Public water system · MI2019513
ActiveArcosa
At a glance
Arcosa (PWSID MI2019513) is an active non-transient non-community water system in Calhoun County, Michigan. It reports serving 30 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 2022.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
30
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Arcosa compare with other water systems in Calhoun County?
By EPA's size categories, Arcosa is a very small system (500 people or fewer). Calhoun County has 141 active public water systems. Its population served is well below the county average of 666 people per system, and accounts for less than 0.1% of the 93,883 people reported by systems filed under the county. Across Michigan, the 10,599 active systems average 847 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Arcosa is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Michigan has 1,402 active non-transient non-community water systems, 13% of the state's 10,599 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,214 Michigan systems (96%) list groundwater as their primary source.
Who owns and regulates Arcosa?
EPA lists Arcosa as privately owned. The MI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 128 of the 141 active systems in Calhoun County (91%) are also privately owned.
Does Arcosa have drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 2022. The violations listed here began between January 2008 and October 2022. By type: 3 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Arsenic (4 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 |
|---|---|---|---|---|
| 2022-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2018-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2015-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2008-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | 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.
Arcosa: frequently asked questions
Who runs Arcosa?
Arcosa (PWSID MI2019513) is a non-transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Arcosa serve?
Arcosa reports serving 30 people through 1 service connection in Calhoun County, Michigan.
Where does Arcosa 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 Arcosa have any drinking water violations?
EPA's records list 5 violations for this system; 2 are health-based, and the most recent began in October 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 Arcosa'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; 2 are health-based, and the most recent began in October 2022. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Arcosa's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Arcosa is a non-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 Calhoun County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Battle Creek - Verona System | Calhoun | 43,975 | Community | Groundwater |
| Albion | Calhoun | 9,144 | Community | Groundwater |
| Marshall | Calhoun | 7,088 | Community | Groundwater |
| Pennfield Township | Calhoun | 3,916 | Community | Groundwater |
| Springfield | Calhoun | 3,833 | Community | Purchased groundwater |
| Emmett Township | Calhoun | 2,550 | Community | Purchased 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, “Arcosa, PWSID MI2019513, Michigan”, https://aquacensus.com/water-systems/michigan/arcosa-mi2019513 (data as of October 1, 2026).