Water quality in Union Gap, Washington
Union Gap is in Yakima County. 222 active public water systems serve the county; 67 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 Yakima County
88 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| South Hills Water Users Assn INC |
135 | 1 | 1.8 mi | |
| Alps Mobile Home Park |
150 | 2 | 2.8 mi | |
| Yakima Water Division City of |
112,858 | 1 | 3.3 mi | |
| Sun-Tides RV Park |
100 | 1 | 3.5 mi | |
| McAulays Home Sites |
58 | 0 | 3.6 mi | |
| Yak CO Terrace Heights |
8,410 | 3 | 3.9 mi | |
| Country Mobile Estates |
180 | 0 | 4.0 mi | |
| Burman Acres Water |
92 | 0 | 4.2 mi | |
| Cascadia Park Water Company |
93 | 0 | 4.2 mi | |
| Neals Valley View Addition Wtr CO |
62 | 0 | 4.4 mi | |
| Skyline Mobile Home Park |
340 | 2 | 4.4 mi | |
| North Terra Vista Water Users Assn |
52 | 0 | 4.5 mi | |
| Moxee Water Department |
5,599 | 0 | 4.5 mi | |
| Bridle Moor Water Association |
44 | 0 | 4.8 mi | |
| Woodland Park Mobil Court |
75 | 0 | 5.2 mi | |
| Wolfe Water Association |
70 | 1 | 5.5 mi | |
| Playland Park |
65 | 0 | 5.7 mi | |
| Butterfield Water Company |
108 | 0 | 5.8 mi | |
| Nob Hill Water Association |
38,050 | 0 | 5.9 mi | |
| Sun Tides Community LLC |
63 | 0 | 6.8 mi | |
| Country Squire Mobile Manor |
131 | 1 | 6.8 mi | |
| HI Valley View |
67 | 1 | 6.8 mi | |
| Opr H2a |
100 | 0 | 6.9 mi | |
| Brown Taylor Water CO INC |
30 | 0 | 6.9 mi | |
| Selah City of |
9,331 | 0 | 7.2 mi |
Non-community systems in Yakima County (133: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Yakima County, nearest to Union Gap 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.