Public water system · IA4622095
ActiveDakota City Water Supply
At a glance
Dakota City Water Supply (PWSID IA4622095) is an active community water system in Humboldt County, Iowa. It reports serving 769 people through 422 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2005.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
769
Service connections
422
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Dakota City Water Supply compare with other water systems in Humboldt County?
By EPA's size categories, Dakota City Water Supply is a small system (501 to 3,300 people). Humboldt County has 13 active public water systems, and Dakota City Water Supply is the 2nd-largest of them by population served. Its population served is about 40% above the county average of 550 people per system, and accounts for 11% of the 7,145 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 Dakota City 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 Dakota City Water Supply?
EPA lists Dakota City 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. 11 of the 13 active systems in Humboldt County (85%) are also owned by a local government.
Does Dakota City Water Supply have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2005. The violations listed here began between October 1995 and July 2005. By type: 5 monitoring and reporting. The contaminants or rules involved are Haloacetic acids (HAA5), Atrazine, Xylenes, Total and Ethylbenzene. EPA lists 5 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 |
|---|---|---|---|---|
| 2005-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 1996-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Atrazinecode 2050 | No | Resolved |
| 1996-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Xylenes, Totalcode 2955 | No | Resolved |
| 1996-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 1995-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 5 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.
Dakota City Water Supply: frequently asked questions
Who runs Dakota City Water Supply?
Dakota City Water Supply (PWSID IA4622095) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Dakota City Water Supply serve?
Dakota City Water Supply reports serving 769 people through 422 service connections in Humboldt County, Iowa.
Where does Dakota City 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 Dakota City Water Supply have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in July 2005. 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 Dakota City 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 5 violations for this system; none is health-based, and the most recent began in July 2005. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Dakota City Water Supply's water quality report?
As a community water system, Dakota City 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 Humboldt County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Humboldt Municipal Water Dept | Humboldt | 4,792 | Community | Groundwater under influence of surface water |
| Livermore Water Supply | Humboldt | 383 | Community | Groundwater |
| Bode Municipal Water Supply | Humboldt | 304 | Community | Groundwater |
| Renwick Munic Water Supply | Humboldt | 234 | Community | Groundwater |
| Thor Water Works | Humboldt | 181 | Community | Groundwater |
| Rutland Water Supply | Humboldt | 116 | 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, “Dakota City Water Supply, PWSID IA4622095, Iowa”, https://aquacensus.com/water-systems/iowa/dakota-city-water-supply-ia4622095 (data as of October 1, 2026).