Public water system · WI4360657
ActiveStock Manufacturing Corp
At a glance
Stock Manufacturing Corp (PWSID WI4360657) is an active non-transient non-community water system in Manitowoc County, Wisconsin. It reports serving 37 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 10 violations for this system; 8 are health-based, and the most recent began in April 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
37
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Stock Manufacturing Corp compare with other water systems in Manitowoc County?
By EPA's size categories, Stock Manufacturing Corp is a very small system (500 people or fewer). Manitowoc County has 139 active public water systems. Its population served is well below the county average of 461 people per system, and accounts for less than 0.1% 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 non-transient non-community water system reports serving 430 people, so Stock Manufacturing Corp is well 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. Wisconsin has 891 active non-transient non-community water systems, 8.1% 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 Stock Manufacturing Corp?
EPA lists Stock Manufacturing Corp as privately owned. 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. 117 of the 139 active systems in Manitowoc County (84%) are also privately owned.
Does Stock Manufacturing Corp have drinking water violations?
EPA's records list 10 violations for this system; 8 are health-based, and the most recent began in April 2015. The violations listed here began between October 1993 and April 2015. By type: 8 contaminant level above the legal limit and 2 monitoring and reporting. The contaminant or rule involved most often is Arsenic (6 of them). EPA lists 9 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 |
|---|---|---|---|---|
| 2015-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2015-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2014-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2014-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2014-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2014-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2014-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2006-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 10 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.
Stock Manufacturing Corp: frequently asked questions
Who runs Stock Manufacturing Corp?
Stock Manufacturing Corp (PWSID WI4360657) is a non-transient non-community water system privately owned. It is regulated by the WI state drinking water program.
How many people does Stock Manufacturing Corp serve?
Stock Manufacturing Corp reports serving 37 people through 1 service connection in Manitowoc County, Wisconsin.
Where does Stock Manufacturing Corp 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 Stock Manufacturing Corp have any drinking water violations?
EPA's records list 10 violations for this system; 8 are health-based, and the most recent began in April 2015. 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 Stock Manufacturing Corp'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 10 violations for this system; 8 are health-based, and the most recent began in April 2015. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Stock Manufacturing Corp's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Stock Manufacturing Corp 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 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, “Stock Manufacturing Corp, PWSID WI4360657, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/stock-manufacturing-corp-wi4360657 (data as of October 1, 2026).