Skip to content
AquaCensus

Public water system · WI2680515

Active

Patch Work Ltd

At a glance

Patch Work Ltd (PWSID WI2680515) is an active transient non-community water system in Waukesha County, Wisconsin. It reports serving 35 people through 1 service connection. Its primary water source is 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

35

Service connections

1

Primary source

GW

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDWI2680515
System typeTransient non-community water system
Activity statusActive
Population served35
Service connections1
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyWI state drinking water program
City servedElm Grove
StateWisconsin
ZIP—
CountyWaukesha County

How does Patch Work Ltd compare with other water systems in Waukesha County?

By EPA's size categories, Patch Work Ltd is a very small system (500 people or fewer). Waukesha County has 589 active public water systems. Its population served is well below the county average of 549 people per system, and accounts for less than 0.1% of the 323,265 people reported by systems filed under the county. Across Wisconsin, the 11,056 active systems average 469 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Patch Work Ltd is well below that figure.

What does “transient non-community water system” mean?

A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Wisconsin has 9,112 active transient non-community water systems, 82% 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 Patch Work Ltd?

EPA lists Patch Work Ltd 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. 452 of the 589 active systems in Waukesha County (77%) are also privately owned.

Does Patch Work Ltd 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 Patch Work Ltd. For the latest compliance status, check EPA ECHO for current compliance history.

Patch Work Ltd: frequently asked questions

Who runs Patch Work Ltd?

Patch Work Ltd (PWSID WI2680515) is a transient non-community water system privately owned. It is regulated by the WI state drinking water program.

How many people does Patch Work Ltd serve?

Patch Work Ltd reports serving 35 people through 1 service connection in Waukesha County, Wisconsin.

Where does Patch Work Ltd 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 Patch Work Ltd have any drinking water violations?

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

Is Patch Work Ltd'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 WI state drinking water program.

Where can I find Patch Work Ltd's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Patch Work Ltd is a 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 Waukesha County

Water systemCountyPopulation servedTypeSource
Waukesha Water UtilityWaukesha70,718CommunityPurchased surface water
Brookfield Water UtilityWaukesha29,070CommunityGroundwater
New Berlin Water UtilityWaukesha27,899CommunityPurchased surface water
Menomonee Falls Ww - Surface WaterWaukesha23,867CommunityPurchased surface water
Oconomowoc WaterworksWaukesha15,805CommunityGroundwater
Sussex Village Hall & Water UtilityWaukesha11,750CommunityGroundwater

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, “Patch Work Ltd, PWSID WI2680515, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/patch-work-ltd-wi2680515 (data as of October 1, 2026).