Water quality for ZIP code 98566
ZIP 98566 covers Neilton in Grays Harbor County, Washington, one of 20 ZIP codes in the county. 87 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 Grays Harbor County
34 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Hoquiam Water Department |
11,456 | 0 | |
| Ocean Shores Water Dept |
9,347 | 0 | |
| Elma City of |
6,638 | 1 | |
| Montesano City of |
6,204 | 0 | |
| Westport Water Department |
5,346 | 1 | |
| Grays Harbor CO Water Dist 2 |
5,112 | 1 | |
| McCleary City of |
2,753 | 0 | |
| Pacific Beach/moclips |
2,372 | 2 | |
| Cosmopolis Water Department |
1,812 | 2 | |
| Hogans Corner |
1,458 | 1 | |
| Oakville City of |
1,325 | 0 | |
| Grays Harbor CO Water Dist 1 |
1,302 | 0 | |
| Lake Quinault |
1,003 | 0 | |
| Illahee Oyehut |
971 | 0 | |
| Greenwood Mobile Home Park |
350 | 2 | |
| Haven by the Sea |
308 | 1 | |
| Neilton Meadowland WD 8 a |
275 | 1 | |
| Ocean City |
237 | 1 | |
| Meadowood Development |
220 | 1 | |
| Monte View Estates |
200 | 1 | |
| Malone |
181 | 0 | |
| Sea View |
170 | 2 | |
| Country Estates |
150 | 1 | |
| Forestview Senior Community LLC |
92 | 0 | |
| Bay City Properties |
90 | 0 |
Non-community systems in Grays Harbor County (52: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Grays Harbor 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.