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Public water system · MI0070004

Active

Corewell Health United Hospital

At a glance

Corewell Health United Hospital (PWSID MI0070004) is an active non-transient non-community water system in Montcalm County, Michigan. It reports serving 280 people through 1 service connection. Its primary water source is purchased groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

280

Service connections

1

Primary source

GWP

Purchased groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDMI0070004
System typeNon-transient non-community water system
Activity statusActive
Population served280
Service connections1
Primary water sourcePurchased groundwater
Owner typePrivate
Primacy agencyMI state drinking water program
City servedGreenville
StateMichigan
ZIP—
CountyMontcalm County

How does Corewell Health United Hospital compare with other water systems in Montcalm County?

By EPA's size categories, Corewell Health United Hospital is a very small system (500 people or fewer). Montcalm County has 160 active public water systems. Its population served is about 11% below the county average of 316 people per system, and accounts for 0.6% of the 50,482 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 Corewell Health United Hospital is about 35% 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 42 Michigan systems (0.4%) list purchased groundwater as their primary source.

Who owns and regulates Corewell Health United Hospital?

EPA lists Corewell Health United Hospital 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. 151 of the 160 active systems in Montcalm County (94%) are also privately owned.

Does Corewell Health United Hospital have drinking water violations?

No SDWA violations on record.

EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Corewell Health United Hospital. For the latest compliance status, check EPA ECHO for current compliance history.

Corewell Health United Hospital: frequently asked questions

Who runs Corewell Health United Hospital?

Corewell Health United Hospital (PWSID MI0070004) is a non-transient non-community water system privately owned. It is regulated by the MI state drinking water program.

How many people does Corewell Health United Hospital serve?

Corewell Health United Hospital reports serving 280 people through 1 service connection in Montcalm County, Michigan.

Where does Corewell Health United Hospital get its water?

EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.

Does Corewell Health United Hospital have any drinking water violations?

EPA's Safe Drinking Water Act records list no violations for this system.

Is Corewell Health United Hospital'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 Safe Drinking Water Act records list no violations for this system. For current results, consult EPA ECHO, or the MI state drinking water program.

Where can I find Corewell Health United Hospital's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Corewell Health United Hospital 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 Montcalm County

Water systemCountyPopulation servedTypeSource
GreenvilleMontcalm8,816CommunityGroundwater
Carson CityMontcalm3,322CommunityGroundwater
Howard CityMontcalm1,800CommunityGroundwater
Montcalm Community CollegeMontcalm1,484CommunityGroundwater
StantonMontcalm1,417CommunityGroundwater
Montcalm Community CollegeMontcalm1,400Non-transient non-communityGroundwater

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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, “Corewell Health United Hospital, PWSID MI0070004, Michigan”, https://aquacensus.com/water-systems/michigan/corewell-health-united-hospital-mi0070004 (data as of October 1, 2026).