Water quality in Kelso, Washington
Kelso is in Cowlitz County. 77 active public water systems serve the county; 23 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 Cowlitz County
30 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Carrolls Water Assn |
449 | 0 | 3.0 mi | |
| Beacon Hill East |
190 | 0 | 3.3 mi | |
| Owl Creek |
102 | 0 | 3.5 mi | |
| Pleasant Hill Terrace Subdivision |
30 | 0 | 3.7 mi | |
| Beacon Hill Water & Sewer District |
11,969 | 0 | 5.3 mi | |
| Longview Water Department |
57,617 | 1 | 5.6 mi | |
| Kalama City of |
8,020 | 0 | 8.0 mi | |
| Sandwood Heights Subdivision |
126 | 0 | 8.2 mi | |
| Davis Terrace Water Assn |
222 | 2 | 8.5 mi | |
| Castle Rock Municipal Water |
4,367 | 2 | 10.9 mi | |
| Camelot Subdivision |
142 | 1 | 11.0 mi | |
| High Ridge |
73 | 0 | 13.4 mi | |
| Peterson Farms |
290 | 0 | 14.5 mi | |
| Columbia Riverfront RV Park |
233 | 1 | 14.7 mi | |
| Toutle Community Regional Water |
3,215 | 2 | 14.7 mi | |
| Woodland City of |
10,640 | 0 | 15.5 mi | |
| Lewis River RV Park |
347 | 0 | 16.1 mi | |
| Toutle River View |
45 | 1 | 16.3 mi | |
| Lewis River Golf Course |
300 | 0 | 16.5 mi | |
| Tulip Meadows |
33 | 2 | 18.5 mi | |
| Merwin Village/park Ppl CO |
92 | 0 | 19.2 mi | |
| Ryderwood Improvement & Service AS |
434 | 1 | 19.6 mi | |
| Viking Village Mobile Home Park |
25 | 0 | 22.5 mi | |
| Paradise Cove Resort & RV Park |
59 | 0 | 26.6 mi | |
| Cougar Crest |
290 | 0 | 28.2 mi |
Non-community systems in Cowlitz County (46: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Cowlitz County, nearest to Kelso 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.