Collin Water Quality Report
22 cities ranked · Average grade: B · Texas
Avg Score
79
Cities Ranked
22
Health Violations
13
PFAS Detected
19
79
County avg score
22
Cities ranked
91%
A or B grade
5%
D or F grade
13
Health violations
19
PFAS detected
Grade Distribution
How Collin cities scored
A
8
36%
Excellent
B
12
55%
Good
C
1
5%
Fair
D
0
0%
Poor
F
1
5%
Failing
Comparison
County vs Texas average
▲ 11.5 pts above state average
City Map
Water quality across Collin
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Collin
Best cities
Worst cities
County context
99.9%
of residents on fluoridated water (CDC, 2020)
596
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Collin
Industrial polluters nearby
Facilities reporting the most surface-water releases in Collin, 2023.
Total reported releases to surface water: 596 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
ENCORE WIRE CORP MC KINNEY, TX75069 | Copper | 593 |
MANNER POLYMERS INC MCKINNEY, TX75071 | Zinc compounds | 1 |
421/422 PROSPER PROSPER, TX75078 | Lead | 1 |
MELISSA PLANT MELISSA, TX75454 | Lead | 1 |
416/417 FRISCO FRISCO, TX75035 | Lead | 0 |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 22 cities in Collin
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Fairview | A- | 89.8 | 11K | 30 | Health Unresolved | |
| 2 | Mckinney | A- | 89.6 | 227K | 10 | Unresolved | |
| 3 | Copeville | A- | 88.2 | 4K | 7 | Unresolved | |
| 4 | Parker | A- | 88 | 6K | 24 | Unresolved | |
| 5 | Allen | A- | 87.3 | 105K | 4 | Unresolved | |
| 6 | Plano | A- | 87.2 | 292K | 30 | Health Unresolved | |
| 7 | Westminster | A- | 86.6 | 2K | 2 | Unresolved | |
| 8 | Celina | A- | 85.6 | 53K | 14 | Health Unresolved | |
| 9 | Murphy | B+ | 83.8 | 19K | 6 | Unresolved | |
| 10 | Josephine | B+ | 81.6 | 10K | 7 | Unresolved | |
| 11 | Lavon | B+ | 81.3 | 16K | 3 | Health Unresolved | |
| 12 | Prosper | B+ | 81.1 | 43K | 3 | PFAS Unresolved | |
| 13 | Princeton | B | 78.7 | 62K | 27 | Health Unresolved | |
| 14 | Nevada | B | 78.4 | 4K | 5 | Unresolved | |
| 15 | Blue Ridge | B | 77.3 | 10K | 36 | Health Unresolved | |
| 16 | Lucas | B | 76.8 | 11K | 20 | Health Unresolved | |
| 17 | Frisco | B | 76.2 | 235K | 45 | Health Unresolved | |
| 18 | Melissa | B | 75.3 | 29K | 24 | Health Unresolved | |
| 19 | Wylie | B- | 71.2 | 76K | 32 | Health Unresolved | |
| 20 | Weston | B- | 70.9 | 912 | 17 | Health Unresolved | |
| 21 | Anna | C | 64 | 24K | 25 | Health Unresolved | |
| 22 | Farmersville | F | 38.5 | 7K | 51 | Health Unresolved |