Non-Transient Non-Community Water System · PWS WI2680672

University Lake Upper School & Fine Arts Building

Hartland, Wisconsin 53029 - drinking water served from groundwater sources to 145 people, tracked in EPA SDWIS and UCMR5.

Compiled by PlainWater Editorial, Drinking Water Quality Editorial Team · May 15, 2026

145
People served: 355
EPA violations: 16
Health-based: Untested
UCMR5 result

The verdict

EPA records 355 drinking-water violations at University Lake Upper School & Fine Arts Building, 5% of them health-based - above the Wisconsin per-system average.

355
Total EPA violations on record: 5%
Health-based (MCL / treatment failure): 145
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: University Lake Upper School & Fine Arts Building

University Lake Upper School & Fine Arts Building is a private-owned non-transient non-community water system that delivers drinking water to 145 residents in Hartland, Wisconsin (Waukesha County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 355 total violations for this system , of which 16 (5%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 333 monitoring and reporting violations are on file. The most recent violation on record dates to 2005.

The most frequently cited contaminant at this system is cis-1,2-Dichloroethylene, recorded in 15 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Wisconsin, EPA tracks 10,988 public water systems serving 5,131,439 people, with 285,161 cumulative violations and 58,688 health-based violations on record. About 72% of systems in the state carry at least one violation, and state-wide the average per system is 26 violations. Statewide, 51 of 202 UCMR5-tested systems have reported PFAS detections (25.2%).

University Lake Upper School & Fine Arts Building's 355 violations sit above the Wisconsin average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served

145

Total Violations

355

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Non-Transient Non-Community
Owner Type: Private
Connections: 1
County: Waukesha
School/Daycare: Yes
MCL Violations: 16
Monitoring Violations: 333
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
cis-1,2-Dichloroethylene	MR	15	2004
o-Dichlorobenzene	MR	15	2004
p-Dichlorobenzene	MR	15	2004
Vinyl chloride	MR	15	2004
1,1-Dichloroethylene	MR	15	2004
trans-1,2-Dichloroethylene	MR	15	2004
1,2-Dichloroethane	MR	15	2004
1,1,2-Trichloroethane	MR	15	2004
CHLOROBENZENE	MR	15	2004
Benzene	MR	15	2004
Xylenes, Total	MR	15	2004
DICHLOROMETHANE	MR	15	2004
1,1,1-Trichloroethane	MR	15	2004
Carbon tetrachloride	MR	15	2004
Tetrachloroethylene	MR	15	2004
Toluene	MR	15	2004
Styrene	MR	15	2004
1,2,4-Trichlorobenzene	MR	15	2004
1,2-Dichloropropane	MR	15	2004
Trichloroethylene	MR	15	2004
Ethylbenzene	MR	15	2004
Coliform (TCR)	MR	13	2003
1,2-Dichloroethane	MCL	10	2005
Public Notice	Other	6	2005
Coliform (TCR)	MCL	6	1992
Lead and Copper Rule	MR	3	1993
Nitrate	MR	2	1994

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for University Lake Upper School & Fine Arts Building.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID WI2680672 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Wisconsin Drinking Water Authority

Wisconsin DNR, Drinking Water and Groundwater is the primacy agency that licenses and inspects University Lake Upper School & Fine Arts Building under EPA-delegated authority.

Open WI regulator portal

Source: Wisconsin DNR, Drinking Water and Groundwater

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest)	Contaminant	Category	Count	EPA Record
2005	1,2-Dichloroethane	MCL	10	SDWIS / WI2680672 / 2980
2005	Public Notice	Other	6	SDWIS / WI2680672 / 7500
2004	cis-1,2-Dichloroethylene	MR	15	SDWIS / WI2680672 / 2380
2004	o-Dichlorobenzene	MR	15	SDWIS / WI2680672 / 2968
2004	p-Dichlorobenzene	MR	15	SDWIS / WI2680672 / 2969
2004	Vinyl chloride	MR	15	SDWIS / WI2680672 / 2976
2004	1,1-Dichloroethylene	MR	15	SDWIS / WI2680672 / 2977
2004	trans-1,2-Dichloroethylene	MR	15	SDWIS / WI2680672 / 2979
2004	1,2-Dichloroethane	MR	15	SDWIS / WI2680672 / 2980
2004	1,1,2-Trichloroethane	MR	15	SDWIS / WI2680672 / 2985
2004	CHLOROBENZENE	MR	15	SDWIS / WI2680672 / 2989
2004	Benzene	MR	15	SDWIS / WI2680672 / 2990
2004	Xylenes, Total	MR	15	SDWIS / WI2680672 / 2955
2004	DICHLOROMETHANE	MR	15	SDWIS / WI2680672 / 2964
2004	1,1,1-Trichloroethane	MR	15	SDWIS / WI2680672 / 2981

How University Lake Upper School & Fine Arts Building Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric	University Lake Upper School & Fine Arts Building	Wisconsin avg	Federal benchmark
Total violations	355	26	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	16	5.3	Indicates a contaminant exceeded a federal MCL
PFAS detection	None	25.2%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	145	467	Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 10,988 regulated public water systems in Wisconsin.

Federal MCL reference, Safe Drinking Water Act thresholds ▼

Contaminant	Federal MCL / Action Level	Note
Lead	0 mg/L (Action Level: 0.015 mg/L)	Lead and Copper Rule treatment technique
Arsenic	0.010 mg/L (10 ppb)	Health-based MCL since 2006
Total Coliform	Treatment technique (RTCR)	Indicator organism, monitoring trigger
PFOA / PFOS (PFAS)	4.0 ppt each (final 2024 rule)	Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N)	10 mg/L	Acute health risk for infants

Frequently Asked Questions

Is University Lake Upper School & Fine Arts Building water safe to drink? ▼

University Lake Upper School & Fine Arts Building (PWS ID: WI2680672) has 355 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 145 people using Groundwater sources.

How many people does University Lake Upper School & Fine Arts Building serve? ▼

University Lake Upper School & Fine Arts Building serves 145 people in Hartland, Wisconsin. It is a Private-owned system using Groundwater water sources with 1 service connections.

What type of violations does University Lake Upper School & Fine Arts Building have? ▼

University Lake Upper School & Fine Arts Building has 355 total violations: 16 health-based violations (MCL exceedances or treatment failures), 333 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in University Lake Upper School & Fine Arts Building water? ▼

No PFAS testing data is available for University Lake Upper School & Fine Arts Building under the EPA's UCMR5 monitoring program.

What water source does University Lake Upper School & Fine Arts Building use? ▼

University Lake Upper School & Fine Arts Building uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.

Where does this data come from? ▼

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.