Public water system · IA9408087
ActiveBarnum Water Supply
At a glance
Barnum Water Supply (PWSID IA9408087) is an active community water system in Webster County, Iowa. It reports serving 175 people through 77 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; none is health-based, and the most recent began in April 1989.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
175
Service connections
77
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Barnum Water Supply compare with other water systems in Webster County?
By EPA's size categories, Barnum Water Supply is a very small system (500 people or fewer). Webster County has 29 active public water systems. Its population served is well below the county average of 1,330 people per system, and accounts for 0.5% of the 38,572 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 Barnum 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 Barnum Water Supply?
EPA lists Barnum 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. 15 of the 29 active systems in Webster County (52%) are also owned by a local government.
Does Barnum Water Supply have drinking water violations?
EPA's records list 9 violations for this system; none is health-based, and the most recent began in April 1989. The violations listed here began between July 1986 and April 1989. By type: 9 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule, Selenium, Arsenic and Cadmium. EPA lists 9 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 |
|---|---|---|---|---|
| 1989-04-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1986-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Resolved |
| 1986-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 1986-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Resolved |
| 1986-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1986-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Resolved |
| 1986-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Resolved |
| 1986-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Resolved |
| 1986-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Resolved |
All 9 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.
Barnum Water Supply: frequently asked questions
Who runs Barnum Water Supply?
Barnum Water Supply (PWSID IA9408087) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Barnum Water Supply serve?
Barnum Water Supply reports serving 175 people through 77 service connections in Webster County, Iowa.
Where does Barnum 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 Barnum Water Supply have any drinking water violations?
EPA's records list 9 violations for this system; none is health-based, and the most recent began in April 1989. 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 Barnum 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 9 violations for this system; none is health-based, and the most recent began in April 1989. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Barnum Water Supply's water quality report?
As a community water system, Barnum 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 Webster County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Fort Dodge Water Supply | Webster | 25,874 | Community | Groundwater |
| Xenia Rwd (North) | Webster + 3 more | 6,122 | Community | Groundwater |
| Gowrie Muni Utilities Water Dept | Webster | 954 | Community | Groundwater |
| Dayton Municipal Water Supply | Webster | 772 | Community | Groundwater |
| Badger Water Supply | Webster | 561 | Community | Groundwater |
| Otho Water Supply | Webster | 431 | Community | 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, “Barnum Water Supply, PWSID IA9408087, Iowa”, https://aquacensus.com/water-systems/iowa/barnum-water-supply-ia9408087 (data as of October 1, 2026).