Water quality for ZIP code 99135
ZIP 99135 covers Hartline in Grant County, Washington, one of 14 ZIP codes in the county. 267 active public water systems serve the county; 87 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Grant County
80 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Fordair Water Co-Op INC |
43 | 3 | 8.5 mi | |
| Coulee City Town of |
944 | 1 | 9.5 mi | |
| Wilson Creek Water Dept Town of |
386 | 1 | 16.8 mi | |
| Marlin Hutterian |
134 | 3 | 18.4 mi | |
| North Shore Acres |
101 | 0 | 18.5 mi | |
| Electric City City of |
1,812 | 0 | 18.6 mi | |
| Grand Coulee Water Dept City of |
1,428 | 0 | 19.5 mi | |
| Soap Lake Water Dept |
2,399 | 0 | 26.2 mi | |
| Lakeview Park Water Assn |
1,259 | 1 | 27.4 mi | |
| Westmont Acres |
206 | 1 | 27.5 mi | |
| Wagon Wheel MHP |
86 | 0 | 28.8 mi | |
| Desert Villa |
100 | 0 | 29.2 mi | |
| Wagon Wheel Estate |
25 | 0 | 30.4 mi | |
| Ephrata Water Department |
8,718 | 2 | 31.8 mi | |
| Orchard Homes Water System |
31 | 1 | 34.7 mi | |
| Stratford Road Estates |
312 | 2 | 35.0 mi | |
| Ridgeview Estates Water Association |
240 | 2 | 35.1 mi | |
| Painted Hills Water Association |
70 | 3 | 35.2 mi | |
| Sunset Acres Water Assn |
61 | 1 | 35.5 mi | |
| Parker Spring Acres Water Assoc |
255 | 1 | 35.7 mi | |
| Viking Road Water System |
88 | 0 | 35.7 mi | |
| Skyline Acres INC |
151 | 1 | 36.2 mi | |
| Grove Terrace MHP Two LLC |
220 | 1 | 36.3 mi | |
| MT View Water System |
44 | 0 | 36.3 mi | |
| Skyline Water System INC |
293 | 0 | 36.7 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, 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.