Public water system · WI4360429
ActiveMaribel Waterworks
At a glance
Maribel Waterworks (PWSID WI4360429) is an active community water system in Manitowoc County, Wisconsin. It reports serving 355 people through 131 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; none is health-based, and the most recent began in January 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
355
Service connections
131
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Maribel Waterworks compare with other water systems in Manitowoc County?
By EPA's size categories, Maribel Waterworks is a very small system (500 people or fewer). Manitowoc County has 139 active public water systems. Its population served is about 23% below the county average of 461 people per system, and accounts for 0.6% of the 64,022 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active community water system reports serving 6,703 people, so Maribel Waterworks 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. Wisconsin has 1,053 active community water systems, 9.5% of the state's 11,056 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,978 Wisconsin systems (99%) list groundwater as their primary source.
Who owns and regulates Maribel Waterworks?
EPA lists Maribel Waterworks as owned by a local government. The WI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 18 of the 139 active systems in Manitowoc County (13%) are also owned by a local government.
Does Maribel Waterworks have drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in January 2014. The violations listed here began between August 2005 and January 2014. By type: 4 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Gross alpha (excluding radon and uranium), Radium-228, Combined Radium (-226 and -228) and Consumer Confidence Rule. EPA lists 5 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 |
|---|---|---|---|---|
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 2011-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2005-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 5 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.
Maribel Waterworks: frequently asked questions
Who runs Maribel Waterworks?
Maribel Waterworks (PWSID WI4360429) is a community water system owned by a local government. It is regulated by the WI state drinking water program.
How many people does Maribel Waterworks serve?
Maribel Waterworks reports serving 355 people through 131 service connections in Manitowoc County, Wisconsin.
Where does Maribel Waterworks 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 Maribel Waterworks have any drinking water violations?
EPA's records list 5 violations for this system; none is health-based, and the most recent began in January 2014. 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 Maribel Waterworks' 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 5 violations for this system; none is health-based, and the most recent began in January 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the WI state drinking water program.
Where can I find Maribel Waterworks' water quality report?
As a community water system, Maribel Waterworks 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 Manitowoc County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Manitowoc Waterworks | Manitowoc | 34,500 | Community | Surface water |
| Two Rivers Waterworks | Manitowoc | 11,270 | Community | Surface water |
| Kiel Waterworks | Manitowoc | 3,932 | Community | Groundwater |
| Cleveland Waterworks | Manitowoc | 1,524 | Community | Groundwater |
| Mishicot Waterworks | Manitowoc | 1,432 | Community | Groundwater |
| Reedsville Waterworks | Manitowoc | 1,200 | 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, “Maribel Waterworks, PWSID WI4360429, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/maribel-waterworks-wi4360429 (data as of October 1, 2026).