Harris Water Quality Report
23 cities ranked · Average grade: C+ · Texas
Avg Score
69.5
Cities Ranked
23
Health Violations
18
PFAS Detected
21
69.5
County avg score
23
Cities ranked
70%
A or B grade
26%
D or F grade
18
Health violations
21
PFAS detected
Grade Distribution
How Harris cities scored
A
4
17%
Excellent
B
12
52%
Good
C
1
4%
Fair
D
0
0%
Poor
F
6
26%
Failing
Comparison
County vs Texas average
▲ 2.0 pts above state average
City Map
Water quality across Harris
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Harris
Worst cities
County context
74.3%
of residents on fluoridated water (CDC, 2020)
247,181
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Harris
Industrial polluters nearby
Facilities reporting the most surface-water releases in Harris, 2023.
Total reported releases to surface water: 247,181 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
COVESTRO LLC BAYTOWN, TX77523 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 246,858 |
EXXONMOBIL MONT BELVIEU PLASTICS PLANT BAYTOWN, TX77521 | Zinc compounds | 272 |
KOPPEL STEEL CORP BAYTOWN PLANT BAYTOWN, TX77523 | Manganese | 51 |
BAYTOWN PLANT BAYTOWN, TX77523 | Lead | 0 |
CHEMICALS INC BAYTOWN, TX77521 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 23 cities in Harris
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Webster | A | 91.5 | 14K | 3 | Health PFAS | |
| 2 | Nassau Bay | A- | 89.3 | 4K | 5 | Unresolved | |
| 3 | South Houston | A- | 88.1 | 17K | 22 | Health PFAS Unresolved | |
| 4 | Bellaire | A- | 85.2 | 21K | 21 | Health Unresolved | |
| 5 | Jacinto City | B+ | 85 | 10K | 4 | Health Unresolved | |
| 6 | La Porte | B+ | 84.9 | 37K | 25 | Unresolved | |
| 7 | Jersey Village | B+ | 84 | 8K | 17 | Health Unresolved | |
| 8 | El Lago | B+ | 83.4 | 4K | 12 | Health Unresolved | |
| 9 | Seabrook | B+ | 83 | 14K | 1 | Unresolved | |
| 10 | Humble | B+ | 81.8 | 16K | 12 | Health Unresolved | |
| 11 | West University Place | B+ | 81.4 | 19K | 26 | Health PFAS Unresolved | |
| 12 | Shoreacres | B+ | 80.9 | 1K | 13 | Unresolved | |
| 13 | Deer Park | B+ | 80.7 | 34K | 17 | Health PFAS Unresolved | |
| 14 | Pasadena | B- | 72.2 | 153K | 24 | PFAS Unresolved | |
| 15 | Channelview | B- | 72.2 | 20K | 18 | Health Unresolved | |
| 16 | Galena Park | B- | 70 | 10K | 15 | Health PFAS Unresolved | |
| 17 | Tomball | C | 64.2 | 19K | 158 | Health Unresolved | |
| 18 | Crosby | F | 42.8 | 16K | 376 | Health Unresolved | |
| 19 | Katy | F | 40.2 | 48K | 215 | Health Unresolved | |
| 20 | Baytown | F | 38.5 | 89K | 1095 | Health PFAS Unresolved | |
| 21 | Highlands | F | 37.2 | 10K | 123 | Health PFAS Unresolved | |
| 22 | Cypress | F | 34.3 | 76K | 4147 | Health PFAS Unresolved | |
| 23 | Houston | F | 27.8 | 5.9M | 11018 | Health PFAS Unresolved |