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Community Water System · PWS WI1140439

North Hills MHP

Barrington, Wisconsin 60011-0414 - drinking water served from groundwater sources to 420 people, tracked in EPA SDWIS and UCMR5.

420
People served
59
EPA violations
46
Health-based
Untested
UCMR5 result

The verdict

EPA records 59 drinking-water violations at North Hills MHP, 78% of them health-based - above the Wisconsin per-system average.

59
Total EPA violations on record
78%
Health-based (MCL / treatment failure)
420
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: North Hills MHP

North Hills MHP is a private-owned community water system that delivers drinking water to 420 residents in Barrington, Wisconsin (Dodge County) through 142 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 59 total violations for this system , of which 46 (78%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 8 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Combined Radium (-226 and -228), recorded in 23 violations (MCL, health-based). 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, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%).

North Hills MHP's 59 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
420
Total Violations
59
Health-Based Violations
46
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
142
County
Dodge
School/Daycare
No
MCL Violations
46
Monitoring Violations
8
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MCL 23 2005
Gross Alpha, Excl. Radon and U MCL 23 2005
Lead and Copper Rule MR 4 2018
Revised Total Coliform Rule MON 4 2024
Consumer Confidence Rule Other 2 2013
Public Notice Other 1 2004

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 North Hills MHP.

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 WI1140439 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 North Hills MHP 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
2024 Revised Total Coliform Rule MON 4 SDWIS / WI1140439 / 8000
2018 Lead and Copper Rule MR 4 SDWIS / WI1140439 / 5000
2013 Consumer Confidence Rule Other 2 SDWIS / WI1140439 / 7000
2005 Combined Radium (-226 and -228) MCL 23 SDWIS / WI1140439 / 4010
2005 Gross Alpha, Excl. Radon and U MCL 23 SDWIS / WI1140439 / 4000
2004 Public Notice Other 1 SDWIS / WI1140439 / 7500

How North Hills MHP Compares

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

Metric North Hills MHP Wisconsin avg Federal benchmark
Total violations 59 26 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 46 5.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 38.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 420 467 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 North Hills MHP water safe to drink? ▼
North Hills MHP (PWS ID: WI1140439) has 59 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 420 people using Groundwater sources.
How many people does North Hills MHP serve? ▼
North Hills MHP serves 420 people in Barrington, Wisconsin. It is a Private-owned system using Groundwater water sources with 142 service connections.
What type of violations does North Hills MHP have? ▼
North Hills MHP has 59 total violations: 46 health-based violations (MCL exceedances or treatment failures), 8 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in North Hills MHP water? ▼
No PFAS testing data is available for North Hills MHP under the EPA's UCMR5 monitoring program.
What water source does North Hills MHP use? ▼
North Hills MHP uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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.