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

Washington County Lake Quality

Vermont, 29 lakes, measured by Vermont DEC

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. 9 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. On average, Washington County lakes carry some of the lowest phosphorus and chlorophyll-a readings in Vermont, with clear summer transparency across most monitored basins.

The county's lakes lean shallow, which makes the readings sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest measured lake is Berlin Pond.

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Quick Answers for Washington County

Cleanest lakes in Washington County →Cleanest lakes in Vermont →Best swimming lakes in Vermont →

Planning a trip? Check special fishing regulations for Berlin Pond — or check the official Vermont fishing regulations.

All Lakes in Washington County

29 lakes · 9 ranked on readings, 20 without enough sampling9 lakes ranked on readings · 20 without enough sampling, hidden

Include not-rated lakes (20)

#	Lake	Clarity	Phosphorus	Algae	Trophic	Access
1	Berlin PondWashington	21.7 ft	7.1 µg/L	1.1 µg/L	No recent samples	Not recorded
2	Sabin PondWashington	15.7 ft	9.7 µg/L	2.1 µg/L	No recent samples	✓ Public
3	Curtis PondWashington	15.3 ft	13.2 µg/L	3.2 µg/L	No recent samples	✓ Public
4	Lake MirrorWashington	21.3 ft	10.8 µg/L	2.6 µg/L	No recent samples	✓ Public
5	Lake GreenwoodWashington	18 ft	11.1 µg/L	3.3 µg/L	No recent samples	✓ Public
6	Forest LakeWashington	25.6 ft	7 µg/L	1.2 µg/L	No recent samples	✓ Public
7	Waterbury ReservoirWashington	No recent samples	9.1 µg/L	2.6 µg/L	No recent samples	Not recorded
8	East Long PondWashington	20.7 ft	13.7 µg/L	2.8 µg/L	No recent samples	Not recorded
9	Valley LakeWashington	24.4 ft	17.2 µg/L	2.9 µg/L	No recent samples	✓ Public
	Nichols PondWashington	23.3 ft	8.6 µg/L	No recent samples	No recent samples	Not recorded
	Shadow PondWashington	27.9 ft	9.4 µg/L	1.8 µg/L	No recent samples	✓ Public
	Mollys Falls ReservoirWashington	10.8 ft	No recent samples	No recent samples	No recent samples	✓ Public
	Cranberry Meadow PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Blueberry LakeWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Turtlehead PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Kettle PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Coits PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Wrightsville ReservoirWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Bancroft PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	North Montpelier PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Sodom PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Adamant PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Bliss PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Worcester PondsWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Greenwood LakeWashington	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Buck LakeWashington	No recent samples	No recent samples	No recent samples	No recent samples	✓ Public
	Sabin PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	West Hill PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not recorded
	Mollys PondWashington	No recent samples	No recent samples	No recent samples	No recent samples	Not 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 Vermont Department of Environmental Conservation. See data sources.