Sioux Water Quality Report
9 cities ranked · Average grade: A- · Iowa
Avg Score
87.2
Cities Ranked
9
Health Violations
6
PFAS Detected
5
87.2
County avg score
9
Cities ranked
100%
A or B grade
0%
D or F grade
6
Health violations
5
PFAS detected
Grade Distribution
How Sioux cities scored
A
7
78%
Excellent
B
2
22%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Iowa average
▼ 0.3 pts below state average
City Map
Water quality across Sioux
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Sioux
Best cities
County context
1
Superfund site in Sioux
38.5%
of residents on fluoridated water (CDC, 2020)
100
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Sioux
Industrial polluters nearby
Facilities reporting the most surface-water releases in Sioux, 2023.
Total reported releases to surface water: 100 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
PERDUE FOODS LLC - SIOUX PREME PACKING CO. CENTER PLANT SIOUX CENTER, IA51250 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 100 |
KENT NUTRITION GROUP INC IRETON, IA51027 | — | — |
DIAMOND VOGEL INC. ORANGE CITY, IA51041 | — | — |
GCC-ORANGE CITY ORANGE CITY, IA51041 | — | — |
ROSENBOON MACHINE & TOOL INC SHELDON, IA51201 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Sioux
Superfund sites nearby
Federally tracked hazardous-waste sites within Sioux on the EPA National Priorities List.
- VOGEL PAINT WAX CO
Source: EPA Superfund National Priorities List
Full Rankings
All 9 cities in Sioux
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Hawarden | A | 92.2 | 3K | 31 | Health Unresolved | |
| 2 | Alton | A | 90 | 1K | 12 | Health Unresolved | |
| 3 | Ireton | A- | 87.7 | 6K | 19 | Health Unresolved | |
| 4 | Hull | A- | 87.5 | 2K | 3 | Health Unresolved | |
| 5 | Boyden | A- | 87.5 | 701 | 5 | Unresolved | |
| 6 | Sioux Center | A- | 87.4 | 8K | 4 | Unresolved | |
| 7 | Orange City | A- | 87 | 6K | 5 | Unresolved | |
| 8 | Rock Valley | B+ | 84.8 | 6K | 34 | Health Unresolved | |
| 9 | Hospers | B+ | 80.8 | 4K | 25 | Health Unresolved |