Public water system · IA9133075
ActiveIndianola Water Supply
At a glance
Indianola Water Supply (PWSID IA9133075) is an active community water system in Warren County, Iowa. It reports serving 15,833 people through 5,500 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; 3 are health-based, and the most recent began in December 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
15,833
Service connections
5,500
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Indianola Water Supply compare with other water systems in Warren County?
By EPA's size categories, Indianola Water Supply is a large system (10,001 to 100,000 people). Warren County has 14 active public water systems, and Indianola Water Supply is the 2nd-largest of them by population served. Its population served is about 3.9 times the county average of 4,106 people per system, and accounts for 28% of the 57,488 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 Indianola Water Supply is about 136% above 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 Indianola Water Supply?
EPA lists Indianola 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. 8 of the 14 active systems in Warren County (57%) are also owned by a local government.
Does Indianola Water Supply have drinking water violations?
EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in December 2019. The violations listed here began between July 1992 and December 2019. By type: 5 monitoring and reporting, 3 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 2019-12-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2003-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 1996-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-07-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1993-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1992-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | 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.
Indianola Water Supply: frequently asked questions
Who runs Indianola Water Supply?
Indianola Water Supply (PWSID IA9133075) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Indianola Water Supply serve?
Indianola Water Supply reports serving 15,833 people through 5,500 service connections in Warren County, Iowa.
Where does Indianola 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 Indianola Water Supply have any drinking water violations?
EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in December 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 Indianola 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; 3 are health-based, and the most recent began in December 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Indianola Water Supply's water quality report?
As a community water system, Indianola 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 Warren County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Warren Water District | Warren + 1 more | 20,095 | Community | Purchased surface water |
| Norwalk Water Supply | Warren | 14,334 | Community | Purchased surface water |
| Carlisle Water Supply | Warren | 4,170 | Community | Groundwater |
| Milo Public Water Supply | Warren | 788 | Community | Purchased surface water |
| New Virginia Water Supply | Warren | 498 | Community | Purchased surface water |
| Martensdale Water Supply | Warren | 421 | Community | Purchased surface water |
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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, “Indianola Water Supply, PWSID IA9133075, Iowa”, https://aquacensus.com/water-systems/iowa/indianola-water-supply-ia9133075 (data as of October 1, 2026).