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LakeQuality
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F

Nash County Lake Quality

North Carolina, 4 lakes, average grade F (Algae-prone)

Nash County has 4 monitored lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. 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 Tar River Reservoir (F); the most-stressed is Tar River Reservoir (F).

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All Lakes in Nash County

4 lakes · 1 graded, 3 not rated1 graded lake · 3 not rated, hidden

#LakeGradeClarityPhosphorusAlgaeTrophicAccess
1FTar River ReservoirNashFNo recent samples70 µg/L33 µg/LNo recent samples✓ Public
NRCamp Charles LakeNashNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRBoddies MillpondNashNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRTar River ReservoirNashNRNo 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.