Public water system · IA0607013
ActiveBlairstown Water Supply
At a glance
Blairstown Water Supply (PWSID IA0607013) is an active community water system in Benton County, Iowa. It reports serving 738 people through 325 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in August 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
738
Service connections
325
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Blairstown Water Supply compare with other water systems in Benton County?
By EPA's size categories, Blairstown Water Supply is a small system (501 to 3,300 people). Benton County has 23 active public water systems. Its population served is about 11% below the county average of 826 people per system, and accounts for 3.9% of the 19,007 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 Blairstown 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 Blairstown Water Supply?
EPA lists Blairstown 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. 14 of the 23 active systems in Benton County (61%) are also owned by a local government.
Does Blairstown Water Supply have drinking water violations?
EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in August 2024. The violations listed here began between July 1988 and August 2024. By type: 5 monitoring and reporting and 3 contaminant level above the legal limit. The contaminant or rule involved most often is Nitrite (2 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 2024-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitritecode 1041 | Yes | Resolved |
| 2005-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 1996-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 1995-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Xylenes, Totalcode 2955 | No | Resolved |
| 1993-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1992-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1988-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | 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.
Blairstown Water Supply: frequently asked questions
Who runs Blairstown Water Supply?
Blairstown Water Supply (PWSID IA0607013) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Blairstown Water Supply serve?
Blairstown Water Supply reports serving 738 people through 325 service connections in Benton County, Iowa.
Where does Blairstown 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 Blairstown Water Supply have any drinking water violations?
EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in August 2024. 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 Blairstown 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; 3 are health-based, and the most recent began in August 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Blairstown Water Supply's water quality report?
As a community water system, Blairstown 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 Benton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Vinton Municipal Water Dept | Benton | 4,938 | Community | Groundwater |
| Belle Plaine Water Dept | Benton | 2,380 | Community | Groundwater |
| Atkins Municipal Water Works | Benton | 2,056 | Community | Groundwater |
| Poweshiek Water Association (Cr) | Benton | 2,000 | Community | Purchased groundwater under influence |
| Urbana Water Supply | Benton | 1,554 | Community | Groundwater |
| Shellsburg Water Supply | Benton | 961 | 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, “Blairstown Water Supply, PWSID IA0607013, Iowa”, https://aquacensus.com/water-systems/iowa/blairstown-water-supply-ia0607013 (data as of October 1, 2026).