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Non-Transient Non-Community Water System · PWS WI1140395

Hnr Intermediate School

Neosho, Wisconsin 53059-0017 - drinking water served from groundwater sources to 185 people, tracked in EPA SDWIS and UCMR5.

185
People served
80
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 80 drinking-water violations at Hnr Intermediate School - above the Wisconsin per-system average.

80
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
185
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Hnr Intermediate School

Hnr Intermediate School is a local-owned non-transient non-community water system that delivers drinking water to 185 residents in Neosho, Wisconsin (Dodge County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 80 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 80 monitoring and reporting violations are on file. The most recent violation on record dates to 2014.

The most frequently cited contaminant at this system is Fluoride, recorded in 9 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, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%).

Hnr Intermediate School's 80 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
185
Total Violations
80
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
1
County
Dodge
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
80
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Fluoride MR 9 1996
Selenium MR 9 1996
Chromium MR 9 1996
Nitrite MR 9 1996
Mercury MR 9 1996
Arsenic MR 9 1996
Barium MR 9 1996
Cadmium MR 9 1996
Lead and Copper Rule MR 4 1993
Coliform (TCR) MR 4 2014

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 Hnr Intermediate School.

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 WI1140395 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 Hnr Intermediate School 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
2014 Coliform (TCR) MR 4 SDWIS / WI1140395 / 3100
1996 Fluoride MR 9 SDWIS / WI1140395 / 1025
1996 Selenium MR 9 SDWIS / WI1140395 / 1045
1996 Chromium MR 9 SDWIS / WI1140395 / 1020
1996 Nitrite MR 9 SDWIS / WI1140395 / 1041
1996 Mercury MR 9 SDWIS / WI1140395 / 1035
1996 Arsenic MR 9 SDWIS / WI1140395 / 1005
1996 Barium MR 9 SDWIS / WI1140395 / 1010
1996 Cadmium MR 9 SDWIS / WI1140395 / 1015
1993 Lead and Copper Rule MR 4 SDWIS / WI1140395 / 5000

How Hnr Intermediate School Compares

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

Metric Hnr Intermediate School Wisconsin avg Federal benchmark
Total violations 80 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 38.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 185 467 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 Hnr Intermediate School water safe to drink? ▼
Hnr Intermediate School (PWS ID: WI1140395) has 80 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 185 people using Groundwater sources.
How many people does Hnr Intermediate School serve? ▼
Hnr Intermediate School serves 185 people in Neosho, Wisconsin. It is a Local-owned system using Groundwater water sources with 1 service connections.
What type of violations does Hnr Intermediate School have? ▼
Hnr Intermediate School has 80 total violations: 0 health-based violations (MCL exceedances or treatment failures), 80 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Hnr Intermediate School water? ▼
No PFAS testing data is available for Hnr Intermediate School under the EPA's UCMR5 monitoring program.
What water source does Hnr Intermediate School use? ▼
Hnr Intermediate School 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.