COUNTY WATER-SYSTEM LEDGER
Yamhill, Oregon
EPA’s September 2026 export lists 6 active community water systems serving Yamhill, Oregon, with 1 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Yamhill, Oregon
EPA associates 6 covered systems with Yamhill, Oregon; their reported population-served values total 76,065 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Mcminnville Water & LightOR4100497 | 34,515 | Surface water | No current violation flagged |
| Newberg, City OfOR4100557 | 25,138 | Ground water | No current violation flagged |
| Sheridan, City OfOR4100811 | 6,494 | Surface water | No current violation flagged |
| Lafayette, City OfOR4100452 | 4,423 | Surface water purchased | No current violation flagged |
| Dundee, City OfOR4100262 | 2,960 | Ground water | No current violation flagged |
| Dayton, City OfOR4100252 | 2,535 | Ground water | Current monitoring/reporting flag |
02 / SOURCE MIX
Primary water sources for Yamhill, Oregon
EPA classifies 6 systems serving Yamhill, Oregon across 3 primary-source categories; Surface water is the largest category with 2 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.