Public water system · IA3420503
ActiveSt Marys Church
At a glance
St Marys Church (PWSID IA3420503) is an active transient non-community water system in Floyd County, Iowa. It reports serving 25 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in April 2012.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does St Marys Church compare with other water systems in Floyd County?
By EPA's size categories, St Marys Church is a very small system (500 people or fewer). Floyd County has 18 active public water systems. Its population served is well below the county average of 685 people per system, and accounts for 0.2% of the 12,330 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active transient non-community water system reports serving 144 people, so St Marys Church is well below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Iowa has 626 active transient non-community water systems, 34% 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 St Marys Church?
EPA lists St Marys Church as privately owned. 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. 9 of the 18 active systems in Floyd County (50%) are also privately owned.
Does St Marys Church have drinking water violations?
Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in April 2012. The violations listed here began between February 1998 and April 2012. By type: 7 contaminant level above the legal limit and 5 monitoring and reporting. The contaminant or rule involved most often is Nitrate (12 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2012-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2002-05-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2001-08-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2001-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2001-06-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2000-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2000-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2000-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 1999-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 1999-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 1998-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 1998-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitratecode 1040 | Yes | Resolved |
The 12 most recent 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.
St Marys Church: frequently asked questions
Who runs St Marys Church?
St Marys Church (PWSID IA3420503) is a transient non-community water system privately owned. It is regulated by the IA state drinking water program.
How many people does St Marys Church serve?
St Marys Church reports serving 25 people through 2 service connections in Floyd County, Iowa.
Where does St Marys Church 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 St Marys Church have any drinking water violations?
Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in April 2012. 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 St Marys Church'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. Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in April 2012. For current results, consult EPA ECHO, or the IA state drinking water program.
Where can I find St Marys Church's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. St Marys Church is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Floyd County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Charles City Water Supply | Floyd | 7,446 | Community | Groundwater |
| Nora Springs Water Supply | Floyd | 1,369 | Community | Groundwater |
| 218 Fuel Express | Floyd | 914 | Transient non-community | Groundwater |
| Rockford Water Supply | Floyd | 762 | Community | Groundwater |
| Rudd Waterworks | Floyd | 358 | Community | Groundwater |
| Cedar Ridge Golf Course | Floyd | 316 | 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, “St Marys Church, PWSID IA3420503, Iowa”, https://aquacensus.com/water-systems/iowa/st-marys-church-ia3420503 (data as of October 1, 2026).