Water quality in Gaston, Oregon
Gaston 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 | 2.9 mi | |
| Laurelwood Water Users |
200 | 6 | 3.5 mi | |
| Laurel Acres Water CO INC |
50 | 4 | 4.0 mi | |
| South Hills Water System |
250 | 0 | 6.9 mi | |
| Westview Mobile Estates |
250 | 2 | 7.0 mi | |
| LA Water Co-Op |
2,500 | 2 | 7.3 mi | |
| Forest Grove, City of |
26,838 | 0 | 7.3 mi | |
| Cornelius, City of |
14,490 | 2 | 7.4 mi | |
| Wolsborn Farms Water District |
92 | 2 | 10.2 mi | |
| Hillsboro, City of |
92,632 | 1 | 11.4 mi | |
| Banks Water Department |
2,070 | 0 | 12.5 mi | |
| Star Satellite Improv Dist |
400 | 1 | 13.0 mi | |
| North Plains Water Department |
3,663 | 1 | 13.3 mi | |
| Crown Mobile Home Park |
42 | 3 | 14.6 mi | |
| Sherwood, City of |
20,781 | 1 | 15.5 mi | |
| Tualatin Valley Water District |
224,600 | 0 | 15.9 mi | |
| Beaverton, City of |
88,045 | 1 | 16.1 mi | |
| Tigard, City of |
62,500 | 2 | 17.0 mi | |
| Tualatin, City of |
28,106 | 1 | 18.4 mi | |
| West Slope Water District |
11,000 | 2 | 19.0 mi | |
| Raleigh Water District |
4,500 | 1 | 19.0 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 Gaston 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.