Public water system · MI2032539
ActivePfizer
At a glance
Pfizer (PWSID MI2032539) is an active non-transient non-community water system in Kalamazoo County, Michigan. It reports serving 4,000 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in October 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,000
Service connections
3
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Pfizer compare with other water systems in Kalamazoo County?
By EPA's size categories, Pfizer is a medium system (3,301 to 10,000 people). Kalamazoo County has 188 active public water systems, and Pfizer is the 3rd-largest of them by population served. Its population served is about 164% above the county average of 1,513 people per system, and accounts for 1.4% of the 284,488 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 Pfizer is about 9.3 times 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 Pfizer?
EPA lists Pfizer 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. 172 of the 188 active systems in Kalamazoo County (91%) are also privately owned.
Does Pfizer have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in October 2021. The violations listed here began between April 2016 and October 2021. By type: 1 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Arsenic (2 of them). 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 |
|---|---|---|---|---|
| 2021-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2016-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | 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.
Pfizer: frequently asked questions
Who runs Pfizer?
Pfizer (PWSID MI2032539) is a non-transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Pfizer serve?
Pfizer reports serving 4,000 people through 3 service connections in Kalamazoo County, Michigan.
Where does Pfizer 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 Pfizer have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in October 2021. 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 Pfizer'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; 1 is health-based, and the most recent began in October 2021. For current results, consult EPA ECHO, or the MI state drinking water program.
Where can I find Pfizer's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Pfizer 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 Kalamazoo County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Kalamazoo | Kalamazoo | 192,992 | Community | Groundwater |
| Portage | Kalamazoo | 46,292 | Community | Groundwater |
| Vicksburg | Kalamazoo | 2,906 | Community | Groundwater |
| Galesburg | Kalamazoo | 2,377 | Community | Groundwater |
| Mdot - Galesburg Rest Area | Kalamazoo | 1,932 | Transient non-community | Groundwater |
| Schoolcraft | Kalamazoo + 1 more | 1,405 | 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, “Pfizer, PWSID MI2032539, Michigan”, https://aquacensus.com/water-systems/michigan/pfizer-mi2032539 (data as of October 1, 2026).