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

Orange County Lake Quality

North Carolina, 10 lakes, measured by NC DEQ

Orange County has 10 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. 7 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. Most monitored lakes in Orange County are productive, shallow basins; each lake page shows its own phosphorus and chlorophyll-a readings beside the EPA condition class.

Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Lake Ben Johnson has the lowest nutrient and algae readings in the county.

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Where to stay near Orange County

Top-rated places to stay near Orange County

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All Lakes in Orange County

10 lakes · 7 ranked on readings, 3 without enough sampling7 lakes ranked on readings · 3 without enough sampling, hidden

#LakeClarityPhosphorusAlgaeTrophicAccess
1Lake Ben JohnsonOrange3.3 ft50 µg/L6.5 µg/LNo recent samplesNot recorded
2Corporation LakeOrange2.2 ft50 µg/L11 µg/LNo recent samplesNot recorded
3West Fk Eno R ReservoirOrange3.8 ft35.5 µg/L14.9 µg/LNo recent samplesNot recorded
4Cane Creek ReservoirOrange3.6 ft30 µg/L19.5 µg/LNo recent samplesNot recorded
5West Fork Eno River ReservoirOrange3.8 ft50 µg/L30 µg/LNo recent samplesNot recorded
6University LakeOrange2.3 ft40 µg/L33.3 µg/LNo recent samplesNot recorded
7Lake OrangeOrange2.9 ft50 µg/L38 µg/LNo recent samplesNot recorded
University LakeOrangeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Eastwood LakeOrangeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
Lake MichaelOrangeNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.

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Source: the North Carolina Department of Environmental Quality. See data sources.