Water quality in Winlock, Washington
Winlock is in Lewis County. 167 active public water systems serve the county; 56 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 Lewis County
50 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Timberlane Mobile Home Park |
63 | 1 | 1.3 mi | |
| Frost Road Park |
65 | 1 | 3.0 mi | |
| Sward 278 |
25 | 0 | 3.2 mi | |
| Silverbrook MH & RV |
42 | 0 | 5.1 mi | |
| Toledo Municipal |
1,944 | 1 | 5.2 mi | |
| Cowlitz Indian Tribal Housing |
52 | 1 | 5.5 mi | |
| River Oaks RV Park & Campground |
50 | 2 | 5.6 mi | |
| Vader-Enchanted Valley |
985 | 0 | 6.1 mi | |
| Parkwood Mobile Home Estates |
105 | 1 | 6.5 mi | |
| Napavine City of |
3,095 | 1 | 6.7 mi | |
| Winston Creek RV Park |
50 | 0 | 6.7 mi | |
| Jackson Mobile 2 |
30 | 1 | 6.8 mi | |
| Valley Meadows 240 |
148 | 0 | 7.9 mi | |
| Newaukum Ventures |
186 | 1 | 8.4 mi | |
| Meadows |
24 | 0 | 8.6 mi | |
| Gunderson Water Works |
53 | 0 | 8.9 mi | |
| Boistfort Valley |
2,389 | 0 | 10.2 mi | |
| Newaukum Hill Water Assn |
493 | 2 | 10.2 mi | |
| Aust 210 |
35 | 0 | 10.2 mi | |
| Chehalis Water Department |
11,718 | 1 | 10.8 mi | |
| Middle Fork Water & Sewer |
144 | 0 | 11.0 mi | |
| Lewis CO Water Dist #2 |
1,983 | 0 | 11.7 mi | |
| View Ranch Estates Water Assn |
141 | 0 | 12.6 mi | |
| Winlock Waters 2 |
25 | 4 | 12.7 mi | |
| Salkum Water Supply |
103 | 3 | 15.1 mi |
Non-community systems in Lewis County (116: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Lewis County, nearest to Winlock 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.