Public water system · IA7905088
ActiveBarnes City Water Supply
At a glance
Barnes City Water Supply (PWSID IA7905088) is an active community water system in Poweshiek County, Iowa. It reports serving 156 people through 90 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
156
Service connections
90
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Barnes City Water Supply compare with other water systems in Poweshiek County?
By EPA's size categories, Barnes City Water Supply is a very small system (500 people or fewer). Poweshiek County has 8 active public water systems. Its population served is well below the county average of 1,919 people per system, and accounts for 1% of the 15,352 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 Barnes 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 156 Iowa systems (8.5%) list purchased groundwater as their primary source.
Who owns and regulates Barnes City Water Supply?
EPA lists Barnes 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. 6 of the 8 active systems in Poweshiek County (75%) are also owned by a local government.
Does Barnes City Water Supply have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in July 2025. The violations listed here began between May 1991 and July 2025. By type: 4 public notice, recordkeeping or other, 2 monitoring and reporting, 1 required treatment not met and 1 monitoring. The contaminant or rule involved most often is Consumer Confidence Rule (4 of them). EPA lists 7 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-07-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Unaddressed |
| 2022-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-01-27 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2016-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2015-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2011-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1991-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 8 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.
Barnes City Water Supply: frequently asked questions
Who runs Barnes City Water Supply?
Barnes City Water Supply (PWSID IA7905088) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Barnes City Water Supply serve?
Barnes City Water Supply reports serving 156 people through 90 service connections in Poweshiek County, Iowa.
Where does Barnes City Water Supply get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Barnes City Water Supply have any drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in July 2025. 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 Barnes 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 8 violations for this system; 1 is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Barnes City Water Supply's water quality report?
As a community water system, Barnes 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 Poweshiek County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Grinnell Water Department | Poweshiek | 9,564 | Community | Groundwater |
| Ponderosa Utilities Inc.. | Poweshiek | 1,750 | Community | Purchased groundwater |
| Montezuma Muni Water Supply | Poweshiek | 1,545 | Community | Groundwater |
| Brooklyn Water Department | Poweshiek | 1,505 | Community | Purchased groundwater |
| Grinnell MHP Mhc | Poweshiek | 313 | Community | Purchased groundwater |
| Malcom Water Supply | Poweshiek | 270 | Community | Purchased groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Barnes City Water Supply, PWSID IA7905088, Iowa”, https://aquacensus.com/water-systems/iowa/barnes-city-water-supply-ia7905088 (data as of October 1, 2026).