Public water system · 055293802
ActiveMtigwaakiis
At a glance
Mtigwaakiis (PWSID 055293802) is an active community water system in Michigan. It reports serving 35 people through 5 service connections. Its primary water source is groundwater, and EPA lists it as Native American-owned. EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in December 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
35
Service connections
5
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mtigwaakiis compare with other water systems in Michigan?
By EPA's size categories, Mtigwaakiis is a very small system (500 people or fewer). Across Michigan, the 10,599 active systems average 847 people each. Nationally, the average active community water system reports serving 6,703 people, so Mtigwaakiis 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. Michigan has 1,332 active 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 Mtigwaakiis?
EPA lists Mtigwaakiis as Native American-owned. The EPA Region 05 is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act.
Does Mtigwaakiis have drinking water violations?
EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in December 2013. The violations listed here began between September 2011 and December 2013. By type: 2 contaminant level above the legal limit and 2 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2013-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 4 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.
Mtigwaakiis: frequently asked questions
Who runs Mtigwaakiis?
Mtigwaakiis (PWSID 055293802) is a community water system Native American-owned. It is regulated by the EPA Region 05.
How many people does Mtigwaakiis serve?
Mtigwaakiis reports serving 35 people through 5 service connections in Michigan.
Where does Mtigwaakiis 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 Mtigwaakiis have any drinking water violations?
EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in December 2013. 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 Mtigwaakiis' 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 4 violations for this system; 2 are health-based, and the most recent began in December 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the EPA Region 05.
Where can I find Mtigwaakiis' water quality report?
As a community water system, Mtigwaakiis 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 Michigan
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Detroit City of | Wayne | 633,218 | Community | Purchased surface water |
| Grand Rapids | Kent | 306,901 | Community | Surface water |
| Kalamazoo | Kalamazoo | 192,992 | Community | Groundwater |
| Lansing Board of Water & Light | Ingham | 166,000 | Community | Groundwater |
| Warren, City of | Macomb | 134,056 | Community | Purchased surface water |
| Sterling Heights, City of | Macomb | 127,000 | Community | Purchased surface water |
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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, “Mtigwaakiis, PWSID 055293802, Michigan”, https://aquacensus.com/water-systems/michigan/mtigwaakiis-055293802 (data as of October 1, 2026).