Public water system · OR4101511
ActiveOregon City
At a glance
Oregon City (PWSID OR4101511) is an active community water system in Clackamas County, Oregon. It reports serving 33,940 people through 11,514 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
33,940
Service connections
11,514
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Oregon City compare with other water systems in Clackamas County?
By EPA's size categories, Oregon City is a large system (10,001 to 100,000 people). Clackamas County has 241 active public water systems, and Oregon City is the 3rd-largest of them by population served. Its population served is about 21 times the county average of 1,602 people per system, and accounts for 8.8% of the 385,972 people reported by systems filed under the county. Across Oregon, the 2,536 active systems average 1,587 people each. Nationally, the average active community water system reports serving 6,703 people, so Oregon City is about 5.1 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Oregon has 940 active community water systems, 37% of the state's 2,536 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 105 Oregon systems (4.1%) list purchased surface water as their primary source.
Who owns and regulates Oregon City?
EPA lists Oregon City as owned by a local government. The OR state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 57 of the 241 active systems in Clackamas County (24%) are also owned by a local government.
Does Oregon City have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Oregon City. For the latest compliance status, check EPA ECHO for current compliance history.
Oregon City: frequently asked questions
Who runs Oregon City?
Oregon City (PWSID OR4101511) is a community water system owned by a local government. It is regulated by the OR state drinking water program.
How many people does Oregon City serve?
Oregon City reports serving 33,940 people through 11,514 service connections in Clackamas County, Oregon.
Where does Oregon City get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Oregon City have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Oregon City's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the OR state drinking water program.
Where can I find Oregon City's water quality report?
As a community water system, Oregon City must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Clackamas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sunrise Water Authority | Clackamas | 50,003 | Community | Purchased surface water |
| Lake Oswego Municipal Water | Clackamas | 40,000 | Community | Purchased surface water |
| Oak Lodge Water Services | Clackamas | 30,000 | Community | Purchased surface water |
| Clackamas River Water | Clackamas | 29,918 | Community | Surface water |
| West Linn, City of | Clackamas | 28,000 | Community | Purchased surface water |
| Wilsonville, City of | Clackamas | 25,915 | Community | Surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Oregon City, PWSID OR4101511, Oregon”, https://aquacensus.com/water-systems/oregon/oregon-city-or4101511 (data as of October 1, 2026).