Public water system · IA2520098
ActiveDallas Center Water Supply
At a glance
Dallas Center Water Supply (PWSID IA2520098) is an active community water system in Dallas County, Iowa. It reports serving 1,901 people through 605 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,901
Service connections
605
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Dallas Center Water Supply compare with other water systems in Dallas County?
By EPA's size categories, Dallas Center Water Supply is a small system (501 to 3,300 people). Dallas County has 23 active public water systems. Its population served is well below the county average of 6,420 people per system, and accounts for 1.3% of the 147,667 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active community water system reports serving 6,703 people, so Dallas Center Water Supply is well below 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. Iowa has 1,084 active community water systems, 59% 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 Dallas Center Water Supply?
EPA lists Dallas Center Water Supply as owned by a local 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. 13 of the 23 active systems in Dallas County (57%) are also owned by a local government.
Does Dallas Center Water Supply have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2023. By type: 1 monitoring. The contaminant or rule involved is Revised Total Coliform Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2023-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
The one violation in EPA's records.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.
Dallas Center Water Supply: frequently asked questions
Who runs Dallas Center Water Supply?
Dallas Center Water Supply (PWSID IA2520098) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Dallas Center Water Supply serve?
Dallas Center Water Supply reports serving 1,901 people through 605 service connections in Dallas County, Iowa.
Where does Dallas Center Water Supply 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 Dallas Center Water Supply have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2023. 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 Dallas Center Water Supply'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 one violation for this system; it is not health-based, and the most recent began in October 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Dallas Center Water Supply's water quality report?
As a community water system, Dallas Center Water Supply 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 Dallas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| West Des Moines Water Works | Dallas + 1 more | 73,959 | Community | Purchased surface water |
| Waukee Water Supply | Dallas | 31,823 | Community | Purchased surface water |
| Xenia Rwd (Des Moines) | Dallas | 12,860 | Community | Purchased surface water |
| Perry Municipal Water Works | Dallas | 7,836 | Community | Groundwater |
| Adel Municipal Water Works | Dallas | 6,461 | Community | Groundwater |
| Xenia Rwd (Woodward) | Dallas | 3,465 | Community | Purchased 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, “Dallas Center Water Supply, PWSID IA2520098, Iowa”, https://aquacensus.com/water-systems/iowa/dallas-center-water-supply-ia2520098 (data as of October 1, 2026).