Public water system · MI2048770
ActiveDewys Manufacturing
At a glance
Dewys Manufacturing (PWSID MI2048770) is an active non-transient non-community water system in Ottawa County, Michigan. It reports serving 150 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Dewys Manufacturing compare with other water systems in Ottawa County?
By EPA's size categories, Dewys Manufacturing is a very small system (500 people or fewer). Ottawa County has 225 active public water systems. Its population served is well below the county average of 1,081 people per system, and accounts for less than 0.1% of the 243,313 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 Dewys Manufacturing is about 65% 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 Dewys Manufacturing?
EPA lists Dewys Manufacturing 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. 202 of the 225 active systems in Ottawa County (90%) are also privately owned.
Does Dewys Manufacturing have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2021. The violations listed here began between July 1995 and October 2021. By type: 10 monitoring and reporting and 2 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 11 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2021-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2008-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2007-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2002-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1997-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1996-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1995-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
The 12 most recent 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.
Dewys Manufacturing: frequently asked questions
Who runs Dewys Manufacturing?
Dewys Manufacturing (PWSID MI2048770) is a non-transient non-community water system privately owned. It is regulated by the MI state drinking water program.
How many people does Dewys Manufacturing serve?
Dewys Manufacturing reports serving 150 people through 1 service connection in Ottawa County, Michigan.
Where does Dewys Manufacturing 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 Dewys Manufacturing have any drinking water violations?
Of the 12 most recent violations in EPA's records, none 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 Dewys Manufacturing'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. Of the 12 most recent violations in EPA's records, none 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 Dewys Manufacturing's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Dewys Manufacturing 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 Ottawa County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Holland Board of Public Works | Ottawa | 49,687 | Community | Surface water |
| Georgetown Township | Ottawa | 41,086 | Community | Purchased surface water |
| Holland Township Consolidated | Ottawa | 26,100 | Community | Purchased surface water |
| Allendale Township | Ottawa | 19,725 | Community | Purchased surface water |
| Grand Haven Township | Ottawa | 15,051 | Community | Purchased surface water |
| Grand Haven | Ottawa | 10,412 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Dewys Manufacturing, PWSID MI2048770, Michigan”, https://aquacensus.com/water-systems/michigan/dewys-manufacturing-mi2048770 (data as of October 1, 2026).