Public water system · OR4194930
ActiveLangdon Lake Water Cooperative
Transient non-community water system in Umatilla County, Oregon, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
64
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2025-10-04 | 34 | 3014 | No | Unaddressed |
| 2022-12-01 | 3B | 8000 | No | Resolved |
| 2022-02-01 | 3B | 8000 | No | Resolved |
| 2011-01-01 | 03 | 1040 | No | Resolved |
| 2010-10-01 | 22 | 3100 | Yes | Resolved |
| 2010-09-01 | 34 | 3014 | No | Resolved |
| 2009-07-01 | 22 | 3100 | Yes | Resolved |
| 2005-01-01 | 03 | 1040 | No | Resolved |
| 2002-12-01 | 25 | 3100 | No | Resolved |
| 2002-11-01 | 23 | 3100 | No | Resolved |
| 2002-10-01 | 22 | 3100 | Yes | Resolved |
| 2002-10-01 | 25 | 3100 | No | Resolved |
Langdon Lake Water Cooperative: frequently asked questions
Is Langdon Lake Water Cooperative's water safe to drink?
Langdon Lake Water Cooperative is an active transient non-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 Langdon Lake Water Cooperative?
Langdon Lake Water Cooperative (PWSID OR4194930) is a private-owned transient non-community water system, regulated by the OR state drinking water program.
How many people does Langdon Lake Water Cooperative serve?
Langdon Lake Water Cooperative reports serving 25 people through 64 service connections in Umatilla County, Oregon.
Where does Langdon Lake Water Cooperative 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 |