Public water system · IA3126116
ActiveJohn Deere Dubuque Works
At a glance
John Deere Dubuque Works (PWSID IA3126116) is an active non-transient non-community water system in Dubuque County, Iowa. It reports serving 3,000 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; none is health-based, and the most recent began in April 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,000
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does John Deere Dubuque Works compare with other water systems in Dubuque County?
By EPA's size categories, John Deere Dubuque Works is a small system (501 to 3,300 people). Dubuque County has 74 active public water systems, and John Deere Dubuque Works is the 4th-largest of them by population served. Its population served is about 139% above the county average of 1,255 people per system, and accounts for 3.2% of the 92,853 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 John Deere Dubuque Works is about 7 times 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 John Deere Dubuque Works?
EPA lists John Deere Dubuque Works as privately owned. 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. 49 of the 74 active systems in Dubuque County (66%) are also privately owned.
Does John Deere Dubuque Works have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in April 2019. The violations listed here began between January 2010 and April 2019. By type: 3 monitoring and reporting. The contaminant or rule involved most often is Nitrate (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2019-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2014-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2010-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 3 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.
John Deere Dubuque Works: frequently asked questions
Who runs John Deere Dubuque Works?
John Deere Dubuque Works (PWSID IA3126116) is a non-transient non-community water system privately owned. It is regulated by the IA state drinking water program.
How many people does John Deere Dubuque Works serve?
John Deere Dubuque Works reports serving 3,000 people through 2 service connections in Dubuque County, Iowa.
Where does John Deere Dubuque Works 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 John Deere Dubuque Works have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in April 2019. 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 John Deere Dubuque Works' 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 3 violations for this system; none is health-based, and the most recent began in April 2019. For current results, consult EPA ECHO, or the IA state drinking water program.
Where can I find John Deere Dubuque Works' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. John Deere Dubuque Works 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 Dubuque County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Dubuque Water Works | Dubuque | 59,667 | Community | Groundwater |
| Asbury Municipal Water System | Dubuque | 5,943 | Community | Groundwater |
| Dyersville Municipal Water Co | Dubuque | 4,477 | Community | Groundwater |
| Cascade Municipal Water Supply | Dubuque | 2,386 | Community | Groundwater |
| Peosta Water Supply | Dubuque | 2,278 | Community | Groundwater |
| Epworth Water Supply | Dubuque | 2,023 | 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, “John Deere Dubuque Works, PWSID IA3126116, Iowa”, https://aquacensus.com/water-systems/iowa/john-deere-dubuque-works-ia3126116 (data as of October 1, 2026).