Water quality in Moses Lake, Washington
Moses Lake 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 |
|---|---|---|---|---|
| Admiral Water Users Assn |
74 | 1 | 1.6 mi | |
| Grove Terrace MHP Two LLC |
220 | 1 | 1.8 mi | |
| Basin Water Sources INC |
1,158 | 0 | 2.0 mi | |
| Quail Run Mobile Home Park |
165 | 1 | 2.0 mi | |
| Hillcrest Water Users Assn |
300 | 1 | 2.0 mi | |
| Diamond Point Water System |
110 | 0 | 2.1 mi | |
| Skyline Acres INC |
151 | 1 | 2.2 mi | |
| Viking Road Water System |
88 | 0 | 2.3 mi | |
| Skyline Water System INC |
293 | 0 | 2.4 mi | |
| Cascade Valley Water District |
379 | 0 | 2.5 mi | |
| Cascade Village MHP |
164 | 0 | 2.5 mi | |
| Ponderosa Mobile Home Park |
105 | 0 | 2.6 mi | |
| Lakeview Mobile Terrace |
43 | 0 | 2.7 mi | |
| Parker Spring Acres Water Assoc |
255 | 1 | 2.7 mi | |
| Stratford Road Estates |
312 | 2 | 3.0 mi | |
| Ridgeview Estates Water Association |
240 | 2 | 3.1 mi | |
| Legacy Resort |
46 | 2 | 3.4 mi | |
| Sunset Acres Water Assn |
61 | 1 | 3.5 mi | |
| Pelican Point by Cascadia LLC |
1,357 | 1 | 3.5 mi | |
| Orchard Homes Water System |
31 | 1 | 3.6 mi | |
| Silver Sands Condo Water |
37 | 0 | 3.7 mi | |
| MT View Water System |
44 | 0 | 3.7 mi | |
| Westshore Water Company |
153 | 2 | 3.8 mi | |
| Country Club Estates Water System |
186 | 0 | 3.9 mi | |
| Cougar Campers |
44 | 0 | 4.7 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 Moses Lake 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.