Garfield County Lake Quality
Utah, 16 lakes, average grade B (Good)
There are 16 monitored lakes in Garfield County. The mix is varied enough that the county-level average tells you the broad strokes, not the choose-this-cabin specifics. 6 of those lakes carry an A–F grade. The county-level summary describes that subset, not every water body listed. With an average grade of B, Garfield County sits comfortably above the Utah median.
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 Wide Hollow Reservoir (A); the most-stressed is Lower Bowns Reservoir (D).
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Quick Answers for Garfield County
Planning a trip? Check special fishing regulations for Wide Hollow Reservoir — or check the official Utah fishing regulations.
All Lakes in Garfield County
16 lakes · 6 graded, 10 not rated6 graded lakes · 10 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | AWide Hollow ReservoirGarfield | A | 13.8 ft | 36.5 µg/L | 3.4 µg/L | No recent samples | ✓ Public |
| 2 | APosey LakeGarfield | A | 16.4 ft | 18.5 µg/L | 1.2 µg/L | No recent samples | ✓ Public |
| 3 | ATropic ReservoirGarfield | A | 12.3 ft | 4.9 µg/L | 1.3 µg/L | No recent samples | Not recorded |
| 4 | BLake Powell Goodhope Bay MidchannelGarfield | B | 6.1 ft | 26 µg/L | No recent samples | No recent samples | Not recorded |
| 5 | DLower Bowns ReservoirGarfield | D | 9.2 ft | 34 µg/L | 9 µg/L | No recent samples | Not recorded |
| 6 | DPanguitch L Shore LakeGarfield | D | 5.7 ft | 94 µg/L | 21.7 µg/L | No recent samples | Not recorded |
| NRPollywog LakeGarfield | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRPacer LakeGarfield | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRNorth Creek ReservoirGarfield | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRCyclone LakeGarfield | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRMcGath LakeGarfield | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRSpectacle LakeGarfield | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRBig LakeGarfield | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRRoundy ReservoirGarfield | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRLake PhiloGarfield | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRLake PowellGarfield | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not 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.
Lake Match
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Other Counties in Utah
See how Garfield County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..
Source: EPA National Aquatic Resource Surveys, 2026.