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

Cleanest Lakes in Weld County, Colorado

Horse Creek Outlet Lake in Weld County leads the rankings with a water quality grade of D. Below are the top 50 cleanest monitored lakes in Weld County, Colorado, ranked by EPA water quality score.

Ranked List

#LakeCountyGradeClarityPhosphorusAlgae
1Horse Creek Outlet LakeWeldD-460 µg/L27.6 µg/L
2Prospect LakeWeldF-300 µg/L42.5 µg/L
3Empire ReservoirWeldNR---
4Riverside ReservoirWeldNR---
5Lower Latham ReservoirWeldNR---
6Briscoe LakeWeldNR---
7Lindies LakesWeldNR---
8Darling ReservoirWeldNR---
9Neuman LakeWeldNR---
10Seeley LakeWeldNR---
11Neff LakeWeldNR---
12Oklahoma ReservoirWeldNR---
13Johnstown ReservoirWeldNR---
14Little Thompson ReservoirWeldNR---
15Hill LakeWeldNR---
16Lake ThomasWeldNR---
17Frederick ReservoirWeldNR---
18Coal Ridge Waste ReservoirWeldNR---
19Mose Davis LakeWeldNR---
20Klug LakeWeldNR---
21Lord ReservoirWeldNR---
22Ireland Reservoir Number FiveWeldNR---
23Foster ReservoirWeldNR---
24Sanborn ReservoirWeldNR---
25Mulligan ReservoirWeldNR---
26Highland LakeWeldNR---
27Baxter LakeWeldNR---
28Newell LakeWeldNR---
29De France ReservoirWeldNR---
30Hummel ReservoirWeldNR---
31Franklin LakeWeldNR---
32Eaton-Law ReservoirWeldNR---
33Thompson LakeWeldNR---
34Windsor ReservoirWeldNR---
35Loop LakeWeldNR---
36Drake LakeWeldNR---
37James LakeWeldNR---
38Lee LakeWeldNR---
39Black Hollow ReservoirWeldNR---
40Antelope ReservoirWeldNR---
41Clark LakeWeldNR---
42Angel LakeWeldNR---
43Woods LakeWeldNR---
44Cozzens LakeWeldNR---
45Howards LakeWeldNR---
46Long LakeWeldNR---
47Owl Creek ReservoirWeldNR---
48McGrew ReservoirWeldNR---
49Heart ReservoirWeldNR---
50Dutch Girl LakeWeldNR---

More Answers for Weld County, Colorado

All lakes in Weld County →Cleanest lakes in Colorado →

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