Public water system · IN5250001
ActiveArgos Municipal Water Plant
At a glance
Argos Municipal Water Plant (PWSID IN5250001) is an active community water system in Marshall County, Indiana. It reports serving 1,680 people through 733 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,680
Service connections
733
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Argos Municipal Water Plant compare with other water systems in Marshall County?
By EPA's size categories, Argos Municipal Water Plant is a small system (501 to 3,300 people). Marshall County has 87 active public water systems, and Argos Municipal Water Plant is the 6th-largest of them by population served. Its population served is about 3.8 times the county average of 442 people per system, and accounts for 4.4% of the 38,447 people reported by systems filed under the county. Across Indiana, the 3,969 active systems average 1,456 people each. Nationally, the average active community water system reports serving 6,703 people, so Argos Municipal Water Plant 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. Indiana has 770 active community water systems, 19% of the state's 3,969 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,769 Indiana systems (95%) list groundwater as their primary source.
Who owns and regulates Argos Municipal Water Plant?
EPA lists Argos Municipal Water Plant as owned by a local government. The IN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 7 of the 87 active systems in Marshall County (8%) are also owned by a local government.
Does Argos Municipal Water Plant have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2022. The violations listed here began between July 2018 and April 2022. By type: 5 monitoring, 5 monitoring and reporting, 1 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (6 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 |
|---|---|---|---|---|
| 2022-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-10-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-01-01 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2018-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2018-07-01 | Monitoring and reportingInitial, Follow-up, or Routine Source Water M/R · code 56 | Lead and Copper Rulecode 5000 | No | 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.
Argos Municipal Water Plant: frequently asked questions
Who runs Argos Municipal Water Plant?
Argos Municipal Water Plant (PWSID IN5250001) is a community water system owned by a local government. It is regulated by the IN state drinking water program.
How many people does Argos Municipal Water Plant serve?
Argos Municipal Water Plant reports serving 1,680 people through 733 service connections in Marshall County, Indiana.
Where does Argos Municipal Water Plant 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 Argos Municipal Water Plant have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2022. 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 Argos Municipal Water Plant'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, one is health-based, and the most recent began in April 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the IN state drinking water program.
Where can I find Argos Municipal Water Plant's water quality report?
As a community water system, Argos Municipal Water Plant 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 Marshall County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Plymouth Water Department | Marshall | 10,241 | Community | Groundwater |
| Bremen Water Department | Marshall | 4,516 | Community | Groundwater |
| Jellystone Park #1 | Marshall | 2,410 | Transient non-community | Groundwater |
| Culver Educational Foundation | Marshall | 1,940 | Community | Groundwater |
| Bourbon Water Department | Marshall | 1,767 | Community | Groundwater |
| Arbys Restaurant & Convenient Store 6375 | Marshall | 1,667 | 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, “Argos Municipal Water Plant, PWSID IN5250001, Indiana”, https://aquacensus.com/water-systems/indiana/argos-municipal-water-plant-in5250001 (data as of October 1, 2026).