Water quality for ZIP code 98609
Cowlitz County, Washington, one of 10 ZIP codes in the county. 77 active public water systems serve the county; 23 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Cowlitz County
30 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Kelso City of |
15,775 | 0 | |
| Beacon Hill Water & Sewer District |
11,969 | 0 | |
| Woodland City of |
10,640 | 0 | |
| Kalama City of |
8,020 | 0 | |
| Castle Rock Municipal Water |
4,367 | 2 | |
| Toutle Community Regional Water |
3,215 | 2 | |
| Carrolls Water Assn |
449 | 0 | |
| Ryderwood Improvement & Service AS |
434 | 1 | |
| Lewis River RV Park |
347 | 0 | |
| Lewis River Golf Course |
300 | 0 | |
| Cougar Crest |
290 | 0 | |
| Peterson Farms |
290 | 0 | |
| Columbia Riverfront RV Park |
233 | 1 | |
| Davis Terrace Water Assn |
222 | 2 | |
| Beacon Hill East |
190 | 0 | |
| Camelot Subdivision |
142 | 1 | |
| Sandwood Heights Subdivision |
126 | 0 | |
| Owl Creek |
102 | 0 | |
| Mulkey Meadows 1 |
93 | 0 | |
| Merwin Village/park Ppl CO |
92 | 0 | |
| High Ridge |
73 | 0 | |
| Edgewater Mobile Estates |
70 | 0 | |
| Paradise Cove Resort & RV Park |
59 | 0 | |
| Columbia Crest Estates |
48 | 0 | |
| Kelley Crest |
45 | 2 |
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, the county this ZIP code lies in, largest 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.
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.