Public water system · IA8666002
ActiveMontour Water Supply
At a glance
Montour Water Supply (PWSID IA8666002) is an active community water system in Tama County, Iowa. It reports serving 203 people through 108 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in April 2008.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
203
Service connections
108
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Montour Water Supply compare with other water systems in Tama County?
By EPA's size categories, Montour Water Supply is a very small system (500 people or fewer). Tama County has 13 active public water systems. Its population served is well below the county average of 1,947 people per system, and accounts for 0.8% of the 25,305 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 Montour 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 Montour Water Supply?
EPA lists Montour 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. 10 of the 13 active systems in Tama County (77%) are also owned by a local government.
Does Montour Water Supply have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in April 2008. The violations listed here began between July 1983 and April 2008. By type: 5 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 5 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 |
|---|---|---|---|---|
| 2008-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-03-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1986-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Resolved |
| 1983-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
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.
Montour Water Supply: frequently asked questions
Who runs Montour Water Supply?
Montour Water Supply (PWSID IA8666002) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Montour Water Supply serve?
Montour Water Supply reports serving 203 people through 108 service connections in Tama County, Iowa.
Where does Montour 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 Montour Water Supply have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in April 2008. 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 Montour 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; none is health-based, and the most recent began in April 2008. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Montour Water Supply's water quality report?
As a community water system, Montour 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 Tama County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Poweshiek Water Association | Tama | 13,920 | Community | Groundwater |
| Tama Water Supply | Tama | 3,130 | Community | Groundwater |
| Toledo Water Supply | Tama | 2,399 | Community | Groundwater |
| Traer Municipal Water Plant | Tama | 1,583 | Community | Groundwater |
| Dysart Water Supply | Tama | 1,281 | Community | Purchased groundwater |
| Iowa Premium LLC | Tama | 841 | Non-transient non-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, “Montour Water Supply, PWSID IA8666002, Iowa”, https://aquacensus.com/water-systems/iowa/montour-water-supply-ia8666002 (data as of October 1, 2026).