Public water system · OR4100619
ActiveStewarts Addition
Community water system in Umatilla County, Oregon, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
16
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | 52 | 5000 | No | Unaddressed |
| 2025-10-01 | 72 | 7000 | No | Unaddressed |
| 2025-09-01 | 3A | 8000 | No | Resolved |
| 2025-07-01 | 71 | 7000 | No | Unaddressed |
| 2024-10-01 | 72 | 7000 | No | Unaddressed |
| 2024-07-01 | 71 | 7000 | No | Unaddressed |
| 2023-10-01 | 72 | 7000 | No | Unaddressed |
| 2023-07-01 | 71 | 7000 | No | Unaddressed |
| 2017-01-01 | 03 | 4000 | No | Archived |
| 2010-09-01 | 23 | 3100 | No | Resolved |
| 2008-09-01 | 23 | 3100 | No | Resolved |
| 2005-01-01 | 03 | 1040 | No | Resolved |
Stewarts Addition: frequently asked questions
Is Stewarts Addition's water safe to drink?
Stewarts Addition is an active community water system regulated under the Safe Drinking Water Act, overseen by the OR state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Stewarts Addition?
Stewarts Addition (PWSID OR4100619) is a private-owned community water system, regulated by the OR state drinking water program.
How many people does Stewarts Addition serve?
Stewarts Addition reports serving 50 people through 16 service connections in Umatilla County, Oregon.
Where does Stewarts Addition get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Umatilla County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Hermiston, City of | Umatilla | 20,000 | Community | Surface water |
| Pendleton, City of | Umatilla | 16,996 | Community | Groundwater |
| Umatilla, City of | Umatilla | 8,256 | Community | Groundwater |
| Milton-Freewater, City of | Umatilla | 7,145 | Community | Groundwater |
| Stanfield, City of | Umatilla | 2,115 | Community | Groundwater |
| Pilot Rock, City of | Umatilla | 1,326 | Community | Groundwater |