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LakeQuality
C

Burlington County Lake Quality

New Jersey, 15 lakes, average grade C (Fair)

Burlington County's 15 graded lakes fall in the moderate-density bracket for New Jersey. The county-level average smooths over real differences — a single agricultural watershed near the southwest corner can pull the average down even if the rest of the county runs clean. Burlington County averages to a C. The distribution behind that average matters more than the letter: a few stressed lakes versus many decent ones can produce the same average as the inverse.

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 Lake Absegami (A); the most-stressed is Country Lake (F).

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All Lakes in Burlington County

15 lakes · 11 graded, 4 not rated11 graded lakes · 4 not rated, hidden

#LakeGradeClarityPhosphorusAlgaeTrophicAccess
1ALake AbsegamiBurlingtonA3.3 ft7 µg/L1.4 µg/LNo recent samplesNot recorded
2AMt. Misery LakeBurlingtonA4.4 ft19.8 µg/L3.2 µg/LNo recent samplesNot recorded
3AOswego LakeBurlingtonA2.1 ft21.2 µg/L2.5 µg/LNo recent samplesNot recorded
4BLee Bros PondBurlingtonB1 ft42.1 µg/L7.9 µg/LNo recent samplesNot recorded
5CIndian Mills LakeBurlingtonC1.6 ft56.8 µg/L24.1 µg/LNo recent samplesNot recorded
6CTimber LakeBurlingtonC4.6 ft25.8 µg/L19.9 µg/LNo recent samplesNot recorded
7CUnl LakeBurlingtonC1.8 ft143.5 µg/L2.3 µg/LNo recent samplesNot recorded
8DBig Pine LakeBurlingtonD4.9 ft80 µg/L13.3 µg/LNo recent samplesNot recorded
9DSmithville Dock LakeBurlingtonD1.6 ft90 µg/LNo recent samplesNo recent samplesNot recorded
10FCountry LakeBurlingtonF0.7 ft260 µg/L37.2 µg/LNo recent samplesNot recorded
11FEagle LakeBurlingtonF1.1 ft190 µg/L60.4 µg/LNo recent samplesNot recorded
NRCutts Bros PondBurlingtonNR1.6 ft13.5 µg/L20.3 µg/LNo recent samplesNot recorded
NRDecou PondBurlingtonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRGoose PondBurlingtonNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRSmithville Mid-LakeBurlingtonNR0.7 ft90 µg/LNo recent samplesNo recent samplesNot recorded

NR = not rated: the monitoring record does not meet the evidence bar for a grade. 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.