Water quality in Dilley, Oregon
Dilley is in Washington County. 97 active public water systems serve the county; 70 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 Washington County
28 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Hillsboro-Cherry Grove |
1,628 | 3 | 3.1 mi | |
| Forest Grove, City of |
26,838 | 0 | 3.6 mi | |
| Cornelius, City of |
14,490 | 2 | 4.0 mi | |
| Gaston, City of |
625 | 2 | 4.0 mi | |
| Laurelwood Water Users |
200 | 6 | 5.0 mi | |
| Westview Mobile Estates |
250 | 2 | 5.2 mi | |
| South Hills Water System |
250 | 0 | 6.1 mi | |
| Banks Water Department |
2,070 | 0 | 8.4 mi | |
| Hillsboro, City of |
92,632 | 1 | 8.8 mi | |
| Star Satellite Improv Dist |
400 | 1 | 9.1 mi | |
| LA Water Co-Op |
2,500 | 2 | 9.5 mi | |
| North Plains Water Department |
3,663 | 1 | 9.5 mi | |
| Wolsborn Farms Water District |
92 | 2 | 10.9 mi | |
| Tualatin Valley Water District |
224,600 | 0 | 14.0 mi | |
| Beaverton, City of |
88,045 | 1 | 15.0 mi | |
| Crown Mobile Home Park |
42 | 3 | 16.3 mi | |
| Sherwood, City of |
20,781 | 1 | 16.3 mi | |
| Tigard, City of |
62,500 | 2 | 16.7 mi | |
| West Slope Water District |
11,000 | 2 | 17.4 mi | |
| Raleigh Water District |
4,500 | 1 | 17.6 mi | |
| Tualatin, City of |
28,106 | 1 | 18.6 mi | |
| Fir Grove Homeowners Assn |
450 | 2 | — | |
| Timber Water Association |
180 | 9 | — | |
| Parrett Mountain View Estates |
155 | 1 | — | |
| West Laurel Acres Water CO |
65 | 3 | — |
Non-community systems in Washington County (68: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Washington County, nearest to Dilley 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 Oregon 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.