the 2 other monitored lakes in Howard County, Dierks Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Arkansas DNR, last sampled 2019-08-19. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swim with caution, moderate algae may be present
Water Quality Grade: C, Fair
Murky, only visible to about 4.4 ft. Phosphorus level: 45 µg/L. Chlorophyll-a: 19.7 µg/L. Trophic State Index: 58.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.4 ft | D |
| Phosphorus | 45 µg/L | C |
| Chlorophyll-a (Algae) | 19.7 µg/L | C |
| Trophic State Index (TSI) | 58 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Dierks Lake
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Fishing Dierks Lake
Location
County Ranking
Ranked #2 of 3 lakes in Howard County
Cleaner Lakes Within 30 Miles
Dierks Lake holds Grade C. 2 nearby lakes hold higher grades.
- CNla LakeHoward County · 7.7 mi · Higher overall water quality score
- CLake GreesonPike County · 19.6 mi · Higher overall water quality score
Nearby Lakes in Howard County
Explore Dierks Lake across LakeGrade
More Arkansas Lake Rankings
Other Grade C Lakes in Arkansas
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: 2019-08-19
Monitoring stations: 2