Grayson Water Quality Report
15 cities ranked · Average grade: B- · Texas
Avg Score
71.4
Cities Ranked
15
Health Violations
10
PFAS Detected
4
71.4
County avg score
15
Cities ranked
60%
A or B grade
20%
D or F grade
10
Health violations
4
PFAS detected
Grade Distribution
How Grayson cities scored
A
5
33%
Excellent
B
4
27%
Good
C
3
20%
Fair
D
1
7%
Poor
F
2
13%
Failing
Comparison
County vs Texas average
▲ 3.9 pts above state average
City Map
Water quality across Grayson
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Grayson
County context
82.0%
of residents on fluoridated water (CDC, 2020)
177
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Grayson
Industrial polluters nearby
Facilities reporting the most surface-water releases in Grayson, 2023.
Total reported releases to surface water: 177 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
AAAR DENISON I DENISON, TX75020 | Zinc compounds | 175 |
DENISON INDUSTRIES DENISON, TX75020 | Copper | 1 |
KAISER ALUMINUM FABRICATED PRODUCTS LLC SHERMAN, TX75090 | Lead | 0 |
FLORESTONE LLC DENISON, TX75020 | — | — |
AAAR DENISON II DENISON, TX75020 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 15 cities in Grayson
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Gunter | A | 91.1 | 3K | 5 | Unresolved | |
| 2 | Tom Bean | A- | 87.9 | 1K | 8 | Health Unresolved | |
| 3 | Dorchester | A- | 87.6 | 2K | 5 | Health Unresolved | |
| 4 | Knollwood | A- | 86.8 | 1K | 38 | Unresolved | |
| 5 | Tioga | A- | 86.1 | 938 | 4 | Unresolved | |
| 6 | Sherman | B+ | 84.5 | 48K | 28 | Health Unresolved | |
| 7 | Whitesboro | B | 77 | 11K | 47 | Unresolved | |
| 8 | Bells | B | 76 | 5K | 16 | Health Unresolved | |
| 9 | Gordonville | B- | 70 | 4K | 11 | Health Unresolved | |
| 10 | Whitewright | C+ | 67 | 6K | 18 | Health Unresolved | |
| 11 | Southmayd | C+ | 67 | 1K | 48 | Health Unresolved | |
| 12 | Van Alstyne | C- | 57.9 | 14K | 42 | Unresolved | |
| 13 | Collinsville | D | 48 | 5K | 5819 | Health Unresolved | |
| 14 | Denison | F | 43.8 | 34K | 204 | Health Unresolved | |
| 15 | Pottsboro | F | 41 | 3K | 62 | Health Unresolved |