Water quality in Royal City, Washington
Royal City is in Grant County. 267 active public water systems serve the county; 87 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 Grant County
80 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Royal Water District |
430 | 1 | 6.5 mi | |
| Sun Desert INC |
27 | 2 | 13.0 mi | |
| Sunrise Water Association |
250 | 1 | 13.7 mi | |
| Marine View Home Owners Assn |
87 | 1 | 14.0 mi | |
| Desert Hills |
30 | 0 | 14.0 mi | |
| Sentinel Gap Water Assn |
226 | 2 | 15.4 mi | |
| Beverly Water District |
120 | 2 | 15.4 mi | |
| Wanapum Village |
305 | 1 | 16.5 mi | |
| George City of |
1,035 | 2 | 17.1 mi | |
| Mattawa City of |
5,370 | 2 | 17.9 mi | |
| Silver Sands Condo Water |
37 | 0 | 19.1 mi | |
| Country Club Estates Water System |
186 | 0 | 19.1 mi | |
| First Potholes Water Users Assn |
90 | 2 | 19.2 mi | |
| Pelican Point by Cascadia LLC |
1,357 | 1 | 19.6 mi | |
| Legacy Resort |
46 | 2 | 20.3 mi | |
| Westshore Water Company |
153 | 2 | 20.5 mi | |
| Diamond Point Water System |
110 | 0 | 20.5 mi | |
| Desert Aire Owner Assn |
2,856 | 0 | 20.7 mi | |
| The Village at Colockum Ridge |
144 | 1 | 21.1 mi | |
| Quail Run Mobile Home Park |
165 | 1 | 21.4 mi | |
| Cascade Valley Water District |
379 | 0 | 21.5 mi | |
| Cascade Village MHP |
164 | 0 | 22.0 mi | |
| Ponderosa Mobile Home Park |
105 | 0 | 22.3 mi | |
| Lakeview Mobile Terrace |
43 | 0 | 22.3 mi | |
| Hillcrest Water Users Assn |
300 | 1 | 22.5 mi |
Non-community systems in Grant County (186: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Grant County, nearest to Royal City 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 Washington 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.