Water quality in Allen, Texas
Allen is in Collin County. 35 active public water systems serve the county; 17 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Collin County
34 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Town of Fairview |
11,100 | 0 | 4.1 mi | |
| City of Parker |
6,486 | 0 | 4.8 mi | |
| City of Lucas |
8,378 | 0 | 5.7 mi | |
| City of Plano |
292,059 | 0 | 6.0 mi | |
| Seis Lagos Utility District |
2,037 | 6 | 6.8 mi | |
| City of McKinney |
224,043 | 0 | 7.2 mi | |
| City of Murphy |
21,082 | 0 | 7.3 mi | |
| Milligan WSC |
3,364 | 0 | 7.4 mi | |
| City of Frisco |
231,910 | 0 | 9.2 mi | |
| Wylie Northeast SUD |
11,430 | 1 | 9.2 mi | |
| North Custer Road Plant |
2,754 | 1 | 9.6 mi | |
| Culleoka WSC |
24,615 | 3 | 10.1 mi | |
| North Texas Mwd Wylie Wtp |
90 | 0 | 10.1 mi | |
| City of Wylie |
48,393 | 0 | 10.2 mi | |
| Air Park Estates |
96 | 1 | 11.3 mi | |
| City of Princeton |
37,019 | 1 | 11.4 mi | |
| Town of Prosper |
42,598 | 0 | 11.9 mi | |
| East Fork SUD |
17,589 | 0 | 12.2 mi | |
| North Collin SUD |
10,716 | 3 | 13.2 mi | |
| City of Celina |
52,701 | 0 | 14.1 mi | |
| City of Melissa |
26,234 | 0 | 14.3 mi | |
| Copeville SUD |
8,438 | 0 | 15.1 mi | |
| Weston WSC |
1,185 | 5 | 15.5 mi | |
| Bear Creek SUD |
15,822 | 0 | 16.0 mi | |
| Verona SUD |
3,672 | 2 | 16.9 mi |
About this data
Water systems are matched to Collin County, nearest to Allen first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Texas records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.