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LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water
F

Perry County Lake Quality

Arkansas, 6 lakes, average grade F (Algae-prone)

Perry County holds 6 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. 1 of those lake carry an A–F grade. The county-level summary describes that subset, not every water body listed. The county average is F — the most-stressed bracket in our rubric. Most monitored lakes here show persistent nutrient loading and algal pressure.

The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Harris Break Lake (F); the most-stressed is Harris Break Lake (F).

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All Lakes in Perry County

6 lakes · 1 graded, 5 not rated1 graded lake · 5 not rated, hidden

#LakeGradeClarityPhosphorusAlgaeTrophicAccess
1FHarris Break LakePerryFNo recent samples40 µg/L31.5 µg/LNo recent samples✓ Public
NRRock Creek LakePerryNR6.2 ftNo recent samplesNo recent samplesNo recent samples✓ Public
NRSouth Fourche LakePerryNR4.1 ftNo recent samplesNo recent samplesNo recent samplesNot recorded
NRLake SylviaPerryNR4 ftNo recent samplesNo recent samplesNo recent samplesNot recorded
NRCove Creek LakePerryNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRSouth Fouche Site Seven ReservoirPerryNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.

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Source: EPA National Aquatic Resource Surveys, 2026.