Water quality for ZIP code 75166
ZIP 75166 covers Lavon, Wylie, and Dallas in Collin County, Texas, one of 29 ZIP codes in the 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 |
|---|---|---|---|---|
| East Fork SUD |
17,589 | 0 | 4.2 mi | |
| City of Wylie |
48,393 | 0 | 4.2 mi | |
| North Texas Mwd Wylie Wtp |
90 | 0 | 4.4 mi | |
| Nevada SUD |
4,218 | 0 | 4.7 mi | |
| Wylie Northeast SUD |
11,430 | 1 | 5.2 mi | |
| Copeville SUD |
8,438 | 0 | 6.5 mi | |
| Culleoka WSC |
24,615 | 3 | 6.9 mi | |
| Seis Lagos Utility District |
2,037 | 6 | 7.7 mi | |
| City of Josephine |
9,800 | 1 | 8.6 mi | |
| City of Murphy |
21,082 | 0 | 9.1 mi | |
| City of Lucas |
8,378 | 0 | 9.1 mi | |
| City of Parker |
6,486 | 0 | 10.1 mi | |
| City of Farmersville |
5,312 | 3 | 11.3 mi | |
| City of Princeton |
37,019 | 1 | 12.2 mi | |
| Milligan WSC |
3,364 | 0 | 12.3 mi | |
| Town of Fairview |
11,100 | 0 | 12.7 mi | |
| North Farmersville WSC |
747 | 5 | 14.1 mi | |
| City of Allen |
113,746 | 0 | 14.3 mi | |
| Verona SUD |
3,672 | 2 | 16.3 mi | |
| City of Plano |
292,059 | 0 | 17.3 mi | |
| City of McKinney |
224,043 | 0 | 19.0 mi | |
| North Collin SUD |
10,716 | 3 | 19.3 mi | |
| City of Melissa |
26,234 | 0 | 19.7 mi | |
| City of Blue Ridge |
1,189 | 2 | 20.0 mi | |
| Frognot SUD |
2,643 | 1 | 20.9 mi |
About this data
Water systems are matched to Collin County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.