Tooele County Lake Quality
Utah, 6 lakes, measured by Utah DWQ
Tooele County has 6 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. 2 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. On average, Tooele County lakes carry some of the lowest phosphorus and chlorophyll-a readings in Utah, 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 Settlement Canyon Reservoir.
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Quick Answers for Tooele County
Planning a trip? Check special fishing regulations for Settlement Canyon Reservoir — or check the official Utah fishing regulations.
All Lakes in Tooele County
6 lakes · 2 ranked on readings, 4 without enough sampling2 lakes ranked on readings · 4 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| 1 | Settlement Canyon ReservoirTooele | 8.5 ft | 8.9 µg/L | 1.6 µg/L | No recent samples | Not recorded |
| 2 | Grantsville ReservoirTooele | 5.9 ft | 19 µg/L | 4 µg/L | No recent samples | Not recorded |
| Great Salt LakeTooele | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Rush LakeTooele | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Atherley ReservoirTooele | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Vernon ReservoirTooele | 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.