Dallas Water Quality Report
11 cities ranked · Average grade: A- · Iowa
Avg Score
88.3
Cities Ranked
11
Health Violations
8
PFAS Detected
4
88.3
County avg score
11
Cities ranked
100%
A or B grade
0%
D or F grade
8
Health violations
4
PFAS detected
Grade Distribution
How Dallas cities scored
A
9
82%
Excellent
B
2
18%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Iowa average
▲ 0.8 pts above state average
City Map
Water quality across Dallas
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Dallas
Best cities
Worst cities
County context
82.1%
of residents on fluoridated water (CDC, 2020)
399,281
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Dallas
Industrial polluters nearby
Facilities reporting the most surface-water releases in Dallas, 2023.
Total reported releases to surface water: 399,281 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
TYSON FRESH MEATS INC-PERRY PERRY, IA50220 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 399,281 |
SIOUX CITY BRICK & TILE CO UNITED BRICK & TILE A DIV ADEL, IA50003 | — | — |
CENTRAL IOWA READY MIX ADEL, IA50003 | — | — |
INLAND COATINGS HOLDINGS LLC ADEL, IA50003 | — | — |
CENTRAL IOWA READY MIX PERRY, IA50220 | — | — |
+ 3 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 11 cities in Dallas
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Redfield | A | 94.4 | 744 | 8 | Unresolved | |
| 2 | Dexter | A | 94.3 | 693 | 9 | Unresolved | |
| 3 | Perry | A | 91.3 | 8K | 17 | Health Unresolved | |
| 4 | Adel | A | 90.9 | 6K | 13 | Health Unresolved | |
| 5 | Dallas Center | A | 90.5 | 2K | 2 | Unresolved | |
| 6 | Waukee | A- | 89.8 | 33K | 26 | Health Unresolved | |
| 7 | Van Meter | A- | 89.8 | 2K | 46 | Health Unresolved | |
| 8 | Minburn | A- | 87.5 | 13K | 14 | Health Unresolved | |
| 9 | Granger | A- | 85.8 | 2K | 7 | Health Unresolved | |
| 10 | Woodward | B | 78.8 | 6K | 46 | Health Unresolved | |
| 11 | De Soto | B | 78.2 | 960 | 25 | Health Unresolved |