Public water system · OH0937812
ActiveMolson Coors USA LLC
At a glance
Molson Coors USA LLC (PWSID OH0937812) is an active non-transient non-community water system in Butler County, Ohio. It reports serving 550 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 1999.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
550
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Molson Coors USA LLC compare with other water systems in Butler County?
By EPA's size categories, Molson Coors USA LLC is a small system (501 to 3,300 people). Butler County has 20 active public water systems. Its population served is well below the county average of 18,928 people per system, and accounts for 0.1% of the 378,564 people reported by systems filed under the county. Across Ohio, the 3,854 active systems average 2,767 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Molson Coors USA LLC is about 28% above 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. Ohio has 544 active non-transient non-community water systems, 14% of the state's 3,854 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,446 Ohio systems (89%) list groundwater as their primary source.
Who owns and regulates Molson Coors USA LLC?
EPA lists Molson Coors USA LLC as privately owned. The OH 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 20 active systems in Butler County (50%) are also privately owned.
Does Molson Coors USA LLC have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 1999. The violations listed here began between January 1994 and April 1999. By type: 2 monitoring and reporting. The contaminants or rules involved are Total coliform bacteria (TCR) and Nitrate. EPA lists 2 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 |
|---|---|---|---|---|
| 1999-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 2 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.
Molson Coors USA LLC: frequently asked questions
Who runs Molson Coors USA LLC?
Molson Coors USA LLC (PWSID OH0937812) is a non-transient non-community water system privately owned. It is regulated by the OH state drinking water program.
How many people does Molson Coors USA LLC serve?
Molson Coors USA LLC reports serving 550 people through 1 service connection in Butler County, Ohio.
Where does Molson Coors USA LLC 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 Molson Coors USA LLC have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in April 1999. 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 Molson Coors USA LLC'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 2 violations for this system; none is health-based, and the most recent began in April 1999. For current results, consult EPA ECHO, or the OH state drinking water program.
Where can I find Molson Coors USA LLC's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Molson Coors USA LLC 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 Butler County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Butler Co. Water District 2 Pws | Butler | 116,572 | Community | Purchased surface water |
| Hamilton Public Water System | Butler | 62,447 | Community | Groundwater |
| Middletown City Pws | Butler | 51,229 | Community | Groundwater |
| Fairfield City Pws | Butler | 44,907 | Community | Groundwater |
| Southwest Regional Water District | Butler | 42,856 | Community | Groundwater |
| Oxford City Pws | Butler | 24,000 | 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, “Molson Coors USA LLC, PWSID OH0937812, Ohio”, https://aquacensus.com/water-systems/ohio/molson-coors-usa-llc-oh0937812 (data as of October 1, 2026).