Black Hawk County Lake Quality
Iowa, 8 lakes, measured by Iowa DNR
Black Hawk County holds 8 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. 6 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. Most monitored lakes in Black Hawk County are productive, shallow basins; each lake page shows its own phosphorus and chlorophyll-a readings beside the EPA condition class.
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 Mitchell Lake.
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Quick Answers for Black Hawk County
Planning a trip? Check special fishing regulations for Mitchell Lake — or check the official Iowa fishing regulations.
All Lakes in Black Hawk County
8 lakes · 6 ranked on readings, 2 without enough sampling6 lakes ranked on readings · 2 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| 1 | Mitchell LakeBlack Hawk | 2.3 ft | 40.5 µg/L | 18.7 µg/L | No recent samples | ✓ Public |
| 2 | Green Belt LakeBlack Hawk | 2.4 ft | 57 µg/L | 18.6 µg/L | No recent samples | Not recorded |
| 3 | Fisher LakeBlack Hawk | 2.6 ft | 169 µg/L | 25.7 µg/L | No recent samples | ✓ Public |
| 4 | Meyers LakeBlack Hawk | 1.1 ft | 183.5 µg/L | 116.5 µg/L | No recent samples | ✓ Public |
| 5 | South Prairie LakeBlack Hawk | 1.6 ft | 104.5 µg/L | 66.9 µg/L | No recent samples | Not recorded |
| 6 | Alice Wyth LakeBlack Hawk | 1.6 ft | 183 µg/L | 101.6 µg/L | No recent samples | ✓ Public |
| George Wyth Beach LakeBlack Hawk | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public | |
| Hanson LakeBlack Hawk | 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 Iowa Department of Natural Resources. See data sources.