Water quality for ZIP code 99157
ZIP 99157 covers Northport in Stevens County, Washington, one of 17 ZIP codes in the county. 69 active public water systems serve the county; 31 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Stevens County
32 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Northport Water System |
290 | 1 | 10.5 mi | |
| Evans Water System |
47 | 0 | 11.2 mi | |
| Marcus Water Dept |
191 | 2 | 11.9 mi | |
| Kettle Falls Water Dept |
2,698 | 1 | 15.1 mi | |
| Stevens CO Pud Mission Ridge |
120 | 1 | 15.1 mi | |
| Stevens CO Pud Echo Estates |
75 | 1 | 17.4 mi | |
| Colville Water Department |
4,945 | 1 | 18.4 mi | |
| Corbett Creek |
95 | 1 | 18.5 mi | |
| Panorama Mobile Home Park |
150 | 4 | 22.3 mi | |
| Arden Hills Water System |
80 | 3 | 24.7 mi | |
| Elm Tree Water & Sewer Assn |
38 | 1 | 24.8 mi | |
| Stevens CO Pud Addy |
253 | 0 | 31.4 mi | |
| Chewelah Water Dept North |
350 | 2 | 35.3 mi | |
| Stevens CO Pud Dolomite |
60 | 0 | 36.7 mi | |
| Tiger Tracts |
90 | 0 | 37.2 mi | |
| Chewelah Water Dept South |
2,615 | 2 | 38.1 mi | |
| Dominion View Water Assn |
37 | 0 | 38.4 mi | |
| Stevens CO Pud Waitts Lake |
1,216 | 0 | 43.9 mi | |
| Stevens CO Pud Valley |
550 | 0 | 45.2 mi | |
| Stevens CO Pud Jump Off Joe |
204 | 0 | 47.3 mi | |
| Hunters Water District |
290 | 5 | 48.9 mi | |
| Stevens CO Pud Deer Lake |
2,884 | 1 | 51.2 mi | |
| Springdale Town of |
315 | 3 | 52.7 mi | |
| Stevens CO Pud Loon Lake |
2,487 | 1 | 53.6 mi | |
| Stevens CO Pud Clayton |
725 | 0 | 59.0 mi |
Non-community systems in Stevens County (36: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Stevens 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.