Johnson Water Quality Report
6 cities ranked · Average grade: B+ · Kansas
Avg Score
81.3
Cities Ranked
6
Health Violations
5
PFAS Detected
5
81.3
County avg score
6
Cities ranked
100%
A or B grade
0%
D or F grade
5
Health violations
5
PFAS detected
Grade Distribution
How Johnson cities scored
A
2
33%
Excellent
B
4
67%
Good
C
0
0%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs Kansas average
▲ 5.5 pts above state average
City Map
Water quality across Johnson
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Johnson
Worst cities
County context
2
Superfund sites in Johnson
98.3%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Johnson
Industrial polluters nearby
Facilities reporting the most surface-water releases in Johnson, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
OLDCASTLE MILLER BONNER SPRINGS BONNER SPRINGS, KS66012 | — | — |
INTERVET INC. DE SOTO, KS66018 | — | — |
PENNYS CONCRETE NEW CENTURY, KS66031 | — | — |
CENTURY CONCRETE INC OLATHE FACILITY OLATHE, KS66061 | — | — |
HONEYWELL AEROSPACE OLATHE OLATHE, KS66061 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Johnson
Superfund sites nearby
Federally tracked hazardous-waste sites within Johnson on the EPA National Priorities List.
- CHEMICAL COMMODITIES INC
- DOEPKE DISPOSAL HOLLIDAY
Source: EPA Superfund National Priorities List
Full Rankings
All 6 cities in Johnson
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Kansas City | A- | 86.1 | 635K | 19 | Health Unresolved | |
| 2 | Gardner | A- | 86 | 30K | 40 | Health Unresolved | |
| 3 | Spring Hill | B+ | 83.1 | 6K | 8 | Health Unresolved | |
| 4 | Edgerton | B+ | 82.6 | 2K | 6 | Unresolved | |
| 5 | Olathe | B | 79.5 | 143K | 19 | Health Unresolved | |
| 6 | Desoto | B- | 70.7 | 5K | 17 | Health Unresolved |