Water quality in McKinney, Texas
McKinney 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 |
|---|---|---|---|---|
| North Custer Road Plant |
2,754 | 1 | 4.4 mi | |
| Town of Fairview |
11,100 | 0 | 5.2 mi | |
| Milligan WSC |
3,364 | 0 | 6.3 mi | |
| City of Allen |
113,746 | 0 | 6.4 mi | |
| North Collin SUD |
10,716 | 3 | 7.9 mi | |
| Town of Prosper |
42,598 | 0 | 8.8 mi | |
| City of Lucas |
8,378 | 0 | 8.9 mi | |
| City of Melissa |
26,234 | 0 | 9.0 mi | |
| Weston WSC |
1,185 | 5 | 9.2 mi | |
| City of Celina |
52,701 | 0 | 9.6 mi | |
| City of Frisco |
231,910 | 0 | 9.6 mi | |
| City of Princeton |
37,019 | 1 | 9.6 mi | |
| City of Parker |
6,486 | 0 | 10.3 mi | |
| Seis Lagos Utility District |
2,037 | 6 | 10.5 mi | |
| City of Plano |
292,059 | 0 | 11.5 mi | |
| Culleoka WSC |
24,615 | 3 | 11.6 mi | |
| City of Anna |
23,960 | 4 | 12.0 mi | |
| City of Murphy |
21,082 | 0 | 13.0 mi | |
| Wylie Northeast SUD |
11,430 | 1 | 13.2 mi | |
| Verona SUD |
3,672 | 2 | 13.8 mi | |
| City of Wylie |
48,393 | 0 | 14.1 mi | |
| North Texas Mwd Wylie Wtp |
90 | 0 | 14.2 mi | |
| Air Park Estates |
96 | 1 | 15.9 mi | |
| Copeville SUD |
8,438 | 0 | 16.1 mi | |
| Westminster SUD |
2,424 | 1 | 16.3 mi |
About this data
Water systems are matched to Collin County, nearest to McKinney 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.