Water quality for ZIP code 98947
ZIP 98947 covers Tieton and Cowiche in Yakima County, Washington, one of 20 ZIP codes in the county. 222 active public water systems serve the county; 67 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Yakima County
88 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Cowiche Water Association |
48 | 1 | 4.2 mi | |
| Naches Town of |
3,512 | 3 | 5.5 mi | |
| Starks Mobile Home Court |
60 | 0 | 8.5 mi | |
| Tieton Hills Water CO |
75 | 0 | 9.3 mi | |
| Gleed Mobile Estates |
76 | 0 | 9.8 mi | |
| Saddle Ridge Water Users |
60 | 0 | 10.2 mi | |
| Tampico Drive Well Owners Assn |
42 | 0 | 10.5 mi | |
| Green Meadows Subdivision |
32 | 1 | 10.7 mi | |
| Sun Tides Community LLC |
63 | 0 | 10.8 mi | |
| Sun Tides Vista Homeowners Assn |
350 | 0 | 10.9 mi | |
| Marys Garden |
280 | 0 | 11.1 mi | |
| Brocious Water System |
100 | 0 | 11.2 mi | |
| Brown Taylor Water CO INC |
30 | 0 | 11.2 mi | |
| Nob Hill Water Association |
38,050 | 0 | 11.6 mi | |
| Opr H2a |
100 | 0 | 12.6 mi | |
| Selandia Manor Water Assn |
130 | 0 | 12.8 mi | |
| Selah City of |
9,331 | 0 | 12.8 mi | |
| Nagler Estates Water Users Assn |
54 | 1 | 13.0 mi | |
| Selah Hills Homeowners Cooperative |
300 | 0 | 13.3 mi | |
| High Valley Mobile Home Court |
142 | 1 | 13.4 mi | |
| Hillview Water Assn |
95 | 0 | 13.6 mi | |
| Bridgeview Homesites Water Assn |
80 | 1 | 14.0 mi | |
| Woodland Park Mobil Court |
75 | 0 | 14.2 mi | |
| Yakima Water Division City of |
112,858 | 1 | 14.5 mi | |
| Sun-Tides RV Park |
100 | 1 | 14.6 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, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.