Black Hawk Water Quality Report
8 cities ranked · Average grade: A · Iowa
Avg Score
90
Cities Ranked
8
Health Violations
5
PFAS Detected
2
90
County avg score
8
Cities ranked
100%
A or B grade
0%
D or F grade
5
Health violations
2
PFAS detected
Grade Distribution
How Black Hawk cities scored
A
8
100%
Excellent
B
0
0%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Iowa average
▲ 2.5 pts above state average
City Map
Water quality across Black Hawk
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Black Hawk
County context
1
Superfund site in Black Hawk
99.1%
of residents on fluoridated water (CDC, 2020)
9,580
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Black Hawk
Industrial polluters nearby
Facilities reporting the most surface-water releases in Black Hawk, 2023.
Total reported releases to surface water: 9,580 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
JOHN DEERE WATERLOO WORKS DRIVETRAIN OPERATIONS AND FOUNDRY WATERLOO, IA50701 | Ethylene glycol | 9,213 |
JOHN DEERE ENGINE WORKS WATERLOO, IA50701 | Manganese | 250 |
JOHN DEERE WATERLOO WORKS TCAO WATERLOO, IA50703 | Manganese | 115 |
VIKING PUMP INC. - SOUTH MAIN FACILITY CEDAR FALLS, IA50613 | Lead And Lead Compounds | 2 |
CURBTENDER INC CEDAR FALLS, IA50613 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Black Hawk
Superfund sites nearby
Federally tracked hazardous-waste sites within Black Hawk on the EPA National Priorities List.
- WATERLOO COAL GASIFICATION PLANT
Source: EPA Superfund National Priorities List
Full Rankings
All 8 cities in Black Hawk
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Evansdale | A+ | 95.4 | 5K | 5 | Unresolved | |
| 2 | Elk Run Heights | A | 91.3 | 1K | 6 | Health Unresolved | |
| 3 | La Porte City | A | 90.3 | 2K | 11 | Health Unresolved | |
| 4 | Hudson | A- | 89.6 | 3K | 4 | Unresolved | |
| 5 | Gilbertville | A- | 89.3 | 794 | 20 | Unresolved | |
| 6 | Cedar Falls | A- | 89 | 41K | 14 | Health Unresolved | |
| 7 | Waterloo | A- | 87.6 | 70K | 23 | Health Unresolved | |
| 8 | Dunkerton | A- | 87.2 | 1K | 30 | Health Unresolved |