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Non-Transient Non-Community Water System · PWS WI2460873

East Towne Square 1340

Mequon, Wisconsin 53092 - drinking water served from groundwater sources to 130 people, tracked in EPA SDWIS and UCMR5.

130
People served
116
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 116 drinking-water violations at East Towne Square 1340 - above the Wisconsin per-system average.

116
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
130
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: East Towne Square 1340

East Towne Square 1340 is a private-owned non-transient non-community water system that delivers drinking water to 130 residents in Mequon, Wisconsin (Ozaukee County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 116 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 116 monitoring and reporting violations are on file. The most recent violation on record dates to 2013.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 7 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%).

East Towne Square 1340's 116 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
130
Total Violations
116
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Ozaukee
School/Daycare
No
MCL Violations
0
Monitoring Violations
116
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 7 2002
o-Dichlorobenzene MR 5 2013
Styrene MR 5 2013
Toluene MR 5 2013
Tetrachloroethylene MR 5 2013
Carbon tetrachloride MR 5 2013
1,1,1-Trichloroethane MR 5 2013
trans-1,2-Dichloroethylene MR 5 2013
DICHLOROMETHANE MR 5 2013
cis-1,2-Dichloroethylene MR 5 2013
CHLOROBENZENE MR 5 2013
1,2-Dichloroethane MR 5 2013
1,1,2-Trichloroethane MR 5 2013
Vinyl chloride MR 5 2013
Xylenes, Total MR 5 2013
1,2,4-Trichlorobenzene MR 5 2013
p-Dichlorobenzene MR 5 2013
Trichloroethylene MR 5 2013
1,1-Dichloroethylene MR 5 2013
Ethylbenzene MR 5 2013
Benzene MR 5 2013
1,2-Dichloropropane MR 5 2013
Lead and Copper Rule MR 3 1993
Nitrate MR 1 1993

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 East Towne Square 1340.

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 WI2460873 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 East Towne Square 1340 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
2013 o-Dichlorobenzene MR 5 SDWIS / WI2460873 / 2968
2013 Styrene MR 5 SDWIS / WI2460873 / 2996
2013 Toluene MR 5 SDWIS / WI2460873 / 2991
2013 Tetrachloroethylene MR 5 SDWIS / WI2460873 / 2987
2013 Carbon tetrachloride MR 5 SDWIS / WI2460873 / 2982
2013 1,1,1-Trichloroethane MR 5 SDWIS / WI2460873 / 2981
2013 trans-1,2-Dichloroethylene MR 5 SDWIS / WI2460873 / 2979
2013 DICHLOROMETHANE MR 5 SDWIS / WI2460873 / 2964
2013 cis-1,2-Dichloroethylene MR 5 SDWIS / WI2460873 / 2380
2013 CHLOROBENZENE MR 5 SDWIS / WI2460873 / 2989
2013 1,2-Dichloroethane MR 5 SDWIS / WI2460873 / 2980
2013 1,1,2-Trichloroethane MR 5 SDWIS / WI2460873 / 2985
2013 Vinyl chloride MR 5 SDWIS / WI2460873 / 2976
2013 Xylenes, Total MR 5 SDWIS / WI2460873 / 2955
2013 1,2,4-Trichlorobenzene MR 5 SDWIS / WI2460873 / 2378

How East Towne Square 1340 Compares

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

Metric East Towne Square 1340 Wisconsin avg Federal benchmark
Total violations 116 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 130 467 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 East Towne Square 1340 water safe to drink? ▼
East Towne Square 1340 (PWS ID: WI2460873) has 116 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 130 people using Groundwater sources.
How many people does East Towne Square 1340 serve? ▼
East Towne Square 1340 serves 130 people in Mequon, Wisconsin. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does East Towne Square 1340 have? ▼
East Towne Square 1340 has 116 total violations: 0 health-based violations (MCL exceedances or treatment failures), 116 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in East Towne Square 1340 water? ▼
No PFAS testing data is available for East Towne Square 1340 under the EPA's UCMR5 monitoring program.
What water source does East Towne Square 1340 use? ▼
East Towne Square 1340 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.