Emery County Lake Quality
Utah, 8 lakes, measured by Utah DWQ
Emery County has 8 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. 5 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. The county's readings sit in the middle of the Utah range, with one or two lakes pulling the average up or down depending on year.
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. Millsite Reservoir has the lowest nutrient and algae readings in the county.
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Quick Answers for Emery County
Planning a trip? Check special fishing regulations for Millsite Reservoir — or check the official Utah fishing regulations.
All Lakes in Emery County
8 lakes · 5 ranked on readings, 3 without enough sampling5 lakes ranked on readings · 3 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| 1 | Millsite ReservoirEmery | 10.5 ft | 20.6 µg/L | 1.9 µg/L | No recent samples | ✓ Public |
| 2 | Joes Valley ReservoirEmery | 11.2 ft | 6.3 µg/L | 2.5 µg/L | No recent samples | ✓ Public |
| 3 | Cleveland LakeEmery | 17.4 ft | 12.4 µg/L | 2.1 µg/L | No recent samples | Not recorded |
| 4 | Electric LakeEmery | 10.8 ft | 9.8 µg/L | 4 µg/L | No recent samples | Not recorded |
| 5 | Miller Flat ReservoirEmery | 10.2 ft | 13.5 µg/L | 4.5 µg/L | No recent samples | Not recorded |
| Zwahlen Wash Debris Basin ReservoirEmery | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Desert LakeEmery | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Horse Bench ReservoirEmery | 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 Utah Division of Water Quality. See data sources.