Public water system · WI2680320

Active

Nagawaukee Pk Beach House W1

At a glance

Nagawaukee Pk Beach House W1 (PWSID WI2680320) is an active transient non-community water system in Waukesha County, Wisconsin. It reports serving 100 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; none is health-based, and the most recent began in January 2021.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

100

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDWI2680320

System typeTransient non-community water system

Activity statusActive

Population served100

Service connections1

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyWI state drinking water program

City servedDelafield

StateWisconsin

ZIP—

CountyWaukesha County

How does Nagawaukee Pk Beach House W1 compare with other water systems in Waukesha County?

By EPA's size categories, Nagawaukee Pk Beach House W1 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 Nagawaukee Pk Beach House W1 is about 31% 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 Nagawaukee Pk Beach House W1?

EPA lists Nagawaukee Pk Beach House W1 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. 102 of the 589 active systems in Waukesha County (17%) are also owned by a local government.

Does Nagawaukee Pk Beach House W1 have drinking water violations?

EPA's records list 11 violations for this system; none is health-based, and the most recent began in January 2021. The violations listed here began between May 1994 and January 2021. By type: 5 monitoring, 4 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Revised Total Coliform Rule (5 of them). EPA lists 11 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
2021-01-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-01-01	MonitoringMonitoring, Additional Routine (RTCR) · code 3B	Revised Total Coliform Rulecode 8000	No	Resolved
2020-10-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2020-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2020-01-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2020-01-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2019-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2019-01-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
1995-04-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
1995-04-01	Monitoring and reportingMonitoring, Regular · code 03	Nitritecode 1041	No	Resolved
1994-05-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved

All 11 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.

Nagawaukee Pk Beach House W1: frequently asked questions

Who runs Nagawaukee Pk Beach House W1?

Nagawaukee Pk Beach House W1 (PWSID WI2680320) is a transient non-community water system owned by a local government. It is regulated by the WI state drinking water program.

How many people does Nagawaukee Pk Beach House W1 serve?

Nagawaukee Pk Beach House W1 reports serving 100 people through 1 service connection in Waukesha County, Wisconsin.

Where does Nagawaukee Pk Beach House W1 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 Nagawaukee Pk Beach House W1 have any drinking water violations?

EPA's records list 11 violations for this system; none is health-based, and the most recent began in January 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 Nagawaukee Pk Beach House W1'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 11 violations for this system; none is health-based, and the most recent began in January 2021. For current results, consult EPA ECHO, or the WI state drinking water program.

Where can I find Nagawaukee Pk Beach House W1's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Nagawaukee Pk Beach House W1 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 system	County	Population served	Type	Source
Waukesha Water Utility	Waukesha	70,718	Community	Purchased surface water
Brookfield Water Utility	Waukesha	29,070	Community	Groundwater
New Berlin Water Utility	Waukesha	27,899	Community	Purchased surface water
Menomonee Falls Ww - Surface Water	Waukesha	23,867	Community	Purchased surface water
Oconomowoc Waterworks	Waukesha	15,805	Community	Groundwater
Sussex Village Hall & Water Utility	Waukesha	11,750	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, “Nagawaukee Pk Beach House W1, PWSID WI2680320, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/nagawaukee-pk-beach-house-w1-wi2680320 (data as of October 1, 2026).