Brock Lake is a productive, nutrient-rich eutrophic lake in Van Buren County, Arkansas. Water quality is graded D based on 3 sampling years through 2014. Compared to the 1 other monitored lakes in Van Buren County, Brock Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Arkansas DNR, last sampled 2014-11-19. 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
Very murky, less than 2.6 ft of visibility. Phosphorus level: 32.5 µg/L. Chlorophyll-a: 12.6 µg/L. Trophic State Index: 58.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.6 ft | F |
| Phosphorus | 32.5 µg/L | C |
| Chlorophyll-a (Algae) | 12.6 µg/L | C |
| Trophic State Index (TSI) | 58 | Eutrophic |
High nutrients, frequent algae, reduced clarity
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Fishing Brock Lake
Location
County Ranking
Ranked #2 of 2 lakes in Van Buren County
Cleaner Lakes Within 30 Miles
Brock Lake holds Grade D. 3 nearby lakes hold higher grades.
- BHuckleberry ReservoirPope County · 23.5 mi · Two grade letters higher (D → B)
- BDriver Creek LakeVan Buren County · 4.3 mi · Two grade letters higher (D → B)
- CBrewer LakeConway County · 21.4 mi · Higher grade (D → C)
Nearby Lakes in Van Buren County
Explore Brock Lake across LakeGrade
More Arkansas Lake Rankings
Other Grade D 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: 2014-11-19
Monitoring stations: 1