COUNTY WATER-SYSTEM LEDGER
Clatsop, Oregon
EPA’s September 2026 export lists 4 active community water systems serving Clatsop, 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 Clatsop, Oregon
EPA associates 4 covered systems with Clatsop, Oregon; their reported population-served values total 29,343 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 |
|---|---|---|---|
| Astoria, City OfOR4100055 | 10,181 | Surface water | No current violation flagged |
| Warrenton, City OfOR4100932 | 9,100 | Surface water | No current violation flagged |
| Seaside Water DepartmentOR4100799 | 7,482 | Surface water | Current monitoring/reporting flag |
| Youngs River Lewis & Clark WdOR4100062 | 2,580 | Surface water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Clatsop, Oregon
EPA classifies 4 systems serving Clatsop, Oregon across 1 primary-source categories; Surface water is the largest category with 4 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.