Public water system · IA5200982
ActiveOakdale Hospital Water System
At a glance
Oakdale Hospital Water System (PWSID IA5200982) is an active non-transient non-community water system in Johnson County, Iowa. It reports serving 450 people through 18 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
450
Service connections
18
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Oakdale Hospital Water System compare with other water systems in Johnson County?
By EPA's size categories, Oakdale Hospital Water System is a very small system (500 people or fewer). Johnson County has 125 active public water systems. Its population served is well below the county average of 1,384 people per system, and accounts for 0.3% of the 172,955 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Oakdale Hospital Water System is roughly in line with that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Iowa has 118 active non-transient non-community water systems, 6.5% of the state's 1,828 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,502 Iowa systems (82%) list groundwater as their primary source.
Who owns and regulates Oakdale Hospital Water System?
EPA lists Oakdale Hospital Water System as owned by a state government. The IA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 125 active systems in Johnson County (4.8%) are also owned by a state government.
Does Oakdale Hospital Water System have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 2020. The violations listed here began between August 2020 and August 2020. By type: 2 monitoring and reporting. The contaminants or rules involved are Total trihalomethanes (TTHM) and Haloacetic acids (HAA5). EPA lists 2 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 |
|---|---|---|---|---|
| 2020-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2020-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
All 2 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.
Oakdale Hospital Water System: frequently asked questions
Who runs Oakdale Hospital Water System?
Oakdale Hospital Water System (PWSID IA5200982) is a non-transient non-community water system owned by a state government. It is regulated by the IA state drinking water program.
How many people does Oakdale Hospital Water System serve?
Oakdale Hospital Water System reports serving 450 people through 18 service connections in Johnson County, Iowa.
Where does Oakdale Hospital Water System 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 Oakdale Hospital Water System have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 2020. 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 Oakdale Hospital Water System'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 records list 2 violations for this system; none is health-based, and the most recent began in August 2020. For current results, consult EPA ECHO, or the IA state drinking water program.
Where can I find Oakdale Hospital Water System's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Oakdale Hospital Water System is a non-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 Johnson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Iowa City Water Department | Johnson | 68,753 | Community | Surface water |
| University Water System | Johnson | 26,684 | Community | Surface water |
| North Liberty Water Supply | Johnson | 23,276 | Community | Groundwater |
| Coralville Muni Water System | Johnson | 22,318 | Community | Groundwater |
| Tiffin Water Supply | Johnson | 7,577 | Community | Groundwater |
| Solon Water Dept | Johnson | 3,018 | Community | Groundwater |
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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, “Oakdale Hospital Water System, PWSID IA5200982, Iowa”, https://aquacensus.com/water-systems/iowa/oakdale-hospital-water-system-ia5200982 (data as of October 1, 2026).