Woodbury Water Quality Report
7 cities ranked · Average grade: A- · Iowa
Avg Score
88.6
Cities Ranked
7
Health Violations
5
PFAS Detected
2
88.6
County avg score
7
Cities ranked
100%
A or B grade
0%
D or F grade
5
Health violations
2
PFAS detected
Grade Distribution
How Woodbury cities scored
A
6
86%
Excellent
B
1
14%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Iowa average
▲ 1.1 pts above state average
City Map
Water quality across Woodbury
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Woodbury
Worst cities
County context
90.6%
of residents on fluoridated water (CDC, 2020)
944,174
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Woodbury
Industrial polluters nearby
Facilities reporting the most surface-water releases in Woodbury, 2023.
Total reported releases to surface water: 944,174 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
CF INDUSTRIES NITROGEN LLC-PORT NEAL NITROGEN COMPLEX SERGEANT BLUFF, IA51054 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 876,722 |
GELITA SERGEANT BLUFF, IA51054 | Ammonia | 67,134 |
VALMONT COATINGS INC DBA SIOUXLAND GALVANIZING CORP. SIOUX CITY, IA51111 | Zinc compounds | 177 |
MIDAMERICAN ENERGY CO GEORGE NEAL NORTH SERGEANT BLUFF, IA51054 | Barium And Barium Compounds | 123 |
CARGILL FEED & NUTRITION SIOUX CITY SIOUX CITY, IA51105 | Zinc compounds | 15 |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 7 cities in Woodbury
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Sloan | A | 91.9 | 1K | 8 | Unresolved | |
| 2 | Sergeant Bluff | A | 91.8 | 5K | 5 | Health Unresolved | |
| 3 | Correctionville | A | 91.5 | 766 | 4 | Health Unresolved | |
| 4 | Anthon | A | 91.3 | 545 | 7 | Unresolved | |
| 5 | Lawton | A | 91 | 943 | 10 | Health Unresolved | |
| 6 | Moville | A- | 85.6 | 2K | 75 | Health Unresolved | |
| 7 | Sioux City | B | 77.3 | 86K | 35 | Health PFAS Unresolved |