Public water system · OR4194202
ActiveUsace the Dalles-Celilo Park
At a glance
Usace the Dalles-Celilo Park (PWSID OR4194202) is an active transient non-community water system in Wasco County, Oregon. It reports serving 310 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
310
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Usace the Dalles-Celilo Park compare with other water systems in Wasco County?
By EPA's size categories, Usace the Dalles-Celilo Park is a very small system (500 people or fewer). Wasco County has 44 active public water systems. Its population served is about half of the county average of 583 people per system, and accounts for 1.2% of the 25,664 people reported by systems filed under the county. Across Oregon, the 2,536 active systems average 1,587 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Usace the Dalles-Celilo Park is about twice that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Oregon has 1,250 active transient non-community water systems, 49% of the state's 2,536 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,175 Oregon systems (86%) list groundwater as their primary source.
Who owns and regulates Usace the Dalles-Celilo Park?
EPA lists Usace the Dalles-Celilo Park as owned by the federal 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. 9 of the 44 active systems in Wasco County (20%) are also owned by the federal government.
Does Usace the Dalles-Celilo Park have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2014. The violations listed here began between April 2005 and July 2014. By type: 10 monitoring and reporting, 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (10 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2014-07-14 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2014-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2014-05-21 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2014-04-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-10-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-06-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Usace the Dalles-Celilo Park: frequently asked questions
Who runs Usace the Dalles-Celilo Park?
Usace the Dalles-Celilo Park (PWSID OR4194202) is a transient non-community water system owned by the federal government. It is regulated by the OR state drinking water program.
How many people does Usace the Dalles-Celilo Park serve?
Usace the Dalles-Celilo Park reports serving 310 people through 2 service connections in Wasco County, Oregon.
Where does Usace the Dalles-Celilo Park get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Usace the Dalles-Celilo Park have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2014. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Usace the Dalles-Celilo Park'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. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in July 2014. For current results, consult EPA ECHO, or the OR state drinking water program.
Where can I find Usace the Dalles-Celilo Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Usace the Dalles-Celilo Park is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Wasco County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| The Dalles, City of | Wasco | 13,010 | Community | Surface water |
| Chenowith PUD | Wasco | 4,500 | Community | Groundwater |
| Barlow Water District | Wasco | 900 | Community | Groundwater |
| Ote Memaloose Rest Area | Wasco | 800 | Transient non-community | Groundwater |
| Dufur, City of | Wasco | 610 | Community | Groundwater |
| Young Life | Wasco | 497 | 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, “Usace the Dalles-Celilo Park, PWSID OR4194202, Oregon”, https://aquacensus.com/water-systems/oregon/usace-the-dalles-celilo-park-or4194202 (data as of October 1, 2026).