Public water system · WI2686554
ActiveMinooka Park Picnic Area # 5
At a glance
Minooka Park Picnic Area # 5 (PWSID WI2686554) is an active transient non-community water system in Waukesha County, Wisconsin. It reports serving 203 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 2 violations for this system; 1 is health-based, and the most recent began in November 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
203
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Minooka Park Picnic Area # 5 compare with other water systems in Waukesha County?
By EPA's size categories, Minooka Park Picnic Area # 5 is a very small system (500 people or fewer). Waukesha County has 589 active public water systems. Its population served is about 63% 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 Minooka Park Picnic Area # 5 is about 41% above 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 Minooka Park Picnic Area # 5?
EPA lists Minooka Park Picnic Area # 5 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 Minooka Park Picnic Area # 5 have drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in November 2020. The violations listed here began between November 2020 and November 2020. By type: 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (2 of them). EPA lists 2 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 |
|---|---|---|---|---|
| 2020-11-24 | Required treatment not metTreatment Technique, Level 2 Assessment (RTCR) · code 2B | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2020-11-24 | ReportingReporting, Assessment Forms (RTCR) · code 4A | Revised Total Coliform Rulecode 8000 | No | Resolved |
All 2 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.
Minooka Park Picnic Area # 5: frequently asked questions
Who runs Minooka Park Picnic Area # 5?
Minooka Park Picnic Area # 5 (PWSID WI2686554) 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 Minooka Park Picnic Area # 5 serve?
Minooka Park Picnic Area # 5 reports serving 203 people through 1 service connection in Waukesha County, Wisconsin.
Where does Minooka Park Picnic Area # 5 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 Minooka Park Picnic Area # 5 have any drinking water violations?
EPA's records list 2 violations for this system; 1 is health-based, and the most recent began in November 2020. 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 Minooka Park Picnic Area # 5'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 2 violations for this system; 1 is health-based, and the most recent began in November 2020. For current results, consult EPA ECHO, or the WI state drinking water program.
Where can I find Minooka Park Picnic Area # 5's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Minooka Park Picnic Area # 5 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, “Minooka Park Picnic Area # 5, PWSID WI2686554, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/minooka-park-picnic-area-5-wi2686554 (data as of October 1, 2026).