Public water system · IA7139032
ActivePaullina Municipal Water Supply
At a glance
Paullina Municipal Water Supply (PWSID IA7139032) is an active community water system in O'Brien County, Iowa. It reports serving 996 people through 637 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; 3 are health-based, and the most recent began in December 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
996
Service connections
637
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Paullina Municipal Water Supply compare with other water systems in O'Brien County?
By EPA's size categories, Paullina Municipal Water Supply is a small system (501 to 3,300 people). O'Brien County has 7 active public water systems, and Paullina Municipal Water Supply is the 4th-largest of them by population served. Its population served is about 38% below the county average of 1,597 people per system, and accounts for 8.9% of the 11,182 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 Paullina Municipal 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 Paullina Municipal Water Supply?
EPA lists Paullina Municipal 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. 7 of the 7 active systems in O'Brien County (100%) are also owned by a local government.
Does Paullina Municipal Water Supply have drinking water violations?
EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in December 2021. The violations listed here began between September 1979 and December 2021. By type: 3 contaminant level above the legal limit and 2 monitoring and reporting. The contaminant or rule involved most often is Nitrate (3 of them). EPA lists 3 as archived and 2 as resolved. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. 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 |
|---|---|---|---|---|
| 2021-12-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2001-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 1986-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitratecode 1040 | Yes | Archived |
| 1986-01-13 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Archived |
| 1979-09-17 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitratecode 1040 | Yes | Archived |
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.
Paullina Municipal Water Supply: frequently asked questions
Who runs Paullina Municipal Water Supply?
Paullina Municipal Water Supply (PWSID IA7139032) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Paullina Municipal Water Supply serve?
Paullina Municipal Water Supply reports serving 996 people through 637 service connections in O'Brien County, Iowa.
Where does Paullina Municipal 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 Paullina Municipal Water Supply have any drinking water violations?
EPA's records list 5 violations for this system; 3 are health-based, and the most recent began in December 2021. 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 Paullina Municipal 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; 3 are health-based, and the most recent began in December 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Paullina Municipal Water Supply's water quality report?
As a community water system, Paullina Municipal 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 O'Brien County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sheldon Water Department | O'Brien | 5,512 | Community | Groundwater |
| Hartley Municipal Water Department | O'Brien | 1,605 | Community | Groundwater |
| Sanborn Water Supply | O'Brien | 1,392 | Community | Groundwater |
| Primghar Municipal Water Supply | O'Brien | 902 | Community | Groundwater |
| Sutherland Water Supply | O'Brien | 629 | Community | Purchased groundwater |
| Calumet Water Supply | O'Brien | 146 | Community | Purchased 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, “Paullina Municipal Water Supply, PWSID IA7139032, Iowa”, https://aquacensus.com/water-systems/iowa/paullina-municipal-water-supply-ia7139032 (data as of October 1, 2026).